[PATCH v6 09/12] powerpc:Add new kconfig IRQ_DEBUG_SUPPORT

[Madhavan Srinivasan]

New Kconfig is added "CONFIG_IRQ_DEBUG_SUPPORT" 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.

Signed-off-by: Madhavan Srinivasan <ma...@linux.vnet.ibm.com>
---
 arch/powerpc/Kconfig      | 4 ++++
 arch/powerpc/kernel/irq.c | 4 ++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index a8ee573fe610..333807caf822 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -46,6 +46,10 @@ config TRACE_IRQFLAGS_SUPPORT
        bool
        default y
 
+config IRQ_DEBUG_SUPPORT
+       bool
+       default n
+
 config LOCKDEP_SUPPORT
        bool
        default y
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index da538ec0fd47..ae7edfd4ba9b 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -263,7 +263,7 @@ notrace void arch_local_irq_restore(unsigned long en)
         */
        if (unlikely(irq_happened != PACA_IRQ_HARD_DIS))
                __hard_irq_disable();
-#ifdef CONFIG_TRACE_IRQFLAGS
+#ifdef CONFIG_IRQ_DEBUG_SUPPORT
        else {
                /*
                 * We should already be hard disabled here. We had bugs
@@ -274,7 +274,7 @@ notrace void arch_local_irq_restore(unsigned long en)
                if (WARN_ON(mfmsr() & MSR_EE))
                        __hard_irq_disable();
        }
-#endif /* CONFIG_TRACE_IRQFLAGS */
+#endif /* CONFIG_IRQ_DEBUG_SUPPORT */
 
        soft_enabled_set(IRQ_DISABLE_MASK_LINUX);
 
-- 
2.7.4