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| author |   Julien Thierry <julien.thierry@arm.com> | 2019-06-11 10:38:07 +0100 |
|---|---|---|
| committer |   Catalin Marinas <catalin.marinas@arm.com> | 2019-06-21 11:19:16 +0100 |
| commit | 19c36b185a1d13f79f3a382e08695a2633155e5a (patch) | |
| tree | d4205e732167bf368a34620f146ab59566162ae9 | |
| parent | arm64: Do not enable IRQs for ct_user_exit (diff) | |
| download | linux-dev-19c36b185a1d13f79f3a382e08695a2633155e5a.tar.xz linux-dev-19c36b185a1d13f79f3a382e08695a2633155e5a.zip | |
arm64: irqflags: Pass flags as readonly operand to restore instruction
Flags are only read by the instructions doing the irqflags restore
operation. Pass the operand as read only to the asm inline instead of
read-write.
Cc: Will Deacon <will.deacon@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Mark Rutland <mark.rutland@ar.com>
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
| -rw-r--r-- | arch/arm64/include/asm/irqflags.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/irqflags.h b/arch/arm64/include/asm/irqflags.h index 629963189085..9c93152c9af7 100644 --- a/arch/arm64/include/asm/irqflags.h +++ b/arch/arm64/include/asm/irqflags.h @@ -119,8 +119,8 @@ static inline void arch_local_irq_restore(unsigned long flags) __msr_s(SYS_ICC_PMR_EL1, "%0") "dsb sy", ARM64_HAS_IRQ_PRIO_MASKING) - : "+r" (flags) : + : "r" (flags) : "memory"); } |