| Message ID | 1560245893-46998-3-git-send-email-julien.thierry@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | arm64: IRQ priority masking and Pseudo-NMI fixes | expand |
On Tue, Jun 11, 2019 at 10:38:07AM +0100, Julien Thierry wrote: > 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. > > Signed-off-by: Julien Thierry <julien.thierry@arm.com> > Cc: Catalin Marinas <catalin.marinas@arm.com> > Cc: Will Deacon <will.deacon@arm.com> Acked-by: Mark Rutland <mark.rutland@ar.com> Mark. > --- > arch/arm64/include/asm/irqflags.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm64/include/asm/irqflags.h b/arch/arm64/include/asm/irqflags.h > index 62996318..9c93152 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"); > } > > -- > 1.9.1
diff --git a/arch/arm64/include/asm/irqflags.h b/arch/arm64/include/asm/irqflags.h index 62996318..9c93152 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"); }
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. Signed-off-by: Julien Thierry <julien.thierry@arm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> --- arch/arm64/include/asm/irqflags.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 1.9.1