[PATCH 2/2] powerpc/irq: Replace #ifdefs by IS_ENABLED()

From: Christophe Leroy
Date: Wed May 18 2022 - 04:32:59 EST


Replace
#ifdef CONFIG_PPC_IRQ_SOFT_MASK_DEBUG and
#ifdef CONFIG_PERF_EVENTS
by IS_ENABLED() in hw_irq.h and plpar_wrappers.h

Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
---
arch/powerpc/include/asm/hw_irq.h | 30 +++++++++++------------
arch/powerpc/include/asm/plpar_wrappers.h | 5 ++--
2 files changed, 16 insertions(+), 19 deletions(-)

diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h
index edc569481faf..6efab00aa1c8 100644
--- a/arch/powerpc/include/asm/hw_irq.h
+++ b/arch/powerpc/include/asm/hw_irq.h
@@ -123,7 +123,6 @@ static inline notrace unsigned long irq_soft_mask_return(void)
*/
static inline notrace void irq_soft_mask_set(unsigned long mask)
{
-#ifdef CONFIG_PPC_IRQ_SOFT_MASK_DEBUG
/*
* The irq mask must always include the STD bit if any are set.
*
@@ -138,8 +137,8 @@ static inline notrace void irq_soft_mask_set(unsigned long mask)
* unmasks to be replayed, among other things. For now, take
* the simple approach.
*/
- WARN_ON(mask && !(mask & IRQS_DISABLED));
-#endif
+ if (IS_ENABLED(CONFIG_PPC_IRQ_SOFT_MASK_DEBUG))
+ WARN_ON(mask && !(mask & IRQS_DISABLED));

WRITE_ONCE(local_paca->irq_soft_mask, mask);
barrier();
@@ -324,11 +323,13 @@ bool power_pmu_wants_prompt_pmi(void);
*/
static inline bool should_hard_irq_enable(void)
{
-#ifdef CONFIG_PPC_IRQ_SOFT_MASK_DEBUG
- WARN_ON(irq_soft_mask_return() == IRQS_ENABLED);
- WARN_ON(mfmsr() & MSR_EE);
-#endif
-#ifdef CONFIG_PERF_EVENTS
+ if (IS_ENABLED(CONFIG_PPC_IRQ_SOFT_MASK_DEBUG)) {
+ WARN_ON(irq_soft_mask_return() == IRQS_ENABLED);
+ WARN_ON(mfmsr() & MSR_EE);
+ }
+
+ if (!IS_ENABLED(CONFIG_PERF_EVENTS))
+ return false;
/*
* If the PMU is not running, there is not much reason to enable
* MSR[EE] in irq handlers because any interrupts would just be
@@ -343,9 +344,6 @@ static inline bool should_hard_irq_enable(void)
return false;

return true;
-#else
- return false;
-#endif
}

/*
@@ -353,11 +351,11 @@ static inline bool should_hard_irq_enable(void)
*/
static inline void do_hard_irq_enable(void)
{
-#ifdef CONFIG_PPC_IRQ_SOFT_MASK_DEBUG
- WARN_ON(irq_soft_mask_return() == IRQS_ENABLED);
- WARN_ON(get_paca()->irq_happened & PACA_IRQ_MUST_HARD_MASK);
- WARN_ON(mfmsr() & MSR_EE);
-#endif
+ if (IS_ENABLED(CONFIG_PPC_IRQ_SOFT_MASK_DEBUG)) {
+ WARN_ON(irq_soft_mask_return() == IRQS_ENABLED);
+ WARN_ON(get_paca()->irq_happened & PACA_IRQ_MUST_HARD_MASK);
+ WARN_ON(mfmsr() & MSR_EE);
+ }
/*
* This allows PMI interrupts (and watchdog soft-NMIs) through.
* There is no other reason to enable this way.
diff --git a/arch/powerpc/include/asm/plpar_wrappers.h b/arch/powerpc/include/asm/plpar_wrappers.h
index 83e0f701ebc6..8239c0af5eb2 100644
--- a/arch/powerpc/include/asm/plpar_wrappers.h
+++ b/arch/powerpc/include/asm/plpar_wrappers.h
@@ -43,11 +43,10 @@ static inline long extended_cede_processor(unsigned long latency_hint)
set_cede_latency_hint(latency_hint);

rc = cede_processor();
-#ifdef CONFIG_PPC_IRQ_SOFT_MASK_DEBUG
+
/* Ensure that H_CEDE returns with IRQs on */
- if (WARN_ON(!(mfmsr() & MSR_EE)))
+ if (WARN_ON(IS_ENABLED(CONFIG_PPC_IRQ_SOFT_MASK_DEBUG) && !(mfmsr() & MSR_EE)))
__hard_irq_enable();
-#endif

set_cede_latency_hint(old_latency_hint);

--
2.35.3