Re: [PATCH] nfsd: use correct format characters

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Hi--

On 3/16/22 14:31, Bill Wendling wrote:
> When compiling with -Wformat, clang emits the following warnings:
> 
> fs/nfsd/flexfilelayout.c:120:27: warning: format specifies type 'unsigned
> char' but the argument has type 'int' [-Wformat]
>                          "%s.%hhu.%hhu", addr, port >> 8, port & 0xff);
>                              ~~~~              ^~~~~~~~~
>                              %d
> fs/nfsd/flexfilelayout.c:120:38: warning: format specifies type 'unsigned
> char' but the argument has type 'int' [-Wformat]
>                          "%s.%hhu.%hhu", addr, port >> 8, port & 0xff);
>                                   ~~~~                    ^~~~~~~~~~~
>                                   %d
> 
> The types of these arguments are unconditionally defined, so this patch
> updates the format character to the correct ones for ints and unsigned
> ints.
> 
> Link: ClangBuiltLinux/linux#378

Please make the Link: more complete, such as a URL/URI.

> Signed-off-by: Bill Wendling <morbo@xxxxxxxxxx>
> ---
>  fs/nfsd/flexfilelayout.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/nfsd/flexfilelayout.c b/fs/nfsd/flexfilelayout.c
> index 2e2f1d5e9f62..070f90ed09b6 100644
> --- a/fs/nfsd/flexfilelayout.c
> +++ b/fs/nfsd/flexfilelayout.c
> @@ -117,7 +117,7 @@ nfsd4_ff_proc_getdeviceinfo(struct super_block *sb, struct svc_rqst *rqstp,
>  
>  	da->netaddr.addr_len =
>  		snprintf(da->netaddr.addr, FF_ADDR_LEN + 1,
> -			 "%s.%hhu.%hhu", addr, port >> 8, port & 0xff);
> +			 "%s.%d.%d", addr, port >> 8, port & 0xff);
>  
>  	da->tightly_coupled = false;
>  

thanks.
-- 
~Randy



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