ACPI: fix unused function warning

kosaki · lenb · commit 6c9c0fd062a6 · 2010-07-21T11:30:09.000-04:00
CONFIG_ACPI_PROCFS=n:

drivers/acpi/processor_idle.c:83: warning: 'us_to_pm_timer_ticks' defined but not used.

Signed-off-by: KOSAKI Motohiro &lt;kosaki.motohiro@jp.fujitsu.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Len Brown &lt;len.brown@intel.com&gt;
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
@@ -80,10 +80,13 @@ module_param(nocst, uint, 0000);
 static unsigned int latency_factor __read_mostly = 2;
 module_param(latency_factor, uint, 0644);
 
+#ifdef CONFIG_ACPI_PROCFS
 static u64 us_to_pm_timer_ticks(s64 t)
 {
 	return div64_u64(t * PM_TIMER_FREQUENCY, 1000000);
 }
+#endif
+
 /*
  * IBM ThinkPad R40e crashes mysteriously when going into C2 or C3.
  * For now disable this. Probably a bug somewhere else.

Original file line number	Diff line number	Diff line change
`@@ -80,10 +80,13 @@ module_param(nocst, uint, 0000);`
`80`	`80`	`static unsigned int latency_factor __read_mostly = 2;`
`81`	`81`	`module_param(latency_factor, uint, 0644);`
`82`	`82`
	`83`	`+#ifdef CONFIG_ACPI_PROCFS`
`83`	`84`	`static u64 us_to_pm_timer_ticks(s64 t)`
`84`	`85`	`{`
`85`	`86`	`return div64_u64(t * PM_TIMER_FREQUENCY, 1000000);`
`86`	`87`	`}`
	`88`	`+#endif`
	`89`	`+`
`87`	`90`	`/*`
`88`	`91`	`* IBM ThinkPad R40e crashes mysteriously when going into C2 or C3.`
`89`	`92`	`* For now disable this. Probably a bug somewhere else.`