[PATCH] Replace local_save_flags+local_irq_disable with

The combination of "local_save_flags" and "local_irq_disable" seems to be
equivalent to "local_irq_save" (see code snips below). Consequently, replace
occurrences of local_save_flags+local_irq_disable with local_irq_save.

* local_irq_save
#define raw_local_irq_save(flags) \
                do { (flags) = __raw_local_irq_save(); } while (0)

static inline unsigned long __raw_local_irq_save(void)
{
        unsigned long flags = __raw_local_save_flags();

        raw_local_irq_disable();

        return flags;
}

* local_save_flags
#define raw_local_save_flags(flags) \
                do { (flags) = __raw_local_save_flags(); } while (0)

Signed-off-by: Fernando Vazquez <fernando@intellilink.co.jp>
Signed-off-by: Andi Kleen <ak@suse.de>

2 files changed, 2 insertions, 4 deletions

diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c
index 660602c51f51..b95d1e378b96 100644
--- a/arch/x86_64/kernel/apic.c
+++ b/arch/x86_64/kernel/apic.c
@@ -468,8 +468,7 @@ static int lapic_suspend(struct sys_device *dev, pm_message_t state)
         apic_pm_state.apic_tmict = apic_read(APIC_TMICT);
         apic_pm_state.apic_tdcr = apic_read(APIC_TDCR);
         apic_pm_state.apic_thmr = apic_read(APIC_LVTTHMR);
-        local_save_flags(flags);
-        local_irq_disable();
+        local_irq_save(flags);
         disable_local_APIC();
         local_irq_restore(flags);
         return 0;
diff --git a/arch/x86_64/kernel/genapic_flat.c b/arch/x86_64/kernel/genapic_flat.c
index 2ceb8b872b57..50ad153eaac4 100644
--- a/arch/x86_64/kernel/genapic_flat.c
+++ b/arch/x86_64/kernel/genapic_flat.c
@@ -49,8 +49,7 @@ static void flat_send_IPI_mask(cpumask_t cpumask, int vector)
         unsigned long cfg;
         unsigned long flags;
 
-        local_save_flags(flags);
-        local_irq_disable();
+        local_irq_save(flags);
 
         /*
          * Wait for idle.