From: Luiz Augusto von Dentz luiz.von.dentz@intel.com

[ Upstream commit 89a0b8b98f49ae34886e67624208c2898e1e4d7f ]

This fixes the following warning:

net/bluetooth/hci_sync.c:5143:5: warning: no previous prototype for ‘hci_le_ext_create_conn_sync’ [-Wmissing-prototypes]

Signed-off-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com Signed-off-by: Marcel Holtmann marcel@holtmann.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/bluetooth/hci_sync.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c index ab9aa700b6b3..4426cc2aaf4a 100644 --- a/net/bluetooth/hci_sync.c +++ b/net/bluetooth/hci_sync.c @@ -5140,8 +5140,8 @@ static void set_ext_conn_params(struct hci_conn *conn, p->max_ce_len = cpu_to_le16(0x0000); }

-int hci_le_ext_create_conn_sync(struct hci_dev *hdev, struct hci_conn *conn, - u8 own_addr_type) +static int hci_le_ext_create_conn_sync(struct hci_dev *hdev, + struct hci_conn *conn, u8 own_addr_type) { struct hci_cp_le_ext_create_conn *cp; struct hci_cp_le_ext_conn_param *p;

From: Soenke Huster soenke.huster@eknoes.de

[ Upstream commit 3afee2118132e93e5f6fa636dfde86201a860ab3 ]

This event is just specified for SCO and eSCO link types. On the reception of a HCI_Synchronous_Connection_Complete for a BDADDR of an existing LE connection, LE link type and a status that triggers the second case of the packet processing a NULL pointer dereference happens, as conn->link is NULL.

Signed-off-by: Soenke Huster soenke.huster@eknoes.de Signed-off-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- net/bluetooth/hci_event.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index fc30f4c03d29..e47cde778b1c 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -4661,6 +4661,19 @@ static void hci_sync_conn_complete_evt(struct hci_dev *hdev, void *data, struct hci_ev_sync_conn_complete *ev = data; struct hci_conn *conn;

+ switch (ev->link_type) { + case SCO_LINK: + case ESCO_LINK: + break; + default: + /* As per Core 5.3 Vol 4 Part E 7.7.35 (p.2219), Link_Type + * for HCI_Synchronous_Connection_Complete is limited to + * either SCO or eSCO + */ + bt_dev_err(hdev, "Ignoring connect complete event for invalid link type"); + return; + } + bt_dev_dbg(hdev, "status 0x%2.2x", ev->status);

hci_dev_lock(hdev);

From: Eric Huang jinhuieric.huang@amd.com

[ Upstream commit f61c40c0757a79bcf744314df606c2bc8ae6a729 ]

SDMA FW fixes the hang issue for adding heavy-weight TLB flush on Arcturus, so we can enable it.

Signed-off-by: Eric Huang jinhuieric.huang@amd.com Acked-by: Alex Deucher alexander.deucher@amd.com Reviewed-by: Felix Kuehling Felix.Kuehling@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 6 ------ drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 10 ++++++++-- 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c index f9bab963a948..5df387c4d7fb 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c @@ -1813,12 +1813,6 @@ int amdgpu_amdkfd_gpuvm_map_memory_to_gpu( true); ret = unreserve_bo_and_vms(&ctx, false, false);

- /* Only apply no TLB flush on Aldebaran to - * workaround regressions on other Asics. - */ - if (table_freed && (adev->asic_type != CHIP_ALDEBARAN)) - *table_freed = true; - goto out;

out_unreserve: diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c index 4bfc0c8ab764..337953af7c2f 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c @@ -1416,6 +1416,12 @@ static int kfd_ioctl_free_memory_of_gpu(struct file *filep, return ret; }

+static bool kfd_flush_tlb_after_unmap(struct kfd_dev *dev) { + return KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 2) || + (KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 1) && + dev->adev->sdma.instance[0].fw_version >= 18); +} + static int kfd_ioctl_map_memory_to_gpu(struct file *filep, struct kfd_process *p, void *data) { @@ -1503,7 +1509,7 @@ static int kfd_ioctl_map_memory_to_gpu(struct file *filep, }

/* Flush TLBs after waiting for the page table updates to complete */ - if (table_freed) { + if (table_freed || !kfd_flush_tlb_after_unmap(dev)) { for (i = 0; i < args->n_devices; i++) { peer = kfd_device_by_id(devices_arr[i]); if (WARN_ON_ONCE(!peer)) @@ -1603,7 +1609,7 @@ static int kfd_ioctl_unmap_memory_from_gpu(struct file *filep, } mutex_unlock(&p->mutex);

- if (KFD_GC_VERSION(dev) == IP_VERSION(9, 4, 2)) { + if (kfd_flush_tlb_after_unmap(dev)) { err = amdgpu_amdkfd_gpuvm_sync_memory(dev->adev, (struct kgd_mem *) mem, true); if (err) {

From: Jani Nikula jani.nikula@intel.com

[ Upstream commit ce99534e978d4a36787dbe5e5c57749d12e6bf4a ]

Improve non-desktop quirk logging if the EDID indicates non-desktop. If both are set, note about redundant quirk. If there's no quirk but the EDID indicates non-desktop, don't log non-desktop is set to 0.

Cc: Philipp Zabel philipp.zabel@gmail.com Signed-off-by: Jani Nikula jani.nikula@intel.com Reviewed-by: Philipp Zabel philipp.zabel@gmail.com Tested-by: Philipp Zabel philipp.zabel@gmail.com Link: https://patchwork.freedesktop.org/patch/msgid/20211228101051.317989-1-jani.n... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/drm_edid.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index e8adfa90807c..e42a15e3f2ab 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -5331,17 +5331,13 @@ u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edi info->width_mm = edid->width_cm * 10; info->height_mm = edid->height_cm * 10;

- info->non_desktop = !!(quirks & EDID_QUIRK_NON_DESKTOP); - drm_get_monitor_range(connector, edid);

- DRM_DEBUG_KMS("non_desktop set to %d\n", info->non_desktop); - if (edid->revision < 3) - return quirks; + goto out;

if (!(edid->input & DRM_EDID_INPUT_DIGITAL)) - return quirks; + goto out;

info->color_formats |= DRM_COLOR_FORMAT_RGB444; drm_parse_cea_ext(connector, edid); @@ -5362,7 +5358,7 @@ u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edi

/* Only defined for 1.4 with digital displays */ if (edid->revision < 4) - return quirks; + goto out;

switch (edid->input & DRM_EDID_DIGITAL_DEPTH_MASK) { case DRM_EDID_DIGITAL_DEPTH_6: @@ -5399,6 +5395,13 @@ u32 drm_add_display_info(struct drm_connector *connector, const struct edid *edi

drm_update_mso(connector, edid);

+out: + if (quirks & EDID_QUIRK_NON_DESKTOP) { + drm_dbg_kms(connector->dev, "Non-desktop display%s\n", + info->non_desktop ? " (redundant quirk)" : ""); + info->non_desktop = true; + } + return quirks; }

From: Douglas Gilbert dgilbert@interlog.com

[ Upstream commit 2aad3cd8537033cd34f70294a23f54623ffe9c1b ]

When scsi_debug is loaded as a module with many (simulated) hosts, targets, and devices (LUs), modprobe can take a long time to return. Only a small amount of this time is spent in the scsi_debug_init(); the rest is other parts of the kernel reacting to to the appearance of new storage devices. As soon as scsi_debug_init() has completed the user space may call 'rmmod scsi_debug' and this was found to cause race problems as outlined here:

https://bugzilla.kernel.org/show_bug.cgi?id=212337

To reliably generate this race a sysfs parameter called rm_all_hosts was added and the code was strengthened in this area. The main change was to make the count of scsi_debug hosts present an atomic. Then it was found that the handling of the existing add_host parameter needed the same strengthening. Further: 'echo -9999 > /sys/bus/pseudo/drivers/scsi_debug/add_host has the same effect as rm_all_hosts so rm_all_hosts was not needed.

To inhibit a race between two invocations of writes to add_host, a mutex was added. Also address a possible race when rmmod is called but LUs are still being added.

The logic to remove (all) hosts is rather crude: it works backwards down a linked lists of hosts. Any pending requests are terminated with DID_NO_CONNECT as are any new requests. In the case where not all hosts are being removed, the ones that remain may have lost requests as just outlined. The lowest numbered host (id) hosts will remain.

Cc: Bart Van Assche bvanassche@acm.org Link: https://lore.kernel.org/r/20220109012853.301953-2-dgilbert@interlog.com Signed-off-by: Douglas Gilbert dgilbert@interlog.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/scsi_debug.c | 197 ++++++++++++++++++++++++++++---------- 1 file changed, 146 insertions(+), 51 deletions(-)

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 2104973a35cd..24f3905f054f 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -33,6 +33,7 @@ #include <linux/blkdev.h> #include <linux/crc-t10dif.h> #include <linux/spinlock.h> +#include <linux/mutex.h> #include <linux/interrupt.h> #include <linux/atomic.h> #include <linux/hrtimer.h> @@ -730,7 +731,9 @@ static const struct opcode_info_t opcode_info_arr[SDEB_I_LAST_ELEM_P1 + 1] = { {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} }, };

-static int sdebug_num_hosts; +static atomic_t sdebug_num_hosts; +static DEFINE_MUTEX(add_host_mutex); + static int sdebug_add_host = DEF_NUM_HOST; /* in sysfs this is relative */ static int sdebug_ato = DEF_ATO; static int sdebug_cdb_len = DEF_CDB_LEN; @@ -777,6 +780,7 @@ static int sdebug_uuid_ctl = DEF_UUID_CTL; static bool sdebug_random = DEF_RANDOM; static bool sdebug_per_host_store = DEF_PER_HOST_STORE; static bool sdebug_removable = DEF_REMOVABLE; +static bool sdebug_deflect_incoming; static bool sdebug_clustering; static bool sdebug_host_lock = DEF_HOST_LOCK; static bool sdebug_strict = DEF_STRICT; @@ -5026,6 +5030,10 @@ static int scsi_debug_slave_configure(struct scsi_device *sdp) sdp->host->host_no, sdp->channel, sdp->id, sdp->lun); if (sdp->host->max_cmd_len != SDEBUG_MAX_CMD_LEN) sdp->host->max_cmd_len = SDEBUG_MAX_CMD_LEN; + if (smp_load_acquire(&sdebug_deflect_incoming)) { + pr_info("Exit early due to deflect_incoming\n"); + return 1; + } if (devip == NULL) { devip = find_build_dev_info(sdp); if (devip == NULL) @@ -5111,7 +5119,7 @@ static bool stop_queued_cmnd(struct scsi_cmnd *cmnd) }

/* Deletes (stops) timers or work queues of all queued commands */ -static void stop_all_queued(void) +static void stop_all_queued(bool done_with_no_conn) { unsigned long iflags; int j, k; @@ -5120,13 +5128,15 @@ static void stop_all_queued(void) struct sdebug_queued_cmd *sqcp; struct sdebug_dev_info *devip; struct sdebug_defer *sd_dp; + struct scsi_cmnd *scp;

for (j = 0, sqp = sdebug_q_arr; j < submit_queues; ++j, ++sqp) { spin_lock_irqsave(&sqp->qc_lock, iflags); for (k = 0; k < SDEBUG_CANQUEUE; ++k) { if (test_bit(k, sqp->in_use_bm)) { sqcp = &sqp->qc_arr[k]; - if (sqcp->a_cmnd == NULL) + scp = sqcp->a_cmnd; + if (!scp) continue; devip = (struct sdebug_dev_info *) sqcp->a_cmnd->device->hostdata; @@ -5141,6 +5151,10 @@ static void stop_all_queued(void) l_defer_t = SDEB_DEFER_NONE; spin_unlock_irqrestore(&sqp->qc_lock, iflags); stop_qc_helper(sd_dp, l_defer_t); + if (done_with_no_conn && l_defer_t != SDEB_DEFER_NONE) { + scp->result = DID_NO_CONNECT << 16; + scsi_done(scp); + } clear_bit(k, sqp->in_use_bm); spin_lock_irqsave(&sqp->qc_lock, iflags); } @@ -5283,7 +5297,7 @@ static int scsi_debug_host_reset(struct scsi_cmnd *SCpnt) } } spin_unlock(&sdebug_host_list_lock); - stop_all_queued(); + stop_all_queued(false); if (SDEBUG_OPT_RESET_NOISE & sdebug_opts) sdev_printk(KERN_INFO, SCpnt->device, "%s: %d device(s) found\n", __func__, k); @@ -5343,13 +5357,50 @@ static void sdebug_build_parts(unsigned char *ramp, unsigned long store_size) } }

-static void block_unblock_all_queues(bool block) +static void sdeb_block_all_queues(void) +{ + int j; + struct sdebug_queue *sqp; + + for (j = 0, sqp = sdebug_q_arr; j < submit_queues; ++j, ++sqp) + atomic_set(&sqp->blocked, (int)true); +} + +static void sdeb_unblock_all_queues(void) { int j; struct sdebug_queue *sqp;

for (j = 0, sqp = sdebug_q_arr; j < submit_queues; ++j, ++sqp) - atomic_set(&sqp->blocked, (int)block); + atomic_set(&sqp->blocked, (int)false); +} + +static void +sdeb_add_n_hosts(int num_hosts) +{ + if (num_hosts < 1) + return; + do { + bool found; + unsigned long idx; + struct sdeb_store_info *sip; + bool want_phs = (sdebug_fake_rw == 0) && sdebug_per_host_store; + + found = false; + if (want_phs) { + xa_for_each_marked(per_store_ap, idx, sip, SDEB_XA_NOT_IN_USE) { + sdeb_most_recent_idx = (int)idx; + found = true; + break; + } + if (found) /* re-use case */ + sdebug_add_host_helper((int)idx); + else + sdebug_do_add_host(true /* make new store */); + } else { + sdebug_do_add_host(false); + } + } while (--num_hosts); }

/* Adjust (by rounding down) the sdebug_cmnd_count so abs(every_nth)-1 @@ -5362,10 +5413,10 @@ static void tweak_cmnd_count(void) modulo = abs(sdebug_every_nth); if (modulo < 2) return; - block_unblock_all_queues(true); + sdeb_block_all_queues(); count = atomic_read(&sdebug_cmnd_count); atomic_set(&sdebug_cmnd_count, (count / modulo) * modulo); - block_unblock_all_queues(false); + sdeb_unblock_all_queues(); }

static void clear_queue_stats(void) @@ -5383,6 +5434,15 @@ static bool inject_on_this_cmd(void) return (atomic_read(&sdebug_cmnd_count) % abs(sdebug_every_nth)) == 0; }

+static int process_deflect_incoming(struct scsi_cmnd *scp) +{ + u8 opcode = scp->cmnd[0]; + + if (opcode == SYNCHRONIZE_CACHE || opcode == SYNCHRONIZE_CACHE_16) + return 0; + return DID_NO_CONNECT << 16; +} + #define INCLUSIVE_TIMING_MAX_NS 1000000 /* 1 millisecond */

/* Complete the processing of the thread that queued a SCSI command to this @@ -5392,8 +5452,7 @@ static bool inject_on_this_cmd(void) */ static int schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip, int scsi_result, - int (*pfp)(struct scsi_cmnd *, - struct sdebug_dev_info *), + int (*pfp)(struct scsi_cmnd *, struct sdebug_dev_info *), int delta_jiff, int ndelay) { bool new_sd_dp; @@ -5414,13 +5473,27 @@ static int schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip, } sdp = cmnd->device;

- if (delta_jiff == 0) + if (delta_jiff == 0) { + sqp = get_queue(cmnd); + if (atomic_read(&sqp->blocked)) { + if (smp_load_acquire(&sdebug_deflect_incoming)) + return process_deflect_incoming(cmnd); + else + return SCSI_MLQUEUE_HOST_BUSY; + } goto respond_in_thread; + }

sqp = get_queue(cmnd); spin_lock_irqsave(&sqp->qc_lock, iflags); if (unlikely(atomic_read(&sqp->blocked))) { spin_unlock_irqrestore(&sqp->qc_lock, iflags); + if (smp_load_acquire(&sdebug_deflect_incoming)) { + scsi_result = process_deflect_incoming(cmnd); + goto respond_in_thread; + } + if (sdebug_verbose) + pr_info("blocked --> SCSI_MLQUEUE_HOST_BUSY\n"); return SCSI_MLQUEUE_HOST_BUSY; } num_in_q = atomic_read(&devip->num_in_q); @@ -5616,8 +5689,12 @@ static int schedule_resp(struct scsi_cmnd *cmnd, struct sdebug_dev_info *devip, respond_in_thread: /* call back to mid-layer using invocation thread */ cmnd->result = pfp != NULL ? pfp(cmnd, devip) : 0; cmnd->result &= ~SDEG_RES_IMMED_MASK; - if (cmnd->result == 0 && scsi_result != 0) + if (cmnd->result == 0 && scsi_result != 0) { cmnd->result = scsi_result; + if (sdebug_verbose) + pr_info("respond_in_thread: tag=0x%x, scp->result=0x%x\n", + blk_mq_unique_tag(scsi_cmd_to_rq(cmnd)), scsi_result); + } scsi_done(cmnd); return 0; } @@ -5900,7 +5977,7 @@ static ssize_t delay_store(struct device_driver *ddp, const char *buf, int j, k; struct sdebug_queue *sqp;

- block_unblock_all_queues(true); + sdeb_block_all_queues(); for (j = 0, sqp = sdebug_q_arr; j < submit_queues; ++j, ++sqp) { k = find_first_bit(sqp->in_use_bm, @@ -5914,7 +5991,7 @@ static ssize_t delay_store(struct device_driver *ddp, const char *buf, sdebug_jdelay = jdelay; sdebug_ndelay = 0; } - block_unblock_all_queues(false); + sdeb_unblock_all_queues(); } return res; } @@ -5940,7 +6017,7 @@ static ssize_t ndelay_store(struct device_driver *ddp, const char *buf, int j, k; struct sdebug_queue *sqp;

- block_unblock_all_queues(true); + sdeb_block_all_queues(); for (j = 0, sqp = sdebug_q_arr; j < submit_queues; ++j, ++sqp) { k = find_first_bit(sqp->in_use_bm, @@ -5955,7 +6032,7 @@ static ssize_t ndelay_store(struct device_driver *ddp, const char *buf, sdebug_jdelay = ndelay ? JDELAY_OVERRIDDEN : DEF_JDELAY; } - block_unblock_all_queues(false); + sdeb_unblock_all_queues(); } return res; } @@ -6269,7 +6346,7 @@ static ssize_t max_queue_store(struct device_driver *ddp, const char *buf, if ((count > 0) && (1 == sscanf(buf, "%d", &n)) && (n > 0) && (n <= SDEBUG_CANQUEUE) && (sdebug_host_max_queue == 0)) { - block_unblock_all_queues(true); + sdeb_block_all_queues(); k = 0; for (j = 0, sqp = sdebug_q_arr; j < submit_queues; ++j, ++sqp) { @@ -6284,7 +6361,7 @@ static ssize_t max_queue_store(struct device_driver *ddp, const char *buf, atomic_set(&retired_max_queue, k + 1); else atomic_set(&retired_max_queue, 0); - block_unblock_all_queues(false); + sdeb_unblock_all_queues(); return count; } return -EINVAL; @@ -6356,43 +6433,48 @@ static DRIVER_ATTR_RW(virtual_gb); static ssize_t add_host_show(struct device_driver *ddp, char *buf) { /* absolute number of hosts currently active is what is shown */ - return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_num_hosts); + return scnprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&sdebug_num_hosts)); }

+/* + * Accept positive and negative values. Hex values (only positive) may be prefixed by '0x'. + * To remove all hosts use a large negative number (e.g. -9999). The value 0 does nothing. + * Returns -EBUSY if another add_host sysfs invocation is active. + */ static ssize_t add_host_store(struct device_driver *ddp, const char *buf, size_t count) { - bool found; - unsigned long idx; - struct sdeb_store_info *sip; - bool want_phs = (sdebug_fake_rw == 0) && sdebug_per_host_store; int delta_hosts;

- if (sscanf(buf, "%d", &delta_hosts) != 1) + if (count == 0 || kstrtoint(buf, 0, &delta_hosts)) return -EINVAL; + if (sdebug_verbose) + pr_info("prior num_hosts=%d, num_to_add=%d\n", + atomic_read(&sdebug_num_hosts), delta_hosts); + if (delta_hosts == 0) + return count; + if (mutex_trylock(&add_host_mutex) == 0) + return -EBUSY; if (delta_hosts > 0) { - do { - found = false; - if (want_phs) { - xa_for_each_marked(per_store_ap, idx, sip, - SDEB_XA_NOT_IN_USE) { - sdeb_most_recent_idx = (int)idx; - found = true; - break; - } - if (found) /* re-use case */ - sdebug_add_host_helper((int)idx); - else - sdebug_do_add_host(true); - } else { - sdebug_do_add_host(false); - } - } while (--delta_hosts); + sdeb_add_n_hosts(delta_hosts); } else if (delta_hosts < 0) { + smp_store_release(&sdebug_deflect_incoming, true); + sdeb_block_all_queues(); + if (delta_hosts >= atomic_read(&sdebug_num_hosts)) + stop_all_queued(true); do { + if (atomic_read(&sdebug_num_hosts) < 1) { + free_all_queued(); + break; + } sdebug_do_remove_host(false); } while (++delta_hosts); + sdeb_unblock_all_queues(); + smp_store_release(&sdebug_deflect_incoming, false); } + mutex_unlock(&add_host_mutex); + if (sdebug_verbose) + pr_info("post num_hosts=%d\n", atomic_read(&sdebug_num_hosts)); return count; } static DRIVER_ATTR_RW(add_host); @@ -6902,6 +6984,10 @@ static int __init scsi_debug_init(void) sdebug_add_host = 0;

for (k = 0; k < hosts_to_add; k++) { + if (smp_load_acquire(&sdebug_deflect_incoming)) { + pr_info("exit early as sdebug_deflect_incoming is set\n"); + return 0; + } if (want_store && k == 0) { ret = sdebug_add_host_helper(idx); if (ret < 0) { @@ -6919,8 +7005,12 @@ static int __init scsi_debug_init(void) } } if (sdebug_verbose) - pr_info("built %d host(s)\n", sdebug_num_hosts); + pr_info("built %d host(s)\n", atomic_read(&sdebug_num_hosts));

+ /* + * Even though all the hosts have been established, due to async device (LU) scanning + * by the scsi mid-level, there may still be devices (LUs) being set up. + */ return 0;

bus_unreg: @@ -6936,12 +7026,17 @@ static int __init scsi_debug_init(void)

static void __exit scsi_debug_exit(void) { - int k = sdebug_num_hosts; + int k;

- stop_all_queued(); - for (; k; k--) + /* Possible race with LUs still being set up; stop them asap */ + sdeb_block_all_queues(); + smp_store_release(&sdebug_deflect_incoming, true); + stop_all_queued(false); + for (k = 0; atomic_read(&sdebug_num_hosts) > 0; k++) sdebug_do_remove_host(true); free_all_queued(); + if (sdebug_verbose) + pr_info("removed %d hosts\n", k); driver_unregister(&sdebug_driverfs_driver); bus_unregister(&pseudo_lld_bus); root_device_unregister(pseudo_primary); @@ -7111,13 +7206,13 @@ static int sdebug_add_host_helper(int per_host_idx) sdbg_host->dev.bus = &pseudo_lld_bus; sdbg_host->dev.parent = pseudo_primary; sdbg_host->dev.release = &sdebug_release_adapter; - dev_set_name(&sdbg_host->dev, "adapter%d", sdebug_num_hosts); + dev_set_name(&sdbg_host->dev, "adapter%d", atomic_read(&sdebug_num_hosts));

error = device_register(&sdbg_host->dev); if (error) goto clean;

- ++sdebug_num_hosts; + atomic_inc(&sdebug_num_hosts); return 0;

clean: @@ -7181,7 +7276,7 @@ static void sdebug_do_remove_host(bool the_end) return;

device_unregister(&sdbg_host->dev); - --sdebug_num_hosts; + atomic_dec(&sdebug_num_hosts); }

static int sdebug_change_qdepth(struct scsi_device *sdev, int qdepth) @@ -7189,10 +7284,10 @@ static int sdebug_change_qdepth(struct scsi_device *sdev, int qdepth) int num_in_q = 0; struct sdebug_dev_info *devip;

- block_unblock_all_queues(true); + sdeb_block_all_queues(); devip = (struct sdebug_dev_info *)sdev->hostdata; if (NULL == devip) { - block_unblock_all_queues(false); + sdeb_unblock_all_queues(); return -ENODEV; } num_in_q = atomic_read(&devip->num_in_q); @@ -7211,7 +7306,7 @@ static int sdebug_change_qdepth(struct scsi_device *sdev, int qdepth) sdev_printk(KERN_INFO, sdev, "%s: qdepth=%d, num_in_q=%d\n", __func__, qdepth, num_in_q); } - block_unblock_all_queues(false); + sdeb_unblock_all_queues(); return sdev->queue_depth; }

From: Yongzhi Liu lyz_cs@pku.edu.cn

[ Upstream commit 5d5c6dba2b43e28845d7d7ed32a36802329a5f52 ]

[why] Resource release is needed on the error handling path to prevent memory leak.

[how] Fix this by adding kfree on the error handling path.

Reviewed-by: Harry Wentland harry.wentland@amd.com Signed-off-by: Yongzhi Liu lyz_cs@pku.edu.cn Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- .../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 80 ++++++++++++++----- 1 file changed, 60 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c index 26719efa5396..12d437d9a0e4 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c @@ -227,8 +227,10 @@ static ssize_t dp_link_settings_read(struct file *f, char __user *buf, break;

r = put_user(*(rd_buf + result), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + }

buf += 1; size -= 1; @@ -389,8 +391,10 @@ static ssize_t dp_phy_settings_read(struct file *f, char __user *buf, break;

r = put_user((*(rd_buf + result)), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + }

buf += 1; size -= 1; @@ -1359,8 +1363,10 @@ static ssize_t dp_dsc_clock_en_read(struct file *f, char __user *buf, break; }

- if (!pipe_ctx) + if (!pipe_ctx) { + kfree(rd_buf); return -ENXIO; + }

dsc = pipe_ctx->stream_res.dsc; if (dsc) @@ -1376,8 +1382,10 @@ static ssize_t dp_dsc_clock_en_read(struct file *f, char __user *buf, break;

r = put_user(*(rd_buf + result), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + }

buf += 1; size -= 1; @@ -1546,8 +1554,10 @@ static ssize_t dp_dsc_slice_width_read(struct file *f, char __user *buf, break; }

- if (!pipe_ctx) + if (!pipe_ctx) { + kfree(rd_buf); return -ENXIO; + }

dsc = pipe_ctx->stream_res.dsc; if (dsc) @@ -1563,8 +1573,10 @@ static ssize_t dp_dsc_slice_width_read(struct file *f, char __user *buf, break;

r = put_user(*(rd_buf + result), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + }

buf += 1; size -= 1; @@ -1731,8 +1743,10 @@ static ssize_t dp_dsc_slice_height_read(struct file *f, char __user *buf, break; }

- if (!pipe_ctx) + if (!pipe_ctx) { + kfree(rd_buf); return -ENXIO; + }

dsc = pipe_ctx->stream_res.dsc; if (dsc) @@ -1748,8 +1762,10 @@ static ssize_t dp_dsc_slice_height_read(struct file *f, char __user *buf, break;

r = put_user(*(rd_buf + result), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + }

buf += 1; size -= 1; @@ -1912,8 +1928,10 @@ static ssize_t dp_dsc_bits_per_pixel_read(struct file *f, char __user *buf, break; }

- if (!pipe_ctx) + if (!pipe_ctx) { + kfree(rd_buf); return -ENXIO; + }

dsc = pipe_ctx->stream_res.dsc; if (dsc) @@ -1929,8 +1947,10 @@ static ssize_t dp_dsc_bits_per_pixel_read(struct file *f, char __user *buf, break;

r = put_user(*(rd_buf + result), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + }

buf += 1; size -= 1; @@ -2088,8 +2108,10 @@ static ssize_t dp_dsc_pic_width_read(struct file *f, char __user *buf, break; }

- if (!pipe_ctx) + if (!pipe_ctx) { + kfree(rd_buf); return -ENXIO; + }

dsc = pipe_ctx->stream_res.dsc; if (dsc) @@ -2105,8 +2127,10 @@ static ssize_t dp_dsc_pic_width_read(struct file *f, char __user *buf, break;

r = put_user(*(rd_buf + result), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + }

buf += 1; size -= 1; @@ -2145,8 +2169,10 @@ static ssize_t dp_dsc_pic_height_read(struct file *f, char __user *buf, break; }

- if (!pipe_ctx) + if (!pipe_ctx) { + kfree(rd_buf); return -ENXIO; + }

dsc = pipe_ctx->stream_res.dsc; if (dsc) @@ -2162,8 +2188,10 @@ static ssize_t dp_dsc_pic_height_read(struct file *f, char __user *buf, break;

r = put_user(*(rd_buf + result), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + }

buf += 1; size -= 1; @@ -2217,8 +2245,10 @@ static ssize_t dp_dsc_chunk_size_read(struct file *f, char __user *buf, break; }

- if (!pipe_ctx) + if (!pipe_ctx) { + kfree(rd_buf); return -ENXIO; + }

dsc = pipe_ctx->stream_res.dsc; if (dsc) @@ -2234,8 +2264,10 @@ static ssize_t dp_dsc_chunk_size_read(struct file *f, char __user *buf, break;

r = put_user(*(rd_buf + result), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + }

buf += 1; size -= 1; @@ -2289,8 +2321,10 @@ static ssize_t dp_dsc_slice_bpg_offset_read(struct file *f, char __user *buf, break; }

- if (!pipe_ctx) + if (!pipe_ctx) { + kfree(rd_buf); return -ENXIO; + }

dsc = pipe_ctx->stream_res.dsc; if (dsc) @@ -2306,8 +2340,10 @@ static ssize_t dp_dsc_slice_bpg_offset_read(struct file *f, char __user *buf, break;

r = put_user(*(rd_buf + result), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + }

buf += 1; size -= 1; @@ -3459,8 +3495,10 @@ static ssize_t dcc_en_bits_read( dc->hwss.get_dcc_en_bits(dc, dcc_en_bits);

rd_buf = kcalloc(rd_buf_size, sizeof(char), GFP_KERNEL); - if (!rd_buf) + if (!rd_buf) { + kfree(dcc_en_bits); return -ENOMEM; + }

for (i = 0; i < num_pipes; i++) offset += snprintf(rd_buf + offset, rd_buf_size - offset, @@ -3473,8 +3511,10 @@ static ssize_t dcc_en_bits_read( if (*pos >= rd_buf_size) break; r = put_user(*(rd_buf + result), buf); - if (r) + if (r) { + kfree(rd_buf); return r; /* r = -EFAULT */ + } buf += 1; size -= 1; *pos += 1;

From: Wayne Chang waynec@nvidia.com

[ Upstream commit 62fb61580eb48fc890b7bc9fb5fd263367baeca8 ]

According to the Tegra Technical Reference Manual, SPARAM is a read-only register and should not be programmed in the driver.

The change removes the wrong SPARAM usage.

Signed-off-by: Wayne Chang waynec@nvidia.com Link: https://lore.kernel.org/r/20220107090443.149021-1-waynec@nvidia.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/gadget/udc/tegra-xudc.c | 8 -------- 1 file changed, 8 deletions(-)

diff --git a/drivers/usb/gadget/udc/tegra-xudc.c b/drivers/usb/gadget/udc/tegra-xudc.c index 43f1b0d461c1..716d9ab2d2ff 100644 --- a/drivers/usb/gadget/udc/tegra-xudc.c +++ b/drivers/usb/gadget/udc/tegra-xudc.c @@ -32,9 +32,6 @@ #include <linux/workqueue.h>

/* XUSB_DEV registers */ -#define SPARAM 0x000 -#define SPARAM_ERSTMAX_MASK GENMASK(20, 16) -#define SPARAM_ERSTMAX(x) (((x) << 16) & SPARAM_ERSTMAX_MASK) #define DB 0x004 #define DB_TARGET_MASK GENMASK(15, 8) #define DB_TARGET(x) (((x) << 8) & DB_TARGET_MASK) @@ -3295,11 +3292,6 @@ static void tegra_xudc_init_event_ring(struct tegra_xudc *xudc) unsigned int i; u32 val;

- val = xudc_readl(xudc, SPARAM); - val &= ~(SPARAM_ERSTMAX_MASK); - val |= SPARAM_ERSTMAX(XUDC_NR_EVENT_RINGS); - xudc_writel(xudc, val, SPARAM); - for (i = 0; i < ARRAY_SIZE(xudc->event_ring); i++) { memset(xudc->event_ring[i], 0, XUDC_EVENT_RING_SIZE * sizeof(*xudc->event_ring[i]));

From: Pawel Laszczak pawell@cadence.com

[ Upstream commit 03db9289b5ab59437e42a111a34545a7cedb5190 ]

Variable ret in function cdnsp_decode_trb is initialized but not used. To fix this compiler warning patch adds checking whether the data buffer has not been overflowed.

Reported-by: kernel test robot lkp@intel.com Signed-off-by: Pawel Laszczak pawell@cadence.com Link: https://lore.kernel.org/r/20220112053237.14309-1-pawell@gli-login.cadence.co... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/cdns3/cdnsp-debug.h | 305 ++++++++++++++++---------------- 1 file changed, 154 insertions(+), 151 deletions(-)

diff --git a/drivers/usb/cdns3/cdnsp-debug.h b/drivers/usb/cdns3/cdnsp-debug.h index a8776df2d4e0..f0ca865cce2a 100644 --- a/drivers/usb/cdns3/cdnsp-debug.h +++ b/drivers/usb/cdns3/cdnsp-debug.h @@ -182,208 +182,211 @@ static inline const char *cdnsp_decode_trb(char *str, size_t size, u32 field0, int ep_id = TRB_TO_EP_INDEX(field3) - 1; int type = TRB_FIELD_TO_TYPE(field3); unsigned int ep_num; - int ret = 0; + int ret; u32 temp;

ep_num = DIV_ROUND_UP(ep_id, 2);

switch (type) { case TRB_LINK: - ret += snprintf(str, size, - "LINK %08x%08x intr %ld type '%s' flags %c:%c:%c:%c", - field1, field0, GET_INTR_TARGET(field2), - cdnsp_trb_type_string(type), - field3 & TRB_IOC ? 'I' : 'i', - field3 & TRB_CHAIN ? 'C' : 'c', - field3 & TRB_TC ? 'T' : 't', - field3 & TRB_CYCLE ? 'C' : 'c'); + ret = snprintf(str, size, + "LINK %08x%08x intr %ld type '%s' flags %c:%c:%c:%c", + field1, field0, GET_INTR_TARGET(field2), + cdnsp_trb_type_string(type), + field3 & TRB_IOC ? 'I' : 'i', + field3 & TRB_CHAIN ? 'C' : 'c', + field3 & TRB_TC ? 'T' : 't', + field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_TRANSFER: case TRB_COMPLETION: case TRB_PORT_STATUS: case TRB_HC_EVENT: - ret += snprintf(str, size, - "ep%d%s(%d) type '%s' TRB %08x%08x status '%s'" - " len %ld slot %ld flags %c:%c", - ep_num, ep_id % 2 ? "out" : "in", - TRB_TO_EP_INDEX(field3), - cdnsp_trb_type_string(type), field1, field0, - cdnsp_trb_comp_code_string(GET_COMP_CODE(field2)), - EVENT_TRB_LEN(field2), TRB_TO_SLOT_ID(field3), - field3 & EVENT_DATA ? 'E' : 'e', - field3 & TRB_CYCLE ? 'C' : 'c'); + ret = snprintf(str, size, + "ep%d%s(%d) type '%s' TRB %08x%08x status '%s'" + " len %ld slot %ld flags %c:%c", + ep_num, ep_id % 2 ? "out" : "in", + TRB_TO_EP_INDEX(field3), + cdnsp_trb_type_string(type), field1, field0, + cdnsp_trb_comp_code_string(GET_COMP_CODE(field2)), + EVENT_TRB_LEN(field2), TRB_TO_SLOT_ID(field3), + field3 & EVENT_DATA ? 'E' : 'e', + field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_MFINDEX_WRAP: - ret += snprintf(str, size, "%s: flags %c", - cdnsp_trb_type_string(type), - field3 & TRB_CYCLE ? 'C' : 'c'); + ret = snprintf(str, size, "%s: flags %c", + cdnsp_trb_type_string(type), + field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_SETUP: - ret += snprintf(str, size, - "type '%s' bRequestType %02x bRequest %02x " - "wValue %02x%02x wIndex %02x%02x wLength %d " - "length %ld TD size %ld intr %ld Setup ID %ld " - "flags %c:%c:%c", - cdnsp_trb_type_string(type), - field0 & 0xff, - (field0 & 0xff00) >> 8, - (field0 & 0xff000000) >> 24, - (field0 & 0xff0000) >> 16, - (field1 & 0xff00) >> 8, - field1 & 0xff, - (field1 & 0xff000000) >> 16 | - (field1 & 0xff0000) >> 16, - TRB_LEN(field2), GET_TD_SIZE(field2), - GET_INTR_TARGET(field2), - TRB_SETUPID_TO_TYPE(field3), - field3 & TRB_IDT ? 'D' : 'd', - field3 & TRB_IOC ? 'I' : 'i', - field3 & TRB_CYCLE ? 'C' : 'c'); + ret = snprintf(str, size, + "type '%s' bRequestType %02x bRequest %02x " + "wValue %02x%02x wIndex %02x%02x wLength %d " + "length %ld TD size %ld intr %ld Setup ID %ld " + "flags %c:%c:%c", + cdnsp_trb_type_string(type), + field0 & 0xff, + (field0 & 0xff00) >> 8, + (field0 & 0xff000000) >> 24, + (field0 & 0xff0000) >> 16, + (field1 & 0xff00) >> 8, + field1 & 0xff, + (field1 & 0xff000000) >> 16 | + (field1 & 0xff0000) >> 16, + TRB_LEN(field2), GET_TD_SIZE(field2), + GET_INTR_TARGET(field2), + TRB_SETUPID_TO_TYPE(field3), + field3 & TRB_IDT ? 'D' : 'd', + field3 & TRB_IOC ? 'I' : 'i', + field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_DATA: - ret += snprintf(str, size, - "type '%s' Buffer %08x%08x length %ld TD size %ld " - "intr %ld flags %c:%c:%c:%c:%c:%c:%c", - cdnsp_trb_type_string(type), - field1, field0, TRB_LEN(field2), - GET_TD_SIZE(field2), - GET_INTR_TARGET(field2), - field3 & TRB_IDT ? 'D' : 'i', - field3 & TRB_IOC ? 'I' : 'i', - field3 & TRB_CHAIN ? 'C' : 'c', - field3 & TRB_NO_SNOOP ? 'S' : 's', - field3 & TRB_ISP ? 'I' : 'i', - field3 & TRB_ENT ? 'E' : 'e', - field3 & TRB_CYCLE ? 'C' : 'c'); + ret = snprintf(str, size, + "type '%s' Buffer %08x%08x length %ld TD size %ld " + "intr %ld flags %c:%c:%c:%c:%c:%c:%c", + cdnsp_trb_type_string(type), + field1, field0, TRB_LEN(field2), + GET_TD_SIZE(field2), + GET_INTR_TARGET(field2), + field3 & TRB_IDT ? 'D' : 'i', + field3 & TRB_IOC ? 'I' : 'i', + field3 & TRB_CHAIN ? 'C' : 'c', + field3 & TRB_NO_SNOOP ? 'S' : 's', + field3 & TRB_ISP ? 'I' : 'i', + field3 & TRB_ENT ? 'E' : 'e', + field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_STATUS: - ret += snprintf(str, size, - "Buffer %08x%08x length %ld TD size %ld intr" - "%ld type '%s' flags %c:%c:%c:%c", - field1, field0, TRB_LEN(field2), - GET_TD_SIZE(field2), - GET_INTR_TARGET(field2), - cdnsp_trb_type_string(type), - field3 & TRB_IOC ? 'I' : 'i', - field3 & TRB_CHAIN ? 'C' : 'c', - field3 & TRB_ENT ? 'E' : 'e', - field3 & TRB_CYCLE ? 'C' : 'c'); + ret = snprintf(str, size, + "Buffer %08x%08x length %ld TD size %ld intr" + "%ld type '%s' flags %c:%c:%c:%c", + field1, field0, TRB_LEN(field2), + GET_TD_SIZE(field2), + GET_INTR_TARGET(field2), + cdnsp_trb_type_string(type), + field3 & TRB_IOC ? 'I' : 'i', + field3 & TRB_CHAIN ? 'C' : 'c', + field3 & TRB_ENT ? 'E' : 'e', + field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_NORMAL: case TRB_ISOC: case TRB_EVENT_DATA: case TRB_TR_NOOP: - ret += snprintf(str, size, - "type '%s' Buffer %08x%08x length %ld " - "TD size %ld intr %ld " - "flags %c:%c:%c:%c:%c:%c:%c:%c:%c", - cdnsp_trb_type_string(type), - field1, field0, TRB_LEN(field2), - GET_TD_SIZE(field2), - GET_INTR_TARGET(field2), - field3 & TRB_BEI ? 'B' : 'b', - field3 & TRB_IDT ? 'T' : 't', - field3 & TRB_IOC ? 'I' : 'i', - field3 & TRB_CHAIN ? 'C' : 'c', - field3 & TRB_NO_SNOOP ? 'S' : 's', - field3 & TRB_ISP ? 'I' : 'i', - field3 & TRB_ENT ? 'E' : 'e', - field3 & TRB_CYCLE ? 'C' : 'c', - !(field3 & TRB_EVENT_INVALIDATE) ? 'V' : 'v'); + ret = snprintf(str, size, + "type '%s' Buffer %08x%08x length %ld " + "TD size %ld intr %ld " + "flags %c:%c:%c:%c:%c:%c:%c:%c:%c", + cdnsp_trb_type_string(type), + field1, field0, TRB_LEN(field2), + GET_TD_SIZE(field2), + GET_INTR_TARGET(field2), + field3 & TRB_BEI ? 'B' : 'b', + field3 & TRB_IDT ? 'T' : 't', + field3 & TRB_IOC ? 'I' : 'i', + field3 & TRB_CHAIN ? 'C' : 'c', + field3 & TRB_NO_SNOOP ? 'S' : 's', + field3 & TRB_ISP ? 'I' : 'i', + field3 & TRB_ENT ? 'E' : 'e', + field3 & TRB_CYCLE ? 'C' : 'c', + !(field3 & TRB_EVENT_INVALIDATE) ? 'V' : 'v'); break; case TRB_CMD_NOOP: case TRB_ENABLE_SLOT: - ret += snprintf(str, size, "%s: flags %c", - cdnsp_trb_type_string(type), - field3 & TRB_CYCLE ? 'C' : 'c'); + ret = snprintf(str, size, "%s: flags %c", + cdnsp_trb_type_string(type), + field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_DISABLE_SLOT: - ret += snprintf(str, size, "%s: slot %ld flags %c", - cdnsp_trb_type_string(type), - TRB_TO_SLOT_ID(field3), - field3 & TRB_CYCLE ? 'C' : 'c'); + ret = snprintf(str, size, "%s: slot %ld flags %c", + cdnsp_trb_type_string(type), + TRB_TO_SLOT_ID(field3), + field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_ADDR_DEV: - ret += snprintf(str, size, - "%s: ctx %08x%08x slot %ld flags %c:%c", - cdnsp_trb_type_string(type), field1, field0, - TRB_TO_SLOT_ID(field3), - field3 & TRB_BSR ? 'B' : 'b', - field3 & TRB_CYCLE ? 'C' : 'c'); + ret = snprintf(str, size, + "%s: ctx %08x%08x slot %ld flags %c:%c", + cdnsp_trb_type_string(type), field1, field0, + TRB_TO_SLOT_ID(field3), + field3 & TRB_BSR ? 'B' : 'b', + field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_CONFIG_EP: - ret += snprintf(str, size, - "%s: ctx %08x%08x slot %ld flags %c:%c", - cdnsp_trb_type_string(type), field1, field0, - TRB_TO_SLOT_ID(field3), - field3 & TRB_DC ? 'D' : 'd', - field3 & TRB_CYCLE ? 'C' : 'c'); + ret = snprintf(str, size, + "%s: ctx %08x%08x slot %ld flags %c:%c", + cdnsp_trb_type_string(type), field1, field0, + TRB_TO_SLOT_ID(field3), + field3 & TRB_DC ? 'D' : 'd', + field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_EVAL_CONTEXT: - ret += snprintf(str, size, - "%s: ctx %08x%08x slot %ld flags %c", - cdnsp_trb_type_string(type), field1, field0, - TRB_TO_SLOT_ID(field3), - field3 & TRB_CYCLE ? 'C' : 'c'); + ret = snprintf(str, size, + "%s: ctx %08x%08x slot %ld flags %c", + cdnsp_trb_type_string(type), field1, field0, + TRB_TO_SLOT_ID(field3), + field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_RESET_EP: case TRB_HALT_ENDPOINT: case TRB_FLUSH_ENDPOINT: - ret += snprintf(str, size, - "%s: ep%d%s(%d) ctx %08x%08x slot %ld flags %c", - cdnsp_trb_type_string(type), - ep_num, ep_id % 2 ? "out" : "in", - TRB_TO_EP_INDEX(field3), field1, field0, - TRB_TO_SLOT_ID(field3), - field3 & TRB_CYCLE ? 'C' : 'c'); + ret = snprintf(str, size, + "%s: ep%d%s(%d) ctx %08x%08x slot %ld flags %c", + cdnsp_trb_type_string(type), + ep_num, ep_id % 2 ? "out" : "in", + TRB_TO_EP_INDEX(field3), field1, field0, + TRB_TO_SLOT_ID(field3), + field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_STOP_RING: - ret += snprintf(str, size, - "%s: ep%d%s(%d) slot %ld sp %d flags %c", - cdnsp_trb_type_string(type), - ep_num, ep_id % 2 ? "out" : "in", - TRB_TO_EP_INDEX(field3), - TRB_TO_SLOT_ID(field3), - TRB_TO_SUSPEND_PORT(field3), - field3 & TRB_CYCLE ? 'C' : 'c'); + ret = snprintf(str, size, + "%s: ep%d%s(%d) slot %ld sp %d flags %c", + cdnsp_trb_type_string(type), + ep_num, ep_id % 2 ? "out" : "in", + TRB_TO_EP_INDEX(field3), + TRB_TO_SLOT_ID(field3), + TRB_TO_SUSPEND_PORT(field3), + field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_SET_DEQ: - ret += snprintf(str, size, - "%s: ep%d%s(%d) deq %08x%08x stream %ld slot %ld flags %c", - cdnsp_trb_type_string(type), - ep_num, ep_id % 2 ? "out" : "in", - TRB_TO_EP_INDEX(field3), field1, field0, - TRB_TO_STREAM_ID(field2), - TRB_TO_SLOT_ID(field3), - field3 & TRB_CYCLE ? 'C' : 'c'); + ret = snprintf(str, size, + "%s: ep%d%s(%d) deq %08x%08x stream %ld slot %ld flags %c", + cdnsp_trb_type_string(type), + ep_num, ep_id % 2 ? "out" : "in", + TRB_TO_EP_INDEX(field3), field1, field0, + TRB_TO_STREAM_ID(field2), + TRB_TO_SLOT_ID(field3), + field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_RESET_DEV: - ret += snprintf(str, size, "%s: slot %ld flags %c", - cdnsp_trb_type_string(type), - TRB_TO_SLOT_ID(field3), - field3 & TRB_CYCLE ? 'C' : 'c'); + ret = snprintf(str, size, "%s: slot %ld flags %c", + cdnsp_trb_type_string(type), + TRB_TO_SLOT_ID(field3), + field3 & TRB_CYCLE ? 'C' : 'c'); break; case TRB_ENDPOINT_NRDY: - temp = TRB_TO_HOST_STREAM(field2); - - ret += snprintf(str, size, - "%s: ep%d%s(%d) H_SID %x%s%s D_SID %lx flags %c:%c", - cdnsp_trb_type_string(type), - ep_num, ep_id % 2 ? "out" : "in", - TRB_TO_EP_INDEX(field3), temp, - temp == STREAM_PRIME_ACK ? "(PRIME)" : "", - temp == STREAM_REJECTED ? "(REJECTED)" : "", - TRB_TO_DEV_STREAM(field0), - field3 & TRB_STAT ? 'S' : 's', - field3 & TRB_CYCLE ? 'C' : 'c'); + temp = TRB_TO_HOST_STREAM(field2); + + ret = snprintf(str, size, + "%s: ep%d%s(%d) H_SID %x%s%s D_SID %lx flags %c:%c", + cdnsp_trb_type_string(type), + ep_num, ep_id % 2 ? "out" : "in", + TRB_TO_EP_INDEX(field3), temp, + temp == STREAM_PRIME_ACK ? "(PRIME)" : "", + temp == STREAM_REJECTED ? "(REJECTED)" : "", + TRB_TO_DEV_STREAM(field0), + field3 & TRB_STAT ? 'S' : 's', + field3 & TRB_CYCLE ? 'C' : 'c'); break; default: - ret += snprintf(str, size, - "type '%s' -> raw %08x %08x %08x %08x", - cdnsp_trb_type_string(type), - field0, field1, field2, field3); + ret = snprintf(str, size, + "type '%s' -> raw %08x %08x %08x %08x", + cdnsp_trb_type_string(type), + field0, field1, field2, field3); }

+ if (ret >= size) + pr_info("CDNSP: buffer overflowed.\n"); + return str; }

From: Luiz Augusto von Dentz luiz.von.dentz@intel.com

[ Upstream commit 0b94f2651f56b9e4aa5f012b0d7eb57308c773cf ]

hci_cmd_sync_queue shall return an error if HCI_UNREGISTER flag has been set as that means hci_unregister_dev has been called so it will likely cause a uaf after the timeout as the hdev will be freed.

Signed-off-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com Signed-off-by: Marcel Holtmann marcel@holtmann.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/bluetooth/hci_sync.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c index 4426cc2aaf4a..21350dc88868 100644 --- a/net/bluetooth/hci_sync.c +++ b/net/bluetooth/hci_sync.c @@ -379,6 +379,9 @@ int hci_cmd_sync_queue(struct hci_dev *hdev, hci_cmd_sync_work_func_t func, { struct hci_cmd_sync_work_entry *entry;

+ if (hci_dev_test_flag(hdev, HCI_UNREGISTER)) + return -ENODEV; + entry = kmalloc(sizeof(*entry), GFP_KERNEL); if (!entry) return -ENOMEM;

From: Roi Dayan roid@nvidia.com

[ Upstream commit eeed226ed110ed40598e60e29b66643012277be7 ]

In later commit we are going to instantiate multiple attr instances for flow instead of single attr. Parsing TC sample allocates a new memory but there is no symmetric cleanup in the infrastructure. To avoid asymmetric alloc/free use sample_attr as part of the flow attr and not allocated and held as a pointer. This will avoid a cleanup leak when sample action is not on the first attr.

Signed-off-by: Roi Dayan roid@nvidia.com Reviewed-by: Oz Shlomo ozsh@nvidia.com Signed-off-by: Saeed Mahameed saeedm@nvidia.com Signed-off-by: Sasha Levin sashal@kernel.org --- .../net/ethernet/mellanox/mlx5/core/en/tc/act/sample.c | 7 +------ drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.c | 10 +++++----- drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 1 - drivers/net/ethernet/mellanox/mlx5/core/en_tc.h | 2 +- .../net/ethernet/mellanox/mlx5/core/eswitch_offloads.c | 6 +++--- 5 files changed, 10 insertions(+), 16 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/sample.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/sample.c index 6699bdf5cf01..b895c378cfaf 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/sample.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/sample.c @@ -27,11 +27,7 @@ tc_act_parse_sample(struct mlx5e_tc_act_parse_state *parse_state, struct mlx5e_priv *priv, struct mlx5_flow_attr *attr) { - struct mlx5e_sample_attr *sample_attr; - - sample_attr = kzalloc(sizeof(*attr->sample_attr), GFP_KERNEL); - if (!sample_attr) - return -ENOMEM; + struct mlx5e_sample_attr *sample_attr = &attr->sample_attr;

sample_attr->rate = act->sample.rate; sample_attr->group_num = act->sample.psample_group->group_num; @@ -39,7 +35,6 @@ tc_act_parse_sample(struct mlx5e_tc_act_parse_state *parse_state, if (act->sample.truncate) sample_attr->trunc_size = act->sample.trunc_size;

- attr->sample_attr = sample_attr; flow_flag_set(parse_state->flow, SAMPLE);

return 0; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.c index ff4b4f8a5a9d..0faaf9a4b531 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/sample.c @@ -513,7 +513,7 @@ mlx5e_tc_sample_offload(struct mlx5e_tc_psample *tc_psample, sample_flow = kzalloc(sizeof(*sample_flow), GFP_KERNEL); if (!sample_flow) return ERR_PTR(-ENOMEM); - sample_attr = attr->sample_attr; + sample_attr = &attr->sample_attr; sample_attr->sample_flow = sample_flow;

/* For NICs with reg_c_preserve support or decap action, use @@ -546,6 +546,7 @@ mlx5e_tc_sample_offload(struct mlx5e_tc_psample *tc_psample, err = PTR_ERR(sample_flow->sampler); goto err_sampler; } + sample_attr->sampler_id = sample_flow->sampler->sampler_id;

/* Create an id mapping reg_c0 value to sample object. */ restore_obj.type = MLX5_MAPPED_OBJ_SAMPLE; @@ -585,8 +586,7 @@ mlx5e_tc_sample_offload(struct mlx5e_tc_psample *tc_psample, pre_attr->outer_match_level = attr->outer_match_level; pre_attr->chain = attr->chain; pre_attr->prio = attr->prio; - pre_attr->sample_attr = attr->sample_attr; - sample_attr->sampler_id = sample_flow->sampler->sampler_id; + pre_attr->sample_attr = *sample_attr; pre_esw_attr = pre_attr->esw_attr; pre_esw_attr->in_mdev = esw_attr->in_mdev; pre_esw_attr->in_rep = esw_attr->in_rep; @@ -633,11 +633,11 @@ mlx5e_tc_sample_unoffload(struct mlx5e_tc_psample *tc_psample, * will hit fw syndromes. */ esw = tc_psample->esw; - sample_flow = attr->sample_attr->sample_flow; + sample_flow = attr->sample_attr.sample_flow; mlx5_eswitch_del_offloaded_rule(esw, sample_flow->pre_rule, sample_flow->pre_attr);

sample_restore_put(tc_psample, sample_flow->restore); - mapping_remove(esw->offloads.reg_c0_obj_pool, attr->sample_attr->restore_obj_id); + mapping_remove(esw->offloads.reg_c0_obj_pool, attr->sample_attr.restore_obj_id); sampler_put(tc_psample, sample_flow->sampler); if (sample_flow->post_act_handle) mlx5e_tc_post_act_del(tc_psample->post_act, sample_flow->post_act_handle); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index b27532a9301e..7e5c00349ccf 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -1634,7 +1634,6 @@ static void mlx5e_tc_del_fdb_flow(struct mlx5e_priv *priv, if (flow_flag_test(flow, L3_TO_L2_DECAP)) mlx5e_detach_decap(priv, flow);

- kfree(attr->sample_attr); kvfree(attr->esw_attr->rx_tun_attr); kvfree(attr->parse_attr); kfree(flow->attr); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h index 5ffae9b13066..2f09e34db9ff 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.h @@ -71,7 +71,7 @@ struct mlx5_flow_attr { struct mlx5_fc *counter; struct mlx5_modify_hdr *modify_hdr; struct mlx5_ct_attr ct_attr; - struct mlx5e_sample_attr *sample_attr; + struct mlx5e_sample_attr sample_attr; struct mlx5e_tc_flow_parse_attr *parse_attr; u32 chain; u16 prio; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c index cfcd72bad9af..e7e7b4b0dcdb 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c @@ -201,12 +201,12 @@ esw_cleanup_decap_indir(struct mlx5_eswitch *esw, static int esw_setup_sampler_dest(struct mlx5_flow_destination *dest, struct mlx5_flow_act *flow_act, - struct mlx5_flow_attr *attr, + u32 sampler_id, int i) { flow_act->flags |= FLOW_ACT_IGNORE_FLOW_LEVEL; dest[i].type = MLX5_FLOW_DESTINATION_TYPE_FLOW_SAMPLER; - dest[i].sampler_id = attr->sample_attr->sampler_id; + dest[i].sampler_id = sampler_id;

return 0; } @@ -466,7 +466,7 @@ esw_setup_dests(struct mlx5_flow_destination *dest, attr->flags |= MLX5_ESW_ATTR_FLAG_SRC_REWRITE;

if (attr->flags & MLX5_ESW_ATTR_FLAG_SAMPLE) { - esw_setup_sampler_dest(dest, flow_act, attr, *i); + esw_setup_sampler_dest(dest, flow_act, attr->sample_attr.sampler_id, *i); (*i)++; } else if (attr->dest_ft) { esw_setup_ft_dest(dest, flow_act, esw, attr, spec, *i);

From: Philip Yang Philip.Yang@amd.com

[ Upstream commit 367c9b0f1b8750a704070e7ae85234d591290434 ]

svm_deferred_list work should continue to handle deferred_range_list which maybe split to child range to avoid child range leak, and remove ranges mmu interval notifier to avoid mm mm_count leak. So taking mm reference when adding range to deferred list, to ensure mm is valid in the scheduled deferred_list_work, and drop the mm referrence after range is handled.

Signed-off-by: Philip Yang Philip.Yang@amd.com Reported-by: Ruili Ji ruili.ji@amd.com Reviewed-by: Felix Kuehling Felix.Kuehling@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 62 ++++++++++++++++------------ 1 file changed, 36 insertions(+), 26 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c index f2805ba74c80..225affcddbc1 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c @@ -1985,10 +1985,9 @@ svm_range_update_notifier_and_interval_tree(struct mm_struct *mm, }

static void -svm_range_handle_list_op(struct svm_range_list *svms, struct svm_range *prange) +svm_range_handle_list_op(struct svm_range_list *svms, struct svm_range *prange, + struct mm_struct *mm) { - struct mm_struct *mm = prange->work_item.mm; - switch (prange->work_item.op) { case SVM_OP_NULL: pr_debug("NULL OP 0x%p prange 0x%p [0x%lx 0x%lx]\n", @@ -2071,34 +2070,41 @@ static void svm_range_deferred_list_work(struct work_struct *work) pr_debug("enter svms 0x%p\n", svms);

p = container_of(svms, struct kfd_process, svms); - /* Avoid mm is gone when inserting mmu notifier */ - mm = get_task_mm(p->lead_thread); - if (!mm) { - pr_debug("svms 0x%p process mm gone\n", svms); - return; - } -retry: - mmap_write_lock(mm); - - /* Checking for the need to drain retry faults must be inside - * mmap write lock to serialize with munmap notifiers. - */ - if (unlikely(atomic_read(&svms->drain_pagefaults))) { - mmap_write_unlock(mm); - svm_range_drain_retry_fault(svms); - goto retry; - }

spin_lock(&svms->deferred_list_lock); while (!list_empty(&svms->deferred_range_list)) { prange = list_first_entry(&svms->deferred_range_list, struct svm_range, deferred_list); - list_del_init(&prange->deferred_list); spin_unlock(&svms->deferred_list_lock);

pr_debug("prange 0x%p [0x%lx 0x%lx] op %d\n", prange, prange->start, prange->last, prange->work_item.op);

+ mm = prange->work_item.mm; +retry: + mmap_write_lock(mm); + + /* Checking for the need to drain retry faults must be inside + * mmap write lock to serialize with munmap notifiers. + */ + if (unlikely(atomic_read(&svms->drain_pagefaults))) { + mmap_write_unlock(mm); + svm_range_drain_retry_fault(svms); + goto retry; + } + + /* Remove from deferred_list must be inside mmap write lock, for + * two race cases: + * 1. unmap_from_cpu may change work_item.op and add the range + * to deferred_list again, cause use after free bug. + * 2. svm_range_list_lock_and_flush_work may hold mmap write + * lock and continue because deferred_list is empty, but + * deferred_list work is actually waiting for mmap lock. + */ + spin_lock(&svms->deferred_list_lock); + list_del_init(&prange->deferred_list); + spin_unlock(&svms->deferred_list_lock); + mutex_lock(&svms->lock); mutex_lock(&prange->migrate_mutex); while (!list_empty(&prange->child_list)) { @@ -2109,19 +2115,20 @@ static void svm_range_deferred_list_work(struct work_struct *work) pr_debug("child prange 0x%p op %d\n", pchild, pchild->work_item.op); list_del_init(&pchild->child_list); - svm_range_handle_list_op(svms, pchild); + svm_range_handle_list_op(svms, pchild, mm); } mutex_unlock(&prange->migrate_mutex);

- svm_range_handle_list_op(svms, prange); + svm_range_handle_list_op(svms, prange, mm); mutex_unlock(&svms->lock); + mmap_write_unlock(mm); + + /* Pairs with mmget in svm_range_add_list_work */ + mmput(mm);

spin_lock(&svms->deferred_list_lock); } spin_unlock(&svms->deferred_list_lock); - - mmap_write_unlock(mm); - mmput(mm); pr_debug("exit svms 0x%p\n", svms); }

@@ -2139,6 +2146,9 @@ svm_range_add_list_work(struct svm_range_list *svms, struct svm_range *prange, prange->work_item.op = op; } else { prange->work_item.op = op; + + /* Pairs with mmput in deferred_list_work */ + mmget(mm); prange->work_item.mm = mm; list_add_tail(&prange->deferred_list, &prange->svms->deferred_range_list);

From: "Tianci.Yin" tianci.yin@amd.com

[ Upstream commit 7270e8957eb9aacf5914605d04865f3829a14bce ]

[why] In rmmod procedure, kfd sends cp a dequeue request, but the request does not get response, then an error message "cp queue pipe 4 queue 0 preemption failed" printed.

[how] Performing kfd suspending after disabling gfxoff can fix it.

Acked-by: Felix Kuehling Felix.Kuehling@amd.com Reviewed-by: Yang Wang kevinyang.wang@amd.com Signed-off-by: Tianci.Yin tianci.yin@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index ed077de426d9..b793682071b2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2708,11 +2708,11 @@ static int amdgpu_device_ip_fini_early(struct amdgpu_device *adev) } }

- amdgpu_amdkfd_suspend(adev, false); - amdgpu_device_set_pg_state(adev, AMD_PG_STATE_UNGATE); amdgpu_device_set_cg_state(adev, AMD_CG_STATE_UNGATE);

+ amdgpu_amdkfd_suspend(adev, false); + /* Workaroud for ASICs need to disable SMC first */ amdgpu_device_smu_fini_early(adev);

From: Jack Wang jinpu.wang@ionos.com

[ Upstream commit c1289d5d8502d62e5bc50ff066c9d6daabfc3264 ]

We can't do instant reconnect, not to DDoS server, but we should stop and failover earlier, so there is less service interruption.

To avoid deadlock, as error_recovery is called from different callback like rdma event or hb error handler, add a new err recovery_work.

Link: https://lore.kernel.org/r/20220114154753.983568-6-haris.iqbal@ionos.com Signed-off-by: Jack Wang jinpu.wang@ionos.com Reviewed-by: Aleksei Marov aleksei.marov@ionos.com Reviewed-by: Md Haris Iqbal haris.iqbal@ionos.com Signed-off-by: Md Haris Iqbal haris.iqbal@ionos.com Signed-off-by: Jason Gunthorpe jgg@nvidia.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/ulp/rtrs/rtrs-clt.c | 40 ++++++++++++++------------ drivers/infiniband/ulp/rtrs/rtrs-clt.h | 1 + 2 files changed, 23 insertions(+), 18 deletions(-)

diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.c b/drivers/infiniband/ulp/rtrs/rtrs-clt.c index 759b85f03331..df4d06d4d183 100644 --- a/drivers/infiniband/ulp/rtrs/rtrs-clt.c +++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.c @@ -297,6 +297,7 @@ static bool rtrs_clt_change_state_from_to(struct rtrs_clt_path *clt_path, return changed; }

+static void rtrs_clt_stop_and_destroy_conns(struct rtrs_clt_path *clt_path); static void rtrs_rdma_error_recovery(struct rtrs_clt_con *con) { struct rtrs_clt_path *clt_path = to_clt_path(con->c.path); @@ -304,16 +305,7 @@ static void rtrs_rdma_error_recovery(struct rtrs_clt_con *con) if (rtrs_clt_change_state_from_to(clt_path, RTRS_CLT_CONNECTED, RTRS_CLT_RECONNECTING)) { - struct rtrs_clt_sess *clt = clt_path->clt; - unsigned int delay_ms; - - /* - * Normal scenario, reconnect if we were successfully connected - */ - delay_ms = clt->reconnect_delay_sec * 1000; - queue_delayed_work(rtrs_wq, &clt_path->reconnect_dwork, - msecs_to_jiffies(delay_ms + - prandom_u32() % RTRS_RECONNECT_SEED)); + queue_work(rtrs_wq, &clt_path->err_recovery_work); } else { /* * Error can happen just on establishing new connection, @@ -1511,6 +1503,22 @@ static void rtrs_clt_init_hb(struct rtrs_clt_path *clt_path) static void rtrs_clt_reconnect_work(struct work_struct *work); static void rtrs_clt_close_work(struct work_struct *work);

+static void rtrs_clt_err_recovery_work(struct work_struct *work) +{ + struct rtrs_clt_path *clt_path; + struct rtrs_clt_sess *clt; + int delay_ms; + + clt_path = container_of(work, struct rtrs_clt_path, err_recovery_work); + clt = clt_path->clt; + delay_ms = clt->reconnect_delay_sec * 1000; + rtrs_clt_stop_and_destroy_conns(clt_path); + queue_delayed_work(rtrs_wq, &clt_path->reconnect_dwork, + msecs_to_jiffies(delay_ms + + prandom_u32() % + RTRS_RECONNECT_SEED)); +} + static struct rtrs_clt_path *alloc_path(struct rtrs_clt_sess *clt, const struct rtrs_addr *path, size_t con_num, u32 nr_poll_queues) @@ -1562,6 +1570,7 @@ static struct rtrs_clt_path *alloc_path(struct rtrs_clt_sess *clt, clt_path->state = RTRS_CLT_CONNECTING; atomic_set(&clt_path->connected_cnt, 0); INIT_WORK(&clt_path->close_work, rtrs_clt_close_work); + INIT_WORK(&clt_path->err_recovery_work, rtrs_clt_err_recovery_work); INIT_DELAYED_WORK(&clt_path->reconnect_dwork, rtrs_clt_reconnect_work); rtrs_clt_init_hb(clt_path);

@@ -2326,6 +2335,7 @@ static void rtrs_clt_close_work(struct work_struct *work)

clt_path = container_of(work, struct rtrs_clt_path, close_work);

+ cancel_work_sync(&clt_path->err_recovery_work); cancel_delayed_work_sync(&clt_path->reconnect_dwork); rtrs_clt_stop_and_destroy_conns(clt_path); rtrs_clt_change_state_get_old(clt_path, RTRS_CLT_CLOSED, NULL); @@ -2638,7 +2648,6 @@ static void rtrs_clt_reconnect_work(struct work_struct *work) { struct rtrs_clt_path *clt_path; struct rtrs_clt_sess *clt; - unsigned int delay_ms; int err;

clt_path = container_of(to_delayed_work(work), struct rtrs_clt_path, @@ -2655,8 +2664,6 @@ static void rtrs_clt_reconnect_work(struct work_struct *work) } clt_path->reconnect_attempts++;

- /* Stop everything */ - rtrs_clt_stop_and_destroy_conns(clt_path); msleep(RTRS_RECONNECT_BACKOFF); if (rtrs_clt_change_state_get_old(clt_path, RTRS_CLT_CONNECTING, NULL)) { err = init_path(clt_path); @@ -2669,11 +2676,7 @@ static void rtrs_clt_reconnect_work(struct work_struct *work) reconnect_again: if (rtrs_clt_change_state_get_old(clt_path, RTRS_CLT_RECONNECTING, NULL)) { clt_path->stats->reconnects.fail_cnt++; - delay_ms = clt->reconnect_delay_sec * 1000; - queue_delayed_work(rtrs_wq, &clt_path->reconnect_dwork, - msecs_to_jiffies(delay_ms + - prandom_u32() % - RTRS_RECONNECT_SEED)); + queue_work(rtrs_wq, &clt_path->err_recovery_work); } }

@@ -2908,6 +2911,7 @@ int rtrs_clt_reconnect_from_sysfs(struct rtrs_clt_path *clt_path) &old_state); if (changed) { clt_path->reconnect_attempts = 0; + rtrs_clt_stop_and_destroy_conns(clt_path); queue_delayed_work(rtrs_wq, &clt_path->reconnect_dwork, 0); } if (changed || old_state == RTRS_CLT_RECONNECTING) { diff --git a/drivers/infiniband/ulp/rtrs/rtrs-clt.h b/drivers/infiniband/ulp/rtrs/rtrs-clt.h index d1b18a154ae0..f848c0392d98 100644 --- a/drivers/infiniband/ulp/rtrs/rtrs-clt.h +++ b/drivers/infiniband/ulp/rtrs/rtrs-clt.h @@ -134,6 +134,7 @@ struct rtrs_clt_path { struct rtrs_clt_io_req *reqs; struct delayed_work reconnect_dwork; struct work_struct close_work; + struct work_struct err_recovery_work; unsigned int reconnect_attempts; bool established; struct rtrs_rbuf *rbufs;

From: Maxim Kiselev bigunclemax@gmail.com

[ Upstream commit 17846485dff91acce1ad47b508b633dffc32e838 ]

T1040RDB has two RTL8211E-VB phys which requires setting of internal delays for correct work.

Changing the phy-connection-type property to `rgmii-id` will fix this issue.

Signed-off-by: Maxim Kiselev bigunclemax@gmail.com Reviewed-by: Maxim Kochetkov fido_max@inbox.ru Reviewed-by: Vladimir Oltean vladimir.oltean@nxp.com Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20211230151123.1258321-1-bigunclemax@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/boot/dts/fsl/t104xrdb.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/boot/dts/fsl/t104xrdb.dtsi b/arch/powerpc/boot/dts/fsl/t104xrdb.dtsi index 099a598c74c0..bfe1ed5be337 100644 --- a/arch/powerpc/boot/dts/fsl/t104xrdb.dtsi +++ b/arch/powerpc/boot/dts/fsl/t104xrdb.dtsi @@ -139,12 +139,12 @@ pca9546@77 { fman@400000 { ethernet@e6000 { phy-handle = <&phy_rgmii_0>; - phy-connection-type = "rgmii"; + phy-connection-type = "rgmii-id"; };

ethernet@e8000 { phy-handle = <&phy_rgmii_1>; - phy-connection-type = "rgmii"; + phy-connection-type = "rgmii-id"; };

mdio0: mdio@fc000 {

From: Kalle Valo quic_kvalo@quicinc.com

[ Upstream commit b4f4c56459a5c744f7f066b9fc2b54ea995030c5 ]

Mario reported that the kernel was crashing on suspend if ath11k was not able to find a board file:

[ 473.693286] PM: Suspending system (s2idle) [ 473.693291] printk: Suspending console(s) (use no_console_suspend to debug) [ 474.407787] BUG: unable to handle page fault for address: 0000000000002070 [ 474.407791] #PF: supervisor read access in kernel mode [ 474.407794] #PF: error_code(0x0000) - not-present page [ 474.407798] PGD 0 P4D 0 [ 474.407801] Oops: 0000 [#1] PREEMPT SMP NOPTI [ 474.407805] CPU: 2 PID: 2350 Comm: kworker/u32:14 Tainted: G W 5.16.0 #248 [...] [ 474.407868] Call Trace: [ 474.407870] <TASK> [ 474.407874] ? _raw_spin_lock_irqsave+0x2a/0x60 [ 474.407882] ? lock_timer_base+0x72/0xa0 [ 474.407889] ? _raw_spin_unlock_irqrestore+0x29/0x3d [ 474.407892] ? try_to_del_timer_sync+0x54/0x80 [ 474.407896] ath11k_dp_rx_pktlog_stop+0x49/0xc0 [ath11k] [ 474.407912] ath11k_core_suspend+0x34/0x130 [ath11k] [ 474.407923] ath11k_pci_pm_suspend+0x1b/0x50 [ath11k_pci] [ 474.407928] pci_pm_suspend+0x7e/0x170 [ 474.407935] ? pci_pm_freeze+0xc0/0xc0 [ 474.407939] dpm_run_callback+0x4e/0x150 [ 474.407947] __device_suspend+0x148/0x4c0 [ 474.407951] async_suspend+0x20/0x90 dmesg-efi-164255130401001: Oops#1 Part1 [ 474.407955] async_run_entry_fn+0x33/0x120 [ 474.407959] process_one_work+0x220/0x3f0 [ 474.407966] worker_thread+0x4a/0x3d0 [ 474.407971] kthread+0x17a/0x1a0 [ 474.407975] ? process_one_work+0x3f0/0x3f0 [ 474.407979] ? set_kthread_struct+0x40/0x40 [ 474.407983] ret_from_fork+0x22/0x30 [ 474.407991] </TASK>

The issue here is that board file loading happens after ath11k_pci_probe() succesfully returns (ath11k initialisation happends asynchronously) and the suspend handler is still enabled, of course failing as ath11k is not properly initialised. Fix this by checking ATH11K_FLAG_QMI_FAIL during both suspend and resume.

Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-03003-QCAHSPSWPL_V1_V2_SILICONZ_LITE-2

Reported-by: Mario Limonciello mario.limonciello@amd.com Link: https://bugzilla.kernel.org/show_bug.cgi?id=215504 Signed-off-by: Kalle Valo quic_kvalo@quicinc.com Link: https://lore.kernel.org/r/20220127090117.2024-1-kvalo@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath11k/pci.c | 10 ++++++++++ 1 file changed, 10 insertions(+)

diff --git a/drivers/net/wireless/ath/ath11k/pci.c b/drivers/net/wireless/ath/ath11k/pci.c index de71ad594f34..903758751c99 100644 --- a/drivers/net/wireless/ath/ath11k/pci.c +++ b/drivers/net/wireless/ath/ath11k/pci.c @@ -1571,6 +1571,11 @@ static __maybe_unused int ath11k_pci_pm_suspend(struct device *dev) struct ath11k_base *ab = dev_get_drvdata(dev); int ret;

+ if (test_bit(ATH11K_FLAG_QMI_FAIL, &ab->dev_flags)) { + ath11k_dbg(ab, ATH11K_DBG_BOOT, "boot skipping pci suspend as qmi is not initialised\n"); + return 0; + } + ret = ath11k_core_suspend(ab); if (ret) ath11k_warn(ab, "failed to suspend core: %d\n", ret); @@ -1583,6 +1588,11 @@ static __maybe_unused int ath11k_pci_pm_resume(struct device *dev) struct ath11k_base *ab = dev_get_drvdata(dev); int ret;

+ if (test_bit(ATH11K_FLAG_QMI_FAIL, &ab->dev_flags)) { + ath11k_dbg(ab, ATH11K_DBG_BOOT, "boot skipping pci resume as qmi is not initialised\n"); + return 0; + } + ret = ath11k_core_resume(ab); if (ret) ath11k_warn(ab, "failed to resume core: %d\n", ret);

From: Tony Lu tonylu@linux.alibaba.com

[ Upstream commit ea785a1a573b390a150010b3c5b81e1ccd8c98a8 ]

According to the man page of TCP_CORK [1], if set, don't send out partial frames. All queued partial frames are sent when option is cleared again.

When applications call setsockopt to disable TCP_CORK, this call is protected by lock_sock(), and tries to mod_delayed_work() to 0, in order to send pending data right now. However, the delayed work smc_tx_work is also protected by lock_sock(). There introduces lock contention for sending data.

To fix it, send pending data directly which acts like TCP, without lock_sock() protected in the context of setsockopt (already lock_sock()ed), and cancel unnecessary dealyed work, which is protected by lock.

[1] https://linux.die.net/man/7/tcp

Signed-off-by: Tony Lu tonylu@linux.alibaba.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- net/smc/af_smc.c | 4 ++-- net/smc/smc_tx.c | 25 +++++++++++++++---------- net/smc/smc_tx.h | 1 + 3 files changed, 18 insertions(+), 12 deletions(-)

diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index 284befa90967..67fc72047c9c 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -2636,8 +2636,8 @@ static int smc_setsockopt(struct socket *sock, int level, int optname, sk->sk_state != SMC_CLOSED) { if (!val) { SMC_STAT_INC(smc, cork_cnt); - mod_delayed_work(smc->conn.lgr->tx_wq, - &smc->conn.tx_work, 0); + smc_tx_pending(&smc->conn); + cancel_delayed_work(&smc->conn.tx_work); } } break; diff --git a/net/smc/smc_tx.c b/net/smc/smc_tx.c index be241d53020f..7b0b6e24582f 100644 --- a/net/smc/smc_tx.c +++ b/net/smc/smc_tx.c @@ -597,27 +597,32 @@ int smc_tx_sndbuf_nonempty(struct smc_connection *conn) return rc; }

-/* Wakeup sndbuf consumers from process context - * since there is more data to transmit - */ -void smc_tx_work(struct work_struct *work) +void smc_tx_pending(struct smc_connection *conn) { - struct smc_connection *conn = container_of(to_delayed_work(work), - struct smc_connection, - tx_work); struct smc_sock *smc = container_of(conn, struct smc_sock, conn); int rc;

- lock_sock(&smc->sk); if (smc->sk.sk_err) - goto out; + return;

rc = smc_tx_sndbuf_nonempty(conn); if (!rc && conn->local_rx_ctrl.prod_flags.write_blocked && !atomic_read(&conn->bytes_to_rcv)) conn->local_rx_ctrl.prod_flags.write_blocked = 0; +} + +/* Wakeup sndbuf consumers from process context + * since there is more data to transmit + */ +void smc_tx_work(struct work_struct *work) +{ + struct smc_connection *conn = container_of(to_delayed_work(work), + struct smc_connection, + tx_work); + struct smc_sock *smc = container_of(conn, struct smc_sock, conn);

-out: + lock_sock(&smc->sk); + smc_tx_pending(conn); release_sock(&smc->sk); }

diff --git a/net/smc/smc_tx.h b/net/smc/smc_tx.h index 07e6ad76224a..a59f370b8b43 100644 --- a/net/smc/smc_tx.h +++ b/net/smc/smc_tx.h @@ -27,6 +27,7 @@ static inline int smc_tx_prepared_sends(struct smc_connection *conn) return smc_curs_diff(conn->sndbuf_desc->len, &sent, &prep); }

+void smc_tx_pending(struct smc_connection *conn); void smc_tx_work(struct work_struct *work); void smc_tx_init(struct smc_sock *smc); int smc_tx_sendmsg(struct smc_sock *smc, struct msghdr *msg, size_t len);

From: Jakub Sitnicki jakub@cloudflare.com

[ Upstream commit 4421a582718ab81608d8486734c18083b822390d ]

Menglong Dong reports that the documentation for the dst_port field in struct bpf_sock is inaccurate and confusing. From the BPF program PoV, the field is a zero-padded 16-bit integer in network byte order. The value appears to the BPF user as if laid out in memory as so:

offsetof(struct bpf_sock, dst_port) + 0 <port MSB> + 8 <port LSB> +16 0x00 +24 0x00

32-, 16-, and 8-bit wide loads from the field are all allowed, but only if the offset into the field is 0.

32-bit wide loads from dst_port are especially confusing. The loaded value, after converting to host byte order with bpf_ntohl(dst_port), contains the port number in the upper 16-bits.

Remove the confusion by splitting the field into two 16-bit fields. For backward compatibility, allow 32-bit wide loads from offsetof(struct bpf_sock, dst_port).

While at it, allow loads 8-bit loads at offset [0] and [1] from dst_port.

Reported-by: Menglong Dong imagedong@tencent.com Signed-off-by: Jakub Sitnicki jakub@cloudflare.com Link: https://lore.kernel.org/r/20220130115518.213259-2-jakub@cloudflare.com Signed-off-by: Alexei Starovoitov ast@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- include/uapi/linux/bpf.h | 3 ++- net/core/filter.c | 10 +++++++++- 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h index b0383d371b9a..1275b08e9deb 100644 --- a/include/uapi/linux/bpf.h +++ b/include/uapi/linux/bpf.h @@ -5500,7 +5500,8 @@ struct bpf_sock { __u32 src_ip4; __u32 src_ip6[4]; __u32 src_port; /* host byte order */ - __u32 dst_port; /* network byte order */ + __be16 dst_port; /* network byte order */ + __u16 :16; /* zero padding */ __u32 dst_ip4; __u32 dst_ip6[4]; __u32 state; diff --git a/net/core/filter.c b/net/core/filter.c index 9eb785842258..82fcb7533663 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -8033,6 +8033,7 @@ bool bpf_sock_is_valid_access(int off, int size, enum bpf_access_type type, struct bpf_insn_access_aux *info) { const int size_default = sizeof(__u32); + int field_size;

if (off < 0 || off >= sizeof(struct bpf_sock)) return false; @@ -8044,7 +8045,6 @@ bool bpf_sock_is_valid_access(int off, int size, enum bpf_access_type type, case offsetof(struct bpf_sock, family): case offsetof(struct bpf_sock, type): case offsetof(struct bpf_sock, protocol): - case offsetof(struct bpf_sock, dst_port): case offsetof(struct bpf_sock, src_port): case offsetof(struct bpf_sock, rx_queue_mapping): case bpf_ctx_range(struct bpf_sock, src_ip4): @@ -8053,6 +8053,14 @@ bool bpf_sock_is_valid_access(int off, int size, enum bpf_access_type type, case bpf_ctx_range_till(struct bpf_sock, dst_ip6[0], dst_ip6[3]): bpf_ctx_record_field_size(info, size_default); return bpf_ctx_narrow_access_ok(off, size, size_default); + case bpf_ctx_range(struct bpf_sock, dst_port): + field_size = size == size_default ? + size_default : sizeof_field(struct bpf_sock, dst_port); + bpf_ctx_record_field_size(info, field_size); + return bpf_ctx_narrow_access_ok(off, size, field_size); + case offsetofend(struct bpf_sock, dst_port) ... + offsetof(struct bpf_sock, dst_ip4) - 1: + return false; }

return size == size_default;

From: Yang Guang yang.guang5@zte.com.cn

[ Upstream commit 2245ea91fd3a04cafbe2f54911432a8657528c3b ]

coccinelle report: ./drivers/scsi/bfa/bfad_attr.c:908:8-16: WARNING: use scnprintf or sprintf ./drivers/scsi/bfa/bfad_attr.c:860:8-16: WARNING: use scnprintf or sprintf ./drivers/scsi/bfa/bfad_attr.c:888:8-16: WARNING: use scnprintf or sprintf ./drivers/scsi/bfa/bfad_attr.c:853:8-16: WARNING: use scnprintf or sprintf ./drivers/scsi/bfa/bfad_attr.c:808:8-16: WARNING: use scnprintf or sprintf ./drivers/scsi/bfa/bfad_attr.c:728:8-16: WARNING: use scnprintf or sprintf ./drivers/scsi/bfa/bfad_attr.c:822:8-16: WARNING: use scnprintf or sprintf ./drivers/scsi/bfa/bfad_attr.c:927:9-17: WARNING: use scnprintf or sprintf ./drivers/scsi/bfa/bfad_attr.c:900:8-16: WARNING: use scnprintf or sprintf ./drivers/scsi/bfa/bfad_attr.c:874:8-16: WARNING: use scnprintf or sprintf ./drivers/scsi/bfa/bfad_attr.c:714:8-16: WARNING: use scnprintf or sprintf ./drivers/scsi/bfa/bfad_attr.c:839:8-16: WARNING: use scnprintf or sprintf

Use sysfs_emit() instead of scnprintf() or sprintf().

Link: https://lore.kernel.org/r/def83ff75faec64ba592b867a8499b1367bae303.164318146... Reported-by: Zeal Robot zealci@zte.com.cn Signed-off-by: Yang Guang yang.guang5@zte.com.cn Signed-off-by: David Yang davidcomponentone@gmail.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/bfa/bfad_attr.c | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/scsi/bfa/bfad_attr.c b/drivers/scsi/bfa/bfad_attr.c index f46989bd083c..5a85401e9e2d 100644 --- a/drivers/scsi/bfa/bfad_attr.c +++ b/drivers/scsi/bfa/bfad_attr.c @@ -711,7 +711,7 @@ bfad_im_serial_num_show(struct device *dev, struct device_attribute *attr, char serial_num[BFA_ADAPTER_SERIAL_NUM_LEN];

bfa_get_adapter_serial_num(&bfad->bfa, serial_num); - return snprintf(buf, PAGE_SIZE, "%s\n", serial_num); + return sysfs_emit(buf, "%s\n", serial_num); }

static ssize_t @@ -725,7 +725,7 @@ bfad_im_model_show(struct device *dev, struct device_attribute *attr, char model[BFA_ADAPTER_MODEL_NAME_LEN];

bfa_get_adapter_model(&bfad->bfa, model); - return snprintf(buf, PAGE_SIZE, "%s\n", model); + return sysfs_emit(buf, "%s\n", model); }

static ssize_t @@ -805,7 +805,7 @@ bfad_im_model_desc_show(struct device *dev, struct device_attribute *attr, snprintf(model_descr, BFA_ADAPTER_MODEL_DESCR_LEN, "Invalid Model");

- return snprintf(buf, PAGE_SIZE, "%s\n", model_descr); + return sysfs_emit(buf, "%s\n", model_descr); }

static ssize_t @@ -819,7 +819,7 @@ bfad_im_node_name_show(struct device *dev, struct device_attribute *attr, u64 nwwn;

nwwn = bfa_fcs_lport_get_nwwn(port->fcs_port); - return snprintf(buf, PAGE_SIZE, "0x%llx\n", cpu_to_be64(nwwn)); + return sysfs_emit(buf, "0x%llx\n", cpu_to_be64(nwwn)); }

static ssize_t @@ -836,7 +836,7 @@ bfad_im_symbolic_name_show(struct device *dev, struct device_attribute *attr, bfa_fcs_lport_get_attr(&bfad->bfa_fcs.fabric.bport, &port_attr); strlcpy(symname, port_attr.port_cfg.sym_name.symname, BFA_SYMNAME_MAXLEN); - return snprintf(buf, PAGE_SIZE, "%s\n", symname); + return sysfs_emit(buf, "%s\n", symname); }

static ssize_t @@ -850,14 +850,14 @@ bfad_im_hw_version_show(struct device *dev, struct device_attribute *attr, char hw_ver[BFA_VERSION_LEN];

bfa_get_pci_chip_rev(&bfad->bfa, hw_ver); - return snprintf(buf, PAGE_SIZE, "%s\n", hw_ver); + return sysfs_emit(buf, "%s\n", hw_ver); }

static ssize_t bfad_im_drv_version_show(struct device *dev, struct device_attribute *attr, char *buf) { - return snprintf(buf, PAGE_SIZE, "%s\n", BFAD_DRIVER_VERSION); + return sysfs_emit(buf, "%s\n", BFAD_DRIVER_VERSION); }

static ssize_t @@ -871,7 +871,7 @@ bfad_im_optionrom_version_show(struct device *dev, char optrom_ver[BFA_VERSION_LEN];

bfa_get_adapter_optrom_ver(&bfad->bfa, optrom_ver); - return snprintf(buf, PAGE_SIZE, "%s\n", optrom_ver); + return sysfs_emit(buf, "%s\n", optrom_ver); }

static ssize_t @@ -885,7 +885,7 @@ bfad_im_fw_version_show(struct device *dev, struct device_attribute *attr, char fw_ver[BFA_VERSION_LEN];

bfa_get_adapter_fw_ver(&bfad->bfa, fw_ver); - return snprintf(buf, PAGE_SIZE, "%s\n", fw_ver); + return sysfs_emit(buf, "%s\n", fw_ver); }

static ssize_t @@ -897,7 +897,7 @@ bfad_im_num_of_ports_show(struct device *dev, struct device_attribute *attr, (struct bfad_im_port_s *) shost->hostdata[0]; struct bfad_s *bfad = im_port->bfad;

- return snprintf(buf, PAGE_SIZE, "%d\n", + return sysfs_emit(buf, "%d\n", bfa_get_nports(&bfad->bfa)); }

@@ -905,7 +905,7 @@ static ssize_t bfad_im_drv_name_show(struct device *dev, struct device_attribute *attr, char *buf) { - return snprintf(buf, PAGE_SIZE, "%s\n", BFAD_DRIVER_NAME); + return sysfs_emit(buf, "%s\n", BFAD_DRIVER_NAME); }

static ssize_t @@ -924,14 +924,14 @@ bfad_im_num_of_discovered_ports_show(struct device *dev, rports = kcalloc(nrports, sizeof(struct bfa_rport_qualifier_s), GFP_ATOMIC); if (rports == NULL) - return snprintf(buf, PAGE_SIZE, "Failed\n"); + return sysfs_emit(buf, "Failed\n");

spin_lock_irqsave(&bfad->bfad_lock, flags); bfa_fcs_lport_get_rport_quals(port->fcs_port, rports, &nrports); spin_unlock_irqrestore(&bfad->bfad_lock, flags); kfree(rports);

- return snprintf(buf, PAGE_SIZE, "%d\n", nrports); + return sysfs_emit(buf, "%d\n", nrports); }

static DEVICE_ATTR(serial_number, S_IRUGO,

From: Evgeny Boger boger@wirenboard.com

[ Upstream commit d4f408cdcd26921c1268cb8dcbe8ffb6faf837f3 ]

As stated in [1], negative current values are used for discharging batteries.

AXP PMICs internally have two different ADC channels for shunt current measurement: one used during charging and one during discharging. The values reported by these ADCs are unsigned. While the driver properly selects ADC channel to get the data from, it doesn't apply negative sign when reporting discharging current.

[1] Documentation/ABI/testing/sysfs-class-power

Signed-off-by: Evgeny Boger boger@wirenboard.com Acked-by: Chen-Yu Tsai wens@csie.org Signed-off-by: Sebastian Reichel sebastian.reichel@collabora.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/power/supply/axp20x_battery.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/power/supply/axp20x_battery.c b/drivers/power/supply/axp20x_battery.c index 5d197141f476..9106077c0dbb 100644 --- a/drivers/power/supply/axp20x_battery.c +++ b/drivers/power/supply/axp20x_battery.c @@ -186,7 +186,6 @@ static int axp20x_battery_get_prop(struct power_supply *psy, union power_supply_propval *val) { struct axp20x_batt_ps *axp20x_batt = power_supply_get_drvdata(psy); - struct iio_channel *chan; int ret = 0, reg, val1;

switch (psp) { @@ -266,12 +265,12 @@ static int axp20x_battery_get_prop(struct power_supply *psy, if (ret) return ret;

- if (reg & AXP20X_PWR_STATUS_BAT_CHARGING) - chan = axp20x_batt->batt_chrg_i; - else - chan = axp20x_batt->batt_dischrg_i; - - ret = iio_read_channel_processed(chan, &val->intval); + if (reg & AXP20X_PWR_STATUS_BAT_CHARGING) { + ret = iio_read_channel_processed(axp20x_batt->batt_chrg_i, &val->intval); + } else { + ret = iio_read_channel_processed(axp20x_batt->batt_dischrg_i, &val1); + val->intval = -val1; + } if (ret) return ret;

From: Lorenzo Bianconi lorenzo@kernel.org

[ Upstream commit 577298ec55dfc8b9aece54520f0258c3f93a6573 ]

Even if it is only a false-positive since skip_buf0/skip_buf1 are only used in mt76_dma_tx_cleanup_idx routine, initialize skip_unmap in mt76_dma_rx_fill in order to fix the following UBSAN report:

[ 13.924906] UBSAN: invalid-load in linux-5.15.0/drivers/net/wireless/mediatek/mt76/dma.c:162:13 [ 13.924909] load of value 225 is not a valid value for type '_Bool' [ 13.924912] CPU: 9 PID: 672 Comm: systemd-udevd Not tainted 5.15.0-18-generic #18-Ubuntu [ 13.924914] Hardware name: LENOVO 21A0000CMX/21A0000CMX, BIOS R1MET43W (1.13 ) 11/05/2021 [ 13.924915] Call Trace: [ 13.924917] <TASK> [ 13.924920] show_stack+0x52/0x58 [ 13.924925] dump_stack_lvl+0x4a/0x5f [ 13.924931] dump_stack+0x10/0x12 [ 13.924932] ubsan_epilogue+0x9/0x45 [ 13.924934] __ubsan_handle_load_invalid_value.cold+0x44/0x49 [ 13.924935] ? __iommu_dma_map+0x84/0xf0 [ 13.924939] mt76_dma_add_buf.constprop.0.cold+0x23/0x85 [mt76] [ 13.924949] mt76_dma_rx_fill.isra.0+0x102/0x1f0 [mt76] [ 13.924954] mt76_dma_init+0xc9/0x150 [mt76] [ 13.924959] ? mt7921_dma_enable+0x110/0x110 [mt7921e] [ 13.924966] mt7921_dma_init+0x1e3/0x260 [mt7921e] [ 13.924970] mt7921_register_device+0x29d/0x510 [mt7921e] [ 13.924975] mt7921_pci_probe.part.0+0x17f/0x1b0 [mt7921e] [ 13.924980] mt7921_pci_probe+0x43/0x60 [mt7921e] [ 13.924984] local_pci_probe+0x4b/0x90 [ 13.924987] pci_device_probe+0x115/0x1f0 [ 13.924989] really_probe+0x21e/0x420 [ 13.924992] __driver_probe_device+0x115/0x190 [ 13.924994] driver_probe_device+0x23/0xc0 [ 13.924996] __driver_attach+0xbd/0x1d0 [ 13.924998] ? __device_attach_driver+0x110/0x110 [ 13.924999] bus_for_each_dev+0x7e/0xc0 [ 13.925001] driver_attach+0x1e/0x20 [ 13.925003] bus_add_driver+0x135/0x200 [ 13.925005] driver_register+0x95/0xf0 [ 13.925008] ? 0xffffffffc0766000 [ 13.925010] __pci_register_driver+0x68/0x70 [ 13.925011] mt7921_pci_driver_init+0x23/0x1000 [mt7921e] [ 13.925015] do_one_initcall+0x48/0x1d0 [ 13.925019] ? kmem_cache_alloc_trace+0x19e/0x2e0 [ 13.925022] do_init_module+0x62/0x280 [ 13.925025] load_module+0xac9/0xbb0 [ 13.925027] __do_sys_finit_module+0xbf/0x120 [ 13.925029] __x64_sys_finit_module+0x18/0x20 [ 13.925030] do_syscall_64+0x5c/0xc0 [ 13.925033] ? do_syscall_64+0x69/0xc0 [ 13.925034] ? sysvec_reschedule_ipi+0x78/0xe0 [ 13.925036] ? asm_sysvec_reschedule_ipi+0xa/0x20 [ 13.925039] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 13.925040] RIP: 0033:0x7fbf2b90f94d [ 13.925045] RSP: 002b:00007ffe2ec7e5d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139 [ 13.925047] RAX: ffffffffffffffda RBX: 000056106b0634e0 RCX: 00007fbf2b90f94d [ 13.925048] RDX: 0000000000000000 RSI: 00007fbf2baa3441 RDI: 0000000000000013 [ 13.925049] RBP: 0000000000020000 R08: 0000000000000000 R09: 0000000000000002 [ 13.925050] R10: 0000000000000013 R11: 0000000000000246 R12: 00007fbf2baa3441 [ 13.925051] R13: 000056106b062620 R14: 000056106b0610c0 R15: 000056106b0640d0 [ 13.925053] </TASK>

Signed-off-by: Lorenzo Bianconi lorenzo@kernel.org Signed-off-by: Felix Fietkau nbd@nbd.name Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/mediatek/mt76/dma.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c index 3a9af8931c35..3d644925a4e0 100644 --- a/drivers/net/wireless/mediatek/mt76/dma.c +++ b/drivers/net/wireless/mediatek/mt76/dma.c @@ -465,6 +465,7 @@ mt76_dma_rx_fill(struct mt76_dev *dev, struct mt76_queue *q)

qbuf.addr = addr + offset; qbuf.len = len - offset; + qbuf.skip_unmap = false; mt76_dma_add_buf(dev, q, &qbuf, 1, 0, buf, NULL); frames++; }

From: Avraham Stern avraham.stern@intel.com

[ Upstream commit 5666ee154f4696c011dfa8544aaf5591b6b87515 ]

When adding 6GHz channels to scan request based on reported co-located APs, don't add channels that have only APs with "non-transmitted" BSSes if they only match the wildcard SSID since they will be found by probing the "transmitted" BSS.

Signed-off-by: Avraham Stern avraham.stern@intel.com Signed-off-by: Luca Coelho luciano.coelho@intel.com Link: https://lore.kernel.org/r/iwlwifi.20220202104617.f6ddf099f934.I231e55885d364... Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- net/wireless/scan.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/net/wireless/scan.c b/net/wireless/scan.c index b888522f133b..b2fdac96bab0 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -700,8 +700,12 @@ static bool cfg80211_find_ssid_match(struct cfg80211_colocated_ap *ap,

for (i = 0; i < request->n_ssids; i++) { /* wildcard ssid in the scan request */ - if (!request->ssids[i].ssid_len) + if (!request->ssids[i].ssid_len) { + if (ap->multi_bss && !ap->transmitted_bssid) + continue; + return true; + }

if (ap->ssid_len && ap->ssid_len == request->ssids[i].ssid_len) { @@ -827,6 +831,9 @@ static int cfg80211_scan_6ghz(struct cfg80211_registered_device *rdev) !cfg80211_find_ssid_match(ap, request)) continue;

+ if (!request->n_ssids && ap->multi_bss && !ap->transmitted_bssid) + continue; + cfg80211_scan_req_add_chan(request, chan, true); memcpy(scan_6ghz_params->bssid, ap->bssid, ETH_ALEN); scan_6ghz_params->short_ssid = ap->short_ssid;

From: Eric Dumazet edumazet@google.com

[ Upstream commit 145c7a793838add5e004e7d49a67654dc7eba147 ]

This fixes minor data-races in ip6_mc_input() and batadv_mcast_mla_rtr_flags_softif_get_ipv6()

Signed-off-by: Eric Dumazet edumazet@google.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- include/linux/ipv6.h | 2 +- net/batman-adv/multicast.c | 2 +- net/ipv6/addrconf.c | 4 ++-- net/ipv6/ip6_input.c | 2 +- net/ipv6/ip6mr.c | 8 ++++---- 5 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h index a59d25f19385..b8641dc0ee66 100644 --- a/include/linux/ipv6.h +++ b/include/linux/ipv6.h @@ -51,7 +51,7 @@ struct ipv6_devconf { __s32 use_optimistic; #endif #ifdef CONFIG_IPV6_MROUTE - __s32 mc_forwarding; + atomic_t mc_forwarding; #endif __s32 disable_ipv6; __s32 drop_unicast_in_l2_multicast; diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c index f4004cf0ff6f..9f311fddfaf9 100644 --- a/net/batman-adv/multicast.c +++ b/net/batman-adv/multicast.c @@ -134,7 +134,7 @@ static u8 batadv_mcast_mla_rtr_flags_softif_get_ipv6(struct net_device *dev) { struct inet6_dev *in6_dev = __in6_dev_get(dev);

- if (in6_dev && in6_dev->cnf.mc_forwarding) + if (in6_dev && atomic_read(&in6_dev->cnf.mc_forwarding)) return BATADV_NO_FLAGS; else return BATADV_MCAST_WANT_NO_RTR6; diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index f908e2fd30b2..4df84013c4e6 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -554,7 +554,7 @@ static int inet6_netconf_fill_devconf(struct sk_buff *skb, int ifindex, #ifdef CONFIG_IPV6_MROUTE if ((all || type == NETCONFA_MC_FORWARDING) && nla_put_s32(skb, NETCONFA_MC_FORWARDING, - devconf->mc_forwarding) < 0) + atomic_read(&devconf->mc_forwarding)) < 0) goto nla_put_failure; #endif if ((all || type == NETCONFA_PROXY_NEIGH) && @@ -5539,7 +5539,7 @@ static inline void ipv6_store_devconf(struct ipv6_devconf *cnf, array[DEVCONF_USE_OPTIMISTIC] = cnf->use_optimistic; #endif #ifdef CONFIG_IPV6_MROUTE - array[DEVCONF_MC_FORWARDING] = cnf->mc_forwarding; + array[DEVCONF_MC_FORWARDING] = atomic_read(&cnf->mc_forwarding); #endif array[DEVCONF_DISABLE_IPV6] = cnf->disable_ipv6; array[DEVCONF_ACCEPT_DAD] = cnf->accept_dad; diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c index 80256717868e..d4b1e2c5aa76 100644 --- a/net/ipv6/ip6_input.c +++ b/net/ipv6/ip6_input.c @@ -508,7 +508,7 @@ int ip6_mc_input(struct sk_buff *skb) /* * IPv6 multicast router mode is now supported ;) */ - if (dev_net(skb->dev)->ipv6.devconf_all->mc_forwarding && + if (atomic_read(&dev_net(skb->dev)->ipv6.devconf_all->mc_forwarding) && !(ipv6_addr_type(&hdr->daddr) & (IPV6_ADDR_LOOPBACK|IPV6_ADDR_LINKLOCAL)) && likely(!(IP6CB(skb)->flags & IP6SKB_FORWARDED))) { diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c index 8a2db926b5eb..e3c884678dbe 100644 --- a/net/ipv6/ip6mr.c +++ b/net/ipv6/ip6mr.c @@ -734,7 +734,7 @@ static int mif6_delete(struct mr_table *mrt, int vifi, int notify,

in6_dev = __in6_dev_get(dev); if (in6_dev) { - in6_dev->cnf.mc_forwarding--; + atomic_dec(&in6_dev->cnf.mc_forwarding); inet6_netconf_notify_devconf(dev_net(dev), RTM_NEWNETCONF, NETCONFA_MC_FORWARDING, dev->ifindex, &in6_dev->cnf); @@ -902,7 +902,7 @@ static int mif6_add(struct net *net, struct mr_table *mrt,

in6_dev = __in6_dev_get(dev); if (in6_dev) { - in6_dev->cnf.mc_forwarding++; + atomic_inc(&in6_dev->cnf.mc_forwarding); inet6_netconf_notify_devconf(dev_net(dev), RTM_NEWNETCONF, NETCONFA_MC_FORWARDING, dev->ifindex, &in6_dev->cnf); @@ -1553,7 +1553,7 @@ static int ip6mr_sk_init(struct mr_table *mrt, struct sock *sk) } else { rcu_assign_pointer(mrt->mroute_sk, sk); sock_set_flag(sk, SOCK_RCU_FREE); - net->ipv6.devconf_all->mc_forwarding++; + atomic_inc(&net->ipv6.devconf_all->mc_forwarding); } write_unlock_bh(&mrt_lock);

@@ -1586,7 +1586,7 @@ int ip6mr_sk_done(struct sock *sk) * so the RCU grace period before sk freeing * is guaranteed by sk_destruct() */ - net->ipv6.devconf_all->mc_forwarding--; + atomic_dec(&net->ipv6.devconf_all->mc_forwarding); write_unlock_bh(&mrt_lock); inet6_netconf_notify_devconf(net, RTM_NEWNETCONF, NETCONFA_MC_FORWARDING,

From: Eric Dumazet edumazet@google.com

[ Upstream commit 9c1be1935fb68b2413796cdc03d019b8cf35ab51 ]

While testing a patch that will follow later ("net: add netns refcount tracker to struct nsproxy") I found that devtmpfs_init() was called before init_net was initialized.

This is a bug, because devtmpfs_setup() calls ksys_unshare(CLONE_NEWNS);

This has the effect of increasing init_net refcount, which will be later overwritten to 1, as part of setup_net(&init_net)

We had too many prior patches [1] trying to work around the root cause.

Really, make sure init_net is in BSS section, and that net_ns_init() is called earlier at boot time.

Note that another patch ("vfs: add netns refcount tracker to struct fs_context") also will need net_ns_init() being called before vfs_caches_init()

As a bonus, this patch saves around 4KB in .data section.

[1]

f8c46cb39079 ("netns: do not call pernet ops for not yet set up init_net namespace") b5082df8019a ("net: Initialise init_net.count to 1") 734b65417b24 ("net: Statically initialize init_net.dev_base_head")

v2: fixed a build error reported by kernel build bots (CONFIG_NET=n)

Signed-off-by: Eric Dumazet edumazet@google.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- include/net/net_namespace.h | 6 ++++++ init/main.c | 2 ++ net/core/dev.c | 3 +-- net/core/net_namespace.c | 17 +++++------------ 4 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h index 5b61c462e534..374cc7b260fc 100644 --- a/include/net/net_namespace.h +++ b/include/net/net_namespace.h @@ -513,4 +513,10 @@ static inline void fnhe_genid_bump(struct net *net) atomic_inc(&net->fnhe_genid); }

+#ifdef CONFIG_NET +void net_ns_init(void); +#else +static inline void net_ns_init(void) {} +#endif + #endif /* __NET_NET_NAMESPACE_H */ diff --git a/init/main.c b/init/main.c index 65fa2e41a9c0..ada50f5a15e4 100644 --- a/init/main.c +++ b/init/main.c @@ -99,6 +99,7 @@ #include <linux/kcsan.h> #include <linux/init_syscalls.h> #include <linux/stackdepot.h> +#include <net/net_namespace.h>

#include <asm/io.h> #include <asm/bugs.h> @@ -1116,6 +1117,7 @@ asmlinkage __visible void __init __no_sanitize_address start_kernel(void) key_init(); security_init(); dbg_late_init(); + net_ns_init(); vfs_caches_init(); pagecache_init(); signals_init(); diff --git a/net/core/dev.c b/net/core/dev.c index 1baab07820f6..91cf709c98b3 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -10732,8 +10732,7 @@ static int __net_init netdev_init(struct net *net) BUILD_BUG_ON(GRO_HASH_BUCKETS > 8 * sizeof_field(struct napi_struct, gro_bitmask));

- if (net != &init_net) - INIT_LIST_HEAD(&net->dev_base_head); + INIT_LIST_HEAD(&net->dev_base_head);

net->dev_name_head = netdev_create_hash(); if (net->dev_name_head == NULL) diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c index a5b5bb99c644..212e65add951 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -44,13 +44,7 @@ EXPORT_SYMBOL_GPL(net_rwsem); static struct key_tag init_net_key_domain = { .usage = REFCOUNT_INIT(1) }; #endif

-struct net init_net = { - .ns.count = REFCOUNT_INIT(1), - .dev_base_head = LIST_HEAD_INIT(init_net.dev_base_head), -#ifdef CONFIG_KEYS - .key_domain = &init_net_key_domain, -#endif -}; +struct net init_net; EXPORT_SYMBOL(init_net);

static bool init_net_initialized; @@ -1084,7 +1078,7 @@ static void rtnl_net_notifyid(struct net *net, int cmd, int id, u32 portid, rtnl_set_sk_err(net, RTNLGRP_NSID, err); }

-static int __init net_ns_init(void) +void __init net_ns_init(void) { struct net_generic *ng;

@@ -1105,6 +1099,9 @@ static int __init net_ns_init(void)

rcu_assign_pointer(init_net.gen, ng);

+#ifdef CONFIG_KEYS + init_net.key_domain = &init_net_key_domain; +#endif down_write(&pernet_ops_rwsem); if (setup_net(&init_net, &init_user_ns)) panic("Could not setup the initial network namespace"); @@ -1119,12 +1116,8 @@ static int __init net_ns_init(void) RTNL_FLAG_DOIT_UNLOCKED); rtnl_register(PF_UNSPEC, RTM_GETNSID, rtnl_net_getid, rtnl_net_dumpid, RTNL_FLAG_DOIT_UNLOCKED); - - return 0; }

-pure_initcall(net_ns_init); - static void free_exit_list(struct pernet_operations *ops, struct list_head *net_exit_list) { ops_pre_exit_list(ops, net_exit_list);

From: Rajneesh Bhardwaj rajneesh.bhardwaj@amd.com

[ Upstream commit 447c7997b62a5115ba4da846dcdee4fc12298a6a ]

Noticed the below warning while running a pytorch workload on vega10 GPUs. Change to trylock to avoid conflicts with already held reservation locks.

[ +0.000003] WARNING: possible recursive locking detected [ +0.000003] 5.13.0-kfd-rajneesh #1030 Not tainted [ +0.000004] -------------------------------------------- [ +0.000002] python/4822 is trying to acquire lock: [ +0.000004] ffff932cd9a259f8 (reservation_ww_class_mutex){+.+.}-{3:3}, at: amdgpu_bo_release_notify+0xc4/0x160 [amdgpu] [ +0.000203] but task is already holding lock: [ +0.000003] ffff932cbb7181f8 (reservation_ww_class_mutex){+.+.}-{3:3}, at: ttm_eu_reserve_buffers+0x270/0x470 [ttm] [ +0.000017] other info that might help us debug this: [ +0.000002] Possible unsafe locking scenario:

[ +0.000003] CPU0 [ +0.000002] ---- [ +0.000002] lock(reservation_ww_class_mutex); [ +0.000004] lock(reservation_ww_class_mutex); [ +0.000003] *** DEADLOCK ***

[ +0.000002] May be due to missing lock nesting notation

[ +0.000003] 7 locks held by python/4822: [ +0.000003] #0: ffff932c4ac028d0 (&process->mutex){+.+.}-{3:3}, at: kfd_ioctl_map_memory_to_gpu+0x10b/0x320 [amdgpu] [ +0.000232] #1: ffff932c55e830a8 (&info->lock#2){+.+.}-{3:3}, at: amdgpu_amdkfd_gpuvm_map_memory_to_gpu+0x64/0xf60 [amdgpu] [ +0.000241] #2: ffff932cc45b5e68 (&(*mem)->lock){+.+.}-{3:3}, at: amdgpu_amdkfd_gpuvm_map_memory_to_gpu+0xdf/0xf60 [amdgpu] [ +0.000236] #3: ffffb2b35606fd28 (reservation_ww_class_acquire){+.+.}-{0:0}, at: amdgpu_amdkfd_gpuvm_map_memory_to_gpu+0x232/0xf60 [amdgpu] [ +0.000235] #4: ffff932cbb7181f8 (reservation_ww_class_mutex){+.+.}-{3:3}, at: ttm_eu_reserve_buffers+0x270/0x470 [ttm] [ +0.000015] #5: ffffffffc045f700 (*(sspp++)){....}-{0:0}, at: drm_dev_enter+0x5/0xa0 [drm] [ +0.000038] #6: ffff932c52da7078 (&vm->eviction_lock){+.+.}-{3:3}, at: amdgpu_vm_bo_update_mapping+0xd5/0x4f0 [amdgpu] [ +0.000195] stack backtrace: [ +0.000003] CPU: 11 PID: 4822 Comm: python Not tainted 5.13.0-kfd-rajneesh #1030 [ +0.000005] Hardware name: GIGABYTE MZ01-CE0-00/MZ01-CE0-00, BIOS F02 08/29/2018 [ +0.000003] Call Trace: [ +0.000003] dump_stack+0x6d/0x89 [ +0.000010] __lock_acquire+0xb93/0x1a90 [ +0.000009] lock_acquire+0x25d/0x2d0 [ +0.000005] ? amdgpu_bo_release_notify+0xc4/0x160 [amdgpu] [ +0.000184] ? lock_is_held_type+0xa2/0x110 [ +0.000006] ? amdgpu_bo_release_notify+0xc4/0x160 [amdgpu] [ +0.000184] __ww_mutex_lock.constprop.17+0xca/0x1060 [ +0.000007] ? amdgpu_bo_release_notify+0xc4/0x160 [amdgpu] [ +0.000183] ? lock_release+0x13f/0x270 [ +0.000005] ? lock_is_held_type+0xa2/0x110 [ +0.000006] ? amdgpu_bo_release_notify+0xc4/0x160 [amdgpu] [ +0.000183] amdgpu_bo_release_notify+0xc4/0x160 [amdgpu] [ +0.000185] ttm_bo_release+0x4c6/0x580 [ttm] [ +0.000010] amdgpu_bo_unref+0x1a/0x30 [amdgpu] [ +0.000183] amdgpu_vm_free_table+0x76/0xa0 [amdgpu] [ +0.000189] amdgpu_vm_free_pts+0xb8/0xf0 [amdgpu] [ +0.000189] amdgpu_vm_update_ptes+0x411/0x770 [amdgpu] [ +0.000191] amdgpu_vm_bo_update_mapping+0x324/0x4f0 [amdgpu] [ +0.000191] amdgpu_vm_bo_update+0x251/0x610 [amdgpu] [ +0.000191] update_gpuvm_pte+0xcc/0x290 [amdgpu] [ +0.000229] ? amdgpu_vm_bo_map+0xd7/0x130 [amdgpu] [ +0.000190] amdgpu_amdkfd_gpuvm_map_memory_to_gpu+0x912/0xf60 [amdgpu] [ +0.000234] kfd_ioctl_map_memory_to_gpu+0x182/0x320 [amdgpu] [ +0.000218] kfd_ioctl+0x2b9/0x600 [amdgpu] [ +0.000216] ? kfd_ioctl_unmap_memory_from_gpu+0x270/0x270 [amdgpu] [ +0.000216] ? lock_release+0x13f/0x270 [ +0.000006] ? __fget_files+0x107/0x1e0 [ +0.000007] __x64_sys_ioctl+0x8b/0xd0 [ +0.000007] do_syscall_64+0x36/0x70 [ +0.000004] entry_SYSCALL_64_after_hwframe+0x44/0xae [ +0.000007] RIP: 0033:0x7fbff90a7317 [ +0.000004] Code: b3 66 90 48 8b 05 71 4b 2d 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 41 4b 2d 00 f7 d8 64 89 01 48 [ +0.000005] RSP: 002b:00007fbe301fe648 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ +0.000006] RAX: ffffffffffffffda RBX: 00007fbcc402d820 RCX: 00007fbff90a7317 [ +0.000003] RDX: 00007fbe301fe690 RSI: 00000000c0184b18 RDI: 0000000000000004 [ +0.000003] RBP: 00007fbe301fe690 R08: 0000000000000000 R09: 00007fbcc402d880 [ +0.000003] R10: 0000000002001000 R11: 0000000000000246 R12: 00000000c0184b18 [ +0.000003] R13: 0000000000000004 R14: 00007fbf689593a0 R15: 00007fbcc402d820

Cc: Christian König christian.koenig@amd.com Cc: Felix Kuehling Felix.Kuehling@amd.com Cc: Alex Deucher Alexander.Deucher@amd.com

Reviewed-by: Christian König christian.koenig@amd.com Reviewed-by: Felix Kuehling Felix.Kuehling@amd.com Signed-off-by: Rajneesh Bhardwaj rajneesh.bhardwaj@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index 5661b82d84d4..dda53fe30975 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -1303,7 +1303,8 @@ void amdgpu_bo_release_notify(struct ttm_buffer_object *bo) !(abo->flags & AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE)) return;

- dma_resv_lock(bo->base.resv, NULL); + if (WARN_ON_ONCE(!dma_resv_trylock(bo->base.resv))) + return;

r = amdgpu_fill_buffer(abo, AMDGPU_POISON, bo->base.resv, &fence); if (!WARN_ON(r)) {

From: Mahesh Rajashekhara mahesh.rajashekhara@microchip.com

[ Upstream commit 3ada501d602abf02353445c03bb3258146445d90 ]

Avoid dropping into shell if the controller is in locked up state.

Driver issues SIS soft reset to bring back the controller to SIS mode while OS boots into kdump mode.

If the controller is in lockup state, SIS soft reset does not work.

Since the controller lockup code has not been cleared, driver considers the firmware is no longer up and running. Driver returns back an error code to OS and the kdump fails.

Link: https://lore.kernel.org/r/164375212337.440833.11955356190354940369.stgit@bru... Reviewed-by: Kevin Barnett kevin.barnett@microchip.com Reviewed-by: Scott Benesh scott.benesh@microchip.com Reviewed-by: Scott Teel scott.teel@microchip.com Signed-off-by: Mahesh Rajashekhara mahesh.rajashekhara@microchip.com Signed-off-by: Don Brace don.brace@microchip.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/smartpqi/smartpqi_init.c | 39 ++++++++++++++++----------- 1 file changed, 23 insertions(+), 16 deletions(-)

diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 2db9f874cc51..f3749e508673 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -7855,6 +7855,21 @@ static int pqi_force_sis_mode(struct pqi_ctrl_info *ctrl_info) return pqi_revert_to_sis_mode(ctrl_info); }

+static void pqi_perform_lockup_action(void) +{ + switch (pqi_lockup_action) { + case PANIC: + panic("FATAL: Smart Family Controller lockup detected"); + break; + case REBOOT: + emergency_restart(); + break; + case NONE: + default: + break; + } +} + static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info) { int rc; @@ -7879,8 +7894,15 @@ static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info) * commands. */ rc = sis_wait_for_ctrl_ready(ctrl_info); - if (rc) + if (rc) { + if (reset_devices) { + dev_err(&ctrl_info->pci_dev->dev, + "kdump init failed with error %d\n", rc); + pqi_lockup_action = REBOOT; + pqi_perform_lockup_action(); + } return rc; + }

/* * Get the controller properties. This allows us to determine @@ -8605,21 +8627,6 @@ static int pqi_ofa_ctrl_restart(struct pqi_ctrl_info *ctrl_info, unsigned int de return pqi_ctrl_init_resume(ctrl_info); }

-static void pqi_perform_lockup_action(void) -{ - switch (pqi_lockup_action) { - case PANIC: - panic("FATAL: Smart Family Controller lockup detected"); - break; - case REBOOT: - emergency_restart(); - break; - case NONE: - default: - break; - } -} - static struct pqi_raid_error_info pqi_ctrl_offline_raid_error_info = { .data_out_result = PQI_DATA_IN_OUT_HARDWARE_ERROR, .status = SAM_STAT_CHECK_CONDITION,

From: Ricardo Koller ricarkol@google.com

[ Upstream commit cc94d47ce16d4147d546e47c8248e8bd12ba5fe5 ]

The val argument in gicv3_access_reg can have any value when used for a read, not necessarily 0. Fix the assert by checking val only for writes.

Signed-off-by: Ricardo Koller ricarkol@google.com Reported-by: Reiji Watanabe reijiw@google.com Cc: Andrew Jones drjones@redhat.com Reviewed-by: Andrew Jones drjones@redhat.com Signed-off-by: Marc Zyngier maz@kernel.org Link: https://lore.kernel.org/r/20220127030858.3269036-2-ricarkol@google.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/kvm/lib/aarch64/gic_v3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/kvm/lib/aarch64/gic_v3.c b/tools/testing/selftests/kvm/lib/aarch64/gic_v3.c index 00f613c0583c..e4945fe66620 100644 --- a/tools/testing/selftests/kvm/lib/aarch64/gic_v3.c +++ b/tools/testing/selftests/kvm/lib/aarch64/gic_v3.c @@ -159,7 +159,7 @@ static void gicv3_access_reg(uint32_t intid, uint64_t offset, uint32_t cpu_or_dist;

GUEST_ASSERT(bits_per_field <= reg_bits); - GUEST_ASSERT(*val < (1U << bits_per_field)); + GUEST_ASSERT(!write || *val < (1U << bits_per_field)); /* Some registers like IROUTER are 64 bit long. Those are currently not * supported by readl nor writel, so just asserting here until then. */

From: Ricardo Koller ricarkol@google.com

[ Upstream commit 5b7898648f02083012900e48d063e51ccbdad165 ]

kvm_set_gsi_routing_irqchip_check(expect_failure=true) is used to check the error code returned by the kernel when trying to setup an invalid gsi routing table. The ioctl fails if "pin >= KVM_IRQCHIP_NUM_PINS", so kvm_set_gsi_routing_irqchip_check() should test the error only when "intid >= KVM_IRQCHIP_NUM_PINS+32". The issue is that the test check is "intid >= KVM_IRQCHIP_NUM_PINS", so for a case like "intid = KVM_IRQCHIP_NUM_PINS" the test wrongly assumes that the kernel will return an error. Fix this by using the right check.

Signed-off-by: Ricardo Koller ricarkol@google.com Reported-by: Reiji Watanabe reijiw@google.com Cc: Andrew Jones drjones@redhat.com Signed-off-by: Marc Zyngier maz@kernel.org Link: https://lore.kernel.org/r/20220127030858.3269036-4-ricarkol@google.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/kvm/aarch64/vgic_irq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/kvm/aarch64/vgic_irq.c b/tools/testing/selftests/kvm/aarch64/vgic_irq.c index 7f3afee5cc00..48e43e24d240 100644 --- a/tools/testing/selftests/kvm/aarch64/vgic_irq.c +++ b/tools/testing/selftests/kvm/aarch64/vgic_irq.c @@ -573,8 +573,8 @@ static void kvm_set_gsi_routing_irqchip_check(struct kvm_vm *vm, kvm_gsi_routing_write(vm, routing); } else { ret = _kvm_gsi_routing_write(vm, routing); - /* The kernel only checks for KVM_IRQCHIP_NUM_PINS. */ - if (intid >= KVM_IRQCHIP_NUM_PINS) + /* The kernel only checks e->irqchip.pin >= KVM_IRQCHIP_NUM_PINS */ + if (((uint64_t)intid + num - 1 - MIN_SPI) >= KVM_IRQCHIP_NUM_PINS) TEST_ASSERT(ret != 0 && errno == EINVAL, "Bad intid %u did not cause KVM_SET_GSI_ROUTING " "error: rc: %i errno: %i", intid, ret, errno);

From: Ricardo Koller ricarkol@google.com

[ Upstream commit b53de63a89244c196d8a2ea76b6754e3fdb4b626 ]

vgic_poke_irq() checks that the attr argument passed to the vgic device ioctl is sane. Make this check tighter by moving it to after the last attr update.

Signed-off-by: Ricardo Koller ricarkol@google.com Reported-by: Reiji Watanabe reijiw@google.com Cc: Andrew Jones drjones@redhat.com Reviewed-by: Andrew Jones drjones@redhat.com Signed-off-by: Marc Zyngier maz@kernel.org Link: https://lore.kernel.org/r/20220127030858.3269036-6-ricarkol@google.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/testing/selftests/kvm/lib/aarch64/vgic.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/kvm/lib/aarch64/vgic.c b/tools/testing/selftests/kvm/lib/aarch64/vgic.c index 7c876ccf9294..5d45046c1b80 100644 --- a/tools/testing/selftests/kvm/lib/aarch64/vgic.c +++ b/tools/testing/selftests/kvm/lib/aarch64/vgic.c @@ -140,9 +140,6 @@ static void vgic_poke_irq(int gic_fd, uint32_t intid, uint64_t val; bool intid_is_private = INTID_IS_SGI(intid) || INTID_IS_PPI(intid);

- /* Check that the addr part of the attr is within 32 bits. */ - assert(attr <= KVM_DEV_ARM_VGIC_OFFSET_MASK); - uint32_t group = intid_is_private ? KVM_DEV_ARM_VGIC_GRP_REDIST_REGS : KVM_DEV_ARM_VGIC_GRP_DIST_REGS;

@@ -152,6 +149,9 @@ static void vgic_poke_irq(int gic_fd, uint32_t intid, attr += SZ_64K; }

+ /* Check that the addr part of the attr is within 32 bits. */ + assert((attr & ~KVM_DEV_ARM_VGIC_OFFSET_MASK) == 0); + /* * All calls will succeed, even with invalid intid's, as long as the * addr part of the attr is within 32 bits (checked above). An invalid

From: Neal Liu neal_liu@aspeedtech.com

[ Upstream commit c3c9cee592828528fd228b01d312c7526c584a42 ]

Enable Aspeed quirks in commit 7f2d73788d90 ("usb: ehci: handshake CMD_RUN instead of STS_HALT") to support Aspeed ehci-pci device.

Acked-by: Alan Stern stern@rowland.harvard.edu Signed-off-by: Neal Liu neal_liu@aspeedtech.com Link: https://lore.kernel.org/r/20220208101657.76459-1-neal_liu@aspeedtech.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/host/ehci-pci.c | 9 +++++++++ 1 file changed, 9 insertions(+)

diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index e87cf3a00fa4..638f03b89739 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -21,6 +21,9 @@ static const char hcd_name[] = "ehci-pci"; /* defined here to avoid adding to pci_ids.h for single instance use */ #define PCI_DEVICE_ID_INTEL_CE4100_USB 0x2e70

+#define PCI_VENDOR_ID_ASPEED 0x1a03 +#define PCI_DEVICE_ID_ASPEED_EHCI 0x2603 + /*-------------------------------------------------------------------------*/ #define PCI_DEVICE_ID_INTEL_QUARK_X1000_SOC 0x0939 static inline bool is_intel_quark_x1000(struct pci_dev *pdev) @@ -222,6 +225,12 @@ static int ehci_pci_setup(struct usb_hcd *hcd) ehci->has_synopsys_hc_bug = 1; } break; + case PCI_VENDOR_ID_ASPEED: + if (pdev->device == PCI_DEVICE_ID_ASPEED_EHCI) { + ehci_info(ehci, "applying Aspeed HC workaround\n"); + ehci->is_aspeed = 1; + } + break; }

/* optional debug port, normally in the first BAR */

From: Ilya Leoshkevich iii@linux.ibm.com

[ Upstream commit f07f1503469b11b739892d50c836992ffbe026ee ]

powerpc does not select ARCH_HAS_SYSCALL_WRAPPER, so its syscall handlers take "unpacked" syscall arguments. Indicate this to libbpf using PT_REGS_SYSCALL_REGS macro.

Reported-by: Heiko Carstens hca@linux.ibm.com Signed-off-by: Ilya Leoshkevich iii@linux.ibm.com Signed-off-by: Andrii Nakryiko andrii@kernel.org Tested-by: Naveen N. Rao naveen.n.rao@linux.vnet.ibm.com Link: https://lore.kernel.org/bpf/20220209021745.2215452-5-iii@linux.ibm.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/lib/bpf/bpf_tracing.h | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h index 90f56b0f585f..d40b87c0e4b9 100644 --- a/tools/lib/bpf/bpf_tracing.h +++ b/tools/lib/bpf/bpf_tracing.h @@ -178,6 +178,8 @@ #define __PT_RC_REG gpr[3] #define __PT_SP_REG sp #define __PT_IP_REG nip +/* powerpc does not select ARCH_HAS_SYSCALL_WRAPPER. */ +#define PT_REGS_SYSCALL_REGS(ctx) ctx

#elif defined(bpf_target_sparc)

From: Ilya Leoshkevich iii@linux.ibm.com

[ Upstream commit 1f22a6f9f9a0f50218a11a0554709fd34a821fa3 ]

On s390, the first syscall argument should be accessed via orig_gpr2 (see arch/s390/include/asm/syscall.h). Currently gpr[2] is used instead, leading to bpf_syscall_macro test failure.

orig_gpr2 cannot be added to user_pt_regs, since its layout is a part of the ABI. Therefore provide access to it only through PT_REGS_PARM1_CORE_SYSCALL() by using a struct pt_regs flavor.

Reported-by: Andrii Nakryiko andrii@kernel.org Signed-off-by: Ilya Leoshkevich iii@linux.ibm.com Signed-off-by: Andrii Nakryiko andrii@kernel.org Link: https://lore.kernel.org/bpf/20220209021745.2215452-11-iii@linux.ibm.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/lib/bpf/bpf_tracing.h | 6 ++++++ 1 file changed, 6 insertions(+)

diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h index ad62c17919cf..92bf90e716ea 100644 --- a/tools/lib/bpf/bpf_tracing.h +++ b/tools/lib/bpf/bpf_tracing.h @@ -112,6 +112,10 @@

#elif defined(bpf_target_s390)

+struct pt_regs___s390 { + unsigned long orig_gpr2; +}; + /* s390 provides user_pt_regs instead of struct pt_regs to userspace */ #define __PT_REGS_CAST(x) ((const user_pt_regs *)(x)) #define __PT_PARM1_REG gprs[2] @@ -124,6 +128,8 @@ #define __PT_RC_REG gprs[2] #define __PT_SP_REG gprs[15] #define __PT_IP_REG psw.addr +#define PT_REGS_PARM1_SYSCALL(x) ({ _Pragma("GCC error "use PT_REGS_PARM1_CORE_SYSCALL() instead""); 0l; }) +#define PT_REGS_PARM1_CORE_SYSCALL(x) BPF_CORE_READ((const struct pt_regs___s390 *)(x), orig_gpr2)

#elif defined(bpf_target_arm)

From: Sebastian Andrzej Siewior bigeasy@linutronix.de

[ Upstream commit 4f9bf2a2f5aacf988e6d5e56b961ba45c5a25248 ]

Commit 9652dc2eb9e40 ("tcp: relax listening_hash operations")

removed the need to disable bottom half while acquiring listening_hash.lock. There are still two callers left which disable bottom half before the lock is acquired.

On PREEMPT_RT the softirqs are preemptible and local_bh_disable() acts as a lock to ensure that resources, that are protected by disabling bottom halves, remain protected. This leads to a circular locking dependency if the lock acquired with disabled bottom halves is also acquired with enabled bottom halves followed by disabling bottom halves. This is the reverse locking order. It has been observed with inet_listen_hashbucket::lock:

local_bh_disable() + spin_lock(&ilb->lock): inet_listen() inet_csk_listen_start() sk->sk_prot->hash() := inet_hash() local_bh_disable() __inet_hash() spin_lock(&ilb->lock); acquire(&ilb->lock);

Reverse order: spin_lock(&ilb2->lock) + local_bh_disable(): tcp_seq_next() listening_get_next() spin_lock(&ilb2->lock); acquire(&ilb2->lock);

tcp4_seq_show() get_tcp4_sock() sock_i_ino() read_lock_bh(&sk->sk_callback_lock); acquire(softirq_ctrl) // <---- whoops acquire(&sk->sk_callback_lock)

Drop local_bh_disable() around __inet_hash() which acquires listening_hash->lock. Split inet_unhash() and acquire the listen_hashbucket lock without disabling bottom halves; the inet_ehash lock with disabled bottom halves.

Reported-by: Mike Galbraith efault@gmx.de Signed-off-by: Sebastian Andrzej Siewior bigeasy@linutronix.de Link: https://lkml.kernel.org/r/12d6f9879a97cd56c09fb53dee343cbb14f7f1f7.camel@gmx... Link: https://lkml.kernel.org/r/X9CheYjuXWc75Spa@hirez.programming.kicks-ass.net Link: https://lore.kernel.org/r/YgQOebeZ10eNx1W6@linutronix.de Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/ipv4/inet_hashtables.c | 53 ++++++++++++++++++++++--------------- net/ipv6/inet6_hashtables.c | 5 +--- 2 files changed, 33 insertions(+), 25 deletions(-)

diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c index 30ab717ff1b8..17440840a791 100644 --- a/net/ipv4/inet_hashtables.c +++ b/net/ipv4/inet_hashtables.c @@ -637,7 +637,9 @@ int __inet_hash(struct sock *sk, struct sock *osk) int err = 0;

if (sk->sk_state != TCP_LISTEN) { + local_bh_disable(); inet_ehash_nolisten(sk, osk, NULL); + local_bh_enable(); return 0; } WARN_ON(!sk_unhashed(sk)); @@ -669,45 +671,54 @@ int inet_hash(struct sock *sk) { int err = 0;

- if (sk->sk_state != TCP_CLOSE) { - local_bh_disable(); + if (sk->sk_state != TCP_CLOSE) err = __inet_hash(sk, NULL); - local_bh_enable(); - }

return err; } EXPORT_SYMBOL_GPL(inet_hash);

-void inet_unhash(struct sock *sk) +static void __inet_unhash(struct sock *sk, struct inet_listen_hashbucket *ilb) { - struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo; - struct inet_listen_hashbucket *ilb = NULL; - spinlock_t *lock; - if (sk_unhashed(sk)) return;

- if (sk->sk_state == TCP_LISTEN) { - ilb = &hashinfo->listening_hash[inet_sk_listen_hashfn(sk)]; - lock = &ilb->lock; - } else { - lock = inet_ehash_lockp(hashinfo, sk->sk_hash); - } - spin_lock_bh(lock); - if (sk_unhashed(sk)) - goto unlock; - if (rcu_access_pointer(sk->sk_reuseport_cb)) reuseport_stop_listen_sock(sk); if (ilb) { + struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo; + inet_unhash2(hashinfo, sk); ilb->count--; } __sk_nulls_del_node_init_rcu(sk); sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1); -unlock: - spin_unlock_bh(lock); +} + +void inet_unhash(struct sock *sk) +{ + struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo; + + if (sk_unhashed(sk)) + return; + + if (sk->sk_state == TCP_LISTEN) { + struct inet_listen_hashbucket *ilb; + + ilb = &hashinfo->listening_hash[inet_sk_listen_hashfn(sk)]; + /* Don't disable bottom halves while acquiring the lock to + * avoid circular locking dependency on PREEMPT_RT. + */ + spin_lock(&ilb->lock); + __inet_unhash(sk, ilb); + spin_unlock(&ilb->lock); + } else { + spinlock_t *lock = inet_ehash_lockp(hashinfo, sk->sk_hash); + + spin_lock_bh(lock); + __inet_unhash(sk, NULL); + spin_unlock_bh(lock); + } } EXPORT_SYMBOL_GPL(inet_unhash);

diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c index 4514444e96c8..4740afecf7c6 100644 --- a/net/ipv6/inet6_hashtables.c +++ b/net/ipv6/inet6_hashtables.c @@ -333,11 +333,8 @@ int inet6_hash(struct sock *sk) { int err = 0;

- if (sk->sk_state != TCP_CLOSE) { - local_bh_disable(); + if (sk->sk_state != TCP_CLOSE) err = __inet_hash(sk, NULL); - local_bh_enable(); - }

return err; }

From: Sreekanth Reddy sreekanth.reddy@broadcom.com

[ Upstream commit 580e6742205efe6b0bfa5a6a6079f509d99168e0 ]

During controller reset, the driver tries to flush all the pending firmware event works from worker queue that are queued prior to the reset. However, if any work is waiting for device addition/removal operation to be completed at the SML, then a deadlock is observed. This is due to the controller reset waiting for the device addition/removal to be completed and the device/addition removal is waiting for the controller reset to be completed.

To limit this deadlock, continue with the controller reset handling without canceling the work which is waiting for device addition/removal operation to complete at SML.

Link: https://lore.kernel.org/r/20220210095817.22828-2-sreekanth.reddy@broadcom.co... Signed-off-by: Sreekanth Reddy sreekanth.reddy@broadcom.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/mpi3mr/mpi3mr.h | 4 ++ drivers/scsi/mpi3mr/mpi3mr_fw.c | 2 +- drivers/scsi/mpi3mr/mpi3mr_os.c | 106 ++++++++++++++++++++++++++------ 3 files changed, 91 insertions(+), 21 deletions(-)

diff --git a/drivers/scsi/mpi3mr/mpi3mr.h b/drivers/scsi/mpi3mr/mpi3mr.h index fc4eaf6d1e47..d892ade421bf 100644 --- a/drivers/scsi/mpi3mr/mpi3mr.h +++ b/drivers/scsi/mpi3mr/mpi3mr.h @@ -866,6 +866,8 @@ struct mpi3mr_ioc { * @send_ack: Event acknowledgment required or not * @process_evt: Bottomhalf processing required or not * @evt_ctx: Event context to send in Ack + * @pending_at_sml: waiting for device add/remove API to complete + * @discard: discard this event * @ref_count: kref count * @event_data: Actual MPI3 event data */ @@ -877,6 +879,8 @@ struct mpi3mr_fwevt { bool send_ack; bool process_evt; u32 evt_ctx; + bool pending_at_sml; + bool discard; struct kref ref_count; char event_data[0] __aligned(4); }; diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c index 15bdc21ead66..7193b983ee3b 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_fw.c +++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c @@ -4353,8 +4353,8 @@ int mpi3mr_soft_reset_handler(struct mpi3mr_ioc *mrioc, memset(mrioc->devrem_bitmap, 0, mrioc->devrem_bitmap_sz); memset(mrioc->removepend_bitmap, 0, mrioc->dev_handle_bitmap_sz); memset(mrioc->evtack_cmds_bitmap, 0, mrioc->evtack_cmds_bitmap_sz); - mpi3mr_cleanup_fwevt_list(mrioc); mpi3mr_flush_host_io(mrioc); + mpi3mr_cleanup_fwevt_list(mrioc); mpi3mr_invalidate_devhandles(mrioc); if (mrioc->prepare_for_reset) { mrioc->prepare_for_reset = 0; diff --git a/drivers/scsi/mpi3mr/mpi3mr_os.c b/drivers/scsi/mpi3mr/mpi3mr_os.c index 284117da9086..d205354be63a 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_os.c +++ b/drivers/scsi/mpi3mr/mpi3mr_os.c @@ -285,6 +285,35 @@ static struct mpi3mr_fwevt *mpi3mr_dequeue_fwevt( return fwevt; }

+/** + * mpi3mr_cancel_work - cancel firmware event + * @fwevt: fwevt object which needs to be canceled + * + * Return: Nothing. + */ +static void mpi3mr_cancel_work(struct mpi3mr_fwevt *fwevt) +{ + /* + * Wait on the fwevt to complete. If this returns 1, then + * the event was never executed. + * + * If it did execute, we wait for it to finish, and the put will + * happen from mpi3mr_process_fwevt() + */ + if (cancel_work_sync(&fwevt->work)) { + /* + * Put fwevt reference count after + * dequeuing it from worker queue + */ + mpi3mr_fwevt_put(fwevt); + /* + * Put fwevt reference count to neutralize + * kref_init increment + */ + mpi3mr_fwevt_put(fwevt); + } +} + /** * mpi3mr_cleanup_fwevt_list - Cleanup firmware event list * @mrioc: Adapter instance reference @@ -302,28 +331,25 @@ void mpi3mr_cleanup_fwevt_list(struct mpi3mr_ioc *mrioc) !mrioc->fwevt_worker_thread) return;

- while ((fwevt = mpi3mr_dequeue_fwevt(mrioc)) || - (fwevt = mrioc->current_event)) { + while ((fwevt = mpi3mr_dequeue_fwevt(mrioc))) + mpi3mr_cancel_work(fwevt); + + if (mrioc->current_event) { + fwevt = mrioc->current_event; /* - * Wait on the fwevt to complete. If this returns 1, then - * the event was never executed, and we need a put for the - * reference the work had on the fwevt. - * - * If it did execute, we wait for it to finish, and the put will - * happen from mpi3mr_process_fwevt() + * Don't call cancel_work_sync() API for the + * fwevt work if the controller reset is + * get called as part of processing the + * same fwevt work (or) when worker thread is + * waiting for device add/remove APIs to complete. + * Otherwise we will see deadlock. */ - if (cancel_work_sync(&fwevt->work)) { - /* - * Put fwevt reference count after - * dequeuing it from worker queue - */ - mpi3mr_fwevt_put(fwevt); - /* - * Put fwevt reference count to neutralize - * kref_init increment - */ - mpi3mr_fwevt_put(fwevt); + if (current_work() == &fwevt->work || fwevt->pending_at_sml) { + fwevt->discard = 1; + return; } + + mpi3mr_cancel_work(fwevt); } }

@@ -690,6 +716,24 @@ static struct mpi3mr_tgt_dev *__mpi3mr_get_tgtdev_from_tgtpriv( return tgtdev; }

+/** + * mpi3mr_print_device_event_notice - print notice related to post processing of + * device event after controller reset. + * + * @mrioc: Adapter instance reference + * @device_add: true for device add event and false for device removal event + * + * Return: None. + */ +static void mpi3mr_print_device_event_notice(struct mpi3mr_ioc *mrioc, + bool device_add) +{ + ioc_notice(mrioc, "Device %s was in progress before the reset and\n", + (device_add ? "addition" : "removal")); + ioc_notice(mrioc, "completed after reset, verify whether the exposed devices\n"); + ioc_notice(mrioc, "are matched with attached devices for correctness\n"); +} + /** * mpi3mr_remove_tgtdev_from_host - Remove dev from upper layers * @mrioc: Adapter instance reference @@ -714,8 +758,17 @@ static void mpi3mr_remove_tgtdev_from_host(struct mpi3mr_ioc *mrioc, }

if (tgtdev->starget) { + if (mrioc->current_event) + mrioc->current_event->pending_at_sml = 1; scsi_remove_target(&tgtdev->starget->dev); tgtdev->host_exposed = 0; + if (mrioc->current_event) { + mrioc->current_event->pending_at_sml = 0; + if (mrioc->current_event->discard) { + mpi3mr_print_device_event_notice(mrioc, false); + return; + } + } } ioc_info(mrioc, "%s :Removed handle(0x%04x), wwid(0x%016llx)\n", __func__, tgtdev->dev_handle, (unsigned long long)tgtdev->wwid); @@ -749,11 +802,20 @@ static int mpi3mr_report_tgtdev_to_host(struct mpi3mr_ioc *mrioc, } if (!tgtdev->host_exposed && !mrioc->reset_in_progress) { tgtdev->host_exposed = 1; + if (mrioc->current_event) + mrioc->current_event->pending_at_sml = 1; scsi_scan_target(&mrioc->shost->shost_gendev, 0, tgtdev->perst_id, SCAN_WILD_CARD, SCSI_SCAN_INITIAL); if (!tgtdev->starget) tgtdev->host_exposed = 0; + if (mrioc->current_event) { + mrioc->current_event->pending_at_sml = 0; + if (mrioc->current_event->discard) { + mpi3mr_print_device_event_notice(mrioc, true); + goto out; + } + } } out: if (tgtdev) @@ -1193,6 +1255,8 @@ static void mpi3mr_sastopochg_evt_bh(struct mpi3mr_ioc *mrioc, mpi3mr_sastopochg_evt_debug(mrioc, event_data);

for (i = 0; i < event_data->num_entries; i++) { + if (fwevt->discard) + return; handle = le16_to_cpu(event_data->phy_entry[i].attached_dev_handle); if (!handle) continue; @@ -1324,6 +1388,8 @@ static void mpi3mr_pcietopochg_evt_bh(struct mpi3mr_ioc *mrioc, mpi3mr_pcietopochg_evt_debug(mrioc, event_data);

for (i = 0; i < event_data->num_entries; i++) { + if (fwevt->discard) + return; handle = le16_to_cpu(event_data->port_entry[i].attached_dev_handle); if (!handle) @@ -1362,8 +1428,8 @@ static void mpi3mr_pcietopochg_evt_bh(struct mpi3mr_ioc *mrioc, static void mpi3mr_fwevt_bh(struct mpi3mr_ioc *mrioc, struct mpi3mr_fwevt *fwevt) { - mrioc->current_event = fwevt; mpi3mr_fwevt_del_from_list(mrioc, fwevt); + mrioc->current_event = fwevt;

if (mrioc->stop_drv_processing) goto out;

From: Sreekanth Reddy sreekanth.reddy@broadcom.com

[ Upstream commit d44b5fefb22e139408ae12b864da1ecb9ad9d1d2 ]

Fix memory leaks related to operational reply queue's memory segments which are not getting freed while unloading the driver.

Link: https://lore.kernel.org/r/20220210095817.22828-9-sreekanth.reddy@broadcom.co... Signed-off-by: Sreekanth Reddy sreekanth.reddy@broadcom.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/mpi3mr/mpi3mr_fw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/mpi3mr/mpi3mr_fw.c b/drivers/scsi/mpi3mr/mpi3mr_fw.c index 7193b983ee3b..e44868230197 100644 --- a/drivers/scsi/mpi3mr/mpi3mr_fw.c +++ b/drivers/scsi/mpi3mr/mpi3mr_fw.c @@ -1520,7 +1520,7 @@ static void mpi3mr_free_op_req_q_segments(struct mpi3mr_ioc *mrioc, u16 q_idx) MPI3MR_MAX_SEG_LIST_SIZE, mrioc->req_qinfo[q_idx].q_segment_list, mrioc->req_qinfo[q_idx].q_segment_list_dma); - mrioc->op_reply_qinfo[q_idx].q_segment_list = NULL; + mrioc->req_qinfo[q_idx].q_segment_list = NULL; } } else size = mrioc->req_qinfo[q_idx].segment_qd *

From: Hans de Goede hdegoede@redhat.com

[ Upstream commit 5ac121b81b4051e7fc83d5b3456a5e499d5bd147 ]

The AXP288's recommended and factory default Vhold value (minimum input voltage below which the input current draw will be reduced) is 4.4V. This lines up with other charger IC's such as the TI bq2419x/bq2429x series which use 4.36V or 4.44V.

For some reason some BIOS-es initialize Vhold to 4.6V or even 4.7V which combined with the typical voltage drop over typically low wire gauge micro-USB cables leads to the input-current getting capped below 1A (with a 2A capable dedicated charger) based on Vhold.

This leads to slow charging, or even to the device slowly discharging if the device is in heavy use.

As the Linux AXP288 drivers use the builtin BC1.2 charger detection and send the input-current-limit according to the detected charger there really is no reason not to use the recommended 4.4V Vhold.

Set Vhold to 4.4V to fix the slow charging issue on various devices.

There is one exception, the special-case of the HP X2 2-in-1s which combine this BC1.2 capable PMIC with a Type-C port and a 5V/3A factory provided charger with a Type-C plug which does not do BC1.2. These have their input-current-limit hardcoded to 3A (like under Windows) and use a higher Vhold on purpose to limit the current when used with other chargers. To avoid touching Vhold on these HP X2 laptops the code setting Vhold is added to an else branch of the if checking for these models.

Note this also fixes the sofar unused VBUS_ISPOUT_VHOLD_SET_MASK define, which was wrong.

Signed-off-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Sebastian Reichel sebastian.reichel@collabora.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/power/supply/axp288_charger.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/power/supply/axp288_charger.c b/drivers/power/supply/axp288_charger.c index ec41f6cd3f93..c498e62ab4e2 100644 --- a/drivers/power/supply/axp288_charger.c +++ b/drivers/power/supply/axp288_charger.c @@ -42,11 +42,11 @@ #define VBUS_ISPOUT_CUR_LIM_1500MA 0x1 /* 1500mA */ #define VBUS_ISPOUT_CUR_LIM_2000MA 0x2 /* 2000mA */ #define VBUS_ISPOUT_CUR_NO_LIM 0x3 /* 2500mA */ -#define VBUS_ISPOUT_VHOLD_SET_MASK 0x31 +#define VBUS_ISPOUT_VHOLD_SET_MASK 0x38 #define VBUS_ISPOUT_VHOLD_SET_BIT_POS 0x3 #define VBUS_ISPOUT_VHOLD_SET_OFFSET 4000 /* 4000mV */ #define VBUS_ISPOUT_VHOLD_SET_LSB_RES 100 /* 100mV */ -#define VBUS_ISPOUT_VHOLD_SET_4300MV 0x3 /* 4300mV */ +#define VBUS_ISPOUT_VHOLD_SET_4400MV 0x4 /* 4400mV */ #define VBUS_ISPOUT_VBUS_PATH_DIS BIT(7)

#define CHRG_CCCV_CC_MASK 0xf /* 4 bits */ @@ -769,6 +769,16 @@ static int charger_init_hw_regs(struct axp288_chrg_info *info) ret = axp288_charger_vbus_path_select(info, true); if (ret < 0) return ret; + } else { + /* Set Vhold to the factory default / recommended 4.4V */ + val = VBUS_ISPOUT_VHOLD_SET_4400MV << VBUS_ISPOUT_VHOLD_SET_BIT_POS; + ret = regmap_update_bits(info->regmap, AXP20X_VBUS_IPSOUT_MGMT, + VBUS_ISPOUT_VHOLD_SET_MASK, val); + if (ret < 0) { + dev_err(&info->pdev->dev, "register(%x) write error(%d)\n", + AXP20X_VBUS_IPSOUT_MGMT, ret); + return ret; + } }

/* Read current charge voltage and current limit */

From: Kevin Tang kevin3.tang@gmail.com

[ Upstream commit 73792e6e66be1225837cc1a40f1e39b1d077751c ]

platform_get_resource() may fail and return NULL, so check it's value before using it.

Reported-by: Zou Wei zou_wei@huawei.com Signed-off-by: Kevin Tang kevin3.tang@gmail.com Reviewed-by: Javier Martinez Canillas javierm@redhat.com Acked-by: Thomas Zimmermann tzimmermann@suse.de Link: https://lore.kernel.org/all/20220117084156.9338-1-kevin3.tang@gmail.com

v1 -> v2: - new patch

Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/sprd/sprd_dpu.c | 5 +++++ drivers/gpu/drm/sprd/sprd_dsi.c | 5 +++++ 2 files changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/sprd/sprd_dpu.c b/drivers/gpu/drm/sprd/sprd_dpu.c index 06a3414ee43a..1637203ea103 100644 --- a/drivers/gpu/drm/sprd/sprd_dpu.c +++ b/drivers/gpu/drm/sprd/sprd_dpu.c @@ -790,6 +790,11 @@ static int sprd_dpu_context_init(struct sprd_dpu *dpu, int ret;

res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(dev, "failed to get I/O resource\n"); + return -EINVAL; + } + ctx->base = devm_ioremap(dev, res->start, resource_size(res)); if (!ctx->base) { dev_err(dev, "failed to map dpu registers\n"); diff --git a/drivers/gpu/drm/sprd/sprd_dsi.c b/drivers/gpu/drm/sprd/sprd_dsi.c index 911b3cddc264..12b67a5d5923 100644 --- a/drivers/gpu/drm/sprd/sprd_dsi.c +++ b/drivers/gpu/drm/sprd/sprd_dsi.c @@ -907,6 +907,11 @@ static int sprd_dsi_context_init(struct sprd_dsi *dsi, struct resource *res;

res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(dev, "failed to get I/O resource\n"); + return -EINVAL; + } + ctx->base = devm_ioremap(dev, res->start, resource_size(res)); if (!ctx->base) { drm_err(dsi->drm, "failed to map dsi host registers\n");

From: Maxim Mikityanskiy maximmi@nvidia.com

[ Upstream commit d08c6e2a4d0308a7922d7ef3b1b3af45d4096aad ]

Normally, the queues are disabled when the channels are deactivated, and enabled when the channels are activated. However, on register, the channels are not active, but the queues are enabled by default. This change fixes it, preventing mlx5e_xmit from running when the channels are deactivated in the beginning.

Signed-off-by: Maxim Mikityanskiy maximmi@nvidia.com Reviewed-by: Tariq Toukan tariqt@nvidia.com Signed-off-by: Saeed Mahameed saeedm@nvidia.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 3667f5ef5990..169e3524bb1c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -5345,6 +5345,7 @@ mlx5e_create_netdev(struct mlx5_core_dev *mdev, const struct mlx5e_profile *prof }

netif_carrier_off(netdev); + netif_tx_disable(netdev); dev_net_set(netdev, mlx5_core_net(mdev));

return netdev;

From: José Expósito jose.exposito89@gmail.com

[ Upstream commit cbfcfbfc384890a062a5d0cc4792df094a6cc7a8 ]

Like the Apple Magic Keyboard 2015, when connected over USB, the 2021 version with fingerprint reader registers 2 different interfaces. One of them is used to report the battery level.

However, unlike when connected over Bluetooth, the battery level is not reported automatically and it is required to fetch it manually.

Add the APPLE_RDESC_BATTERY quirk to fix the battery report descriptor and manually fetch the battery level.

Tested with the ANSI variant of the keyboard with and without numpad.

Signed-off-by: José Expósito jose.exposito89@gmail.com Signed-off-by: Jiri Kosina jkosina@suse.cz Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/hid/hid-apple.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c index 18de4ccb0fb2..590376d776a1 100644 --- a/drivers/hid/hid-apple.c +++ b/drivers/hid/hid-apple.c @@ -752,11 +752,11 @@ static const struct hid_device_id apple_devices[] = { { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_2021), .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_FINGERPRINT_2021), - .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK }, + .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK | APPLE_RDESC_BATTERY }, { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_FINGERPRINT_2021), .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2021), - .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK }, + .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK | APPLE_RDESC_BATTERY }, { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_NUMPAD_2021), .driver_data = APPLE_HAS_FN | APPLE_ISO_TILDE_QUIRK },

From: Ilan Peer ilan.peer@intel.com

[ Upstream commit d8d4dd26b9e0469baf5017f0544d852fd4e3fb6d ]

Currently, fragmented EBS was set for a channel only if the 'hb_type' was set to fragmented or balanced scan. However, 'hb_type' is set only in case of CDB, and thus fragmented EBS is never set for a channel for non-CDB devices. Fix it.

Signed-off-by: Ilan Peer ilan.peer@intel.com Signed-off-by: Luca Coelho luciano.coelho@intel.com Link: https://lore.kernel.org/r/iwlwifi.20220204122220.a6165ac9b9d5.I654eafa62fd64... Signed-off-by: Luca Coelho luciano.coelho@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/intel/iwlwifi/mvm/scan.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c index 5f92a09db374..4cd507cb412d 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c @@ -1893,7 +1893,10 @@ static u8 iwl_mvm_scan_umac_chan_flags_v2(struct iwl_mvm *mvm, IWL_SCAN_CHANNEL_FLAG_CACHE_ADD;

/* set fragmented ebs for fragmented scan on HB channels */ - if (iwl_mvm_is_scan_fragmented(params->hb_type)) + if ((!iwl_mvm_is_cdb_supported(mvm) && + iwl_mvm_is_scan_fragmented(params->type)) || + (iwl_mvm_is_cdb_supported(mvm) && + iwl_mvm_is_scan_fragmented(params->hb_type))) flags |= IWL_SCAN_CHANNEL_FLAG_EBS_FRAG;

return flags;

From: Luca Coelho luciano.coelho@intel.com

[ Upstream commit 3009c797c4b3840495e8f48d8d07f48d2ddfed80 ]

There was a small copy and paste mistake in the doc declaration of iwl_fw_ini_addr_val. Fix it.

Signed-off-by: Luca Coelho luciano.coelho@intel.com Link: https://lore.kernel.org/r/iwlwifi.20220205112029.aeec71c397b3.I0ba3234419eb8... Signed-off-by: Luca Coelho luciano.coelho@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h b/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h index 456b7eaac570..061fe6cc6cf5 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ /* - * Copyright (C) 2018-2021 Intel Corporation + * Copyright (C) 2018-2022 Intel Corporation */ #ifndef __iwl_fw_dbg_tlv_h__ #define __iwl_fw_dbg_tlv_h__ @@ -249,11 +249,10 @@ struct iwl_fw_ini_hcmd_tlv { } __packed; /* FW_TLV_DEBUG_HCMD_API_S_VER_1 */

/** -* struct iwl_fw_ini_conf_tlv - preset configuration TLV +* struct iwl_fw_ini_addr_val - Address and value to set it to * * @address: the base address * @value: value to set at address - */ struct iwl_fw_ini_addr_val { __le32 address;

From: Eric Dumazet edumazet@google.com

[ Upstream commit 086d49058cd8471046ae9927524708820f5fd1c7 ]

IPv6 has this hack changing sk->sk_prot when an IPv6 socket is 'converted' to an IPv4 one with IPV6_ADDRFORM option.

This operation is only performed for TCP and UDP, knowing their 'struct proto' for the two network families are populated in the same way, and can not disappear while a reader might use and dereference sk->sk_prot.

If we think about it all reads of sk->sk_prot while either socket lock or RTNL is not acquired should be using READ_ONCE().

Also note that other layers like MPTCP, XFRM, CHELSIO_TLS also write over sk->sk_prot.

BUG: KCSAN: data-race in inet6_recvmsg / ipv6_setsockopt

write to 0xffff8881386f7aa8 of 8 bytes by task 26932 on cpu 0: do_ipv6_setsockopt net/ipv6/ipv6_sockglue.c:492 [inline] ipv6_setsockopt+0x3758/0x3910 net/ipv6/ipv6_sockglue.c:1019 udpv6_setsockopt+0x85/0x90 net/ipv6/udp.c:1649 sock_common_setsockopt+0x5d/0x70 net/core/sock.c:3489 __sys_setsockopt+0x209/0x2a0 net/socket.c:2180 __do_sys_setsockopt net/socket.c:2191 [inline] __se_sys_setsockopt net/socket.c:2188 [inline] __x64_sys_setsockopt+0x62/0x70 net/socket.c:2188 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff8881386f7aa8 of 8 bytes by task 26911 on cpu 1: inet6_recvmsg+0x7a/0x210 net/ipv6/af_inet6.c:659 ____sys_recvmsg+0x16c/0x320 ___sys_recvmsg net/socket.c:2674 [inline] do_recvmmsg+0x3f5/0xae0 net/socket.c:2768 __sys_recvmmsg net/socket.c:2847 [inline] __do_sys_recvmmsg net/socket.c:2870 [inline] __se_sys_recvmmsg net/socket.c:2863 [inline] __x64_sys_recvmmsg+0xde/0x160 net/socket.c:2863 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0xffffffff85e0e980 -> 0xffffffff85e01580

Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 26911 Comm: syz-executor.3 Not tainted 5.17.0-rc2-syzkaller-00316-g0457e5153e0e-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011

Reported-by: syzbot syzkaller@googlegroups.com Signed-off-by: Eric Dumazet edumazet@google.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- net/ipv6/af_inet6.c | 24 ++++++++++++++++++------ net/ipv6/ipv6_sockglue.c | 6 ++++-- 2 files changed, 22 insertions(+), 8 deletions(-)

diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c index 8fe7900f1949..7d7b7523d126 100644 --- a/net/ipv6/af_inet6.c +++ b/net/ipv6/af_inet6.c @@ -441,11 +441,14 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) { struct sock *sk = sock->sk; u32 flags = BIND_WITH_LOCK; + const struct proto *prot; int err = 0;

+ /* IPV6_ADDRFORM can change sk->sk_prot under us. */ + prot = READ_ONCE(sk->sk_prot); /* If the socket has its own bind function then use it. */ - if (sk->sk_prot->bind) - return sk->sk_prot->bind(sk, uaddr, addr_len); + if (prot->bind) + return prot->bind(sk, uaddr, addr_len);

if (addr_len < SIN6_LEN_RFC2133) return -EINVAL; @@ -555,6 +558,7 @@ int inet6_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) void __user *argp = (void __user *)arg; struct sock *sk = sock->sk; struct net *net = sock_net(sk); + const struct proto *prot;

switch (cmd) { case SIOCADDRT: @@ -572,9 +576,11 @@ int inet6_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) case SIOCSIFDSTADDR: return addrconf_set_dstaddr(net, argp); default: - if (!sk->sk_prot->ioctl) + /* IPV6_ADDRFORM can change sk->sk_prot under us. */ + prot = READ_ONCE(sk->sk_prot); + if (!prot->ioctl) return -ENOIOCTLCMD; - return sk->sk_prot->ioctl(sk, cmd, arg); + return prot->ioctl(sk, cmd, arg); } /*NOTREACHED*/ return 0; @@ -636,11 +642,14 @@ INDIRECT_CALLABLE_DECLARE(int udpv6_sendmsg(struct sock *, struct msghdr *, int inet6_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) { struct sock *sk = sock->sk; + const struct proto *prot;

if (unlikely(inet_send_prepare(sk))) return -EAGAIN;

- return INDIRECT_CALL_2(sk->sk_prot->sendmsg, tcp_sendmsg, udpv6_sendmsg, + /* IPV6_ADDRFORM can change sk->sk_prot under us. */ + prot = READ_ONCE(sk->sk_prot); + return INDIRECT_CALL_2(prot->sendmsg, tcp_sendmsg, udpv6_sendmsg, sk, msg, size); }

@@ -650,13 +659,16 @@ int inet6_recvmsg(struct socket *sock, struct msghdr *msg, size_t size, int flags) { struct sock *sk = sock->sk; + const struct proto *prot; int addr_len = 0; int err;

if (likely(!(flags & MSG_ERRQUEUE))) sock_rps_record_flow(sk);

- err = INDIRECT_CALL_2(sk->sk_prot->recvmsg, tcp_recvmsg, udpv6_recvmsg, + /* IPV6_ADDRFORM can change sk->sk_prot under us. */ + prot = READ_ONCE(sk->sk_prot); + err = INDIRECT_CALL_2(prot->recvmsg, tcp_recvmsg, udpv6_recvmsg, sk, msg, size, flags & MSG_DONTWAIT, flags & ~MSG_DONTWAIT, &addr_len); if (err >= 0) diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index a733803a710c..222f6bf220ba 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -475,7 +475,8 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, sock_prot_inuse_add(net, sk->sk_prot, -1); sock_prot_inuse_add(net, &tcp_prot, 1);

- sk->sk_prot = &tcp_prot; + /* Paired with READ_ONCE(sk->sk_prot) in net/ipv6/af_inet6.c */ + WRITE_ONCE(sk->sk_prot, &tcp_prot); icsk->icsk_af_ops = &ipv4_specific; sk->sk_socket->ops = &inet_stream_ops; sk->sk_family = PF_INET; @@ -489,7 +490,8 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, sock_prot_inuse_add(net, sk->sk_prot, -1); sock_prot_inuse_add(net, prot, 1);

- sk->sk_prot = prot; + /* Paired with READ_ONCE(sk->sk_prot) in net/ipv6/af_inet6.c */ + WRITE_ONCE(sk->sk_prot, prot); sk->sk_socket->ops = &inet_dgram_ops; sk->sk_family = PF_INET; }

From: Jue Wang juew@google.com

[ Upstream commit 8ca97812c3c830573f965a07bbd84223e8c5f5bd ]

A rare kernel panic scenario can happen when the following conditions are met due to an erratum on fast string copy instructions:

1) An uncorrected error. 2) That error must be in first cache line of a page. 3) Kernel must execute page_copy from the page immediately before that page.

The fast string copy instructions ("REP; MOVS*") could consume an uncorrectable memory error in the cache line _right after_ the desired region to copy and raise an MCE.

Bit 0 of MSR_IA32_MISC_ENABLE can be cleared to disable fast string copy and will avoid such spurious machine checks. However, that is less preferable due to the permanent performance impact. Considering memory poison is rare, it's desirable to keep fast string copy enabled until an MCE is seen.

Intel has confirmed the following: 1. The CPU erratum of fast string copy only applies to Skylake, Cascade Lake and Cooper Lake generations.

Directly return from the MCE handler: 2. Will result in complete execution of the "REP; MOVS*" with no data loss or corruption. 3. Will not result in another MCE firing on the next poisoned cache line due to "REP; MOVS*". 4. Will resume execution from a correct point in code. 5. Will result in the same instruction that triggered the MCE firing a second MCE immediately for any other software recoverable data fetch errors. 6. Is not safe without disabling the fast string copy, as the next fast string copy of the same buffer on the same CPU would result in a PANIC MCE.

This should mitigate the erratum completely with the only caveat that the fast string copy is disabled on the affected hyper thread thus performance degradation.

This is still better than the OS crashing on MCEs raised on an irrelevant process due to "REP; MOVS*' accesses in a kernel context, e.g., copy_page.

Tested:

Injected errors on 1st cache line of 8 anonymous pages of process 'proc1' and observed MCE consumption from 'proc2' with no panic (directly returned).

Without the fix, the host panicked within a few minutes on a random 'proc2' process due to kernel access from copy_page.

[ bp: Fix comment style + touch ups, zap an unlikely(), improve the quirk function's readability. ]

Signed-off-by: Jue Wang juew@google.com Signed-off-by: Borislav Petkov bp@suse.de Reviewed-by: Tony Luck tony.luck@intel.com Link: https://lore.kernel.org/r/20220218013209.2436006-1-juew@google.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/x86/kernel/cpu/mce/core.c | 64 ++++++++++++++++++++++++++++++ arch/x86/kernel/cpu/mce/internal.h | 5 ++- 2 files changed, 68 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c index 5818b837fd4d..2d719e0d2e40 100644 --- a/arch/x86/kernel/cpu/mce/core.c +++ b/arch/x86/kernel/cpu/mce/core.c @@ -834,6 +834,59 @@ static void quirk_sandybridge_ifu(int bank, struct mce *m, struct pt_regs *regs) m->cs = regs->cs; }

+/* + * Disable fast string copy and return from the MCE handler upon the first SRAR + * MCE on bank 1 due to a CPU erratum on Intel Skylake/Cascade Lake/Cooper Lake + * CPUs. + * The fast string copy instructions ("REP; MOVS*") could consume an + * uncorrectable memory error in the cache line _right after_ the desired region + * to copy and raise an MCE with RIP pointing to the instruction _after_ the + * "REP; MOVS*". + * This mitigation addresses the issue completely with the caveat of performance + * degradation on the CPU affected. This is still better than the OS crashing on + * MCEs raised on an irrelevant process due to "REP; MOVS*" accesses from a + * kernel context (e.g., copy_page). + * + * Returns true when fast string copy on CPU has been disabled. + */ +static noinstr bool quirk_skylake_repmov(void) +{ + u64 mcgstatus = mce_rdmsrl(MSR_IA32_MCG_STATUS); + u64 misc_enable = mce_rdmsrl(MSR_IA32_MISC_ENABLE); + u64 mc1_status; + + /* + * Apply the quirk only to local machine checks, i.e., no broadcast + * sync is needed. + */ + if (!(mcgstatus & MCG_STATUS_LMCES) || + !(misc_enable & MSR_IA32_MISC_ENABLE_FAST_STRING)) + return false; + + mc1_status = mce_rdmsrl(MSR_IA32_MCx_STATUS(1)); + + /* Check for a software-recoverable data fetch error. */ + if ((mc1_status & + (MCI_STATUS_VAL | MCI_STATUS_OVER | MCI_STATUS_UC | MCI_STATUS_EN | + MCI_STATUS_ADDRV | MCI_STATUS_MISCV | MCI_STATUS_PCC | + MCI_STATUS_AR | MCI_STATUS_S)) == + (MCI_STATUS_VAL | MCI_STATUS_UC | MCI_STATUS_EN | + MCI_STATUS_ADDRV | MCI_STATUS_MISCV | + MCI_STATUS_AR | MCI_STATUS_S)) { + misc_enable &= ~MSR_IA32_MISC_ENABLE_FAST_STRING; + mce_wrmsrl(MSR_IA32_MISC_ENABLE, misc_enable); + mce_wrmsrl(MSR_IA32_MCx_STATUS(1), 0); + + instrumentation_begin(); + pr_err_once("Erratum detected, disable fast string copy instructions.\n"); + instrumentation_end(); + + return true; + } + + return false; +} + /* * Do a quick check if any of the events requires a panic. * This decides if we keep the events around or clear them. @@ -1403,6 +1456,9 @@ noinstr void do_machine_check(struct pt_regs *regs) else if (unlikely(!mca_cfg.initialized)) return unexpected_machine_check(regs);

+ if (mce_flags.skx_repmov_quirk && quirk_skylake_repmov()) + goto clear; + /* * Establish sequential order between the CPUs entering the machine * check handler. @@ -1545,6 +1601,7 @@ noinstr void do_machine_check(struct pt_regs *regs) out: instrumentation_end();

+clear: mce_wrmsrl(MSR_IA32_MCG_STATUS, 0); } EXPORT_SYMBOL_GPL(do_machine_check); @@ -1858,6 +1915,13 @@ static int __mcheck_cpu_apply_quirks(struct cpuinfo_x86 *c)

if (c->x86 == 6 && c->x86_model == 45) mce_flags.snb_ifu_quirk = 1; + + /* + * Skylake, Cascacde Lake and Cooper Lake require a quirk on + * rep movs. + */ + if (c->x86 == 6 && c->x86_model == INTEL_FAM6_SKYLAKE_X) + mce_flags.skx_repmov_quirk = 1; }

if (c->x86_vendor == X86_VENDOR_ZHAOXIN) { diff --git a/arch/x86/kernel/cpu/mce/internal.h b/arch/x86/kernel/cpu/mce/internal.h index 52c633950b38..24d099e2d2a2 100644 --- a/arch/x86/kernel/cpu/mce/internal.h +++ b/arch/x86/kernel/cpu/mce/internal.h @@ -170,7 +170,10 @@ struct mce_vendor_flags { /* SandyBridge IFU quirk */ snb_ifu_quirk : 1,

- __reserved_0 : 57; + /* Skylake, Cascade Lake, Cooper Lake REP;MOVS* quirk */ + skx_repmov_quirk : 1, + + __reserved_0 : 56; };

extern struct mce_vendor_flags mce_flags;

From: Baochen Qiang quic_bqiang@quicinc.com

[ Upstream commit 261b07519518bd14cb168b287b17e1d195f8d0c8 ]

We are seeing below warnings:

kernel: [25393.301506] ath11k_pci 0000:01:00.0: failed to flush mgmt transmit queue 0 kernel: [25398.421509] ath11k_pci 0000:01:00.0: failed to flush mgmt transmit queue 0 kernel: [25398.421831] ath11k_pci 0000:01:00.0: dropping mgmt frame for vdev 0, is_started 0

this means ath11k fails to flush mgmt. frames because wmi_mgmt_tx_work has no chance to run in 5 seconds.

By setting /proc/sys/kernel/hung_task_timeout_secs to 20 and increasing ATH11K_FLUSH_TIMEOUT to 50 we get below warnings:

kernel: [ 120.763160] INFO: task wpa_supplicant:924 blocked for more than 20 seconds. kernel: [ 120.763169] Not tainted 5.10.90 #12 kernel: [ 120.763177] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kernel: [ 120.763186] task:wpa_supplicant state:D stack: 0 pid: 924 ppid: 1 flags:0x000043a0 kernel: [ 120.763201] Call Trace: kernel: [ 120.763214] __schedule+0x785/0x12fa kernel: [ 120.763224] ? lockdep_hardirqs_on_prepare+0xe2/0x1bb kernel: [ 120.763242] schedule+0x7e/0xa1 kernel: [ 120.763253] schedule_timeout+0x98/0xfe kernel: [ 120.763266] ? run_local_timers+0x4a/0x4a kernel: [ 120.763291] ath11k_mac_flush_tx_complete+0x197/0x2b1 [ath11k 13c3a9bf37790f4ac8103b3decf7ab4008ac314a] kernel: [ 120.763306] ? init_wait_entry+0x2e/0x2e kernel: [ 120.763343] __ieee80211_flush_queues+0x167/0x21f [mac80211 335da900954f1c5ea7f1613d92088ce83342042c] kernel: [ 120.763378] __ieee80211_recalc_idle+0x105/0x125 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c] kernel: [ 120.763411] ieee80211_recalc_idle+0x14/0x27 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c] kernel: [ 120.763441] ieee80211_free_chanctx+0x77/0xa2 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c] kernel: [ 120.763473] __ieee80211_vif_release_channel+0x100/0x131 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c] kernel: [ 120.763540] ieee80211_vif_release_channel+0x66/0x81 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c] kernel: [ 120.763572] ieee80211_destroy_auth_data+0xa3/0xe6 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c] kernel: [ 120.763612] ieee80211_mgd_deauth+0x178/0x29b [mac80211 335da900954f1c5ea7f1613d92088ce83342042c] kernel: [ 120.763654] cfg80211_mlme_deauth+0x1a8/0x22c [cfg80211 8945aa5bc2af5f6972336665d8ad6f9c191ad5be] kernel: [ 120.763697] nl80211_deauthenticate+0xfa/0x123 [cfg80211 8945aa5bc2af5f6972336665d8ad6f9c191ad5be] kernel: [ 120.763715] genl_rcv_msg+0x392/0x3c2 kernel: [ 120.763750] ? nl80211_associate+0x432/0x432 [cfg80211 8945aa5bc2af5f6972336665d8ad6f9c191ad5be] kernel: [ 120.763782] ? nl80211_associate+0x432/0x432 [cfg80211 8945aa5bc2af5f6972336665d8ad6f9c191ad5be] kernel: [ 120.763802] ? genl_rcv+0x36/0x36 kernel: [ 120.763814] netlink_rcv_skb+0x89/0xf7 kernel: [ 120.763829] genl_rcv+0x28/0x36 kernel: [ 120.763840] netlink_unicast+0x179/0x24b kernel: [ 120.763854] netlink_sendmsg+0x393/0x401 kernel: [ 120.763872] sock_sendmsg+0x72/0x76 kernel: [ 120.763886] ____sys_sendmsg+0x170/0x1e6 kernel: [ 120.763897] ? copy_msghdr_from_user+0x7a/0xa2 kernel: [ 120.763914] ___sys_sendmsg+0x95/0xd1 kernel: [ 120.763940] __sys_sendmsg+0x85/0xbf kernel: [ 120.763956] do_syscall_64+0x43/0x55 kernel: [ 120.763966] entry_SYSCALL_64_after_hwframe+0x44/0xa9 kernel: [ 120.763977] RIP: 0033:0x79089f3fcc83 kernel: [ 120.763986] RSP: 002b:00007ffe604f0508 EFLAGS: 00000246 ORIG_RAX: 000000000000002e kernel: [ 120.763997] RAX: ffffffffffffffda RBX: 000059b40e987690 RCX: 000079089f3fcc83 kernel: [ 120.764006] RDX: 0000000000000000 RSI: 00007ffe604f0558 RDI: 0000000000000009 kernel: [ 120.764014] RBP: 00007ffe604f0540 R08: 0000000000000004 R09: 0000000000400000 kernel: [ 120.764023] R10: 00007ffe604f0638 R11: 0000000000000246 R12: 000059b40ea04980 kernel: [ 120.764032] R13: 00007ffe604f0638 R14: 000059b40e98c360 R15: 00007ffe604f0558 ... kernel: [ 120.765230] INFO: task kworker/u32:26:4239 blocked for more than 20 seconds. kernel: [ 120.765238] Not tainted 5.10.90 #12 kernel: [ 120.765245] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kernel: [ 120.765253] task:kworker/u32:26 state:D stack: 0 pid: 4239 ppid: 2 flags:0x00004080 kernel: [ 120.765284] Workqueue: phy0 ieee80211_iface_work [mac80211] kernel: [ 120.765295] Call Trace: kernel: [ 120.765306] __schedule+0x785/0x12fa kernel: [ 120.765316] ? find_held_lock+0x3d/0xb2 kernel: [ 120.765331] schedule+0x7e/0xa1 kernel: [ 120.765340] schedule_preempt_disabled+0x15/0x1e kernel: [ 120.765349] __mutex_lock_common+0x561/0xc0d kernel: [ 120.765375] ? ieee80211_sta_work+0x3e/0x1232 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c] kernel: [ 120.765390] mutex_lock_nested+0x20/0x26 kernel: [ 120.765416] ieee80211_sta_work+0x3e/0x1232 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c] kernel: [ 120.765430] ? skb_dequeue+0x54/0x5e kernel: [ 120.765456] ? ieee80211_iface_work+0x7b/0x339 [mac80211 335da900954f1c5ea7f1613d92088ce83342042c] kernel: [ 120.765485] process_one_work+0x270/0x504 kernel: [ 120.765501] worker_thread+0x215/0x376 kernel: [ 120.765514] kthread+0x159/0x168 kernel: [ 120.765526] ? pr_cont_work+0x5b/0x5b kernel: [ 120.765536] ? kthread_blkcg+0x31/0x31 kernel: [ 120.765550] ret_from_fork+0x22/0x30 ... kernel: [ 120.765867] Showing all locks held in the system: ... kernel: [ 120.766164] 5 locks held by wpa_supplicant/924: kernel: [ 120.766172] #0: ffffffffb1e63eb0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x36 kernel: [ 120.766197] #1: ffffffffb1e5b1c8 (rtnl_mutex){+.+.}-{3:3}, at: nl80211_pre_doit+0x2a/0x15c [cfg80211] kernel: [ 120.766238] #2: ffff99f08347cd08 (&wdev->mtx){+.+.}-{3:3}, at: nl80211_deauthenticate+0xde/0x123 [cfg80211] kernel: [ 120.766279] #3: ffff99f09df12a48 (&local->mtx){+.+.}-{3:3}, at: ieee80211_destroy_auth_data+0x9b/0xe6 [mac80211] kernel: [ 120.766321] #4: ffff99f09df12ce0 (&local->chanctx_mtx){+.+.}-{3:3}, at: ieee80211_vif_release_channel+0x5e/0x81 [mac80211] ... kernel: [ 120.766585] 3 locks held by kworker/u32:26/4239: kernel: [ 120.766593] #0: ffff99f04458f948 ((wq_completion)phy0){+.+.}-{0:0}, at: process_one_work+0x19a/0x504 kernel: [ 120.766621] #1: ffffbad54b3cfe50 ((work_completion)(&sdata->work)){+.+.}-{0:0}, at: process_one_work+0x1c0/0x504 kernel: [ 120.766649] #2: ffff99f08347cd08 (&wdev->mtx){+.+.}-{3:3}, at: ieee80211_sta_work+0x3e/0x1232 [mac80211]

With above info the issue is clear: First wmi_mgmt_tx_work is inserted to local->workqueue after sdata->work inserted, then wpa_supplicant acquires wdev->mtx in nl80211_deauthenticate and finally calls ath11k_mac_op_flush where it waits all mgmt. frames to be sent out by wmi_mgmt_tx_work. Meanwhile, sdata->work is blocked by wdev->mtx in ieee80211_sta_work, as a result wmi_mgmt_tx_work has no chance to run.

Change to use ab->workqueue instead of local->workqueue to fix this issue.

Signed-off-by: Baochen Qiang quic_bqiang@quicinc.com Signed-off-by: Kalle Valo quic_kvalo@quicinc.com Link: https://lore.kernel.org/r/20220217084545.18844-1-quic_bqiang@quicinc.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath11k/mac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index 07f499d5ec92..36be4ec969ad 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -5566,7 +5566,7 @@ static int ath11k_mac_mgmt_tx(struct ath11k *ar, struct sk_buff *skb,

skb_queue_tail(q, skb); atomic_inc(&ar->num_pending_mgmt_tx); - ieee80211_queue_work(ar->hw, &ar->wmi_mgmt_tx_work); + queue_work(ar->ab->workqueue, &ar->wmi_mgmt_tx_work);

return 0; }

From: Ping-Ke Shih pkshih@realtek.com

[ Upstream commit a0061be4e54b52e5e4ff179c3f817107ddbb2830 ]

Larry reported funny log entries [1] when he used rtl8821ce. These messages are not harmless, but not useful for users, so change them to rtw_dbg() level. By the way, I review all rtw_info() and change others to rtw_warn().

[1] https://lore.kernel.org/linux-wireless/c356d5ae-a7b3-3065-1121-64c446e70333@...

Reported-by: Larry Finger Larry.Finger@lwfinger.net Signed-off-by: Ping-Ke Shih pkshih@realtek.com Signed-off-by: Kalle Valo kvalo@kernel.org Link: https://lore.kernel.org/r/20220218035527.9835-1-pkshih@realtek.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/realtek/rtw88/debug.c | 2 +- drivers/net/wireless/realtek/rtw88/debug.h | 1 + drivers/net/wireless/realtek/rtw88/fw.c | 2 +- drivers/net/wireless/realtek/rtw88/mac80211.c | 8 ++++---- drivers/net/wireless/realtek/rtw88/main.c | 8 ++++---- drivers/net/wireless/realtek/rtw88/rtw8821c.c | 2 +- drivers/net/wireless/realtek/rtw88/rtw8822b.c | 4 ++-- drivers/net/wireless/realtek/rtw88/rtw8822c.c | 4 ++-- drivers/net/wireless/realtek/rtw88/sar.c | 8 ++++---- 9 files changed, 20 insertions(+), 19 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtw88/debug.c b/drivers/net/wireless/realtek/rtw88/debug.c index e429428232c1..e7e9f17df96a 100644 --- a/drivers/net/wireless/realtek/rtw88/debug.c +++ b/drivers/net/wireless/realtek/rtw88/debug.c @@ -390,7 +390,7 @@ static ssize_t rtw_debugfs_set_h2c(struct file *filp, &param[0], &param[1], &param[2], &param[3], &param[4], &param[5], &param[6], &param[7]); if (num != 8) { - rtw_info(rtwdev, "invalid H2C command format for debug\n"); + rtw_warn(rtwdev, "invalid H2C command format for debug\n"); return -EINVAL; }

diff --git a/drivers/net/wireless/realtek/rtw88/debug.h b/drivers/net/wireless/realtek/rtw88/debug.h index 61f8369fe2d6..066792dd96af 100644 --- a/drivers/net/wireless/realtek/rtw88/debug.h +++ b/drivers/net/wireless/realtek/rtw88/debug.h @@ -23,6 +23,7 @@ enum rtw_debug_mask { RTW_DBG_PATH_DIV = 0x00004000, RTW_DBG_ADAPTIVITY = 0x00008000, RTW_DBG_HW_SCAN = 0x00010000, + RTW_DBG_STATE = 0x00020000,

RTW_DBG_ALL = 0xffffffff }; diff --git a/drivers/net/wireless/realtek/rtw88/fw.c b/drivers/net/wireless/realtek/rtw88/fw.c index 2f7c036f9022..08437df0f0ed 100644 --- a/drivers/net/wireless/realtek/rtw88/fw.c +++ b/drivers/net/wireless/realtek/rtw88/fw.c @@ -2109,7 +2109,7 @@ void rtw_hw_scan_status_report(struct rtw_dev *rtwdev, struct sk_buff *skb) rtw_hw_scan_complete(rtwdev, vif, aborted);

if (aborted) - rtw_info(rtwdev, "HW scan aborted with code: %d\n", rc); + rtw_dbg(rtwdev, RTW_DBG_HW_SCAN, "HW scan aborted with code: %d\n", rc); }

void rtw_store_op_chan(struct rtw_dev *rtwdev) diff --git a/drivers/net/wireless/realtek/rtw88/mac80211.c b/drivers/net/wireless/realtek/rtw88/mac80211.c index ae7d97de5fdf..2933a8be1a18 100644 --- a/drivers/net/wireless/realtek/rtw88/mac80211.c +++ b/drivers/net/wireless/realtek/rtw88/mac80211.c @@ -205,7 +205,7 @@ static int rtw_ops_add_interface(struct ieee80211_hw *hw,

mutex_unlock(&rtwdev->mutex);

- rtw_info(rtwdev, "start vif %pM on port %d\n", vif->addr, rtwvif->port); + rtw_dbg(rtwdev, RTW_DBG_STATE, "start vif %pM on port %d\n", vif->addr, rtwvif->port); return 0; }

@@ -216,7 +216,7 @@ static void rtw_ops_remove_interface(struct ieee80211_hw *hw, struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv; u32 config = 0;

- rtw_info(rtwdev, "stop vif %pM on port %d\n", vif->addr, rtwvif->port); + rtw_dbg(rtwdev, RTW_DBG_STATE, "stop vif %pM on port %d\n", vif->addr, rtwvif->port);

mutex_lock(&rtwdev->mutex);

@@ -242,8 +242,8 @@ static int rtw_ops_change_interface(struct ieee80211_hw *hw, { struct rtw_dev *rtwdev = hw->priv;

- rtw_info(rtwdev, "change vif %pM (%d)->(%d), p2p (%d)->(%d)\n", - vif->addr, vif->type, type, vif->p2p, p2p); + rtw_dbg(rtwdev, RTW_DBG_STATE, "change vif %pM (%d)->(%d), p2p (%d)->(%d)\n", + vif->addr, vif->type, type, vif->p2p, p2p);

rtw_ops_remove_interface(hw, vif);

diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c index 38252113c4a8..20b85af7bd3e 100644 --- a/drivers/net/wireless/realtek/rtw88/main.c +++ b/drivers/net/wireless/realtek/rtw88/main.c @@ -305,8 +305,8 @@ int rtw_sta_add(struct rtw_dev *rtwdev, struct ieee80211_sta *sta,

rtwdev->sta_cnt++; rtwdev->beacon_loss = false; - rtw_info(rtwdev, "sta %pM joined with macid %d\n", - sta->addr, si->mac_id); + rtw_dbg(rtwdev, RTW_DBG_STATE, "sta %pM joined with macid %d\n", + sta->addr, si->mac_id);

return 0; } @@ -327,8 +327,8 @@ void rtw_sta_remove(struct rtw_dev *rtwdev, struct ieee80211_sta *sta, kfree(si->mask);

rtwdev->sta_cnt--; - rtw_info(rtwdev, "sta %pM with macid %d left\n", - sta->addr, si->mac_id); + rtw_dbg(rtwdev, RTW_DBG_STATE, "sta %pM with macid %d left\n", + sta->addr, si->mac_id); }

struct rtw_fwcd_hdr { diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821c.c b/drivers/net/wireless/realtek/rtw88/rtw8821c.c index db078df63f85..80d4761796b1 100644 --- a/drivers/net/wireless/realtek/rtw88/rtw8821c.c +++ b/drivers/net/wireless/realtek/rtw88/rtw8821c.c @@ -499,7 +499,7 @@ static s8 get_cck_rx_pwr(struct rtw_dev *rtwdev, u8 lna_idx, u8 vga_idx) }

if (lna_idx >= lna_gain_table_size) { - rtw_info(rtwdev, "incorrect lna index (%d)\n", lna_idx); + rtw_warn(rtwdev, "incorrect lna index (%d)\n", lna_idx); return -120; }

diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822b.c b/drivers/net/wireless/realtek/rtw88/rtw8822b.c index dd4fbb82750d..a23806b69b0f 100644 --- a/drivers/net/wireless/realtek/rtw88/rtw8822b.c +++ b/drivers/net/wireless/realtek/rtw88/rtw8822b.c @@ -1012,12 +1012,12 @@ static int rtw8822b_set_antenna(struct rtw_dev *rtwdev, antenna_tx, antenna_rx);

if (!rtw8822b_check_rf_path(antenna_tx)) { - rtw_info(rtwdev, "unsupported tx path 0x%x\n", antenna_tx); + rtw_warn(rtwdev, "unsupported tx path 0x%x\n", antenna_tx); return -EINVAL; }

if (!rtw8822b_check_rf_path(antenna_rx)) { - rtw_info(rtwdev, "unsupported rx path 0x%x\n", antenna_rx); + rtw_warn(rtwdev, "unsupported rx path 0x%x\n", antenna_rx); return -EINVAL; }

diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822c.c b/drivers/net/wireless/realtek/rtw88/rtw8822c.c index 35c46e5209de..ddf4d1a23e60 100644 --- a/drivers/net/wireless/realtek/rtw88/rtw8822c.c +++ b/drivers/net/wireless/realtek/rtw88/rtw8822c.c @@ -2798,7 +2798,7 @@ static int rtw8822c_set_antenna(struct rtw_dev *rtwdev, case BB_PATH_AB: break; default: - rtw_info(rtwdev, "unsupported tx path 0x%x\n", antenna_tx); + rtw_warn(rtwdev, "unsupported tx path 0x%x\n", antenna_tx); return -EINVAL; }

@@ -2808,7 +2808,7 @@ static int rtw8822c_set_antenna(struct rtw_dev *rtwdev, case BB_PATH_AB: break; default: - rtw_info(rtwdev, "unsupported rx path 0x%x\n", antenna_rx); + rtw_warn(rtwdev, "unsupported rx path 0x%x\n", antenna_rx); return -EINVAL; }

diff --git a/drivers/net/wireless/realtek/rtw88/sar.c b/drivers/net/wireless/realtek/rtw88/sar.c index 3383726c4d90..c472f1502b82 100644 --- a/drivers/net/wireless/realtek/rtw88/sar.c +++ b/drivers/net/wireless/realtek/rtw88/sar.c @@ -91,10 +91,10 @@ int rtw_set_sar_specs(struct rtw_dev *rtwdev, return -EINVAL;

power = sar->sub_specs[i].power; - rtw_info(rtwdev, "On freq %u to %u, set SAR %d in 1/%lu dBm\n", - rtw_common_sar_freq_ranges[idx].start_freq, - rtw_common_sar_freq_ranges[idx].end_freq, - power, BIT(RTW_COMMON_SAR_FCT)); + rtw_dbg(rtwdev, RTW_DBG_REGD, "On freq %u to %u, set SAR %d in 1/%lu dBm\n", + rtw_common_sar_freq_ranges[idx].start_freq, + rtw_common_sar_freq_ranges[idx].end_freq, + power, BIT(RTW_COMMON_SAR_FCT));

for (j = 0; j < RTW_RF_PATH_MAX; j++) { for (k = 0; k < RTW_RATE_SECTION_MAX; k++) {

From: Mike Snitzer snitzer@redhat.com

[ Upstream commit fa247089de9936a46e290d4724cb5f0b845600f5 ]

Update both bio-based and request-based DM to requeue IO if the mapping table not available.

This race of IO being submitted before the DM device ready is so narrow, yet possible for initial table load given that the DM device's request_queue is created prior, that it best to requeue IO to handle this unlikely case.

Reported-by: Zhang Yi yi.zhang@huawei.com Signed-off-by: Mike Snitzer snitzer@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/md/dm-rq.c | 7 ++++++- drivers/md/dm.c | 11 +++-------- 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c index 579ab6183d4d..dffeb47a9efb 100644 --- a/drivers/md/dm-rq.c +++ b/drivers/md/dm-rq.c @@ -499,8 +499,13 @@ static blk_status_t dm_mq_queue_rq(struct blk_mq_hw_ctx *hctx,

if (unlikely(!ti)) { int srcu_idx; - struct dm_table *map = dm_get_live_table(md, &srcu_idx); + struct dm_table *map;

+ map = dm_get_live_table(md, &srcu_idx); + if (unlikely(!map)) { + dm_put_live_table(md, srcu_idx); + return BLK_STS_RESOURCE; + } ti = dm_table_find_target(map, 0); dm_put_live_table(md, srcu_idx); } diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 997ace47bbd5..3ff50d315a41 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -1495,15 +1495,10 @@ static void dm_submit_bio(struct bio *bio) struct dm_table *map;

map = dm_get_live_table(md, &srcu_idx); - if (unlikely(!map)) { - DMERR_LIMIT("%s: mapping table unavailable, erroring io", - dm_device_name(md)); - bio_io_error(bio); - goto out; - }

- /* If suspended, queue this IO for later */ - if (unlikely(test_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags))) { + /* If suspended, or map not yet available, queue this IO for later */ + if (unlikely(test_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags)) || + unlikely(!map)) { if (bio->bi_opf & REQ_NOWAIT) bio_wouldblock_error(bio); else if (bio->bi_opf & REQ_RAHEAD)

From: Alex Williamson alex.williamson@redhat.com

[ Upstream commit 6e031ec0e5a2dda53e12e0d2a7e9b15b47a3c502 ]

Resolve build errors reported against UML build for undefined ioport_map() and ioport_unmap() functions. Without this config option a device cannot have vfio_pci_core_device.has_vga set, so the existing function would always return -EINVAL anyway.

Reported-by: Geert Uytterhoeven geert@linux-m68k.org Link: https://lore.kernel.org/r/20220123125737.2658758-1-geert@linux-m68k.org Link: https://lore.kernel.org/r/164306582968.3758255.15192949639574660648.stgit@om... Signed-off-by: Alex Williamson alex.williamson@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/vfio/pci/vfio_pci_rdwr.c | 2 ++ include/linux/vfio_pci_core.h | 9 +++++++++ 2 files changed, 11 insertions(+)

diff --git a/drivers/vfio/pci/vfio_pci_rdwr.c b/drivers/vfio/pci/vfio_pci_rdwr.c index 57d3b2cbbd8e..82ac1569deb0 100644 --- a/drivers/vfio/pci/vfio_pci_rdwr.c +++ b/drivers/vfio/pci/vfio_pci_rdwr.c @@ -288,6 +288,7 @@ ssize_t vfio_pci_bar_rw(struct vfio_pci_core_device *vdev, char __user *buf, return done; }

+#ifdef CONFIG_VFIO_PCI_VGA ssize_t vfio_pci_vga_rw(struct vfio_pci_core_device *vdev, char __user *buf, size_t count, loff_t *ppos, bool iswrite) { @@ -355,6 +356,7 @@ ssize_t vfio_pci_vga_rw(struct vfio_pci_core_device *vdev, char __user *buf,

return done; } +#endif

static void vfio_pci_ioeventfd_do_write(struct vfio_pci_ioeventfd *ioeventfd, bool test_mem) diff --git a/include/linux/vfio_pci_core.h b/include/linux/vfio_pci_core.h index ef9a44b6cf5d..ae6f4838ab75 100644 --- a/include/linux/vfio_pci_core.h +++ b/include/linux/vfio_pci_core.h @@ -159,8 +159,17 @@ extern ssize_t vfio_pci_config_rw(struct vfio_pci_core_device *vdev, extern ssize_t vfio_pci_bar_rw(struct vfio_pci_core_device *vdev, char __user *buf, size_t count, loff_t *ppos, bool iswrite);

+#ifdef CONFIG_VFIO_PCI_VGA extern ssize_t vfio_pci_vga_rw(struct vfio_pci_core_device *vdev, char __user *buf, size_t count, loff_t *ppos, bool iswrite); +#else +static inline ssize_t vfio_pci_vga_rw(struct vfio_pci_core_device *vdev, + char __user *buf, size_t count, + loff_t *ppos, bool iswrite) +{ + return -EINVAL; +} +#endif

extern long vfio_pci_ioeventfd(struct vfio_pci_core_device *vdev, loff_t offset, uint64_t data, int count, int fd);

From: Damien Le Moal damien.lemoal@opensource.wdc.com

[ Upstream commit 7e6b7e740addcea450041b5be8e42f0a4ceece0f ]

The call to pm8001_ccb_task_free() at the end of pm8001_mpi_task_abort_resp() already frees the ccb tag. So when the device NCQ_ABORT_ALL_FLAG is set, the tag should not be freed again. Also change the hardcoded 0xBFFFFFFF value to ~NCQ_ABORT_ALL_FLAG as it ought to be.

Link: https://lore.kernel.org/r/20220220031810.738362-19-damien.lemoal@opensource.... Reviewed-by: Jack Wang jinpu.wang@ionos.com Signed-off-by: Damien Le Moal damien.lemoal@opensource.wdc.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/pm8001/pm8001_hwi.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c index 9ec310b795c3..da9cac6671a3 100644 --- a/drivers/scsi/pm8001/pm8001_hwi.c +++ b/drivers/scsi/pm8001/pm8001_hwi.c @@ -3703,12 +3703,11 @@ int pm8001_mpi_task_abort_resp(struct pm8001_hba_info *pm8001_ha, void *piomb) mb();

if (pm8001_dev->id & NCQ_ABORT_ALL_FLAG) { - pm8001_tag_free(pm8001_ha, tag); sas_free_task(t); - /* clear the flag */ - pm8001_dev->id &= 0xBFFFFFFF; - } else + pm8001_dev->id &= ~NCQ_ABORT_ALL_FLAG; + } else { t->task_done(t); + }

return 0; }

From: Damien Le Moal damien.lemoal@opensource.wdc.com

[ Upstream commit f90a74892f3acf0cdec5844e90fc8686ca13e7d7 ]

In pm8001_send_abort_all(), make sure to free the allocated sas task if pm8001_tag_alloc() or pm8001_mpi_build_cmd() fail.

Link: https://lore.kernel.org/r/20220220031810.738362-21-damien.lemoal@opensource.... Reviewed-by: John Garry john.garry@huawei.com Signed-off-by: Damien Le Moal damien.lemoal@opensource.wdc.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/pm8001/pm8001_hwi.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c index e12b3ea4153a..1cf3878b47f3 100644 --- a/drivers/scsi/pm8001/pm8001_hwi.c +++ b/drivers/scsi/pm8001/pm8001_hwi.c @@ -1765,7 +1765,6 @@ static void pm8001_send_abort_all(struct pm8001_hba_info *pm8001_ha, }

task = sas_alloc_slow_task(GFP_ATOMIC); - if (!task) { pm8001_dbg(pm8001_ha, FAIL, "cannot allocate task\n"); return; @@ -1774,8 +1773,10 @@ static void pm8001_send_abort_all(struct pm8001_hba_info *pm8001_ha, task->task_done = pm8001_task_done;

res = pm8001_tag_alloc(pm8001_ha, &ccb_tag); - if (res) + if (res) { + sas_free_task(task); return; + }

ccb = &pm8001_ha->ccb_info[ccb_tag]; ccb->device = pm8001_ha_dev; @@ -1791,8 +1792,10 @@ static void pm8001_send_abort_all(struct pm8001_hba_info *pm8001_ha,

ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &task_abort, sizeof(task_abort), 0); - if (ret) + if (ret) { + sas_free_task(task); pm8001_tag_free(pm8001_ha, ccb_tag); + }

}

From: Damien Le Moal damien.lemoal@opensource.wdc.com

[ Upstream commit f792a3629f4c4aa4c3703d66b43ce1edcc3ec09a ]

In pm8001_chip_fw_flash_update_build(), if pm8001_chip_fw_flash_update_build() fails, the struct fw_control_ex allocated must be freed.

Link: https://lore.kernel.org/r/20220220031810.738362-23-damien.lemoal@opensource.... Reviewed-by: Jack Wang jinpu.wang@ionos.com Signed-off-by: Damien Le Moal damien.lemoal@opensource.wdc.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/pm8001/pm8001_hwi.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c index 54db341455b9..c87ed28794c9 100644 --- a/drivers/scsi/pm8001/pm8001_hwi.c +++ b/drivers/scsi/pm8001/pm8001_hwi.c @@ -4877,8 +4877,10 @@ pm8001_chip_fw_flash_update_req(struct pm8001_hba_info *pm8001_ha, ccb->ccb_tag = tag; rc = pm8001_chip_fw_flash_update_build(pm8001_ha, &flash_update_info, tag); - if (rc) + if (rc) { + kfree(fw_control_context); pm8001_tag_free(pm8001_ha, tag); + }

return rc; }

From: Hans de Goede hdegoede@redhat.com

[ Upstream commit 94fa115f7b28a3f02611499175e134f0a823b686 ]

Some devices use e.g. a portrait panel in a standard laptop casing made for landscape panels. efifb calls drm_get_panel_orientation_quirk() and sets fb_info.fbcon_rotate_hint to make fbcon rotate the console so that it shows up-right instead of on its side.

When switching to simpledrm the fbcon renders on its side. Call the drm_connector_set_panel_orientation_with_quirk() helper to add a "panel orientation" property on devices listed in the quirk table, to make the fbcon (and aware userspace apps) rotate the image to display properly.

Cc: Javier Martinez Canillas javierm@redhat.com Signed-off-by: Hans de Goede hdegoede@redhat.com Reviewed-by: Javier Martinez Canillas javierm@redhat.com Acked-by: Thomas Zimmermann tzimmermann@suse.de Link: https://patchwork.freedesktop.org/patch/msgid/20220221220045.11958-1-hdegoed... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/tiny/simpledrm.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/tiny/simpledrm.c b/drivers/gpu/drm/tiny/simpledrm.c index 04146da2d1d8..11576e0297e4 100644 --- a/drivers/gpu/drm/tiny/simpledrm.c +++ b/drivers/gpu/drm/tiny/simpledrm.c @@ -798,6 +798,9 @@ static int simpledrm_device_init_modeset(struct simpledrm_device *sdev) if (ret) return ret; drm_connector_helper_add(connector, &simpledrm_connector_helper_funcs); + drm_connector_set_panel_orientation_with_quirk(connector, + DRM_MODE_PANEL_ORIENTATION_UNKNOWN, + mode->hdisplay, mode->vdisplay);

formats = simpledrm_device_formats(sdev, &nformats);

From: Nicholas Piggin npiggin@gmail.com

[ Upstream commit 8b91cee5eadd2021f55e6775f2d50bd56d00c217 ]

Hash faults are not resoved in NMI context, instead causing the access to fail. This is done because perf interrupts can get backtraces including walking the user stack, and taking a hash fault on those could deadlock on the HPTE lock if the perf interrupt hits while the same HPTE lock is being held by the hash fault code. The user-access for the stack walking will notice the access failed and deal with that in the perf code.

The reason to allow perf interrupts in is to better profile hash faults.

The problem with this is any hash fault on a kernel access that happens in NMI context will crash, because kernel accesses must not fail.

Hard lockups, system reset, machine checks that access vmalloc space including modules and including stack backtracing and symbol lookup in modules, per-cpu data, etc could all run into this problem.

Fix this by disallowing perf interrupts in the hash fault code (the direct hash fault is covered by MSR[EE]=0 so the PMI disable just needs to extend to the preload case). This simplifies the tricky logic in hash faults and perf, at the cost of reduced profiling of hash faults.

perf can still latch addresses when interrupts are disabled, it just won't get the stack trace at that point, so it would still find hot spots, just sometimes with confusing stack chains.

An alternative could be to allow perf interrupts here but always do the slowpath stack walk if we are in nmi context, but that slows down all perf interrupt stack walking on hash though and it does not remove as much tricky code.

Reported-by: Laurent Dufour ldufour@linux.ibm.com Signed-off-by: Nicholas Piggin npiggin@gmail.com Tested-by: Laurent Dufour ldufour@linux.ibm.com Reviewed-by: Aneesh Kumar K.V aneesh.kumar@linux.ibm.com Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20220204035348.545435-1-npiggin@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/include/asm/interrupt.h | 2 +- arch/powerpc/mm/book3s64/hash_utils.c | 54 ++++----------------------- arch/powerpc/perf/callchain.h | 9 +---- arch/powerpc/perf/callchain_64.c | 27 -------------- 4 files changed, 10 insertions(+), 82 deletions(-)

diff --git a/arch/powerpc/include/asm/interrupt.h b/arch/powerpc/include/asm/interrupt.h index fc28f46d2f9d..5404f7abbcf8 100644 --- a/arch/powerpc/include/asm/interrupt.h +++ b/arch/powerpc/include/asm/interrupt.h @@ -612,7 +612,7 @@ DECLARE_INTERRUPT_HANDLER_RAW(do_slb_fault); DECLARE_INTERRUPT_HANDLER(do_bad_segment_interrupt);

/* hash_utils.c */ -DECLARE_INTERRUPT_HANDLER_RAW(do_hash_fault); +DECLARE_INTERRUPT_HANDLER(do_hash_fault);

/* fault.c */ DECLARE_INTERRUPT_HANDLER(do_page_fault); diff --git a/arch/powerpc/mm/book3s64/hash_utils.c b/arch/powerpc/mm/book3s64/hash_utils.c index 7abf82a698d3..985cabdd7f67 100644 --- a/arch/powerpc/mm/book3s64/hash_utils.c +++ b/arch/powerpc/mm/book3s64/hash_utils.c @@ -1621,8 +1621,7 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap, } EXPORT_SYMBOL_GPL(hash_page);

-DECLARE_INTERRUPT_HANDLER(__do_hash_fault); -DEFINE_INTERRUPT_HANDLER(__do_hash_fault) +DEFINE_INTERRUPT_HANDLER(do_hash_fault) { unsigned long ea = regs->dar; unsigned long dsisr = regs->dsisr; @@ -1681,35 +1680,6 @@ DEFINE_INTERRUPT_HANDLER(__do_hash_fault) } }

-/* - * The _RAW interrupt entry checks for the in_nmi() case before - * running the full handler. - */ -DEFINE_INTERRUPT_HANDLER_RAW(do_hash_fault) -{ - /* - * If we are in an "NMI" (e.g., an interrupt when soft-disabled), then - * don't call hash_page, just fail the fault. This is required to - * prevent re-entrancy problems in the hash code, namely perf - * interrupts hitting while something holds H_PAGE_BUSY, and taking a - * hash fault. See the comment in hash_preload(). - * - * We come here as a result of a DSI at a point where we don't want - * to call hash_page, such as when we are accessing memory (possibly - * user memory) inside a PMU interrupt that occurred while interrupts - * were soft-disabled. We want to invoke the exception handler for - * the access, or panic if there isn't a handler. - */ - if (unlikely(in_nmi())) { - do_bad_page_fault_segv(regs); - return 0; - } - - __do_hash_fault(regs); - - return 0; -} - #ifdef CONFIG_PPC_MM_SLICES static bool should_hash_preload(struct mm_struct *mm, unsigned long ea) { @@ -1776,26 +1746,18 @@ static void hash_preload(struct mm_struct *mm, pte_t *ptep, unsigned long ea, #endif /* CONFIG_PPC_64K_PAGES */

/* - * __hash_page_* must run with interrupts off, as it sets the - * H_PAGE_BUSY bit. It's possible for perf interrupts to hit at any - * time and may take a hash fault reading the user stack, see - * read_user_stack_slow() in the powerpc/perf code. - * - * If that takes a hash fault on the same page as we lock here, it - * will bail out when seeing H_PAGE_BUSY set, and retry the access - * leading to an infinite loop. + * __hash_page_* must run with interrupts off, including PMI interrupts + * off, as it sets the H_PAGE_BUSY bit. * - * Disabling interrupts here does not prevent perf interrupts, but it - * will prevent them taking hash faults (see the NMI test in - * do_hash_page), then read_user_stack's copy_from_user_nofault will - * fail and perf will fall back to read_user_stack_slow(), which - * walks the Linux page tables. + * It's otherwise possible for perf interrupts to hit at any time and + * may take a hash fault reading the user stack, which could take a + * hash miss and deadlock on the same H_PAGE_BUSY bit. * * Interrupts must also be off for the duration of the * mm_is_thread_local test and update, to prevent preempt running the * mm on another CPU (XXX: this may be racy vs kthread_use_mm). */ - local_irq_save(flags); + powerpc_local_irq_pmu_save(flags);

/* Is that local to this CPU ? */ if (mm_is_thread_local(mm)) @@ -1820,7 +1782,7 @@ static void hash_preload(struct mm_struct *mm, pte_t *ptep, unsigned long ea, mm_ctx_user_psize(&mm->context), pte_val(*ptep));

- local_irq_restore(flags); + powerpc_local_irq_pmu_restore(flags); }

/* diff --git a/arch/powerpc/perf/callchain.h b/arch/powerpc/perf/callchain.h index d6fa6e25234f..19a8d051ddf1 100644 --- a/arch/powerpc/perf/callchain.h +++ b/arch/powerpc/perf/callchain.h @@ -2,7 +2,6 @@ #ifndef _POWERPC_PERF_CALLCHAIN_H #define _POWERPC_PERF_CALLCHAIN_H

-int read_user_stack_slow(const void __user *ptr, void *buf, int nb); void perf_callchain_user_64(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs); void perf_callchain_user_32(struct perf_callchain_entry_ctx *entry, @@ -26,17 +25,11 @@ static inline int __read_user_stack(const void __user *ptr, void *ret, size_t size) { unsigned long addr = (unsigned long)ptr; - int rc;

if (addr > TASK_SIZE - size || (addr & (size - 1))) return -EFAULT;

- rc = copy_from_user_nofault(ret, ptr, size); - - if (IS_ENABLED(CONFIG_PPC64) && !radix_enabled() && rc) - return read_user_stack_slow(ptr, ret, size); - - return rc; + return copy_from_user_nofault(ret, ptr, size); }

#endif /* _POWERPC_PERF_CALLCHAIN_H */ diff --git a/arch/powerpc/perf/callchain_64.c b/arch/powerpc/perf/callchain_64.c index 8d0df4226328..488e8a21a11e 100644 --- a/arch/powerpc/perf/callchain_64.c +++ b/arch/powerpc/perf/callchain_64.c @@ -18,33 +18,6 @@

#include "callchain.h"

-/* - * On 64-bit we don't want to invoke hash_page on user addresses from - * interrupt context, so if the access faults, we read the page tables - * to find which page (if any) is mapped and access it directly. Radix - * has no need for this so it doesn't use read_user_stack_slow. - */ -int read_user_stack_slow(const void __user *ptr, void *buf, int nb) -{ - - unsigned long addr = (unsigned long) ptr; - unsigned long offset; - struct page *page; - void *kaddr; - - if (get_user_page_fast_only(addr, FOLL_WRITE, &page)) { - kaddr = page_address(page); - - /* align address to page boundary */ - offset = addr & ~PAGE_MASK; - - memcpy(buf, kaddr + offset, nb); - put_page(page); - return 0; - } - return -EFAULT; -} - static int read_user_stack_64(const unsigned long __user *ptr, unsigned long *ret) { return __read_user_stack(ptr, ret, sizeof(*ret));

From: Hans de Goede hdegoede@redhat.com

[ Upstream commit 00d0566614b7bb7b226cb5a6895b0180ffe6915a ]

Normally the native AXP288 fg/charger drivers are preferred but one some devices the ACPI drivers should be used instead.

The ACPI battery/ac drivers use the acpi_quirk_skip_acpi_ac_and_battery() helper to determine if they should skip loading because native fuel-gauge/ charger drivers like the AXP288 drivers will be used.

The new acpi_quirk_skip_acpi_ac_and_battery() helper includes a list of exceptions for boards where the ACPI drivers should be used instead.

Use this new helper to avoid loading on such boards. Note this requires adding a Kconfig dependency on ACPI, this is not a problem because ACPI should be enabled on all boards with an AXP288 PMIC anyways.

Signed-off-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Sebastian Reichel sebastian.reichel@collabora.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/power/supply/Kconfig | 2 +- drivers/power/supply/axp288_charger.c | 7 +++++++ 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig index b366e2fd8e97..d7534f12e9ef 100644 --- a/drivers/power/supply/Kconfig +++ b/drivers/power/supply/Kconfig @@ -351,7 +351,7 @@ config AXP20X_POWER

config AXP288_CHARGER tristate "X-Powers AXP288 Charger" - depends on MFD_AXP20X && EXTCON_AXP288 && IOSF_MBI + depends on MFD_AXP20X && EXTCON_AXP288 && IOSF_MBI && ACPI help Say yes here to have support X-Power AXP288 power management IC (PMIC) integrated charger. diff --git a/drivers/power/supply/axp288_charger.c b/drivers/power/supply/axp288_charger.c index c498e62ab4e2..19746e658a6a 100644 --- a/drivers/power/supply/axp288_charger.c +++ b/drivers/power/supply/axp288_charger.c @@ -838,6 +838,13 @@ static int axp288_charger_probe(struct platform_device *pdev) struct power_supply_config charger_cfg = {}; unsigned int val;

+ /* + * Normally the native AXP288 fg/charger drivers are preferred but + * on some devices the ACPI drivers should be used instead. + */ + if (!acpi_quirk_skip_acpi_ac_and_battery()) + return -ENODEV; + /* * On some devices the fuelgauge and charger parts of the axp288 are * not used, check that the fuelgauge is enabled (CC_CTRL != 0).

From: Randy Dunlap rdunlap@infradead.org

[ Upstream commit cc8294ec4738d25e2bb2d71f7d82a9bf7f4a157b ]

__setup() handlers should return 1 if the command line option is handled and 0 if not (or maybe never return 0; doing so just pollutes init's environment with strings that are not init arguments/parameters).

Return 1 from aha152x_setup() to indicate that the boot option has been handled.

Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@omprussia.ru Link: https://lore.kernel.org/r/20220223000623.5920-1-rdunlap@infradead.org Cc: "Juergen E. Fischer" fischer@norbit.de Cc: "James E.J. Bottomley" jejb@linux.ibm.com Cc: "Martin K. Petersen" martin.petersen@oracle.com Reported-by: Igor Zhbanov i.zhbanov@omprussia.ru Signed-off-by: Randy Dunlap rdunlap@infradead.org Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/aha152x.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/aha152x.c b/drivers/scsi/aha152x.c index d17880b57d17..2449b4215b32 100644 --- a/drivers/scsi/aha152x.c +++ b/drivers/scsi/aha152x.c @@ -3375,13 +3375,11 @@ static int __init aha152x_setup(char *str) setup[setup_count].synchronous = ints[0] >= 6 ? ints[6] : 1; setup[setup_count].delay = ints[0] >= 7 ? ints[7] : DELAY_DEFAULT; setup[setup_count].ext_trans = ints[0] >= 8 ? ints[8] : 0; - if (ints[0] > 8) { /*}*/ + if (ints[0] > 8) printk(KERN_NOTICE "aha152x: usage: aha152x=<IOBASE>[,<IRQ>[,<SCSI ID>" "[,<RECONNECT>[,<PARITY>[,<SYNCHRONOUS>[,<DELAY>[,<EXT_TRANS>]]]]]]]\n"); - } else { + else setup_count++; - return 0; - }

return 1; }

From: Xiang Chen chenxiang66@hisilicon.com

[ Upstream commit 286ce4c65fbdf5eb9d4d5f4e4997c4e32bf1b073 ]

Add a file operation for "cnt" file under bist directory, so users can only read "cnt" or clear "cnt" to zero, but cannot randomly modify.

Link: https://lore.kernel.org/r/1645703489-87194-6-git-send-email-john.garry@huawe... Signed-off-by: Xiang Chen chenxiang66@hisilicon.com Signed-off-by: Qi Liu liuqi115@huawei.com Signed-off-by: John Garry john.garry@huawei.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 52 +++++++++++++++++++++++++- 1 file changed, 50 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index ce0d4bfbe51e..ee7be7d51a21 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -3976,6 +3976,54 @@ static const struct file_operations debugfs_bist_phy_v3_hw_fops = { .owner = THIS_MODULE, };

+static ssize_t debugfs_bist_cnt_v3_hw_write(struct file *filp, + const char __user *buf, + size_t count, loff_t *ppos) +{ + struct seq_file *m = filp->private_data; + struct hisi_hba *hisi_hba = m->private; + unsigned int cnt; + int val; + + if (hisi_hba->debugfs_bist_enable) + return -EPERM; + + val = kstrtouint_from_user(buf, count, 0, &cnt); + if (val) + return val; + + if (cnt) + return -EINVAL; + + hisi_hba->debugfs_bist_cnt = 0; + return count; +} + +static int debugfs_bist_cnt_v3_hw_show(struct seq_file *s, void *p) +{ + struct hisi_hba *hisi_hba = s->private; + + seq_printf(s, "%u\n", hisi_hba->debugfs_bist_cnt); + + return 0; +} + +static int debugfs_bist_cnt_v3_hw_open(struct inode *inode, + struct file *filp) +{ + return single_open(filp, debugfs_bist_cnt_v3_hw_show, + inode->i_private); +} + +static const struct file_operations debugfs_bist_cnt_v3_hw_ops = { + .open = debugfs_bist_cnt_v3_hw_open, + .read = seq_read, + .write = debugfs_bist_cnt_v3_hw_write, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + static const struct { int value; char *name; @@ -4613,8 +4661,8 @@ static void debugfs_bist_init_v3_hw(struct hisi_hba *hisi_hba) debugfs_create_file("phy_id", 0600, hisi_hba->debugfs_bist_dentry, hisi_hba, &debugfs_bist_phy_v3_hw_fops);

- debugfs_create_u32("cnt", 0600, hisi_hba->debugfs_bist_dentry, - &hisi_hba->debugfs_bist_cnt); + debugfs_create_file("cnt", 0600, hisi_hba->debugfs_bist_dentry, + hisi_hba, &debugfs_bist_cnt_v3_hw_ops);

debugfs_create_file("loopback_mode", 0600, hisi_hba->debugfs_bist_dentry,

From: Hangyu Hua hbh25y@gmail.com

[ Upstream commit 4a0a1436053b17e50b7c88858fb0824326641793 ]

of_node_put(np) needs to be called when pdev == NULL.

Signed-off-by: Hangyu Hua hbh25y@gmail.com Signed-off-by: Thomas Bogendoerfer tsbogend@alpha.franken.de Signed-off-by: Sasha Levin sashal@kernel.org --- arch/mips/ralink/ill_acc.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/arch/mips/ralink/ill_acc.c b/arch/mips/ralink/ill_acc.c index 115a69fc20ca..f395ae218470 100644 --- a/arch/mips/ralink/ill_acc.c +++ b/arch/mips/ralink/ill_acc.c @@ -61,6 +61,7 @@ static int __init ill_acc_of_setup(void) pdev = of_find_device_by_node(np); if (!pdev) { pr_err("%pOFn: failed to lookup pdev\n", np); + of_node_put(np); return -EINVAL; }

From: Sven Eckelmann sven@narfation.org

[ Upstream commit a02192151b7dbf855084c38dca380d77c7658353 ]

Assign rtnl_link_ops->get_link_net() callback so that IFLA_LINK_NETNSID is added to rtnetlink messages. This fixes iproute2 which otherwise resolved the link interface to an interface in the wrong namespace.

Test commands:

ip netns add nst ip link add dummy0 type dummy ip link add link macvtap0 link dummy0 type macvtap ip link set macvtap0 netns nst ip -netns nst link show macvtap0

Before:

10: macvtap0@gre0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 500 link/ether 5e:8f:ae:1d:60:50 brd ff:ff:ff:ff:ff:ff

After:

10: macvtap0@if2: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN mode DEFAULT group default qlen 500 link/ether 5e:8f:ae:1d:60:50 brd ff:ff:ff:ff:ff:ff link-netnsid 0

Reported-by: Leonardo Mörlein freifunk@irrelefant.net Signed-off-by: Sven Eckelmann sven@narfation.org Link: https://lore.kernel.org/r/20220228003240.1337426-1-sven@narfation.org Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/macvtap.c | 6 ++++++ 1 file changed, 6 insertions(+)

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c index 6b12902a803f..cecf8c63096c 100644 --- a/drivers/net/macvtap.c +++ b/drivers/net/macvtap.c @@ -133,11 +133,17 @@ static void macvtap_setup(struct net_device *dev) dev->tx_queue_len = TUN_READQ_SIZE; }

+static struct net *macvtap_link_net(const struct net_device *dev) +{ + return dev_net(macvlan_dev_real_dev(dev)); +} + static struct rtnl_link_ops macvtap_link_ops __read_mostly = { .kind = "macvtap", .setup = macvtap_setup, .newlink = macvtap_newlink, .dellink = macvtap_dellink, + .get_link_net = macvtap_link_net, .priv_size = sizeof(struct macvtap_dev), };

From: Harold Huang baymaxhuang@gmail.com

[ Upstream commit 74a335a07a17d131b9263bfdbdcb5e40673ca9ca ]

In patch [1], tun_msg_ctl was added to allow pass batched xdp buffers to tun_sendmsg. Although we donot use msg_controllen in this path, we should check msg_controllen to make sure the caller pass a valid msg_ctl.

[1]: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...

Reported-by: Eric Dumazet eric.dumazet@gmail.com Suggested-by: Jason Wang jasowang@redhat.com Signed-off-by: Harold Huang baymaxhuang@gmail.com Acked-by: Jason Wang jasowang@redhat.com Link: https://lore.kernel.org/r/20220303022441.383865-1-baymaxhuang@gmail.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/tap.c | 3 ++- drivers/net/tun.c | 3 ++- drivers/vhost/net.c | 1 + 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/tap.c b/drivers/net/tap.c index 8e3a28ba6b28..ba2ef5437e16 100644 --- a/drivers/net/tap.c +++ b/drivers/net/tap.c @@ -1198,7 +1198,8 @@ static int tap_sendmsg(struct socket *sock, struct msghdr *m, struct xdp_buff *xdp; int i;

- if (ctl && (ctl->type == TUN_MSG_PTR)) { + if (m->msg_controllen == sizeof(struct tun_msg_ctl) && + ctl && ctl->type == TUN_MSG_PTR) { for (i = 0; i < ctl->num; i++) { xdp = &((struct xdp_buff *)ctl->ptr)[i]; tap_get_user_xdp(q, xdp); diff --git a/drivers/net/tun.c b/drivers/net/tun.c index fed85447701a..de999e0fedbc 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -2489,7 +2489,8 @@ static int tun_sendmsg(struct socket *sock, struct msghdr *m, size_t total_len) if (!tun) return -EBADFD;

- if (ctl && (ctl->type == TUN_MSG_PTR)) { + if (m->msg_controllen == sizeof(struct tun_msg_ctl) && + ctl && ctl->type == TUN_MSG_PTR) { struct tun_page tpage; int n = ctl->num; int flush = 0; diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 28ef323882fb..792ab5f23647 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -473,6 +473,7 @@ static void vhost_tx_batch(struct vhost_net *net, goto signal_used;

msghdr->msg_control = &ctl; + msghdr->msg_controllen = sizeof(ctl); err = sock->ops->sendmsg(sock, msghdr, 0); if (unlikely(err < 0)) { vq_err(&nvq->vq, "Fail to batch sending packets\n");

From: Sean Wang sean.wang@mediatek.com

[ Upstream commit e4412654e260842e1a94ffe0d4026e8a6fd34246 ]

There is a conflict between MediaTek wmt event and msft vendor extension logic in the core layer since 145373cb1b1f ("Bluetooth: Add framework for Microsoft vendor extension") was introduced because we changed the type of mediatek wmt event to the type of msft vendor event in the driver.

But the purpose we reported mediatek event to the core layer is for the diagnostic purpose with that we are able to see the full packet trace via monitoring socket with btmon. Thus, it is harmless we keep the original type of mediatek vendor event here to avoid breaking the msft extension function especially they can be supported by Mediatek chipset like MT7921 , MT7922 devices and future devices.

Signed-off-by: Sean Wang sean.wang@mediatek.com Signed-off-by: Marcel Holtmann marcel@holtmann.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/bluetooth/btmtk.h | 1 + drivers/bluetooth/btmtksdio.c | 9 +-------- drivers/bluetooth/btusb.c | 8 -------- 3 files changed, 2 insertions(+), 16 deletions(-)

diff --git a/drivers/bluetooth/btmtk.h b/drivers/bluetooth/btmtk.h index 6e7b0c7567c0..0defa68bc2ce 100644 --- a/drivers/bluetooth/btmtk.h +++ b/drivers/bluetooth/btmtk.h @@ -5,6 +5,7 @@ #define FIRMWARE_MT7668 "mediatek/mt7668pr2h.bin" #define FIRMWARE_MT7961 "mediatek/BT_RAM_CODE_MT7961_1_2_hdr.bin"

+#define HCI_EV_WMT 0xe4 #define HCI_WMT_MAX_EVENT_SIZE 64

#define BTMTK_WMT_REG_READ 0x2 diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c index b5ea8d3bffaa..a295a9389892 100644 --- a/drivers/bluetooth/btmtksdio.c +++ b/drivers/bluetooth/btmtksdio.c @@ -284,13 +284,6 @@ static int btmtksdio_recv_event(struct hci_dev *hdev, struct sk_buff *skb) struct hci_event_hdr *hdr = (void *)skb->data; int err;

- /* Fix up the vendor event id with 0xff for vendor specific instead - * of 0xe4 so that event send via monitoring socket can be parsed - * properly. - */ - if (hdr->evt == 0xe4) - hdr->evt = HCI_EV_VENDOR; - /* When someone waits for the WMT event, the skb is being cloned * and being processed the events from there then. */ @@ -306,7 +299,7 @@ static int btmtksdio_recv_event(struct hci_dev *hdev, struct sk_buff *skb) if (err < 0) goto err_free_skb;

- if (hdr->evt == HCI_EV_VENDOR) { + if (hdr->evt == HCI_EV_WMT) { if (test_and_clear_bit(BTMTKSDIO_TX_WAIT_VND_EVT, &bdev->tx_state)) { /* Barrier to sync with other CPUs */ diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index c30d131da784..0959d10a6b84 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -2245,7 +2245,6 @@ static void btusb_mtk_wmt_recv(struct urb *urb) { struct hci_dev *hdev = urb->context; struct btusb_data *data = hci_get_drvdata(hdev); - struct hci_event_hdr *hdr; struct sk_buff *skb; int err;

@@ -2265,13 +2264,6 @@ static void btusb_mtk_wmt_recv(struct urb *urb) hci_skb_pkt_type(skb) = HCI_EVENT_PKT; skb_put_data(skb, urb->transfer_buffer, urb->actual_length);

- hdr = (void *)skb->data; - /* Fix up the vendor event id with 0xff for vendor specific - * instead of 0xe4 so that event send via monitoring socket can - * be parsed properly. - */ - hdr->evt = 0xff; - /* When someone waits for the WMT event, the skb is being cloned * and being processed the events from there then. */

From: "Minghao Chi (CGEL ZTE)" chi.minghao@zte.com.cn

[ Upstream commit d3715b2333e9a21692ba16ef8645eda584a9515d ]

Use memset to initialize structs to prevent memory leaks in l2cap_ecred_connect

Reported-by: Zeal Robot zealci@zte.com.cn Signed-off-by: Minghao Chi (CGEL ZTE) chi.minghao@zte.com.cn Signed-off-by: Marcel Holtmann marcel@holtmann.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/bluetooth/l2cap_core.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index e817ff0607a0..8df99c07f272 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -1436,6 +1436,7 @@ static void l2cap_ecred_connect(struct l2cap_chan *chan)

l2cap_ecred_init(chan, 0);

+ memset(&data, 0, sizeof(data)); data.pdu.req.psm = chan->psm; data.pdu.req.mtu = cpu_to_le16(chan->imtu); data.pdu.req.mps = cpu_to_le16(chan->mps);

From: Li Chen lchen@ambarella.com

[ Upstream commit bf8d87c076f55b8b4dfdb6bc6c6b6dc0c2ccb487 ]

Fix a misused goto label jump since that can result in a memory leak.

Link: https://lore.kernel.org/r/17e7b9b9ee6.c6d9c6a02564.4545388417402742326@zohom... Signed-off-by: Li Chen lchen@ambarella.com Signed-off-by: Lorenzo Pieralisi lorenzo.pieralisi@arm.com Acked-by: Kishon Vijay Abraham I kishon@ti.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pci/endpoint/functions/pci-epf-test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c index c7e45633beaf..5b833f00e980 100644 --- a/drivers/pci/endpoint/functions/pci-epf-test.c +++ b/drivers/pci/endpoint/functions/pci-epf-test.c @@ -451,7 +451,7 @@ static int pci_epf_test_write(struct pci_epf_test *epf_test) if (!epf_test->dma_supported) { dev_err(dev, "Cannot transfer data using DMA\n"); ret = -EINVAL; - goto err_map_addr; + goto err_dma_map; }

src_phys_addr = dma_map_single(dma_dev, buf, reg->size,

From: Michael Ellerman mpe@ellerman.id.au

[ Upstream commit 591b4b268435f00d2f0b81f786c2c7bd5ef66416 ]

Paul reported a warning with DEBUG_ATOMIC_SLEEP=y:

BUG: sleeping function called from invalid context at include/linux/sched/mm.h:256 in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 1, name: swapper/0 preempt_count: 0, expected: 0 ... Call Trace: dump_stack_lvl+0xa0/0xec (unreliable) __might_resched+0x2f4/0x310 kmem_cache_alloc+0x220/0x4b0 __pud_alloc+0x74/0x1d0 hash__map_kernel_page+0x2cc/0x390 do_patch_instruction+0x134/0x4a0 arch_jump_label_transform+0x64/0x78 __jump_label_update+0x148/0x180 static_key_enable_cpuslocked+0xd0/0x120 static_key_enable+0x30/0x50 check_kvm_guest+0x60/0x88 pSeries_smp_probe+0x54/0xb0 smp_prepare_cpus+0x3e0/0x430 kernel_init_freeable+0x20c/0x43c kernel_init+0x30/0x1a0 ret_from_kernel_thread+0x5c/0x64

Peter pointed out that this is because do_patch_instruction() has disabled interrupts, but then map_patch_area() calls map_kernel_page() then hash__map_kernel_page() which does a sleeping memory allocation.

We only see the warning in KVM guests with SMT enabled, which is not particularly common, or on other platforms if CONFIG_KPROBES is disabled, also not common. The reason we don't see it in most configurations is that another path that happens to have interrupts enabled has allocated the required page tables for us, eg. there's a path in kprobes init that does that. That's just pure luck though.

As Christophe suggested, the simplest solution is to do a dummy map/unmap when we initialise the patching, so that any required page table levels are pre-allocated before the first call to do_patch_instruction(). This works because the unmap doesn't free any page tables that were allocated by the map, it just clears the PTE, leaving the page table levels there for the next map.

Reported-by: Paul Menzel pmenzel@molgen.mpg.de Debugged-by: Peter Zijlstra peterz@infradead.org Suggested-by: Christophe Leroy christophe.leroy@csgroup.eu Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20220223015821.473097-1-mpe@ellerman.id.au Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/lib/code-patching.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)

diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c index 906d43463366..00c68e7fb11e 100644 --- a/arch/powerpc/lib/code-patching.c +++ b/arch/powerpc/lib/code-patching.c @@ -43,9 +43,14 @@ int raw_patch_instruction(u32 *addr, ppc_inst_t instr) #ifdef CONFIG_STRICT_KERNEL_RWX static DEFINE_PER_CPU(struct vm_struct *, text_poke_area);

+static int map_patch_area(void *addr, unsigned long text_poke_addr); +static void unmap_patch_area(unsigned long addr); + static int text_area_cpu_up(unsigned int cpu) { struct vm_struct *area; + unsigned long addr; + int err;

area = get_vm_area(PAGE_SIZE, VM_ALLOC); if (!area) { @@ -53,6 +58,15 @@ static int text_area_cpu_up(unsigned int cpu) cpu); return -1; } + + // Map/unmap the area to ensure all page tables are pre-allocated + addr = (unsigned long)area->addr; + err = map_patch_area(empty_zero_page, addr); + if (err) + return err; + + unmap_patch_area(addr); + this_cpu_write(text_poke_area, area);

return 0;

From: Hangyu Hua hbh25y@gmail.com

[ Upstream commit d601fd24e6964967f115f036a840f4f28488f63f ]

Refcount leak will happen when format_show returns failure in multiple cases. Unified management of of_node_put can fix this problem.

Signed-off-by: Hangyu Hua hbh25y@gmail.com Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20220302021959.10959-1-hbh25y@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/powerpc/kernel/secvar-sysfs.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kernel/secvar-sysfs.c b/arch/powerpc/kernel/secvar-sysfs.c index a0a78aba2083..1ee4640a2641 100644 --- a/arch/powerpc/kernel/secvar-sysfs.c +++ b/arch/powerpc/kernel/secvar-sysfs.c @@ -26,15 +26,18 @@ static ssize_t format_show(struct kobject *kobj, struct kobj_attribute *attr, const char *format;

node = of_find_compatible_node(NULL, NULL, "ibm,secvar-backend"); - if (!of_device_is_available(node)) - return -ENODEV; + if (!of_device_is_available(node)) { + rc = -ENODEV; + goto out; + }

rc = of_property_read_string(node, "format", &format); if (rc) - return rc; + goto out;

rc = sprintf(buf, "%s\n", format);

+out: of_node_put(node);

return rc;

From: Hans de Goede hdegoede@redhat.com

[ Upstream commit 1e8aa2aa1274953e8e595f0630436744597d0d64 ]

The recently added support for Lenovo Yoga Tablet 2 tablets uses symbols from EFI and SPI add "depends on EFI && SPI" to the X86_ANDROID_TABLETS Kconfig entry.

Reported-by: Randy Dunlap rdunlap@infradead.org Signed-off-by: Hans de Goede hdegoede@redhat.com Acked-by: Randy Dunlap rdunlap@infradead.org Tested-by: Randy Dunlap rdunlap@infradead.org Link: https://lore.kernel.org/r/20220308152942.262130-1-hdegoede@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 24deeeb29af2..53abd553b842 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -1027,7 +1027,7 @@ config TOUCHSCREEN_DMI

config X86_ANDROID_TABLETS tristate "X86 Android tablet support" - depends on I2C && SERIAL_DEV_BUS && ACPI && GPIOLIB + depends on I2C && SPI && SERIAL_DEV_BUS && ACPI && EFI && GPIOLIB help X86 tablets which ship with Android as (part of) the factory image typically have various problems with their DSDTs. The factory kernels

From: Vincent Mailhol mailhol.vincent@wanadoo.fr

[ Upstream commit 7a8cd7c0ee823a1cc893ab3feaa23e4b602bfb9a ]

Function es58x_fd_rx_event() invokes the es58x_check_msg_len() macro:

| ret = es58x_check_msg_len(es58x_dev->dev, *rx_event_msg, msg_len);

While doing so, it dereferences an uninitialized variable: *rx_event_msg.

This is actually harmless because es58x_check_msg_len() only uses preprocessor macros (sizeof() and __stringify()) on *rx_event_msg. c.f. [1].

Nonetheless, this pattern is confusing so the lines are reordered to make sure that rx_event_msg is correctly initialized.

This patch also fixes a false positive warning reported by cppcheck:

| cppcheck possible warnings: (new ones prefixed by >>, may not be real problems) | | In file included from drivers/net/can/usb/etas_es58x/es58x_fd.c: | >> drivers/net/can/usb/etas_es58x/es58x_fd.c:174:8: warning: Uninitialized variable: rx_event_msg [uninitvar] | ret = es58x_check_msg_len(es58x_dev->dev, *rx_event_msg, msg_len); | ^

[1] https://elixir.bootlin.com/linux/v5.16/source/drivers/net/can/usb/etas_es58x...

Link: https://lore.kernel.org/all/20220306101302.708783-1-mailhol.vincent@wanadoo.... Signed-off-by: Vincent Mailhol mailhol.vincent@wanadoo.fr Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/can/usb/etas_es58x/es58x_fd.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/can/usb/etas_es58x/es58x_fd.c b/drivers/net/can/usb/etas_es58x/es58x_fd.c index ec87126e1a7d..8ccda748fd08 100644 --- a/drivers/net/can/usb/etas_es58x/es58x_fd.c +++ b/drivers/net/can/usb/etas_es58x/es58x_fd.c @@ -172,12 +172,11 @@ static int es58x_fd_rx_event_msg(struct net_device *netdev, const struct es58x_fd_rx_event_msg *rx_event_msg; int ret;

+ rx_event_msg = &es58x_fd_urb_cmd->rx_event_msg; ret = es58x_check_msg_len(es58x_dev->dev, *rx_event_msg, msg_len); if (ret) return ret;

- rx_event_msg = &es58x_fd_urb_cmd->rx_event_msg; - return es58x_rx_err_msg(netdev, rx_event_msg->error_code, rx_event_msg->event_code, get_unaligned_le64(&rx_event_msg->timestamp));

From: Jakub Kicinski kuba@kernel.org

[ Upstream commit 5d26cff5bdbebdf98ba48217c078ff102536f134 ]

George reports that altnames can eat up kernel memory. We should charge that memory appropriately.

Reported-by: George Shuklin george.shuklin@gmail.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/core/rtnetlink.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 2fb8eb6791e8..9c9ad3d4b766 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -3658,7 +3658,7 @@ static int rtnl_alt_ifname(int cmd, struct net_device *dev, struct nlattr *attr, if (err) return err;

- alt_ifname = nla_strdup(attr, GFP_KERNEL); + alt_ifname = nla_strdup(attr, GFP_KERNEL_ACCOUNT); if (!alt_ifname) return -ENOMEM;

From: Gal Pressman gal@nvidia.com

[ Upstream commit 970adfb76095fa719778d70a6b86030d2feb88dd ]

Unlike the legacy EEPROM callbacks, when using the netlink EEPROM query (get_module_eeprom_by_page) the driver should not try to validate the query parameters, but just perform the read requested by the userspace.

Recent discussion in the mailing list: https://lore.kernel.org/netdev/20220120093051.70845141@kicinski-fedora-PC1C0...

Signed-off-by: Gal Pressman gal@nvidia.com Reviewed-by: Ido Schimmel idosch@nvidia.com Reviewed-by: Maxim Mikityanskiy maximmi@nvidia.com Signed-off-by: Saeed Mahameed saeedm@nvidia.com Signed-off-by: Sasha Levin sashal@kernel.org --- .../net/ethernet/mellanox/mlx5/core/port.c | 23 ------------------- 1 file changed, 23 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/port.c b/drivers/net/ethernet/mellanox/mlx5/core/port.c index 7b16a1188aab..fd79860de723 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/port.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/port.c @@ -433,35 +433,12 @@ int mlx5_query_module_eeprom_by_page(struct mlx5_core_dev *dev, struct mlx5_module_eeprom_query_params *params, u8 *data) { - u8 module_id; int err;

err = mlx5_query_module_num(dev, &params->module_number); if (err) return err;

- err = mlx5_query_module_id(dev, params->module_number, &module_id); - if (err) - return err; - - switch (module_id) { - case MLX5_MODULE_ID_SFP: - if (params->page > 0) - return -EINVAL; - break; - case MLX5_MODULE_ID_QSFP: - case MLX5_MODULE_ID_QSFP28: - case MLX5_MODULE_ID_QSFP_PLUS: - if (params->page > 3) - return -EINVAL; - break; - case MLX5_MODULE_ID_DSFP: - break; - default: - mlx5_core_err(dev, "Module ID not recognized: 0x%x\n", module_id); - return -EINVAL; - } - if (params->i2c_address != MLX5_I2C_ADDR_HIGH && params->i2c_address != MLX5_I2C_ADDR_LOW) { mlx5_core_err(dev, "I2C address not recognized: 0x%x\n", params->i2c_address);

From: Jorge Lopez jorge.lopez2@hp.com

[ Upstream commit be9d73e64957bbd31ee9a0d11adc0f720974c558 ]

Several WMI queries leverage hp_wmi_read_int function to read their data. hp_wmi_read_int function was corrected in a previous patch. Now, this function invokes hp_wmi_perform_query with input parameter of size zero and the output buffer of size 4.

WMI commands calling hp_wmi_perform_query with input buffer size value of zero are listed below.

HPWMI_DISPLAY_QUERY HPWMI_HDDTEMP_QUERY HPWMI_ALS_QUERY HPWMI_HARDWARE_QUERY HPWMI_WIRELESS_QUERY HPWMI_BIOS_QUERY HPWMI_FEATURE_QUERY HPWMI_HOTKEY_QUERY HPWMI_FEATURE2_QUERY HPWMI_WIRELESS2_QUERY HPWMI_POSTCODEERROR_QUERY HPWMI_THERMAL_PROFILE_QUERY HPWMI_FAN_SPEED_MAX_GET_QUERY

Invoking those WMI commands with an input buffer size greater than zero will cause error 0x05 to be returned.

All WMI commands executed by the driver were reviewed and changes were made to ensure the expected input and output buffer size match the WMI specification.

Changes were validated on a HP ZBook Workstation notebook, HP EliteBook x360, and HP EliteBook 850 G8. Additional validation was included in the test process to ensure no other commands were incorrectly handled.

Signed-off-by: Jorge Lopez jorge.lopez2@hp.com Link: https://lore.kernel.org/r/20220310210853.28367-4-jorge.lopez2@hp.com Reviewed-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/platform/x86/hp-wmi.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c index f822ef6eb93c..88f0bfd6ecf1 100644 --- a/drivers/platform/x86/hp-wmi.c +++ b/drivers/platform/x86/hp-wmi.c @@ -330,7 +330,7 @@ static int hp_wmi_get_fan_speed(int fan) char fan_data[4] = { fan, 0, 0, 0 };

int ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_GET_QUERY, HPWMI_GM, - &fan_data, sizeof(fan_data), + &fan_data, sizeof(char), sizeof(fan_data));

if (ret != 0) @@ -399,7 +399,7 @@ static int omen_thermal_profile_set(int mode) return -EINVAL;

ret = hp_wmi_perform_query(HPWMI_SET_PERFORMANCE_MODE, HPWMI_GM, - &buffer, sizeof(buffer), sizeof(buffer)); + &buffer, sizeof(buffer), 0);

if (ret) return ret < 0 ? ret : -EINVAL; @@ -436,7 +436,7 @@ static int hp_wmi_fan_speed_max_set(int enabled) int ret;

ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_MAX_SET_QUERY, HPWMI_GM, - &enabled, sizeof(enabled), sizeof(enabled)); + &enabled, sizeof(enabled), 0);

if (ret) return ret < 0 ? ret : -EINVAL; @@ -449,7 +449,7 @@ static int hp_wmi_fan_speed_max_get(void) int val = 0, ret;

ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_MAX_GET_QUERY, HPWMI_GM, - &val, sizeof(val), sizeof(val)); + &val, 0, sizeof(val));

if (ret) return ret < 0 ? ret : -EINVAL; @@ -461,7 +461,7 @@ static int __init hp_wmi_bios_2008_later(void) { int state = 0; int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, HPWMI_READ, &state, - sizeof(state), sizeof(state)); + 0, sizeof(state)); if (!ret) return 1;

@@ -472,7 +472,7 @@ static int __init hp_wmi_bios_2009_later(void) { u8 state[128]; int ret = hp_wmi_perform_query(HPWMI_FEATURE2_QUERY, HPWMI_READ, &state, - sizeof(state), sizeof(state)); + 0, sizeof(state)); if (!ret) return 1;

@@ -550,7 +550,7 @@ static int hp_wmi_rfkill2_refresh(void) int err, i;

err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state, - sizeof(state), sizeof(state)); + 0, sizeof(state)); if (err) return err;

@@ -639,7 +639,7 @@ static ssize_t als_store(struct device *dev, struct device_attribute *attr, return ret;

ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, HPWMI_WRITE, &tmp, - sizeof(tmp), sizeof(tmp)); + sizeof(tmp), 0); if (ret) return ret < 0 ? ret : -EINVAL;

@@ -660,9 +660,9 @@ static ssize_t postcode_store(struct device *dev, struct device_attribute *attr, if (clear == false) return -EINVAL;

- /* Clear the POST error code. It is kept until until cleared. */ + /* Clear the POST error code. It is kept until cleared. */ ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, HPWMI_WRITE, &tmp, - sizeof(tmp), sizeof(tmp)); + sizeof(tmp), 0); if (ret) return ret < 0 ? ret : -EINVAL;

@@ -952,7 +952,7 @@ static int __init hp_wmi_rfkill2_setup(struct platform_device *device) int err, i;

err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state, - sizeof(state), sizeof(state)); + 0, sizeof(state)); if (err) return err < 0 ? err : -EINVAL;

From: "H. Nikolaus Schaller" hns@goldelico.com

[ Upstream commit ac01df343e5a6c6bcead2ed421af1fde30f73e7e ]

Usually, the vbus_regulator (smps10 on omap5evm) boots up disabled.

Hence calling regulator_disable() indirectly through dwc3_omap_set_mailbox() during probe leads to:

[ 10.332764] WARNING: CPU: 0 PID: 1628 at drivers/regulator/core.c:2853 _regulator_disable+0x40/0x164 [ 10.351919] unbalanced disables for smps10_out1 [ 10.361298] Modules linked in: dwc3_omap(+) clk_twl6040 at24 gpio_twl6040 palmas_gpadc palmas_pwrbutton industrialio snd_soc_omap_mcbsp(+) snd_soc_ti_sdma display_connector ti_tpd12s015 drm leds_gpio drm_panel_orientation_quirks ip_tables x_tables ipv6 autofs4 [ 10.387818] CPU: 0 PID: 1628 Comm: systemd-udevd Not tainted 5.17.0-rc1-letux-lpae+ #8139 [ 10.405129] Hardware name: Generic OMAP5 (Flattened Device Tree) [ 10.411455] unwind_backtrace from show_stack+0x10/0x14 [ 10.416970] show_stack from dump_stack_lvl+0x40/0x4c [ 10.422313] dump_stack_lvl from __warn+0xb8/0x170 [ 10.427377] __warn from warn_slowpath_fmt+0x70/0x9c [ 10.432595] warn_slowpath_fmt from _regulator_disable+0x40/0x164 [ 10.439037] _regulator_disable from regulator_disable+0x30/0x64 [ 10.445382] regulator_disable from dwc3_omap_set_mailbox+0x8c/0xf0 [dwc3_omap] [ 10.453116] dwc3_omap_set_mailbox [dwc3_omap] from dwc3_omap_probe+0x2b8/0x394 [dwc3_omap] [ 10.467021] dwc3_omap_probe [dwc3_omap] from platform_probe+0x58/0xa8 [ 10.481762] platform_probe from really_probe+0x168/0x2fc [ 10.481782] really_probe from __driver_probe_device+0xc4/0xd8 [ 10.481782] __driver_probe_device from driver_probe_device+0x24/0xa4 [ 10.503762] driver_probe_device from __driver_attach+0xc4/0xd8 [ 10.510018] __driver_attach from bus_for_each_dev+0x64/0xa0 [ 10.516001] bus_for_each_dev from bus_add_driver+0x148/0x1a4 [ 10.524880] bus_add_driver from driver_register+0xb4/0xf8 [ 10.530678] driver_register from do_one_initcall+0x90/0x1c4 [ 10.536661] do_one_initcall from do_init_module+0x4c/0x200 [ 10.536683] do_init_module from load_module+0x13dc/0x1910 [ 10.551159] load_module from sys_finit_module+0xc8/0xd8 [ 10.561319] sys_finit_module from __sys_trace_return+0x0/0x18 [ 10.561336] Exception stack(0xc344bfa8 to 0xc344bff0) [ 10.561341] bfa0: b6fb5778 b6fab8d8 00000007 b6ecfbb8 00000000 b6ed0398 [ 10.561341] bfc0: b6fb5778 b6fab8d8 855c0500 0000017b 00020000 b6f9a3cc 00000000 b6fb5778 [ 10.595500] bfe0: bede18f8 bede18e8 b6ec9aeb b6dda1c2 [ 10.601345] ---[ end trace 0000000000000000 ]---

Fix this unnecessary warning by checking if the regulator is enabled.

Signed-off-by: H. Nikolaus Schaller hns@goldelico.com Link: https://lore.kernel.org/r/af3b750dc2265d875deaabcf5f80098c9645da45.164674461... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/dwc3/dwc3-omap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c index e196673f5c64..efaf0db595f4 100644 --- a/drivers/usb/dwc3/dwc3-omap.c +++ b/drivers/usb/dwc3/dwc3-omap.c @@ -242,7 +242,7 @@ static void dwc3_omap_set_mailbox(struct dwc3_omap *omap, break;

case OMAP_DWC3_ID_FLOAT: - if (omap->vbus_reg) + if (omap->vbus_reg && regulator_is_enabled(omap->vbus_reg)) regulator_disable(omap->vbus_reg); val = dwc3_omap_read_utmi_ctrl(omap); val |= USBOTGSS_UTMI_OTG_CTRL_IDDIG;

From: Deren Wu deren.wu@mediatek.com

[ Upstream commit 123bc712b1de0805f9d683687e17b1ec2aba0b68 ]

mt7921s driver may receive frames with fragment buffers. If there is a CTS packet received in monitor mode, the payload is 10 bytes only and need 6 bytes header padding after RXD buffer. However, only RXD in the first linear buffer, if we pull buffer size RXD-size+6 bytes with skb_pull(), that would trigger "BUG_ON(skb->len < skb->data_len)" in __skb_pull().

To avoid the nonlinear buffer issue, enlarge the RXD size from 128 to 256 to make sure all MCU operation in linear buffer.

[ 52.007562] kernel BUG at include/linux/skbuff.h:2313! [ 52.007578] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP [ 52.007987] pc : skb_pull+0x48/0x4c [ 52.008015] lr : mt7921_queue_rx_skb+0x494/0x890 [mt7921_common] [ 52.008361] Call trace: [ 52.008377] skb_pull+0x48/0x4c [ 52.008400] mt76s_net_worker+0x134/0x1b0 [mt76_sdio 35339a92c6eb7d4bbcc806a1d22f56365565135c] [ 52.008431] __mt76_worker_fn+0xe8/0x170 [mt76 ef716597d11a77150bc07e3fdd68eeb0f9b56917] [ 52.008449] kthread+0x148/0x3ac [ 52.008466] ret_from_fork+0x10/0x30

Signed-off-by: Lorenzo Bianconi lorenzo@kernel.org Signed-off-by: Sean Wang sean.wang@mediatek.com Signed-off-by: Deren Wu deren.wu@mediatek.com Signed-off-by: Felix Fietkau nbd@nbd.name Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/mediatek/mt76/mt76.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h index 404c3d1a70d6..368a5c6455b1 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76.h +++ b/drivers/net/wireless/mediatek/mt76/mt76.h @@ -19,7 +19,7 @@

#define MT_MCU_RING_SIZE 32 #define MT_RX_BUF_SIZE 2048 -#define MT_SKB_HEAD_LEN 128 +#define MT_SKB_HEAD_LEN 256

#define MT_MAX_NON_AQL_PKT 16 #define MT_TXQ_FREE_THR 32

From: Arnd Bergmann arnd@arndb.de

[ Upstream commit 066291bec0c55315e568ead501bebdefcb8453d2 ]

Building iwlmei without CONFIG_CFG80211 causes a link-time warning:

ld.lld: error: undefined symbol: ieee80211_hdrlen

...

...

referenced by net.c net/wireless/intel/iwlwifi/mei/net.o:(iwl_mei_tx_copy_to_csme) in archive drivers/built-in.a

Add an explicit dependency to avoid this. In theory it should not be needed here, but it also seems pointless to allow IWLMEI for configurations without CFG80211.

Signed-off-by: Arnd Bergmann arnd@arndb.de Acked-by: Emmanuel Grumbach Emmanuel.grumbach@intel.com Acked-by: Luca Coelho luciano.coelho@intel.com Signed-off-by: Kalle Valo kvalo@kernel.org Link: https://lore.kernel.org/r/20220316183617.1470631-1-arnd@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/intel/iwlwifi/Kconfig | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/Kconfig b/drivers/net/wireless/intel/iwlwifi/Kconfig index 85e704283755..a647a406b87b 100644 --- a/drivers/net/wireless/intel/iwlwifi/Kconfig +++ b/drivers/net/wireless/intel/iwlwifi/Kconfig @@ -139,6 +139,7 @@ config IWLMEI tristate "Intel Management Engine communication over WLAN" depends on INTEL_MEI depends on PM + depends on CFG80211 help Enables the iwlmei kernel module.

From: Luiz Augusto von Dentz luiz.von.dentz@intel.com

[ Upstream commit f63d24baff787e13b723d86fe036f84bdbc35045 ]

This fixes the following trace caused by receiving HCI_EV_DISCONN_PHY_LINK_COMPLETE which does call hci_conn_del without first checking if conn->type is in fact AMP_LINK and in case it is do properly cleanup upper layers with hci_disconn_cfm:

================================================================== BUG: KASAN: use-after-free in hci_send_acl+0xaba/0xc50 Read of size 8 at addr ffff88800e404818 by task bluetoothd/142

CPU: 0 PID: 142 Comm: bluetoothd Not tainted 5.17.0-rc5-00006-gda4022eeac1a #7 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x45/0x59 print_address_description.constprop.0+0x1f/0x150 kasan_report.cold+0x7f/0x11b hci_send_acl+0xaba/0xc50 l2cap_do_send+0x23f/0x3d0 l2cap_chan_send+0xc06/0x2cc0 l2cap_sock_sendmsg+0x201/0x2b0 sock_sendmsg+0xdc/0x110 sock_write_iter+0x20f/0x370 do_iter_readv_writev+0x343/0x690 do_iter_write+0x132/0x640 vfs_writev+0x198/0x570 do_writev+0x202/0x280 do_syscall_64+0x38/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RSP: 002b:00007ffce8a099b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 Code: 0f 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 14 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 RDX: 0000000000000001 RSI: 00007ffce8a099e0 RDI: 0000000000000015 RAX: ffffffffffffffda RBX: 00007ffce8a099e0 RCX: 00007f788fc3cf77 R10: 00007ffce8af7080 R11: 0000000000000246 R12: 000055e4ccf75580 RBP: 0000000000000015 R08: 0000000000000002 R09: 0000000000000001 </TASK> R13: 000055e4ccf754a0 R14: 000055e4ccf75cd0 R15: 000055e4ccf4a6b0

Allocated by task 45: kasan_save_stack+0x1e/0x40 __kasan_kmalloc+0x81/0xa0 hci_chan_create+0x9a/0x2f0 l2cap_conn_add.part.0+0x1a/0xdc0 l2cap_connect_cfm+0x236/0x1000 le_conn_complete_evt+0x15a7/0x1db0 hci_le_conn_complete_evt+0x226/0x2c0 hci_le_meta_evt+0x247/0x450 hci_event_packet+0x61b/0xe90 hci_rx_work+0x4d5/0xc50 process_one_work+0x8fb/0x15a0 worker_thread+0x576/0x1240 kthread+0x29d/0x340 ret_from_fork+0x1f/0x30

Freed by task 45: kasan_save_stack+0x1e/0x40 kasan_set_track+0x21/0x30 kasan_set_free_info+0x20/0x30 __kasan_slab_free+0xfb/0x130 kfree+0xac/0x350 hci_conn_cleanup+0x101/0x6a0 hci_conn_del+0x27e/0x6c0 hci_disconn_phylink_complete_evt+0xe0/0x120 hci_event_packet+0x812/0xe90 hci_rx_work+0x4d5/0xc50 process_one_work+0x8fb/0x15a0 worker_thread+0x576/0x1240 kthread+0x29d/0x340 ret_from_fork+0x1f/0x30

The buggy address belongs to the object at ffff88800c0f0500 The buggy address is located 24 bytes inside of which belongs to the cache kmalloc-128 of size 128 The buggy address belongs to the page: 128-byte region [ffff88800c0f0500, ffff88800c0f0580) flags: 0x100000000000200(slab|node=0|zone=1) page:00000000fe45cd86 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xc0f0 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 raw: 0100000000000200 ffffea00003a2c80 dead000000000004 ffff8880078418c0 page dumped because: kasan: bad access detected ffff88800c0f0400: 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc Memory state around the buggy address: >ffff88800c0f0500: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88800c0f0480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88800c0f0580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ================================================================== ffff88800c0f0600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb

Reported-by: Sönke Huster soenke.huster@eknoes.de Tested-by: Sönke Huster soenke.huster@eknoes.de Signed-off-by: Luiz Augusto von Dentz luiz.von.dentz@intel.com Signed-off-by: Marcel Holtmann marcel@holtmann.org Signed-off-by: Sasha Levin sashal@kernel.org --- net/bluetooth/hci_event.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 4d45fd4b8ccd..efed879c3e30 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -5453,8 +5453,9 @@ static void hci_disconn_phylink_complete_evt(struct hci_dev *hdev, void *data, hci_dev_lock(hdev);

hcon = hci_conn_hash_lookup_handle(hdev, ev->phy_handle); - if (hcon) { + if (hcon && hcon->type == AMP_LINK) { hcon->state = BT_CLOSED; + hci_disconn_cfm(hcon, ev->reason); hci_conn_del(hcon); }

From: Wang Yufen wangyufen@huawei.com

[ Upstream commit f22881de730ebd472e15bcc2c0d1d46e36a87b9c ]

In calipso_map_cat_ntoh(), in the for loop, if the return value of netlbl_bitmap_walk() is equal to (net_clen_bits - 1), when netlbl_bitmap_walk() is called next time, out-of-bounds memory accesses of bitmap[byte_offset] occurs.

The bug was found during fuzzing. The following is the fuzzing report BUG: KASAN: slab-out-of-bounds in netlbl_bitmap_walk+0x3c/0xd0 Read of size 1 at addr ffffff8107bf6f70 by task err_OH/252

CPU: 7 PID: 252 Comm: err_OH Not tainted 5.17.0-rc7+ #17 Hardware name: linux,dummy-virt (DT) Call trace: dump_backtrace+0x21c/0x230 show_stack+0x1c/0x60 dump_stack_lvl+0x64/0x7c print_address_description.constprop.0+0x70/0x2d0 __kasan_report+0x158/0x16c kasan_report+0x74/0x120 __asan_load1+0x80/0xa0 netlbl_bitmap_walk+0x3c/0xd0 calipso_opt_getattr+0x1a8/0x230 calipso_sock_getattr+0x218/0x340 calipso_sock_getattr+0x44/0x60 netlbl_sock_getattr+0x44/0x80 selinux_netlbl_socket_setsockopt+0x138/0x170 selinux_socket_setsockopt+0x4c/0x60 security_socket_setsockopt+0x4c/0x90 __sys_setsockopt+0xbc/0x2b0 __arm64_sys_setsockopt+0x6c/0x84 invoke_syscall+0x64/0x190 el0_svc_common.constprop.0+0x88/0x200 do_el0_svc+0x88/0xa0 el0_svc+0x128/0x1b0 el0t_64_sync_handler+0x9c/0x120 el0t_64_sync+0x16c/0x170

Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: Wang Yufen wangyufen@huawei.com Acked-by: Paul Moore paul@paul-moore.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- net/netlabel/netlabel_kapi.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/net/netlabel/netlabel_kapi.c b/net/netlabel/netlabel_kapi.c index beb0e573266d..54c083003947 100644 --- a/net/netlabel/netlabel_kapi.c +++ b/net/netlabel/netlabel_kapi.c @@ -885,6 +885,8 @@ int netlbl_bitmap_walk(const unsigned char *bitmap, u32 bitmap_len, unsigned char bitmask; unsigned char byte;

+ if (offset >= bitmap_len) + return -1; byte_offset = offset / 8; byte = bitmap[byte_offset]; bit_spot = offset;

From: Xiubo Li xiubli@redhat.com

[ Upstream commit f639d9867eea647005dc824e0e24f39ffc50d4e4 ]

Reset the last_readdir at the same time, and add a comment explaining why we don't free last_readdir when dir_emit returns false.

Signed-off-by: Xiubo Li xiubli@redhat.com Reviewed-by: Jeff Layton jlayton@kernel.org Signed-off-by: Ilya Dryomov idryomov@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/ceph/dir.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index 133dbd9338e7..d91fa53e12b3 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -478,8 +478,11 @@ static int ceph_readdir(struct file *file, struct dir_context *ctx) 2 : (fpos_off(rde->offset) + 1); err = note_last_dentry(dfi, rde->name, rde->name_len, next_offset); - if (err) + if (err) { + ceph_mdsc_put_request(dfi->last_readdir); + dfi->last_readdir = NULL; return err; + } } else if (req->r_reply_info.dir_end) { dfi->next_offset = 2; /* keep last name */ @@ -520,6 +523,12 @@ static int ceph_readdir(struct file *file, struct dir_context *ctx) if (!dir_emit(ctx, rde->name, rde->name_len, ceph_present_ino(inode->i_sb, le64_to_cpu(rde->inode.in->ino)), le32_to_cpu(rde->inode.in->mode) >> 12)) { + /* + * NOTE: Here no need to put the 'dfi->last_readdir', + * because when dir_emit stops us it's most likely + * doesn't have enough memory, etc. So for next readdir + * it will continue. + */ dout("filldir stopping us...\n"); return 0; }

From: Randy Dunlap rdunlap@infradead.org

[ Upstream commit f9a40b0890658330c83c95511f9d6b396610defc ]

initcall_blacklist() should return 1 to indicate that it handled its cmdline arguments.

set_debug_rodata() should return 1 to indicate that it handled its cmdline arguments. Print a warning if the option string is invalid.

This prevents these strings from being added to the 'init' program's environment as they are not init arguments/parameters.

Link: https://lkml.kernel.org/r/20220221050901.23985-1-rdunlap@infradead.org Signed-off-by: Randy Dunlap rdunlap@infradead.org Reported-by: Igor Zhbanov i.zhbanov@omprussia.ru Cc: Ingo Molnar mingo@kernel.org Cc: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Linus Torvalds torvalds@linux-foundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- init/main.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/init/main.c b/init/main.c index ada50f5a15e4..9a5097b2251a 100644 --- a/init/main.c +++ b/init/main.c @@ -1192,7 +1192,7 @@ static int __init initcall_blacklist(char *str) } } while (str_entry);

- return 0; + return 1; }

static bool __init_or_module initcall_blacklisted(initcall_t fn) @@ -1454,7 +1454,9 @@ static noinline void __init kernel_init_freeable(void); bool rodata_enabled __ro_after_init = true; static int __init set_debug_rodata(char *str) { - return strtobool(str, &rodata_enabled); + if (strtobool(str, &rodata_enabled)) + pr_warn("Invalid option string for rodata: '%s'\n", str); + return 1; } __setup("rodata=", set_debug_rodata); #endif