Re: [PATCH] sched/fair: fix boolreturn.cocci warning

From: Steven Rostedt
Date: Tue Dec 14 2021 - 09:14:55 EST



I'll save Peter Zijlstra time from replying to this.

On Tue, 14 Dec 2021 11:38:45 +0000
cgel.zte@xxxxxxxxx wrote:

> From: Changcheng Deng <deng.changcheng@xxxxxxxxxx>
>
> ./kernel/sched/fair.c: 9781: 9-10: WARNING: return of 0/1 in function
> 'imbalanced_active_balance' with return type bool
>
> Return statements in functions returning bool should use true/false
> instead of 1/0.

This is a stupid warning. In C "1" is the same as "true" and "0" is the
same as "false".

This is a bogus error message and something not needed to be fixed.

Please remove these checks from your scripts.

NACK

-- Steve

>
> Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
> Signed-off-by: Changcheng Deng <deng.changcheng@xxxxxxxxxx>
> ---
> kernel/sched/fair.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index ac5e55441cab..0e62fd7ac0e6 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -9778,9 +9778,9 @@ imbalanced_active_balance(struct lb_env *env)
> */
> if ((env->migration_type == migrate_task) &&
> (sd->nr_balance_failed > sd->cache_nice_tries+2))
> - return 1;
> + return true;
>
> - return 0;
> + return false;
> }
>
> static int need_active_balance(struct lb_env *env)