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Commit 6fe5f5f3 authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt
Browse files

powerpc: Fix WARN_ON in decrementer_check_overflow 



We use __get_cpu_var() which triggers a false positive warning
in smp_processor_id() thinking interrupts are enabled (at this
point, they are soft-enabled but hard-disabled).

Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 7a768d30

arch/powerpc/kernel/irq.c

+5 −1
Original line number Diff line number Diff line
@@ -118,10 +118,14 @@ static inline notrace void set_soft_enabled(unsigned long enable) 
static inline notrace void decrementer_check_overflow(void)

{

	u64 now = get_tb_or_rtc();

	u64 *next_tb = &__get_cpu_var(decrementers_next_tb);

	u64 *next_tb;



	preempt_disable();

	next_tb = &__get_cpu_var(decrementers_next_tb);



	if (now >= *next_tb)

		set_dec(1);

	preempt_enable();

}



notrace void arch_local_irq_restore(unsigned long en)