Use WRITE_ONCE() instead of opencoding the saving of current
stack pointeur.
Signed-off-by: Christophe Leroy <christophe.le...@csgroup.eu>
---
By the way, is WRITE_ONCE() needed at all ? Could we instead do
local_paca->saved_r1 = current_stack_pointer;
---
arch/powerpc/include/asm/hw_irq.h | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/powerpc/include/asm/hw_irq.h
b/arch/powerpc/include/asm/hw_irq.h
index 6efab00aa1c8..26ede09c521d 100644
--- a/arch/powerpc/include/asm/hw_irq.h
+++ b/arch/powerpc/include/asm/hw_irq.h
@@ -282,9 +282,7 @@ static inline bool pmi_irq_pending(void)
flags = irq_soft_mask_set_return(IRQS_ALL_DISABLED); \
local_paca->irq_happened |= PACA_IRQ_HARD_DIS; \
if (!arch_irqs_disabled_flags(flags)) { \
- asm ("stdx %%r1, 0, %1 ;" \
- : "=m" (local_paca->saved_r1) \
- : "b" (&local_paca->saved_r1)); \
+ WRITE_ONCE(local_paca->saved_r1, current_stack_pointer);\
trace_hardirqs_off(); \
} \
} while(0)
--
2.35.3
