[PATCH v2 2/4] powerpc/interrupt: Refactor prep_irq_for_user_exit()
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STALE1950d
From: Christophe Leroy <hidden>
Date: 2021-06-04 14:57:02
Also in:
lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
prep_irq_for_user_exit() is a superset of prep_irq_for_kernel_enabled_exit(). Refactor it. Signed-off-by: Christophe Leroy <redacted> --- arch/powerpc/kernel/interrupt.c | 25 +++++-------------------- 1 file changed, 5 insertions(+), 20 deletions(-)
diff --git a/arch/powerpc/kernel/interrupt.c b/arch/powerpc/kernel/interrupt.c
index 539455c62c5b..b6aa80930733 100644
--- a/arch/powerpc/kernel/interrupt.c
+++ b/arch/powerpc/kernel/interrupt.c@@ -78,29 +78,14 @@ static notrace __always_inline bool prep_irq_for_kernel_enabled_exit(bool restar */ static notrace __always_inline bool prep_irq_for_user_exit(void) { - user_enter_irqoff(); - /* This must be done with RI=1 because tracing may touch vmaps */ - trace_hardirqs_on(); - -#ifdef CONFIG_PPC32 - __hard_EE_RI_disable(); -#else - if (exit_must_hard_disable()) - __hard_EE_RI_disable(); + bool ret; - /* This pattern matches prep_irq_for_idle */ - if (unlikely(lazy_irq_pending_nocheck())) { - if (exit_must_hard_disable()) { - local_paca->irq_happened |= PACA_IRQ_HARD_DIS; - __hard_RI_enable(); - } - trace_hardirqs_off(); + user_enter_irqoff(); + ret = prep_irq_for_kernel_enabled_exit(true); + if (!ret) user_exit_irqoff(); - return false; - } -#endif - return true; + return ret; } /* Has to run notrace because it is entered not completely "reconciled" */
--
2.25.0