C Cheng 64a7694c85 cpuidle: Avoid potential overflow in integer multiplication ... [ Upstream commit 88390dd788 ] In detail: In C language, when you perform a multiplication operation, if both operands are of int type, the multiplication operation is performed on the int type, and then the result is converted to the target type. This means that if the product of int type multiplication exceeds the range that int type can represent, an overflow will occur even if you store the result in a variable of int64_t type. For a multiplication of two int values, it is better to use mul_u32_u32() rather than s->exit_latency_ns = s->exit_latency * NSEC_PER_USEC to avoid potential overflow happenning. Signed-off-by: C Cheng <C.Cheng@mediatek.com> Signed-off-by: Bo Ye <bo.ye@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> [ rjw: New subject ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-04-13 13:01:43 +02:00
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governors
coupled.c
cpuidle-arm.c
cpuidle-at91.c
cpuidle-big_little.c
cpuidle-calxeda.c
cpuidle-clps711x.c
cpuidle-cps.c
cpuidle-exynos.c
cpuidle-haltpoll.c
cpuidle-kirkwood.c
cpuidle-mvebu-v7.c
cpuidle-powernv.c
cpuidle-psci-domain.c	cpuidle: psci: Iterate backwards over list in psci_pd_remove()	2023-03-22 13:31:36 +01:00
cpuidle-psci.c	cpuidle: PSCI: Improve support for suspend-to-RAM for PSCI OSI mode	2022-06-09 10:22:33 +02:00
cpuidle-psci.h
cpuidle-pseries.c	powerpc/pseries: Rework lppaca_shared_proc() to avoid DEBUG_PREEMPT	2023-09-19 12:22:42 +02:00
cpuidle-qcom-spm.c
cpuidle-tegra.c
cpuidle-ux500.c
cpuidle-zynq.c
cpuidle.c
cpuidle.h
driver.c	cpuidle: Avoid potential overflow in integer multiplication	2024-04-13 13:01:43 +02:00
dt_idle_states.c	cpuidle: dt: Return the correct numbers of parsed idle states	2022-12-31 13:14:01 +01:00
dt_idle_states.h
governor.c
Kconfig
Kconfig.arm
Kconfig.mips
Kconfig.powerpc
Makefile
poll_state.c
sysfs.c	cpuidle: Fix kobject memory leaks in error paths	2021-11-18 19:16:29 +01:00