linux-kernel - Re: [PATCH] fs: vboxsf: remove unused out

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Date:   Thu, 30 Mar 2023 10:19:29 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     Tom Rix <trix@...hat.com>, nathan@...nel.org,
        ndesaulniers@...gle.com
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev
Subject: Re: [PATCH] fs: vboxsf: remove unused out_len variable

Hi,

On 3/30/23 01:03, Tom Rix wrote:
> clang with W=1 reports
> fs/vboxsf/utils.c:442:9: error: variable
>   'out_len' set but not used [-Werror,-Wunused-but-set-variable]
>         size_t out_len;
>                ^
> This variable is not used so remove it.
> 
> Signed-off-by: Tom Rix <trix@...hat.com>

Thanks, patch looks good to me:

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

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 dd0ae1188e87..ab0c9b01a0c2 100644
> --- a/fs/vboxsf/utils.c
> +++ b/fs/vboxsf/utils.c
> @@ -439,7 +439,6 @@ 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;
>  
> @@ -447,7 +446,6 @@ 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;
>  
> @@ -468,7 +466,6 @@ 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;