Commit 19c36b18 authored Jun 11, 2019 by Julien Thierry Committed by Catalin Marinas Jun 21, 2019

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>

parent 9034f625

arch/arm64/include/asm/irqflags.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -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");
		}