linux-kernel - Re: [PATCH] NFSD: hide unused svcxdr

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Date:   Fri, 19 Jan 2018 11:15:33 -0500
From:   Chuck Lever <chuck.lever@...cle.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Bruce Fields <bfields@...ldses.org>,
        Jeff Layton <jlayton@...nel.org>,
        Trond Myklebust <trond.myklebust@...marydata.com>,
        Kinglong Mee <kinglongmee@...il.com>,
        Linux NFS Mailing List <linux-nfs@...r.kernel.org>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] NFSD: hide unused svcxdr_dupstr()



> On Jan 19, 2018, at 9:54 AM, Arnd Bergmann <arnd@...db.de> wrote:
> 
> There is now only one caller left for svcxdr_dupstr() and this is inside
> of an #ifdef, so we can get a warning when the option is disabled:
> 
> fs/nfsd/nfs4xdr.c:241:1: error: 'svcxdr_dupstr' defined but not used [-Werror=unused-function]
> 
> This adds another #ifdef around the definition.
> 
> Fixes: e40d99e6183e ("NFSD: Clean up symlink argument XDR decoders")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Seems OK to me, and sorry for the noise.

Reviewed-by: Chuck Lever <chuck.lever@...cle.com>


> ---
> fs/nfsd/nfs4xdr.c | 2 ++
> 1 file changed, 2 insertions(+)
> 
> diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
> index f51c9cccaf78..374a62af6034 100644
> --- a/fs/nfsd/nfs4xdr.c
> +++ b/fs/nfsd/nfs4xdr.c
> @@ -237,6 +237,7 @@ svcxdr_tmpalloc(struct nfsd4_compoundargs *argp, u32 len)
>  * Note null-terminating in place usually isn't safe since the
>  * buffer might end on a page boundary.
>  */
> +#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
> static char *
> svcxdr_dupstr(struct nfsd4_compoundargs *argp, void *buf, u32 len)
> {
> @@ -248,6 +249,7 @@ svcxdr_dupstr(struct nfsd4_compoundargs *argp, void *buf, u32 len)
> 	p[len] = '\0';
> 	return p;
> }
> +#endif
> 
> /**
>  * savemem - duplicate a chunk of memory for later processing
> -- 
> 2.9.0
> 
> --
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--
Chuck Lever