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kernel_samsung_a53x/drivers
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Muhammad Usama Anjum c59360c266 tty/sysrq: replace smp_processor_id() with get_cpu() 
commit dd976a97d15b47656991e185a94ef42a0fa5cfd4 upstream.

The smp_processor_id() shouldn't be called from preemptible code.
Instead use get_cpu() and put_cpu() which disables preemption in
addition to getting the processor id. Enable preemption back after
calling schedule_work() to make sure that the work gets scheduled on all
cores other than the current core. We want to avoid a scenario where
current core's stack trace is printed multiple times and one core's
stack trace isn't printed because of scheduling of current task.

This fixes the following bug:

[  119.143590] sysrq: Show backtrace of all active CPUs
[  119.143902] BUG: using smp_processor_id() in preemptible [00000000] code: bash/873
[  119.144586] caller is debug_smp_processor_id+0x20/0x30
[  119.144827] CPU: 6 PID: 873 Comm: bash Not tainted 5.10.124-dirty #3
[  119.144861] Hardware name: QEMU QEMU Virtual Machine, BIOS 2023.05-1 07/22/2023
[  119.145053] Call trace:
[  119.145093]  dump_backtrace+0x0/0x1a0
[  119.145122]  show_stack+0x18/0x70
[  119.145141]  dump_stack+0xc4/0x11c
[  119.145159]  check_preemption_disabled+0x100/0x110
[  119.145175]  debug_smp_processor_id+0x20/0x30
[  119.145195]  sysrq_handle_showallcpus+0x20/0xc0
[  119.145211]  __handle_sysrq+0x8c/0x1a0
[  119.145227]  write_sysrq_trigger+0x94/0x12c
[  119.145247]  proc_reg_write+0xa8/0xe4
[  119.145266]  vfs_write+0xec/0x280
[  119.145282]  ksys_write+0x6c/0x100
[  119.145298]  __arm64_sys_write+0x20/0x30
[  119.145315]  el0_svc_common.constprop.0+0x78/0x1e4
[  119.145332]  do_el0_svc+0x24/0x8c
[  119.145348]  el0_svc+0x10/0x20
[  119.145364]  el0_sync_handler+0x134/0x140
[  119.145381]  el0_sync+0x180/0x1c0

Cc: jirislaby@kernel.org
Cc: stable@vger.kernel.org
Fixes: 47cab6a722d4 ("debug lockups: Improve lockup detection, fix generic arch fallback")
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Link: https://lore.kernel.org/r/20231009162021.3607632-1-usama.anjum@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-18 11:43:21 +01:00
..
accessibility Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
acpi ACPI: sysfs: Fix create_pnp_modalias() and create_of_modalias() 2024-11-18 11:42:50 +01:00
amba Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
android binder_alloc: Disable debug logging by default 2024-11-17 17:43:54 +01:00
ata ata: libata-eh: Fix compilation warning in ata_eh_link_report() 2024-11-08 11:26:16 +01:00
atm atm: iphase: Do PCI error checks on own line 2024-11-18 11:43:14 +01:00
auxdisplay Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
base regmap: prevent noinc writes from clobbering cache 2024-11-18 11:43:07 +01:00
battery drivers: battery_v2: sec_battery: export {CURRENT/VOLTAGE}_MAX to sysfs 2024-11-17 17:43:14 +01:00
bcma Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
block zram: use copy_page for full page copy 2024-11-17 17:41:38 +01:00
bluetooth Bluetooth: btusb: Add date->evt_skb is NULL check 2024-11-18 11:43:12 +01:00
bts Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
bus Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cdrom Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
char hwrng: geode - fix accessing registers 2024-11-18 11:43:02 +01:00
clk clk: scmi: Free scmi_clk allocated when the clocks with invalid info are skipped 2024-11-18 11:43:02 +01:00
clocksource clocksource/drivers/timer-atmel-tcb: Fix initialization on SAM9 hardware 2024-11-18 11:43:12 +01:00
connector Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
counter counter: microchip-tcb-capture: Fix the use of internal GCLK logic 2024-11-08 11:25:51 +01:00
cpufreq s5e8825: Tuning 2024-10-17 12:50:20 -03:00
cpuidle Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
crypto crypto: qat - increase size of buffers 2024-11-18 11:43:03 +01:00
dax Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dca Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
devfreq PM / devfreq: rockchip-dfi: Make pmu regmap mandatory 2024-11-18 11:42:49 +01:00
dio Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dma dmaengine: pxa_dma: Remove an erroneous BUG_ON() in pxad_free_desc() 2024-11-18 11:43:05 +01:00
dma-buf Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
edac Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
eisa Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
extcon Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fingerprint Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
firewire Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
firmware firmware: ti_sci: Mark driver as non removable 2024-11-18 11:43:02 +01:00
fpga Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fsi Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
gnss Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
gpio gpio: vf610: set value before the direction to avoid a glitch 2024-11-08 11:26:20 +01:00
gpu drm/amdgpu: fix software pci_unplug on some chips 2024-11-18 11:43:15 +01:00
greybus Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
gud Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hid HID: Add quirk for Dell Pro Wireless Keyboard and Mouse KM5221W 2024-11-18 11:43:14 +01:00
hsi Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hv Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hwmon hwmon: (coretemp) Fix potentially truncated sysfs attribute name 2024-11-18 11:42:55 +01:00
hwspinlock Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hwtracing Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
i2c i2c: sun6i-p2wi: Prevent potential division by zero 2024-11-18 11:43:14 +01:00
i3c i3c: Fix potential refcount leak in i3c_master_register_new_i3c_devs 2024-11-18 11:43:06 +01:00
ide Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
idle Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ifconn Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
iio iio: adc: xilinx-xadc: Don't clobber preset voltage/temperature thresholds 2024-11-18 10:58:32 +01:00
infiniband RDMA/hfi1: Use FIELD_GET() to extract Link Width 2024-11-18 11:43:13 +01:00
input Input: synaptics-rmi4 - fix use after free in rmi_unregister_function() 2024-11-18 11:43:07 +01:00
interconnect interconnect: qcom: sc7180: Set ACV enable_mask 2024-11-18 11:43:05 +01:00
iommu iommu/samsung: Disable fault reporting by default 2024-11-17 17:44:13 +01:00
ipack Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
irqchip irqchip/stm32-exti: add missing DT IRQ flag translation 2024-11-18 10:58:46 +01:00
isdn Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kperfmon Kperfmon: add xyunbound version 2024-06-15 16:28:49 -03:00
kq/mesh Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
leds leds: trigger: ledtrig-cpu:: Fix 'output may be truncated' issue for 'cpu' 2024-11-18 11:43:05 +01:00
lightnvm Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
macintosh Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mailbox Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mcb mcb-lpc: Reallocate memory region to avoid memory overlapping 2024-11-18 10:58:28 +01:00
md Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
media media: venus: hfi: add checks to perform sanity on queue pointers 2024-11-18 11:43:20 +01:00
memory Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
memstick Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
message Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mfd mfd: dln2: Fix double put in dln2_probe 2024-11-18 11:43:04 +01:00
misc misc: pci_endpoint_test: Add Device ID for R-Car S4-8 PCIe controller 2024-11-18 11:43:14 +01:00
mmc Revert "mmc: core: Capture correct oemid-bits for eMMC cards" 2024-11-18 11:43:11 +01:00
most Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mtd mtd: physmap-core: Restore map_rom fallback 2024-11-08 11:26:18 +01:00
muic Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mux Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
net macvlan: Don't propagate promisc change to lower dev in passthru 2024-11-18 11:43:20 +01:00
nfc drivers/nfc_logger: Fix implicit int 2024-06-15 16:28:48 -03:00
ntb Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nubus Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nvdimm nd_btt: Make BTT lanes preemptible 2024-11-18 11:43:03 +01:00
nvme nvme-rdma: do not try to stop unallocated queues 2024-11-08 11:26:19 +01:00
nvmem nvmem: imx: correct nregs for i.MX6UL 2024-11-18 10:58:31 +01:00
of Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
opp Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
oprofile Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
parisc Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
parport Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pci PCI: tegra194: Use FIELD_GET()/FIELD_PREP() with Link Width fields 2024-11-18 11:43:14 +01:00
pcmcia pcmcia: ds: fix possible name leak in error path in pcmcia_device_add() 2024-11-18 11:43:06 +01:00
perf perf/arm-cmn: Fix the unhandled overflow status of counter 4 to 7 2024-11-08 11:24:52 +01:00
phy phy: mapphone-mdm6600: Fix pinctrl_pm handling for sleep pins 2024-11-08 11:26:20 +01:00
pinctrl Revert "pinctrl: avoid unsafe code pattern in find_pinctrl()" 2024-11-08 11:26:19 +01:00
platform platform/x86: thinkpad_acpi: Add battery quirk for Thinkpad X120e 2024-11-18 11:43:12 +01:00
pnp Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
power Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
powercap Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pps Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ps3 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ptp ptp: annotate data-race around q->head and q->tail 2024-11-18 11:43:19 +01:00
pwm pwm: brcmstb: Utilize appropriate clock APIs in suspend/resume 2024-11-18 11:43:07 +01:00
rapidio Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ras Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
regulator regulator/core: Revert "fix kobject release warning and memory leak in regulator_register()" 2024-11-08 11:26:17 +01:00
remoteproc Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
reset Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
rpmsg rpmsg: Fix possible refcount leak in rpmsg_register_device_override() 2024-11-18 10:58:46 +01:00
rtc rtc: pcf85363: fix wrong mask/val parameters in regmap_update_bits call 2024-11-18 11:43:06 +01:00
s390 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
samsung Fix clang 16 errors treewide 2024-06-15 16:28:48 -03:00
sbus Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
scsi scsi: megaraid_sas: Increase register read retry rount from 3 to 30 for selected registers 2024-11-18 11:43:21 +01:00
sensorhub treewide: fix build errors 2024-06-15 16:21:17 -03:00
sensors Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sfi Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sh Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
siox Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
slimbus Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
soc soc: qcom: llcc: Handle a second device without data corruption 2024-11-18 11:43:02 +01:00
soundwire Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
spi spi: spi-zynq-qspi: add spi-mem to driver kconfig dependencies 2024-11-18 11:43:11 +01:00
spmi Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
spu_verify Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ssb Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
staging media: cedrus: Fix clock/reset sequence 2024-11-18 11:43:07 +01:00
sti Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
target Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tc Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
tee tee: amdtee: fix use-after-free vulnerability in amdtee_close_session 2024-11-08 11:25:50 +01:00
thermal thermal: core: prevent potential string overflow 2024-11-18 11:42:50 +01:00
thunderbolt thunderbolt: Workaround an IOMMU fault on certain systems with Intel Maple Ridge 2024-11-08 11:26:11 +01:00
tty tty/sysrq: replace smp_processor_id() with get_cpu() 2024-11-18 11:43:21 +01:00
uh Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
uio Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
usb usb: gadget: f_ncm: Always set current gadget in ncm_bind() 2024-11-18 11:43:14 +01:00
vdpa Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vfio Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vhost Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vibrator Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
video fbdev: fsl-diu-fb: mark wr_reg_wa() static 2024-11-18 11:43:11 +01:00
virt Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
virtio virtio-mmio: fix memory leak of vm_dev 2024-11-18 10:58:28 +01:00
vision Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vision3 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
visorbus Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vlynq Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
vme Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
w1 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
watchdog Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
xen xen/events: fix delayed eoi list handling 2024-11-18 11:43:19 +01:00
zorro Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Kconfig drivers: add stub kperfmon 2024-06-15 16:28:49 -03:00
Kconfig.variant1 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Makefile drivers: add stub kperfmon 2024-06-15 16:28:49 -03:00
Makefile.variant1 Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00