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author | Arnd Bergmann <arnd@arndb.de> | 2016-01-25 15:41:49 (GMT) |
---|---|---|
committer | Thomas Gleixner <tglx@linutronix.de> | 2016-01-26 15:26:06 (GMT) |
commit | 7809998ab1af22602a8463845108edc49dfb9ef0 (patch) | |
tree | ec37067a880f55946043e4bed06d2d0aa0f7a738 /kernel/time/tick-sched.c | |
parent | e03a58c320e1103ebe97bda8ebdfcc5c9829c53f (diff) | |
download | linux-7809998ab1af22602a8463845108edc49dfb9ef0.tar.xz |
tick/sched: Hide unused oneshot timer code
A couple of functions in kernel/time/tick-sched.c are only
relevant for oneshot timer mode, i.e. when hires-timers or
nohz mode are enabled. If both are disabled, we get gcc warnings
about them:
kernel/time/tick-sched.c:98:16: warning: 'tick_init_jiffy_update' defined but not used [-Wunused-function]
static ktime_t tick_init_jiffy_update(void)
^
kernel/time/tick-sched.c:112:13: warning: 'tick_sched_do_timer' defined but not used [-Wunused-function]
static void tick_sched_do_timer(ktime_t now)
^
kernel/time/tick-sched.c:134:13: warning: 'tick_sched_handle' defined but not used [-Wunused-function]
static void tick_sched_handle(struct tick_sched *ts, struct pt_regs *regs)
^
This encloses the whole set of functions in an appropriate ifdef
to avoid the warning and to make it clearer when they are used.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1453736525-1959191-1-git-send-email-arnd@arndb.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/time/tick-sched.c')
-rw-r--r-- | kernel/time/tick-sched.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 7ea28ed..cbe5d8d 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -36,16 +36,17 @@ */ static DEFINE_PER_CPU(struct tick_sched, tick_cpu_sched); -/* - * The time, when the last jiffy update happened. Protected by jiffies_lock. - */ -static ktime_t last_jiffies_update; - struct tick_sched *tick_get_tick_sched(int cpu) { return &per_cpu(tick_cpu_sched, cpu); } +#if defined(CONFIG_NO_HZ_COMMON) || defined(CONFIG_HIGH_RES_TIMERS) +/* + * The time, when the last jiffy update happened. Protected by jiffies_lock. + */ +static ktime_t last_jiffies_update; + /* * Must be called with interrupts disabled ! */ @@ -151,6 +152,7 @@ static void tick_sched_handle(struct tick_sched *ts, struct pt_regs *regs) update_process_times(user_mode(regs)); profile_tick(CPU_PROFILING); } +#endif #ifdef CONFIG_NO_HZ_FULL cpumask_var_t tick_nohz_full_mask; |