From: Hans de Goede hdegoede@redhat.com

[ Upstream commit aec7d25b497ce4a8d044e9496de0aa433f7f8f06 ]

On Goldmont p2sb_bar() only ever gets called for 2 devices, the actual P2SB devfn 13,0 and the SPI controller which is part of the P2SB, devfn 13,2.

But the current p2sb code tries to cache BAR0 info for all of devfn 13,0 to 13,7 . This involves calling pci_scan_single_device() for device 13 functions 0-7 and the hw does not seem to like pci_scan_single_device() getting called for some of the other hidden devices. E.g. on an ASUS VivoBook D540NV-GQ065T this leads to continuous ACPI errors leading to high CPU usage.

Fix this by only caching BAR0 info and thus only calling pci_scan_single_device() for the P2SB and the SPI controller.

Fixes: 5913320eb0b3 ("platform/x86: p2sb: Allow p2sb_bar() calls during PCI device probe") Reported-by: Danil Rybakov danilrybakov249@gmail.com Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218531 Tested-by: Danil Rybakov danilrybakov249@gmail.com Signed-off-by: Hans de Goede hdegoede@redhat.com Link: https://lore.kernel.org/r/20240304134356.305375-2-hdegoede@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/p2sb.c | 25 +++++++++---------------- 1 file changed, 9 insertions(+), 16 deletions(-)

diff --git a/drivers/platform/x86/p2sb.c b/drivers/platform/x86/p2sb.c index 17cc4b45e0239..a64f56ddd4a44 100644 --- a/drivers/platform/x86/p2sb.c +++ b/drivers/platform/x86/p2sb.c @@ -20,9 +20,11 @@ #define P2SBC_HIDE BIT(8)

#define P2SB_DEVFN_DEFAULT PCI_DEVFN(31, 1) +#define P2SB_DEVFN_GOLDMONT PCI_DEVFN(13, 0) +#define SPI_DEVFN_GOLDMONT PCI_DEVFN(13, 2)

static const struct x86_cpu_id p2sb_cpu_ids[] = { - X86_MATCH_INTEL_FAM6_MODEL(ATOM_GOLDMONT, PCI_DEVFN(13, 0)), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_GOLDMONT, P2SB_DEVFN_GOLDMONT), {} };

@@ -98,21 +100,12 @@ static void p2sb_scan_and_cache_devfn(struct pci_bus *bus, unsigned int devfn)

static int p2sb_scan_and_cache(struct pci_bus *bus, unsigned int devfn) { - unsigned int slot, fn; - - if (PCI_FUNC(devfn) == 0) { - /* - * When function number of the P2SB device is zero, scan it and - * other function numbers, and if devices are available, cache - * their BAR0s. - */ - slot = PCI_SLOT(devfn); - for (fn = 0; fn < NR_P2SB_RES_CACHE; fn++) - p2sb_scan_and_cache_devfn(bus, PCI_DEVFN(slot, fn)); - } else { - /* Scan the P2SB device and cache its BAR0 */ - p2sb_scan_and_cache_devfn(bus, devfn); - } + /* Scan the P2SB device and cache its BAR0 */ + p2sb_scan_and_cache_devfn(bus, devfn); + + /* On Goldmont p2sb_bar() also gets called for the SPI controller */ + if (devfn == P2SB_DEVFN_GOLDMONT) + p2sb_scan_and_cache_devfn(bus, SPI_DEVFN_GOLDMONT);

if (!p2sb_valid_resource(&p2sb_resources[PCI_FUNC(devfn)].res)) return -ENOENT;

From: Jens Axboe axboe@kernel.dk

This is dead code after we dropped support for passing io_uring fds over SCM_RIGHTS, get rid of it.

Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin sashal@kernel.org --- include/linux/io_uring_types.h | 3 - io_uring/filetable.c | 11 +-- io_uring/io_uring.c | 32 +------ io_uring/rsrc.c | 169 +-------------------------------- io_uring/rsrc.h | 15 --- 5 files changed, 10 insertions(+), 220 deletions(-)

diff --git a/include/linux/io_uring_types.h b/include/linux/io_uring_types.h index 5fd664fb71c86..731beb3198c4f 100644 --- a/include/linux/io_uring_types.h +++ b/include/linux/io_uring_types.h @@ -347,9 +347,6 @@ struct io_ring_ctx {

struct list_head io_buffers_pages;

- #if defined(CONFIG_UNIX) - struct socket *ring_sock; - #endif /* hashed buffered write serialization */ struct io_wq_hash *hash_map;

diff --git a/io_uring/filetable.c b/io_uring/filetable.c index e7d749991de42..6e86e6188dbee 100644 --- a/io_uring/filetable.c +++ b/io_uring/filetable.c @@ -87,13 +87,10 @@ static int io_install_fixed_file(struct io_ring_ctx *ctx, struct file *file, io_file_bitmap_clear(&ctx->file_table, slot_index); }

- ret = io_scm_file_account(ctx, file); - if (!ret) { - *io_get_tag_slot(ctx->file_data, slot_index) = 0; - io_fixed_file_set(file_slot, file); - io_file_bitmap_set(&ctx->file_table, slot_index); - } - return ret; + *io_get_tag_slot(ctx->file_data, slot_index) = 0; + io_fixed_file_set(file_slot, file); + io_file_bitmap_set(&ctx->file_table, slot_index); + return 0; }

int __io_fixed_fd_install(struct io_ring_ctx *ctx, struct file *file, diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index 747d2a6ecab89..2744d72f10858 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -60,7 +60,6 @@ #include <linux/net.h> #include <net/sock.h> #include <net/af_unix.h> -#include <net/scm.h> #include <linux/anon_inodes.h> #include <linux/sched/mm.h> #include <linux/uaccess.h> @@ -2931,13 +2930,6 @@ static __cold void io_ring_ctx_free(struct io_ring_ctx *ctx) io_rsrc_node_destroy(ctx, ctx->rsrc_node);

WARN_ON_ONCE(!list_empty(&ctx->rsrc_ref_list)); - -#if defined(CONFIG_UNIX) - if (ctx->ring_sock) { - ctx->ring_sock->file = NULL; /* so that iput() is called */ - sock_release(ctx->ring_sock); - } -#endif WARN_ON_ONCE(!list_empty(&ctx->ltimeout_list));

io_alloc_cache_free(&ctx->rsrc_node_cache, io_rsrc_node_cache_free); @@ -3825,32 +3817,12 @@ static int io_uring_install_fd(struct file *file) /* * Allocate an anonymous fd, this is what constitutes the application * visible backing of an io_uring instance. The application mmaps this - * fd to gain access to the SQ/CQ ring details. If UNIX sockets are enabled, - * we have to tie this fd to a socket for file garbage collection purposes. + * fd to gain access to the SQ/CQ ring details. */ static struct file *io_uring_get_file(struct io_ring_ctx *ctx) { - struct file *file; -#if defined(CONFIG_UNIX) - int ret; - - ret = sock_create_kern(&init_net, PF_UNIX, SOCK_RAW, IPPROTO_IP, - &ctx->ring_sock); - if (ret) - return ERR_PTR(ret); -#endif - - file = anon_inode_getfile_secure("[io_uring]", &io_uring_fops, ctx, + return anon_inode_getfile_secure("[io_uring]", &io_uring_fops, ctx, O_RDWR | O_CLOEXEC, NULL); -#if defined(CONFIG_UNIX) - if (IS_ERR(file)) { - sock_release(ctx->ring_sock); - ctx->ring_sock = NULL; - } else { - ctx->ring_sock->file = file; - } -#endif - return file; }

static __cold int io_uring_create(unsigned entries, struct io_uring_params *p, diff --git a/io_uring/rsrc.c b/io_uring/rsrc.c index dde501abd7196..95230921b16d0 100644 --- a/io_uring/rsrc.c +++ b/io_uring/rsrc.c @@ -24,7 +24,6 @@ struct io_rsrc_update { };

static void io_rsrc_buf_put(struct io_ring_ctx *ctx, struct io_rsrc_put *prsrc); -static void io_rsrc_file_put(struct io_ring_ctx *ctx, struct io_rsrc_put *prsrc); static int io_sqe_buffer_register(struct io_ring_ctx *ctx, struct iovec *iov, struct io_mapped_ubuf **pimu, struct page **last_hpage); @@ -157,7 +156,7 @@ static void io_rsrc_put_work(struct io_rsrc_node *node)

switch (node->type) { case IORING_RSRC_FILE: - io_rsrc_file_put(node->ctx, prsrc); + fput(prsrc->file); break; case IORING_RSRC_BUFFER: io_rsrc_buf_put(node->ctx, prsrc); @@ -402,23 +401,13 @@ static int __io_sqe_files_update(struct io_ring_ctx *ctx, break; } /* - * Don't allow io_uring instances to be registered. If - * UNIX isn't enabled, then this causes a reference - * cycle and this instance can never get freed. If UNIX - * is enabled we'll handle it just fine, but there's - * still no point in allowing a ring fd as it doesn't - * support regular read/write anyway. + * Don't allow io_uring instances to be registered. */ if (io_is_uring_fops(file)) { fput(file); err = -EBADF; break; } - err = io_scm_file_account(ctx, file); - if (err) { - fput(file); - break; - } *io_get_tag_slot(data, i) = tag; io_fixed_file_set(file_slot, file); io_file_bitmap_set(&ctx->file_table, i); @@ -675,22 +664,12 @@ void __io_sqe_files_unregister(struct io_ring_ctx *ctx) for (i = 0; i < ctx->nr_user_files; i++) { struct file *file = io_file_from_index(&ctx->file_table, i);

- /* skip scm accounted files, they'll be freed by ->ring_sock */ - if (!file || io_file_need_scm(file)) + if (!file) continue; io_file_bitmap_clear(&ctx->file_table, i); fput(file); }

-#if defined(CONFIG_UNIX) - if (ctx->ring_sock) { - struct sock *sock = ctx->ring_sock->sk; - struct sk_buff *skb; - - while ((skb = skb_dequeue(&sock->sk_receive_queue)) != NULL) - kfree_skb(skb); - } -#endif io_free_file_tables(&ctx->file_table); io_file_table_set_alloc_range(ctx, 0, 0); io_rsrc_data_free(ctx->file_data); @@ -718,137 +697,6 @@ int io_sqe_files_unregister(struct io_ring_ctx *ctx) return ret; }

-/* - * Ensure the UNIX gc is aware of our file set, so we are certain that - * the io_uring can be safely unregistered on process exit, even if we have - * loops in the file referencing. We account only files that can hold other - * files because otherwise they can't form a loop and so are not interesting - * for GC. - */ -int __io_scm_file_account(struct io_ring_ctx *ctx, struct file *file) -{ -#if defined(CONFIG_UNIX) - struct sock *sk = ctx->ring_sock->sk; - struct sk_buff_head *head = &sk->sk_receive_queue; - struct scm_fp_list *fpl; - struct sk_buff *skb; - - if (likely(!io_file_need_scm(file))) - return 0; - - /* - * See if we can merge this file into an existing skb SCM_RIGHTS - * file set. If there's no room, fall back to allocating a new skb - * and filling it in. - */ - spin_lock_irq(&head->lock); - skb = skb_peek(head); - if (skb && UNIXCB(skb).fp->count < SCM_MAX_FD) - __skb_unlink(skb, head); - else - skb = NULL; - spin_unlock_irq(&head->lock); - - if (!skb) { - fpl = kzalloc(sizeof(*fpl), GFP_KERNEL); - if (!fpl) - return -ENOMEM; - - skb = alloc_skb(0, GFP_KERNEL); - if (!skb) { - kfree(fpl); - return -ENOMEM; - } - - fpl->user = get_uid(current_user()); - fpl->max = SCM_MAX_FD; - fpl->count = 0; - - UNIXCB(skb).fp = fpl; - skb->sk = sk; - skb->destructor = io_uring_destruct_scm; - refcount_add(skb->truesize, &sk->sk_wmem_alloc); - } - - fpl = UNIXCB(skb).fp; - fpl->fp[fpl->count++] = get_file(file); - unix_inflight(fpl->user, file); - skb_queue_head(head, skb); - fput(file); -#endif - return 0; -} - -static __cold void io_rsrc_file_scm_put(struct io_ring_ctx *ctx, struct file *file) -{ -#if defined(CONFIG_UNIX) - struct sock *sock = ctx->ring_sock->sk; - struct sk_buff_head list, *head = &sock->sk_receive_queue; - struct sk_buff *skb; - int i; - - __skb_queue_head_init(&list); - - /* - * Find the skb that holds this file in its SCM_RIGHTS. When found, - * remove this entry and rearrange the file array. - */ - skb = skb_dequeue(head); - while (skb) { - struct scm_fp_list *fp; - - fp = UNIXCB(skb).fp; - for (i = 0; i < fp->count; i++) { - int left; - - if (fp->fp[i] != file) - continue; - - unix_notinflight(fp->user, fp->fp[i]); - left = fp->count - 1 - i; - if (left) { - memmove(&fp->fp[i], &fp->fp[i + 1], - left * sizeof(struct file *)); - } - fp->count--; - if (!fp->count) { - kfree_skb(skb); - skb = NULL; - } else { - __skb_queue_tail(&list, skb); - } - fput(file); - file = NULL; - break; - } - - if (!file) - break; - - __skb_queue_tail(&list, skb); - - skb = skb_dequeue(head); - } - - if (skb_peek(&list)) { - spin_lock_irq(&head->lock); - while ((skb = __skb_dequeue(&list)) != NULL) - __skb_queue_tail(head, skb); - spin_unlock_irq(&head->lock); - } -#endif -} - -static void io_rsrc_file_put(struct io_ring_ctx *ctx, struct io_rsrc_put *prsrc) -{ - struct file *file = prsrc->file; - - if (likely(!io_file_need_scm(file))) - fput(file); - else - io_rsrc_file_scm_put(ctx, file); -} - int io_sqe_files_register(struct io_ring_ctx *ctx, void __user *arg, unsigned nr_args, u64 __user *tags) { @@ -897,21 +745,12 @@ int io_sqe_files_register(struct io_ring_ctx *ctx, void __user *arg, goto fail;

/* - * Don't allow io_uring instances to be registered. If UNIX - * isn't enabled, then this causes a reference cycle and this - * instance can never get freed. If UNIX is enabled we'll - * handle it just fine, but there's still no point in allowing - * a ring fd as it doesn't support regular read/write anyway. + * Don't allow io_uring instances to be registered. */ if (io_is_uring_fops(file)) { fput(file); goto fail; } - ret = io_scm_file_account(ctx, file); - if (ret) { - fput(file); - goto fail; - } file_slot = io_fixed_file_slot(&ctx->file_table, i); io_fixed_file_set(file_slot, file); io_file_bitmap_set(&ctx->file_table, i); diff --git a/io_uring/rsrc.h b/io_uring/rsrc.h index 08ac0d8e07ef8..7238b9cfe33b6 100644 --- a/io_uring/rsrc.h +++ b/io_uring/rsrc.h @@ -75,21 +75,6 @@ int io_sqe_files_unregister(struct io_ring_ctx *ctx); int io_sqe_files_register(struct io_ring_ctx *ctx, void __user *arg, unsigned nr_args, u64 __user *tags);

-int __io_scm_file_account(struct io_ring_ctx *ctx, struct file *file); - -static inline bool io_file_need_scm(struct file *filp) -{ - return false; -} - -static inline int io_scm_file_account(struct io_ring_ctx *ctx, - struct file *file) -{ - if (likely(!io_file_need_scm(file))) - return 0; - return __io_scm_file_account(ctx, file); -} - int io_register_files_update(struct io_ring_ctx *ctx, void __user *arg, unsigned nr_args); int io_register_rsrc_update(struct io_ring_ctx *ctx, void __user *arg,

From: Tomi Valkeinen tomi.valkeinen@ideasonboard.com

[ Upstream commit ffb635bb398fc07cb38f8a7b4a82cbe5f412f08e ]

The driver requests the interrupts as IRQF_SHARED, so the interrupt handlers can be called at any time. If such a call happens while the ISP is powered down, the SoC will hang as the driver tries to access the ISP registers.

This can be reproduced even without the platform sharing the IRQ line: Enable CONFIG_DEBUG_SHIRQ and unload the driver, and the board will hang.

Fix this by adding a new field, 'irqs_enabled', which is used to bail out from the interrupt handler when the ISP is not operational.

Link: https://lore.kernel.org/r/20231218-rkisp-shirq-fix-v1-2-173007628248@ideason...

Signed-off-by: Tomi Valkeinen tomi.valkeinen@ideasonboard.com Signed-off-by: Laurent Pinchart laurent.pinchart@ideasonboard.com Signed-off-by: Mauro Carvalho Chehab mchehab@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- .../platform/rockchip/rkisp1/rkisp1-capture.c | 3 +++ .../platform/rockchip/rkisp1/rkisp1-common.h | 2 ++ .../platform/rockchip/rkisp1/rkisp1-csi.c | 3 +++ .../platform/rockchip/rkisp1/rkisp1-dev.c | 22 +++++++++++++++++++ .../platform/rockchip/rkisp1/rkisp1-isp.c | 3 +++ 5 files changed, 33 insertions(+)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c index 8f3cba3197623..c584bb6d31998 100644 --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-capture.c @@ -723,6 +723,9 @@ irqreturn_t rkisp1_capture_isr(int irq, void *ctx) unsigned int i; u32 status;

+ if (!rkisp1->irqs_enabled) + return IRQ_NONE; + status = rkisp1_read(rkisp1, RKISP1_CIF_MI_MIS); if (!status) return IRQ_NONE; diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h index 104a1dbeff433..e9bc6c155d2fc 100644 --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h @@ -467,6 +467,7 @@ struct rkisp1_debug { * @debug: debug params to be exposed on debugfs * @info: version-specific ISP information * @irqs: IRQ line numbers + * @irqs_enabled: the hardware is enabled and can cause interrupts */ struct rkisp1_device { void __iomem *base_addr; @@ -488,6 +489,7 @@ struct rkisp1_device { struct rkisp1_debug debug; const struct rkisp1_info *info; int irqs[RKISP1_NUM_IRQS]; + bool irqs_enabled; };

/* diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-csi.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-csi.c index 0a67eb96402cb..1537dccbd2e28 100644 --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-csi.c +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-csi.c @@ -211,6 +211,9 @@ irqreturn_t rkisp1_csi_isr(int irq, void *ctx) struct rkisp1_device *rkisp1 = dev_get_drvdata(dev); u32 val, status;

+ if (!rkisp1->irqs_enabled) + return IRQ_NONE; + status = rkisp1_read(rkisp1, RKISP1_CIF_MIPI_MIS); if (!status) return IRQ_NONE; diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c index acc559652d6eb..73cf08a740118 100644 --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c @@ -305,6 +305,24 @@ static int __maybe_unused rkisp1_runtime_suspend(struct device *dev) { struct rkisp1_device *rkisp1 = dev_get_drvdata(dev);

+ rkisp1->irqs_enabled = false; + /* Make sure the IRQ handler will see the above */ + mb(); + + /* + * Wait until any running IRQ handler has returned. The IRQ handler + * may get called even after this (as it's a shared interrupt line) + * but the 'irqs_enabled' flag will make the handler return immediately. + */ + for (unsigned int il = 0; il < ARRAY_SIZE(rkisp1->irqs); ++il) { + if (rkisp1->irqs[il] == -1) + continue; + + /* Skip if the irq line is the same as previous */ + if (il == 0 || rkisp1->irqs[il - 1] != rkisp1->irqs[il]) + synchronize_irq(rkisp1->irqs[il]); + } + clk_bulk_disable_unprepare(rkisp1->clk_size, rkisp1->clks); return pinctrl_pm_select_sleep_state(dev); } @@ -321,6 +339,10 @@ static int __maybe_unused rkisp1_runtime_resume(struct device *dev) if (ret) return ret;

+ rkisp1->irqs_enabled = true; + /* Make sure the IRQ handler will see the above */ + mb(); + return 0; }

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c index 2239fb6c7d393..8fc9c1c116f1d 100644 --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c @@ -1027,6 +1027,9 @@ irqreturn_t rkisp1_isp_isr(int irq, void *ctx) struct rkisp1_device *rkisp1 = dev_get_drvdata(dev); u32 status, isp_err;

+ if (!rkisp1->irqs_enabled) + return IRQ_NONE; + status = rkisp1_read(rkisp1, RKISP1_CIF_ISP_MIS); if (!status) return IRQ_NONE;

From: Daniel Gabay daniel.gabay@intel.com

[ Upstream commit 2e57b77583ca34fdb6e14f253172636c52f81cf2 ]

As described in IEEE sta 802.11-2020, table 9-30 (Address field contents), A-MSDU address 3 should contain the BSSID address.

In TX_CMD we copy the MAC header from skb, and skb address 3 holds the destination address, but it may not be identical to the BSSID.

Using the wrong destination address appears to work with (most) receivers without MLO, but in MLO some devices are checking for it carefully, perhaps as a consequence of link to MLD address translation.

Replace address 3 in the TX_CMD MAC header with the correct address while retaining the skb address 3 unchanged. This ensures that skb address 3 will be utilized later for constructing the A-MSDU subframes.

Note that we fill in the MLD address, but the firmware will do the necessary translation to link address after encryption.

Signed-off-by: Daniel Gabay daniel.gabay@intel.com Signed-off-by: Miri Korenblit miriam.rachel.korenblit@intel.com Link: https://msgid.link/20240204235836.4583a1bf9188.I3f8e7892bdf8f86b4daa28453771... Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/intel/iwlwifi/mvm/tx.c | 69 ++++++++++++++++++--- 1 file changed, 59 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c index 6fdb2c38518e3..4ea3aabc64883 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c @@ -500,13 +500,24 @@ static void iwl_mvm_set_tx_cmd_crypto(struct iwl_mvm *mvm, } }

+static void iwl_mvm_copy_hdr(void *cmd, const void *hdr, int hdrlen, + const u8 *addr3_override) +{ + struct ieee80211_hdr *out_hdr = cmd; + + memcpy(cmd, hdr, hdrlen); + if (addr3_override) + memcpy(out_hdr->addr3, addr3_override, ETH_ALEN); +} + /* * Allocates and sets the Tx cmd the driver data pointers in the skb */ static struct iwl_device_tx_cmd * iwl_mvm_set_tx_params(struct iwl_mvm *mvm, struct sk_buff *skb, struct ieee80211_tx_info *info, int hdrlen, - struct ieee80211_sta *sta, u8 sta_id) + struct ieee80211_sta *sta, u8 sta_id, + const u8 *addr3_override) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; struct iwl_device_tx_cmd *dev_cmd; @@ -564,7 +575,7 @@ iwl_mvm_set_tx_params(struct iwl_mvm *mvm, struct sk_buff *skb, cmd->len = cpu_to_le16((u16)skb->len);

/* Copy MAC header from skb into command buffer */ - memcpy(cmd->hdr, hdr, hdrlen); + iwl_mvm_copy_hdr(cmd->hdr, hdr, hdrlen, addr3_override);

cmd->flags = cpu_to_le16(flags); cmd->rate_n_flags = cpu_to_le32(rate_n_flags); @@ -579,7 +590,7 @@ iwl_mvm_set_tx_params(struct iwl_mvm *mvm, struct sk_buff *skb, cmd->len = cpu_to_le16((u16)skb->len);

/* Copy MAC header from skb into command buffer */ - memcpy(cmd->hdr, hdr, hdrlen); + iwl_mvm_copy_hdr(cmd->hdr, hdr, hdrlen, addr3_override);

cmd->flags = cpu_to_le32(flags); cmd->rate_n_flags = cpu_to_le32(rate_n_flags); @@ -597,7 +608,7 @@ iwl_mvm_set_tx_params(struct iwl_mvm *mvm, struct sk_buff *skb, iwl_mvm_set_tx_cmd_rate(mvm, tx_cmd, info, sta, hdr->frame_control);

/* Copy MAC header from skb into command buffer */ - memcpy(tx_cmd->hdr, hdr, hdrlen); + iwl_mvm_copy_hdr(tx_cmd->hdr, hdr, hdrlen, addr3_override);

out: return dev_cmd; @@ -800,7 +811,8 @@ int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb)

IWL_DEBUG_TX(mvm, "station Id %d, queue=%d\n", sta_id, queue);

- dev_cmd = iwl_mvm_set_tx_params(mvm, skb, &info, hdrlen, NULL, sta_id); + dev_cmd = iwl_mvm_set_tx_params(mvm, skb, &info, hdrlen, NULL, sta_id, + NULL); if (!dev_cmd) return -1;

@@ -1120,7 +1132,8 @@ static int iwl_mvm_tx_pkt_queued(struct iwl_mvm *mvm, */ static int iwl_mvm_tx_mpdu(struct iwl_mvm *mvm, struct sk_buff *skb, struct ieee80211_tx_info *info, - struct ieee80211_sta *sta) + struct ieee80211_sta *sta, + const u8 *addr3_override) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; struct iwl_mvm_sta *mvmsta; @@ -1152,7 +1165,8 @@ static int iwl_mvm_tx_mpdu(struct iwl_mvm *mvm, struct sk_buff *skb, iwl_mvm_probe_resp_set_noa(mvm, skb);

dev_cmd = iwl_mvm_set_tx_params(mvm, skb, info, hdrlen, - sta, mvmsta->deflink.sta_id); + sta, mvmsta->deflink.sta_id, + addr3_override); if (!dev_cmd) goto drop;

@@ -1274,9 +1288,11 @@ int iwl_mvm_tx_skb_sta(struct iwl_mvm *mvm, struct sk_buff *skb, struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); struct ieee80211_tx_info info; struct sk_buff_head mpdus_skbs; + struct ieee80211_vif *vif; unsigned int payload_len; int ret; struct sk_buff *orig_skb = skb; + const u8 *addr3;

if (WARN_ON_ONCE(!mvmsta)) return -1; @@ -1287,26 +1303,59 @@ int iwl_mvm_tx_skb_sta(struct iwl_mvm *mvm, struct sk_buff *skb, memcpy(&info, skb->cb, sizeof(info));

if (!skb_is_gso(skb)) - return iwl_mvm_tx_mpdu(mvm, skb, &info, sta); + return iwl_mvm_tx_mpdu(mvm, skb, &info, sta, NULL);

payload_len = skb_tail_pointer(skb) - skb_transport_header(skb) - tcp_hdrlen(skb) + skb->data_len;

if (payload_len <= skb_shinfo(skb)->gso_size) - return iwl_mvm_tx_mpdu(mvm, skb, &info, sta); + return iwl_mvm_tx_mpdu(mvm, skb, &info, sta, NULL);

__skb_queue_head_init(&mpdus_skbs);

+ vif = info.control.vif; + if (!vif) + return -1; + ret = iwl_mvm_tx_tso(mvm, skb, &info, sta, &mpdus_skbs); if (ret) return ret;

WARN_ON(skb_queue_empty(&mpdus_skbs));

+ /* + * As described in IEEE sta 802.11-2020, table 9-30 (Address + * field contents), A-MSDU address 3 should contain the BSSID + * address. + * Pass address 3 down to iwl_mvm_tx_mpdu() and further to set it + * in the command header. We need to preserve the original + * address 3 in the skb header to correctly create all the + * A-MSDU subframe headers from it. + */ + switch (vif->type) { + case NL80211_IFTYPE_STATION: + addr3 = vif->cfg.ap_addr; + break; + case NL80211_IFTYPE_AP: + addr3 = vif->addr; + break; + default: + addr3 = NULL; + break; + } + while (!skb_queue_empty(&mpdus_skbs)) { + struct ieee80211_hdr *hdr; + bool amsdu; + skb = __skb_dequeue(&mpdus_skbs); + hdr = (void *)skb->data; + amsdu = ieee80211_is_data_qos(hdr->frame_control) && + (*ieee80211_get_qos_ctl(hdr) & + IEEE80211_QOS_CTL_A_MSDU_PRESENT);

- ret = iwl_mvm_tx_mpdu(mvm, skb, &info, sta); + ret = iwl_mvm_tx_mpdu(mvm, skb, &info, sta, + amsdu ? addr3 : NULL); if (ret) { /* Free skbs created as part of TSO logic that have not yet been dequeued */ __skb_queue_purge(&mpdus_skbs);

From: Aaron Conole aconole@redhat.com

[ Upstream commit bd128f62c365504e1268dc09fcccdfb1f091e93a ]

Add a test case into the netlink checks that will show the number of nested action recursions won't exceed 16. Going to 17 on a small clone call isn't enough to exhaust the stack on (most) systems, so it should be safe to run even on systems that don't have the fix applied.

Signed-off-by: Aaron Conole aconole@redhat.com Reviewed-by: Simon Horman horms@kernel.org Link: https://lore.kernel.org/r/20240207132416.1488485-3-aconole@redhat.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- .../selftests/net/openvswitch/openvswitch.sh | 13 ++++ .../selftests/net/openvswitch/ovs-dpctl.py | 71 +++++++++++++++---- 2 files changed, 69 insertions(+), 15 deletions(-)

diff --git a/tools/testing/selftests/net/openvswitch/openvswitch.sh b/tools/testing/selftests/net/openvswitch/openvswitch.sh index f8499d4c87f3f..36e40256ab92a 100755 --- a/tools/testing/selftests/net/openvswitch/openvswitch.sh +++ b/tools/testing/selftests/net/openvswitch/openvswitch.sh @@ -502,7 +502,20 @@ test_netlink_checks () { wc -l) == 2 ] || \ return 1

+ info "Checking clone depth" ERR_MSG="Flow actions may not be safe on all matching packets" + PRE_TEST=$(dmesg | grep -c "${ERR_MSG}") + ovs_add_flow "test_netlink_checks" nv0 \ + 'in_port(1),eth(),eth_type(0x800),ipv4()' \ + 'clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(drop)))))))))))))))))' \ + >/dev/null 2>&1 && return 1 + POST_TEST=$(dmesg | grep -c "${ERR_MSG}") + + if [ "$PRE_TEST" == "$POST_TEST" ]; then + info "failed - clone depth too large" + return 1 + fi + PRE_TEST=$(dmesg | grep -c "${ERR_MSG}") ovs_add_flow "test_netlink_checks" nv0 \ 'in_port(1),eth(),eth_type(0x0806),arp()' 'drop(0),2' \ diff --git a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py index b97e621face95..5e0e539a323d5 100644 --- a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py +++ b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py @@ -299,7 +299,7 @@ class ovsactions(nla): ("OVS_ACTION_ATTR_PUSH_NSH", "none"), ("OVS_ACTION_ATTR_POP_NSH", "flag"), ("OVS_ACTION_ATTR_METER", "none"), - ("OVS_ACTION_ATTR_CLONE", "none"), + ("OVS_ACTION_ATTR_CLONE", "recursive"), ("OVS_ACTION_ATTR_CHECK_PKT_LEN", "none"), ("OVS_ACTION_ATTR_ADD_MPLS", "none"), ("OVS_ACTION_ATTR_DEC_TTL", "none"), @@ -465,29 +465,42 @@ class ovsactions(nla): print_str += "pop_mpls" else: datum = self.get_attr(field[0]) - print_str += datum.dpstr(more) + if field[0] == "OVS_ACTION_ATTR_CLONE": + print_str += "clone(" + print_str += datum.dpstr(more) + print_str += ")" + else: + print_str += datum.dpstr(more)

return print_str

def parse(self, actstr): + totallen = len(actstr) while len(actstr) != 0: parsed = False + parencount = 0 if actstr.startswith("drop"): # If no reason is provided, the implicit drop is used (i.e no # action). If some reason is given, an explicit action is used. - actstr, reason = parse_extract_field( - actstr, - "drop(", - "([0-9]+)", - lambda x: int(x, 0), - False, - None, - ) + reason = None + if actstr.startswith("drop("): + parencount += 1 + + actstr, reason = parse_extract_field( + actstr, + "drop(", + "([0-9]+)", + lambda x: int(x, 0), + False, + None, + ) + if reason is not None: self["attrs"].append(["OVS_ACTION_ATTR_DROP", reason]) parsed = True else: - return + actstr = actstr[len("drop"): ] + return (totallen - len(actstr))

elif parse_starts_block(actstr, "^(\d+)", False, True): actstr, output = parse_extract_field( @@ -504,6 +517,7 @@ class ovsactions(nla): False, 0, ) + parencount += 1 self["attrs"].append(["OVS_ACTION_ATTR_RECIRC", recircid]) parsed = True

@@ -516,12 +530,22 @@ class ovsactions(nla):

for flat_act in parse_flat_map: if parse_starts_block(actstr, flat_act[0], False): - actstr += len(flat_act[0]) + actstr = actstr[len(flat_act[0]):] self["attrs"].append([flat_act[1]]) actstr = actstr[strspn(actstr, ", ") :] parsed = True

- if parse_starts_block(actstr, "ct(", False): + if parse_starts_block(actstr, "clone(", False): + parencount += 1 + subacts = ovsactions() + actstr = actstr[len("clone("):] + parsedLen = subacts.parse(actstr) + lst = [] + self["attrs"].append(("OVS_ACTION_ATTR_CLONE", subacts)) + actstr = actstr[parsedLen:] + parsed = True + elif parse_starts_block(actstr, "ct(", False): + parencount += 1 actstr = actstr[len("ct(") :] ctact = ovsactions.ctact()

@@ -553,6 +577,7 @@ class ovsactions(nla): natact = ovsactions.ctact.natattr()

if actstr.startswith("("): + parencount += 1 t = None actstr = actstr[1:] if actstr.startswith("src"): @@ -607,15 +632,29 @@ class ovsactions(nla): actstr = actstr[strspn(actstr, ", ") :]

ctact["attrs"].append(["OVS_CT_ATTR_NAT", natact]) - actstr = actstr[strspn(actstr, ",) ") :] + actstr = actstr[strspn(actstr, ", ") :]

self["attrs"].append(["OVS_ACTION_ATTR_CT", ctact]) parsed = True

- actstr = actstr[strspn(actstr, "), ") :] + actstr = actstr[strspn(actstr, ", ") :] + while parencount > 0: + parencount -= 1 + actstr = actstr[strspn(actstr, " "):] + if len(actstr) and actstr[0] != ")": + raise ValueError("Action str: '%s' unbalanced" % actstr) + actstr = actstr[1:] + + if len(actstr) and actstr[0] == ")": + return (totallen - len(actstr)) + + actstr = actstr[strspn(actstr, ", ") :] + if not parsed: raise ValueError("Action str: '%s' not supported" % actstr)

+ return (totallen - len(actstr)) +

class ovskey(nla): nla_flags = NLA_F_NESTED @@ -2111,6 +2150,8 @@ def main(argv): ovsflow = OvsFlow() ndb = NDB()

+ sys.setrecursionlimit(100000) + if hasattr(args, "showdp"): found = False for iface in ndb.interfaces:

From: Hans de Goede hdegoede@redhat.com

[ Upstream commit 551539a8606e28cb2a130f8ef3e9834235b456c4 ]

The DMI strings used for the LattePanda board DMI quirks are very generic.

Using the dmidecode database from https://linux-hardware.org/ shows that the chosen DMI strings also match the following 2 laptops which also have a rt5645 codec:

Insignia NS-P11W7100 https://linux-hardware.org/?computer=E092FFF8BA04 Insignia NS-P10W8100 https://linux-hardware.org/?computer=AFB6C0BF7934

All 4 hw revisions of the LattePanda board have "S70CR" in their BIOS version DMI strings:

DF-BI-7-S70CR100-* DF-BI-7-S70CR110-* DF-BI-7-S70CR200-* LP-BS-7-S70CR700-*

See e.g. https://linux-hardware.org/?computer=D98250A817C0

Add a partial (non exact) DMI match on this string to make the LattePanda board DMI match more precise to avoid false-positive matches.

Signed-off-by: Hans de Goede hdegoede@redhat.com Link: https://msgid.link/r/20240211212736.179605-1-hdegoede@redhat.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/codecs/rt5645.c | 10 ++++++++++ 1 file changed, 10 insertions(+)

diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c index ea08b7cfc31da..e0da151508309 100644 --- a/sound/soc/codecs/rt5645.c +++ b/sound/soc/codecs/rt5645.c @@ -3829,6 +3829,16 @@ static const struct dmi_system_id dmi_platform_data[] = { DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), DMI_EXACT_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"), DMI_EXACT_MATCH(DMI_BOARD_VERSION, "Default string"), + /* + * Above strings are too generic, LattePanda BIOS versions for + * all 4 hw revisions are: + * DF-BI-7-S70CR100-* + * DF-BI-7-S70CR110-* + * DF-BI-7-S70CR200-* + * LP-BS-7-S70CR700-* + * Do a partial match for S70CR to avoid false positive matches. + */ + DMI_MATCH(DMI_BIOS_VERSION, "S70CR"), }, .driver_data = (void *)&lattepanda_board_platform_data, },

From: Mark Brown broonie@kernel.org

[ Upstream commit 2f0dbb24f78a333433a2b875c0b76bf55c119cd4 ]

During the cache sync test we verify that values we expect to have been written only to the cache do not appear in the hardware. This works most of the time but since we randomly generate both the original and new values there is a low probability that these values may actually be the same. Wrap get_random_bytes() to ensure that the values are different, there are other tests which should have similar verification that we actually changed something.

While we're at it refactor the test to use three changed values rather than attempting to use one of them twice, that just complicates checking that our new values are actually new.

We use random generation to try to avoid data dependencies in the tests.

Reported-by: Guenter Roeck linux@roeck-us.net Reviewed-by: Guenter Roeck linux@roeck-us.net Tested-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Mark Brown broonie@kernel.org Link: https://msgid.link/r/20240211-regmap-kunit-random-change-v3-1-e387a9ea4468@k... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/base/regmap/regmap-kunit.c | 54 +++++++++++++++++++++--------- 1 file changed, 38 insertions(+), 16 deletions(-)

diff --git a/drivers/base/regmap/regmap-kunit.c b/drivers/base/regmap/regmap-kunit.c index 264d29b3fced0..5f1e914646cd9 100644 --- a/drivers/base/regmap/regmap-kunit.c +++ b/drivers/base/regmap/regmap-kunit.c @@ -9,6 +9,23 @@

#define BLOCK_TEST_SIZE 12

+static void get_changed_bytes(void *orig, void *new, size_t size) +{ + char *o = orig; + char *n = new; + int i; + + get_random_bytes(new, size); + + /* + * This could be nicer and more efficient but we shouldn't + * super care. + */ + for (i = 0; i < size; i++) + while (n[i] == o[i]) + get_random_bytes(&n[i], 1); +} + static const struct regmap_config test_regmap_config = { .max_register = BLOCK_TEST_SIZE, .reg_stride = 1, @@ -1131,7 +1148,7 @@ static void raw_sync(struct kunit *test) struct regmap *map; struct regmap_config config; struct regmap_ram_data *data; - u16 val[2]; + u16 val[3]; u16 *hw_buf; unsigned int rval; int i; @@ -1145,17 +1162,13 @@ static void raw_sync(struct kunit *test)

hw_buf = (u16 *)data->vals;

- get_random_bytes(&val, sizeof(val)); + get_changed_bytes(&hw_buf[2], &val[0], sizeof(val));

/* Do a regular write and a raw write in cache only mode */ regcache_cache_only(map, true); - KUNIT_EXPECT_EQ(test, 0, regmap_raw_write(map, 2, val, sizeof(val))); - if (config.val_format_endian == REGMAP_ENDIAN_BIG) - KUNIT_EXPECT_EQ(test, 0, regmap_write(map, 6, - be16_to_cpu(val[0]))); - else - KUNIT_EXPECT_EQ(test, 0, regmap_write(map, 6, - le16_to_cpu(val[0]))); + KUNIT_EXPECT_EQ(test, 0, regmap_raw_write(map, 2, val, + sizeof(u16) * 2)); + KUNIT_EXPECT_EQ(test, 0, regmap_write(map, 4, val[2]));

/* We should read back the new values, and defaults for the rest */ for (i = 0; i < config.max_register + 1; i++) { @@ -1164,24 +1177,34 @@ static void raw_sync(struct kunit *test) switch (i) { case 2: case 3: - case 6: if (config.val_format_endian == REGMAP_ENDIAN_BIG) { KUNIT_EXPECT_EQ(test, rval, - be16_to_cpu(val[i % 2])); + be16_to_cpu(val[i - 2])); } else { KUNIT_EXPECT_EQ(test, rval, - le16_to_cpu(val[i % 2])); + le16_to_cpu(val[i - 2])); } break; + case 4: + KUNIT_EXPECT_EQ(test, rval, val[i - 2]); + break; default: KUNIT_EXPECT_EQ(test, config.reg_defaults[i].def, rval); break; } } + + /* + * The value written via _write() was translated by the core, + * translate the original copy for comparison purposes. + */ + if (config.val_format_endian == REGMAP_ENDIAN_BIG) + val[2] = cpu_to_be16(val[2]); + else + val[2] = cpu_to_le16(val[2]); /* The values should not appear in the "hardware" */ - KUNIT_EXPECT_MEMNEQ(test, &hw_buf[2], val, sizeof(val)); - KUNIT_EXPECT_MEMNEQ(test, &hw_buf[6], val, sizeof(u16)); + KUNIT_EXPECT_MEMNEQ(test, &hw_buf[2], &val[0], sizeof(val));

for (i = 0; i < config.max_register + 1; i++) data->written[i] = false; @@ -1192,8 +1215,7 @@ static void raw_sync(struct kunit *test) KUNIT_EXPECT_EQ(test, 0, regcache_sync(map));

/* The values should now appear in the "hardware" */ - KUNIT_EXPECT_MEMEQ(test, &hw_buf[2], val, sizeof(val)); - KUNIT_EXPECT_MEMEQ(test, &hw_buf[6], val, sizeof(u16)); + KUNIT_EXPECT_MEMEQ(test, &hw_buf[2], &val[0], sizeof(val));

regmap_exit(map); }

From: Kunwu Chan chentao@kylinos.cn

[ Upstream commit 3693bb4465e6e32a204a5b86d3ec7e6b9f7e67c2 ]

kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure. Ensure the allocation was successful by checking the pointer validity.

Signed-off-by: Kunwu Chan chentao@kylinos.cn Reported-by: kernel test robot lkp@intel.com Closes: https://lore.kernel.org/oe-kbuild-all/202401161119.iof6BQsf-lkp@intel.com/ Suggested-by: Markus Elfring Markus.Elfring@web.de Reviewed-by: Juergen Gross jgross@suse.com Link: https://lore.kernel.org/r/20240119094948.275390-1-chentao@kylinos.cn Signed-off-by: Juergen Gross jgross@suse.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/x86/xen/smp.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)

diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c index 4b0d6fff88de5..1fb9a1644d944 100644 --- a/arch/x86/xen/smp.c +++ b/arch/x86/xen/smp.c @@ -65,6 +65,8 @@ int xen_smp_intr_init(unsigned int cpu) char *resched_name, *callfunc_name, *debug_name;

resched_name = kasprintf(GFP_KERNEL, "resched%d", cpu); + if (!resched_name) + goto fail_mem; per_cpu(xen_resched_irq, cpu).name = resched_name; rc = bind_ipi_to_irqhandler(XEN_RESCHEDULE_VECTOR, cpu, @@ -77,6 +79,8 @@ int xen_smp_intr_init(unsigned int cpu) per_cpu(xen_resched_irq, cpu).irq = rc;

callfunc_name = kasprintf(GFP_KERNEL, "callfunc%d", cpu); + if (!callfunc_name) + goto fail_mem; per_cpu(xen_callfunc_irq, cpu).name = callfunc_name; rc = bind_ipi_to_irqhandler(XEN_CALL_FUNCTION_VECTOR, cpu, @@ -90,6 +94,9 @@ int xen_smp_intr_init(unsigned int cpu)

if (!xen_fifo_events) { debug_name = kasprintf(GFP_KERNEL, "debug%d", cpu); + if (!debug_name) + goto fail_mem; + per_cpu(xen_debug_irq, cpu).name = debug_name; rc = bind_virq_to_irqhandler(VIRQ_DEBUG, cpu, xen_debug_interrupt, @@ -101,6 +108,9 @@ int xen_smp_intr_init(unsigned int cpu) }

callfunc_name = kasprintf(GFP_KERNEL, "callfuncsingle%d", cpu); + if (!callfunc_name) + goto fail_mem; + per_cpu(xen_callfuncsingle_irq, cpu).name = callfunc_name; rc = bind_ipi_to_irqhandler(XEN_CALL_FUNCTION_SINGLE_VECTOR, cpu, @@ -114,6 +124,8 @@ int xen_smp_intr_init(unsigned int cpu)

return 0;

+ fail_mem: + rc = -ENOMEM; fail: xen_smp_intr_free(cpu); return rc;

From: Manuel Fombuena fombuena@outlook.com

[ Upstream commit 1741a8269e1c51fa08d4bfdf34667387a6eb10ec ]

Add support for the pointing stick (Accupoint) and 2 mouse buttons.

Present on some Toshiba/dynabook Portege X30 and X40 laptops.

It should close https://bugzilla.kernel.org/show_bug.cgi?id=205817

Signed-off-by: Manuel Fombuena fombuena@outlook.com Signed-off-by: Jiri Kosina jkosina@suse.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/hid/hid-multitouch.c | 4 ++++ 1 file changed, 4 insertions(+)

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index 5ec1f174127a3..3816fd06bc953 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -2153,6 +2153,10 @@ static const struct hid_device_id mt_devices[] = { HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, USB_VENDOR_ID_SYNAPTICS, 0xcd7e) },

+ { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, + HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, + USB_VENDOR_ID_SYNAPTICS, 0xcddc) }, + { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, USB_VENDOR_ID_SYNAPTICS, 0xce08) },

From: Andrew Ballance andrewjballance@gmail.com

[ Upstream commit dae4a0171e25884787da32823b3081b4c2acebb2 ]

With python 3.12, '#' results in this warning SyntaxWarning: invalid escape sequence '#'

Signed-off-by: Andrew Ballance andrewjballance@gmail.com Reviewed-by: Justin Stitt justinstitt@google.com Signed-off-by: Masahiro Yamada masahiroy@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- scripts/clang-tools/gen_compile_commands.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/clang-tools/gen_compile_commands.py b/scripts/clang-tools/gen_compile_commands.py index a84cc5737c2c6..bc005cac19441 100755 --- a/scripts/clang-tools/gen_compile_commands.py +++ b/scripts/clang-tools/gen_compile_commands.py @@ -170,7 +170,7 @@ def process_line(root_directory, command_prefix, file_path): # escape the pound sign '#', either as '#' or '$(pound)' (depending on the # kernel version). The compile_commands.json file is not interepreted # by Make, so this code replaces the escaped version with '#'. - prefix = command_prefix.replace('#', '#').replace('$(pound)', '#') + prefix = command_prefix.replace(r'#', '#').replace('$(pound)', '#')

# Use os.path.abspath() to normalize the path resolving '.' and '..' . abs_path = os.path.abspath(os.path.join(root_directory, file_path))

From: Geert Uytterhoeven geert+renesas@glider.be

[ Upstream commit 6dd9a236042e305d7b69ee92db7347bf5943e7d3 ]

The symbol's prompt should be a one-line description, instead of just duplicating the symbol name.

Signed-off-by: Geert Uytterhoeven geert+renesas@glider.be Signed-off-by: Conor Dooley conor.dooley@microchip.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/soc/microchip/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soc/microchip/Kconfig b/drivers/soc/microchip/Kconfig index eb656b33156ba..f19e74d342aa2 100644 --- a/drivers/soc/microchip/Kconfig +++ b/drivers/soc/microchip/Kconfig @@ -1,5 +1,5 @@ config POLARFIRE_SOC_SYS_CTRL - tristate "POLARFIRE_SOC_SYS_CTRL" + tristate "Microchip PolarFire SoC (MPFS) system controller support" depends on POLARFIRE_SOC_MAILBOX help This driver adds support for the PolarFire SoC (MPFS) system controller.

From: Leon Romanovsky leonro@nvidia.com

[ Upstream commit 4d5e86a56615cc387d21c629f9af8fb0e958d350 ]

------------[ cut here ]------------ memcpy: detected field-spanning write (size 56) of single field "eseg->inline_hdr.start" at /var/lib/dkms/mlnx-ofed-kernel/5.8/build/drivers/infiniband/hw/mlx5/wr.c:131 (size 2) WARNING: CPU: 0 PID: 293779 at /var/lib/dkms/mlnx-ofed-kernel/5.8/build/drivers/infiniband/hw/mlx5/wr.c:131 mlx5_ib_post_send+0x191b/0x1a60 [mlx5_ib] Modules linked in: 8021q garp mrp stp llc rdma_ucm(OE) rdma_cm(OE) iw_cm(OE) ib_ipoib(OE) ib_cm(OE) ib_umad(OE) mlx5_ib(OE) ib_uverbs(OE) ib_core(OE) mlx5_core(OE) pci_hyperv_intf mlxdevm(OE) mlx_compat(OE) tls mlxfw(OE) psample nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables libcrc32c nfnetlink mst_pciconf(OE) knem(OE) vfio_pci vfio_pci_core vfio_iommu_type1 vfio iommufd irqbypass cuse nfsv3 nfs fscache netfs xfrm_user xfrm_algo ipmi_devintf ipmi_msghandler binfmt_misc crct10dif_pclmul crc32_pclmul polyval_clmulni polyval_generic ghash_clmulni_intel sha512_ssse3 snd_pcsp aesni_intel crypto_simd cryptd snd_pcm snd_timer joydev snd soundcore input_leds serio_raw evbug nfsd auth_rpcgss nfs_acl lockd grace sch_fq_codel sunrpc drm efi_pstore ip_tables x_tables autofs4 psmouse virtio_net net_failover failover floppy [last unloaded: mlx_compat(OE)] CPU: 0 PID: 293779 Comm: ssh Tainted: G OE 6.2.0-32-generic #32~22.04.1-Ubuntu Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011 RIP: 0010:mlx5_ib_post_send+0x191b/0x1a60 [mlx5_ib] Code: 0c 01 00 a8 01 75 25 48 8b 75 a0 b9 02 00 00 00 48 c7 c2 10 5b fd c0 48 c7 c7 80 5b fd c0 c6 05 57 0c 03 00 01 e8 95 4d 93 da <0f> 0b 44 8b 4d b0 4c 8b 45 c8 48 8b 4d c0 e9 49 fb ff ff 41 0f b7 RSP: 0018:ffffb5b48478b570 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffb5b48478b628 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffb5b48478b5e8 R13: ffff963a3c609b5e R14: ffff9639c3fbd800 R15: ffffb5b480475a80 FS: 00007fc03b444c80(0000) GS:ffff963a3dc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556f46bdf000 CR3: 0000000006ac6003 CR4: 00000000003706f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> ? show_regs+0x72/0x90 ? mlx5_ib_post_send+0x191b/0x1a60 [mlx5_ib] ? __warn+0x8d/0x160 ? mlx5_ib_post_send+0x191b/0x1a60 [mlx5_ib] ? report_bug+0x1bb/0x1d0 ? handle_bug+0x46/0x90 ? exc_invalid_op+0x19/0x80 ? asm_exc_invalid_op+0x1b/0x20 ? mlx5_ib_post_send+0x191b/0x1a60 [mlx5_ib] mlx5_ib_post_send_nodrain+0xb/0x20 [mlx5_ib] ipoib_send+0x2ec/0x770 [ib_ipoib] ipoib_start_xmit+0x5a0/0x770 [ib_ipoib] dev_hard_start_xmit+0x8e/0x1e0 ? validate_xmit_skb_list+0x4d/0x80 sch_direct_xmit+0x116/0x3a0 __dev_xmit_skb+0x1fd/0x580 __dev_queue_xmit+0x284/0x6b0 ? _raw_spin_unlock_irq+0xe/0x50 ? __flush_work.isra.0+0x20d/0x370 ? push_pseudo_header+0x17/0x40 [ib_ipoib] neigh_connected_output+0xcd/0x110 ip_finish_output2+0x179/0x480 ? __smp_call_single_queue+0x61/0xa0 __ip_finish_output+0xc3/0x190 ip_finish_output+0x2e/0xf0 ip_output+0x78/0x110 ? __pfx_ip_finish_output+0x10/0x10 ip_local_out+0x64/0x70 __ip_queue_xmit+0x18a/0x460 ip_queue_xmit+0x15/0x30 __tcp_transmit_skb+0x914/0x9c0 tcp_write_xmit+0x334/0x8d0 tcp_push_one+0x3c/0x60 tcp_sendmsg_locked+0x2e1/0xac0 tcp_sendmsg+0x2d/0x50 inet_sendmsg+0x43/0x90 sock_sendmsg+0x68/0x80 sock_write_iter+0x93/0x100 vfs_write+0x326/0x3c0 ksys_write+0xbd/0xf0 ? do_syscall_64+0x69/0x90 __x64_sys_write+0x19/0x30 do_syscall_64+0x59/0x90 ? do_user_addr_fault+0x1d0/0x640 ? exit_to_user_mode_prepare+0x3b/0xd0 ? irqentry_exit_to_user_mode+0x9/0x20 ? irqentry_exit+0x43/0x50 ? exc_page_fault+0x92/0x1b0 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fc03ad14a37 Code: 10 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 RSP: 002b:00007ffdf8697fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000008024 RCX: 00007fc03ad14a37 RDX: 0000000000008024 RSI: 0000556f46bd8270 RDI: 0000000000000003 RBP: 0000556f46bb1800 R08: 0000000000007fe3 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 0000556f46bc66b0 R14: 000000000000000a R15: 0000556f46bb2f50 </TASK> ---[ end trace 0000000000000000 ]---

Link: https://lore.kernel.org/r/8228ad34bd1a25047586270f7b1fb4ddcd046282.170643393... Signed-off-by: Leon Romanovsky leonro@nvidia.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/hw/mlx5/wr.c | 2 +- include/linux/mlx5/qp.h | 5 ++++- 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/wr.c b/drivers/infiniband/hw/mlx5/wr.c index df1d1b0a3ef72..9947feb7fb8a0 100644 --- a/drivers/infiniband/hw/mlx5/wr.c +++ b/drivers/infiniband/hw/mlx5/wr.c @@ -78,7 +78,7 @@ static void set_eth_seg(const struct ib_send_wr *wr, struct mlx5_ib_qp *qp, */ copysz = min_t(u64, *cur_edge - (void *)eseg->inline_hdr.start, left); - memcpy(eseg->inline_hdr.start, pdata, copysz); + memcpy(eseg->inline_hdr.data, pdata, copysz); stride = ALIGN(sizeof(struct mlx5_wqe_eth_seg) - sizeof(eseg->inline_hdr.start) + copysz, 16); *size += stride / 16; diff --git a/include/linux/mlx5/qp.h b/include/linux/mlx5/qp.h index bd53cf4be7bdc..f0e55bf3ec8b5 100644 --- a/include/linux/mlx5/qp.h +++ b/include/linux/mlx5/qp.h @@ -269,7 +269,10 @@ struct mlx5_wqe_eth_seg { union { struct { __be16 sz; - u8 start[2]; + union { + u8 start[2]; + DECLARE_FLEX_ARRAY(u8, data); + }; } inline_hdr; struct { __be16 type;

From: Uwe Kleine-König u.kleine-koenig@pengutronix.de

[ Upstream commit f98643d8daf3443e3b414a82d0cb3d745f8c8bbc ]

The binding doesn't define interrupts and adding such a definition was refused because it's unclear how they should ever be used and the relevant registers are outside the PWM range. So drop them fixing several dtbs_check warnings like:

arch/arm/boot/dts/rockchip/rv1108-elgin-r1.dtb: pwm@10280030: 'interrupts' does not match any of the regexes: 'pinctrl-[0-9]+' from schema $id: http://devicetree.org/schemas/pwm/pwm-rockchip.yaml#

Signed-off-by: Uwe Kleine-König u.kleine-koenig@pengutronix.de Link: https://lore.kernel.org/r/20240129113205.2453029-2-u.kleine-koenig@pengutron... Signed-off-by: Heiko Stuebner heiko@sntech.de Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/boot/dts/rockchip/rv1108.dtsi | 8 -------- 1 file changed, 8 deletions(-)

diff --git a/arch/arm/boot/dts/rockchip/rv1108.dtsi b/arch/arm/boot/dts/rockchip/rv1108.dtsi index abf3006f0a842..f3291f3bbc6fd 100644 --- a/arch/arm/boot/dts/rockchip/rv1108.dtsi +++ b/arch/arm/boot/dts/rockchip/rv1108.dtsi @@ -196,7 +196,6 @@ spi: spi@10270000 { pwm4: pwm@10280000 { compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm"; reg = <0x10280000 0x10>; - interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>; clocks = <&cru SCLK_PWM>, <&cru PCLK_PWM>; clock-names = "pwm", "pclk"; pinctrl-names = "default"; @@ -208,7 +207,6 @@ pwm4: pwm@10280000 { pwm5: pwm@10280010 { compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm"; reg = <0x10280010 0x10>; - interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>; clocks = <&cru SCLK_PWM>, <&cru PCLK_PWM>; clock-names = "pwm", "pclk"; pinctrl-names = "default"; @@ -220,7 +218,6 @@ pwm5: pwm@10280010 { pwm6: pwm@10280020 { compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm"; reg = <0x10280020 0x10>; - interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>; clocks = <&cru SCLK_PWM>, <&cru PCLK_PWM>; clock-names = "pwm", "pclk"; pinctrl-names = "default"; @@ -232,7 +229,6 @@ pwm6: pwm@10280020 { pwm7: pwm@10280030 { compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm"; reg = <0x10280030 0x10>; - interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>; clocks = <&cru SCLK_PWM>, <&cru PCLK_PWM>; clock-names = "pwm", "pclk"; pinctrl-names = "default"; @@ -386,7 +382,6 @@ i2c0: i2c@20000000 { pwm0: pwm@20040000 { compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm"; reg = <0x20040000 0x10>; - interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>; clocks = <&cru SCLK_PWM0_PMU>, <&cru PCLK_PWM0_PMU>; clock-names = "pwm", "pclk"; pinctrl-names = "default"; @@ -398,7 +393,6 @@ pwm0: pwm@20040000 { pwm1: pwm@20040010 { compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm"; reg = <0x20040010 0x10>; - interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>; clocks = <&cru SCLK_PWM0_PMU>, <&cru PCLK_PWM0_PMU>; clock-names = "pwm", "pclk"; pinctrl-names = "default"; @@ -410,7 +404,6 @@ pwm1: pwm@20040010 { pwm2: pwm@20040020 { compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm"; reg = <0x20040020 0x10>; - interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>; clocks = <&cru SCLK_PWM0_PMU>, <&cru PCLK_PWM0_PMU>; clock-names = "pwm", "pclk"; pinctrl-names = "default"; @@ -422,7 +415,6 @@ pwm2: pwm@20040020 { pwm3: pwm@20040030 { compatible = "rockchip,rv1108-pwm", "rockchip,rk3288-pwm"; reg = <0x20040030 0x10>; - interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>; clocks = <&cru SCLK_PWM0_PMU>, <&cru PCLK_PWM0_PMU>; clock-names = "pwm", "pclk"; pinctrl-names = "default";

From: Hou Tao houtao1@huawei.com

[ Upstream commit ee0e39a63b78849f8abbef268b13e4838569f646 ]

Move is_vsyscall_vaddr() into asm/vsyscall.h to make it available for copy_from_kernel_nofault_allowed() in arch/x86/mm/maccess.c.

Reviewed-by: Sohil Mehta sohil.mehta@intel.com Signed-off-by: Hou Tao houtao1@huawei.com Link: https://lore.kernel.org/r/20240202103935.3154011-2-houtao@huaweicloud.com Signed-off-by: Alexei Starovoitov ast@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/x86/include/asm/vsyscall.h | 10 ++++++++++ arch/x86/mm/fault.c | 9 --------- 2 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/arch/x86/include/asm/vsyscall.h b/arch/x86/include/asm/vsyscall.h index ab60a71a8dcb9..472f0263dbc61 100644 --- a/arch/x86/include/asm/vsyscall.h +++ b/arch/x86/include/asm/vsyscall.h @@ -4,6 +4,7 @@

#include <linux/seqlock.h> #include <uapi/asm/vsyscall.h> +#include <asm/page_types.h>

#ifdef CONFIG_X86_VSYSCALL_EMULATION extern void map_vsyscall(void); @@ -24,4 +25,13 @@ static inline bool emulate_vsyscall(unsigned long error_code, } #endif

+/* + * The (legacy) vsyscall page is the long page in the kernel portion + * of the address space that has user-accessible permissions. + */ +static inline bool is_vsyscall_vaddr(unsigned long vaddr) +{ + return unlikely((vaddr & PAGE_MASK) == VSYSCALL_ADDR); +} + #endif /* _ASM_X86_VSYSCALL_H */ diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index ab778eac19520..a9d69ec994b75 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -798,15 +798,6 @@ show_signal_msg(struct pt_regs *regs, unsigned long error_code, show_opcodes(regs, loglvl); }

-/* - * The (legacy) vsyscall page is the long page in the kernel portion - * of the address space that has user-accessible permissions. - */ -static bool is_vsyscall_vaddr(unsigned long vaddr) -{ - return unlikely((vaddr & PAGE_MASK) == VSYSCALL_ADDR); -} - static void __bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code, unsigned long address, u32 pkey, int si_code)

From: Alexander Gordeev agordeev@linux.ibm.com

[ Upstream commit b4ea9b6a18ebf7f9f3a7a60f82e925186978cfcf ]

iucv_path_table is a dynamically allocated array of pointers to struct iucv_path items. Yet, its size is calculated as if it was an array of struct iucv_path items.

Signed-off-by: Alexander Gordeev agordeev@linux.ibm.com Reviewed-by: Alexandra Winter wintera@linux.ibm.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- net/iucv/iucv.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c index fc3fddeb6f36d..f66b5f74cd83a 100644 --- a/net/iucv/iucv.c +++ b/net/iucv/iucv.c @@ -156,7 +156,7 @@ static char iucv_error_pathid[16] = "INVALID PATHID"; static LIST_HEAD(iucv_handler_list);

/* - * iucv_path_table: an array of iucv_path structures. + * iucv_path_table: array of pointers to iucv_path structures. */ static struct iucv_path **iucv_path_table; static unsigned long iucv_max_pathid; @@ -544,7 +544,7 @@ static int iucv_enable(void)

cpus_read_lock(); rc = -ENOMEM; - alloc_size = iucv_max_pathid * sizeof(struct iucv_path); + alloc_size = iucv_max_pathid * sizeof(*iucv_path_table); iucv_path_table = kzalloc(alloc_size, GFP_KERNEL); if (!iucv_path_table) goto out;

From: Greg Joyce gjoyce@linux.ibm.com

[ Upstream commit 5429c8de56f6b2bd8f537df3a1e04e67b9c04282 ]

The SED Opal response parsing function response_parse() does not handle the case of an empty atom in the response. This causes the entry count to be too high and the response fails to be parsed. Recognizing, but ignoring, empty atoms allows response handling to succeed.

Signed-off-by: Greg Joyce gjoyce@linux.ibm.com Link: https://lore.kernel.org/r/20240216210417.3526064-2-gjoyce@linux.ibm.com Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin sashal@kernel.org --- block/opal_proto.h | 1 + block/sed-opal.c | 6 +++++- 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/block/opal_proto.h b/block/opal_proto.h index dec7ce3a3edb7..d247a457bf6e3 100644 --- a/block/opal_proto.h +++ b/block/opal_proto.h @@ -71,6 +71,7 @@ enum opal_response_token { #define SHORT_ATOM_BYTE 0xBF #define MEDIUM_ATOM_BYTE 0xDF #define LONG_ATOM_BYTE 0xE3 +#define EMPTY_ATOM_BYTE 0xFF

#define OPAL_INVAL_PARAM 12 #define OPAL_MANUFACTURED_INACTIVE 0x08 diff --git a/block/sed-opal.c b/block/sed-opal.c index 04f38a3f5d959..e27109be77690 100644 --- a/block/sed-opal.c +++ b/block/sed-opal.c @@ -1055,16 +1055,20 @@ static int response_parse(const u8 *buf, size_t length, token_length = response_parse_medium(iter, pos); else if (pos[0] <= LONG_ATOM_BYTE) /* long atom */ token_length = response_parse_long(iter, pos); + else if (pos[0] == EMPTY_ATOM_BYTE) /* empty atom */ + token_length = 1; else /* TOKEN */ token_length = response_parse_token(iter, pos);

if (token_length < 0) return token_length;

+ if (pos[0] != EMPTY_ATOM_BYTE) + num_entries++; + pos += token_length; total -= token_length; iter++; - num_entries++; }

resp->num = num_entries;

From: Alison Schofield alison.schofield@intel.com

[ Upstream commit cb66b1d60c283bb340a2fc19deff7de8acea74b1 ]

Autodiscovered regions can fail to assemble if they are not discovered in HPA decode order. The user will see failure messages like:

[] cxl region0: endpoint5: HPA order violation region1 [] cxl region0: endpoint5: failed to allocate region reference

The check that is causing the failure helps the CXL driver enforce a CXL spec mandate that decoders be committed in HPA order. The check is needless for autodiscovered regions since their decoders are already programmed. Trying to enforce order in the assembly of these regions is useless because they are assembled once all their member endpoints arrive, and there is no guarantee on the order in which endpoints are discovered during probe.

Keep the existing check, but for autodiscovered regions, allow the out of order assembly after a sanity check that the lesser numbered decoder has the lesser HPA starting address.

Signed-off-by: Alison Schofield alison.schofield@intel.com Tested-by: Wonjae Lee wj28.lee@samsung.com Link: https://lore.kernel.org/r/3dec69ee97524ab229a20c6739272c3000b18408.170673686... Signed-off-by: Dan Williams dan.j.williams@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/cxl/core/region.c | 48 +++++++++++++++++++++++++++++++-------- 1 file changed, 38 insertions(+), 10 deletions(-)

diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c index a3d82ef5599e8..e2a82ee4ff0cf 100644 --- a/drivers/cxl/core/region.c +++ b/drivers/cxl/core/region.c @@ -757,8 +757,31 @@ cxl_region_find_decoder(struct cxl_port *port, return to_cxl_decoder(dev); }

-static struct cxl_region_ref *alloc_region_ref(struct cxl_port *port, - struct cxl_region *cxlr) +static bool auto_order_ok(struct cxl_port *port, struct cxl_region *cxlr_iter, + struct cxl_decoder *cxld) +{ + struct cxl_region_ref *rr = cxl_rr_load(port, cxlr_iter); + struct cxl_decoder *cxld_iter = rr->decoder; + + /* + * Allow the out of order assembly of auto-discovered regions. + * Per CXL Spec 3.1 8.2.4.20.12 software must commit decoders + * in HPA order. Confirm that the decoder with the lesser HPA + * starting address has the lesser id. + */ + dev_dbg(&cxld->dev, "check for HPA violation %s:%d < %s:%d\n", + dev_name(&cxld->dev), cxld->id, + dev_name(&cxld_iter->dev), cxld_iter->id); + + if (cxld_iter->id > cxld->id) + return true; + + return false; +} + +static struct cxl_region_ref * +alloc_region_ref(struct cxl_port *port, struct cxl_region *cxlr, + struct cxl_endpoint_decoder *cxled) { struct cxl_region_params *p = &cxlr->params; struct cxl_region_ref *cxl_rr, *iter; @@ -768,16 +791,21 @@ static struct cxl_region_ref *alloc_region_ref(struct cxl_port *port, xa_for_each(&port->regions, index, iter) { struct cxl_region_params *ip = &iter->region->params;

- if (!ip->res) + if (!ip->res || ip->res->start < p->res->start) continue;

- if (ip->res->start > p->res->start) { - dev_dbg(&cxlr->dev, - "%s: HPA order violation %s:%pr vs %pr\n", - dev_name(&port->dev), - dev_name(&iter->region->dev), ip->res, p->res); - return ERR_PTR(-EBUSY); + if (test_bit(CXL_REGION_F_AUTO, &cxlr->flags)) { + struct cxl_decoder *cxld; + + cxld = cxl_region_find_decoder(port, cxled, cxlr); + if (auto_order_ok(port, iter->region, cxld)) + continue; } + dev_dbg(&cxlr->dev, "%s: HPA order violation %s:%pr vs %pr\n", + dev_name(&port->dev), + dev_name(&iter->region->dev), ip->res, p->res); + + return ERR_PTR(-EBUSY); }

cxl_rr = kzalloc(sizeof(*cxl_rr), GFP_KERNEL); @@ -954,7 +982,7 @@ static int cxl_port_attach_region(struct cxl_port *port, nr_targets_inc = true; } } else { - cxl_rr = alloc_region_ref(port, cxlr); + cxl_rr = alloc_region_ref(port, cxlr, cxled); if (IS_ERR(cxl_rr)) { dev_dbg(&cxlr->dev, "%s: failed to allocate region reference\n",

From: Hans de Goede hdegoede@redhat.com

[ Upstream commit 8215ca518164d35f10c0b5545c8bb80f538638b8 ]

The Acer B1 750 tablet used a Novatek NVT-ts touchscreen, not a Goodix touchscreen.

Rename acer_b1_750_goodix_gpios to acer_b1_750_nvt_ts_gpios to correctly reflect this.

Signed-off-by: Hans de Goede hdegoede@redhat.com Link: https://lore.kernel.org/r/20240216201721.239791-5-hdegoede@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/x86-android-tablets/other.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/x86/x86-android-tablets/other.c b/drivers/platform/x86/x86-android-tablets/other.c index e79549c6aae17..fe5f68fa7bca7 100644 --- a/drivers/platform/x86/x86-android-tablets/other.c +++ b/drivers/platform/x86/x86-android-tablets/other.c @@ -66,7 +66,7 @@ static const struct x86_i2c_client_info acer_b1_750_i2c_clients[] __initconst = }, };

-static struct gpiod_lookup_table acer_b1_750_goodix_gpios = { +static struct gpiod_lookup_table acer_b1_750_nvt_ts_gpios = { .dev_id = "i2c-NVT-ts", .table = { GPIO_LOOKUP("INT33FC:01", 26, "reset", GPIO_ACTIVE_LOW), @@ -75,7 +75,7 @@ static struct gpiod_lookup_table acer_b1_750_goodix_gpios = { };

static struct gpiod_lookup_table * const acer_b1_750_gpios[] = { - &acer_b1_750_goodix_gpios, + &acer_b1_750_nvt_ts_gpios, &int3496_reference_gpios, NULL };

From: Rob Herring robh@kernel.org

[ Upstream commit 96fd598e9c34cfa68402a4da3020c9236cfacf35 ]

The dtc interrupt_provider warning is off by default. Fix all the warnings so it can be enabled.

Signed-off-by: Rob Herring robh@kernel.org Reviewed-by: Andrew Jeffery andrew@codeconstruct.com.au Reviewed-by: Alexandre Torgue alexandre.torgue@foss.st.com Acked-by: Florian Fainelli florian.fainelli@broadcom.com #Broadcom Acked-by: Thierry Reding treding@nvidia.com Link: https://lore.kernel.org/r/20240213-arm-dt-cleanups-v1-2-f2dee1292525@kernel.... Signed-off-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/boot/dts/amazon/alpine.dtsi | 1 - arch/arm/boot/dts/aspeed/aspeed-g4.dtsi | 14 -------------- arch/arm/boot/dts/aspeed/aspeed-g5.dtsi | 15 +-------------- arch/arm/boot/dts/aspeed/aspeed-g6.dtsi | 18 ++---------------- arch/arm/boot/dts/broadcom/bcm-cygnus.dtsi | 3 +++ arch/arm/boot/dts/broadcom/bcm-hr2.dtsi | 1 + arch/arm/boot/dts/broadcom/bcm-nsp.dtsi | 2 ++ arch/arm/boot/dts/marvell/kirkwood-l-50.dts | 2 ++ arch/arm/boot/dts/nuvoton/nuvoton-wpcm450.dtsi | 2 ++ .../boot/dts/nvidia/tegra30-apalis-v1.1.dtsi | 1 - arch/arm/boot/dts/nvidia/tegra30-apalis.dtsi | 1 - arch/arm/boot/dts/nvidia/tegra30-colibri.dtsi | 1 - arch/arm/boot/dts/nxp/imx/imx6q-b850v3.dts | 3 --- arch/arm/boot/dts/nxp/imx/imx6q-bx50v3.dtsi | 2 +- arch/arm/boot/dts/nxp/imx/imx6qdl-apalis.dtsi | 1 - arch/arm/boot/dts/nxp/imx/imx6qdl-colibri.dtsi | 1 - arch/arm/boot/dts/nxp/imx/imx6qdl-emcon.dtsi | 1 - .../dts/nxp/imx/imx6qdl-phytec-pfla02.dtsi | 1 + .../nxp/imx/imx6qdl-phytec-phycore-som.dtsi | 1 + arch/arm/boot/dts/nxp/imx/imx7d-pico-dwarf.dts | 1 + .../boot/dts/nxp/vf/vf610-zii-dev-rev-b.dts | 1 + arch/arm/boot/dts/st/stm32429i-eval.dts | 1 - arch/arm/boot/dts/st/stm32mp157c-dk2.dts | 1 - .../boot/dts/ti/omap/am5729-beagleboneai.dts | 1 - 24 files changed, 18 insertions(+), 58 deletions(-)

diff --git a/arch/arm/boot/dts/amazon/alpine.dtsi b/arch/arm/boot/dts/amazon/alpine.dtsi index ff68dfb4eb787..90bd12feac010 100644 --- a/arch/arm/boot/dts/amazon/alpine.dtsi +++ b/arch/arm/boot/dts/amazon/alpine.dtsi @@ -167,7 +167,6 @@ pcie@fbc00000 { msix: msix@fbe00000 { compatible = "al,alpine-msix"; reg = <0x0 0xfbe00000 0x0 0x100000>; - interrupt-controller; msi-controller; al,msi-base-spi = <96>; al,msi-num-spis = <64>; diff --git a/arch/arm/boot/dts/aspeed/aspeed-g4.dtsi b/arch/arm/boot/dts/aspeed/aspeed-g4.dtsi index 530491ae5eb26..857cb26ed6d7e 100644 --- a/arch/arm/boot/dts/aspeed/aspeed-g4.dtsi +++ b/arch/arm/boot/dts/aspeed/aspeed-g4.dtsi @@ -466,7 +466,6 @@ i2c_ic: interrupt-controller@0 { i2c0: i2c-bus@40 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x40 0x40>; compatible = "aspeed,ast2400-i2c-bus"; @@ -482,7 +481,6 @@ i2c0: i2c-bus@40 { i2c1: i2c-bus@80 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x80 0x40>; compatible = "aspeed,ast2400-i2c-bus"; @@ -498,7 +496,6 @@ i2c1: i2c-bus@80 { i2c2: i2c-bus@c0 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0xc0 0x40>; compatible = "aspeed,ast2400-i2c-bus"; @@ -515,7 +512,6 @@ i2c2: i2c-bus@c0 { i2c3: i2c-bus@100 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x100 0x40>; compatible = "aspeed,ast2400-i2c-bus"; @@ -532,7 +528,6 @@ i2c3: i2c-bus@100 { i2c4: i2c-bus@140 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x140 0x40>; compatible = "aspeed,ast2400-i2c-bus"; @@ -549,7 +544,6 @@ i2c4: i2c-bus@140 { i2c5: i2c-bus@180 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x180 0x40>; compatible = "aspeed,ast2400-i2c-bus"; @@ -566,7 +560,6 @@ i2c5: i2c-bus@180 { i2c6: i2c-bus@1c0 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x1c0 0x40>; compatible = "aspeed,ast2400-i2c-bus"; @@ -583,7 +576,6 @@ i2c6: i2c-bus@1c0 { i2c7: i2c-bus@300 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x300 0x40>; compatible = "aspeed,ast2400-i2c-bus"; @@ -600,7 +592,6 @@ i2c7: i2c-bus@300 { i2c8: i2c-bus@340 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x340 0x40>; compatible = "aspeed,ast2400-i2c-bus"; @@ -617,7 +608,6 @@ i2c8: i2c-bus@340 { i2c9: i2c-bus@380 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x380 0x40>; compatible = "aspeed,ast2400-i2c-bus"; @@ -634,7 +624,6 @@ i2c9: i2c-bus@380 { i2c10: i2c-bus@3c0 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x3c0 0x40>; compatible = "aspeed,ast2400-i2c-bus"; @@ -651,7 +640,6 @@ i2c10: i2c-bus@3c0 { i2c11: i2c-bus@400 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x400 0x40>; compatible = "aspeed,ast2400-i2c-bus"; @@ -668,7 +656,6 @@ i2c11: i2c-bus@400 { i2c12: i2c-bus@440 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x440 0x40>; compatible = "aspeed,ast2400-i2c-bus"; @@ -685,7 +672,6 @@ i2c12: i2c-bus@440 { i2c13: i2c-bus@480 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x480 0x40>; compatible = "aspeed,ast2400-i2c-bus"; diff --git a/arch/arm/boot/dts/aspeed/aspeed-g5.dtsi b/arch/arm/boot/dts/aspeed/aspeed-g5.dtsi index 04f98d1dbb97c..e6f3cf3c721e5 100644 --- a/arch/arm/boot/dts/aspeed/aspeed-g5.dtsi +++ b/arch/arm/boot/dts/aspeed/aspeed-g5.dtsi @@ -363,6 +363,7 @@ sgpio: sgpio@1e780200 { interrupts = <40>; reg = <0x1e780200 0x0100>; clocks = <&syscon ASPEED_CLK_APB>; + #interrupt-cells = <2>; interrupt-controller; bus-frequency = <12000000>; pinctrl-names = "default"; @@ -594,7 +595,6 @@ i2c_ic: interrupt-controller@0 { i2c0: i2c-bus@40 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x40 0x40>; compatible = "aspeed,ast2500-i2c-bus"; @@ -610,7 +610,6 @@ i2c0: i2c-bus@40 { i2c1: i2c-bus@80 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x80 0x40>; compatible = "aspeed,ast2500-i2c-bus"; @@ -626,7 +625,6 @@ i2c1: i2c-bus@80 { i2c2: i2c-bus@c0 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0xc0 0x40>; compatible = "aspeed,ast2500-i2c-bus"; @@ -643,7 +641,6 @@ i2c2: i2c-bus@c0 { i2c3: i2c-bus@100 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x100 0x40>; compatible = "aspeed,ast2500-i2c-bus"; @@ -660,7 +657,6 @@ i2c3: i2c-bus@100 { i2c4: i2c-bus@140 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x140 0x40>; compatible = "aspeed,ast2500-i2c-bus"; @@ -677,7 +673,6 @@ i2c4: i2c-bus@140 { i2c5: i2c-bus@180 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x180 0x40>; compatible = "aspeed,ast2500-i2c-bus"; @@ -694,7 +689,6 @@ i2c5: i2c-bus@180 { i2c6: i2c-bus@1c0 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x1c0 0x40>; compatible = "aspeed,ast2500-i2c-bus"; @@ -711,7 +705,6 @@ i2c6: i2c-bus@1c0 { i2c7: i2c-bus@300 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x300 0x40>; compatible = "aspeed,ast2500-i2c-bus"; @@ -728,7 +721,6 @@ i2c7: i2c-bus@300 { i2c8: i2c-bus@340 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x340 0x40>; compatible = "aspeed,ast2500-i2c-bus"; @@ -745,7 +737,6 @@ i2c8: i2c-bus@340 { i2c9: i2c-bus@380 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x380 0x40>; compatible = "aspeed,ast2500-i2c-bus"; @@ -762,7 +753,6 @@ i2c9: i2c-bus@380 { i2c10: i2c-bus@3c0 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x3c0 0x40>; compatible = "aspeed,ast2500-i2c-bus"; @@ -779,7 +769,6 @@ i2c10: i2c-bus@3c0 { i2c11: i2c-bus@400 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x400 0x40>; compatible = "aspeed,ast2500-i2c-bus"; @@ -796,7 +785,6 @@ i2c11: i2c-bus@400 { i2c12: i2c-bus@440 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x440 0x40>; compatible = "aspeed,ast2500-i2c-bus"; @@ -813,7 +801,6 @@ i2c12: i2c-bus@440 { i2c13: i2c-bus@480 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>;

reg = <0x480 0x40>; compatible = "aspeed,ast2500-i2c-bus"; diff --git a/arch/arm/boot/dts/aspeed/aspeed-g6.dtsi b/arch/arm/boot/dts/aspeed/aspeed-g6.dtsi index c4d1faade8be3..29f94696d8b18 100644 --- a/arch/arm/boot/dts/aspeed/aspeed-g6.dtsi +++ b/arch/arm/boot/dts/aspeed/aspeed-g6.dtsi @@ -474,6 +474,7 @@ sgpiom0: sgpiom@1e780500 { reg = <0x1e780500 0x100>; interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>; clocks = <&syscon ASPEED_CLK_APB2>; + #interrupt-cells = <2>; interrupt-controller; bus-frequency = <12000000>; pinctrl-names = "default"; @@ -488,6 +489,7 @@ sgpiom1: sgpiom@1e780600 { reg = <0x1e780600 0x100>; interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>; clocks = <&syscon ASPEED_CLK_APB2>; + #interrupt-cells = <2>; interrupt-controller; bus-frequency = <12000000>; pinctrl-names = "default"; @@ -902,7 +904,6 @@ &i2c { i2c0: i2c-bus@80 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>; reg = <0x80 0x80>; compatible = "aspeed,ast2600-i2c-bus"; clocks = <&syscon ASPEED_CLK_APB2>; @@ -917,7 +918,6 @@ i2c0: i2c-bus@80 { i2c1: i2c-bus@100 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>; reg = <0x100 0x80>; compatible = "aspeed,ast2600-i2c-bus"; clocks = <&syscon ASPEED_CLK_APB2>; @@ -932,7 +932,6 @@ i2c1: i2c-bus@100 { i2c2: i2c-bus@180 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>; reg = <0x180 0x80>; compatible = "aspeed,ast2600-i2c-bus"; clocks = <&syscon ASPEED_CLK_APB2>; @@ -947,7 +946,6 @@ i2c2: i2c-bus@180 { i2c3: i2c-bus@200 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>; reg = <0x200 0x80>; compatible = "aspeed,ast2600-i2c-bus"; clocks = <&syscon ASPEED_CLK_APB2>; @@ -962,7 +960,6 @@ i2c3: i2c-bus@200 { i2c4: i2c-bus@280 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>; reg = <0x280 0x80>; compatible = "aspeed,ast2600-i2c-bus"; clocks = <&syscon ASPEED_CLK_APB2>; @@ -977,7 +974,6 @@ i2c4: i2c-bus@280 { i2c5: i2c-bus@300 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>; reg = <0x300 0x80>; compatible = "aspeed,ast2600-i2c-bus"; clocks = <&syscon ASPEED_CLK_APB2>; @@ -992,7 +988,6 @@ i2c5: i2c-bus@300 { i2c6: i2c-bus@380 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>; reg = <0x380 0x80>; compatible = "aspeed,ast2600-i2c-bus"; clocks = <&syscon ASPEED_CLK_APB2>; @@ -1007,7 +1002,6 @@ i2c6: i2c-bus@380 { i2c7: i2c-bus@400 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>; reg = <0x400 0x80>; compatible = "aspeed,ast2600-i2c-bus"; clocks = <&syscon ASPEED_CLK_APB2>; @@ -1022,7 +1016,6 @@ i2c7: i2c-bus@400 { i2c8: i2c-bus@480 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>; reg = <0x480 0x80>; compatible = "aspeed,ast2600-i2c-bus"; clocks = <&syscon ASPEED_CLK_APB2>; @@ -1037,7 +1030,6 @@ i2c8: i2c-bus@480 { i2c9: i2c-bus@500 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>; reg = <0x500 0x80>; compatible = "aspeed,ast2600-i2c-bus"; clocks = <&syscon ASPEED_CLK_APB2>; @@ -1052,7 +1044,6 @@ i2c9: i2c-bus@500 { i2c10: i2c-bus@580 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>; reg = <0x580 0x80>; compatible = "aspeed,ast2600-i2c-bus"; clocks = <&syscon ASPEED_CLK_APB2>; @@ -1067,7 +1058,6 @@ i2c10: i2c-bus@580 { i2c11: i2c-bus@600 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>; reg = <0x600 0x80>; compatible = "aspeed,ast2600-i2c-bus"; clocks = <&syscon ASPEED_CLK_APB2>; @@ -1082,7 +1072,6 @@ i2c11: i2c-bus@600 { i2c12: i2c-bus@680 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>; reg = <0x680 0x80>; compatible = "aspeed,ast2600-i2c-bus"; clocks = <&syscon ASPEED_CLK_APB2>; @@ -1097,7 +1086,6 @@ i2c12: i2c-bus@680 { i2c13: i2c-bus@700 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>; reg = <0x700 0x80>; compatible = "aspeed,ast2600-i2c-bus"; clocks = <&syscon ASPEED_CLK_APB2>; @@ -1112,7 +1100,6 @@ i2c13: i2c-bus@700 { i2c14: i2c-bus@780 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>; reg = <0x780 0x80>; compatible = "aspeed,ast2600-i2c-bus"; clocks = <&syscon ASPEED_CLK_APB2>; @@ -1127,7 +1114,6 @@ i2c14: i2c-bus@780 { i2c15: i2c-bus@800 { #address-cells = <1>; #size-cells = <0>; - #interrupt-cells = <1>; reg = <0x800 0x80>; compatible = "aspeed,ast2600-i2c-bus"; clocks = <&syscon ASPEED_CLK_APB2>; diff --git a/arch/arm/boot/dts/broadcom/bcm-cygnus.dtsi b/arch/arm/boot/dts/broadcom/bcm-cygnus.dtsi index f9f79ed825181..07ca0d993c9fd 100644 --- a/arch/arm/boot/dts/broadcom/bcm-cygnus.dtsi +++ b/arch/arm/boot/dts/broadcom/bcm-cygnus.dtsi @@ -167,6 +167,7 @@ gpio_crmu: gpio@3024800 { #gpio-cells = <2>; gpio-controller; interrupt-controller; + #interrupt-cells = <2>; interrupt-parent = <&mailbox>; interrupts = <0>; }; @@ -247,6 +248,7 @@ gpio_ccm: gpio@1800a000 { gpio-controller; interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>; interrupt-controller; + #interrupt-cells = <2>; };

i2c1: i2c@1800b000 { @@ -518,6 +520,7 @@ gpio_asiu: gpio@180a5000 { gpio-controller;

interrupt-controller; + #interrupt-cells = <2>; interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>; gpio-ranges = <&pinctrl 0 42 1>, <&pinctrl 1 44 3>, diff --git a/arch/arm/boot/dts/broadcom/bcm-hr2.dtsi b/arch/arm/boot/dts/broadcom/bcm-hr2.dtsi index 788a6806191a3..75545b10ef2fa 100644 --- a/arch/arm/boot/dts/broadcom/bcm-hr2.dtsi +++ b/arch/arm/boot/dts/broadcom/bcm-hr2.dtsi @@ -200,6 +200,7 @@ gpiob: gpio@30000 { gpio-controller; ngpios = <4>; interrupt-controller; + #interrupt-cells = <2>; interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>; };

diff --git a/arch/arm/boot/dts/broadcom/bcm-nsp.dtsi b/arch/arm/boot/dts/broadcom/bcm-nsp.dtsi index 9d20ba3b1ffb1..6a4482c931674 100644 --- a/arch/arm/boot/dts/broadcom/bcm-nsp.dtsi +++ b/arch/arm/boot/dts/broadcom/bcm-nsp.dtsi @@ -180,6 +180,7 @@ gpioa: gpio@20 { gpio-controller; ngpios = <32>; interrupt-controller; + #interrupt-cells = <2>; interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>; gpio-ranges = <&pinctrl 0 0 32>; }; @@ -352,6 +353,7 @@ gpiob: gpio@30000 { gpio-controller; ngpios = <4>; interrupt-controller; + #interrupt-cells = <2>; interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>; };

diff --git a/arch/arm/boot/dts/marvell/kirkwood-l-50.dts b/arch/arm/boot/dts/marvell/kirkwood-l-50.dts index dffb9f84e67c5..c841eb8e7fb1d 100644 --- a/arch/arm/boot/dts/marvell/kirkwood-l-50.dts +++ b/arch/arm/boot/dts/marvell/kirkwood-l-50.dts @@ -65,6 +65,7 @@ i2c@11000 { gpio2: gpio-expander@20 { #gpio-cells = <2>; #interrupt-cells = <2>; + interrupt-controller; compatible = "semtech,sx1505q"; reg = <0x20>;

@@ -79,6 +80,7 @@ gpio2: gpio-expander@20 { gpio3: gpio-expander@21 { #gpio-cells = <2>; #interrupt-cells = <2>; + interrupt-controller; compatible = "semtech,sx1505q"; reg = <0x21>;

diff --git a/arch/arm/boot/dts/nuvoton/nuvoton-wpcm450.dtsi b/arch/arm/boot/dts/nuvoton/nuvoton-wpcm450.dtsi index fd671c7a1e5d6..6e1f0f164cb4f 100644 --- a/arch/arm/boot/dts/nuvoton/nuvoton-wpcm450.dtsi +++ b/arch/arm/boot/dts/nuvoton/nuvoton-wpcm450.dtsi @@ -120,6 +120,7 @@ gpio0: gpio@0 { interrupts = <2 IRQ_TYPE_LEVEL_HIGH>, <3 IRQ_TYPE_LEVEL_HIGH>, <4 IRQ_TYPE_LEVEL_HIGH>; + #interrupt-cells = <2>; interrupt-controller; };

@@ -128,6 +129,7 @@ gpio1: gpio@1 { gpio-controller; #gpio-cells = <2>; interrupts = <5 IRQ_TYPE_LEVEL_HIGH>; + #interrupt-cells = <2>; interrupt-controller; };

diff --git a/arch/arm/boot/dts/nvidia/tegra30-apalis-v1.1.dtsi b/arch/arm/boot/dts/nvidia/tegra30-apalis-v1.1.dtsi index 1640763fd4af2..ff0d684622f74 100644 --- a/arch/arm/boot/dts/nvidia/tegra30-apalis-v1.1.dtsi +++ b/arch/arm/boot/dts/nvidia/tegra30-apalis-v1.1.dtsi @@ -997,7 +997,6 @@ touchscreen@41 { compatible = "st,stmpe811"; reg = <0x41>; irq-gpio = <&gpio TEGRA_GPIO(V, 0) GPIO_ACTIVE_LOW>; - interrupt-controller; id = <0>; blocks = <0x5>; irq-trigger = <0x1>; diff --git a/arch/arm/boot/dts/nvidia/tegra30-apalis.dtsi b/arch/arm/boot/dts/nvidia/tegra30-apalis.dtsi index 3b6fad273cabf..d38f1dd38a906 100644 --- a/arch/arm/boot/dts/nvidia/tegra30-apalis.dtsi +++ b/arch/arm/boot/dts/nvidia/tegra30-apalis.dtsi @@ -980,7 +980,6 @@ touchscreen@41 { compatible = "st,stmpe811"; reg = <0x41>; irq-gpio = <&gpio TEGRA_GPIO(V, 0) GPIO_ACTIVE_LOW>; - interrupt-controller; id = <0>; blocks = <0x5>; irq-trigger = <0x1>; diff --git a/arch/arm/boot/dts/nvidia/tegra30-colibri.dtsi b/arch/arm/boot/dts/nvidia/tegra30-colibri.dtsi index 4eb526fe9c558..81c8a5fd92cce 100644 --- a/arch/arm/boot/dts/nvidia/tegra30-colibri.dtsi +++ b/arch/arm/boot/dts/nvidia/tegra30-colibri.dtsi @@ -861,7 +861,6 @@ touchscreen@41 { compatible = "st,stmpe811"; reg = <0x41>; irq-gpio = <&gpio TEGRA_GPIO(V, 0) GPIO_ACTIVE_LOW>; - interrupt-controller; id = <0>; blocks = <0x5>; irq-trigger = <0x1>; diff --git a/arch/arm/boot/dts/nxp/imx/imx6q-b850v3.dts b/arch/arm/boot/dts/nxp/imx/imx6q-b850v3.dts index db8c332df6a1d..cad112e054758 100644 --- a/arch/arm/boot/dts/nxp/imx/imx6q-b850v3.dts +++ b/arch/arm/boot/dts/nxp/imx/imx6q-b850v3.dts @@ -227,7 +227,6 @@ bridge@1,0 {

#address-cells = <3>; #size-cells = <2>; - #interrupt-cells = <1>;

bridge@2,1 { compatible = "pci10b5,8605"; @@ -235,7 +234,6 @@ bridge@2,1 {

#address-cells = <3>; #size-cells = <2>; - #interrupt-cells = <1>;

/* Intel Corporation I210 Gigabit Network Connection */ ethernet@3,0 { @@ -250,7 +248,6 @@ bridge@2,2 {

#address-cells = <3>; #size-cells = <2>; - #interrupt-cells = <1>;

/* Intel Corporation I210 Gigabit Network Connection */ switch_nic: ethernet@4,0 { diff --git a/arch/arm/boot/dts/nxp/imx/imx6q-bx50v3.dtsi b/arch/arm/boot/dts/nxp/imx/imx6q-bx50v3.dtsi index 99f4f6ac71d4a..c1ae7c47b4422 100644 --- a/arch/arm/boot/dts/nxp/imx/imx6q-bx50v3.dtsi +++ b/arch/arm/boot/dts/nxp/imx/imx6q-bx50v3.dtsi @@ -245,6 +245,7 @@ pca9539: pca9539@74 { reg = <0x74>; gpio-controller; #gpio-cells = <2>; + #interrupt-cells = <2>; interrupt-controller; interrupt-parent = <&gpio2>; interrupts = <3 IRQ_TYPE_LEVEL_LOW>; @@ -390,7 +391,6 @@ pci_root: root@0,0 {

#address-cells = <3>; #size-cells = <2>; - #interrupt-cells = <1>; }; };

diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-apalis.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-apalis.dtsi index 4cc965277c521..dcb4f6a32f809 100644 --- a/arch/arm/boot/dts/nxp/imx/imx6qdl-apalis.dtsi +++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-apalis.dtsi @@ -619,7 +619,6 @@ stmpe811@41 { blocks = <0x5>; id = <0>; interrupts = <10 IRQ_TYPE_LEVEL_LOW>; - interrupt-controller; interrupt-parent = <&gpio4>; irq-trigger = <0x1>; pinctrl-names = "default"; diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-colibri.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-colibri.dtsi index 11d9c7a2dacb1..6cc4d6fd5f28b 100644 --- a/arch/arm/boot/dts/nxp/imx/imx6qdl-colibri.dtsi +++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-colibri.dtsi @@ -543,7 +543,6 @@ stmpe811@41 { blocks = <0x5>; interrupts = <20 IRQ_TYPE_LEVEL_LOW>; interrupt-parent = <&gpio6>; - interrupt-controller; id = <0>; irq-trigger = <0x1>; pinctrl-names = "default"; diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-emcon.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-emcon.dtsi index a63e73adc1fc5..42b2ba23aefc9 100644 --- a/arch/arm/boot/dts/nxp/imx/imx6qdl-emcon.dtsi +++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-emcon.dtsi @@ -225,7 +225,6 @@ da9063: pmic@58 { pinctrl-0 = <&pinctrl_pmic>; interrupt-parent = <&gpio2>; interrupts = <8 IRQ_TYPE_LEVEL_LOW>; - interrupt-controller;

onkey { compatible = "dlg,da9063-onkey"; diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-pfla02.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-pfla02.dtsi index 113974520d544..c0c47adc5866e 100644 --- a/arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-pfla02.dtsi +++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-pfla02.dtsi @@ -124,6 +124,7 @@ pmic@58 { reg = <0x58>; interrupt-parent = <&gpio2>; interrupts = <9 IRQ_TYPE_LEVEL_LOW>; /* active-low GPIO2_9 */ + #interrupt-cells = <2>; interrupt-controller;

regulators { diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-phycore-som.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-phycore-som.dtsi index 86b4269e0e011..85e278eb20161 100644 --- a/arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-phycore-som.dtsi +++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-phycore-som.dtsi @@ -100,6 +100,7 @@ pmic: pmic@58 { interrupt-parent = <&gpio1>; interrupts = <2 IRQ_TYPE_LEVEL_LOW>; interrupt-controller; + #interrupt-cells = <2>; gpio-controller; #gpio-cells = <2>;

diff --git a/arch/arm/boot/dts/nxp/imx/imx7d-pico-dwarf.dts b/arch/arm/boot/dts/nxp/imx/imx7d-pico-dwarf.dts index 12361fcbe24af..1b965652291bf 100644 --- a/arch/arm/boot/dts/nxp/imx/imx7d-pico-dwarf.dts +++ b/arch/arm/boot/dts/nxp/imx/imx7d-pico-dwarf.dts @@ -63,6 +63,7 @@ pca9554: io-expander@25 { gpio-controller; #gpio-cells = <2>; #interrupt-cells = <2>; + interrupt-controller; reg = <0x25>; };

diff --git a/arch/arm/boot/dts/nxp/vf/vf610-zii-dev-rev-b.dts b/arch/arm/boot/dts/nxp/vf/vf610-zii-dev-rev-b.dts index 16b4e06c4efad..a248b8a453421 100644 --- a/arch/arm/boot/dts/nxp/vf/vf610-zii-dev-rev-b.dts +++ b/arch/arm/boot/dts/nxp/vf/vf610-zii-dev-rev-b.dts @@ -338,6 +338,7 @@ gpio6: io-expander@22 { reg = <0x22>; gpio-controller; #gpio-cells = <2>; + #interrupt-cells = <2>; interrupt-controller; interrupt-parent = <&gpio3>; interrupts = <2 IRQ_TYPE_LEVEL_LOW>; diff --git a/arch/arm/boot/dts/st/stm32429i-eval.dts b/arch/arm/boot/dts/st/stm32429i-eval.dts index 576235ec3c516..afa417b34b25f 100644 --- a/arch/arm/boot/dts/st/stm32429i-eval.dts +++ b/arch/arm/boot/dts/st/stm32429i-eval.dts @@ -222,7 +222,6 @@ stmpe1600: stmpe1600@42 { reg = <0x42>; interrupts = <8 3>; interrupt-parent = <&gpioi>; - interrupt-controller; wakeup-source;

stmpegpio: stmpe_gpio { diff --git a/arch/arm/boot/dts/st/stm32mp157c-dk2.dts b/arch/arm/boot/dts/st/stm32mp157c-dk2.dts index 510cca5acb79c..7a701f7ef0c70 100644 --- a/arch/arm/boot/dts/st/stm32mp157c-dk2.dts +++ b/arch/arm/boot/dts/st/stm32mp157c-dk2.dts @@ -64,7 +64,6 @@ touchscreen@38 { reg = <0x38>; interrupts = <2 2>; interrupt-parent = <&gpiof>; - interrupt-controller; touchscreen-size-x = <480>; touchscreen-size-y = <800>; status = "okay"; diff --git a/arch/arm/boot/dts/ti/omap/am5729-beagleboneai.dts b/arch/arm/boot/dts/ti/omap/am5729-beagleboneai.dts index 9a234dc1431d1..5b240769d300e 100644 --- a/arch/arm/boot/dts/ti/omap/am5729-beagleboneai.dts +++ b/arch/arm/boot/dts/ti/omap/am5729-beagleboneai.dts @@ -415,7 +415,6 @@ stmpe811@41 { reg = <0x41>; interrupts = <30 IRQ_TYPE_LEVEL_LOW>; interrupt-parent = <&gpio2>; - interrupt-controller; id = <0>; blocks = <0x5>; irq-trigger = <0x1>;

From: Rob Herring robh@kernel.org

[ Upstream commit f02b0f0dc26fbb77fe47b6e47cc5c211f0432c37 ]

The dtc interrupt_map warning is off because its dependency, interrupt_provider, is off by default. Fix all the warnings so it can be enabled.

Signed-off-by: Rob Herring robh@kernel.org Reviewed-by: Linus Walleij linus.walleij@linaro.org Link: https://lore.kernel.org/r/20240213-arm-dt-cleanups-v1-4-f2dee1292525@kernel.... Signed-off-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/boot/dts/intel/ixp/intel-ixp42x-gateway-7001.dts | 2 ++ .../boot/dts/intel/ixp/intel-ixp42x-goramo-multilink.dts | 2 ++ arch/arm/boot/dts/qcom/qcom-sdx55.dtsi | 8 ++++---- 3 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/intel/ixp/intel-ixp42x-gateway-7001.dts b/arch/arm/boot/dts/intel/ixp/intel-ixp42x-gateway-7001.dts index 4d70f6afd13ab..6d5e69035f94d 100644 --- a/arch/arm/boot/dts/intel/ixp/intel-ixp42x-gateway-7001.dts +++ b/arch/arm/boot/dts/intel/ixp/intel-ixp42x-gateway-7001.dts @@ -60,6 +60,8 @@ pci@c0000000 { * We have slots (IDSEL) 1 and 2 with one assigned IRQ * each handling all IRQs. */ + #interrupt-cells = <1>; + interrupt-map-mask = <0xf800 0 0 7>; interrupt-map = /* IDSEL 1 */ <0x0800 0 0 1 &gpio0 11 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 1 is irq 11 */ diff --git a/arch/arm/boot/dts/intel/ixp/intel-ixp42x-goramo-multilink.dts b/arch/arm/boot/dts/intel/ixp/intel-ixp42x-goramo-multilink.dts index 9ec0169bacf8c..5f4c849915db7 100644 --- a/arch/arm/boot/dts/intel/ixp/intel-ixp42x-goramo-multilink.dts +++ b/arch/arm/boot/dts/intel/ixp/intel-ixp42x-goramo-multilink.dts @@ -89,6 +89,8 @@ pci@c0000000 { * The slots have Ethernet, Ethernet, NEC and MPCI. * The IDSELs are 11, 12, 13, 14. */ + #interrupt-cells = <1>; + interrupt-map-mask = <0xf800 0 0 7>; interrupt-map = /* IDSEL 11 - Ethernet A */ <0x5800 0 0 1 &gpio0 4 IRQ_TYPE_LEVEL_LOW>, /* INT A on slot 11 is irq 4 */ diff --git a/arch/arm/boot/dts/qcom/qcom-sdx55.dtsi b/arch/arm/boot/dts/qcom/qcom-sdx55.dtsi index 5b86b4de1a1bd..f9ad5abfbd28b 100644 --- a/arch/arm/boot/dts/qcom/qcom-sdx55.dtsi +++ b/arch/arm/boot/dts/qcom/qcom-sdx55.dtsi @@ -345,10 +345,10 @@ pcie_rc: pcie@1c00000 { "msi8"; #interrupt-cells = <1>; interrupt-map-mask = <0 0 0 0x7>; - interrupt-map = <0 0 0 1 &intc 0 0 0 141 IRQ_TYPE_LEVEL_HIGH>, /* int_a */ - <0 0 0 2 &intc 0 0 0 142 IRQ_TYPE_LEVEL_HIGH>, /* int_b */ - <0 0 0 3 &intc 0 0 0 143 IRQ_TYPE_LEVEL_HIGH>, /* int_c */ - <0 0 0 4 &intc 0 0 0 144 IRQ_TYPE_LEVEL_HIGH>; /* int_d */ + interrupt-map = <0 0 0 1 &intc 0 141 IRQ_TYPE_LEVEL_HIGH>, /* int_a */ + <0 0 0 2 &intc 0 142 IRQ_TYPE_LEVEL_HIGH>, /* int_b */ + <0 0 0 3 &intc 0 143 IRQ_TYPE_LEVEL_HIGH>, /* int_c */ + <0 0 0 4 &intc 0 144 IRQ_TYPE_LEVEL_HIGH>; /* int_d */

clocks = <&gcc GCC_PCIE_PIPE_CLK>, <&gcc GCC_PCIE_AUX_CLK>,

From: Geert Uytterhoeven geert+renesas@glider.be

[ Upstream commit 8c987693dc2d292d777f1be63cb35233049ae25e ]

make dtbs_check W=2:

arch/arm/boot/dts/renesas/r8a7790-lager.dts:444.11-458.5: Warning (interrupt_provider): /i2c-mux4/pmic@58: Missing '#interrupt-cells' in interrupt provider ...

Fix this by adding the missing #interrupt-cells properties.

Reported-by: Rob Herring robh@kernel.org Signed-off-by: Geert Uytterhoeven geert+renesas@glider.be Reviewed-by: Rob Herring robh@kernel.org Link: https://lore.kernel.org/r/a351e503ea97fb1af68395843f513925ff1bdf26.170792246... Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/boot/dts/renesas/r8a7790-lager.dts | 1 + arch/arm/boot/dts/renesas/r8a7790-stout.dts | 1 + arch/arm/boot/dts/renesas/r8a7791-koelsch.dts | 1 + arch/arm/boot/dts/renesas/r8a7791-porter.dts | 1 + arch/arm/boot/dts/renesas/r8a7792-blanche.dts | 1 + arch/arm/boot/dts/renesas/r8a7793-gose.dts | 1 + arch/arm/boot/dts/renesas/r8a7794-alt.dts | 1 + arch/arm/boot/dts/renesas/r8a7794-silk.dts | 1 + 8 files changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/renesas/r8a7790-lager.dts b/arch/arm/boot/dts/renesas/r8a7790-lager.dts index 5ad5349a50dc9..ab7e9fa90b9fe 100644 --- a/arch/arm/boot/dts/renesas/r8a7790-lager.dts +++ b/arch/arm/boot/dts/renesas/r8a7790-lager.dts @@ -437,6 +437,7 @@ pmic@58 { interrupt-parent = <&irqc0>; interrupts = <2 IRQ_TYPE_LEVEL_LOW>; interrupt-controller; + #interrupt-cells = <2>;

rtc { compatible = "dlg,da9063-rtc"; diff --git a/arch/arm/boot/dts/renesas/r8a7790-stout.dts b/arch/arm/boot/dts/renesas/r8a7790-stout.dts index fe14727eefe1e..25956661a8754 100644 --- a/arch/arm/boot/dts/renesas/r8a7790-stout.dts +++ b/arch/arm/boot/dts/renesas/r8a7790-stout.dts @@ -332,6 +332,7 @@ pmic@58 { interrupt-parent = <&irqc0>; interrupts = <2 IRQ_TYPE_LEVEL_LOW>; interrupt-controller; + #interrupt-cells = <2>;

onkey { compatible = "dlg,da9063-onkey"; diff --git a/arch/arm/boot/dts/renesas/r8a7791-koelsch.dts b/arch/arm/boot/dts/renesas/r8a7791-koelsch.dts index 26a40782cc899..4a76be68887b4 100644 --- a/arch/arm/boot/dts/renesas/r8a7791-koelsch.dts +++ b/arch/arm/boot/dts/renesas/r8a7791-koelsch.dts @@ -800,6 +800,7 @@ pmic@58 { interrupt-parent = <&irqc0>; interrupts = <2 IRQ_TYPE_LEVEL_LOW>; interrupt-controller; + #interrupt-cells = <2>;

rtc { compatible = "dlg,da9063-rtc"; diff --git a/arch/arm/boot/dts/renesas/r8a7791-porter.dts b/arch/arm/boot/dts/renesas/r8a7791-porter.dts index ec0a20d5130d6..fcc9a2313e1df 100644 --- a/arch/arm/boot/dts/renesas/r8a7791-porter.dts +++ b/arch/arm/boot/dts/renesas/r8a7791-porter.dts @@ -389,6 +389,7 @@ pmic@5a { interrupt-parent = <&irqc0>; interrupts = <2 IRQ_TYPE_LEVEL_LOW>; interrupt-controller; + #interrupt-cells = <2>;

watchdog { compatible = "dlg,da9063-watchdog"; diff --git a/arch/arm/boot/dts/renesas/r8a7792-blanche.dts b/arch/arm/boot/dts/renesas/r8a7792-blanche.dts index 6a83923aa4612..20963c9bbf0ad 100644 --- a/arch/arm/boot/dts/renesas/r8a7792-blanche.dts +++ b/arch/arm/boot/dts/renesas/r8a7792-blanche.dts @@ -330,6 +330,7 @@ pmic@58 { interrupt-parent = <&irqc>; interrupts = <2 IRQ_TYPE_LEVEL_LOW>; interrupt-controller; + #interrupt-cells = <2>;

rtc { compatible = "dlg,da9063-rtc"; diff --git a/arch/arm/boot/dts/renesas/r8a7793-gose.dts b/arch/arm/boot/dts/renesas/r8a7793-gose.dts index 79b537b246426..9358fc7d0e9f6 100644 --- a/arch/arm/boot/dts/renesas/r8a7793-gose.dts +++ b/arch/arm/boot/dts/renesas/r8a7793-gose.dts @@ -735,6 +735,7 @@ pmic@58 { interrupt-parent = <&irqc0>; interrupts = <2 IRQ_TYPE_LEVEL_LOW>; interrupt-controller; + #interrupt-cells = <2>;

rtc { compatible = "dlg,da9063-rtc"; diff --git a/arch/arm/boot/dts/renesas/r8a7794-alt.dts b/arch/arm/boot/dts/renesas/r8a7794-alt.dts index 4d93319674c6e..3a9db455ddec9 100644 --- a/arch/arm/boot/dts/renesas/r8a7794-alt.dts +++ b/arch/arm/boot/dts/renesas/r8a7794-alt.dts @@ -458,6 +458,7 @@ pmic@58 { interrupt-parent = <&gpio3>; interrupts = <31 IRQ_TYPE_LEVEL_LOW>; interrupt-controller; + #interrupt-cells = <2>;

rtc { compatible = "dlg,da9063-rtc"; diff --git a/arch/arm/boot/dts/renesas/r8a7794-silk.dts b/arch/arm/boot/dts/renesas/r8a7794-silk.dts index b7af1befa126b..b825f2e25dd06 100644 --- a/arch/arm/boot/dts/renesas/r8a7794-silk.dts +++ b/arch/arm/boot/dts/renesas/r8a7794-silk.dts @@ -424,6 +424,7 @@ pmic@58 { interrupt-parent = <&gpio3>; interrupts = <31 IRQ_TYPE_LEVEL_LOW>; interrupt-controller; + #interrupt-cells = <2>;

onkey { compatible = "dlg,da9063-onkey";

From: Filipe Manana fdmanana@suse.com

[ Upstream commit e06cc89475eddc1f3a7a4d471524256152c68166 ]

At space_info.c we have several places where we access the ->reserved field of a block reserve without taking the block reserve's spinlock first, which makes KCSAN warn about a data race since that field is always updated while holding the spinlock.

The reports from KCSAN are like the following:

[117.193526] BUG: KCSAN: data-race in btrfs_block_rsv_release [btrfs] / need_preemptive_reclaim [btrfs]

[117.195148] read to 0x000000017f587190 of 8 bytes by task 6303 on cpu 3: [117.195172] need_preemptive_reclaim+0x222/0x2f0 [btrfs] [117.195992] __reserve_bytes+0xbb0/0xdc8 [btrfs] [117.196807] btrfs_reserve_metadata_bytes+0x4c/0x120 [btrfs] [117.197620] btrfs_block_rsv_add+0x78/0xa8 [btrfs] [117.198434] btrfs_delayed_update_inode+0x154/0x368 [btrfs] [117.199300] btrfs_update_inode+0x108/0x1c8 [btrfs] [117.200122] btrfs_dirty_inode+0xb4/0x140 [btrfs] [117.200937] btrfs_update_time+0x8c/0xb0 [btrfs] [117.201754] touch_atime+0x16c/0x1e0 [117.201789] filemap_read+0x674/0x728 [117.201823] btrfs_file_read_iter+0xf8/0x410 [btrfs] [117.202653] vfs_read+0x2b6/0x498 [117.203454] ksys_read+0xa2/0x150 [117.203473] __s390x_sys_read+0x68/0x88 [117.203495] do_syscall+0x1c6/0x210 [117.203517] __do_syscall+0xc8/0xf0 [117.203539] system_call+0x70/0x98

[117.203579] write to 0x000000017f587190 of 8 bytes by task 11 on cpu 0: [117.203604] btrfs_block_rsv_release+0x2e8/0x578 [btrfs] [117.204432] btrfs_delayed_inode_release_metadata+0x7c/0x1d0 [btrfs] [117.205259] __btrfs_update_delayed_inode+0x37c/0x5e0 [btrfs] [117.206093] btrfs_async_run_delayed_root+0x356/0x498 [btrfs] [117.206917] btrfs_work_helper+0x160/0x7a0 [btrfs] [117.207738] process_one_work+0x3b6/0x838 [117.207768] worker_thread+0x75e/0xb10 [117.207797] kthread+0x21a/0x230 [117.207830] __ret_from_fork+0x6c/0xb8 [117.207861] ret_from_fork+0xa/0x30

So add a helper to get the reserved amount of a block reserve while holding the lock. The value may be not be up to date anymore when used by need_preemptive_reclaim() and btrfs_preempt_reclaim_metadata_space(), but that's ok since the worst it can do is cause more reclaim work do be done sooner rather than later. Reading the field while holding the lock instead of using the data_race() annotation is used in order to prevent load tearing.

Signed-off-by: Filipe Manana fdmanana@suse.com Reviewed-by: David Sterba dsterba@suse.com Signed-off-by: David Sterba dsterba@suse.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/btrfs/block-rsv.h | 16 ++++++++++++++++ fs/btrfs/space-info.c | 26 +++++++++++++------------- 2 files changed, 29 insertions(+), 13 deletions(-)

diff --git a/fs/btrfs/block-rsv.h b/fs/btrfs/block-rsv.h index b0bd12b8652f4..fb440a074700a 100644 --- a/fs/btrfs/block-rsv.h +++ b/fs/btrfs/block-rsv.h @@ -101,4 +101,20 @@ static inline bool btrfs_block_rsv_full(const struct btrfs_block_rsv *rsv) return data_race(rsv->full); }

+/* + * Get the reserved mount of a block reserve in a context where getting a stale + * value is acceptable, instead of accessing it directly and trigger data race + * warning from KCSAN. + */ +static inline u64 btrfs_block_rsv_reserved(struct btrfs_block_rsv *rsv) +{ + u64 ret; + + spin_lock(&rsv->lock); + ret = rsv->reserved; + spin_unlock(&rsv->lock); + + return ret; +} + #endif /* BTRFS_BLOCK_RSV_H */ diff --git a/fs/btrfs/space-info.c b/fs/btrfs/space-info.c index d7e8cd4f140cf..3f7a9605e2d3a 100644 --- a/fs/btrfs/space-info.c +++ b/fs/btrfs/space-info.c @@ -837,7 +837,7 @@ btrfs_calc_reclaim_metadata_size(struct btrfs_fs_info *fs_info, static bool need_preemptive_reclaim(struct btrfs_fs_info *fs_info, struct btrfs_space_info *space_info) { - u64 global_rsv_size = fs_info->global_block_rsv.reserved; + const u64 global_rsv_size = btrfs_block_rsv_reserved(&fs_info->global_block_rsv); u64 ordered, delalloc; u64 thresh; u64 used; @@ -937,8 +937,8 @@ static bool need_preemptive_reclaim(struct btrfs_fs_info *fs_info, ordered = percpu_counter_read_positive(&fs_info->ordered_bytes) >> 1; delalloc = percpu_counter_read_positive(&fs_info->delalloc_bytes); if (ordered >= delalloc) - used += fs_info->delayed_refs_rsv.reserved + - fs_info->delayed_block_rsv.reserved; + used += btrfs_block_rsv_reserved(&fs_info->delayed_refs_rsv) + + btrfs_block_rsv_reserved(&fs_info->delayed_block_rsv); else used += space_info->bytes_may_use - global_rsv_size;

@@ -1153,7 +1153,7 @@ static void btrfs_preempt_reclaim_metadata_space(struct work_struct *work) enum btrfs_flush_state flush; u64 delalloc_size = 0; u64 to_reclaim, block_rsv_size; - u64 global_rsv_size = global_rsv->reserved; + const u64 global_rsv_size = btrfs_block_rsv_reserved(global_rsv);

loops++;

@@ -1165,9 +1165,9 @@ static void btrfs_preempt_reclaim_metadata_space(struct work_struct *work) * assume it's tied up in delalloc reservations. */ block_rsv_size = global_rsv_size + - delayed_block_rsv->reserved + - delayed_refs_rsv->reserved + - trans_rsv->reserved; + btrfs_block_rsv_reserved(delayed_block_rsv) + + btrfs_block_rsv_reserved(delayed_refs_rsv) + + btrfs_block_rsv_reserved(trans_rsv); if (block_rsv_size < space_info->bytes_may_use) delalloc_size = space_info->bytes_may_use - block_rsv_size;

@@ -1187,16 +1187,16 @@ static void btrfs_preempt_reclaim_metadata_space(struct work_struct *work) to_reclaim = delalloc_size; flush = FLUSH_DELALLOC; } else if (space_info->bytes_pinned > - (delayed_block_rsv->reserved + - delayed_refs_rsv->reserved)) { + (btrfs_block_rsv_reserved(delayed_block_rsv) + + btrfs_block_rsv_reserved(delayed_refs_rsv))) { to_reclaim = space_info->bytes_pinned; flush = COMMIT_TRANS; - } else if (delayed_block_rsv->reserved > - delayed_refs_rsv->reserved) { - to_reclaim = delayed_block_rsv->reserved; + } else if (btrfs_block_rsv_reserved(delayed_block_rsv) > + btrfs_block_rsv_reserved(delayed_refs_rsv)) { + to_reclaim = btrfs_block_rsv_reserved(delayed_block_rsv); flush = FLUSH_DELAYED_ITEMS_NR; } else { - to_reclaim = delayed_refs_rsv->reserved; + to_reclaim = btrfs_block_rsv_reserved(delayed_refs_rsv); flush = FLUSH_DELAYED_REFS_NR; }

From: Andre Werner andre.werner@systec-electronic.com

[ Upstream commit 45532b21dc2a692444b6ad5f71c253cca53e8103 ]

This patch adds support for the SYS TEC USB-SPEmodule1 10Base-T1L ethernet device to the existing smsc95xx driver by adding the new USB VID/PID pair.

Signed-off-by: Andre Werner andre.werner@systec-electronic.com Link: https://lore.kernel.org/r/20240219053413.4732-1-andre.werner@systec-electron... Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/usb/smsc95xx.c | 5 +++++ 1 file changed, 5 insertions(+)

diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c index a530f20ee2575..2fa46baa589e5 100644 --- a/drivers/net/usb/smsc95xx.c +++ b/drivers/net/usb/smsc95xx.c @@ -2104,6 +2104,11 @@ static const struct usb_device_id products[] = { USB_DEVICE(0x0424, 0x9E08), .driver_info = (unsigned long) &smsc95xx_info, }, + { + /* SYSTEC USB-SPEmodule1 10BASE-T1L Ethernet Device */ + USB_DEVICE(0x0878, 0x1400), + .driver_info = (unsigned long)&smsc95xx_info, + }, { /* Microchip's EVB-LAN8670-USB 10BASE-T1S Ethernet Device */ USB_DEVICE(0x184F, 0x0051),

From: Christian König christian.koenig@amd.com

[ Upstream commit 9d3f8a723c7950e56e0b95ab84b572caee29e065 ]

At least the device test requires that no other driver using TTM is loaded. So make those unit tests depend on UML || COMPILE_TEST to prevent people from trying them on bare metal.

Signed-off-by: Christian König christian.koenig@amd.com Acked-by: Alex Deucher alexander.deucher@amd.com Link: https://lore.kernel.org/all/20240219230116.77b8ad68@yea/ Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/Kconfig | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index 3caa020391c75..ec4abf9ff47b5 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -198,7 +198,7 @@ config DRM_TTM config DRM_TTM_KUNIT_TEST tristate "KUnit tests for TTM" if !KUNIT_ALL_TESTS default n - depends on DRM && KUNIT && MMU + depends on DRM && KUNIT && MMU && (UML || COMPILE_TEST) select DRM_TTM select DRM_EXPORT_FOR_TESTS if m select DRM_KUNIT_TEST_HELPERS @@ -206,7 +206,8 @@ config DRM_TTM_KUNIT_TEST help Enables unit tests for TTM, a GPU memory manager subsystem used to manage memory buffers. This option is mostly useful for kernel - developers. + developers. It depends on (UML || COMPILE_TEST) since no other driver + which uses TTM can be loaded while running the tests.

If in doubt, say "N".

From: Ranjan Kumar ranjan.kumar@broadcom.com

[ Upstream commit ee0017c3ed8a8abfa4d40e42f908fb38c31e7515 ]

If the driver detects that the controller is not ready before sending the first IOC facts command, it will wait for a maximum of 10 seconds for it to become ready. However, even if the controller becomes ready within 10 seconds, the driver will still issue a diagnostic reset.

Modify the driver to avoid sending a diag reset if the controller becomes ready within the 10-second wait time.

Signed-off-by: Ranjan Kumar ranjan.kumar@broadcom.com Link: https://lore.kernel.org/r/20240221071724.14986-1-ranjan.kumar@broadcom.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/mpt3sas/mpt3sas_base.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index a75f670bf5519..aa29e250cf15f 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -7387,7 +7387,9 @@ _base_wait_for_iocstate(struct MPT3SAS_ADAPTER *ioc, int timeout) return -EFAULT; }

- issue_diag_reset: + return 0; + +issue_diag_reset: rc = _base_diag_reset(ioc); return rc; }

From: Prike Liang Prike.Liang@amd.com

[ Upstream commit c671ec01311b4744b377f98b0b4c6d033fe569b3 ]

Currently, GPU resets can now be performed successfully on the Raven series. While GPU reset is required for the S3 suspend abort case. So now can enable gpu reset for S3 abort cases on the Raven series.

Signed-off-by: Prike Liang Prike.Liang@amd.com Acked-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdgpu/soc15.c | 45 +++++++++++++++++------------- 1 file changed, 25 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c index 2a7c606d1d191..a41ed67ea9fea 100644 --- a/drivers/gpu/drm/amd/amdgpu/soc15.c +++ b/drivers/gpu/drm/amd/amdgpu/soc15.c @@ -574,11 +574,34 @@ soc15_asic_reset_method(struct amdgpu_device *adev) return AMD_RESET_METHOD_MODE1; }

+static bool soc15_need_reset_on_resume(struct amdgpu_device *adev) +{ + u32 sol_reg; + + sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81); + + /* Will reset for the following suspend abort cases. + * 1) Only reset limit on APU side, dGPU hasn't checked yet. + * 2) S3 suspend abort and TOS already launched. + */ + if (adev->flags & AMD_IS_APU && adev->in_s3 && + !adev->suspend_complete && + sol_reg) + return true; + + return false; +} + static int soc15_asic_reset(struct amdgpu_device *adev) { /* original raven doesn't have full asic reset */ - if ((adev->apu_flags & AMD_APU_IS_RAVEN) || - (adev->apu_flags & AMD_APU_IS_RAVEN2)) + /* On the latest Raven, the GPU reset can be performed + * successfully. So now, temporarily enable it for the + * S3 suspend abort case. + */ + if (((adev->apu_flags & AMD_APU_IS_RAVEN) || + (adev->apu_flags & AMD_APU_IS_RAVEN2)) && + !soc15_need_reset_on_resume(adev)) return 0;

switch (soc15_asic_reset_method(adev)) { @@ -1296,24 +1319,6 @@ static int soc15_common_suspend(void *handle) return soc15_common_hw_fini(adev); }

-static bool soc15_need_reset_on_resume(struct amdgpu_device *adev) -{ - u32 sol_reg; - - sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81); - - /* Will reset for the following suspend abort cases. - * 1) Only reset limit on APU side, dGPU hasn't checked yet. - * 2) S3 suspend abort and TOS already launched. - */ - if (adev->flags & AMD_IS_APU && adev->in_s3 && - !adev->suspend_complete && - sol_reg) - return true; - - return false; -} - static int soc15_common_resume(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle;

From: Yuxuan Hu 20373622@buaa.edu.cn

[ Upstream commit 2535b848fa0f42ddff3e5255cf5e742c9b77bb26 ]

During our fuzz testing of the connection and disconnection process at the RFCOMM layer, we discovered this bug. By comparing the packets from a normal connection and disconnection process with the testcase that triggered a KASAN report. We analyzed the cause of this bug as follows:

1. In the packets captured during a normal connection, the host sends a `Read Encryption Key Size` type of `HCI_CMD` packet (Command Opcode: 0x1408) to the controller to inquire the length of encryption key.After receiving this packet, the controller immediately replies with a Command Completepacket (Event Code: 0x0e) to return the Encryption Key Size.

2. In our fuzz test case, the timing of the controller's response to this packet was delayed to an unexpected point: after the RFCOMM and L2CAP layers had disconnected but before the HCI layer had disconnected.

3. After receiving the Encryption Key Size Response at the time described in point 2, the host still called the rfcomm_check_security function. However, by this time `struct l2cap_conn *conn = l2cap_pi(sk)->chan->conn;` had already been released, and when the function executed `return hci_conn_security(conn->hcon, d->sec_level, auth_type, d->out);`, specifically when accessing `conn->hcon`, a null-ptr-deref error occurred.

To fix this bug, check if `sk->sk_state` is BT_CLOSED before calling rfcomm_recv_frame in rfcomm_process_rx.

Signed-off-by: Yuxuan Hu 20373622@buaa.edu.cn Signed-off-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- net/bluetooth/rfcomm/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c index 053ef8f25fae4..1d34d84970332 100644 --- a/net/bluetooth/rfcomm/core.c +++ b/net/bluetooth/rfcomm/core.c @@ -1941,7 +1941,7 @@ static struct rfcomm_session *rfcomm_process_rx(struct rfcomm_session *s) /* Get data directly from socket receive queue without copying it. */ while ((skb = skb_dequeue(&sk->sk_receive_queue))) { skb_orphan(skb); - if (!skb_linearize(skb)) { + if (!skb_linearize(skb) && sk->sk_state != BT_CLOSED) { s = rfcomm_recv_frame(s, skb); if (!s) break;

From: Takashi Sakamoto o-takashi@sakamocchi.jp

[ Upstream commit d0b06dc48fb15902d7da09c5c0861e7f042a9381 ]

When resetting the bus after a gap count error, use a long rather than short bus reset.

IEEE 1394-1995 uses only long bus resets. IEEE 1394a adds the option of short bus resets. When video or audio transmission is in progress and a device is hot-plugged elsewhere on the bus, the resulting bus reset can cause video frame drops or audio dropouts. Short bus resets reduce or eliminate this problem. Accordingly, short bus resets are almost always preferred.

However, on a mixed 1394/1394a bus, a short bus reset can trigger an immediate additional bus reset. This double bus reset can be interpreted differently by different nodes on the bus, resulting in an inconsistent gap count after the bus reset. An inconsistent gap count will cause another bus reset, leading to a neverending bus reset loop. This only happens for some bus topologies, not for all mixed 1394/1394a buses.

By instead sending a long bus reset after a gap count inconsistency, we avoid the doubled bus reset, restoring the bus to normal operation.

Signed-off-by: Adam Goldman adamg@pobox.com Link: https://sourceforge.net/p/linux1394/mailman/message/58741624/ Signed-off-by: Takashi Sakamoto o-takashi@sakamocchi.jp Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/firewire/core-card.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/firewire/core-card.c b/drivers/firewire/core-card.c index 8aaa7fcb2630d..401a77e3b5fa8 100644 --- a/drivers/firewire/core-card.c +++ b/drivers/firewire/core-card.c @@ -500,7 +500,19 @@ static void bm_work(struct work_struct *work) fw_notice(card, "phy config: new root=%x, gap_count=%d\n", new_root_id, gap_count); fw_send_phy_config(card, new_root_id, generation, gap_count); - reset_bus(card, true); + /* + * Where possible, use a short bus reset to minimize + * disruption to isochronous transfers. But in the event + * of a gap count inconsistency, use a long bus reset. + * + * As noted in 1394a 8.4.6.2, nodes on a mixed 1394/1394a bus + * may set different gap counts after a bus reset. On a mixed + * 1394/1394a bus, a short bus reset can get doubled. Some + * nodes may treat the double reset as one bus reset and others + * may treat it as two, causing a gap count inconsistency + * again. Using a long bus reset prevents this. + */ + reset_bus(card, card->gap_count != 0); /* Will allocate broadcast channel after the reset. */ goto out; }

From: Thierry Reding treding@nvidia.com

[ Upstream commit 4c892121d43bc2b45896ca207b54f39a8fa6b852 ]

The PHY is configured in 10GBASE-R, so make sure to reflect that in DT.

Reviewed-by: Jon Hunter jonathanh@nvidia.com Tested-by: Jon Hunter jonathanh@nvidia.com Signed-off-by: Thierry Reding treding@nvidia.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts index 4413a9b6da87a..bf2ccc8ff93c4 100644 --- a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts +++ b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts @@ -174,7 +174,7 @@ ethernet@6800000 { status = "okay";

phy-handle = <&mgbe0_phy>; - phy-mode = "usxgmii"; + phy-mode = "10gbase-r";

mdio { #address-cells = <1>;

From: Saurabh Sengar ssengar@linux.microsoft.com

[ Upstream commit 0d63e4c0ebc2b5c329babde44fd61d3f08db814d ]

The current method for signaling the compatibility of a Hyper-V host with MSIs featuring 15-bit APIC IDs relies on a synthetic cpuid leaf. However, for higher VTLs, this leaf is not reported, due to the absence of an IO-APIC.

As an alternative, assume that when running at a high VTL, the host supports 15-bit APIC IDs. This assumption is safe, as Hyper-V does not employ any architectural MSIs at higher VTLs

This unblocks startup of VTL2 environments with more than 256 CPUs.

Signed-off-by: Saurabh Sengar ssengar@linux.microsoft.com Reviewed-by: Michael Kelley mhklinux@outlook.com Link: https://lore.kernel.org/r/1705341460-18394-1-git-send-email-ssengar@linux.mi... Signed-off-by: Wei Liu wei.liu@kernel.org Message-ID: 1705341460-18394-1-git-send-email-ssengar@linux.microsoft.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/x86/hyperv/hv_vtl.c | 7 +++++++ 1 file changed, 7 insertions(+)

diff --git a/arch/x86/hyperv/hv_vtl.c b/arch/x86/hyperv/hv_vtl.c index 999f5ac82fe90..53b309d41b3b9 100644 --- a/arch/x86/hyperv/hv_vtl.c +++ b/arch/x86/hyperv/hv_vtl.c @@ -16,6 +16,11 @@ extern struct boot_params boot_params; static struct real_mode_header hv_vtl_real_mode_header;

+static bool __init hv_vtl_msi_ext_dest_id(void) +{ + return true; +} + void __init hv_vtl_init_platform(void) { pr_info("Linux runs in Hyper-V Virtual Trust Level\n"); @@ -38,6 +43,8 @@ void __init hv_vtl_init_platform(void) x86_platform.legacy.warm_reset = 0; x86_platform.legacy.reserve_bios_regions = 0; x86_platform.legacy.devices.pnpbios = 0; + + x86_init.hyper.msi_ext_dest_id = hv_vtl_msi_ext_dest_id; }

static inline u64 hv_vtl_system_desc_base(struct ldttss_desc *desc)

From: Mike Yu yumike@google.com

[ Upstream commit d4872d70fc6feabfc8e897edad993a81096ade9f ]

In current code, xfrm_bundle_create() always uses the matched SA's family type to look up a xfrm child route for the skb. The route returned by xfrm_dst_lookup() will eventually be used in xfrm_output_resume() (skb_dst(skb)->ops->local_out()).

If packet offload is used, the above behavior can lead to calling ip_local_out() for an IPv6 packet or calling ip6_local_out() for an IPv4 packet, which is likely to fail.

This change fixes the behavior by checking if the matched SA has packet offload enabled. If not, keep the same behavior; if yes, use the matched SP's family type for the lookup.

Test: verified IPv6-in-IPv4 packets on Android device with IPsec packet offload enabled Signed-off-by: Mike Yu yumike@google.com Signed-off-by: Steffen Klassert steffen.klassert@secunet.com Signed-off-by: Sasha Levin sashal@kernel.org --- net/xfrm/xfrm_policy.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index d24b4d4f620ea..97d69ec54ff9c 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -2679,7 +2679,9 @@ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy, if (xfrm[i]->props.smark.v || xfrm[i]->props.smark.m) mark = xfrm_smark_get(fl->flowi_mark, xfrm[i]);

- family = xfrm[i]->props.family; + if (xfrm[i]->xso.type != XFRM_DEV_OFFLOAD_PACKET) + family = xfrm[i]->props.family; + oif = fl->flowi_oif ? : fl->flowi_l3mdev; dst = xfrm_dst_lookup(xfrm[i], tos, oif, &saddr, &daddr, family, mark);

From: Uwe Kleine-König u.kleine-koenig@pengutronix.de

[ Upstream commit 963465a33141d0d52338e77f80fe543d2c9dc053 ]

On a PC Engines APU our admins are faced with:

$ dmesg | grep -c "gpio-keys-polled gpio-keys-polled: unable to claim gpio 0, err=-517" 261

Such a message always appears when e.g. a new USB device is plugged in.

Suppress this message which considerably clutters the kernel log for EPROBE_DEFER (i.e. -517).

Signed-off-by: Uwe Kleine-König u.kleine-koenig@pengutronix.de Reviewed-by: Linus Walleij linus.walleij@linaro.org Link: https://lore.kernel.org/r/20240305101042.10953-2-u.kleine-koenig@pengutronix... Signed-off-by: Dmitry Torokhov dmitry.torokhov@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/input/keyboard/gpio_keys_polled.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/input/keyboard/gpio_keys_polled.c b/drivers/input/keyboard/gpio_keys_polled.c index ba00ecfbd343b..b41fd1240f431 100644 --- a/drivers/input/keyboard/gpio_keys_polled.c +++ b/drivers/input/keyboard/gpio_keys_polled.c @@ -315,12 +315,10 @@ static int gpio_keys_polled_probe(struct platform_device *pdev)

error = devm_gpio_request_one(dev, button->gpio, flags, button->desc ? : DRV_NAME); - if (error) { - dev_err(dev, - "unable to claim gpio %u, err=%d\n", - button->gpio, error); - return error; - } + if (error) + return dev_err_probe(dev, error, + "unable to claim gpio %u\n", + button->gpio);

bdata->gpiod = gpio_to_desc(button->gpio); if (!bdata->gpiod) {

From: Stuart Henderson stuarth@opensource.cirrus.com

[ Upstream commit 6fa849e4d78b880e878138bf238e4fd2bac3c4fa ]

Signed-off-by: Stuart Henderson stuarth@opensource.cirrus.com Link: https://msgid.link/r/20240306161439.1385643-2-stuarth@opensource.cirrus.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/codecs/wm8962.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-)

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c index d444b7776ece1..914f8eb418357 100644 --- a/sound/soc/codecs/wm8962.c +++ b/sound/soc/codecs/wm8962.c @@ -2229,6 +2229,9 @@ SND_SOC_DAPM_PGA_E("HPOUT", SND_SOC_NOPM, 0, 0, NULL, 0, hp_event,

SND_SOC_DAPM_OUTPUT("HPOUTL"), SND_SOC_DAPM_OUTPUT("HPOUTR"), + +SND_SOC_DAPM_PGA("SPKOUTL Output", WM8962_CLASS_D_CONTROL_1, 6, 0, NULL, 0), +SND_SOC_DAPM_PGA("SPKOUTR Output", WM8962_CLASS_D_CONTROL_1, 7, 0, NULL, 0), };

static const struct snd_soc_dapm_widget wm8962_dapm_spk_mono_widgets[] = { @@ -2236,7 +2239,6 @@ SND_SOC_DAPM_MIXER("Speaker Mixer", WM8962_MIXER_ENABLES, 1, 0, spkmixl, ARRAY_SIZE(spkmixl)), SND_SOC_DAPM_MUX_E("Speaker PGA", WM8962_PWR_MGMT_2, 4, 0, &spkoutl_mux, out_pga_event, SND_SOC_DAPM_POST_PMU), -SND_SOC_DAPM_PGA("Speaker Output", WM8962_CLASS_D_CONTROL_1, 7, 0, NULL, 0), SND_SOC_DAPM_OUTPUT("SPKOUT"), };

@@ -2251,9 +2253,6 @@ SND_SOC_DAPM_MUX_E("SPKOUTL PGA", WM8962_PWR_MGMT_2, 4, 0, &spkoutl_mux, SND_SOC_DAPM_MUX_E("SPKOUTR PGA", WM8962_PWR_MGMT_2, 3, 0, &spkoutr_mux, out_pga_event, SND_SOC_DAPM_POST_PMU),

-SND_SOC_DAPM_PGA("SPKOUTR Output", WM8962_CLASS_D_CONTROL_1, 7, 0, NULL, 0), -SND_SOC_DAPM_PGA("SPKOUTL Output", WM8962_CLASS_D_CONTROL_1, 6, 0, NULL, 0), - SND_SOC_DAPM_OUTPUT("SPKOUTL"), SND_SOC_DAPM_OUTPUT("SPKOUTR"), }; @@ -2366,12 +2365,18 @@ static const struct snd_soc_dapm_route wm8962_spk_mono_intercon[] = { { "Speaker PGA", "Mixer", "Speaker Mixer" }, { "Speaker PGA", "DAC", "DACL" },

- { "Speaker Output", NULL, "Speaker PGA" }, - { "Speaker Output", NULL, "SYSCLK" }, - { "Speaker Output", NULL, "TOCLK" }, - { "Speaker Output", NULL, "TEMP_SPK" }, + { "SPKOUTL Output", NULL, "Speaker PGA" }, + { "SPKOUTL Output", NULL, "SYSCLK" }, + { "SPKOUTL Output", NULL, "TOCLK" }, + { "SPKOUTL Output", NULL, "TEMP_SPK" }, + + { "SPKOUTR Output", NULL, "Speaker PGA" }, + { "SPKOUTR Output", NULL, "SYSCLK" }, + { "SPKOUTR Output", NULL, "TOCLK" }, + { "SPKOUTR Output", NULL, "TEMP_SPK" },

- { "SPKOUT", NULL, "Speaker Output" }, + { "SPKOUT", NULL, "SPKOUTL Output" }, + { "SPKOUT", NULL, "SPKOUTR Output" }, };

static const struct snd_soc_dapm_route wm8962_spk_stereo_intercon[] = {

From: Nikita Zhandarovich n.zhandarovich@fintech.ru

[ Upstream commit 3948abaa4e2be938ccdfc289385a27342fb13d43 ]

syzbot identified a kernel information leak vulnerability in do_sys_name_to_handle() and issued the following report [1].

[1] "BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:114 [inline] BUG: KMSAN: kernel-infoleak in _copy_to_user+0xbc/0x100 lib/usercopy.c:40 instrument_copy_to_user include/linux/instrumented.h:114 [inline] _copy_to_user+0xbc/0x100 lib/usercopy.c:40 copy_to_user include/linux/uaccess.h:191 [inline] do_sys_name_to_handle fs/fhandle.c:73 [inline] __do_sys_name_to_handle_at fs/fhandle.c:112 [inline] __se_sys_name_to_handle_at+0x949/0xb10 fs/fhandle.c:94 __x64_sys_name_to_handle_at+0xe4/0x140 fs/fhandle.c:94 ...

Uninit was created at: slab_post_alloc_hook+0x129/0xa70 mm/slab.h:768 slab_alloc_node mm/slub.c:3478 [inline] __kmem_cache_alloc_node+0x5c9/0x970 mm/slub.c:3517 __do_kmalloc_node mm/slab_common.c:1006 [inline] __kmalloc+0x121/0x3c0 mm/slab_common.c:1020 kmalloc include/linux/slab.h:604 [inline] do_sys_name_to_handle fs/fhandle.c:39 [inline] __do_sys_name_to_handle_at fs/fhandle.c:112 [inline] __se_sys_name_to_handle_at+0x441/0xb10 fs/fhandle.c:94 __x64_sys_name_to_handle_at+0xe4/0x140 fs/fhandle.c:94 ...

Bytes 18-19 of 20 are uninitialized Memory access of size 20 starts at ffff888128a46380 Data copied to user address 0000000020000240"

Per Chuck Lever's suggestion, use kzalloc() instead of kmalloc() to solve the problem.

Fixes: 990d6c2d7aee ("vfs: Add name to file handle conversion support") Suggested-by: Chuck Lever III chuck.lever@oracle.com Reported-and-tested-by: syzbot+09b349b3066c2e0b1e96@syzkaller.appspotmail.com Signed-off-by: Nikita Zhandarovich n.zhandarovich@fintech.ru Link: https://lore.kernel.org/r/20240119153906.4367-1-n.zhandarovich@fintech.ru Reviewed-by: Jan Kara jack@suse.cz Signed-off-by: Christian Brauner brauner@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- fs/fhandle.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/fhandle.c b/fs/fhandle.c index 6ea8d35a9382a..99dcf07cfecfe 100644 --- a/fs/fhandle.c +++ b/fs/fhandle.c @@ -40,7 +40,7 @@ static long do_sys_name_to_handle(const struct path *path, if (f_handle.handle_bytes > MAX_HANDLE_SZ) return -EINVAL;

- handle = kmalloc(sizeof(struct file_handle) + f_handle.handle_bytes, + handle = kzalloc(sizeof(struct file_handle) + f_handle.handle_bytes, GFP_KERNEL); if (!handle) return -ENOMEM;

From: Tejun Heo tj@kernel.org

[ Upstream commit a045a272d887575da17ad86d6573e82871b50c27 ]

max_active is a workqueue-wide setting and the configured value is stored in wq->saved_max_active; however, the effective value was stored in pwq->max_active. While this is harmless, it makes max_active update process more complicated and gets in the way of the planned max_active semantic updates for unbound workqueues.

This patches moves pwq->max_active to wq->max_active. This simplifies the code and makes freezing and noop max_active updates cheaper too. No user-visible behavior change is intended.

As wq->max_active is updated while holding wq mutex but read without any locking, it now uses WRITE/READ_ONCE(). A new locking locking rule WO is added for it.

v2: wq->max_active now uses WRITE/READ_ONCE() as suggested by Lai.

Signed-off-by: Tejun Heo tj@kernel.org Reviewed-by: Lai Jiangshan jiangshanlai@gmail.com Stable-dep-of: 5797b1c18919 ("workqueue: Implement system-wide nr_active enforcement for unbound workqueues") Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/workqueue.c | 133 ++++++++++++++++++++++----------------------- 1 file changed, 66 insertions(+), 67 deletions(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c index e004e65ae987e..3aa48ba8c7175 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -143,6 +143,9 @@ enum { * * WR: wq->mutex protected for writes. RCU protected for reads. * + * WO: wq->mutex protected for writes. Updated with WRITE_ONCE() and can be read + * with READ_ONCE() without locking. + * * MD: wq_mayday_lock protected. * * WD: Used internally by the watchdog. @@ -250,7 +253,6 @@ struct pool_workqueue { * is marked with WORK_STRUCT_INACTIVE iff it is in pwq->inactive_works. */ int nr_active; /* L: nr of active works */ - int max_active; /* L: max active works */ struct list_head inactive_works; /* L: inactive works */ struct list_head pwqs_node; /* WR: node on wq->pwqs */ struct list_head mayday_node; /* MD: node on wq->maydays */ @@ -298,7 +300,8 @@ struct workqueue_struct { struct worker *rescuer; /* MD: rescue worker */

int nr_drainers; /* WQ: drain in progress */ - int saved_max_active; /* WQ: saved pwq max_active */ + int max_active; /* WO: max active works */ + int saved_max_active; /* WQ: saved max_active */

struct workqueue_attrs *unbound_attrs; /* PW: only for unbound wqs */ struct pool_workqueue *dfl_pwq; /* PW: only for unbound wqs */ @@ -1486,7 +1489,7 @@ static void pwq_dec_nr_in_flight(struct pool_workqueue *pwq, unsigned long work_ pwq->nr_active--; if (!list_empty(&pwq->inactive_works)) { /* one down, submit an inactive one */ - if (pwq->nr_active < pwq->max_active) + if (pwq->nr_active < READ_ONCE(pwq->wq->max_active)) pwq_activate_first_inactive(pwq); } } @@ -1787,7 +1790,13 @@ static void __queue_work(int cpu, struct workqueue_struct *wq, pwq->nr_in_flight[pwq->work_color]++; work_flags = work_color_to_flags(pwq->work_color);

- if (likely(pwq->nr_active < pwq->max_active)) { + /* + * Limit the number of concurrently active work items to max_active. + * @work must also queue behind existing inactive work items to maintain + * ordering when max_active changes. See wq_adjust_max_active(). + */ + if (list_empty(&pwq->inactive_works) && + pwq->nr_active < READ_ONCE(pwq->wq->max_active)) { if (list_empty(&pool->worklist)) pool->watchdog_ts = jiffies;

@@ -4136,50 +4145,6 @@ static void pwq_release_workfn(struct kthread_work *work) } }

-/** - * pwq_adjust_max_active - update a pwq's max_active to the current setting - * @pwq: target pool_workqueue - * - * If @pwq isn't freezing, set @pwq->max_active to the associated - * workqueue's saved_max_active and activate inactive work items - * accordingly. If @pwq is freezing, clear @pwq->max_active to zero. - */ -static void pwq_adjust_max_active(struct pool_workqueue *pwq) -{ - struct workqueue_struct *wq = pwq->wq; - bool freezable = wq->flags & WQ_FREEZABLE; - unsigned long flags; - - /* for @wq->saved_max_active */ - lockdep_assert_held(&wq->mutex); - - /* fast exit for non-freezable wqs */ - if (!freezable && pwq->max_active == wq->saved_max_active) - return; - - /* this function can be called during early boot w/ irq disabled */ - raw_spin_lock_irqsave(&pwq->pool->lock, flags); - - /* - * During [un]freezing, the caller is responsible for ensuring that - * this function is called at least once after @workqueue_freezing - * is updated and visible. - */ - if (!freezable || !workqueue_freezing) { - pwq->max_active = wq->saved_max_active; - - while (!list_empty(&pwq->inactive_works) && - pwq->nr_active < pwq->max_active) - pwq_activate_first_inactive(pwq); - - kick_pool(pwq->pool); - } else { - pwq->max_active = 0; - } - - raw_spin_unlock_irqrestore(&pwq->pool->lock, flags); -} - /* initialize newly allocated @pwq which is associated with @wq and @pool */ static void init_pwq(struct pool_workqueue *pwq, struct workqueue_struct *wq, struct worker_pool *pool) @@ -4212,9 +4177,6 @@ static void link_pwq(struct pool_workqueue *pwq) /* set the matching work_color */ pwq->work_color = wq->work_color;

- /* sync max_active to the current setting */ - pwq_adjust_max_active(pwq); - /* link in @pwq */ list_add_rcu(&pwq->pwqs_node, &wq->pwqs); } @@ -4665,6 +4627,52 @@ static int init_rescuer(struct workqueue_struct *wq) return 0; }

+/** + * wq_adjust_max_active - update a wq's max_active to the current setting + * @wq: target workqueue + * + * If @wq isn't freezing, set @wq->max_active to the saved_max_active and + * activate inactive work items accordingly. If @wq is freezing, clear + * @wq->max_active to zero. + */ +static void wq_adjust_max_active(struct workqueue_struct *wq) +{ + struct pool_workqueue *pwq; + + lockdep_assert_held(&wq->mutex); + + if ((wq->flags & WQ_FREEZABLE) && workqueue_freezing) { + WRITE_ONCE(wq->max_active, 0); + return; + } + + if (wq->max_active == wq->saved_max_active) + return; + + /* + * Update @wq->max_active and then kick inactive work items if more + * active work items are allowed. This doesn't break work item ordering + * because new work items are always queued behind existing inactive + * work items if there are any. + */ + WRITE_ONCE(wq->max_active, wq->saved_max_active); + + for_each_pwq(pwq, wq) { + unsigned long flags; + + /* this function can be called during early boot w/ irq disabled */ + raw_spin_lock_irqsave(&pwq->pool->lock, flags); + + while (!list_empty(&pwq->inactive_works) && + pwq->nr_active < wq->max_active) + pwq_activate_first_inactive(pwq); + + kick_pool(pwq->pool); + + raw_spin_unlock_irqrestore(&pwq->pool->lock, flags); + } +} + __printf(1, 4) struct workqueue_struct *alloc_workqueue(const char *fmt, unsigned int flags, @@ -4672,7 +4680,6 @@ struct workqueue_struct *alloc_workqueue(const char *fmt, { va_list args; struct workqueue_struct *wq; - struct pool_workqueue *pwq; int len;

/* @@ -4711,6 +4718,7 @@ struct workqueue_struct *alloc_workqueue(const char *fmt,

/* init wq */ wq->flags = flags; + wq->max_active = max_active; wq->saved_max_active = max_active; mutex_init(&wq->mutex); atomic_set(&wq->nr_pwqs_to_flush, 0); @@ -4739,8 +4747,7 @@ struct workqueue_struct *alloc_workqueue(const char *fmt, mutex_lock(&wq_pool_mutex);

mutex_lock(&wq->mutex); - for_each_pwq(pwq, wq) - pwq_adjust_max_active(pwq); + wq_adjust_max_active(wq); mutex_unlock(&wq->mutex);

list_add_tail_rcu(&wq->list, &workqueues); @@ -4878,8 +4885,6 @@ EXPORT_SYMBOL_GPL(destroy_workqueue); */ void workqueue_set_max_active(struct workqueue_struct *wq, int max_active) { - struct pool_workqueue *pwq; - /* disallow meddling with max_active for ordered workqueues */ if (WARN_ON(wq->flags & __WQ_ORDERED_EXPLICIT)) return; @@ -4890,9 +4895,7 @@ void workqueue_set_max_active(struct workqueue_struct *wq, int max_active)

wq->flags &= ~__WQ_ORDERED; wq->saved_max_active = max_active; - - for_each_pwq(pwq, wq) - pwq_adjust_max_active(pwq); + wq_adjust_max_active(wq);

mutex_unlock(&wq->mutex); } @@ -5139,8 +5142,8 @@ static void show_pwq(struct pool_workqueue *pwq) pr_info(" pwq %d:", pool->id); pr_cont_pool_info(pool);

- pr_cont(" active=%d/%d refcnt=%d%s\n", - pwq->nr_active, pwq->max_active, pwq->refcnt, + pr_cont(" active=%d refcnt=%d%s\n", + pwq->nr_active, pwq->refcnt, !list_empty(&pwq->mayday_node) ? " MAYDAY" : "");

hash_for_each(pool->busy_hash, bkt, worker, hentry) { @@ -5688,7 +5691,6 @@ EXPORT_SYMBOL_GPL(work_on_cpu_safe_key); void freeze_workqueues_begin(void) { struct workqueue_struct *wq; - struct pool_workqueue *pwq;

mutex_lock(&wq_pool_mutex);

@@ -5697,8 +5699,7 @@ void freeze_workqueues_begin(void)

list_for_each_entry(wq, &workqueues, list) { mutex_lock(&wq->mutex); - for_each_pwq(pwq, wq) - pwq_adjust_max_active(pwq); + wq_adjust_max_active(wq); mutex_unlock(&wq->mutex); }

@@ -5763,7 +5764,6 @@ bool freeze_workqueues_busy(void) void thaw_workqueues(void) { struct workqueue_struct *wq; - struct pool_workqueue *pwq;

mutex_lock(&wq_pool_mutex);

@@ -5775,8 +5775,7 @@ void thaw_workqueues(void) /* restore max_active and repopulate worklist */ list_for_each_entry(wq, &workqueues, list) { mutex_lock(&wq->mutex); - for_each_pwq(pwq, wq) - pwq_adjust_max_active(pwq); + wq_adjust_max_active(wq); mutex_unlock(&wq->mutex); }

From: Tejun Heo tj@kernel.org

[ Upstream commit 4c6380305d21e36581b451f7337a36c93b64e050 ]

To prepare for unbound nr_active handling improvements, move work activation part of pwq_activate_inactive_work() into __pwq_activate_work() and add pwq_activate_work() which tests WORK_STRUCT_INACTIVE and updates nr_active.

pwq_activate_first_inactive() and try_to_grab_pending() are updated to use pwq_activate_work(). The latter conversion is functionally identical. For the former, this conversion adds an unnecessary WORK_STRUCT_INACTIVE testing. This is temporary and will be removed by the next patch.

Signed-off-by: Tejun Heo tj@kernel.org Reviewed-by: Lai Jiangshan jiangshanlai@gmail.com Stable-dep-of: 5797b1c18919 ("workqueue: Implement system-wide nr_active enforcement for unbound workqueues") Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/workqueue.c | 31 +++++++++++++++++++++++++------ 1 file changed, 25 insertions(+), 6 deletions(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 3eb0408133ada..3436fd266cde0 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -1455,16 +1455,36 @@ static bool pwq_is_empty(struct pool_workqueue *pwq) return !pwq->nr_active && list_empty(&pwq->inactive_works); }

-static void pwq_activate_inactive_work(struct work_struct *work) +static void __pwq_activate_work(struct pool_workqueue *pwq, + struct work_struct *work) { - struct pool_workqueue *pwq = get_work_pwq(work); - trace_workqueue_activate_work(work); if (list_empty(&pwq->pool->worklist)) pwq->pool->watchdog_ts = jiffies; move_linked_works(work, &pwq->pool->worklist, NULL); __clear_bit(WORK_STRUCT_INACTIVE_BIT, work_data_bits(work)); +} + +/** + * pwq_activate_work - Activate a work item if inactive + * @pwq: pool_workqueue @work belongs to + * @work: work item to activate + * + * Returns %true if activated. %false if already active. + */ +static bool pwq_activate_work(struct pool_workqueue *pwq, + struct work_struct *work) +{ + struct worker_pool *pool = pwq->pool; + + lockdep_assert_held(&pool->lock); + + if (!(*work_data_bits(work) & WORK_STRUCT_INACTIVE)) + return false; + pwq->nr_active++; + __pwq_activate_work(pwq, work); + return true; }

static void pwq_activate_first_inactive(struct pool_workqueue *pwq) @@ -1472,7 +1492,7 @@ static void pwq_activate_first_inactive(struct pool_workqueue *pwq) struct work_struct *work = list_first_entry(&pwq->inactive_works, struct work_struct, entry);

- pwq_activate_inactive_work(work); + pwq_activate_work(pwq, work); }

/** @@ -1610,8 +1630,7 @@ static int try_to_grab_pending(struct work_struct *work, bool is_dwork, * management later on and cause stall. Make sure the work * item is activated before grabbing. */ - if (*work_data_bits(work) & WORK_STRUCT_INACTIVE) - pwq_activate_inactive_work(work); + pwq_activate_work(pwq, work);

list_del_init(&work->entry); pwq_dec_nr_in_flight(pwq, *work_data_bits(work));

From: Tejun Heo tj@kernel.org

[ Upstream commit c5404d4e6df6faba1007544b5f4e62c7c14416dd ]

wq_adjust_max_active() needs to activate work items after max_active is increased. Previously, it did that by visiting each pwq once activating all that could be activated. While this makes sense with per-pwq nr_active, nr_active will be shared across multiple pwqs for unbound wqs. Then, we'd want to round-robin through pwqs to be fairer.

In preparation, this patch makes wq_adjust_max_active() round-robin pwqs while activating. While the activation ordering changes, this shouldn't cause user-noticeable behavior changes.

Signed-off-by: Tejun Heo tj@kernel.org Reviewed-by: Lai Jiangshan jiangshanlai@gmail.com Stable-dep-of: 5797b1c18919 ("workqueue: Implement system-wide nr_active enforcement for unbound workqueues") Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/workqueue.c | 31 +++++++++++++++++++------------ 1 file changed, 19 insertions(+), 12 deletions(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 51dc508ac35b5..76559b63ee1fc 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -4710,7 +4710,7 @@ static int init_rescuer(struct workqueue_struct *wq) */ static void wq_adjust_max_active(struct workqueue_struct *wq) { - struct pool_workqueue *pwq; + bool activated;

lockdep_assert_held(&wq->mutex);

@@ -4730,19 +4730,26 @@ static void wq_adjust_max_active(struct workqueue_struct *wq) */ WRITE_ONCE(wq->max_active, wq->saved_max_active);

- for_each_pwq(pwq, wq) { - unsigned long flags; - - /* this function can be called during early boot w/ irq disabled */ - raw_spin_lock_irqsave(&pwq->pool->lock, flags); - - while (pwq_activate_first_inactive(pwq)) - ; + /* + * Round-robin through pwq's activating the first inactive work item + * until max_active is filled. + */ + do { + struct pool_workqueue *pwq;

- kick_pool(pwq->pool); + activated = false; + for_each_pwq(pwq, wq) { + unsigned long flags;

- raw_spin_unlock_irqrestore(&pwq->pool->lock, flags); - } + /* can be called during early boot w/ irq disabled */ + raw_spin_lock_irqsave(&pwq->pool->lock, flags); + if (pwq_activate_first_inactive(pwq)) { + activated = true; + kick_pool(pwq->pool); + } + raw_spin_unlock_irqrestore(&pwq->pool->lock, flags); + } + } while (activated); }

__printf(1, 4)

From: Tejun Heo tj@kernel.org

[ Upstream commit 91ccc6e7233bb10a9c176aa4cc70d6f432a441a5 ]

Currently, for both percpu and unbound workqueues, max_active applies per-cpu, which is a recent change for unbound workqueues. The change for unbound workqueues was a significant departure from the previous behavior of per-node application. It made some use cases create undesirable number of concurrent work items and left no good way of fixing them. To address the problem, workqueue is implementing a NUMA node segmented global nr_active mechanism, which will be explained further in the next patch.

As a preparation, this patch introduces struct wq_node_nr_active. It's a data structured allocated for each workqueue and NUMA node pair and currently only tracks the workqueue's number of active work items on the node. This is split out from the next patch to make it easier to understand and review.

Note that there is an extra wq_node_nr_active allocated for the invalid node nr_node_ids which is used to track nr_active for pools which don't have NUMA node associated such as the default fallback system-wide pool.

This doesn't cause any behavior changes visible to userland yet. The next patch will expand to implement the control mechanism on top.

v4: - Fixed out-of-bound access when freeing per-cpu workqueues.

v3: - Use flexible array for wq->node_nr_active as suggested by Lai.

v2: - wq->max_active now uses WRITE/READ_ONCE() as suggested by Lai.

- Lai pointed out that pwq_tryinc_nr_active() incorrectly dropped pwq->max_active check. Restored. As the next patch replaces the max_active enforcement mechanism, this doesn't change the end result.

Signed-off-by: Tejun Heo tj@kernel.org Reviewed-by: Lai Jiangshan jiangshanlai@gmail.com Stable-dep-of: 5797b1c18919 ("workqueue: Implement system-wide nr_active enforcement for unbound workqueues") Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/workqueue.c | 142 ++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 135 insertions(+), 7 deletions(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 80c0a84aa147c..252ad3bfe7998 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -280,6 +280,16 @@ struct wq_flusher {

struct wq_device;

+/* + * Unlike in a per-cpu workqueue where max_active limits its concurrency level + * on each CPU, in an unbound workqueue, max_active applies to the whole system. + * As sharing a single nr_active across multiple sockets can be very expensive, + * the counting and enforcement is per NUMA node. + */ +struct wq_node_nr_active { + atomic_t nr; /* per-node nr_active count */ +}; + /* * The externally visible workqueue. It relays the issued work items to * the appropriate worker_pool through its pool_workqueues. @@ -326,6 +336,7 @@ struct workqueue_struct { /* hot fields used during command issue, aligned to cacheline */ unsigned int flags ____cacheline_aligned; /* WQ: WQ_* flags */ struct pool_workqueue __percpu __rcu **cpu_pwq; /* I: per-cpu pwqs */ + struct wq_node_nr_active *node_nr_active[]; /* I: per-node nr_active */ };

static struct kmem_cache *pwq_cache; @@ -1415,6 +1426,31 @@ work_func_t wq_worker_last_func(struct task_struct *task) return worker->last_func; }

+/** + * wq_node_nr_active - Determine wq_node_nr_active to use + * @wq: workqueue of interest + * @node: NUMA node, can be %NUMA_NO_NODE + * + * Determine wq_node_nr_active to use for @wq on @node. Returns: + * + * - %NULL for per-cpu workqueues as they don't need to use shared nr_active. + * + * - node_nr_active[nr_node_ids] if @node is %NUMA_NO_NODE. + * + * - Otherwise, node_nr_active[@node]. + */ +static struct wq_node_nr_active *wq_node_nr_active(struct workqueue_struct *wq, + int node) +{ + if (!(wq->flags & WQ_UNBOUND)) + return NULL; + + if (node == NUMA_NO_NODE) + node = nr_node_ids; + + return wq->node_nr_active[node]; +} + /** * get_pwq - get an extra reference on the specified pool_workqueue * @pwq: pool_workqueue to get @@ -1496,12 +1532,17 @@ static bool pwq_activate_work(struct pool_workqueue *pwq, struct work_struct *work) { struct worker_pool *pool = pwq->pool; + struct wq_node_nr_active *nna;

lockdep_assert_held(&pool->lock);

if (!(*work_data_bits(work) & WORK_STRUCT_INACTIVE)) return false;

+ nna = wq_node_nr_active(pwq->wq, pool->node); + if (nna) + atomic_inc(&nna->nr); + pwq->nr_active++; __pwq_activate_work(pwq, work); return true; @@ -1518,14 +1559,18 @@ static bool pwq_tryinc_nr_active(struct pool_workqueue *pwq) { struct workqueue_struct *wq = pwq->wq; struct worker_pool *pool = pwq->pool; + struct wq_node_nr_active *nna = wq_node_nr_active(wq, pool->node); bool obtained;

lockdep_assert_held(&pool->lock);

obtained = pwq->nr_active < READ_ONCE(wq->max_active);

- if (obtained) + if (obtained) { pwq->nr_active++; + if (nna) + atomic_inc(&nna->nr); + } return obtained; }

@@ -1562,10 +1607,26 @@ static bool pwq_activate_first_inactive(struct pool_workqueue *pwq) static void pwq_dec_nr_active(struct pool_workqueue *pwq) { struct worker_pool *pool = pwq->pool; + struct wq_node_nr_active *nna = wq_node_nr_active(pwq->wq, pool->node);

lockdep_assert_held(&pool->lock);

+ /* + * @pwq->nr_active should be decremented for both percpu and unbound + * workqueues. + */ pwq->nr_active--; + + /* + * For a percpu workqueue, it's simple. Just need to kick the first + * inactive work item on @pwq itself. + */ + if (!nna) { + pwq_activate_first_inactive(pwq); + return; + } + + atomic_dec(&nna->nr); pwq_activate_first_inactive(pwq); }

@@ -4020,11 +4081,63 @@ static void wq_free_lockdep(struct workqueue_struct *wq) } #endif

+static void free_node_nr_active(struct wq_node_nr_active **nna_ar) +{ + int node; + + for_each_node(node) { + kfree(nna_ar[node]); + nna_ar[node] = NULL; + } + + kfree(nna_ar[nr_node_ids]); + nna_ar[nr_node_ids] = NULL; +} + +static void init_node_nr_active(struct wq_node_nr_active *nna) +{ + atomic_set(&nna->nr, 0); +} + +/* + * Each node's nr_active counter will be accessed mostly from its own node and + * should be allocated in the node. + */ +static int alloc_node_nr_active(struct wq_node_nr_active **nna_ar) +{ + struct wq_node_nr_active *nna; + int node; + + for_each_node(node) { + nna = kzalloc_node(sizeof(*nna), GFP_KERNEL, node); + if (!nna) + goto err_free; + init_node_nr_active(nna); + nna_ar[node] = nna; + } + + /* [nr_node_ids] is used as the fallback */ + nna = kzalloc_node(sizeof(*nna), GFP_KERNEL, NUMA_NO_NODE); + if (!nna) + goto err_free; + init_node_nr_active(nna); + nna_ar[nr_node_ids] = nna; + + return 0; + +err_free: + free_node_nr_active(nna_ar); + return -ENOMEM; +} + static void rcu_free_wq(struct rcu_head *rcu) { struct workqueue_struct *wq = container_of(rcu, struct workqueue_struct, rcu);

+ if (wq->flags & WQ_UNBOUND) + free_node_nr_active(wq->node_nr_active); + wq_free_lockdep(wq); free_percpu(wq->cpu_pwq); free_workqueue_attrs(wq->unbound_attrs); @@ -4776,7 +4889,8 @@ struct workqueue_struct *alloc_workqueue(const char *fmt, { va_list args; struct workqueue_struct *wq; - int len; + size_t wq_size; + int name_len;

/* * Unbound && max_active == 1 used to imply ordered, which is no longer @@ -4792,7 +4906,12 @@ struct workqueue_struct *alloc_workqueue(const char *fmt, flags |= WQ_UNBOUND;

/* allocate wq and format name */ - wq = kzalloc(sizeof(*wq), GFP_KERNEL); + if (flags & WQ_UNBOUND) + wq_size = struct_size(wq, node_nr_active, nr_node_ids + 1); + else + wq_size = sizeof(*wq); + + wq = kzalloc(wq_size, GFP_KERNEL); if (!wq) return NULL;

@@ -4803,11 +4922,12 @@ struct workqueue_struct *alloc_workqueue(const char *fmt, }

va_start(args, max_active); - len = vsnprintf(wq->name, sizeof(wq->name), fmt, args); + name_len = vsnprintf(wq->name, sizeof(wq->name), fmt, args); va_end(args);

- if (len >= WQ_NAME_LEN) - pr_warn_once("workqueue: name exceeds WQ_NAME_LEN. Truncating to: %s\n", wq->name); + if (name_len >= WQ_NAME_LEN) + pr_warn_once("workqueue: name exceeds WQ_NAME_LEN. Truncating to: %s\n", + wq->name);

max_active = max_active ?: WQ_DFL_ACTIVE; max_active = wq_clamp_max_active(max_active, flags, wq->name); @@ -4826,8 +4946,13 @@ struct workqueue_struct *alloc_workqueue(const char *fmt, wq_init_lockdep(wq); INIT_LIST_HEAD(&wq->list);

+ if (flags & WQ_UNBOUND) { + if (alloc_node_nr_active(wq->node_nr_active) < 0) + goto err_unreg_lockdep; + } + if (alloc_and_link_pwqs(wq) < 0) - goto err_unreg_lockdep; + goto err_free_node_nr_active;

if (wq_online && init_rescuer(wq) < 0) goto err_destroy; @@ -4852,6 +4977,9 @@ struct workqueue_struct *alloc_workqueue(const char *fmt,

return wq;

+err_free_node_nr_active: + if (wq->flags & WQ_UNBOUND) + free_node_nr_active(wq->node_nr_active); err_unreg_lockdep: wq_unregister_lockdep(wq); wq_free_lockdep(wq);

From: Tejun Heo tj@kernel.org

[ Upstream commit 15930da42f8981dc42c19038042947b475b19f47 ]

For wq_update_node_max_active(), @off_cpu of -1 indicates that no CPU is going down. The function was incorrectly calling cpumask_test_cpu() with -1 CPU leading to oopses like the following on some archs:

Unable to handle kernel paging request at virtual address ffff0002100296e0 .. pc : wq_update_node_max_active+0x50/0x1fc lr : wq_update_node_max_active+0x1f0/0x1fc ... Call trace: wq_update_node_max_active+0x50/0x1fc apply_wqattrs_commit+0xf0/0x114 apply_workqueue_attrs_locked+0x58/0xa0 alloc_workqueue+0x5ac/0x774 workqueue_init_early+0x460/0x540 start_kernel+0x258/0x684 __primary_switched+0xb8/0xc0 Code: 9100a273 35000d01 53067f00 d0016dc1 (f8607a60) ---[ end trace 0000000000000000 ]--- Kernel panic - not syncing: Attempted to kill the idle task! ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]---

Fix it.

Signed-off-by: Tejun Heo tj@kernel.org Reported-by: Marek Szyprowski m.szyprowski@samsung.com Reported-by: Nathan Chancellor nathan@kernel.org Tested-by: Nathan Chancellor nathan@kernel.org Link: http://lkml.kernel.org/r/91eacde0-df99-4d5c-a980-91046f66e612@samsung.com Fixes: 5797b1c18919 ("workqueue: Implement system-wide nr_active enforcement for unbound workqueues") Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/workqueue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c index b2975e44dffa9..7d231bbd16593 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -1500,7 +1500,7 @@ static void wq_update_node_max_active(struct workqueue_struct *wq, int off_cpu)

lockdep_assert_held(&wq->mutex);

- if (!cpumask_test_cpu(off_cpu, effective)) + if (off_cpu >= 0 && !cpumask_test_cpu(off_cpu, effective)) off_cpu = -1;

total_cpus = cpumask_weight_and(effective, cpu_online_mask);

From: Bart Van Assche bvanassche@acm.org

[ Upstream commit ec16b147a55bfa14e858234eb7b1a7c8e7cd5021 ]

Reject values that are valid rw_hints after truncation but not before truncation by passing an untruncated value to rw_hint_valid().

Reviewed-by: Christoph Hellwig hch@lst.de Reviewed-by: Kanchan Joshi joshi.k@samsung.com Cc: Jeff Layton jlayton@kernel.org Cc: Chuck Lever chuck.lever@oracle.com Cc: Jens Axboe axboe@kernel.dk Cc: Stephen Rothwell sfr@canb.auug.org.au Fixes: 5657cb0797c4 ("fs/fcntl: use copy_to/from_user() for u64 types") Signed-off-by: Bart Van Assche bvanassche@acm.org Link: https://lore.kernel.org/r/20240202203926.2478590-2-bvanassche@acm.org Signed-off-by: Christian Brauner brauner@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- fs/fcntl.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/fs/fcntl.c b/fs/fcntl.c index e871009f6c889..9f606714d081b 100644 --- a/fs/fcntl.c +++ b/fs/fcntl.c @@ -268,7 +268,7 @@ static int f_getowner_uids(struct file *filp, unsigned long arg) } #endif

-static bool rw_hint_valid(enum rw_hint hint) +static bool rw_hint_valid(u64 hint) { switch (hint) { case RWH_WRITE_LIFE_NOT_SET: @@ -288,19 +288,17 @@ static long fcntl_rw_hint(struct file *file, unsigned int cmd, { struct inode *inode = file_inode(file); u64 __user *argp = (u64 __user *)arg; - enum rw_hint hint; - u64 h; + u64 hint;

switch (cmd) { case F_GET_RW_HINT: - h = inode->i_write_hint; - if (copy_to_user(argp, &h, sizeof(*argp))) + hint = inode->i_write_hint; + if (copy_to_user(argp, &hint, sizeof(*argp))) return -EFAULT; return 0; case F_SET_RW_HINT: - if (copy_from_user(&h, argp, sizeof(h))) + if (copy_from_user(&hint, argp, sizeof(hint))) return -EFAULT; - hint = (enum rw_hint) h; if (!rw_hint_valid(hint)) return -EINVAL;

From: Jens Axboe axboe@kernel.dk

[ Upstream commit 9fe3eaea4a3530ca34a8d8ff00b1848c528789ca ]

If we have a ton of notifications coming in, we can be looping in here for a long time. This can be problematic for various reasons, mostly because we can starve userspace. If the application is waiting on N events, then only re-run if we need more events.

Fixes: c0e0d6ba25f1 ("io_uring: add IORING_SETUP_DEFER_TASKRUN") Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin sashal@kernel.org --- io_uring/io_uring.c | 44 +++++++++++++++++++++++++++++--------------- 1 file changed, 29 insertions(+), 15 deletions(-)

diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c index e22f6bf837f9d..049a163d0fdd0 100644 --- a/io_uring/io_uring.c +++ b/io_uring/io_uring.c @@ -1363,7 +1363,20 @@ static void __cold io_move_task_work_from_local(struct io_ring_ctx *ctx) } }

-static int __io_run_local_work(struct io_ring_ctx *ctx, struct io_tw_state *ts) +static bool io_run_local_work_continue(struct io_ring_ctx *ctx, int events, + int min_events) +{ + if (llist_empty(&ctx->work_llist)) + return false; + if (events < min_events) + return true; + if (ctx->flags & IORING_SETUP_TASKRUN_FLAG) + atomic_or(IORING_SQ_TASKRUN, &ctx->rings->sq_flags); + return false; +} + +static int __io_run_local_work(struct io_ring_ctx *ctx, struct io_tw_state *ts, + int min_events) { struct llist_node *node; unsigned int loops = 0; @@ -1392,18 +1405,20 @@ static int __io_run_local_work(struct io_ring_ctx *ctx, struct io_tw_state *ts) } loops++;

- if (!llist_empty(&ctx->work_llist)) + if (io_run_local_work_continue(ctx, ret, min_events)) goto again; if (ts->locked) { io_submit_flush_completions(ctx); - if (!llist_empty(&ctx->work_llist)) + if (io_run_local_work_continue(ctx, ret, min_events)) goto again; } + trace_io_uring_local_work_run(ctx, ret, loops); return ret; }

-static inline int io_run_local_work_locked(struct io_ring_ctx *ctx) +static inline int io_run_local_work_locked(struct io_ring_ctx *ctx, + int min_events) { struct io_tw_state ts = { .locked = true, }; int ret; @@ -1411,20 +1426,20 @@ static inline int io_run_local_work_locked(struct io_ring_ctx *ctx) if (llist_empty(&ctx->work_llist)) return 0;

- ret = __io_run_local_work(ctx, &ts); + ret = __io_run_local_work(ctx, &ts, min_events); /* shouldn't happen! */ if (WARN_ON_ONCE(!ts.locked)) mutex_lock(&ctx->uring_lock); return ret; }

-static int io_run_local_work(struct io_ring_ctx *ctx) +static int io_run_local_work(struct io_ring_ctx *ctx, int min_events) { struct io_tw_state ts = {}; int ret;

ts.locked = mutex_trylock(&ctx->uring_lock); - ret = __io_run_local_work(ctx, &ts); + ret = __io_run_local_work(ctx, &ts, min_events); if (ts.locked) mutex_unlock(&ctx->uring_lock);

@@ -1620,7 +1635,7 @@ static int io_iopoll_check(struct io_ring_ctx *ctx, long min) io_task_work_pending(ctx)) { u32 tail = ctx->cached_cq_tail;

- (void) io_run_local_work_locked(ctx); + (void) io_run_local_work_locked(ctx, min);

if (task_work_pending(current) || wq_list_empty(&ctx->iopoll_list)) { @@ -2463,7 +2478,7 @@ int io_run_task_work_sig(struct io_ring_ctx *ctx) { if (!llist_empty(&ctx->work_llist)) { __set_current_state(TASK_RUNNING); - if (io_run_local_work(ctx) > 0) + if (io_run_local_work(ctx, INT_MAX) > 0) return 0; } if (io_run_task_work() > 0) @@ -2531,7 +2546,7 @@ static int io_cqring_wait(struct io_ring_ctx *ctx, int min_events, if (!io_allowed_run_tw(ctx)) return -EEXIST; if (!llist_empty(&ctx->work_llist)) - io_run_local_work(ctx); + io_run_local_work(ctx, min_events); io_run_task_work(); io_cqring_overflow_flush(ctx); /* if user messes with these they will just get an early return */ @@ -2569,11 +2584,10 @@ static int io_cqring_wait(struct io_ring_ctx *ctx, int min_events,

trace_io_uring_cqring_wait(ctx, min_events); do { + int nr_wait = (int) iowq.cq_tail - READ_ONCE(ctx->rings->cq.tail); unsigned long check_cq;

if (ctx->flags & IORING_SETUP_DEFER_TASKRUN) { - int nr_wait = (int) iowq.cq_tail - READ_ONCE(ctx->rings->cq.tail); - atomic_set(&ctx->cq_wait_nr, nr_wait); set_current_state(TASK_INTERRUPTIBLE); } else { @@ -2592,7 +2606,7 @@ static int io_cqring_wait(struct io_ring_ctx *ctx, int min_events, */ io_run_task_work(); if (!llist_empty(&ctx->work_llist)) - io_run_local_work(ctx); + io_run_local_work(ctx, nr_wait);

/* * Non-local task_work will be run on exit to userspace, but @@ -3283,7 +3297,7 @@ static __cold bool io_uring_try_cancel_requests(struct io_ring_ctx *ctx,

if ((ctx->flags & IORING_SETUP_DEFER_TASKRUN) && io_allowed_defer_tw_run(ctx)) - ret |= io_run_local_work(ctx) > 0; + ret |= io_run_local_work(ctx, INT_MAX) > 0; ret |= io_cancel_defer_files(ctx, task, cancel_all); mutex_lock(&ctx->uring_lock); ret |= io_poll_remove_all(ctx, task, cancel_all); @@ -3642,7 +3656,7 @@ SYSCALL_DEFINE6(io_uring_enter, unsigned int, fd, u32, to_submit, * it should handle ownership problems if any. */ if (ctx->flags & IORING_SETUP_DEFER_TASKRUN) - (void)io_run_local_work_locked(ctx); + (void)io_run_local_work_locked(ctx, min_complete); } mutex_unlock(&ctx->uring_lock); }

From: Miroslav Franc mfranc@suse.cz

[ Upstream commit c3116e62ddeff79cae342147753ce596f01fcf06 ]

Once the discipline is associated with the device, deleting the device takes care of decrementing the module's refcount. Doing it manually on this error path causes refcount to artificially decrease on each error while it should just stay the same.

Fixes: c020d722b110 ("s390/dasd: fix panic during offline processing") Signed-off-by: Miroslav Franc mfranc@suse.cz Signed-off-by: Jan Höppner hoeppner@linux.ibm.com Signed-off-by: Stefan Haberland sth@linux.ibm.com Link: https://lore.kernel.org/r/20240209124522.3697827-3-sth@linux.ibm.com Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/s390/block/dasd.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 96f4c94865846..6f97456798917 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -3528,12 +3528,11 @@ int dasd_generic_set_online(struct ccw_device *cdev, dasd_delete_device(device); return -EINVAL; } + device->base_discipline = base_discipline; if (!try_module_get(discipline->owner)) { - module_put(base_discipline->owner); dasd_delete_device(device); return -EINVAL; } - device->base_discipline = base_discipline; device->discipline = discipline;

/* check_device will allocate block device if necessary */ @@ -3541,8 +3540,6 @@ int dasd_generic_set_online(struct ccw_device *cdev, if (rc) { dev_warn(dev, "Setting the DASD online with discipline %s failed with rc=%i\n", discipline->name, rc); - module_put(discipline->owner); - module_put(base_discipline->owner); dasd_delete_device(device); return rc; }

From: Frederic Weisbecker frederic@kernel.org

[ Upstream commit e7539ffc9a770f36bacedcf0fbfb4bf2f244f4a5 ]

Just like is done for the kworker performing nodes initialization, gracefully handle the possible allocation failure of the RCU expedited grace period main kworker.

While at it perform a rename of the related checking functions to better reflect the expedited specifics.

Reviewed-by: Kalesh Singh kaleshsingh@google.com Fixes: 9621fbee44df ("rcu: Move expedited grace period (GP) work to RT kthread_worker") Signed-off-by: Frederic Weisbecker frederic@kernel.org Reviewed-by: Paul E. McKenney paulmck@kernel.org Signed-off-by: Boqun Feng boqun.feng@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/rcu/tree.c | 2 ++ kernel/rcu/tree_exp.h | 25 +++++++++++++++++++------ 2 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 2e8d4572e8620..8cf6a6fef7965 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -4671,6 +4671,7 @@ static void __init rcu_start_exp_gp_kworkers(void) rcu_exp_gp_kworker = kthread_create_worker(0, gp_kworker_name); if (IS_ERR_OR_NULL(rcu_exp_gp_kworker)) { pr_err("Failed to create %s!\n", gp_kworker_name); + rcu_exp_gp_kworker = NULL; return; }

@@ -4679,6 +4680,7 @@ static void __init rcu_start_exp_gp_kworkers(void) pr_err("Failed to create %s!\n", par_gp_kworker_name); rcu_exp_par_gp_kworker = NULL; kthread_destroy_worker(rcu_exp_gp_kworker); + rcu_exp_gp_kworker = NULL; return; }

diff --git a/kernel/rcu/tree_exp.h b/kernel/rcu/tree_exp.h index 6e87dc764f471..733b18077f5a0 100644 --- a/kernel/rcu/tree_exp.h +++ b/kernel/rcu/tree_exp.h @@ -428,7 +428,12 @@ static void sync_rcu_exp_select_node_cpus(struct kthread_work *wp) __sync_rcu_exp_select_node_cpus(rewp); }

-static inline bool rcu_gp_par_worker_started(void) +static inline bool rcu_exp_worker_started(void) +{ + return !!READ_ONCE(rcu_exp_gp_kworker); +} + +static inline bool rcu_exp_par_worker_started(void) { return !!READ_ONCE(rcu_exp_par_gp_kworker); } @@ -478,7 +483,12 @@ static void sync_rcu_exp_select_node_cpus(struct work_struct *wp) __sync_rcu_exp_select_node_cpus(rewp); }

-static inline bool rcu_gp_par_worker_started(void) +static inline bool rcu_exp_worker_started(void) +{ + return !!READ_ONCE(rcu_gp_wq); +} + +static inline bool rcu_exp_par_worker_started(void) { return !!READ_ONCE(rcu_par_gp_wq); } @@ -541,7 +551,7 @@ static void sync_rcu_exp_select_cpus(void) rnp->exp_need_flush = false; if (!READ_ONCE(rnp->expmask)) continue; /* Avoid early boot non-existent wq. */ - if (!rcu_gp_par_worker_started() || + if (!rcu_exp_par_worker_started() || rcu_scheduler_active != RCU_SCHEDULER_RUNNING || rcu_is_last_leaf_node(rnp)) { /* No worker started yet or last leaf, do direct call. */ @@ -952,7 +962,7 @@ static void rcu_exp_print_detail_task_stall_rnp(struct rcu_node *rnp) */ void synchronize_rcu_expedited(void) { - bool boottime = (rcu_scheduler_active == RCU_SCHEDULER_INIT); + bool use_worker; unsigned long flags; struct rcu_exp_work rew; struct rcu_node *rnp; @@ -963,6 +973,9 @@ void synchronize_rcu_expedited(void) lock_is_held(&rcu_sched_lock_map), "Illegal synchronize_rcu_expedited() in RCU read-side critical section");

+ use_worker = (rcu_scheduler_active != RCU_SCHEDULER_INIT) && + rcu_exp_worker_started(); + /* Is the state is such that the call is a grace period? */ if (rcu_blocking_is_gp()) { // Note well that this code runs with !PREEMPT && !SMP. @@ -992,7 +1005,7 @@ void synchronize_rcu_expedited(void) return; /* Someone else did our work for us. */

/* Ensure that load happens before action based on it. */ - if (unlikely(boottime)) { + if (unlikely(!use_worker)) { /* Direct call during scheduler init and early_initcalls(). */ rcu_exp_sel_wait_wake(s); } else { @@ -1010,7 +1023,7 @@ void synchronize_rcu_expedited(void) /* Let the next expedited grace period start. */ mutex_unlock(&rcu_state.exp_mutex);

- if (likely(!boottime)) + if (likely(use_worker)) synchronize_rcu_expedited_destroy_work(&rew); } EXPORT_SYMBOL_GPL(synchronize_rcu_expedited);

From: Arnd Bergmann arnd@arndb.de

[ Upstream commit ddb9fd7a544088ed70eccbb9f85e9cc9952131c1 ]

A while ago, we changed the way that select() and poll() preallocate a temporary buffer just under the size of the static warning limit of 1024 bytes, as clang was frequently going slightly above that limit.

The warnings have recently returned and I took another look. As it turns out, clang is not actually inherently worse at reserving stack space, it just happens to inline do_select() into core_sys_select(), while gcc never inlines it.

Annotate do_select() to never be inlined and in turn remove the special case for the allocation size. This should give the same behavior for both clang and gcc all the time and once more avoids those warnings.

Fixes: ad312f95d41c ("fs/select: avoid clang stack usage warning") Signed-off-by: Arnd Bergmann arnd@arndb.de Link: https://lore.kernel.org/r/20240216202352.2492798-1-arnd@kernel.org Reviewed-by: Kees Cook keescook@chromium.org Reviewed-by: Andi Kleen ak@linux.intel.com Reviewed-by: Jan Kara jack@suse.cz Signed-off-by: Christian Brauner brauner@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- fs/select.c | 2 +- include/linux/poll.h | 4 ---- 2 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/fs/select.c b/fs/select.c index 0ee55af1a55c2..d4d881d439dcd 100644 --- a/fs/select.c +++ b/fs/select.c @@ -476,7 +476,7 @@ static inline void wait_key_set(poll_table *wait, unsigned long in, wait->_key |= POLLOUT_SET; }

-static int do_select(int n, fd_set_bits *fds, struct timespec64 *end_time) +static noinline_for_stack int do_select(int n, fd_set_bits *fds, struct timespec64 *end_time) { ktime_t expire, *to = NULL; struct poll_wqueues table; diff --git a/include/linux/poll.h b/include/linux/poll.h index a9e0e1c2d1f2f..d1ea4f3714a84 100644 --- a/include/linux/poll.h +++ b/include/linux/poll.h @@ -14,11 +14,7 @@

/* ~832 bytes of stack space used max in sys_select/sys_poll before allocating additional memory. */ -#ifdef __clang__ -#define MAX_STACK_ALLOC 768 -#else #define MAX_STACK_ALLOC 832 -#endif #define FRONTEND_STACK_ALLOC 256 #define SELECT_STACK_ALLOC FRONTEND_STACK_ALLOC #define POLL_STACK_ALLOC FRONTEND_STACK_ALLOC

From: Amir Goldstein amir73il@gmail.com

[ Upstream commit c835110b588a750650988ca5000913c3c60d246b ]

Commit beae836e9c61 ("ovl: temporarily disable appending lowedirs") removed the ability to append lowerdirs with syntax lowerdir=":<path>". Remove leftover code and comments that are irrelevant with lowerdir append mode disabled.

Signed-off-by: Amir Goldstein amir73il@gmail.com Stable-dep-of: 2824083db76c ("ovl: Always reject mounting over case-insensitive directories") Signed-off-by: Sasha Levin sashal@kernel.org --- fs/overlayfs/params.c | 95 ++++++++----------------------------------- 1 file changed, 16 insertions(+), 79 deletions(-)

diff --git a/fs/overlayfs/params.c b/fs/overlayfs/params.c index f6ff23fd101c8..0059cc405159e 100644 --- a/fs/overlayfs/params.c +++ b/fs/overlayfs/params.c @@ -346,7 +346,7 @@ static void ovl_parse_param_drop_lowerdir(struct ovl_fs_context *ctx) /* * Parse lowerdir= mount option: * - * (1) lowerdir=/lower1:/lower2:/lower3::/data1::/data2 + * e.g.: lowerdir=/lower1:/lower2:/lower3::/data1::/data2 * Set "/lower1", "/lower2", and "/lower3" as lower layers and * "/data1" and "/data2" as data lower layers. Any existing lower * layers are replaced. @@ -356,9 +356,9 @@ static int ovl_parse_param_lowerdir(const char *name, struct fs_context *fc) int err; struct ovl_fs_context *ctx = fc->fs_private; struct ovl_fs_context_layer *l; - char *dup = NULL, *dup_iter; + char *dup = NULL, *iter; ssize_t nr_lower = 0, nr = 0, nr_data = 0; - bool append = false, data_layer = false; + bool data_layer = false;

/* * Ensure we're backwards compatible with mount(2) @@ -366,10 +366,10 @@ static int ovl_parse_param_lowerdir(const char *name, struct fs_context *fc) */

/* drop all existing lower layers */ - if (!*name) { - ovl_parse_param_drop_lowerdir(ctx); + ovl_parse_param_drop_lowerdir(ctx); + + if (!*name) return 0; - }

if (*name == ':') { pr_err("cannot append lower layer"); @@ -385,36 +385,11 @@ static int ovl_parse_param_lowerdir(const char *name, struct fs_context *fc) if (nr_lower < 0) goto out_err;

- if ((nr_lower > OVL_MAX_STACK) || - (append && (size_add(ctx->nr, nr_lower) > OVL_MAX_STACK))) { + if (nr_lower > OVL_MAX_STACK) { pr_err("too many lower directories, limit is %d\n", OVL_MAX_STACK); goto out_err; }

- if (!append) - ovl_parse_param_drop_lowerdir(ctx); - - /* - * (1) append - * - * We want nr <= nr_lower <= capacity We know nr > 0 and nr <= - * capacity. If nr == 0 this wouldn't be append. If nr + - * nr_lower is <= capacity then nr <= nr_lower <= capacity - * already holds. If nr + nr_lower exceeds capacity, we realloc. - * - * (2) replace - * - * Ensure we're backwards compatible with mount(2) which allows - * "lowerdir=/a:/b:/c,lowerdir=/d:/e:/f" causing the last - * specified lowerdir mount option to win. - * - * We want nr <= nr_lower <= capacity We know either (i) nr == 0 - * or (ii) nr > 0. We also know nr_lower > 0. The capacity - * could've been changed multiple times already so we only know - * nr <= capacity. If nr + nr_lower > capacity we realloc, - * otherwise nr <= nr_lower <= capacity holds already. - */ - nr_lower += ctx->nr; if (nr_lower > ctx->capacity) { err = -ENOMEM; l = krealloc_array(ctx->lower, nr_lower, sizeof(*ctx->lower), @@ -426,41 +401,17 @@ static int ovl_parse_param_lowerdir(const char *name, struct fs_context *fc) ctx->capacity = nr_lower; }

- /* - * (3) By (1) and (2) we know nr <= nr_lower <= capacity. - * (4) If ctx->nr == 0 => replace - * We have verified above that the lowerdir mount option - * isn't an append, i.e., the lowerdir mount option - * doesn't start with ":" or "::". - * (4.1) The lowerdir mount options only contains regular lower - * layers ":". - * => Nothing to verify. - * (4.2) The lowerdir mount options contains regular ":" and - * data "::" layers. - * => We need to verify that data lower layers "::" aren't - * followed by regular ":" lower layers - * (5) If ctx->nr > 0 => append - * We know that there's at least one regular layer - * otherwise we would've failed when parsing the previous - * lowerdir mount option. - * (5.1) The lowerdir mount option is a regular layer ":" append - * => We need to verify that no data layers have been - * specified before. - * (5.2) The lowerdir mount option is a data layer "::" append - * We know that there's at least one regular layer or - * other data layers. => There's nothing to verify. - */ - dup_iter = dup; - for (nr = ctx->nr; nr < nr_lower; nr++) { - l = &ctx->lower[nr]; + iter = dup; + l = ctx->lower; + for (nr = 0; nr < nr_lower; nr++, l++) { memset(l, 0, sizeof(*l));

- err = ovl_mount_dir(dup_iter, &l->path, false); + err = ovl_mount_dir(iter, &l->path, false); if (err) goto out_put;

err = -ENOMEM; - l->name = kstrdup(dup_iter, GFP_KERNEL_ACCOUNT); + l->name = kstrdup(iter, GFP_KERNEL_ACCOUNT); if (!l->name) goto out_put;

@@ -472,8 +423,8 @@ static int ovl_parse_param_lowerdir(const char *name, struct fs_context *fc) break;

err = -EINVAL; - dup_iter = strchr(dup_iter, '\0') + 1; - if (*dup_iter) { + iter = strchr(iter, '\0') + 1; + if (*iter) { /* * This is a regular layer so we require that * there are no data layers. @@ -489,7 +440,7 @@ static int ovl_parse_param_lowerdir(const char *name, struct fs_context *fc)

/* This is a data lower layer. */ data_layer = true; - dup_iter++; + iter++; } ctx->nr = nr_lower; ctx->nr_data += nr_data; @@ -497,21 +448,7 @@ static int ovl_parse_param_lowerdir(const char *name, struct fs_context *fc) return 0;

out_put: - /* - * We know nr >= ctx->nr < nr_lower. If we failed somewhere - * we want to undo until nr == ctx->nr. This is correct for - * both ctx->nr == 0 and ctx->nr > 0. - */ - for (; nr >= ctx->nr; nr--) { - l = &ctx->lower[nr]; - kfree(l->name); - l->name = NULL; - path_put(&l->path); - - /* don't overflow */ - if (nr == 0) - break; - } + ovl_parse_param_drop_lowerdir(ctx);

out_err: kfree(dup);

From: Amir Goldstein amir73il@gmail.com

[ Upstream commit 819829f0319a759e8a6ccb7e4f1113f3f9f07aa3 ]

In preparation for new mount options to add lowerdirs one by one, generalize ovl_parse_param_upperdir() into helper ovl_parse_layer() that will be used for parsing a single lower layers.

Suggested-by: Miklos Szeredi miklos@szeredi.hu Link: https://lore.kernel.org/r/CAJfpegt7VC94KkRtb1dfHG8+4OzwPBLYqhtc8=QFUxpFJE+=R... Signed-off-by: Amir Goldstein amir73il@gmail.com Stable-dep-of: 2824083db76c ("ovl: Always reject mounting over case-insensitive directories") Signed-off-by: Sasha Levin sashal@kernel.org --- fs/overlayfs/params.c | 121 +++++++++++++++++++++++------------------- 1 file changed, 67 insertions(+), 54 deletions(-)

diff --git a/fs/overlayfs/params.c b/fs/overlayfs/params.c index 0bf754a69e919..88725982b6dd3 100644 --- a/fs/overlayfs/params.c +++ b/fs/overlayfs/params.c @@ -43,7 +43,7 @@ module_param_named(metacopy, ovl_metacopy_def, bool, 0644); MODULE_PARM_DESC(metacopy, "Default to on or off for the metadata only copy up feature");

-enum { +enum ovl_opt { Opt_lowerdir, Opt_upperdir, Opt_workdir, @@ -238,19 +238,8 @@ static int ovl_mount_dir_noesc(const char *name, struct path *path) pr_err("failed to resolve '%s': %i\n", name, err); goto out; } - err = -EINVAL; - if (ovl_dentry_weird(path->dentry)) { - pr_err("filesystem on '%s' not supported\n", name); - goto out_put; - } - if (!d_is_dir(path->dentry)) { - pr_err("'%s' not a directory\n", name); - goto out_put; - } return 0;

-out_put: - path_put_init(path); out: return err; } @@ -268,7 +257,7 @@ static void ovl_unescape(char *s) } }

-static int ovl_mount_dir(const char *name, struct path *path, bool upper) +static int ovl_mount_dir(const char *name, struct path *path) { int err = -ENOMEM; char *tmp = kstrdup(name, GFP_KERNEL); @@ -276,60 +265,82 @@ static int ovl_mount_dir(const char *name, struct path *path, bool upper) if (tmp) { ovl_unescape(tmp); err = ovl_mount_dir_noesc(tmp, path); - - if (!err && upper && path->dentry->d_flags & DCACHE_OP_REAL) { - pr_err("filesystem on '%s' not supported as upperdir\n", - tmp); - path_put_init(path); - err = -EINVAL; - } kfree(tmp); } return err; }

-static int ovl_parse_param_upperdir(const char *name, struct fs_context *fc, - bool workdir) +static int ovl_mount_dir_check(struct fs_context *fc, const struct path *path, + enum ovl_opt layer, const char *name, bool upper) { - int err; - struct ovl_fs *ofs = fc->s_fs_info; - struct ovl_config *config = &ofs->config; - struct ovl_fs_context *ctx = fc->fs_private; - struct path path; - char *dup; + if (ovl_dentry_weird(path->dentry)) + return invalfc(fc, "filesystem on %s not supported", name);

- err = ovl_mount_dir(name, &path, true); - if (err) - return err; + if (!d_is_dir(path->dentry)) + return invalfc(fc, "%s is not a directory", name);

/* * Check whether upper path is read-only here to report failures * early. Don't forget to recheck when the superblock is created * as the mount attributes could change. */ - if (__mnt_is_readonly(path.mnt)) { - path_put(&path); - return -EINVAL; + if (upper) { + if (path->dentry->d_flags & DCACHE_OP_REAL) + return invalfc(fc, "filesystem on %s not supported as upperdir", name); + if (__mnt_is_readonly(path->mnt)) + return invalfc(fc, "filesystem on %s is read-only", name); } + return 0; +}

- dup = kstrdup(name, GFP_KERNEL); - if (!dup) { - path_put(&path); - return -ENOMEM; - } +static void ovl_add_layer(struct fs_context *fc, enum ovl_opt layer, + struct path *path, char **pname) +{ + struct ovl_fs *ofs = fc->s_fs_info; + struct ovl_config *config = &ofs->config; + struct ovl_fs_context *ctx = fc->fs_private;

- if (workdir) { - kfree(config->workdir); - config->workdir = dup; - path_put(&ctx->work); - ctx->work = path; - } else { - kfree(config->upperdir); - config->upperdir = dup; - path_put(&ctx->upper); - ctx->upper = path; + switch (layer) { + case Opt_workdir: + swap(config->workdir, *pname); + swap(ctx->work, *path); + break; + case Opt_upperdir: + swap(config->upperdir, *pname); + swap(ctx->upper, *path); + break; + default: + WARN_ON(1); } - return 0; +} + +static int ovl_parse_layer(struct fs_context *fc, struct fs_parameter *param, + enum ovl_opt layer) +{ + char *name = kstrdup(param->string, GFP_KERNEL); + bool upper = (layer == Opt_upperdir || layer == Opt_workdir); + struct path path; + int err; + + if (!name) + return -ENOMEM; + + err = ovl_mount_dir(name, &path); + if (err) + goto out_free; + + err = ovl_mount_dir_check(fc, &path, layer, name, upper); + if (err) + goto out_put; + + /* Store the user provided path string in ctx to show in mountinfo */ + ovl_add_layer(fc, layer, &path, &name); + +out_put: + path_put(&path); +out_free: + kfree(name); + return err; }

static void ovl_reset_lowerdirs(struct ovl_fs_context *ctx) @@ -417,7 +428,11 @@ static int ovl_parse_param_lowerdir(const char *name, struct fs_context *fc) for (nr = 0; nr < nr_lower; nr++, l++) { memset(l, 0, sizeof(*l));

- err = ovl_mount_dir(iter, &l->path, false); + err = ovl_mount_dir(iter, &l->path); + if (err) + goto out_put; + + err = ovl_mount_dir_check(fc, &l->path, Opt_lowerdir, iter, false); if (err) goto out_put;

@@ -505,10 +520,8 @@ static int ovl_parse_param(struct fs_context *fc, struct fs_parameter *param) err = ovl_parse_param_lowerdir(param->string, fc); break; case Opt_upperdir: - fallthrough; case Opt_workdir: - err = ovl_parse_param_upperdir(param->string, fc, - (Opt_workdir == opt)); + err = ovl_parse_layer(fc, param, opt); break; case Opt_default_permissions: config->default_permissions = true;

From: Gabriel Krisman Bertazi krisman@suse.de

[ Upstream commit 2824083db76cb9d4b7910607b367e93b02912865 ]

overlayfs relies on the filesystem setting DCACHE_OP_HASH or DCACHE_OP_COMPARE to reject mounting over case-insensitive directories.

Since commit bb9cd9106b22 ("fscrypt: Have filesystems handle their d_ops"), we set ->d_op through a hook in ->d_lookup, which means the root dentry won't have them, causing the mount to accidentally succeed.

In v6.7-rc7, the following sequence will succeed to mount, but any dentry other than the root dentry will be a "weird" dentry to ovl and fail with EREMOTE.

mkfs.ext4 -O casefold lower.img mount -O loop lower.img lower mount -t overlay -o lowerdir=lower,upperdir=upper,workdir=work ovl /mnt

Mounting on a subdirectory fails, as expected, because DCACHE_OP_HASH and DCACHE_OP_COMPARE are properly set by ->lookup.

Fix by explicitly rejecting superblocks that allow case-insensitive dentries. Yes, this will be solved when we move d_op configuration back to ->s_d_op. Yet, we better have an explicit fix to avoid messing up again.

While there, re-sort the entries to have more descriptive error messages first.

Fixes: bb9cd9106b22 ("fscrypt: Have filesystems handle their d_ops") Acked-by: Amir Goldstein amir73il@gmail.com Reviewed-by: Eric Biggers ebiggers@google.com Link: https://lore.kernel.org/r/20240221171412.10710-2-krisman@suse.de Signed-off-by: Gabriel Krisman Bertazi krisman@suse.de Signed-off-by: Sasha Levin sashal@kernel.org --- fs/overlayfs/params.c | 14 +++++++++++--- include/linux/fs.h | 9 +++++++++ 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/fs/overlayfs/params.c b/fs/overlayfs/params.c index ddab9ea267d12..ad3593a41fb5f 100644 --- a/fs/overlayfs/params.c +++ b/fs/overlayfs/params.c @@ -280,12 +280,20 @@ static int ovl_mount_dir_check(struct fs_context *fc, const struct path *path, { struct ovl_fs_context *ctx = fc->fs_private;

- if (ovl_dentry_weird(path->dentry)) - return invalfc(fc, "filesystem on %s not supported", name); - if (!d_is_dir(path->dentry)) return invalfc(fc, "%s is not a directory", name);

+ /* + * Root dentries of case-insensitive capable filesystems might + * not have the dentry operations set, but still be incompatible + * with overlayfs. Check explicitly to prevent post-mount + * failures. + */ + if (sb_has_encoding(path->mnt->mnt_sb)) + return invalfc(fc, "case-insensitive capable filesystem on %s not supported", name); + + if (ovl_dentry_weird(path->dentry)) + return invalfc(fc, "filesystem on %s not supported", name);

/* * Check whether upper path is read-only here to report failures diff --git a/include/linux/fs.h b/include/linux/fs.h index 6e558264b4ab1..62102f8697946 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -3195,6 +3195,15 @@ extern int generic_check_addressable(unsigned, u64);

extern void generic_set_encrypted_ci_d_ops(struct dentry *dentry);

+static inline bool sb_has_encoding(const struct super_block *sb) +{ +#if IS_ENABLED(CONFIG_UNICODE) + return !!sb->s_encoding; +#else + return false; +#endif +} + int may_setattr(struct mnt_idmap *idmap, struct inode *inode, unsigned int ia_valid); int setattr_prepare(struct mnt_idmap *, struct dentry *, struct iattr *);

From: David Gow davidgow@google.com

[ Upstream commit d2733a026fc7247ba42d7a8e1b737cf14bf1df21 ]

The correct format specifier for p - n (both p and n are pointers) is %td, as the type should be ptrdiff_t.

This was discovered by annotating KUnit assertion macros with gcc's printf specifier, but note that gcc incorrectly suggested a %d or %ld specifier (depending on the pointer size of the architecture being built).

Fixes: 0ea09083116d ("lib/cmdline: Allow get_options() to take 0 to validate the input") Signed-off-by: David Gow davidgow@google.com Tested-by: Guenter Roeck linux@roeck-us.net Reviewed-by: Daniel Latypov dlatypov@google.com Signed-off-by: Shuah Khan skhan@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- lib/cmdline_kunit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/cmdline_kunit.c b/lib/cmdline_kunit.c index d4572dbc91453..705b82736be08 100644 --- a/lib/cmdline_kunit.c +++ b/lib/cmdline_kunit.c @@ -124,7 +124,7 @@ static void cmdline_do_one_range_test(struct kunit *test, const char *in, n, e[0], r[0]);

p = memchr_inv(&r[1], 0, sizeof(r) - sizeof(r[0])); - KUNIT_EXPECT_PTR_EQ_MSG(test, p, NULL, "in test %u at %u out of bound", n, p - r); + KUNIT_EXPECT_PTR_EQ_MSG(test, p, NULL, "in test %u at %td out of bound", n, p - r); }

static void cmdline_test_range(struct kunit *test)

From: David Gow davidgow@google.com

[ Upstream commit 133e267ef4a26d19c93996a874714e9f3f8c70aa ]

'days' is a s64 (from div_s64), and so should use a %lld specifier.

This was found by extending KUnit's assertion macros to use gcc's __printf attribute.

Fixes: 276010551664 ("time: Improve performance of time64_to_tm()") Signed-off-by: David Gow davidgow@google.com Tested-by: Guenter Roeck linux@roeck-us.net Reviewed-by: Justin Stitt justinstitt@google.com Signed-off-by: Shuah Khan skhan@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/time/time_test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/time/time_test.c b/kernel/time/time_test.c index ca058c8af6baf..3e5d422dd15cb 100644 --- a/kernel/time/time_test.c +++ b/kernel/time/time_test.c @@ -73,7 +73,7 @@ static void time64_to_tm_test_date_range(struct kunit *test)

days = div_s64(secs, 86400);

- #define FAIL_MSG "%05ld/%02d/%02d (%2d) : %ld", \ + #define FAIL_MSG "%05ld/%02d/%02d (%2d) : %lld", \ year, month, mdday, yday, days

KUNIT_ASSERT_EQ_MSG(test, year - 1900, result.tm_year, FAIL_MSG);

From: Jens Axboe axboe@kernel.dk

[ Upstream commit 52307ac4f2b507f60bae6df5be938d35e199c688 ]

For recvmsg, we roll our own since we support buffer selections. This isn't the case for sendmsg right now, but in preparation for doing so, make the recvmsg copy helpers generic so we can call them from the sendmsg side as well.

Signed-off-by: Jens Axboe axboe@kernel.dk Stable-dep-of: 8ede3db5061b ("io_uring/net: fix overflow check in io_recvmsg_mshot_prep()") Signed-off-by: Sasha Levin sashal@kernel.org --- io_uring/net.c | 271 ++++++++++++++++++++++++++----------------------- 1 file changed, 142 insertions(+), 129 deletions(-)

diff --git a/io_uring/net.c b/io_uring/net.c index 161622029147c..ef495e2aac2bc 100644 --- a/io_uring/net.c +++ b/io_uring/net.c @@ -204,16 +204,150 @@ static int io_setup_async_msg(struct io_kiocb *req, return -EAGAIN; }

+static bool io_recvmsg_multishot_overflow(struct io_async_msghdr *iomsg) +{ + int hdr; + + if (iomsg->namelen < 0) + return true; + if (check_add_overflow((int)sizeof(struct io_uring_recvmsg_out), + iomsg->namelen, &hdr)) + return true; + if (check_add_overflow(hdr, (int)iomsg->controllen, &hdr)) + return true; + + return false; +} + +#ifdef CONFIG_COMPAT +static int __io_compat_msg_copy_hdr(struct io_kiocb *req, + struct io_async_msghdr *iomsg, + struct sockaddr __user **addr, int ddir) +{ + struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg); + struct compat_msghdr msg; + struct compat_iovec __user *uiov; + int ret; + + if (copy_from_user(&msg, sr->umsg_compat, sizeof(msg))) + return -EFAULT; + + ret = __get_compat_msghdr(&iomsg->msg, &msg, addr); + if (ret) + return ret; + + uiov = compat_ptr(msg.msg_iov); + if (req->flags & REQ_F_BUFFER_SELECT) { + compat_ssize_t clen; + + iomsg->free_iov = NULL; + if (msg.msg_iovlen == 0) { + sr->len = 0; + } else if (msg.msg_iovlen > 1) { + return -EINVAL; + } else { + if (!access_ok(uiov, sizeof(*uiov))) + return -EFAULT; + if (__get_user(clen, &uiov->iov_len)) + return -EFAULT; + if (clen < 0) + return -EINVAL; + sr->len = clen; + } + + if (ddir == ITER_DEST && req->flags & REQ_F_APOLL_MULTISHOT) { + iomsg->namelen = msg.msg_namelen; + iomsg->controllen = msg.msg_controllen; + if (io_recvmsg_multishot_overflow(iomsg)) + return -EOVERFLOW; + } + + return 0; + } + + iomsg->free_iov = iomsg->fast_iov; + ret = __import_iovec(ddir, (struct iovec __user *)uiov, msg.msg_iovlen, + UIO_FASTIOV, &iomsg->free_iov, + &iomsg->msg.msg_iter, true); + if (unlikely(ret < 0)) + return ret; + + return 0; +} +#endif + +static int __io_msg_copy_hdr(struct io_kiocb *req, struct io_async_msghdr *iomsg, + struct sockaddr __user **addr, int ddir) +{ + struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg); + struct user_msghdr msg; + int ret; + + if (copy_from_user(&msg, sr->umsg, sizeof(*sr->umsg))) + return -EFAULT; + + ret = __copy_msghdr(&iomsg->msg, &msg, addr); + if (ret) + return ret; + + if (req->flags & REQ_F_BUFFER_SELECT) { + if (msg.msg_iovlen == 0) { + sr->len = iomsg->fast_iov[0].iov_len = 0; + iomsg->fast_iov[0].iov_base = NULL; + iomsg->free_iov = NULL; + } else if (msg.msg_iovlen > 1) { + return -EINVAL; + } else { + if (copy_from_user(iomsg->fast_iov, msg.msg_iov, + sizeof(*msg.msg_iov))) + return -EFAULT; + sr->len = iomsg->fast_iov[0].iov_len; + iomsg->free_iov = NULL; + } + + if (ddir == ITER_DEST && req->flags & REQ_F_APOLL_MULTISHOT) { + iomsg->namelen = msg.msg_namelen; + iomsg->controllen = msg.msg_controllen; + if (io_recvmsg_multishot_overflow(iomsg)) + return -EOVERFLOW; + } + + return 0; + } + + iomsg->free_iov = iomsg->fast_iov; + ret = __import_iovec(ddir, msg.msg_iov, msg.msg_iovlen, UIO_FASTIOV, + &iomsg->free_iov, &iomsg->msg.msg_iter, false); + if (unlikely(ret < 0)) + return ret; + + return 0; +} + +static int io_msg_copy_hdr(struct io_kiocb *req, struct io_async_msghdr *iomsg, + struct sockaddr __user **addr, int ddir) +{ + iomsg->msg.msg_name = &iomsg->addr; + iomsg->msg.msg_iter.nr_segs = 0; + +#ifdef CONFIG_COMPAT + if (req->ctx->compat) + return __io_compat_msg_copy_hdr(req, iomsg, addr, ddir); +#endif + + return __io_msg_copy_hdr(req, iomsg, addr, ddir); +} + static int io_sendmsg_copy_hdr(struct io_kiocb *req, struct io_async_msghdr *iomsg) { struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg); int ret;

- iomsg->msg.msg_name = &iomsg->addr; - iomsg->free_iov = iomsg->fast_iov; - ret = sendmsg_copy_msghdr(&iomsg->msg, sr->umsg, sr->msg_flags, - &iomsg->free_iov); + ret = io_msg_copy_hdr(req, iomsg, NULL, ITER_SOURCE); + if (ret) + return ret; + /* save msg_control as sys_sendmsg() overwrites it */ sr->msg_control = iomsg->msg.msg_control_user; return ret; @@ -435,142 +569,21 @@ int io_send(struct io_kiocb *req, unsigned int issue_flags) return IOU_OK; }

-static bool io_recvmsg_multishot_overflow(struct io_async_msghdr *iomsg) -{ - int hdr; - - if (iomsg->namelen < 0) - return true; - if (check_add_overflow((int)sizeof(struct io_uring_recvmsg_out), - iomsg->namelen, &hdr)) - return true; - if (check_add_overflow(hdr, (int)iomsg->controllen, &hdr)) - return true; - - return false; -} - -static int __io_recvmsg_copy_hdr(struct io_kiocb *req, - struct io_async_msghdr *iomsg) -{ - struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg); - struct user_msghdr msg; - int ret; - - if (copy_from_user(&msg, sr->umsg, sizeof(*sr->umsg))) - return -EFAULT; - - ret = __copy_msghdr(&iomsg->msg, &msg, &iomsg->uaddr); - if (ret) - return ret; - - if (req->flags & REQ_F_BUFFER_SELECT) { - if (msg.msg_iovlen == 0) { - sr->len = iomsg->fast_iov[0].iov_len = 0; - iomsg->fast_iov[0].iov_base = NULL; - iomsg->free_iov = NULL; - } else if (msg.msg_iovlen > 1) { - return -EINVAL; - } else { - if (copy_from_user(iomsg->fast_iov, msg.msg_iov, sizeof(*msg.msg_iov))) - return -EFAULT; - sr->len = iomsg->fast_iov[0].iov_len; - iomsg->free_iov = NULL; - } - - if (req->flags & REQ_F_APOLL_MULTISHOT) { - iomsg->namelen = msg.msg_namelen; - iomsg->controllen = msg.msg_controllen; - if (io_recvmsg_multishot_overflow(iomsg)) - return -EOVERFLOW; - } - } else { - iomsg->free_iov = iomsg->fast_iov; - ret = __import_iovec(ITER_DEST, msg.msg_iov, msg.msg_iovlen, UIO_FASTIOV, - &iomsg->free_iov, &iomsg->msg.msg_iter, - false); - if (ret > 0) - ret = 0; - } - - return ret; -} - -#ifdef CONFIG_COMPAT -static int __io_compat_recvmsg_copy_hdr(struct io_kiocb *req, - struct io_async_msghdr *iomsg) -{ - struct io_sr_msg *sr = io_kiocb_to_cmd(req, struct io_sr_msg); - struct compat_msghdr msg; - struct compat_iovec __user *uiov; - int ret; - - if (copy_from_user(&msg, sr->umsg_compat, sizeof(msg))) - return -EFAULT; - - ret = __get_compat_msghdr(&iomsg->msg, &msg, &iomsg->uaddr); - if (ret) - return ret; - - uiov = compat_ptr(msg.msg_iov); - if (req->flags & REQ_F_BUFFER_SELECT) { - compat_ssize_t clen; - - iomsg->free_iov = NULL; - if (msg.msg_iovlen == 0) { - sr->len = 0; - } else if (msg.msg_iovlen > 1) { - return -EINVAL; - } else { - if (!access_ok(uiov, sizeof(*uiov))) - return -EFAULT; - if (__get_user(clen, &uiov->iov_len)) - return -EFAULT; - if (clen < 0) - return -EINVAL; - sr->len = clen; - } - - if (req->flags & REQ_F_APOLL_MULTISHOT) { - iomsg->namelen = msg.msg_namelen; - iomsg->controllen = msg.msg_controllen; - if (io_recvmsg_multishot_overflow(iomsg)) - return -EOVERFLOW; - } - } else { - iomsg->free_iov = iomsg->fast_iov; - ret = __import_iovec(ITER_DEST, (struct iovec __user *)uiov, msg.msg_iovlen, - UIO_FASTIOV, &iomsg->free_iov, - &iomsg->msg.msg_iter, true); - if (ret < 0) - return ret; - } - - return 0; -} -#endif - static int io_recvmsg_copy_hdr(struct io_kiocb *req, struct io_async_msghdr *iomsg) { - iomsg->msg.msg_name = &iomsg->addr; - iomsg->msg.msg_iter.nr_segs = 0; - -#ifdef CONFIG_COMPAT - if (req->ctx->compat) - return __io_compat_recvmsg_copy_hdr(req, iomsg); -#endif - - return __io_recvmsg_copy_hdr(req, iomsg); + return io_msg_copy_hdr(req, iomsg, &iomsg->uaddr, ITER_DEST); }

int io_recvmsg_prep_async(struct io_kiocb *req) { + struct io_async_msghdr *iomsg; int ret;

if (!io_msg_alloc_async_prep(req)) return -ENOMEM; - ret = io_recvmsg_copy_hdr(req, req->async_data); + iomsg = req->async_data; + ret = io_recvmsg_copy_hdr(req, iomsg); if (!ret) req->flags |= REQ_F_NEED_CLEANUP; return ret;

From: Dan Carpenter dan.carpenter@linaro.org

[ Upstream commit 8ede3db5061bb1fe28e2c9683329aafa89d2b1b4 ]

The "controllen" variable is type size_t (unsigned long). Casting it to int could lead to an integer underflow.

The check_add_overflow() function considers the type of the destination which is type int. If we add two positive values and the result cannot fit in an integer then that's counted as an overflow.

However, if we cast "controllen" to an int and it turns negative, then negative values *can* fit into an int type so there is no overflow.

Good: 100 + (unsigned long)-4 = 96 <-- overflow Bad: 100 + (int)-4 = 96 <-- no overflow

I deleted the cast of the sizeof() as well. That's not a bug but the cast is unnecessary.

Fixes: 9b0fc3c054ff ("io_uring: fix types in io_recvmsg_multishot_overflow") Signed-off-by: Dan Carpenter dan.carpenter@linaro.org Link: https://lore.kernel.org/r/138bd2e2-ede8-4bcc-aa7b-f3d9de167a37@moroto.mounta... Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin sashal@kernel.org --- io_uring/net.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/io_uring/net.c b/io_uring/net.c index 1d9bfde71809a..058e04ea68c04 100644 --- a/io_uring/net.c +++ b/io_uring/net.c @@ -544,10 +544,10 @@ static int io_recvmsg_mshot_prep(struct io_kiocb *req,

if (unlikely(namelen < 0)) return -EOVERFLOW; - if (check_add_overflow((int)sizeof(struct io_uring_recvmsg_out), + if (check_add_overflow(sizeof(struct io_uring_recvmsg_out), namelen, &hdr)) return -EOVERFLOW; - if (check_add_overflow(hdr, (int)controllen, &hdr)) + if (check_add_overflow(hdr, controllen, &hdr)) return -EOVERFLOW;

iomsg->namelen = namelen;

From: Michael Roth michael.roth@amd.com

[ Upstream commit 8e5647a723c49d73b9f108a8bb38e8c29d3948ea ]

On 64-bit platforms, the pfn_to_kaddr() macro requires that the input value is 64 bits in order to ensure that valid address bits don't get lost when shifting that input by PAGE_SHIFT to calculate the physical address to provide a virtual address for.

One such example is in pvalidate_pages() (used by SEV-SNP guests), where the GFN in the struct used for page-state change requests is a 40-bit bit-field, so attempts to pass this GFN field directly into pfn_to_kaddr() ends up causing guest crashes when dealing with addresses above the 1TB range due to the above.

Fix this issue with SEV-SNP guests, as well as any similar cases that might cause issues in current/future code, by using an inline function, instead of a macro, so that the input is implicitly cast to the expected 64-bit input type prior to performing the shift operation.

While it might be argued that the issue is on the caller side, other archs/macros have taken similar approaches to deal with instances like this, such as ARM explicitly casting the input to phys_addr_t:

e48866647b48 ("ARM: 8396/1: use phys_addr_t in pfn_to_kaddr()")

A C inline function is even better though.

[ mingo: Refined the changelog some more & added __always_inline. ]

Fixes: 6c3211796326 ("x86/sev: Add SNP-specific unaccepted memory support") Suggested-by: Dave Hansen dave.hansen@intel.com Suggested-by: H. Peter Anvin hpa@zytor.com Signed-off-by: Michael Roth michael.roth@amd.com Signed-off-by: Ingo Molnar mingo@kernel.org Link: https://lore.kernel.org/r/20231122163700.400507-1-michael.roth@amd.com Cc: Andy Lutomirski luto@kernel.org Cc: Peter Zijlstra peterz@infradead.org Cc: Rik van Riel riel@surriel.com Cc: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/x86/include/asm/page.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/page.h b/arch/x86/include/asm/page.h index d18e5c332cb9f..1b93ff80b43bc 100644 --- a/arch/x86/include/asm/page.h +++ b/arch/x86/include/asm/page.h @@ -66,10 +66,14 @@ static inline void copy_user_page(void *to, void *from, unsigned long vaddr, * virt_addr_valid(kaddr) returns true. */ #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) -#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) extern bool __virt_addr_valid(unsigned long kaddr); #define virt_addr_valid(kaddr) __virt_addr_valid((unsigned long) (kaddr))

+static __always_inline void *pfn_to_kaddr(unsigned long pfn) +{ + return __va(pfn << PAGE_SHIFT); +} + static __always_inline u64 __canonical_address(u64 vaddr, u8 vaddr_bits) { return ((s64)vaddr << (64 - vaddr_bits)) >> (64 - vaddr_bits);

From: Babu Moger babu.moger@amd.com

[ Upstream commit 54e35eb8611cce5550d3d7689679b1a91c864f28 ]

If the BMEC (Bandwidth Monitoring Event Configuration) feature is supported, the bandwidth events can be configured. The maximum supported bandwidth bitmask can be read from CPUID:

CPUID_Fn80000020_ECX_x03 [Platform QoS Monitoring Bandwidth Event Configuration] Bits Description 31:7 Reserved 6:0 Identifies the bandwidth sources that can be tracked.

While at it, move the mask checking to mon_config_write() before iterating over all the domains. Also, print the valid bitmask when the user tries to configure invalid event configuration value.

The CPUID details are documented in the Processor Programming Reference (PPR) Vol 1.1 for AMD Family 19h Model 11h B1 - 55901 Rev 0.25 in the Link tag.

Fixes: dc2a3e857981 ("x86/resctrl: Add interface to read mbm_total_bytes_config") Signed-off-by: Babu Moger babu.moger@amd.com Signed-off-by: Borislav Petkov (AMD) bp@alien8.de Reviewed-by: Reinette Chatre reinette.chatre@intel.com Link: https://bugzilla.kernel.org/show_bug.cgi?id=206537 Link: https://lore.kernel.org/r/669896fa512c7451319fa5ca2fdb6f7e015b5635.170535914... Signed-off-by: Sasha Levin sashal@kernel.org --- arch/x86/kernel/cpu/resctrl/internal.h | 3 +++ arch/x86/kernel/cpu/resctrl/monitor.c | 6 ++++++ arch/x86/kernel/cpu/resctrl/rdtgroup.c | 14 ++++++++------ 3 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/arch/x86/kernel/cpu/resctrl/internal.h b/arch/x86/kernel/cpu/resctrl/internal.h index 81d90f1a8ce58..40b69b3fc8728 100644 --- a/arch/x86/kernel/cpu/resctrl/internal.h +++ b/arch/x86/kernel/cpu/resctrl/internal.h @@ -394,6 +394,8 @@ struct rdt_parse_data { * @msr_update: Function pointer to update QOS MSRs * @mon_scale: cqm counter * mon_scale = occupancy in bytes * @mbm_width: Monitor width, to detect and correct for overflow. + * @mbm_cfg_mask: Bandwidth sources that can be tracked when Bandwidth + * Monitoring Event Configuration (BMEC) is supported. * @cdp_enabled: CDP state of this resource * * Members of this structure are either private to the architecture @@ -408,6 +410,7 @@ struct rdt_hw_resource { struct rdt_resource *r); unsigned int mon_scale; unsigned int mbm_width; + unsigned int mbm_cfg_mask; bool cdp_enabled; };

diff --git a/arch/x86/kernel/cpu/resctrl/monitor.c b/arch/x86/kernel/cpu/resctrl/monitor.c index f136ac046851c..acca577e2b066 100644 --- a/arch/x86/kernel/cpu/resctrl/monitor.c +++ b/arch/x86/kernel/cpu/resctrl/monitor.c @@ -813,6 +813,12 @@ int __init rdt_get_mon_l3_config(struct rdt_resource *r) return ret;

if (rdt_cpu_has(X86_FEATURE_BMEC)) { + u32 eax, ebx, ecx, edx; + + /* Detect list of bandwidth sources that can be tracked */ + cpuid_count(0x80000020, 3, &eax, &ebx, &ecx, &edx); + hw_res->mbm_cfg_mask = ecx & MAX_EVT_CONFIG_BITS; + if (rdt_cpu_has(X86_FEATURE_CQM_MBM_TOTAL)) { mbm_total_event.configurable = true; mbm_config_rftype_init("mbm_total_bytes_config"); diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c index 725344048f85d..d82d5de183b10 100644 --- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c +++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c @@ -1553,12 +1553,6 @@ static int mbm_config_write_domain(struct rdt_resource *r, struct mon_config_info mon_info = {0}; int ret = 0;

- /* mon_config cannot be more than the supported set of events */ - if (val > MAX_EVT_CONFIG_BITS) { - rdt_last_cmd_puts("Invalid event configuration\n"); - return -EINVAL; - } - /* * Read the current config value first. If both are the same then * no need to write it again. @@ -1596,6 +1590,7 @@ static int mbm_config_write_domain(struct rdt_resource *r,

static int mon_config_write(struct rdt_resource *r, char *tok, u32 evtid) { + struct rdt_hw_resource *hw_res = resctrl_to_arch_res(r); char *dom_str = NULL, *id_str; unsigned long dom_id, val; struct rdt_domain *d; @@ -1619,6 +1614,13 @@ static int mon_config_write(struct rdt_resource *r, char *tok, u32 evtid) return -EINVAL; }

+ /* Value from user cannot be more than the supported set of events */ + if ((val & hw_res->mbm_cfg_mask) != val) { + rdt_last_cmd_printf("Invalid event configuration: max valid mask is 0x%02x\n", + hw_res->mbm_cfg_mask); + return -EINVAL; + } + list_for_each_entry(d, &r->domains, list) { if (d->id == dom_id) { ret = mbm_config_write_domain(r, d, evtid, val);

From: Ard Biesheuvel ardb@kernel.org

[ Upstream commit e814b59e6c2b11f5a3d007b2e61f7d550c354c3a ]

Commit

cbebd68f59f0 ("x86/mm: Fix use of uninitialized buffer in sme_enable()")

'fixed' an issue in sme_enable() detected by static analysis, and broke the common case in the process.

cmdline_find_option() will return < 0 on an error, or when the command line argument does not appear at all. In this particular case, the latter is not an error condition, and so the early exit is wrong.

Instead, without mem_encrypt= on the command line, the compile time default should be honoured, which could be to enable memory encryption, and this is currently broken.

Fix it by setting sme_me_mask to a preliminary value based on the compile time default, and only omitting the command line argument test when cmdline_find_option() returns an error.

[ bp: Drop active_by_default while at it. ]

Fixes: cbebd68f59f0 ("x86/mm: Fix use of uninitialized buffer in sme_enable()") Signed-off-by: Ard Biesheuvel ardb@kernel.org Signed-off-by: Borislav Petkov (AMD) bp@alien8.de Reviewed-by: Tom Lendacky thomas.lendacky@amd.com Link: https://lore.kernel.org/r/20240126163918.2908990-2-ardb+git@google.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/x86/mm/mem_encrypt_identity.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/arch/x86/mm/mem_encrypt_identity.c b/arch/x86/mm/mem_encrypt_identity.c index d73aeb16417fc..7f72472a34d6d 100644 --- a/arch/x86/mm/mem_encrypt_identity.c +++ b/arch/x86/mm/mem_encrypt_identity.c @@ -507,7 +507,6 @@ void __init sme_enable(struct boot_params *bp) const char *cmdline_ptr, *cmdline_arg, *cmdline_on, *cmdline_off; unsigned int eax, ebx, ecx, edx; unsigned long feature_mask; - bool active_by_default; unsigned long me_mask; char buffer[16]; bool snp; @@ -593,22 +592,19 @@ void __init sme_enable(struct boot_params *bp) : "p" (sme_cmdline_off));

if (IS_ENABLED(CONFIG_AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT)) - active_by_default = true; - else - active_by_default = false; + sme_me_mask = me_mask;

cmdline_ptr = (const char *)((u64)bp->hdr.cmd_line_ptr | ((u64)bp->ext_cmd_line_ptr << 32));

if (cmdline_find_option(cmdline_ptr, cmdline_arg, buffer, sizeof(buffer)) < 0) - return; + goto out;

if (!strncmp(buffer, cmdline_on, sizeof(buffer))) sme_me_mask = me_mask; else if (!strncmp(buffer, cmdline_off, sizeof(buffer))) sme_me_mask = 0; - else - sme_me_mask = active_by_default ? me_mask : 0; + out: if (sme_me_mask) { physical_mask &= ~sme_me_mask;

From: Peter Hilber peter.hilber@opensynergy.com

[ Upstream commit 87a41130881995f82f7adbafbfeddaebfb35f0ef ]

The cycle_between() helper checks if parameter test is in the open interval (before, after). Colloquially speaking, this also applies to the counter wrap-around special case before > after. get_device_system_crosststamp() currently uses cycle_between() at the first call site to decide whether to interpolate for older counter readings.

get_device_system_crosststamp() has the following problem with cycle_between() testing against an open interval: Assume that, by chance, cycles == tk->tkr_mono.cycle_last (in the following, "cycle_last" for brevity). Then, cycle_between() at the first call site, with effective argument values cycle_between(cycle_last, cycles, now), returns false, enabling interpolation. During interpolation, get_device_system_crosststamp() will then call cycle_between() at the second call site (if a history_begin was supplied). The effective argument values are cycle_between(history_begin->cycles, cycles, cycles), since system_counterval.cycles == interval_start == cycles, per the assumption. Due to the test against the open interval, cycle_between() returns false again. This causes get_device_system_crosststamp() to return -EINVAL.

This failure should be avoided, since get_device_system_crosststamp() works both when cycles follows cycle_last (no interpolation), and when cycles precedes cycle_last (interpolation). For the case cycles == cycle_last, interpolation is actually unneeded.

Fix this by changing cycle_between() into timestamp_in_interval(), which now checks against the closed interval, rather than the open interval.

This changes the get_device_system_crosststamp() behavior for three corner cases:

1. Bypass interpolation in the case cycles == tk->tkr_mono.cycle_last, fixing the problem described above.

2. At the first timestamp_in_interval() call site, cycles == now no longer causes failure.

3. At the second timestamp_in_interval() call site, history_begin->cycles == system_counterval.cycles no longer causes failure. adjust_historical_crosststamp() also works for this corner case, where partial_history_cycles == total_history_cycles.

These behavioral changes should not cause any problems.

Fixes: 2c756feb18d9 ("time: Add history to cross timestamp interface supporting slower devices") Signed-off-by: Peter Hilber peter.hilber@opensynergy.com Signed-off-by: Thomas Gleixner tglx@linutronix.de Link: https://lore.kernel.org/r/20231218073849.35294-3-peter.hilber@opensynergy.co... Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/time/timekeeping.c | 18 ++++++++++-------- 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 8f35455b62509..4e9f2f88c9d6e 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -1180,13 +1180,15 @@ static int adjust_historical_crosststamp(struct system_time_snapshot *history, }

/* - * cycle_between - true if test occurs chronologically between before and after + * timestamp_in_interval - true if ts is chronologically in [start, end] + * + * True if ts occurs chronologically at or after start, and before or at end. */ -static bool cycle_between(u64 before, u64 test, u64 after) +static bool timestamp_in_interval(u64 start, u64 end, u64 ts) { - if (test > before && test < after) + if (ts >= start && ts <= end) return true; - if (before > after && (test > before || test < after)) + if (start > end && (ts >= start || ts <= end)) return true; return false; } @@ -1246,7 +1248,7 @@ int get_device_system_crosststamp(int (*get_time_fn) */ now = tk_clock_read(&tk->tkr_mono); interval_start = tk->tkr_mono.cycle_last; - if (!cycle_between(interval_start, cycles, now)) { + if (!timestamp_in_interval(interval_start, now, cycles)) { clock_was_set_seq = tk->clock_was_set_seq; cs_was_changed_seq = tk->cs_was_changed_seq; cycles = interval_start; @@ -1277,13 +1279,13 @@ int get_device_system_crosststamp(int (*get_time_fn) bool discontinuity;

/* - * Check that the counter value occurs after the provided + * Check that the counter value is not before the provided * history reference and that the history doesn't cross a * clocksource change */ if (!history_begin || - !cycle_between(history_begin->cycles, - system_counterval.cycles, cycles) || + !timestamp_in_interval(history_begin->cycles, + cycles, system_counterval.cycles) || history_begin->cs_was_changed_seq != cs_was_changed_seq) return -EINVAL; partial_history_cycles = cycles - system_counterval.cycles;

From: Keisuke Nishimura keisuke.nishimura@inria.fr

[ Upstream commit 8aeaffef8c6eceab0e1498486fdd4f3dc3b7066c ]

When picking a CPU on task wakeup, select_idle_smt() has to take into account the scheduling domain of @target. This is because the "isolcpus" kernel command line option can remove CPUs from the domain to isolate them from other SMT siblings.

This fix checks if the candidate CPU is in the target scheduling domain.

Commit:

df3cb4ea1fb6 ("sched/fair: Fix wrong cpu selecting from isolated domain")

... originally introduced this fix by adding the check of the scheduling domain in the loop.

However, commit:

3e6efe87cd5cc ("sched/fair: Remove redundant check in select_idle_smt()")

... accidentally removed the check. Bring it back.

Fixes: 3e6efe87cd5c ("sched/fair: Remove redundant check in select_idle_smt()") Signed-off-by: Keisuke Nishimura keisuke.nishimura@inria.fr Signed-off-by: Julia Lawall julia.lawall@inria.fr Signed-off-by: Ingo Molnar mingo@kernel.org Reviewed-by: Vincent Guittot vincent.guittot@linaro.org Link: https://lore.kernel.org/r/20240110131707.437301-1-keisuke.nishimura@inria.fr Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/sched/fair.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index d336af9cba134..fed669ec72bce 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -7206,13 +7206,19 @@ static int select_idle_core(struct task_struct *p, int core, struct cpumask *cpu /* * Scan the local SMT mask for idle CPUs. */ -static int select_idle_smt(struct task_struct *p, int target) +static int select_idle_smt(struct task_struct *p, struct sched_domain *sd, int target) { int cpu;

for_each_cpu_and(cpu, cpu_smt_mask(target), p->cpus_ptr) { if (cpu == target) continue; + /* + * Check if the CPU is in the LLC scheduling domain of @target. + * Due to isolcpus, there is no guarantee that all the siblings are in the domain. + */ + if (!cpumask_test_cpu(cpu, sched_domain_span(sd))) + continue; if (available_idle_cpu(cpu) || sched_idle_cpu(cpu)) return cpu; } @@ -7236,7 +7242,7 @@ static inline int select_idle_core(struct task_struct *p, int core, struct cpuma return __select_idle_cpu(core, p); }

-static inline int select_idle_smt(struct task_struct *p, int target) +static inline int select_idle_smt(struct task_struct *p, struct sched_domain *sd, int target) { return -1; } @@ -7498,7 +7504,7 @@ static int select_idle_sibling(struct task_struct *p, int prev, int target) has_idle_core = test_idle_cores(target);

if (!has_idle_core && cpus_share_cache(prev, target)) { - i = select_idle_smt(p, prev); + i = select_idle_smt(p, sd, prev); if ((unsigned int)i < nr_cpumask_bits) return i; }

From: Xingyuan Mo hdthky0@gmail.com

[ Upstream commit ad25ee36f00172f7d53242dc77c69fff7ced0755 ]

We should check whether the WMI_TLV_TAG_STRUCT_MGMT_TX_COMPL_EVENT tlv is present before accessing it, otherwise a null pointer deference error will occur.

Fixes: dc405152bb64 ("ath10k: handle mgmt tx completion event") Signed-off-by: Xingyuan Mo hdthky0@gmail.com Acked-by: Jeff Johnson quic_jjohnson@quicinc.com Signed-off-by: Kalle Valo quic_kvalo@quicinc.com Link: https://msgid.link/20231208043433.271449-1-hdthky0@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath10k/wmi-tlv.c | 4 ++++ 1 file changed, 4 insertions(+)

diff --git a/drivers/net/wireless/ath/ath10k/wmi-tlv.c b/drivers/net/wireless/ath/ath10k/wmi-tlv.c index 6b6aa3c367448..0ce08e9a0a3d2 100644 --- a/drivers/net/wireless/ath/ath10k/wmi-tlv.c +++ b/drivers/net/wireless/ath/ath10k/wmi-tlv.c @@ -851,6 +851,10 @@ ath10k_wmi_tlv_op_pull_mgmt_tx_compl_ev(struct ath10k *ar, struct sk_buff *skb, }

ev = tb[WMI_TLV_TAG_STRUCT_MGMT_TX_COMPL_EVENT]; + if (!ev) { + kfree(tb); + return -EPROTO; + }

arg->desc_id = ev->desc_id; arg->status = ev->status;

From: Rahul Rameshbabu sergeantsagara@protonmail.com

[ Upstream commit 77135a38f6c2f950d2306ac3d37cbb407e6243f2 ]

When QoS is disabled, the queue priority value will not map to the correct ieee80211 queue since there is only one queue. Stop/wake queue 0 when QoS is disabled to prevent trying to stop/wake a non-existent queue and failing to stop/wake the actual queue instantiated.

Fixes: 5100d5ac81b9 ("b43: Add PIO support for PCMCIA devices") Signed-off-by: Rahul Rameshbabu sergeantsagara@protonmail.com Reviewed-by: Julian Calaby julian.calaby@gmail.com Signed-off-by: Kalle Valo kvalo@kernel.org Link: https://msgid.link/20231231050300.122806-3-sergeantsagara@protonmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/broadcom/b43/pio.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/broadcom/b43/pio.c b/drivers/net/wireless/broadcom/b43/pio.c index 8c28a9250cd19..cc19b589fa70d 100644 --- a/drivers/net/wireless/broadcom/b43/pio.c +++ b/drivers/net/wireless/broadcom/b43/pio.c @@ -525,7 +525,7 @@ int b43_pio_tx(struct b43_wldev *dev, struct sk_buff *skb) if (total_len > (q->buffer_size - q->buffer_used)) { /* Not enough memory on the queue. */ err = -EBUSY; - ieee80211_stop_queue(dev->wl->hw, skb_get_queue_mapping(skb)); + b43_stop_queue(dev, skb_get_queue_mapping(skb)); q->stopped = true; goto out; } @@ -552,7 +552,7 @@ int b43_pio_tx(struct b43_wldev *dev, struct sk_buff *skb) if (((q->buffer_size - q->buffer_used) < roundup(2 + 2 + 6, 4)) || (q->free_packet_slots == 0)) { /* The queue is full. */ - ieee80211_stop_queue(dev->wl->hw, skb_get_queue_mapping(skb)); + b43_stop_queue(dev, skb_get_queue_mapping(skb)); q->stopped = true; }

@@ -587,7 +587,7 @@ void b43_pio_handle_txstatus(struct b43_wldev *dev, list_add(&pack->list, &q->packets_list);

if (q->stopped) { - ieee80211_wake_queue(dev->wl->hw, q->queue_prio); + b43_wake_queue(dev, q->queue_prio); q->stopped = false; } }

From: Rahul Rameshbabu sergeantsagara@protonmail.com

[ Upstream commit 09795bded2e725443fe4a4803cae2079cdaf7b26 ]

bcm4331 seems to not function correctly with QoS support. This may be due to issues with currently available firmware or potentially a device specific issue.

When queues that are not of the default "best effort" priority are selected, traffic appears to not transmit out of the hardware while no errors are returned. This behavior is present among all the other priority queues: video, voice, and background. While this can be worked around by setting a kernel parameter, the default behavior is problematic for most users and may be difficult to debug. This patch offers a working out-of-box experience for bcm4331 users.

Log of the issue (using ssh low-priority traffic as an example): ssh -T -vvvv git@github.com OpenSSH_9.6p1, OpenSSL 3.0.12 24 Oct 2023 debug1: Reading configuration data /etc/ssh/ssh_config debug2: checking match for 'host * exec "/nix/store/q1c2flcykgr4wwg5a6h450hxbk4ch589-bash-5.2-p15/bin/bash -c '/nix/store/c015armnkhr6v18za0rypm7sh1i8js8w-gnupg-2.4.1/bin/gpg-connect-agent --quiet updatestartuptty /bye >/dev/null 2>&1'"' host github.com originally github.com debug3: /etc/ssh/ssh_config line 5: matched 'host "github.com"' debug1: Executing command: '/nix/store/q1c2flcykgr4wwg5a6h450hxbk4ch589-bash-5.2-p15/bin/bash -c '/nix/store/c015armnkhr6v18za0rypm7sh1i8js8w-gnupg-2.4.1/bin/gpg-connect-agent --quiet updatestartuptty /bye >/dev/null 2>&1'' debug3: command returned status 0 debug3: /etc/ssh/ssh_config line 5: matched 'exec "/nix/store/q1c2flcykgr4wwg5a6h450hxbk4ch589-bash-5.2-p15/bin/bash -c '/nix/store/c015armnkhr6v18za0r"' debug2: match found debug1: /etc/ssh/ssh_config line 9: Applying options for * debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts' -> '/home/binary-eater/.ssh/known_hosts' debug3: expanded UserKnownHostsFile '~/.ssh/known_hosts2' -> '/home/binary-eater/.ssh/known_hosts2' debug2: resolving "github.com" port 22 debug3: resolve_host: lookup github.com:22 debug3: channel_clear_timeouts: clearing debug3: ssh_connect_direct: entering debug1: Connecting to github.com [192.30.255.113] port 22. debug3: set_sock_tos: set socket 3 IP_TOS 0x48

Fixes: e6f5b934fba8 ("b43: Add QOS support") Signed-off-by: Rahul Rameshbabu sergeantsagara@protonmail.com Reviewed-by: Julian Calaby julian.calaby@gmail.com Signed-off-by: Kalle Valo kvalo@kernel.org Link: https://msgid.link/20231231050300.122806-5-sergeantsagara@protonmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/broadcom/b43/main.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/broadcom/b43/main.c b/drivers/net/wireless/broadcom/b43/main.c index 97d8bdeaa06cb..effb6c23f8257 100644 --- a/drivers/net/wireless/broadcom/b43/main.c +++ b/drivers/net/wireless/broadcom/b43/main.c @@ -2587,7 +2587,8 @@ static void b43_request_firmware(struct work_struct *work)

start_ieee80211: wl->hw->queues = B43_QOS_QUEUE_NUM; - if (!modparam_qos || dev->fw.opensource) + if (!modparam_qos || dev->fw.opensource || + dev->dev->chip_id == BCMA_CHIP_ID_BCM4331) wl->hw->queues = 1;

err = ieee80211_register_hw(wl->hw);

From: Alexis Lothoré alexis.lothore@bootlin.com

[ Upstream commit 205c50306acf58a335eb19fa84e40140f4fe814f ]

With lockdep enabled, calls to the connect function from cfg802.11 layer lead to the following warning:

============================= WARNING: suspicious RCU usage 6.7.0-rc1-wt+ #333 Not tainted ----------------------------- drivers/net/wireless/microchip/wilc1000/hif.c:386 suspicious rcu_dereference_check() usage! [...] stack backtrace: CPU: 0 PID: 100 Comm: wpa_supplicant Not tainted 6.7.0-rc1-wt+ #333 Hardware name: Atmel SAMA5 unwind_backtrace from show_stack+0x18/0x1c show_stack from dump_stack_lvl+0x34/0x48 dump_stack_lvl from wilc_parse_join_bss_param+0x7dc/0x7f4 wilc_parse_join_bss_param from connect+0x2c4/0x648 connect from cfg80211_connect+0x30c/0xb74 cfg80211_connect from nl80211_connect+0x860/0xa94 nl80211_connect from genl_rcv_msg+0x3fc/0x59c genl_rcv_msg from netlink_rcv_skb+0xd0/0x1f8 netlink_rcv_skb from genl_rcv+0x2c/0x3c genl_rcv from netlink_unicast+0x3b0/0x550 netlink_unicast from netlink_sendmsg+0x368/0x688 netlink_sendmsg from ____sys_sendmsg+0x190/0x430 ____sys_sendmsg from ___sys_sendmsg+0x110/0x158 ___sys_sendmsg from sys_sendmsg+0xe8/0x150 sys_sendmsg from ret_fast_syscall+0x0/0x1c

This warning is emitted because in the connect path, when trying to parse target BSS parameters, we dereference a RCU pointer whithout being in RCU critical section. Fix RCU dereference usage by moving it to a RCU read critical section. To avoid wrapping the whole wilc_parse_join_bss_param under the critical section, just use the critical section to copy ies data

Fixes: c460495ee072 ("staging: wilc1000: fix incorrent type in initializer") Signed-off-by: Alexis Lothoré alexis.lothore@bootlin.com Signed-off-by: Kalle Valo kvalo@kernel.org Link: https://msgid.link/20240105075733.36331-3-alexis.lothore@bootlin.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/microchip/wilc1000/hif.c | 36 ++++++++++++------- 1 file changed, 24 insertions(+), 12 deletions(-)

diff --git a/drivers/net/wireless/microchip/wilc1000/hif.c b/drivers/net/wireless/microchip/wilc1000/hif.c index 2f8b9e9c393ce..e202013e6f2fe 100644 --- a/drivers/net/wireless/microchip/wilc1000/hif.c +++ b/drivers/net/wireless/microchip/wilc1000/hif.c @@ -374,38 +374,49 @@ static void handle_connect_timeout(struct work_struct *work) void *wilc_parse_join_bss_param(struct cfg80211_bss *bss, struct cfg80211_crypto_settings *crypto) { - const struct cfg80211_bss_ies *ies = rcu_dereference(bss->ies); - const u8 *tim_elm, *ssid_elm, *rates_ie, *supp_rates_ie; + const u8 *ies_data, *tim_elm, *ssid_elm, *rates_ie, *supp_rates_ie; const u8 *ht_ie, *wpa_ie, *wmm_ie, *rsn_ie; struct ieee80211_p2p_noa_attr noa_attr; + const struct cfg80211_bss_ies *ies; struct wilc_join_bss_param *param; - u8 rates_len = 0; + u8 rates_len = 0, ies_len; int ret;

param = kzalloc(sizeof(*param), GFP_KERNEL); if (!param) return NULL;

+ rcu_read_lock(); + ies = rcu_dereference(bss->ies); + ies_data = kmemdup(ies->data, ies->len, GFP_ATOMIC); + if (!ies_data) { + rcu_read_unlock(); + kfree(param); + return NULL; + } + ies_len = ies->len; + rcu_read_unlock(); + param->beacon_period = cpu_to_le16(bss->beacon_interval); param->cap_info = cpu_to_le16(bss->capability); param->bss_type = WILC_FW_BSS_TYPE_INFRA; param->ch = ieee80211_frequency_to_channel(bss->channel->center_freq); ether_addr_copy(param->bssid, bss->bssid);

- ssid_elm = cfg80211_find_ie(WLAN_EID_SSID, ies->data, ies->len); + ssid_elm = cfg80211_find_ie(WLAN_EID_SSID, ies_data, ies_len); if (ssid_elm) { if (ssid_elm[1] <= IEEE80211_MAX_SSID_LEN) memcpy(param->ssid, ssid_elm + 2, ssid_elm[1]); }

- tim_elm = cfg80211_find_ie(WLAN_EID_TIM, ies->data, ies->len); + tim_elm = cfg80211_find_ie(WLAN_EID_TIM, ies_data, ies_len); if (tim_elm && tim_elm[1] >= 2) param->dtim_period = tim_elm[3];

memset(param->p_suites, 0xFF, 3); memset(param->akm_suites, 0xFF, 3);

- rates_ie = cfg80211_find_ie(WLAN_EID_SUPP_RATES, ies->data, ies->len); + rates_ie = cfg80211_find_ie(WLAN_EID_SUPP_RATES, ies_data, ies_len); if (rates_ie) { rates_len = rates_ie[1]; if (rates_len > WILC_MAX_RATES_SUPPORTED) @@ -416,7 +427,7 @@ void *wilc_parse_join_bss_param(struct cfg80211_bss *bss,

if (rates_len < WILC_MAX_RATES_SUPPORTED) { supp_rates_ie = cfg80211_find_ie(WLAN_EID_EXT_SUPP_RATES, - ies->data, ies->len); + ies_data, ies_len); if (supp_rates_ie) { u8 ext_rates = supp_rates_ie[1];

@@ -431,11 +442,11 @@ void *wilc_parse_join_bss_param(struct cfg80211_bss *bss, } }

- ht_ie = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies->data, ies->len); + ht_ie = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, ies_data, ies_len); if (ht_ie) param->ht_capable = true;

- ret = cfg80211_get_p2p_attr(ies->data, ies->len, + ret = cfg80211_get_p2p_attr(ies_data, ies_len, IEEE80211_P2P_ATTR_ABSENCE_NOTICE, (u8 *)&noa_attr, sizeof(noa_attr)); if (ret > 0) { @@ -459,7 +470,7 @@ void *wilc_parse_join_bss_param(struct cfg80211_bss *bss, } wmm_ie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT, WLAN_OUI_TYPE_MICROSOFT_WMM, - ies->data, ies->len); + ies_data, ies_len); if (wmm_ie) { struct ieee80211_wmm_param_ie *ie;

@@ -474,13 +485,13 @@ void *wilc_parse_join_bss_param(struct cfg80211_bss *bss,

wpa_ie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT, WLAN_OUI_TYPE_MICROSOFT_WPA, - ies->data, ies->len); + ies_data, ies_len); if (wpa_ie) { param->mode_802_11i = 1; param->rsn_found = true; }

- rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, ies->data, ies->len); + rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, ies_data, ies_len); if (rsn_ie) { int rsn_ie_len = sizeof(struct element) + rsn_ie[1]; int offset = 8; @@ -514,6 +525,7 @@ void *wilc_parse_join_bss_param(struct cfg80211_bss *bss, param->akm_suites[i] = crypto->akm_suites[i] & 0xFF; }

+ kfree(ies_data); return (void *)param; }

From: Ajay Singh ajay.kathat@microchip.com

[ Upstream commit 328efda22af81130c2ad981c110518cb29ff2f1d ]

Commit 09ed8bfc5215 ("wilc1000: Rename workqueue from "WILC_wq" to "NETDEV-wq"") moved workqueue creation in wilc_netdev_ifc_init in order to set the interface name in the workqueue name. However, while the driver needs only one workqueue, the wilc_netdev_ifc_init is called each time we add an interface over a phy, which in turns overwrite the workqueue with a new one. This can be observed with the following commands:

for i in $(seq 0 10) do iw phy phy0 interface add wlan1 type managed iw dev wlan1 del done ps -eo pid,comm|grep wlan

39 kworker/R-wlan0 98 kworker/R-wlan1 102 kworker/R-wlan1 105 kworker/R-wlan1 108 kworker/R-wlan1 111 kworker/R-wlan1 114 kworker/R-wlan1 117 kworker/R-wlan1 120 kworker/R-wlan1 123 kworker/R-wlan1 126 kworker/R-wlan1 129 kworker/R-wlan1

Fix this leakage by putting back hif_workqueue allocation in wilc_cfg80211_init. Regarding the workqueue name, it is indeed relevant to set it lowercase, however it is not attached to a specific netdev, so enforcing netdev name in the name is not so relevant. Still, enrich the name with the wiphy name to make it clear which phy is using the workqueue.

Fixes: 09ed8bfc5215 ("wilc1000: Rename workqueue from "WILC_wq" to "NETDEV-wq"") Signed-off-by: Ajay Singh ajay.kathat@microchip.com Co-developed-by: Alexis Lothoré alexis.lothore@bootlin.com Signed-off-by: Alexis Lothoré alexis.lothore@bootlin.com Signed-off-by: Kalle Valo kvalo@kernel.org Link: https://msgid.link/20240115-wilc_1000_fixes-v1-3-54d29463a738@bootlin.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/microchip/wilc1000/cfg80211.c | 11 ++++++++++- drivers/net/wireless/microchip/wilc1000/netdev.c | 10 +--------- 2 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/microchip/wilc1000/cfg80211.c b/drivers/net/wireless/microchip/wilc1000/cfg80211.c index b545d93c6e374..2f75dc4b47975 100644 --- a/drivers/net/wireless/microchip/wilc1000/cfg80211.c +++ b/drivers/net/wireless/microchip/wilc1000/cfg80211.c @@ -1810,15 +1810,24 @@ int wilc_cfg80211_init(struct wilc **wilc, struct device *dev, int io_type, INIT_LIST_HEAD(&wl->rxq_head.list); INIT_LIST_HEAD(&wl->vif_list);

+ wl->hif_workqueue = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, + wiphy_name(wl->wiphy)); + if (!wl->hif_workqueue) { + ret = -ENOMEM; + goto free_cfg; + } vif = wilc_netdev_ifc_init(wl, "wlan%d", WILC_STATION_MODE, NL80211_IFTYPE_STATION, false); if (IS_ERR(vif)) { ret = PTR_ERR(vif); - goto free_cfg; + goto free_hq; }

return 0;

+free_hq: + destroy_workqueue(wl->hif_workqueue); + free_cfg: wilc_wlan_cfg_deinit(wl);

diff --git a/drivers/net/wireless/microchip/wilc1000/netdev.c b/drivers/net/wireless/microchip/wilc1000/netdev.c index e9f59de31b0b9..0e6eeeed2e086 100644 --- a/drivers/net/wireless/microchip/wilc1000/netdev.c +++ b/drivers/net/wireless/microchip/wilc1000/netdev.c @@ -977,13 +977,6 @@ struct wilc_vif *wilc_netdev_ifc_init(struct wilc *wl, const char *name, goto error; }

- wl->hif_workqueue = alloc_ordered_workqueue("%s-wq", WQ_MEM_RECLAIM, - ndev->name); - if (!wl->hif_workqueue) { - ret = -ENOMEM; - goto unregister_netdev; - } - ndev->needs_free_netdev = true; vif->iftype = vif_type; vif->idx = wilc_get_available_idx(wl); @@ -996,12 +989,11 @@ struct wilc_vif *wilc_netdev_ifc_init(struct wilc *wl, const char *name,

return vif;

-unregister_netdev: +error: if (rtnl_locked) cfg80211_unregister_netdevice(ndev); else unregister_netdev(ndev); - error: free_netdev(ndev); return ERR_PTR(ret); }

From: Jinjie Ruan ruanjinjie@huawei.com

[ Upstream commit 50180c7f8e3de7c2d87f619131776598fcb1478d ]

debugfs_create_dir() returns ERR_PTR and never return NULL.

As Russell suggested, this patch removes the error checking for debugfs_create_dir(). This is because the DebugFS kernel API is developed in a way that the caller can safely ignore the errors that occur during the creation of DebugFS nodes. The debugfs APIs have a IS_ERR() judge in start_creating() which can handle it gracefully. So these checks are unnecessary.

Fixes: 5e6e3a92b9a4 ("wireless: mwifiex: initial commit for Marvell mwifiex driver") Signed-off-by: Jinjie Ruan ruanjinjie@huawei.com Suggested-by: Russell King (Oracle) linux@armlinux.org.uk Signed-off-by: Kalle Valo kvalo@kernel.org Link: https://msgid.link/20230903030216.1509013-3-ruanjinjie@huawei.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/marvell/mwifiex/debugfs.c | 3 --- 1 file changed, 3 deletions(-)

diff --git a/drivers/net/wireless/marvell/mwifiex/debugfs.c b/drivers/net/wireless/marvell/mwifiex/debugfs.c index f9c9fec7c792a..d14a0f4c1b6d7 100644 --- a/drivers/net/wireless/marvell/mwifiex/debugfs.c +++ b/drivers/net/wireless/marvell/mwifiex/debugfs.c @@ -970,9 +970,6 @@ mwifiex_dev_debugfs_init(struct mwifiex_private *priv) priv->dfs_dev_dir = debugfs_create_dir(priv->netdev->name, mwifiex_dfs_dir);

- if (!priv->dfs_dev_dir) - return; - MWIFIEX_DFS_ADD_FILE(info); MWIFIEX_DFS_ADD_FILE(debug); MWIFIEX_DFS_ADD_FILE(getlog);

From: Konrad Dybcio konrad.dybcio@linaro.org

[ Upstream commit 3c58b96df110a80e78fa36ef928f1e6c375008e3 ]

Most of GCC is powered by the CX rail. Describe that relationship to let the performance state requests trickle up the chain.

Fixes: 8575f197b077 ("arm64: dts: qcom: Introduce the SC8180x platform") Signed-off-by: Konrad Dybcio konrad.dybcio@linaro.org Link: https://lore.kernel.org/r/20231230-topic-8180_more_fixes-v1-2-93b5c107ed43@l... Signed-off-by: Bjorn Andersson andersson@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/qcom/sc8180x.dtsi | 1 + 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/qcom/sc8180x.dtsi b/arch/arm64/boot/dts/qcom/sc8180x.dtsi index f9e929bfa5508..97a75678a5169 100644 --- a/arch/arm64/boot/dts/qcom/sc8180x.dtsi +++ b/arch/arm64/boot/dts/qcom/sc8180x.dtsi @@ -781,6 +781,7 @@ gcc: clock-controller@100000 { clock-names = "bi_tcxo", "bi_tcxo_ao", "sleep_clk"; + power-domains = <&rpmhpd SC8180X_CX>; };

qupv3_id_0: geniqup@8c0000 {

From: Konrad Dybcio konrad.dybcio@linaro.org

[ Upstream commit 07b600dfdfea65d58dd80ea25becd8cff69bfafc ]

The CPUs can be powered off without pulling the plug from the rest of the system. Describe the idle state responsible for this.

Fixes: 8575f197b077 ("arm64: dts: qcom: Introduce the SC8180x platform") Signed-off-by: Konrad Dybcio konrad.dybcio@linaro.org Link: https://lore.kernel.org/r/20231230-topic-8180_more_fixes-v1-4-93b5c107ed43@l... Signed-off-by: Bjorn Andersson andersson@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/qcom/sc8180x.dtsi | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc8180x.dtsi b/arch/arm64/boot/dts/qcom/sc8180x.dtsi index c8001ccc2b7b1..e15f4facc0021 100644 --- a/arch/arm64/boot/dts/qcom/sc8180x.dtsi +++ b/arch/arm64/boot/dts/qcom/sc8180x.dtsi @@ -297,7 +297,15 @@ BIG_CPU_SLEEP_0: cpu-sleep-1-0 { };

domain-idle-states { - CLUSTER_SLEEP_0: cluster-sleep-0 { + CLUSTER_SLEEP_APSS_OFF: cluster-sleep-0 { + compatible = "domain-idle-state"; + arm,psci-suspend-param = <0x41000044>; + entry-latency-us = <3300>; + exit-latency-us = <3300>; + min-residency-us = <6000>; + }; + + CLUSTER_SLEEP_AOSS_SLEEP: cluster-sleep-1 { compatible = "domain-idle-state"; arm,psci-suspend-param = <0x4100a344>; entry-latency-us = <3263>; @@ -581,7 +589,7 @@ CPU_PD7: power-domain-cpu7 {

CLUSTER_PD: power-domain-cpu-cluster0 { #power-domain-cells = <0>; - domain-idle-states = <&CLUSTER_SLEEP_0>; + domain-idle-states = <&CLUSTER_SLEEP_APSS_OFF &CLUSTER_SLEEP_AOSS_SLEEP>; }; };

From: Konrad Dybcio konrad.dybcio@linaro.org

[ Upstream commit 309b5774f45aafd002efdb2656673542419abd6f ]

There's an OPP table to handle this, drop the permanent vote.

Fixes: 494dec9b6f54 ("arm64: dts: qcom: sc8180x: Add display and gpu nodes") Signed-off-by: Konrad Dybcio konrad.dybcio@linaro.org Link: https://lore.kernel.org/r/20231230-topic-8180_more_fixes-v1-6-93b5c107ed43@l... Signed-off-by: Bjorn Andersson andersson@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/qcom/sc8180x.dtsi | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc8180x.dtsi b/arch/arm64/boot/dts/qcom/sc8180x.dtsi index 548dbeaf823e4..5ef7500004896 100644 --- a/arch/arm64/boot/dts/qcom/sc8180x.dtsi +++ b/arch/arm64/boot/dts/qcom/sc8180x.dtsi @@ -2731,10 +2731,8 @@ mdss_mdp: mdp@ae01000 { "core", "vsync";

- assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>, - <&dispcc DISP_CC_MDSS_VSYNC_CLK>; - assigned-clock-rates = <460000000>, - <19200000>; + assigned-clocks = <&dispcc DISP_CC_MDSS_VSYNC_CLK>; + assigned-clock-rates = <19200000>;

operating-points-v2 = <&mdp_opp_table>; power-domains = <&rpmhpd SC8180X_MMCX>;

From: Konrad Dybcio konrad.dybcio@linaro.org

[ Upstream commit dcad0590d1ea4278a55c30dd2903611a96111601 ]

The AOSS_QMP region is overallocated, bleeding into space that's supposed to be used by other peripherals. Fix it.

Fixes: 8575f197b077 ("arm64: dts: qcom: Introduce the SC8180x platform") Signed-off-by: Konrad Dybcio konrad.dybcio@linaro.org Link: https://lore.kernel.org/r/20231230-topic-8180_more_fixes-v1-9-93b5c107ed43@l... Signed-off-by: Bjorn Andersson andersson@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/qcom/sc8180x.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sc8180x.dtsi b/arch/arm64/boot/dts/qcom/sc8180x.dtsi index de53541858420..6eb4c5eb6bb8c 100644 --- a/arch/arm64/boot/dts/qcom/sc8180x.dtsi +++ b/arch/arm64/boot/dts/qcom/sc8180x.dtsi @@ -3257,7 +3257,7 @@ tsens1: thermal-sensor@c265000 {

aoss_qmp: power-controller@c300000 { compatible = "qcom,sc8180x-aoss-qmp", "qcom,aoss-qmp"; - reg = <0x0 0x0c300000 0x0 0x100000>; + reg = <0x0 0x0c300000 0x0 0x400>; interrupts = <GIC_SPI 389 IRQ_TYPE_EDGE_RISING>; mboxes = <&apss_shared 0>;

From: Nícolas F. R. A. Prado nfraprado@collabora.com

[ Upstream commit 788715b5f21c6455264fe00a1779e61bec407fe2 ]

Before proceeding with the probe and enabling frequency scaling for the CPUs, make sure that all supplies feeding the CPUs have probed.

This fixes an issue observed on MT8195-Tomato where if the mediatek-cpufreq-hw driver enabled the hardware (by writing to REG_FREQ_ENABLE) before the SPMI controller driver (spmi-mtk-pmif), behind which lies the big CPU supply, probed the platform would hang shortly after with "rcu: INFO: rcu_preempt detected stalls on CPUs/tasks" being printed in the log.

Fixes: 4855e26bcf4d ("cpufreq: mediatek-hw: Add support for CPUFREQ HW") Signed-off-by: Nícolas F. R. A. Prado nfraprado@collabora.com Reviewed-by: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com Reviewed-by: Matthias Brugger matthias.bgg@gmail.com Signed-off-by: Viresh Kumar viresh.kumar@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/cpufreq/mediatek-cpufreq-hw.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/drivers/cpufreq/mediatek-cpufreq-hw.c b/drivers/cpufreq/mediatek-cpufreq-hw.c index d46afb3c00923..a1aa9385980ae 100644 --- a/drivers/cpufreq/mediatek-cpufreq-hw.c +++ b/drivers/cpufreq/mediatek-cpufreq-hw.c @@ -13,6 +13,7 @@ #include <linux/of.h> #include <linux/of_platform.h> #include <linux/platform_device.h> +#include <linux/regulator/consumer.h> #include <linux/slab.h>

#define LUT_MAX_ENTRIES 32U @@ -300,7 +301,23 @@ static struct cpufreq_driver cpufreq_mtk_hw_driver = { static int mtk_cpufreq_hw_driver_probe(struct platform_device *pdev) { const void *data; - int ret; + int ret, cpu; + struct device *cpu_dev; + struct regulator *cpu_reg; + + /* Make sure that all CPU supplies are available before proceeding. */ + for_each_possible_cpu(cpu) { + cpu_dev = get_cpu_device(cpu); + if (!cpu_dev) + return dev_err_probe(&pdev->dev, -EPROBE_DEFER, + "Failed to get cpu%d device\n", cpu); + + cpu_reg = devm_regulator_get_optional(cpu_dev, "cpu"); + if (IS_ERR(cpu_reg)) + return dev_err_probe(&pdev->dev, PTR_ERR(cpu_reg), + "CPU%d regulator get failed\n", cpu); + } +

data = of_device_get_match_data(&pdev->dev); if (!data)

From: Eric Dumazet edumazet@google.com

[ Upstream commit e50e10ae5d81ddb41547114bfdc5edc04422f082 ]

inet_diag_lock_handler() reads inet_diag_table[proto] locklessly.

Use READ_ONCE()/WRITE_ONCE() annotations to avoid potential issues.

Fixes: d523a328fb02 ("[INET]: Fix inet_diag dead-lock regression") Signed-off-by: Eric Dumazet edumazet@google.com Reviewed-by: Guillaume Nault gnault@redhat.com Reviewed-by: Kuniyuki Iwashima kuniyu@amazon.com Reviewed-by: Willem de Bruijn willemb@google.com Signed-off-by: Paolo Abeni pabeni@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- net/ipv4/inet_diag.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c index e13a84433413e..132b10e23758b 100644 --- a/net/ipv4/inet_diag.c +++ b/net/ipv4/inet_diag.c @@ -57,7 +57,7 @@ static const struct inet_diag_handler *inet_diag_lock_handler(int proto) return ERR_PTR(-ENOENT); }

- if (!inet_diag_table[proto]) + if (!READ_ONCE(inet_diag_table[proto])) sock_load_diag_module(AF_INET, proto);

mutex_lock(&inet_diag_table_mutex); @@ -1419,7 +1419,7 @@ int inet_diag_register(const struct inet_diag_handler *h) mutex_lock(&inet_diag_table_mutex); err = -EEXIST; if (!inet_diag_table[type]) { - inet_diag_table[type] = h; + WRITE_ONCE(inet_diag_table[type], h); err = 0; } mutex_unlock(&inet_diag_table_mutex); @@ -1436,7 +1436,7 @@ void inet_diag_unregister(const struct inet_diag_handler *h) return;

mutex_lock(&inet_diag_table_mutex); - inet_diag_table[type] = NULL; + WRITE_ONCE(inet_diag_table[type], NULL); mutex_unlock(&inet_diag_table_mutex); } EXPORT_SYMBOL_GPL(inet_diag_unregister);

From: Artem Savkov asavkov@redhat.com

[ Upstream commit d177c1be06ce28aa8c8710ac55be1b5ad3f314c6 ]

It is possible for bpf_kfunc_call_test_release() to be called from bpf_map_free_deferred() when bpf_testmod is already unloaded and perf_test_stuct.cnt which it tries to decrease is no longer in memory. This patch tries to fix the issue by waiting for all references to be dropped in bpf_testmod_exit().

The issue can be triggered by running 'test_progs -t map_kptr' in 6.5, but is obscured in 6.6 by d119357d07435 ("rcu-tasks: Treat only synchronous grace periods urgently").

Fixes: 65eb006d85a2 ("bpf: Move kernel test kfuncs to bpf_testmod") Signed-off-by: Artem Savkov asavkov@redhat.com Signed-off-by: Daniel Borkmann daniel@iogearbox.net Acked-by: Yonghong Song yonghong.song@linux.dev Cc: Jiri Olsa jolsa@kernel.org Link: https://lore.kernel.org/bpf/82f55c0e-0ec8-4fe1-8d8c-b1de07558ad9@linux.dev Link: https://lore.kernel.org/bpf/20240110085737.8895-1-asavkov@redhat.com Signed-off-by: Alexei Starovoitov ast@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c | 9 +++++++++ 1 file changed, 9 insertions(+)

diff --git a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c index cefc5dd72573c..2e8adf059fa3b 100644 --- a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c +++ b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c @@ -2,6 +2,7 @@ /* Copyright (c) 2020 Facebook */ #include <linux/btf.h> #include <linux/btf_ids.h> +#include <linux/delay.h> #include <linux/error-injection.h> #include <linux/init.h> #include <linux/module.h> @@ -541,6 +542,14 @@ static int bpf_testmod_init(void)

static void bpf_testmod_exit(void) { + /* Need to wait for all references to be dropped because + * bpf_kfunc_call_test_release() which currently resides in kernel can + * be called after bpf_testmod is unloaded. Once release function is + * moved into the module this wait can be removed. + */ + while (refcount_read(&prog_test_struct.cnt) > 1) + msleep(20); + return sysfs_remove_bin_file(kernel_kobj, &bin_attr_bpf_testmod_file); }

From: Andrey Grafin conquistador@yandex-team.ru

[ Upstream commit 40628f9fff73adecac77a9aa390f8016724cad99 ]

Check that bpf_object__load() successfully creates map_in_maps with BPF_MAP_TYPE_PERF_EVENT_ARRAY values. These changes cover fix in the previous patch "libbpf: Apply map_set_def_max_entries() for inner_maps on creation".

A command line output is: - w/o fix $ sudo ./test_maps libbpf: map 'mim_array_pe': failed to create inner map: -22 libbpf: map 'mim_array_pe': failed to create: Invalid argument(-22) libbpf: failed to load object './test_map_in_map.bpf.o' Failed to load test prog

- with fix $ sudo ./test_maps ... test_maps: OK, 0 SKIPPED

Fixes: 646f02ffdd49 ("libbpf: Add BTF-defined map-in-map support") Signed-off-by: Andrey Grafin conquistador@yandex-team.ru Signed-off-by: Andrii Nakryiko andrii@kernel.org Acked-by: Yonghong Song yonghong.song@linux.dev Acked-by: Hou Tao houtao1@huawei.com Link: https://lore.kernel.org/bpf/20240117130619.9403-2-conquistador@yandex-team.r... Signed-off-by: Alexei Starovoitov ast@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- .../selftests/bpf/progs/test_map_in_map.c | 26 +++++++++++++++++++ tools/testing/selftests/bpf/test_maps.c | 6 ++++- 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/bpf/progs/test_map_in_map.c b/tools/testing/selftests/bpf/progs/test_map_in_map.c index f416032ba858b..b295f9b721bf8 100644 --- a/tools/testing/selftests/bpf/progs/test_map_in_map.c +++ b/tools/testing/selftests/bpf/progs/test_map_in_map.c @@ -21,6 +21,32 @@ struct { __type(value, __u32); } mim_hash SEC(".maps");

+/* The following three maps are used to test + * perf_event_array map can be an inner + * map of hash/array_of_maps. + */ +struct perf_event_array { + __uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY); + __type(key, __u32); + __type(value, __u32); +} inner_map0 SEC(".maps"); + +struct { + __uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS); + __uint(max_entries, 1); + __type(key, __u32); + __array(values, struct perf_event_array); +} mim_array_pe SEC(".maps") = { + .values = {&inner_map0}}; + +struct { + __uint(type, BPF_MAP_TYPE_HASH_OF_MAPS); + __uint(max_entries, 1); + __type(key, __u32); + __array(values, struct perf_event_array); +} mim_hash_pe SEC(".maps") = { + .values = {&inner_map0}}; + SEC("xdp") int xdp_mimtest0(struct xdp_md *ctx) { diff --git a/tools/testing/selftests/bpf/test_maps.c b/tools/testing/selftests/bpf/test_maps.c index 7fc00e423e4dd..e0dd101c9f2bd 100644 --- a/tools/testing/selftests/bpf/test_maps.c +++ b/tools/testing/selftests/bpf/test_maps.c @@ -1190,7 +1190,11 @@ static void test_map_in_map(void) goto out_map_in_map; }

- bpf_object__load(obj); + err = bpf_object__load(obj); + if (err) { + printf("Failed to load test prog\n"); + goto out_map_in_map; + }

map = bpf_object__find_map_by_name(obj, "mim_array"); if (!map) {

From: Daniel Borkmann daniel@iogearbox.net

[ Upstream commit eee82da79f036bb49ff80d3088b9530e3c2e57eb ]

No functional changes to the test case, but just renaming various functions, variables, etc, to remove veth part of their name for making it more generic and reusable later on (e.g. for netkit).

Signed-off-by: Daniel Borkmann daniel@iogearbox.net Acked-by: Stanislav Fomichev sdf@google.com Reviewed-by: Nikolay Aleksandrov razor@blackwall.org Link: https://lore.kernel.org/r/20231114004220.6495-8-daniel@iogearbox.net Signed-off-by: Martin KaFai Lau martin.lau@kernel.org Stable-dep-of: 177f1d083a19 ("selftests/bpf: Fix the flaky tc_redirect_dtime test") Signed-off-by: Sasha Levin sashal@kernel.org --- .../selftests/bpf/prog_tests/tc_redirect.c | 263 +++++++++--------- 1 file changed, 137 insertions(+), 126 deletions(-)

diff --git a/tools/testing/selftests/bpf/prog_tests/tc_redirect.c b/tools/testing/selftests/bpf/prog_tests/tc_redirect.c index 6ee22c3b251ad..407ff4e9bc788 100644 --- a/tools/testing/selftests/bpf/prog_tests/tc_redirect.c +++ b/tools/testing/selftests/bpf/prog_tests/tc_redirect.c @@ -110,11 +110,16 @@ static void netns_setup_namespaces_nofail(const char *verb) } }

+enum dev_mode { + MODE_VETH, +}; + struct netns_setup_result { - int ifindex_veth_src; - int ifindex_veth_src_fwd; - int ifindex_veth_dst; - int ifindex_veth_dst_fwd; + enum dev_mode dev_mode; + int ifindex_src; + int ifindex_src_fwd; + int ifindex_dst; + int ifindex_dst_fwd; };

static int get_ifaddr(const char *name, char *ifaddr) @@ -140,55 +145,59 @@ static int get_ifaddr(const char *name, char *ifaddr) static int netns_setup_links_and_routes(struct netns_setup_result *result) { struct nstoken *nstoken = NULL; - char veth_src_fwd_addr[IFADDR_STR_LEN+1] = {}; + char src_fwd_addr[IFADDR_STR_LEN+1] = {};

- SYS(fail, "ip link add veth_src type veth peer name veth_src_fwd"); - SYS(fail, "ip link add veth_dst type veth peer name veth_dst_fwd"); + if (result->dev_mode == MODE_VETH) { + SYS(fail, "ip link add src type veth peer name src_fwd"); + SYS(fail, "ip link add dst type veth peer name dst_fwd");

- SYS(fail, "ip link set veth_dst_fwd address " MAC_DST_FWD); - SYS(fail, "ip link set veth_dst address " MAC_DST); + SYS(fail, "ip link set dst_fwd address " MAC_DST_FWD); + SYS(fail, "ip link set dst address " MAC_DST); + }

- if (get_ifaddr("veth_src_fwd", veth_src_fwd_addr)) + if (get_ifaddr("src_fwd", src_fwd_addr)) goto fail;

- result->ifindex_veth_src = if_nametoindex("veth_src"); - if (!ASSERT_GT(result->ifindex_veth_src, 0, "ifindex_veth_src")) + result->ifindex_src = if_nametoindex("src"); + if (!ASSERT_GT(result->ifindex_src, 0, "ifindex_src")) goto fail;

- result->ifindex_veth_src_fwd = if_nametoindex("veth_src_fwd"); - if (!ASSERT_GT(result->ifindex_veth_src_fwd, 0, "ifindex_veth_src_fwd")) + result->ifindex_src_fwd = if_nametoindex("src_fwd"); + if (!ASSERT_GT(result->ifindex_src_fwd, 0, "ifindex_src_fwd")) goto fail;

- result->ifindex_veth_dst = if_nametoindex("veth_dst"); - if (!ASSERT_GT(result->ifindex_veth_dst, 0, "ifindex_veth_dst")) + result->ifindex_dst = if_nametoindex("dst"); + if (!ASSERT_GT(result->ifindex_dst, 0, "ifindex_dst")) goto fail;

- result->ifindex_veth_dst_fwd = if_nametoindex("veth_dst_fwd"); - if (!ASSERT_GT(result->ifindex_veth_dst_fwd, 0, "ifindex_veth_dst_fwd")) + result->ifindex_dst_fwd = if_nametoindex("dst_fwd"); + if (!ASSERT_GT(result->ifindex_dst_fwd, 0, "ifindex_dst_fwd")) goto fail;

- SYS(fail, "ip link set veth_src netns " NS_SRC); - SYS(fail, "ip link set veth_src_fwd netns " NS_FWD); - SYS(fail, "ip link set veth_dst_fwd netns " NS_FWD); - SYS(fail, "ip link set veth_dst netns " NS_DST); + SYS(fail, "ip link set src netns " NS_SRC); + SYS(fail, "ip link set src_fwd netns " NS_FWD); + SYS(fail, "ip link set dst_fwd netns " NS_FWD); + SYS(fail, "ip link set dst netns " NS_DST);

/** setup in 'src' namespace */ nstoken = open_netns(NS_SRC); if (!ASSERT_OK_PTR(nstoken, "setns src")) goto fail;

- SYS(fail, "ip addr add " IP4_SRC "/32 dev veth_src"); - SYS(fail, "ip addr add " IP6_SRC "/128 dev veth_src nodad"); - SYS(fail, "ip link set dev veth_src up"); + SYS(fail, "ip addr add " IP4_SRC "/32 dev src"); + SYS(fail, "ip addr add " IP6_SRC "/128 dev src nodad"); + SYS(fail, "ip link set dev src up");

- SYS(fail, "ip route add " IP4_DST "/32 dev veth_src scope global"); - SYS(fail, "ip route add " IP4_NET "/16 dev veth_src scope global"); - SYS(fail, "ip route add " IP6_DST "/128 dev veth_src scope global"); + SYS(fail, "ip route add " IP4_DST "/32 dev src scope global"); + SYS(fail, "ip route add " IP4_NET "/16 dev src scope global"); + SYS(fail, "ip route add " IP6_DST "/128 dev src scope global");

- SYS(fail, "ip neigh add " IP4_DST " dev veth_src lladdr %s", - veth_src_fwd_addr); - SYS(fail, "ip neigh add " IP6_DST " dev veth_src lladdr %s", - veth_src_fwd_addr); + if (result->dev_mode == MODE_VETH) { + SYS(fail, "ip neigh add " IP4_DST " dev src lladdr %s", + src_fwd_addr); + SYS(fail, "ip neigh add " IP6_DST " dev src lladdr %s", + src_fwd_addr); + }

close_netns(nstoken);

@@ -201,15 +210,15 @@ static int netns_setup_links_and_routes(struct netns_setup_result *result) * needs v4 one in order to start ARP probing. IP4_NET route is added * to the endpoints so that the ARP processing will reply. */ - SYS(fail, "ip addr add " IP4_SLL "/32 dev veth_src_fwd"); - SYS(fail, "ip addr add " IP4_DLL "/32 dev veth_dst_fwd"); - SYS(fail, "ip link set dev veth_src_fwd up"); - SYS(fail, "ip link set dev veth_dst_fwd up"); + SYS(fail, "ip addr add " IP4_SLL "/32 dev src_fwd"); + SYS(fail, "ip addr add " IP4_DLL "/32 dev dst_fwd"); + SYS(fail, "ip link set dev src_fwd up"); + SYS(fail, "ip link set dev dst_fwd up");

- SYS(fail, "ip route add " IP4_SRC "/32 dev veth_src_fwd scope global"); - SYS(fail, "ip route add " IP6_SRC "/128 dev veth_src_fwd scope global"); - SYS(fail, "ip route add " IP4_DST "/32 dev veth_dst_fwd scope global"); - SYS(fail, "ip route add " IP6_DST "/128 dev veth_dst_fwd scope global"); + SYS(fail, "ip route add " IP4_SRC "/32 dev src_fwd scope global"); + SYS(fail, "ip route add " IP6_SRC "/128 dev src_fwd scope global"); + SYS(fail, "ip route add " IP4_DST "/32 dev dst_fwd scope global"); + SYS(fail, "ip route add " IP6_DST "/128 dev dst_fwd scope global");

close_netns(nstoken);

@@ -218,16 +227,18 @@ static int netns_setup_links_and_routes(struct netns_setup_result *result) if (!ASSERT_OK_PTR(nstoken, "setns dst")) goto fail;

- SYS(fail, "ip addr add " IP4_DST "/32 dev veth_dst"); - SYS(fail, "ip addr add " IP6_DST "/128 dev veth_dst nodad"); - SYS(fail, "ip link set dev veth_dst up"); + SYS(fail, "ip addr add " IP4_DST "/32 dev dst"); + SYS(fail, "ip addr add " IP6_DST "/128 dev dst nodad"); + SYS(fail, "ip link set dev dst up");

- SYS(fail, "ip route add " IP4_SRC "/32 dev veth_dst scope global"); - SYS(fail, "ip route add " IP4_NET "/16 dev veth_dst scope global"); - SYS(fail, "ip route add " IP6_SRC "/128 dev veth_dst scope global"); + SYS(fail, "ip route add " IP4_SRC "/32 dev dst scope global"); + SYS(fail, "ip route add " IP4_NET "/16 dev dst scope global"); + SYS(fail, "ip route add " IP6_SRC "/128 dev dst scope global");

- SYS(fail, "ip neigh add " IP4_SRC " dev veth_dst lladdr " MAC_DST_FWD); - SYS(fail, "ip neigh add " IP6_SRC " dev veth_dst lladdr " MAC_DST_FWD); + if (result->dev_mode == MODE_VETH) { + SYS(fail, "ip neigh add " IP4_SRC " dev dst lladdr " MAC_DST_FWD); + SYS(fail, "ip neigh add " IP6_SRC " dev dst lladdr " MAC_DST_FWD); + }

close_netns(nstoken);

@@ -293,23 +304,23 @@ static int netns_load_bpf(const struct bpf_program *src_prog, const struct bpf_program *chk_prog, const struct netns_setup_result *setup_result) { - LIBBPF_OPTS(bpf_tc_hook, qdisc_veth_src_fwd); - LIBBPF_OPTS(bpf_tc_hook, qdisc_veth_dst_fwd); + LIBBPF_OPTS(bpf_tc_hook, qdisc_src_fwd); + LIBBPF_OPTS(bpf_tc_hook, qdisc_dst_fwd); int err;

- /* tc qdisc add dev veth_src_fwd clsact */ - QDISC_CLSACT_CREATE(&qdisc_veth_src_fwd, setup_result->ifindex_veth_src_fwd); - /* tc filter add dev veth_src_fwd ingress bpf da src_prog */ - XGRESS_FILTER_ADD(&qdisc_veth_src_fwd, BPF_TC_INGRESS, src_prog, 0); - /* tc filter add dev veth_src_fwd egress bpf da chk_prog */ - XGRESS_FILTER_ADD(&qdisc_veth_src_fwd, BPF_TC_EGRESS, chk_prog, 0); + /* tc qdisc add dev src_fwd clsact */ + QDISC_CLSACT_CREATE(&qdisc_src_fwd, setup_result->ifindex_src_fwd); + /* tc filter add dev src_fwd ingress bpf da src_prog */ + XGRESS_FILTER_ADD(&qdisc_src_fwd, BPF_TC_INGRESS, src_prog, 0); + /* tc filter add dev src_fwd egress bpf da chk_prog */ + XGRESS_FILTER_ADD(&qdisc_src_fwd, BPF_TC_EGRESS, chk_prog, 0);

- /* tc qdisc add dev veth_dst_fwd clsact */ - QDISC_CLSACT_CREATE(&qdisc_veth_dst_fwd, setup_result->ifindex_veth_dst_fwd); - /* tc filter add dev veth_dst_fwd ingress bpf da dst_prog */ - XGRESS_FILTER_ADD(&qdisc_veth_dst_fwd, BPF_TC_INGRESS, dst_prog, 0); - /* tc filter add dev veth_dst_fwd egress bpf da chk_prog */ - XGRESS_FILTER_ADD(&qdisc_veth_dst_fwd, BPF_TC_EGRESS, chk_prog, 0); + /* tc qdisc add dev dst_fwd clsact */ + QDISC_CLSACT_CREATE(&qdisc_dst_fwd, setup_result->ifindex_dst_fwd); + /* tc filter add dev dst_fwd ingress bpf da dst_prog */ + XGRESS_FILTER_ADD(&qdisc_dst_fwd, BPF_TC_INGRESS, dst_prog, 0); + /* tc filter add dev dst_fwd egress bpf da chk_prog */ + XGRESS_FILTER_ADD(&qdisc_dst_fwd, BPF_TC_EGRESS, chk_prog, 0);

return 0; fail: @@ -539,10 +550,10 @@ static void test_inet_dtime(int family, int type, const char *addr, __u16 port) static int netns_load_dtime_bpf(struct test_tc_dtime *skel, const struct netns_setup_result *setup_result) { - LIBBPF_OPTS(bpf_tc_hook, qdisc_veth_src_fwd); - LIBBPF_OPTS(bpf_tc_hook, qdisc_veth_dst_fwd); - LIBBPF_OPTS(bpf_tc_hook, qdisc_veth_src); - LIBBPF_OPTS(bpf_tc_hook, qdisc_veth_dst); + LIBBPF_OPTS(bpf_tc_hook, qdisc_src_fwd); + LIBBPF_OPTS(bpf_tc_hook, qdisc_dst_fwd); + LIBBPF_OPTS(bpf_tc_hook, qdisc_src); + LIBBPF_OPTS(bpf_tc_hook, qdisc_dst); struct nstoken *nstoken; int err;

@@ -550,58 +561,58 @@ static int netns_load_dtime_bpf(struct test_tc_dtime *skel, nstoken = open_netns(NS_SRC); if (!ASSERT_OK_PTR(nstoken, "setns " NS_SRC)) return -1; - /* tc qdisc add dev veth_src clsact */ - QDISC_CLSACT_CREATE(&qdisc_veth_src, setup_result->ifindex_veth_src); - /* tc filter add dev veth_src ingress bpf da ingress_host */ - XGRESS_FILTER_ADD(&qdisc_veth_src, BPF_TC_INGRESS, skel->progs.ingress_host, 0); - /* tc filter add dev veth_src egress bpf da egress_host */ - XGRESS_FILTER_ADD(&qdisc_veth_src, BPF_TC_EGRESS, skel->progs.egress_host, 0); + /* tc qdisc add dev src clsact */ + QDISC_CLSACT_CREATE(&qdisc_src, setup_result->ifindex_src); + /* tc filter add dev src ingress bpf da ingress_host */ + XGRESS_FILTER_ADD(&qdisc_src, BPF_TC_INGRESS, skel->progs.ingress_host, 0); + /* tc filter add dev src egress bpf da egress_host */ + XGRESS_FILTER_ADD(&qdisc_src, BPF_TC_EGRESS, skel->progs.egress_host, 0); close_netns(nstoken);

/* setup ns_dst tc progs */ nstoken = open_netns(NS_DST); if (!ASSERT_OK_PTR(nstoken, "setns " NS_DST)) return -1; - /* tc qdisc add dev veth_dst clsact */ - QDISC_CLSACT_CREATE(&qdisc_veth_dst, setup_result->ifindex_veth_dst); - /* tc filter add dev veth_dst ingress bpf da ingress_host */ - XGRESS_FILTER_ADD(&qdisc_veth_dst, BPF_TC_INGRESS, skel->progs.ingress_host, 0); - /* tc filter add dev veth_dst egress bpf da egress_host */ - XGRESS_FILTER_ADD(&qdisc_veth_dst, BPF_TC_EGRESS, skel->progs.egress_host, 0); + /* tc qdisc add dev dst clsact */ + QDISC_CLSACT_CREATE(&qdisc_dst, setup_result->ifindex_dst); + /* tc filter add dev dst ingress bpf da ingress_host */ + XGRESS_FILTER_ADD(&qdisc_dst, BPF_TC_INGRESS, skel->progs.ingress_host, 0); + /* tc filter add dev dst egress bpf da egress_host */ + XGRESS_FILTER_ADD(&qdisc_dst, BPF_TC_EGRESS, skel->progs.egress_host, 0); close_netns(nstoken);

/* setup ns_fwd tc progs */ nstoken = open_netns(NS_FWD); if (!ASSERT_OK_PTR(nstoken, "setns " NS_FWD)) return -1; - /* tc qdisc add dev veth_dst_fwd clsact */ - QDISC_CLSACT_CREATE(&qdisc_veth_dst_fwd, setup_result->ifindex_veth_dst_fwd); - /* tc filter add dev veth_dst_fwd ingress prio 100 bpf da ingress_fwdns_prio100 */ - XGRESS_FILTER_ADD(&qdisc_veth_dst_fwd, BPF_TC_INGRESS, + /* tc qdisc add dev dst_fwd clsact */ + QDISC_CLSACT_CREATE(&qdisc_dst_fwd, setup_result->ifindex_dst_fwd); + /* tc filter add dev dst_fwd ingress prio 100 bpf da ingress_fwdns_prio100 */ + XGRESS_FILTER_ADD(&qdisc_dst_fwd, BPF_TC_INGRESS, skel->progs.ingress_fwdns_prio100, 100); - /* tc filter add dev veth_dst_fwd ingress prio 101 bpf da ingress_fwdns_prio101 */ - XGRESS_FILTER_ADD(&qdisc_veth_dst_fwd, BPF_TC_INGRESS, + /* tc filter add dev dst_fwd ingress prio 101 bpf da ingress_fwdns_prio101 */ + XGRESS_FILTER_ADD(&qdisc_dst_fwd, BPF_TC_INGRESS, skel->progs.ingress_fwdns_prio101, 101); - /* tc filter add dev veth_dst_fwd egress prio 100 bpf da egress_fwdns_prio100 */ - XGRESS_FILTER_ADD(&qdisc_veth_dst_fwd, BPF_TC_EGRESS, + /* tc filter add dev dst_fwd egress prio 100 bpf da egress_fwdns_prio100 */ + XGRESS_FILTER_ADD(&qdisc_dst_fwd, BPF_TC_EGRESS, skel->progs.egress_fwdns_prio100, 100); - /* tc filter add dev veth_dst_fwd egress prio 101 bpf da egress_fwdns_prio101 */ - XGRESS_FILTER_ADD(&qdisc_veth_dst_fwd, BPF_TC_EGRESS, + /* tc filter add dev dst_fwd egress prio 101 bpf da egress_fwdns_prio101 */ + XGRESS_FILTER_ADD(&qdisc_dst_fwd, BPF_TC_EGRESS, skel->progs.egress_fwdns_prio101, 101);

- /* tc qdisc add dev veth_src_fwd clsact */ - QDISC_CLSACT_CREATE(&qdisc_veth_src_fwd, setup_result->ifindex_veth_src_fwd); - /* tc filter add dev veth_src_fwd ingress prio 100 bpf da ingress_fwdns_prio100 */ - XGRESS_FILTER_ADD(&qdisc_veth_src_fwd, BPF_TC_INGRESS, + /* tc qdisc add dev src_fwd clsact */ + QDISC_CLSACT_CREATE(&qdisc_src_fwd, setup_result->ifindex_src_fwd); + /* tc filter add dev src_fwd ingress prio 100 bpf da ingress_fwdns_prio100 */ + XGRESS_FILTER_ADD(&qdisc_src_fwd, BPF_TC_INGRESS, skel->progs.ingress_fwdns_prio100, 100); - /* tc filter add dev veth_src_fwd ingress prio 101 bpf da ingress_fwdns_prio101 */ - XGRESS_FILTER_ADD(&qdisc_veth_src_fwd, BPF_TC_INGRESS, + /* tc filter add dev src_fwd ingress prio 101 bpf da ingress_fwdns_prio101 */ + XGRESS_FILTER_ADD(&qdisc_src_fwd, BPF_TC_INGRESS, skel->progs.ingress_fwdns_prio101, 101); - /* tc filter add dev veth_src_fwd egress prio 100 bpf da egress_fwdns_prio100 */ - XGRESS_FILTER_ADD(&qdisc_veth_src_fwd, BPF_TC_EGRESS, + /* tc filter add dev src_fwd egress prio 100 bpf da egress_fwdns_prio100 */ + XGRESS_FILTER_ADD(&qdisc_src_fwd, BPF_TC_EGRESS, skel->progs.egress_fwdns_prio100, 100); - /* tc filter add dev veth_src_fwd egress prio 101 bpf da egress_fwdns_prio101 */ - XGRESS_FILTER_ADD(&qdisc_veth_src_fwd, BPF_TC_EGRESS, + /* tc filter add dev src_fwd egress prio 101 bpf da egress_fwdns_prio101 */ + XGRESS_FILTER_ADD(&qdisc_src_fwd, BPF_TC_EGRESS, skel->progs.egress_fwdns_prio101, 101); close_netns(nstoken); return 0; @@ -777,8 +788,8 @@ static void test_tc_redirect_dtime(struct netns_setup_result *setup_result) if (!ASSERT_OK_PTR(skel, "test_tc_dtime__open")) return;

- skel->rodata->IFINDEX_SRC = setup_result->ifindex_veth_src_fwd; - skel->rodata->IFINDEX_DST = setup_result->ifindex_veth_dst_fwd; + skel->rodata->IFINDEX_SRC = setup_result->ifindex_src_fwd; + skel->rodata->IFINDEX_DST = setup_result->ifindex_dst_fwd;

err = test_tc_dtime__load(skel); if (!ASSERT_OK(err, "test_tc_dtime__load")) @@ -868,8 +879,8 @@ static void test_tc_redirect_neigh(struct netns_setup_result *setup_result) if (!ASSERT_OK_PTR(skel, "test_tc_neigh__open")) goto done;

- skel->rodata->IFINDEX_SRC = setup_result->ifindex_veth_src_fwd; - skel->rodata->IFINDEX_DST = setup_result->ifindex_veth_dst_fwd; + skel->rodata->IFINDEX_SRC = setup_result->ifindex_src_fwd; + skel->rodata->IFINDEX_DST = setup_result->ifindex_dst_fwd;

err = test_tc_neigh__load(skel); if (!ASSERT_OK(err, "test_tc_neigh__load")) @@ -904,8 +915,8 @@ static void test_tc_redirect_peer(struct netns_setup_result *setup_result) if (!ASSERT_OK_PTR(skel, "test_tc_peer__open")) goto done;

- skel->rodata->IFINDEX_SRC = setup_result->ifindex_veth_src_fwd; - skel->rodata->IFINDEX_DST = setup_result->ifindex_veth_dst_fwd; + skel->rodata->IFINDEX_SRC = setup_result->ifindex_src_fwd; + skel->rodata->IFINDEX_DST = setup_result->ifindex_dst_fwd;

err = test_tc_peer__load(skel); if (!ASSERT_OK(err, "test_tc_peer__load")) @@ -996,7 +1007,7 @@ static int tun_relay_loop(int src_fd, int target_fd) static void test_tc_redirect_peer_l3(struct netns_setup_result *setup_result) { LIBBPF_OPTS(bpf_tc_hook, qdisc_tun_fwd); - LIBBPF_OPTS(bpf_tc_hook, qdisc_veth_dst_fwd); + LIBBPF_OPTS(bpf_tc_hook, qdisc_dst_fwd); struct test_tc_peer *skel = NULL; struct nstoken *nstoken = NULL; int err; @@ -1045,7 +1056,7 @@ static void test_tc_redirect_peer_l3(struct netns_setup_result *setup_result) goto fail;

skel->rodata->IFINDEX_SRC = ifindex; - skel->rodata->IFINDEX_DST = setup_result->ifindex_veth_dst_fwd; + skel->rodata->IFINDEX_DST = setup_result->ifindex_dst_fwd;

err = test_tc_peer__load(skel); if (!ASSERT_OK(err, "test_tc_peer__load")) @@ -1053,19 +1064,19 @@ static void test_tc_redirect_peer_l3(struct netns_setup_result *setup_result)

/* Load "tc_src_l3" to the tun_fwd interface to redirect packets * towards dst, and "tc_dst" to redirect packets - * and "tc_chk" on veth_dst_fwd to drop non-redirected packets. + * and "tc_chk" on dst_fwd to drop non-redirected packets. */ /* tc qdisc add dev tun_fwd clsact */ QDISC_CLSACT_CREATE(&qdisc_tun_fwd, ifindex); /* tc filter add dev tun_fwd ingress bpf da tc_src_l3 */ XGRESS_FILTER_ADD(&qdisc_tun_fwd, BPF_TC_INGRESS, skel->progs.tc_src_l3, 0);

- /* tc qdisc add dev veth_dst_fwd clsact */ - QDISC_CLSACT_CREATE(&qdisc_veth_dst_fwd, setup_result->ifindex_veth_dst_fwd); - /* tc filter add dev veth_dst_fwd ingress bpf da tc_dst_l3 */ - XGRESS_FILTER_ADD(&qdisc_veth_dst_fwd, BPF_TC_INGRESS, skel->progs.tc_dst_l3, 0); - /* tc filter add dev veth_dst_fwd egress bpf da tc_chk */ - XGRESS_FILTER_ADD(&qdisc_veth_dst_fwd, BPF_TC_EGRESS, skel->progs.tc_chk, 0); + /* tc qdisc add dev dst_fwd clsact */ + QDISC_CLSACT_CREATE(&qdisc_dst_fwd, setup_result->ifindex_dst_fwd); + /* tc filter add dev dst_fwd ingress bpf da tc_dst_l3 */ + XGRESS_FILTER_ADD(&qdisc_dst_fwd, BPF_TC_INGRESS, skel->progs.tc_dst_l3, 0); + /* tc filter add dev dst_fwd egress bpf da tc_chk */ + XGRESS_FILTER_ADD(&qdisc_dst_fwd, BPF_TC_EGRESS, skel->progs.tc_chk, 0);

/* Setup route and neigh tables */ SYS(fail, "ip -netns " NS_SRC " addr add dev tun_src " IP4_TUN_SRC "/24"); @@ -1074,17 +1085,17 @@ static void test_tc_redirect_peer_l3(struct netns_setup_result *setup_result) SYS(fail, "ip -netns " NS_SRC " addr add dev tun_src " IP6_TUN_SRC "/64 nodad"); SYS(fail, "ip -netns " NS_FWD " addr add dev tun_fwd " IP6_TUN_FWD "/64 nodad");

- SYS(fail, "ip -netns " NS_SRC " route del " IP4_DST "/32 dev veth_src scope global"); + SYS(fail, "ip -netns " NS_SRC " route del " IP4_DST "/32 dev src scope global"); SYS(fail, "ip -netns " NS_SRC " route add " IP4_DST "/32 via " IP4_TUN_FWD " dev tun_src scope global"); - SYS(fail, "ip -netns " NS_DST " route add " IP4_TUN_SRC "/32 dev veth_dst scope global"); - SYS(fail, "ip -netns " NS_SRC " route del " IP6_DST "/128 dev veth_src scope global"); + SYS(fail, "ip -netns " NS_DST " route add " IP4_TUN_SRC "/32 dev dst scope global"); + SYS(fail, "ip -netns " NS_SRC " route del " IP6_DST "/128 dev src scope global"); SYS(fail, "ip -netns " NS_SRC " route add " IP6_DST "/128 via " IP6_TUN_FWD " dev tun_src scope global"); - SYS(fail, "ip -netns " NS_DST " route add " IP6_TUN_SRC "/128 dev veth_dst scope global"); + SYS(fail, "ip -netns " NS_DST " route add " IP6_TUN_SRC "/128 dev dst scope global");

- SYS(fail, "ip -netns " NS_DST " neigh add " IP4_TUN_SRC " dev veth_dst lladdr " MAC_DST_FWD); - SYS(fail, "ip -netns " NS_DST " neigh add " IP6_TUN_SRC " dev veth_dst lladdr " MAC_DST_FWD); + SYS(fail, "ip -netns " NS_DST " neigh add " IP4_TUN_SRC " dev dst lladdr " MAC_DST_FWD); + SYS(fail, "ip -netns " NS_DST " neigh add " IP6_TUN_SRC " dev dst lladdr " MAC_DST_FWD);

if (!ASSERT_OK(set_forwarding(false), "disable forwarding")) goto fail; @@ -1106,9 +1117,9 @@ static void test_tc_redirect_peer_l3(struct netns_setup_result *setup_result) close_netns(nstoken); }

-#define RUN_TEST(name) \ +#define RUN_TEST(name, mode) \ ({ \ - struct netns_setup_result setup_result; \ + struct netns_setup_result setup_result = { .dev_mode = mode, }; \ if (test__start_subtest(#name)) \ if (ASSERT_OK(netns_setup_namespaces("add"), "setup namespaces")) { \ if (ASSERT_OK(netns_setup_links_and_routes(&setup_result), \ @@ -1122,11 +1133,11 @@ static void *test_tc_redirect_run_tests(void *arg) { netns_setup_namespaces_nofail("delete");

- RUN_TEST(tc_redirect_peer); - RUN_TEST(tc_redirect_peer_l3); - RUN_TEST(tc_redirect_neigh); - RUN_TEST(tc_redirect_neigh_fib); - RUN_TEST(tc_redirect_dtime); + RUN_TEST(tc_redirect_peer, MODE_VETH); + RUN_TEST(tc_redirect_peer_l3, MODE_VETH); + RUN_TEST(tc_redirect_neigh, MODE_VETH); + RUN_TEST(tc_redirect_neigh_fib, MODE_VETH); + RUN_TEST(tc_redirect_dtime, MODE_VETH); return NULL; }

From: Martin KaFai Lau martin.lau@kernel.org

[ Upstream commit 177f1d083a19af58f4b1206d299ed73689249fd8 ]

BPF CI has been reporting the tc_redirect_dtime test failing from time to time:

test_inet_dtime:PASS:setns src 0 nsec (network_helpers.c:253: errno: No route to host) Failed to connect to server close_netns:PASS:setns 0 nsec test_inet_dtime:FAIL:connect_to_fd unexpected connect_to_fd: actual -1 < expected 0 test_tcp_clear_dtime:PASS:tcp ip6 clear dtime ingress_fwdns_p100 0 nsec

The connect_to_fd failure (EHOSTUNREACH) is from the test_tcp_clear_dtime() test and it is the very first IPv6 traffic after setting up all the links, addresses, and routes.

The symptom is this first connect() is always slow. In my setup, it could take ~3s.

After some tracing and tcpdump, the slowness is mostly spent in the neighbor solicitation in the "ns_fwd" namespace while the "ns_src" and "ns_dst" are fine.

I forced the kernel to drop the neighbor solicitation messages. I can then reproduce EHOSTUNREACH. What actually happen could be: - the neighbor advertisement came back a little slow. - the "ns_fwd" namespace concluded a neighbor discovery failure and triggered the ndisc_error_report() => ip6_link_failure() => icmpv6_send(skb, ICMPV6_DEST_UNREACH, ICMPV6_ADDR_UNREACH, 0) - the client's connect() reports EHOSTUNREACH after receiving the ICMPV6_DEST_UNREACH message.

The neigh table of both "ns_src" and "ns_dst" namespace has already been manually populated but not the "ns_fwd" namespace. This patch fixes it by manually populating the neigh table also in the "ns_fwd" namespace.

Although the namespace configuration part had been existed before the tc_redirect_dtime test, still Fixes-tagging the patch when the tc_redirect_dtime test was added since it is the only test hitting it so far.

Fixes: c803475fd8dd ("bpf: selftests: test skb->tstamp in redirect_neigh") Signed-off-by: Martin KaFai Lau martin.lau@kernel.org Signed-off-by: Andrii Nakryiko andrii@kernel.org Link: https://lore.kernel.org/bpf/20240120060518.3604920-1-martin.lau@linux.dev Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/bpf/prog_tests/tc_redirect.c | 11 +++++++++++ 1 file changed, 11 insertions(+)

diff --git a/tools/testing/selftests/bpf/prog_tests/tc_redirect.c b/tools/testing/selftests/bpf/prog_tests/tc_redirect.c index 518f143c5b0fe..610887157fd85 100644 --- a/tools/testing/selftests/bpf/prog_tests/tc_redirect.c +++ b/tools/testing/selftests/bpf/prog_tests/tc_redirect.c @@ -188,6 +188,7 @@ static int netns_setup_links_and_routes(struct netns_setup_result *result) { struct nstoken *nstoken = NULL; char src_fwd_addr[IFADDR_STR_LEN+1] = {}; + char src_addr[IFADDR_STR_LEN + 1] = {}; int err;

if (result->dev_mode == MODE_VETH) { @@ -208,6 +209,9 @@ static int netns_setup_links_and_routes(struct netns_setup_result *result) if (get_ifaddr("src_fwd", src_fwd_addr)) goto fail;

+ if (get_ifaddr("src", src_addr)) + goto fail; + result->ifindex_src = if_nametoindex("src"); if (!ASSERT_GT(result->ifindex_src, 0, "ifindex_src")) goto fail; @@ -270,6 +274,13 @@ static int netns_setup_links_and_routes(struct netns_setup_result *result) SYS(fail, "ip route add " IP4_DST "/32 dev dst_fwd scope global"); SYS(fail, "ip route add " IP6_DST "/128 dev dst_fwd scope global");

+ if (result->dev_mode == MODE_VETH) { + SYS(fail, "ip neigh add " IP4_SRC " dev src_fwd lladdr %s", src_addr); + SYS(fail, "ip neigh add " IP6_SRC " dev src_fwd lladdr %s", src_addr); + SYS(fail, "ip neigh add " IP4_DST " dev dst_fwd lladdr %s", MAC_DST); + SYS(fail, "ip neigh add " IP6_DST " dev dst_fwd lladdr %s", MAC_DST); + } + close_netns(nstoken);

/** setup in 'dst' namespace */

From: Kuniyuki Iwashima kuniyu@amazon.com

[ Upstream commit 31e03207119a535d0b0e3b3a7f91983aeb2cb14d ]

gc_in_progress is changed under spin_lock(&unix_gc_lock), but wait_for_unix_gc() reads it locklessly.

Let's use READ_ONCE().

Fixes: 5f23b734963e ("net: Fix soft lockups/OOM issues w/ unix garbage collector") Signed-off-by: Kuniyuki Iwashima kuniyu@amazon.com Link: https://lore.kernel.org/r/20240123170856.41348-2-kuniyu@amazon.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/unix/garbage.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/unix/garbage.c b/net/unix/garbage.c index 2a81880dac7b7..027c86e804f8a 100644 --- a/net/unix/garbage.c +++ b/net/unix/garbage.c @@ -198,7 +198,7 @@ void wait_for_unix_gc(void) if (READ_ONCE(unix_tot_inflight) > UNIX_INFLIGHT_TRIGGER_GC && !READ_ONCE(gc_in_progress)) unix_gc(); - wait_event(unix_gc_wait, gc_in_progress == false); + wait_event(unix_gc_wait, !READ_ONCE(gc_in_progress)); }

/* The external entry point: unix_gc() */

From: Dmitry Baryshkov dmitry.baryshkov@linaro.org

[ Upstream commit 5155e48128826d0c5999dc9f47aa746df54da448 ]

It seems, the only actual mentions of PM2250 can be found are related to the Qualcomm RB1 platform. However even RB1 schematics use PM4125 as a PMIC name. Rename PM2250 to PM4125 to follow the documentation.

Fixes: 082f9bc60f33 ("soc: qcom: spmi-pmic: add more PMIC SUBTYPE IDs") Fixes: 112d96fd2927 ("soc: qcom: socinfo: Add some PMICs") Acked-by: Konrad Dybcio konrad.dybcio@linaro.org Signed-off-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org Link: https://lore.kernel.org/r/20240128-pm2250-pm4125-rename-v2-1-d51987e9f83a@li... Signed-off-by: Bjorn Andersson andersson@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/soc/qcom/socinfo.c | 2 +- include/soc/qcom/qcom-spmi-pmic.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/qcom/socinfo.c b/drivers/soc/qcom/socinfo.c index 497cfb720fcb0..880b41a57da01 100644 --- a/drivers/soc/qcom/socinfo.c +++ b/drivers/soc/qcom/socinfo.c @@ -114,7 +114,7 @@ static const char *const pmic_models[] = { [50] = "PM8350B", [51] = "PMR735A", [52] = "PMR735B", - [55] = "PM2250", + [55] = "PM4125", [58] = "PM8450", [65] = "PM8010", }; diff --git a/include/soc/qcom/qcom-spmi-pmic.h b/include/soc/qcom/qcom-spmi-pmic.h index c47cc71a999ec..fdd462b295927 100644 --- a/include/soc/qcom/qcom-spmi-pmic.h +++ b/include/soc/qcom/qcom-spmi-pmic.h @@ -48,7 +48,7 @@ #define PMK8350_SUBTYPE 0x2f #define PMR735B_SUBTYPE 0x34 #define PM6350_SUBTYPE 0x36 -#define PM2250_SUBTYPE 0x37 +#define PM4125_SUBTYPE 0x37

#define PMI8998_FAB_ID_SMIC 0x11 #define PMI8998_FAB_ID_GF 0x30

From: Nícolas F. R. A. Prado nfraprado@collabora.com

[ Upstream commit eaffb10b51bf74415c9252fd8fb4dd77122501ee ]

devm_regulator_get_optional() returns -ENODEV if no supply can be found. By introducing its usage, commit 788715b5f21c ("cpufreq: mediatek-hw: Wait for CPU supplies before probing") caused the driver to fail probe if no supply was present in any of the CPU DT nodes.

Use devm_regulator_get() instead since the CPUs do require supplies even if not described in the DT. It will gracefully return a dummy regulator if none is found in the DT node, allowing probe to succeed.

Fixes: 788715b5f21c ("cpufreq: mediatek-hw: Wait for CPU supplies before probing") Reported-by: kernelci.org bot bot@kernelci.org Closes: https://linux.kernelci.org/test/case/id/65b0b169710edea22852a3fa/ Signed-off-by: Nícolas F. R. A. Prado nfraprado@collabora.com Reviewed-by: AngeloGioacchino Del Regno angelogioacchino.delregno@collabora.com Signed-off-by: Viresh Kumar viresh.kumar@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/cpufreq/mediatek-cpufreq-hw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cpufreq/mediatek-cpufreq-hw.c b/drivers/cpufreq/mediatek-cpufreq-hw.c index a1aa9385980ae..8d097dcddda47 100644 --- a/drivers/cpufreq/mediatek-cpufreq-hw.c +++ b/drivers/cpufreq/mediatek-cpufreq-hw.c @@ -312,7 +312,7 @@ static int mtk_cpufreq_hw_driver_probe(struct platform_device *pdev) return dev_err_probe(&pdev->dev, -EPROBE_DEFER, "Failed to get cpu%d device\n", cpu);

- cpu_reg = devm_regulator_get_optional(cpu_dev, "cpu"); + cpu_reg = devm_regulator_get(cpu_dev, "cpu"); if (IS_ERR(cpu_reg)) return dev_err_probe(&pdev->dev, PTR_ERR(cpu_reg), "CPU%d regulator get failed\n", cpu);

From: Bjorn Andersson quic_bjorande@quicinc.com

[ Upstream commit 883957bee580b723fd87d49ac73e0c84fc03a446 ]

On SA8295P and SA8540P gfx.lvl is not provdied by rpmh, but rather is handled by an external regulator (max20411). Drop gfx.lvl from the list of power-domains exposed on this platform.

Fixes: f68f1cb3437d ("soc: qcom: rpmhpd: add sc8280xp & sa8540p rpmh power-domains") Reviewed-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org Acked-by: Ulf Hansson ulf.hansson@linaro.org Reviewed-by: Konrad Dybcio konrad.dybcio@linaro.org Link: https://lore.kernel.org/r/20240125-sa8295p-gpu-v4-4-7011c2a63037@quicinc.com Signed-off-by: Bjorn Andersson quic_bjorande@quicinc.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pmdomain/qcom/rpmhpd.c | 1 - 1 file changed, 1 deletion(-)

diff --git a/drivers/pmdomain/qcom/rpmhpd.c b/drivers/pmdomain/qcom/rpmhpd.c index 2a811666bc9d0..efca30c185a15 100644 --- a/drivers/pmdomain/qcom/rpmhpd.c +++ b/drivers/pmdomain/qcom/rpmhpd.c @@ -207,7 +207,6 @@ static struct rpmhpd *sa8540p_rpmhpds[] = { [SC8280XP_CX] = &cx, [SC8280XP_CX_AO] = &cx_ao, [SC8280XP_EBI] = &ebi, - [SC8280XP_GFX] = &gfx, [SC8280XP_LCX] = &lcx, [SC8280XP_LMX] = &lmx, [SC8280XP_MMCX] = &mmcx,

From: Geert Uytterhoeven geert+renesas@glider.be

[ Upstream commit 8b93657c976a61726d7ffbe8d019b84b4abfb673 ]

Numerical by unit address, alphabetical by node name.

Signed-off-by: Geert Uytterhoeven geert+renesas@glider.be Link: https://lore.kernel.org/r/f00ef274a73c8fd60f940a1649423a8927b9ae8a.170532470... Stable-dep-of: 08e799f6bce8 ("arm64: dts: renesas: r8a779g0: Add missing SCIF_CLK2") Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/renesas/r8a779g0.dtsi | 72 +++++++++++------------ 1 file changed, 36 insertions(+), 36 deletions(-)

diff --git a/arch/arm64/boot/dts/renesas/r8a779g0.dtsi b/arch/arm64/boot/dts/renesas/r8a779g0.dtsi index d3d25e077c5d5..3be1159982b20 100644 --- a/arch/arm64/boot/dts/renesas/r8a779g0.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a779g0.dtsi @@ -161,11 +161,6 @@ L3_CA76_1: cache-controller-1 { }; };

- psci { - compatible = "arm,psci-1.0", "arm,psci-0.2"; - method = "smc"; - }; - extal_clk: extal { compatible = "fixed-clock"; #clock-cells = <0>; @@ -185,6 +180,11 @@ pmu_a76 { interrupts-extended = <&gic GIC_PPI 7 IRQ_TYPE_LEVEL_LOW>; };

+ psci { + compatible = "arm,psci-1.0", "arm,psci-0.2"; + method = "smc"; + }; + /* External SCIF clock - to be overridden by boards that provide it */ scif_clk: scif { compatible = "fixed-clock"; @@ -1777,6 +1777,37 @@ ssi0: ssi-0 { }; };

+ mmc0: mmc@ee140000 { + compatible = "renesas,sdhi-r8a779g0", + "renesas,rcar-gen4-sdhi"; + reg = <0 0xee140000 0 0x2000>; + interrupts = <GIC_SPI 440 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cpg CPG_MOD 706>, + <&cpg CPG_CORE R8A779G0_CLK_SD0H>; + clock-names = "core", "clkh"; + power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>; + resets = <&cpg 706>; + max-frequency = <200000000>; + iommus = <&ipmmu_ds0 32>; + status = "disabled"; + }; + + rpc: spi@ee200000 { + compatible = "renesas,r8a779g0-rpc-if", + "renesas,rcar-gen4-rpc-if"; + reg = <0 0xee200000 0 0x200>, + <0 0x08000000 0 0x04000000>, + <0 0xee208000 0 0x100>; + reg-names = "regs", "dirmap", "wbuf"; + interrupts = <GIC_SPI 225 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cpg CPG_MOD 629>; + power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>; + resets = <&cpg 629>; + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + }; + ipmmu_rt0: iommu@ee480000 { compatible = "renesas,ipmmu-r8a779g0", "renesas,rcar-gen4-ipmmu-vmsa"; @@ -1886,37 +1917,6 @@ ipmmu_mm: iommu@eefc0000 { #iommu-cells = <1>; };

- mmc0: mmc@ee140000 { - compatible = "renesas,sdhi-r8a779g0", - "renesas,rcar-gen4-sdhi"; - reg = <0 0xee140000 0 0x2000>; - interrupts = <GIC_SPI 440 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&cpg CPG_MOD 706>, - <&cpg CPG_CORE R8A779G0_CLK_SD0H>; - clock-names = "core", "clkh"; - power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>; - resets = <&cpg 706>; - max-frequency = <200000000>; - iommus = <&ipmmu_ds0 32>; - status = "disabled"; - }; - - rpc: spi@ee200000 { - compatible = "renesas,r8a779g0-rpc-if", - "renesas,rcar-gen4-rpc-if"; - reg = <0 0xee200000 0 0x200>, - <0 0x08000000 0 0x04000000>, - <0 0xee208000 0 0x100>; - reg-names = "regs", "dirmap", "wbuf"; - interrupts = <GIC_SPI 225 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&cpg CPG_MOD 629>; - power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>; - resets = <&cpg 629>; - #address-cells = <1>; - #size-cells = <0>; - status = "disabled"; - }; - gic: interrupt-controller@f1000000 { compatible = "arm,gic-v3"; #interrupt-cells = <3>;

From: Manu Bretelle chantr4@gmail.com

[ Upstream commit 2ef61296d2844c6a4211e07ab70ef2fb412b2c30 ]

After a recent change in the vmtest runner, this test started failing sporadically.

Investigation showed that this test was subject to race condition which got exacerbated after the vm runner change. The symptoms being that the logic that waited for an ICMPv4 packet is naive and will break if 5 or more non-ICMPv4 packets make it to tap0. When ICMPv6 is enabled, the kernel will generate traffic such as ICMPv6 router solicitation... On a system with good performance, the expected ICMPv4 packet would very likely make it to the network interface promptly, but on a system with poor performance, those "guarantees" do not hold true anymore.

Given that the test is IPv4 only, this change disable IPv6 in the test netns by setting `net.ipv6.conf.all.disable_ipv6` to 1. This essentially leaves "ping" as the sole generator of traffic in the network namespace. If this test was to be made IPv6 compatible, the logic in `wait_for_packet` would need to be modified.

In more details...

At a high level, the test does: - create a new namespace - in `setup_redirect_target` set up lo, tap0, and link_err interfaces as well as add 2 routes that attaches ingress/egress sections of `test_lwt_redirect.bpf.o` to the xmit path. - in `send_and_capture_test_packets` send an ICMP packet and read off the tap interface (using `wait_for_packet`) to check that a ICMP packet with the right size is read.

`wait_for_packet` will try to read `max_retry` (5) times from the tap0 fd looking for an ICMPv4 packet matching some criteria.

The problem is that when we set up the `tap0` interface, because IPv6 is enabled by default, traffic such as Router solicitation is sent through tap0, as in:

# tcpdump -r /tmp/lwt_redirect.pc reading from file /tmp/lwt_redirect.pcap, link-type EN10MB (Ethernet) 04:46:23.578352 IP6 :: > ff02::1:ffc0:4427: ICMP6, neighbor solicitation, who has fe80::fcba:dff:fec0:4427, length 32 04:46:23.659522 IP6 :: > ff02::16: HBH ICMP6, multicast listener report v2, 1 group record(s), length 28 04:46:24.389169 IP 10.0.0.1 > 20.0.0.9: ICMP echo request, id 122, seq 1, length 108 04:46:24.618599 IP6 fe80::fcba:dff:fec0:4427 > ff02::16: HBH ICMP6, multicast listener report v2, 1 group record(s), length 28 04:46:24.619985 IP6 fe80::fcba:dff:fec0:4427 > ff02::2: ICMP6, router solicitation, length 16 04:46:24.767326 IP6 fe80::fcba:dff:fec0:4427 > ff02::16: HBH ICMP6, multicast listener report v2, 1 group record(s), length 28 04:46:28.936402 IP6 fe80::fcba:dff:fec0:4427 > ff02::2: ICMP6, router solicitation, length 16

If `wait_for_packet` sees 5 non-ICMPv4 packets, it will return 0, which is what we see in:

2024-01-31T03:51:25.0336992Z test_lwt_redirect_run:PASS:netns_create 0 nsec 2024-01-31T03:51:25.0341309Z open_netns:PASS:malloc token 0 nsec 2024-01-31T03:51:25.0344844Z open_netns:PASS:open /proc/self/ns/net 0 nsec 2024-01-31T03:51:25.0350071Z open_netns:PASS:open netns fd 0 nsec 2024-01-31T03:51:25.0353516Z open_netns:PASS:setns 0 nsec 2024-01-31T03:51:25.0356560Z test_lwt_redirect_run:PASS:setns 0 nsec 2024-01-31T03:51:25.0360140Z open_tuntap:PASS:open(/dev/net/tun) 0 nsec 2024-01-31T03:51:25.0363822Z open_tuntap:PASS:ioctl(TUNSETIFF) 0 nsec 2024-01-31T03:51:25.0367402Z open_tuntap:PASS:fcntl(O_NONBLOCK) 0 nsec 2024-01-31T03:51:25.0371167Z setup_redirect_target:PASS:open_tuntap 0 nsec 2024-01-31T03:51:25.0375180Z setup_redirect_target:PASS:if_nametoindex 0 nsec 2024-01-31T03:51:25.0379929Z setup_redirect_target:PASS:ip link add link_err type dummy 0 nsec 2024-01-31T03:51:25.0384874Z setup_redirect_target:PASS:ip link set lo up 0 nsec 2024-01-31T03:51:25.0389678Z setup_redirect_target:PASS:ip addr add dev lo 10.0.0.1/32 0 nsec 2024-01-31T03:51:25.0394814Z setup_redirect_target:PASS:ip link set link_err up 0 nsec 2024-01-31T03:51:25.0399874Z setup_redirect_target:PASS:ip link set tap0 up 0 nsec 2024-01-31T03:51:25.0407731Z setup_redirect_target:PASS:ip route add 10.0.0.0/24 dev link_err encap bpf xmit obj test_lwt_redirect.bpf.o sec redir_ingress 0 nsec 2024-01-31T03:51:25.0419105Z setup_redirect_target:PASS:ip route add 20.0.0.0/24 dev link_err encap bpf xmit obj test_lwt_redirect.bpf.o sec redir_egress 0 nsec 2024-01-31T03:51:25.0427209Z test_lwt_redirect_normal:PASS:setup_redirect_target 0 nsec 2024-01-31T03:51:25.0431424Z ping_dev:PASS:if_nametoindex 0 nsec 2024-01-31T03:51:25.0437222Z send_and_capture_test_packets:FAIL:wait_for_epacket unexpected wait_for_epacket: actual 0 != expected 1 2024-01-31T03:51:25.0448298Z (/tmp/work/bpf/bpf/tools/testing/selftests/bpf/prog_tests/lwt_redirect.c:175: errno: Success) test_lwt_redirect_normal egress test fails 2024-01-31T03:51:25.0457124Z close_netns:PASS:setns 0 nsec

When running in a VM which potential resource contrains, the odds that calling `ping` is not scheduled very soon after bringing `tap0` up increases, and with this the chances to get our ICMP packet pushed to position 6+ in the network trace.

To confirm this indeed solves the issue, I ran the test 100 times in a row with:

errors=0 successes=0 for i in `seq 1 100` do ./test_progs -t lwt_redirect/lwt_redirect_normal if [ $? -eq 0 ]; then successes=$((successes+1)) else errors=$((errors+1)) fi done echo "successes: $successes/errors: $errors"

While this test would at least fail a couple of time every 10 runs, here it ran 100 times with no error.

Fixes: 43a7c3ef8a15 ("selftests/bpf: Add lwt_xmit tests for BPF_REDIRECT") Signed-off-by: Manu Bretelle chantr4@gmail.com Signed-off-by: Andrii Nakryiko andrii@kernel.org Link: https://lore.kernel.org/bpf/20240131053212.2247527-1-chantr4@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/bpf/prog_tests/lwt_redirect.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/bpf/prog_tests/lwt_redirect.c b/tools/testing/selftests/bpf/prog_tests/lwt_redirect.c index 59b38569f310b..2bc932a18c17e 100644 --- a/tools/testing/selftests/bpf/prog_tests/lwt_redirect.c +++ b/tools/testing/selftests/bpf/prog_tests/lwt_redirect.c @@ -203,6 +203,7 @@ static int setup_redirect_target(const char *target_dev, bool need_mac) if (!ASSERT_GE(target_index, 0, "if_nametoindex")) goto fail;

+ SYS(fail, "sysctl -w net.ipv6.conf.all.disable_ipv6=1"); SYS(fail, "ip link add link_err type dummy"); SYS(fail, "ip link set lo up"); SYS(fail, "ip addr add dev lo " LOCAL_SRC "/32");

From: Frieder Schrempf frieder.schrempf@kontron.de

[ Upstream commit f19e5bb91d53264d7dac5d845a4825afadf72440 ]

There are external pullup resistors on the board and due to silicon errata ERR050080 let's disable the internal ones to prevent any unwanted behavior in case they wear out.

Fixes: 8668d8b2e67f ("arm64: dts: Add the Kontron i.MX8M Mini SoMs and baseboards") Signed-off-by: Frieder Schrempf frieder.schrempf@kontron.de Signed-off-by: Shawn Guo shawnguo@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts | 4 ++-- arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts b/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts index dcec57c20399e..5fd2e45258b11 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts +++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts @@ -279,8 +279,8 @@ MX8MM_IOMUXC_SAI3_MCLK_GPIO5_IO2 0x19

pinctrl_i2c4: i2c4grp { fsl,pins = < - MX8MM_IOMUXC_I2C4_SCL_I2C4_SCL 0x400001c3 - MX8MM_IOMUXC_I2C4_SDA_I2C4_SDA 0x400001c3 + MX8MM_IOMUXC_I2C4_SCL_I2C4_SCL 0x40000083 + MX8MM_IOMUXC_I2C4_SDA_I2C4_SDA 0x40000083 >; };

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi index 1f8326613ee9e..2076148e08627 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-sl.dtsi @@ -237,8 +237,8 @@ MX8MM_IOMUXC_ECSPI1_SS0_GPIO5_IO9 0x19

pinctrl_i2c1: i2c1grp { fsl,pins = < - MX8MM_IOMUXC_I2C1_SCL_I2C1_SCL 0x400001c3 - MX8MM_IOMUXC_I2C1_SDA_I2C1_SDA 0x400001c3 + MX8MM_IOMUXC_I2C1_SCL_I2C1_SCL 0x40000083 + MX8MM_IOMUXC_I2C1_SDA_I2C1_SDA 0x40000083 >; };

From: Frieder Schrempf frieder.schrempf@kontron.de

[ Upstream commit 162aadaa0df8217b0cc49d919dd00022fef65e78 ]

These signals are actively driven by the SoC or by the onboard transceiver. There's no need to enable the internal pull resistors and due to silicon errata ERR050080 let's disable the internal ones to prevent any unwanted behavior in case they wear out.

Fixes: 8668d8b2e67f ("arm64: dts: Add the Kontron i.MX8M Mini SoMs and baseboards") Signed-off-by: Frieder Schrempf frieder.schrempf@kontron.de Signed-off-by: Shawn Guo shawnguo@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- .../boot/dts/freescale/imx8mm-kontron-bl.dts | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts b/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts index 5fd2e45258b11..ee93db11c0d06 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts +++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts @@ -292,19 +292,19 @@ MX8MM_IOMUXC_SPDIF_RX_PWM2_OUT 0x19

pinctrl_uart1: uart1grp { fsl,pins = < - MX8MM_IOMUXC_SAI2_RXC_UART1_DCE_RX 0x140 - MX8MM_IOMUXC_SAI2_RXFS_UART1_DCE_TX 0x140 - MX8MM_IOMUXC_SAI2_RXD0_UART1_DCE_RTS_B 0x140 - MX8MM_IOMUXC_SAI2_TXFS_UART1_DCE_CTS_B 0x140 + MX8MM_IOMUXC_SAI2_RXC_UART1_DCE_RX 0x0 + MX8MM_IOMUXC_SAI2_RXFS_UART1_DCE_TX 0x0 + MX8MM_IOMUXC_SAI2_RXD0_UART1_DCE_RTS_B 0x0 + MX8MM_IOMUXC_SAI2_TXFS_UART1_DCE_CTS_B 0x0 >; };

pinctrl_uart2: uart2grp { fsl,pins = < - MX8MM_IOMUXC_SAI3_TXFS_UART2_DCE_RX 0x140 - MX8MM_IOMUXC_SAI3_TXC_UART2_DCE_TX 0x140 - MX8MM_IOMUXC_SAI3_RXD_UART2_DCE_RTS_B 0x140 - MX8MM_IOMUXC_SAI3_RXC_UART2_DCE_CTS_B 0x140 + MX8MM_IOMUXC_SAI3_TXFS_UART2_DCE_RX 0x0 + MX8MM_IOMUXC_SAI3_TXC_UART2_DCE_TX 0x0 + MX8MM_IOMUXC_SAI3_RXD_UART2_DCE_RTS_B 0x0 + MX8MM_IOMUXC_SAI3_RXC_UART2_DCE_CTS_B 0x0 >; };

From: Frieder Schrempf frieder.schrempf@kontron.de

[ Upstream commit 008820524844326ffb3123cebceba1960c0ad0dc ]

Some signals have external pullup resistors on the board and don't need the internal ones to be enabled. Due to silicon errata ERR050080 let's disable the internal pull resistors whererever possible and prevent any unwanted behavior in case they wear out.

Fixes: 8668d8b2e67f ("arm64: dts: Add the Kontron i.MX8M Mini SoMs and baseboards") Signed-off-by: Frieder Schrempf frieder.schrempf@kontron.de Signed-off-by: Shawn Guo shawnguo@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- .../boot/dts/freescale/imx8mm-kontron-bl.dts | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts b/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts index ee93db11c0d06..aab8e24216501 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts +++ b/arch/arm64/boot/dts/freescale/imx8mm-kontron-bl.dts @@ -316,40 +316,40 @@ MX8MM_IOMUXC_NAND_CE1_B_GPIO3_IO2 0x19