Re: [PATCH] sched/fair: Fix assignment of boolean variables

From: Peter Zijlstra
Date: Mon Dec 03 2018 - 03:33:39 EST


On Sat, Dec 01, 2018 at 05:09:36PM +0800, Wen Yang wrote:
> Fix the following warnings reported by coccinelle:
> kernel//sched/fair.c:7958:3-12: WARNING: Assignment of bool to 0/1
>
> This also makes the code more readable.

I disagree; anybody that has trouble with 0/1 vs false/true needs to
stay away from C.

> Signed-off-by: Wen Yang <wen.yang99@xxxxxxxxxx>
> CC: Ingo Molnar <mingo@xxxxxxxxxx>
> CC: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> CC: linux-kernel@xxxxxxxxxxxxxxx
> ---
> kernel/sched/fair.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index a2e8160968cb..f19aa66f9b15 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -7955,7 +7955,7 @@ static inline void update_sg_lb_stats(struct lb_env *env,
> if (env->sd->flags & SD_ASYM_CPUCAPACITY &&
> sgs->group_misfit_task_load < rq->misfit_task_load) {
> sgs->group_misfit_task_load = rq->misfit_task_load;
> - *overload = 1;
> + *overload = true;
> }
> }
>

Anyway, this code is going away anyway:

https://lkml.kernel.org/r/20181119141857.8625-12-quentin.perret@xxxxxxx