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SubjectRe: [PATCH peterz-queue:sched/core] sched: fix build warning with W=1
On Sat, Sep 11, 2021 at 08:25:05AM +0000, Yafang Shao wrote:
> kernel test robot reported some build warnings with W=1 as below,
>
> kernel/sched/fair.c:892:34: warning: variable 'stats' set but not used
> kernel/sched/core.c:10238:42: warning: variable 'stats' set but not used
> kernel/sched/fair.c:893:29: warning: variable 'p' set but not used
> kernel/sched/rt.c:1292:29: warning: variable 'p' set but not used
> kernel/sched/deadline.c:1486:34: warning: variable 'stats' set but not used
> arch/nds32/include/asm/current.h:10:13: warning: variable '$r25' set but not used
>
> These warnings happen when CONFIG_SCHEDSTATS is not set, in which
> case the schedstat_* functions will be none. We should add
> '__maybe_unused' to fix it

I really hate all of this, I think the compiler is just being unhelpful
in the extreme. Also, I spupose the warning is in W=1 for a reason,
let's just completely ignore all of this.

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