linux-kernel - Re: [PATCH][next] vboxsf: remove redundant variable out

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Date: Wed, 3 Apr 2024 16:09:40 +0200
From: Hans de Goede <hdegoede@...hat.com>
To: Colin Ian King <colin.i.king@...il.com>, linux-fsdevel@...r.kernel.org
Cc: kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH][next] vboxsf: remove redundant variable out_len

Hi,

On 2/29/24 11:51 PM, Colin Ian King wrote:
> The variable out_len is being used to accumulate the number of
> bytes but it is not being used for any other purpose. The variable
> is redundant and can be removed.
> 
> Cleans up clang scan build warning:
> fs/vboxsf/utils.c:443:9: warning: variable 'out_len' set but not
> used [-Wunused-but-set-variable]
> 
> Signed-off-by: Colin Ian King <colin.i.king@...il.com>

Thanks, patch looks good to me:

Reviewed-by: Hans de Goede <hdegoede@...hat.com>

I have added this to my local vboxsf branch now and I'll send
out a pull-request with this and a couple of other vboxsf fixes
soon.

Regards,

Hans



> ---
>  fs/vboxsf/utils.c | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/fs/vboxsf/utils.c b/fs/vboxsf/utils.c
> index 72ac9320e6a3..9515bbf0b54c 100644
> --- a/fs/vboxsf/utils.c
> +++ b/fs/vboxsf/utils.c
> @@ -440,7 +440,6 @@ int vboxsf_nlscpy(struct vboxsf_sbi *sbi, char *name, size_t name_bound_len,
>  {
>  	const char *in;
>  	char *out;
> -	size_t out_len;
>  	size_t out_bound_len;
>  	size_t in_bound_len;
>  
> @@ -448,7 +447,6 @@ int vboxsf_nlscpy(struct vboxsf_sbi *sbi, char *name, size_t name_bound_len,
>  	in_bound_len = utf8_len;
>  
>  	out = name;
> -	out_len = 0;
>  	/* Reserve space for terminating 0 */
>  	out_bound_len = name_bound_len - 1;
>  
> @@ -469,7 +467,6 @@ int vboxsf_nlscpy(struct vboxsf_sbi *sbi, char *name, size_t name_bound_len,
>  
>  		out += nb;
>  		out_bound_len -= nb;
> -		out_len += nb;
>  	}
>  
>  	*out = 0;