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authorThomas Gleixner <tglx@linutronix.de>2012-05-07 17:59:50 +0000
committerThomas Gleixner <tglx@linutronix.de>2012-05-08 12:35:06 +0200
commitbbe78cbd729f85c4da6e04f45c8b2de43c3573f1 (patch)
tree41770e965d9724f4059cf20f03c1afc056900e7d
parent448eca90932d97856b6a6097fc50eef96d77dec0 (diff)
ia64: Remove unused cpu_idle_wait()
IA64 does not set CONFIG_ARCH_HAVE_IDLE_WAIT and cpuidle uses a generic function now. Remove the unused code. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/20120507175652.392394511@linutronix.de
-rw-r--r--arch/ia64/include/asm/processor.h1
-rw-r--r--arch/ia64/kernel/process.c20
2 files changed, 0 insertions, 21 deletions
diff --git a/arch/ia64/include/asm/processor.h b/arch/ia64/include/asm/processor.h
index 483f6c6a4238..f92f67aba618 100644
--- a/arch/ia64/include/asm/processor.h
+++ b/arch/ia64/include/asm/processor.h
@@ -723,7 +723,6 @@ extern unsigned long boot_option_idle_override;
enum idle_boot_override {IDLE_NO_OVERRIDE=0, IDLE_HALT, IDLE_FORCE_MWAIT,
IDLE_NOMWAIT, IDLE_POLL};
-void cpu_idle_wait(void);
void default_idle(void);
#define ia64_platform_is(x) (strcmp(x, platform_name) == 0)
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index ce74e143aea3..5e0e86ddb12f 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -273,26 +273,6 @@ static inline void play_dead(void)
}
#endif /* CONFIG_HOTPLUG_CPU */
-static void do_nothing(void *unused)
-{
-}
-
-/*
- * cpu_idle_wait - Used to ensure that all the CPUs discard old value of
- * pm_idle and update to new pm_idle value. Required while changing pm_idle
- * handler on SMP systems.
- *
- * Caller must have changed pm_idle to the new value before the call. Old
- * pm_idle value will not be used by any CPU after the return of this function.
- */
-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);
-
void __attribute__((noreturn))
cpu_idle (void)
{