arm: Remove unused cpu_idle_wait() (448eca90) · Commits · 戴 / test

arch/arm/Kconfig

+0 −3

Original line number	Diff line number	Diff line
		@@ -160,9 +160,6 @@ config ARCH_HAS_CPUFREQ
		and that the relevant menu configurations are displayed for
		it.

		config ARCH_HAS_CPU_IDLE_WAIT
		def_bool y

		config GENERIC_HWEIGHT
		bool
		default y

+0 −2

Original line number	Diff line number	Diff line
		@@ -88,8 +88,6 @@ unsigned long get_wchan(struct task_struct *p);
		#define cpu_relax() barrier()
		#endif

		void cpu_idle_wait(void);

		/*
		* Create a new kernel thread
		*/

+0 −20

Original line number	Diff line number	Diff line
		@@ -157,26 +157,6 @@ EXPORT_SYMBOL(pm_power_off);
		void (arm_pm_restart)(char str, const char cmd) = null_restart;
		EXPORT_SYMBOL_GPL(arm_pm_restart);

		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);

		/*
		* This is our default idle handler.
		*/