linux-kernel - Re: [PATCH][next] ocfs2: remove redundant assignment to variable status

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Message-ID: <a4d38a49-9629-4ee0-9eba-4d45abace30d@linux.alibaba.com>
Date: Wed, 24 Apr 2024 11:30:52 +0800
From: Joseph Qi <joseph.qi@...ux.alibaba.com>
To: Colin Ian King <colin.i.king@...il.com>, akpm <akpm@...ux-foundation.org>
Cc: kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org,
 ocfs2-devel@...ts.linux.dev, Mark Fasheh <mark@...heh.com>,
 Joel Becker <jlbec@...lplan.org>, Heming Zhao <heming.zhao@...e.com>
Subject: Re: [PATCH][next] ocfs2: remove redundant assignment to variable
 status



On 4/24/24 6:30 AM, Colin Ian King wrote:
> Variable status is being assigned and error code that is never read, it is
> being assigned inside of a do-while loop. The assignment is redundant and
> can be removed.
> 
> Cleans up clang scan build warning:
> fs/ocfs2/dlm/dlmdomain.c:1530:2: warning: Value stored to 'status' is never
> read [deadcode.DeadStores]
> 
> Signed-off-by: Colin Ian King <colin.i.king@...il.com>

Acked-by: Joseph Qi <joseph.qi@...ux.alibaba.com>
> ---
>  fs/ocfs2/dlm/dlmdomain.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/fs/ocfs2/dlm/dlmdomain.c b/fs/ocfs2/dlm/dlmdomain.c
> index 2e0a2f338282..2018501b2249 100644
> --- a/fs/ocfs2/dlm/dlmdomain.c
> +++ b/fs/ocfs2/dlm/dlmdomain.c
> @@ -1527,7 +1527,6 @@ static void dlm_send_join_asserts(struct dlm_ctxt *dlm,
>  {
>  	int status, node, live;
>  
> -	status = 0;
>  	node = -1;
>  	while ((node = find_next_bit(node_map, O2NM_MAX_NODES,
>  				     node + 1)) < O2NM_MAX_NODES) {