Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
soc: samsung: exynos-pmu: Annotate online/offline functions with __must_hold
Annotate functions writing to PMU registers to online and offline CPUs
as __must_hold() the necessary spinlock for code correctness. These are
static functions so possibility of mistakes is low here, but
__must_hold() serves as self-documenting code.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
+2
+2
drivers/soc/samsung/exynos-pmu.c
+2
drivers/soc/samsung/exynos-pmu.c
···
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* disabled and cpupm_lock held.
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*/
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static int __gs101_cpu_pmu_online(unsigned int cpu)
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+
__must_hold(&pmu_context->cpupm_lock)
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{
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unsigned int cpuhint = smp_processor_id();
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u32 reg, mask;
···
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/* Common function shared by both CPU hot plug and CPUIdle */
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static int __gs101_cpu_pmu_offline(unsigned int cpu)
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+
__must_hold(&pmu_context->cpupm_lock)
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{
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unsigned int cpuhint = smp_processor_id();
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u32 reg, mask;