Commit 1fec74a9 authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds
Browse files

[PATCH] acpi_processor_latency_notifier(): UP warning fix



drivers/acpi/processor_idle.c:1112: warning: 'smp_callback' defined but not used

Cc: Len Brown <lenb@kernel.org>
Cc: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 286e1ea3
......@@ -1108,6 +1108,7 @@ static const struct file_operations acpi_processor_power_fops = {
.release = single_release,
};
#ifdef CONFIG_SMP
static void smp_callback(void *v)
{
/* we already woke the CPU up, nothing more to do */
......@@ -1129,6 +1130,7 @@ static int acpi_processor_latency_notify(struct notifier_block *b,
static struct notifier_block acpi_processor_latency_notifier = {
.notifier_call = acpi_processor_latency_notify,
};
#endif
int __cpuinit acpi_processor_power_init(struct acpi_processor *pr,
struct acpi_device *device)
......@@ -1146,7 +1148,9 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr,
"ACPI: processor limited to max C-state %d\n",
max_cstate);
first_run++;
#ifdef CONFIG_SMP
register_latency_notifier(&acpi_processor_latency_notifier);
#endif
}
if (!pr)
......@@ -1218,7 +1222,9 @@ int acpi_processor_power_exit(struct acpi_processor *pr,
* copies of pm_idle before proceeding.
*/
cpu_idle_wait();
#ifdef CONFIG_SMP
unregister_latency_notifier(&acpi_processor_latency_notifier);
#endif
}
return 0;
......
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