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| author | Thomas Gleixner <tglx@linutronix.de> | 2012-05-07 17:59:50 +0000 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2012-05-08 12:35:07 +0200 |
| commit | c9b92b840705542a1ae50b5407154a5595d17359 (patch) | |
| tree | f0a2cc814eeef4d6e579395df314b851769329a3 | |
| parent | bbe78cbd729f85c4da6e04f45c8b2de43c3573f1 (diff) | |
| download | blackbird-op-linux-c9b92b840705542a1ae50b5407154a5595d17359.tar.gz blackbird-op-linux-c9b92b840705542a1ae50b5407154a5595d17359.zip | |
powerpc: Remove unused cpu_idle_wait()
cpuidle uses a generic function now. Remove the cruft.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Link: http://lkml.kernel.org/r/20120507175652.330322737@linutronix.de
| -rw-r--r-- | arch/powerpc/Kconfig | 4 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/processor.h | 1 | ||||
| -rw-r--r-- | arch/powerpc/kernel/idle.c | 19 |
3 files changed, 0 insertions, 24 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index c81553508366..296e4f997974 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -87,10 +87,6 @@ config ARCH_HAS_ILOG2_U64 bool default y if 64BIT -config ARCH_HAS_CPU_IDLE_WAIT - bool - default y - config GENERIC_HWEIGHT bool default y diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index 8e2d0371fe1e..48a26d379222 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -386,7 +386,6 @@ extern unsigned long cpuidle_disable; enum idle_boot_override {IDLE_NO_OVERRIDE = 0, IDLE_POWERSAVE_OFF}; extern int powersave_nap; /* set if nap mode can be used in idle loop */ -void cpu_idle_wait(void); #ifdef CONFIG_PSERIES_IDLE extern void update_smt_snooze_delay(int snooze); diff --git a/arch/powerpc/kernel/idle.c b/arch/powerpc/kernel/idle.c index 04d79093d7a1..2099d9a879e8 100644 --- a/arch/powerpc/kernel/idle.c +++ b/arch/powerpc/kernel/idle.c @@ -113,25 +113,6 @@ void cpu_idle(void) } } -static void do_nothing(void *unused) -{ -} - -/* - * cpu_idle_wait - Used to ensure that all the CPUs come out of the old - * idle loop and start using the new idle loop. - * Required while changing idle handler on SMP systems. - * Caller must have changed idle handler to the new value before the call. - * This window may be larger on shared systems. - */ -void cpu_idle_wait(void) -{ - smp_mb(); - /* kick all the CPUs so that they exit out of pm_idle */ - smp_call_function(do_nothing, NULL, 1); -} -EXPORT_SYMBOL_GPL(cpu_idle_wait); - int powersave_nap; #ifdef CONFIG_SYSCTL |
