[PATCH AUTOSEL 5.4 01/11] wifi: mac80211: fix memory free error when registering wiphy fail
From: taozhang taozhang@bestechnic.com
[ Upstream commit 50b2e8711462409cd368c41067405aa446dfa2af ]
ieee80211_register_hw free the allocated cipher suites when registering wiphy fail, and ieee80211_free_hw will re-free it.
set wiphy_ciphers_allocated to false after freeing allocated cipher suites.
Signed-off-by: taozhang taozhang@bestechnic.com Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- net/mac80211/main.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/net/mac80211/main.c b/net/mac80211/main.c index f215218a88c9..fa2ac02063cf 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -1315,8 +1315,10 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) ieee80211_led_exit(local); destroy_workqueue(local->workqueue); fail_workqueue: - if (local->wiphy_ciphers_allocated) + if (local->wiphy_ciphers_allocated) { kfree(local->hw.wiphy->cipher_suites); + local->wiphy_ciphers_allocated = false; + } kfree(local->int_scan_req); return result; } @@ -1386,8 +1388,10 @@ void ieee80211_free_hw(struct ieee80211_hw *hw) mutex_destroy(&local->iflist_mtx); mutex_destroy(&local->mtx);
- if (local->wiphy_ciphers_allocated) + if (local->wiphy_ciphers_allocated) { kfree(local->hw.wiphy->cipher_suites); + local->wiphy_ciphers_allocated = false; + }
idr_for_each(&local->ack_status_frames, ieee80211_free_ack_frame, NULL);
From: Jonas Jelonek jelonek.jonas@gmail.com
[ Upstream commit 69188df5f6e4cecc6b76b958979ba363cd5240e8 ]
Fixes a warning that occurs when rc table support is enabled (IEEE80211_HW_SUPPORTS_RC_TABLE) in mac80211_hwsim and the PS mode is changed via the exported debugfs attribute.
When the PS mode is changed, a packet is broadcasted via hwsim_send_nullfunc by creating and transmitting a plain skb with only header initialized. The ieee80211 rate array in the control buffer is zero-initialized. When ratetbl support is enabled, ieee80211_get_tx_rates is called for the skb with sta parameter set to NULL and thus no ratetbl can be used. The final rate array then looks like [-1,0; 0,0; 0,0; 0,0] which causes the warning in ieee80211_get_tx_rate.
The issue is fixed by setting the count of the first rate with idx '0' to 1 and hence ieee80211_get_tx_rates won't overwrite it with idx '-1'.
Signed-off-by: Jonas Jelonek jelonek.jonas@gmail.com Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/mac80211_hwsim.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 3a3a5a570694..f80b1d57d6c3 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -663,6 +663,7 @@ static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac, struct hwsim_vif_priv *vp = (void *)vif->drv_priv; struct sk_buff *skb; struct ieee80211_hdr *hdr; + struct ieee80211_tx_info *cb;
if (!vp->assoc) return; @@ -684,6 +685,10 @@ static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac, memcpy(hdr->addr2, mac, ETH_ALEN); memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
+ cb = IEEE80211_SKB_CB(skb); + cb->control.rates[0].count = 1; + cb->control.rates[1].idx = -1; + rcu_read_lock(); mac80211_hwsim_tx_frame(data->hw, skb, rcu_dereference(vif->chanctx_conf)->def.chan);
From: Gaosheng Cui cuigaosheng1@huawei.com
[ Upstream commit 986d93f55bdeab1cac858d1e47b41fac10b2d7f6 ]
Shifting signed 32-bit value by 31 bits is undefined, so changing significant bit to unsigned. The UBSAN warning calltrace like below:
UBSAN: shift-out-of-bounds in kernel/auditfilter.c:179:23 left shift of 1 by 31 places cannot be represented in type 'int' Call Trace: <TASK> dump_stack_lvl+0x7d/0xa5 dump_stack+0x15/0x1b ubsan_epilogue+0xe/0x4e __ubsan_handle_shift_out_of_bounds+0x1e7/0x20c audit_register_class+0x9d/0x137 audit_classes_init+0x4d/0xb8 do_one_initcall+0x76/0x430 kernel_init_freeable+0x3b3/0x422 kernel_init+0x24/0x1e0 ret_from_fork+0x1f/0x30 </TASK>
Signed-off-by: Gaosheng Cui cuigaosheng1@huawei.com [PM: remove bad 'Fixes' tag as issue predates git, added in v2.6.6-rc1] Signed-off-by: Paul Moore paul@paul-moore.com Signed-off-by: Sasha Levin sashal@kernel.org --- include/uapi/linux/audit.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h index c89c6495983d..a79f8c285a10 100644 --- a/include/uapi/linux/audit.h +++ b/include/uapi/linux/audit.h @@ -179,7 +179,7 @@ #define AUDIT_MAX_KEY_LEN 256 #define AUDIT_BITMASK_SIZE 64 #define AUDIT_WORD(nr) ((__u32)((nr)/32)) -#define AUDIT_BIT(nr) (1 << ((nr) - AUDIT_WORD(nr)*32)) +#define AUDIT_BIT(nr) (1U << ((nr) - AUDIT_WORD(nr)*32))
#define AUDIT_SYSCALL_CLASSES 16 #define AUDIT_CLASS_DIR_WRITE 0
From: Nicolas Cavallari nicolas.cavallari@green-communications.fr
[ Upstream commit 39e7b5de9853bd92ddbfa4b14165babacd7da0ba ]
When trying to transmit an data frame with tx_status to a destination that have no route in the mesh, then it is dropped without recrediting the ack_status_frames idr.
Once it is exhausted, wpa_supplicant starts failing to do SAE with NL80211_CMD_FRAME and logs "nl80211: Frame command failed".
Use ieee80211_free_txskb() instead of kfree_skb() to fix it.
Signed-off-by: Nicolas Cavallari nicolas.cavallari@green-communications.fr Link: https://lore.kernel.org/r/20221027140133.1504-1-nicolas.cavallari@green-comm... Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Sasha Levin sashal@kernel.org --- net/mac80211/mesh_pathtbl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c index d7ae7415d54d..80a83d0d9550 100644 --- a/net/mac80211/mesh_pathtbl.c +++ b/net/mac80211/mesh_pathtbl.c @@ -720,7 +720,7 @@ int mesh_path_send_to_gates(struct mesh_path *mpath) void mesh_path_discard_frame(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { - kfree_skb(skb); + ieee80211_free_txskb(&sdata->local->hw, skb); sdata->u.mesh.mshstats.dropped_frames_no_route++; }
From: Sean Nyekjaer sean@geanix.com
[ Upstream commit 62aa1a344b0904549f6de7af958e8a1136fd5228 ]
When this driver is used with a driver that uses preallocated spi_transfer structs. The speed_hz is halved by every run. This results in:
spi_stm32 44004000.spi: SPI transfer setup failed ads7846 spi0.0: SPI transfer failed: -22
Example when running with DIV_ROUND_UP(): - First run; speed_hz = 1000000, spi->clk_rate 125000000 div 125 -> mbrdiv = 7, cur_speed = 976562 - Second run; speed_hz = 976562 div 128,00007 (roundup to 129) -> mbrdiv = 8, cur_speed = 488281 - Third run; speed_hz = 488281 div 256,000131072067109 (roundup to 257) and then -EINVAL is returned.
Use DIV_ROUND_CLOSEST to allow to round down and allow us to keep the set speed.
Signed-off-by: Sean Nyekjaer sean@geanix.com Link: https://lore.kernel.org/r/20221103080043.3033414-1-sean@geanix.com Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/spi/spi-stm32.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/spi/spi-stm32.c b/drivers/spi/spi-stm32.c index 9ae16092206d..5c0bc332eca7 100644 --- a/drivers/spi/spi-stm32.c +++ b/drivers/spi/spi-stm32.c @@ -444,7 +444,7 @@ static int stm32_spi_prepare_mbr(struct stm32_spi *spi, u32 speed_hz, u32 div, mbrdiv;
/* Ensure spi->clk_rate is even */ - div = DIV_ROUND_UP(spi->clk_rate & ~0x1, speed_hz); + div = DIV_ROUND_CLOSEST(spi->clk_rate & ~0x1, speed_hz);
/* * SPI framework set xfer->speed_hz to master->max_speed_hz if
From: Hans de Goede hdegoede@redhat.com
[ Upstream commit f46acc1efd4b5846de9fa05f966e504f328f34a6 ]
The Dell G15 5515 has the WMI interface (and WMI call returns) expected by the nvidia-wmi-ec-backlight interface. But the backlight class device registered by the nvidia-wmi-ec-backlight driver does not actually work.
The amdgpu_bl0 native GPU backlight class device does actually work, add a backlight=native DMI quirk for this.
Reported-by: Iris pawel.js@protonmail.com Reviewed-by: Daniel Dadap ddadap@nvidia.com Signed-off-by: Hans de Goede hdegoede@redhat.com --- Changes in v2: - Add a comment that this needs to be revisited when dynamic-mux support gets added (suggested by: Daniel Dadap) Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/acpi/video_detect.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index e5518b88f710..f514b16a5c23 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -527,6 +527,20 @@ static const struct dmi_system_id video_detect_dmi_table[] = { DMI_MATCH(DMI_BOARD_NAME, "GMxRGxx"), }, }, + /* + * Models which have nvidia-ec-wmi support, but should not use it. + * Note this indicates a likely firmware bug on these models and should + * be revisited if/when Linux gets support for dynamic mux mode. + */ + { + .callback = video_detect_force_native, + /* Dell G15 5515 */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Dell G15 5515"), + }, + }, + /* * Desktops which falsely report a backlight and which our heuristics * for this do not catch.
From: Hans de Goede hdegoede@redhat.com
[ Upstream commit 653f2d94fcda200b02bd79cea2e0307b26c1b747 ]
Like the Acer Switch One 10 S1003, for which there already is a quirk, the Acer Switch V 10 (SW5-017) has a 800x1280 portrait screen mounted in the tablet part of a landscape oriented 2-in-1. Add a quirk for this.
Cc: Rudolf Polzer rpolzer@google.com Signed-off-by: Hans de Goede hdegoede@redhat.com Acked-by: Simon Ser contact@emersion.fr Link: https://patchwork.freedesktop.org/patch/msgid/20221106215052.66995-1-hdegoed... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/drm_panel_orientation_quirks.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c b/drivers/gpu/drm/drm_panel_orientation_quirks.c index 083273736c83..ca0fefeaab20 100644 --- a/drivers/gpu/drm/drm_panel_orientation_quirks.c +++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c @@ -128,6 +128,12 @@ static const struct dmi_system_id orientation_data[] = { DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"), }, .driver_data = (void *)&lcd800x1280_rightside_up, + }, { /* Acer Switch V 10 (SW5-017) */ + .matches = { + DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"), + DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SW5-017"), + }, + .driver_data = (void *)&lcd800x1280_rightside_up, }, { /* Anbernic Win600 */ .matches = { DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Anbernic"),
From: Yu Kuai yukuai3@huawei.com
[ Upstream commit f02be9002c480cd3ec0fcf184ad27cf531bd6ece ]
Out test found a following problem in kernel 5.10, and the same problem should exist in mainline:
BUG: kernel NULL pointer dereference, address: 0000000000000094 PGD 0 P4D 0 Oops: 0000 [#1] SMP CPU: 7 PID: 155 Comm: kworker/7:1 Not tainted 5.10.0-01932-g19e0ace2ca1d-dirty 4 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-b4 Workqueue: kthrotld blk_throtl_dispatch_work_fn RIP: 0010:bfq_bio_bfqg+0x52/0xc0 Code: 94 00 00 00 00 75 2e 48 8b 40 30 48 83 05 35 06 c8 0b 01 48 85 c0 74 3d 4b RSP: 0018:ffffc90001a1fba0 EFLAGS: 00010002 RAX: ffff888100d60400 RBX: ffff8881132e7000 RCX: 0000000000000000 RDX: 0000000000000017 RSI: ffff888103580a18 RDI: ffff888103580a18 RBP: ffff8881132e7000 R08: 0000000000000000 R09: ffffc90001a1fe10 R10: 0000000000000a20 R11: 0000000000034320 R12: 0000000000000000 R13: ffff888103580a18 R14: ffff888114447000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88881fdc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000094 CR3: 0000000100cdb000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bfq_bic_update_cgroup+0x3c/0x350 ? ioc_create_icq+0x42/0x270 bfq_init_rq+0xfd/0x1060 bfq_insert_requests+0x20f/0x1cc0 ? ioc_create_icq+0x122/0x270 blk_mq_sched_insert_requests+0x86/0x1d0 blk_mq_flush_plug_list+0x193/0x2a0 blk_flush_plug_list+0x127/0x170 blk_finish_plug+0x31/0x50 blk_throtl_dispatch_work_fn+0x151/0x190 process_one_work+0x27c/0x5f0 worker_thread+0x28b/0x6b0 ? rescuer_thread+0x590/0x590 kthread+0x153/0x1b0 ? kthread_flush_work+0x170/0x170 ret_from_fork+0x1f/0x30 Modules linked in: CR2: 0000000000000094 ---[ end trace e2e59ac014314547 ]--- RIP: 0010:bfq_bio_bfqg+0x52/0xc0 Code: 94 00 00 00 00 75 2e 48 8b 40 30 48 83 05 35 06 c8 0b 01 48 85 c0 74 3d 4b RSP: 0018:ffffc90001a1fba0 EFLAGS: 00010002 RAX: ffff888100d60400 RBX: ffff8881132e7000 RCX: 0000000000000000 RDX: 0000000000000017 RSI: ffff888103580a18 RDI: ffff888103580a18 RBP: ffff8881132e7000 R08: 0000000000000000 R09: ffffc90001a1fe10 R10: 0000000000000a20 R11: 0000000000034320 R12: 0000000000000000 R13: ffff888103580a18 R14: ffff888114447000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88881fdc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000094 CR3: 0000000100cdb000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Root cause is quite complex:
1) use bfq elevator for the test device. 2) create a cgroup CG 3) config blk throtl in CG
blkg_conf_prep blkg_create
4) create a thread T1 and issue async io in CG:
bio_init bio_associate_blkg ... submit_bio submit_bio_noacct blk_throtl_bio -> io is throttled // io submit is done
5) switch elevator:
bfq_exit_queue blkcg_deactivate_policy list_for_each_entry(blkg, &q->blkg_list, q_node) blkg->pd[] = NULL // bfq policy is removed
5) thread t1 exist, then remove the cgroup CG:
blkcg_unpin_online blkcg_destroy_blkgs blkg_destroy list_del_init(&blkg->q_node) // blkg is removed from queue list
6) switch elevator back to bfq
bfq_init_queue bfq_create_group_hierarchy blkcg_activate_policy list_for_each_entry_reverse(blkg, &q->blkg_list) // blkg is removed from list, hence bfq policy is still NULL
7) throttled io is dispatched to bfq:
bfq_insert_requests bfq_init_rq bfq_bic_update_cgroup bfq_bio_bfqg bfqg = blkg_to_bfqg(blkg) // bfqg is NULL because bfq policy is NULL
The problem is only possible in bfq because only bfq can be deactivated and activated while queue is online, while others can only be deactivated while the device is removed.
Fix the problem in bfq by checking if blkg is online before calling blkg_to_bfqg().
Signed-off-by: Yu Kuai yukuai3@huawei.com Reviewed-by: Jan Kara jack@suse.cz Link: https://lore.kernel.org/r/20221108103434.2853269-1-yukuai1@huaweicloud.com Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Sasha Levin sashal@kernel.org --- block/bfq-cgroup.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c index 09d721b1f6ac..59fd1b10b5f3 100644 --- a/block/bfq-cgroup.c +++ b/block/bfq-cgroup.c @@ -594,6 +594,10 @@ struct bfq_group *bfq_bio_bfqg(struct bfq_data *bfqd, struct bio *bio) struct bfq_group *bfqg;
while (blkg) { + if (!blkg->online) { + blkg = blkg->parent; + continue; + } bfqg = blkg_to_bfqg(blkg); if (bfqg->online) { bio_associate_blkg_from_css(bio, &blkg->blkcg->css);
From: Kuniyuki Iwashima kuniyu@amazon.com
[ Upstream commit acfc35cfcee5df419391671ef1a631f43feee4e3 ]
Add the same change for ARM64 as done in the commit 9440c4294160 ("x86/syscall: Include asm/ptrace.h in syscall_wrapper header") to make sure all syscalls see 'struct pt_regs' definition and resulted BTF for '__arm64_sys_*(struct pt_regs *regs)' functions point to actual struct.
Without this patch, the BPF verifier refuses to load a tracing prog which accesses pt_regs.
bpf(BPF_PROG_LOAD, {prog_type=0x1a, ...}, 128) = -1 EACCES
With this patch, we can see the correct error, which saves us time in debugging the prog.
bpf(BPF_PROG_LOAD, {prog_type=0x1a, ...}, 128) = 4 bpf(BPF_RAW_TRACEPOINT_OPEN, {raw_tracepoint={name=NULL, prog_fd=4}}, 128) = -1 ENOTSUPP
Signed-off-by: Kuniyuki Iwashima kuniyu@amazon.com Acked-by: Andrii Nakryiko andrii@kernel.org Link: https://lore.kernel.org/r/20221031215728.50389-1-kuniyu@amazon.com Signed-off-by: Catalin Marinas catalin.marinas@arm.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/include/asm/syscall_wrapper.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/include/asm/syscall_wrapper.h b/arch/arm64/include/asm/syscall_wrapper.h index 06d880b3526c..43a20888bf19 100644 --- a/arch/arm64/include/asm/syscall_wrapper.h +++ b/arch/arm64/include/asm/syscall_wrapper.h @@ -8,7 +8,7 @@ #ifndef __ASM_SYSCALL_WRAPPER_H #define __ASM_SYSCALL_WRAPPER_H
-struct pt_regs; +#include <asm/ptrace.h>
#define SC_ARM64_REGS_TO_ARGS(x, ...) \ __MAP(x,__SC_ARGS \
From: Nathan Chancellor nathan@kernel.org
[ Upstream commit fcae44fd36d052e956e69a64642fc03820968d78 ]
Recently, ld.lld moved from '--undefined-version' to '--no-undefined-version' as the default, which breaks the compat vDSO build:
ld.lld: error: version script assignment of 'LINUX_4.15' to symbol '__vdso_gettimeofday' failed: symbol not defined ld.lld: error: version script assignment of 'LINUX_4.15' to symbol '__vdso_clock_gettime' failed: symbol not defined ld.lld: error: version script assignment of 'LINUX_4.15' to symbol '__vdso_clock_getres' failed: symbol not defined
These symbols are not present in the compat vDSO or the regular vDSO for 32-bit but they are unconditionally included in the version section of the linker script, which is prohibited with '--no-undefined-version'.
Fix this issue by only including the symbols that are actually exported in the version section of the linker script.
Link: https://github.com/ClangBuiltLinux/linux/issues/1756 Signed-off-by: Nathan Chancellor nathan@kernel.org Tested-by: Conor Dooley conor.dooley@microchip.com Link: https://lore.kernel.org/r/20221108171324.3377226-1-nathan@kernel.org/ Signed-off-by: Palmer Dabbelt palmer@rivosinc.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/riscv/kernel/vdso/Makefile | 3 +++ arch/riscv/kernel/vdso/vdso.lds.S | 2 ++ 2 files changed, 5 insertions(+)
diff --git a/arch/riscv/kernel/vdso/Makefile b/arch/riscv/kernel/vdso/Makefile index a4ee3a0e7d20..c533ac869aa2 100644 --- a/arch/riscv/kernel/vdso/Makefile +++ b/arch/riscv/kernel/vdso/Makefile @@ -20,6 +20,9 @@ obj-vdso := $(addprefix $(obj)/, $(obj-vdso))
obj-y += vdso.o vdso-syms.o CPPFLAGS_vdso.lds += -P -C -U$(ARCH) +ifneq ($(filter vgettimeofday, $(vdso-syms)),) +CPPFLAGS_vdso.lds += -DHAS_VGETTIMEOFDAY +endif
# Disable gcov profiling for VDSO code GCOV_PROFILE := n diff --git a/arch/riscv/kernel/vdso/vdso.lds.S b/arch/riscv/kernel/vdso/vdso.lds.S index f66a091cb890..4c45adf23259 100644 --- a/arch/riscv/kernel/vdso/vdso.lds.S +++ b/arch/riscv/kernel/vdso/vdso.lds.S @@ -62,9 +62,11 @@ VERSION LINUX_4.15 { global: __vdso_rt_sigreturn; +#ifdef HAS_VGETTIMEOFDAY __vdso_gettimeofday; __vdso_clock_gettime; __vdso_clock_getres; +#endif __vdso_getcpu; __vdso_flush_icache; local: *;
From: "Jason A. Donenfeld" Jason@zx2c4.com
[ Upstream commit 648060902aa302331b5d6e4f26d8ee0761d239ab ]
get_port_from_cmdline() returns an int, yet is assigned to a char, which is wrong in its own right, but also, with char becoming unsigned, this poses problems, because -1 is used as an error value. Further complicating things, fw_init_early_console() is only ever called with a -1 argument. Fix this up by removing the unused argument from fw_init_early_console() and treating port as a proper signed integer.
Cc: Thomas Bogendoerfer tsbogend@alpha.franken.de Signed-off-by: Jason A. Donenfeld Jason@zx2c4.com Signed-off-by: Thomas Bogendoerfer tsbogend@alpha.franken.de Signed-off-by: Sasha Levin sashal@kernel.org --- arch/mips/include/asm/fw/fw.h | 2 +- arch/mips/pic32/pic32mzda/early_console.c | 13 ++++++------- arch/mips/pic32/pic32mzda/init.c | 2 +- 3 files changed, 8 insertions(+), 9 deletions(-)
diff --git a/arch/mips/include/asm/fw/fw.h b/arch/mips/include/asm/fw/fw.h index d0ef8b4892bb..d0494ce4b337 100644 --- a/arch/mips/include/asm/fw/fw.h +++ b/arch/mips/include/asm/fw/fw.h @@ -26,6 +26,6 @@ extern char *fw_getcmdline(void); extern void fw_meminit(void); extern char *fw_getenv(char *name); extern unsigned long fw_getenvl(char *name); -extern void fw_init_early_console(char port); +extern void fw_init_early_console(void);
#endif /* __ASM_FW_H_ */ diff --git a/arch/mips/pic32/pic32mzda/early_console.c b/arch/mips/pic32/pic32mzda/early_console.c index 8c236738b5ee..5d48408f84b1 100644 --- a/arch/mips/pic32/pic32mzda/early_console.c +++ b/arch/mips/pic32/pic32mzda/early_console.c @@ -27,7 +27,7 @@ #define U_BRG(x) (UART_BASE(x) + 0x40)
static void __iomem *uart_base; -static char console_port = -1; +static int console_port = -1;
static int __init configure_uart_pins(int port) { @@ -47,7 +47,7 @@ static int __init configure_uart_pins(int port) return 0; }
-static void __init configure_uart(char port, int baud) +static void __init configure_uart(int port, int baud) { u32 pbclk;
@@ -60,7 +60,7 @@ static void __init configure_uart(char port, int baud) uart_base + PIC32_SET(U_STA(port))); }
-static void __init setup_early_console(char port, int baud) +static void __init setup_early_console(int port, int baud) { if (configure_uart_pins(port)) return; @@ -130,16 +130,15 @@ static int __init get_baud_from_cmdline(char *arch_cmdline) return baud; }
-void __init fw_init_early_console(char port) +void __init fw_init_early_console(void) { char *arch_cmdline = pic32_getcmdline(); - int baud = -1; + int baud, port;
uart_base = ioremap_nocache(PIC32_BASE_UART, 0xc00);
baud = get_baud_from_cmdline(arch_cmdline); - if (port == -1) - port = get_port_from_cmdline(arch_cmdline); + port = get_port_from_cmdline(arch_cmdline);
if (port == -1) port = EARLY_CONSOLE_PORT; diff --git a/arch/mips/pic32/pic32mzda/init.c b/arch/mips/pic32/pic32mzda/init.c index f232c77ff526..488c0bee7ebf 100644 --- a/arch/mips/pic32/pic32mzda/init.c +++ b/arch/mips/pic32/pic32mzda/init.c @@ -60,7 +60,7 @@ void __init plat_mem_setup(void) strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
#ifdef CONFIG_EARLY_PRINTK - fw_init_early_console(-1); + fw_init_early_console(); #endif pic32_config_init(); }
linux-stable-mirror@lists.linaro.org
-
Sasha Levin