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| author | Ingo Molnar <mingo@elte.hu> | 2011-05-24 05:43:18 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-05-24 05:53:39 +0200 |
| commit | 6e9101aeec39961308176e0f59e73ac5d37d243a (patch) | |
| tree | 7747bc5884e9e663492e53efaa15ff1f873e7d90 /kernel | |
| parent | perf tools: Fix sample type size calculation in 32 bits archs (diff) | |
| download | linux-6e9101aeec39961308176e0f59e73ac5d37d243a.tar.xz linux-6e9101aeec39961308176e0f59e73ac5d37d243a.zip | |
watchdog: Fix non-standard prototype of get_softlockup_thresh()
This build warning slipped through:
kernel/watchdog.c:102: warning: function declaration isn't a prototype
As reported by Stephen Rothwell.
Also address an unused variable warning that GCC 4.6.0 reports:
we cannot do anything about failed watchdog ops during CPU hotplug
(it's not serious enough to return an error from the notifier),
so ignore them.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Mandeep Singh Baines <msb@chromium.org>
Cc: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/20110524134129.8da27016.sfr@canb.auug.org.au
Signed-off-by: Ingo Molnar <mingo@elte.hu>
LKML-Reference: <20110517071642.GF22305@elte.hu>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/watchdog.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/kernel/watchdog.c b/kernel/watchdog.c index 6e63097fa73a..3d0c56ad4792 100644 --- a/kernel/watchdog.c +++ b/kernel/watchdog.c @@ -98,7 +98,7 @@ __setup("nosoftlockup", nosoftlockup_setup); * the thresholds with a factor: we make the soft threshold twice the amount of * time the hard threshold is. */ -static int get_softlockup_thresh() +static int get_softlockup_thresh(void) { return watchdog_thresh * 2; } @@ -415,15 +415,13 @@ static void watchdog_nmi_disable(int cpu) { return; } #endif /* CONFIG_HARDLOCKUP_DETECTOR */ /* prepare/enable/disable routines */ -static int watchdog_prepare_cpu(int cpu) +static void watchdog_prepare_cpu(int cpu) { struct hrtimer *hrtimer = &per_cpu(watchdog_hrtimer, cpu); WARN_ON(per_cpu(softlockup_watchdog, cpu)); hrtimer_init(hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); hrtimer->function = watchdog_timer_fn; - - return 0; } static int watchdog_enable(int cpu) @@ -542,17 +540,16 @@ static int __cpuinit cpu_callback(struct notifier_block *nfb, unsigned long action, void *hcpu) { int hotcpu = (unsigned long)hcpu; - int err = 0; switch (action) { case CPU_UP_PREPARE: case CPU_UP_PREPARE_FROZEN: - err = watchdog_prepare_cpu(hotcpu); + watchdog_prepare_cpu(hotcpu); break; case CPU_ONLINE: case CPU_ONLINE_FROZEN: if (watchdog_enabled) - err = watchdog_enable(hotcpu); + watchdog_enable(hotcpu); break; #ifdef CONFIG_HOTPLUG_CPU case CPU_UP_CANCELED: |