linux-kernel - Re: [PATCH] userns: Fix a kernel coding style issue

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Message-ID: <20200727133949.fh6htr4zff3uwm5p@wittgenstein>
Date:   Mon, 27 Jul 2020 15:39:49 +0200
From:   Christian Brauner <christian.brauner@...ntu.com>
To:     Yadav Lamichhane <tuxomega1@...il.com>
Cc:     serge@...lyn.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] userns: Fix a kernel coding style issue

On Mon, Jul 27, 2020 at 05:18:23PM +0545, Yadav Lamichhane wrote:
> fix a brace around if-else statement and for loop.
> 
> Signed-off-by: Yadav Lamichhane <tuxomega1@...il.com>
> ---
>  kernel/user_namespace.c | 9 +++------
>  1 file changed, 3 insertions(+), 6 deletions(-)
> 
> diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
> index 87804e0371fe..7703753cac97 100644
> --- a/kernel/user_namespace.c
> +++ b/kernel/user_namespace.c
> @@ -118,9 +118,8 @@ int create_user_ns(struct cred *new)
>  	ns->owner = owner;
>  	ns->group = group;
>  	INIT_WORK(&ns->work, free_user_ns);
> -	for (i = 0; i < UCOUNT_COUNTS; i++) {
> +	for (i = 0; i < UCOUNT_COUNTS; i++)
>  		ns->ucount_max[i] = INT_MAX;
> -	}
>  	ns->ucounts = ucounts;
> 
>  	/* Inherit USERNS_SETGROUPS_ALLOWED from our parent */
> @@ -1156,12 +1155,10 @@ ssize_t proc_setgroups_write(struct file *file, const char __user *buf,
>  	if (strncmp(pos, "allow", 5) == 0) {
>  		pos += 5;
>  		setgroups_allowed = true;
> -	}
> -	else if (strncmp(pos, "deny", 4) == 0) {
> +	} else if (strncmp(pos, "deny", 4) == 0) {
>  		pos += 4;
>  		setgroups_allowed = false;
> -	}
> -	else
> +	} else
>  		goto out;

Kernel coding style would mandate that the else be enclosed in {} as well.

Christian