linux-kernel - Re: [PATCH RESEND] kernel/smp: Use smp_call_func_t in on_each

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Date:   Fri, 17 Apr 2020 19:05:06 +0200
From:   Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:     Kaitao Cheng <pilgrimtao@...il.com>
Cc:     tglx@...utronix.de, peterz@...radead.org, namit@...are.com,
        linux-kernel@...r.kernel.org, songmuchun@...edance.com
Subject: Re: [PATCH RESEND] kernel/smp: Use smp_call_func_t in on_each_cpu()

On 2020-04-18 00:24:51 [+0800], Kaitao Cheng wrote:
> There is already a typedef smp_call_func_t, so we can just use it,
> maybe better.
> 
> Fixes: 3a5f65df5a0fc ("Typedef SMP call function pointer")
> Signed-off-by: Kaitao Cheng <pilgrimtao@...il.com>

I would not go as far as the Fixes: tag but otherwise:

  Acked-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>

> ---
>  kernel/smp.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/kernel/smp.c b/kernel/smp.c
> index 786092aabdcd..84303197caf9 100644
> --- a/kernel/smp.c
> +++ b/kernel/smp.c
> @@ -620,7 +620,7 @@ void __init smp_init(void)
>   * early_boot_irqs_disabled is set.  Use local_irq_save/restore() instead
>   * of local_irq_disable/enable().
>   */
> -void on_each_cpu(void (*func) (void *info), void *info, int wait)
> +void on_each_cpu(smp_call_func_t func, void *info, int wait)
>  {
>  	unsigned long flags;
>  

Sebastian