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Commit 86627c93 authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

sh: Remove cpu_idle_wait() 



cpuidle uses generic kick_all_cpus_sync() now. Remove the unused code.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Link: http://lkml.kernel.org/r/20120507175652.461648208@linutronix.de
parent c9b92b84

arch/sh/Kconfig

+0 −3
Original line number Diff line number Diff line
@@ -153,9 +153,6 @@ config ARCH_NO_VIRT_TO_BUS 
config ARCH_HAS_DEFAULT_IDLE

	def_bool y



config ARCH_HAS_CPU_IDLE_WAIT

	def_bool y



config NO_IOPORT

	def_bool !PCI

	depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN

arch/sh/include/asm/processor.h

+0 −1
Original line number Diff line number Diff line
@@ -98,7 +98,6 @@ extern struct sh_cpuinfo cpu_data[]; 
#define cpu_relax()	barrier()



void default_idle(void);

void cpu_idle_wait(void);

void stop_this_cpu(void *);



/* Forward decl */

arch/sh/kernel/idle.c

+0 −20
Original line number Diff line number Diff line
@@ -132,10 +132,6 @@ void __init select_idle_routine(void) 
		pm_idle = poll_idle;

}



static void do_nothing(void *unused)

{

}



void stop_this_cpu(void *unused)

{

	local_irq_disable();
@@ -144,19 +140,3 @@ void stop_this_cpu(void *unused) 
	for (;;)

		cpu_sleep();

}
 


/*

 * 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);