No need to open code the read of local_paca->irq_happened in assembly, we have READ_ONCE() for doing the same.
Replace get_irq_happened() by READ_ONCE(local_paca->irq_happened). Signed-off-by: Christophe Leroy <christophe.le...@csgroup.eu> --- arch/powerpc/kernel/irq_64.c | 14 ++------------ 1 file changed, 2 insertions(+), 12 deletions(-) diff --git a/arch/powerpc/kernel/irq_64.c b/arch/powerpc/kernel/irq_64.c index 488f6eb4553d..0f0e8bcb368c 100644 --- a/arch/powerpc/kernel/irq_64.c +++ b/arch/powerpc/kernel/irq_64.c @@ -67,16 +67,6 @@ int distribute_irqs = 1; -static inline notrace unsigned long get_irq_happened(void) -{ - unsigned long happened; - - __asm__ __volatile__("lbz %0,%1(13)" - : "=r" (happened) : "i" (offsetof(struct paca_struct, irq_happened))); - - return happened; -} - void replay_soft_interrupts(void) { struct pt_regs regs; @@ -233,7 +223,7 @@ notrace void arch_local_irq_restore(unsigned long mask) return; happened: - irq_happened = get_irq_happened(); + irq_happened = READ_ONCE(local_paca->irq_happened); if (IS_ENABLED(CONFIG_PPC_IRQ_SOFT_MASK_DEBUG)) WARN_ON_ONCE(!irq_happened); @@ -256,7 +246,7 @@ notrace void arch_local_irq_restore(unsigned long mask) * IRQ_HARD_DIS again and warn if it is still * clear. */ - irq_happened = get_irq_happened(); + irq_happened = READ_ONCE(local_paca->irq_happened); WARN_ON_ONCE(!(irq_happened & PACA_IRQ_HARD_DIS)); } } -- 2.35.3