Re: Latest Linus git: kernel/sched.c:1216: warning: ?init_hrtick?defined but not used

From: Ingo Molnar
Date: Tue Jun 17 2008 - 04:38:15 EST



* Kevin Winchester <kjwinchester@xxxxxxxxx> wrote:

>> Subject: sched: fix defined-but-unused warning
>> From: Rabin Vincent <rabin@xxxxxx>
>> Date: Sun, 11 May 2008 05:55:33 +0530
>>
>> Fix this warning, which appears with !CONFIG_SMP:
>> kernel/sched.c:1216: warning: `init_hrtick' defined but not used
>>
>> Signed-off-by: Rabin Vincent <rabin@xxxxxx>
>> Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
>> ---
>> kernel/sched.c | 2 ++
>> 1 file changed, 2 insertions(+)
>>
>> Index: linux/kernel/sched.c
>> ===================================================================
>> --- linux.orig/kernel/sched.c
>> +++ linux/kernel/sched.c
>> @@ -1130,6 +1130,7 @@ static enum hrtimer_restart hrtick(struc
>> return HRTIMER_NORESTART;
>> }
>> +#ifdef CONFIG_SMP
>> static void hotplug_hrtick_disable(int cpu)
>> {
>> struct rq *rq = cpu_rq(cpu);
>> @@ -1185,6 +1186,7 @@ static void init_hrtick(void)
>> {
>> hotcpu_notifier(hotplug_hrtick, 0);
>> }
>> +#endif /* CONFIG_SMP */
>> static void init_rq_hrtick(struct rq *rq)
>> {
>
> Did this ever make it to a pull request? I still see the warning with
> latest git.

it's queued up in tip/sched-devel at the moment:

# sched-devel: 81d41d7: sched: fix defined-but-unused warning

but you are right, we can do this in v2.6.26 - i have cherry-picked it
over into the v2.6.26 queue of patches.

Ingo
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