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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-05-16 02:38:15 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-05-19 03:44:24 +0300
commit87e9b9f1d86c2ee9a10c2a4186a72d0af4cc963e (patch)
treed4967e50be04ffa2de19025b6c51f92284755a01 /include/linux/tick.h
parent671767360db8fdd1f082d15fb4b0107c1bb94a0b (diff)
downloadlinux-87e9b9f1d86c2ee9a10c2a4186a72d0af4cc963e.tar.xz
PM / sleep: Make suspend-to-idle-specific code depend on CONFIG_SUSPEND
Since idle_should_freeze() is defined to always return 'false' for CONFIG_SUSPEND unset, all of the code depending on it in cpuidle_idle_call() is not necessary in that case. Make that code depend on CONFIG_SUSPEND too to avoid building it when it is not going to be used. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/tick.h')
-rw-r--r--include/linux/tick.h12
1 files changed, 8 insertions, 4 deletions
diff --git a/include/linux/tick.h b/include/linux/tick.h
index f8492da57ad3..ec6e8bc992bf 100644
--- a/include/linux/tick.h
+++ b/include/linux/tick.h
@@ -13,8 +13,6 @@
#ifdef CONFIG_GENERIC_CLOCKEVENTS
extern void __init tick_init(void);
-extern void tick_freeze(void);
-extern void tick_unfreeze(void);
/* Should be core only, but ARM BL switcher requires it */
extern void tick_suspend_local(void);
/* Should be core only, but XEN resume magic and ARM BL switcher require it */
@@ -23,14 +21,20 @@ extern void tick_handover_do_timer(void);
extern void tick_cleanup_dead_cpu(int cpu);
#else /* CONFIG_GENERIC_CLOCKEVENTS */
static inline void tick_init(void) { }
-static inline void tick_freeze(void) { }
-static inline void tick_unfreeze(void) { }
static inline void tick_suspend_local(void) { }
static inline void tick_resume_local(void) { }
static inline void tick_handover_do_timer(void) { }
static inline void tick_cleanup_dead_cpu(int cpu) { }
#endif /* !CONFIG_GENERIC_CLOCKEVENTS */
+#if defined(CONFIG_GENERIC_CLOCKEVENTS) && defined(CONFIG_SUSPEND)
+extern void tick_freeze(void);
+extern void tick_unfreeze(void);
+#else
+static inline void tick_freeze(void) { }
+static inline void tick_unfreeze(void) { }
+#endif
+
#ifdef CONFIG_TICK_ONESHOT
extern void tick_irq_enter(void);
# ifndef arch_needs_cpu