android_kernel_motorola_sm6375/drivers/clocksource
Repository files (latest commit first)
Filename Latest commit message Latest commit date
Sebastian Andrzej Siewior 0ebb19c657 clocksource/i8253: Use raw_spinlock_irqsave() in clockevent_i8253_disable()
commit 94cff94634e506a4a44684bee1875d2dbf782722 upstream.

On x86 during boot, clockevent_i8253_disable() can be invoked via
x86_late_time_init -> hpet_time_init() -> pit_timer_init() which happens
with enabled interrupts.

If some of the old i8253 hardware is actually used then lockdep will notice
that i8253_lock is used in hard interrupt context. This causes lockdep to
complain because it observed the lock being acquired with interrupts
enabled and in hard interrupt context.

Make clockevent_i8253_disable() acquire the lock with
raw_spinlock_irqsave() to cure this.

[ tglx: Massage change log and use guard() ]

Fixes: c8c4076723 ("x86/timer: Skip PIT initialization on modern chipsets")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/20250404133116.p-XRWJXf@linutronix.de
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-06-04 14:32:29 +02:00
..
acpi_pm.c
arc_timer.c
arm_arch_timer.c
arm_global_timer.c
armv7m_systick.c
asm9260_timer.c
bcm2835_timer.c
bcm_kona_timer.c
clksrc-dbx500-prcmu.c
clksrc_st_lpc.c
clps711x-timer.c
dummy_timer.c
dw_apb_timer.c
dw_apb_timer_of.c
em_sti.c
exynos_mct.c
h8300_timer8.c
h8300_timer16.c
h8300_tpu.c
hyperv_timer.c
i8253.c clocksource/i8253: Use raw_spinlock_irqsave() in clockevent_i8253_disable() 2025-06-04 14:32:29 +02:00
ingenic-timer.c
jcore-pit.c
Kconfig
Makefile
mips-gic-timer.c
mmio.c
mps2-timer.c
mxs_timer.c
nomadik-mtu.c
numachip.c
renesas-ostm.c
samsung_pwm_timer.c
scx200_hrt.c
sh_cmt.c clocksource/drivers/sh_cmt: Address race condition for clock events 2024-08-19 05:33:46 +02:00
sh_mtu2.c
sh_tmu.c
timer-armada-370-xp.c
timer-atcpit100.c
timer-atlas7.c
timer-atmel-pit.c
timer-atmel-st.c
timer-atmel-tcb.c clocksource/drivers/timer-atmel-tcb: Fix initialization on SAM9 hardware 2023-11-28 16:50:13 +00:00
timer-cadence-ttc.c
timer-cs5535.c
timer-davinci.c
timer-digicolor.c
timer-efm32.c
timer-fsl-ftm.c
timer-fttmr010.c
timer-gx6605s.c
timer-imx-gpt.c clocksource/drivers/timer-imx-gpt: Fix potential memory leak 2023-11-28 16:50:13 +00:00
timer-imx-sysctr.c
timer-imx-tpm.c clocksource/drivers/imx-tpm: Fix next event not taking effect sometime 2024-09-12 11:03:56 +02:00
timer-integrator-ap.c
timer-ixp4xx.c
timer-keystone.c
timer-lpc32xx.c
timer-mediatek.c
timer-meson6.c
timer-milbeaut.c
timer-mp-csky.c
timer-npcm7xx.c
timer-nps.c
timer-of.c clocksource/drivers/timer-of: Remove percpu irq related code 2024-09-12 11:03:56 +02:00
timer-of.h clocksource/drivers/timer-of: Remove percpu irq related code 2024-09-12 11:03:56 +02:00
timer-orion.c
timer-owl.c
timer-oxnas-rps.c
timer-pistachio.c
timer-prima2.c
timer-probe.c
timer-pxa.c
timer-qcom.c clocksource/drivers/qcom: Add missing iounmap() on errors in msm_dt_timer_init() 2024-11-08 16:20:28 +01:00
timer-rda.c
timer-riscv.c
timer-rockchip.c
timer-sp.h
timer-sp804.c
timer-sprd.c
timer-stm32.c
timer-sun4i.c
timer-sun5i.c
timer-tango-xtal.c
timer-tegra.c
timer-ti-32k.c
timer-ti-dm.c
timer-u300.c
timer-versatile.c
timer-vf-pit.c
timer-vt8500.c
timer-zevio.c