diff options
Diffstat (limited to 'arch/sh/kernel/idle.c')
-rw-r--r-- | arch/sh/kernel/idle.c | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/arch/sh/kernel/idle.c b/arch/sh/kernel/idle.c index ee226e20c20c..0c910163caa3 100644 --- a/arch/sh/kernel/idle.c +++ b/arch/sh/kernel/idle.c | |||
@@ -132,10 +132,6 @@ void __init select_idle_routine(void) | |||
132 | pm_idle = poll_idle; | 132 | pm_idle = poll_idle; |
133 | } | 133 | } |
134 | 134 | ||
135 | static void do_nothing(void *unused) | ||
136 | { | ||
137 | } | ||
138 | |||
139 | void stop_this_cpu(void *unused) | 135 | void stop_this_cpu(void *unused) |
140 | { | 136 | { |
141 | local_irq_disable(); | 137 | local_irq_disable(); |
@@ -144,19 +140,3 @@ void stop_this_cpu(void *unused) | |||
144 | for (;;) | 140 | for (;;) |
145 | cpu_sleep(); | 141 | cpu_sleep(); |
146 | } | 142 | } |
147 | |||
148 | /* | ||
149 | * cpu_idle_wait - Used to ensure that all the CPUs discard old value of | ||
150 | * pm_idle and update to new pm_idle value. Required while changing pm_idle | ||
151 | * handler on SMP systems. | ||
152 | * | ||
153 | * Caller must have changed pm_idle to the new value before the call. Old | ||
154 | * pm_idle value will not be used by any CPU after the return of this function. | ||
155 | */ | ||
156 | void cpu_idle_wait(void) | ||
157 | { | ||
158 | smp_mb(); | ||
159 | /* kick all the CPUs so that they exit out of pm_idle */ | ||
160 | smp_call_function(do_nothing, NULL, 1); | ||
161 | } | ||
162 | EXPORT_SYMBOL_GPL(cpu_idle_wait); | ||