linux-kernel - Re: [PATCH] netdevsim: fib: Remove redundant code

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Date:   Wed, 10 Mar 2021 12:01:41 +0200
From:   Ido Schimmel <idosch@...sch.org>
To:     Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Cc:     kuba@...nel.org, davem@...emloft.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] netdevsim: fib: Remove redundant code

On Wed, Mar 10, 2021 at 10:35:27AM +0800, Jiapeng Chong wrote:
> Fix the following coccicheck warnings:
> 
> ./drivers/net/netdevsim/fib.c:874:5-8: Unneeded variable: "err". Return
> "0" on line 889.
> 
> Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
> Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
> ---
>  drivers/net/netdevsim/fib.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/drivers/net/netdevsim/fib.c b/drivers/net/netdevsim/fib.c
> index 46fb414..db794f9 100644
> --- a/drivers/net/netdevsim/fib.c
> +++ b/drivers/net/netdevsim/fib.c
> @@ -871,8 +871,6 @@ static int nsim_fib6_event(struct nsim_fib_data *data,
>  
>  static int nsim_fib_event(struct nsim_fib_event *fib_event)

Can you change to 'static void' ?

>  {
> -	int err = 0;
> -
>  	switch (fib_event->family) {
>  	case AF_INET:
>  		nsim_fib4_event(fib_event->data, &fib_event->fen_info,
> @@ -886,7 +884,7 @@ static int nsim_fib_event(struct nsim_fib_event *fib_event)
>  		break;
>  	}
>  
> -	return err;
> +	return 0;
>  }
>  
>  static int nsim_fib4_prepare_event(struct fib_notifier_info *info,
> -- 
> 1.8.3.1
>