From 077fc62b2b66a95af43dbb363fb8e932999812d3 Mon Sep 17 00:00:00 2001 From: Christophe Leroy Date: Wed, 18 May 2022 10:48:55 +0200 Subject: [PATCH] powerpc/irq: remove inline assembly in hard_irq_disable macro Use WRITE_ONCE() instead of opencoding the saving of current stack pointeur. Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/9f05937d8722ddd2064a7c2362d8f9000e15e1ba.1652863723.git.christophe.leroy@csgroup.eu --- 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 6efab00aa1c8ab..26ede09c521df2 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)