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powerpc: Add new kconfig CONFIG_PPC_IRQ_SOFT_MASK_DEBUG

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New Kconfig is added "CONFIG_PPC_IRQ_SOFT_MASK_DEBUG" to add WARN_ON
to alert the invalid transitions. Also moved the code under the
CONFIG_TRACE_IRQFLAGS in arch_local_irq_restore() to new Kconfig.

Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
[mpe: Fix name of CONFIG option in change log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Madhavan Srinivasan
2017-12-20 09:25:54 +05:30
committed by Michael Ellerman
parent f442d00480
commit 9aa88188ee
4 changed files with 10 additions and 6 deletions
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4
arch/powerpc/kernel/irq.c
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@@ -264,7 +264,7 @@ notrace void arch_local_irq_restore(unsigned long mask)
*/
if (unlikely(irq_happened != PACA_IRQ_HARD_DIS))
__hard_irq_disable();
#ifdef CONFIG_TRACE_IRQFLAGS
#ifdef CONFIG_PPC_IRQ_SOFT_MASK_DEBUG
else {
/*
* We should already be hard disabled here. We had bugs
@@ -275,7 +275,7 @@ notrace void arch_local_irq_restore(unsigned long mask)
if (WARN_ON(mfmsr() & MSR_EE))
__hard_irq_disable();
}
#endif /* CONFIG_TRACE_IRQFLAGS */
#endif
irq_soft_mask_set(IRQS_ALL_DISABLED);
trace_hardirqs_off();