diff mbox series

[v2] NFSD: hide unused svcxdr_dupstr()

Message ID 20180122210919.1257261-1-arnd@arndb.de
State Accepted
Commit 2285ae760de2cbe4b91a55c0a8033ec332fb8049
Headers show
Series [v2] NFSD: hide unused svcxdr_dupstr() | expand

Commit Message

Arnd Bergmann Jan. 22, 2018, 9:09 p.m. UTC
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 changes the remaining caller to use a nicer IS_ENABLED() check,
which lets the compiler drop the unused code silently.

Fixes: e40d99e6183e ("NFSD: Clean up symlink argument XDR decoders")
Suggested-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

---
v2: use IS_ENABLED() instead of an #ifdef
---
 fs/nfsd/nfs4xdr.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

-- 
2.9.0

Comments

J. Bruce Fields Jan. 23, 2018, 8:28 p.m. UTC | #1
Thanks, applied.--b.

On Mon, Jan 22, 2018 at 10:09:12PM +0100, Arnd Bergmann 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 changes the remaining caller to use a nicer IS_ENABLED() check,

> which lets the compiler drop the unused code silently.

> 

> Fixes: e40d99e6183e ("NFSD: Clean up symlink argument XDR decoders")

> Suggested-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>

> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

> ---

> v2: use IS_ENABLED() instead of an #ifdef

> ---

>  fs/nfsd/nfs4xdr.c | 5 ++---

>  1 file changed, 2 insertions(+), 3 deletions(-)

> 

> diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c

> index f51c9cccaf78..86a1a2450376 100644

> --- a/fs/nfsd/nfs4xdr.c

> +++ b/fs/nfsd/nfs4xdr.c

> @@ -455,8 +455,8 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,

>  	}

>  

>  	label->len = 0;

> -#ifdef CONFIG_NFSD_V4_SECURITY_LABEL

> -	if (bmval[2] & FATTR4_WORD2_SECURITY_LABEL) {

> +	if (IS_ENABLED(CONFIG_NFSD_V4_SECURITY_LABEL) &&

> +	    bmval[2] & FATTR4_WORD2_SECURITY_LABEL) {

>  		READ_BUF(4);

>  		len += 4;

>  		dummy32 = be32_to_cpup(p++); /* lfs: we don't use it */

> @@ -476,7 +476,6 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,

>  		if (!label->data)

>  			return nfserr_jukebox;

>  	}

> -#endif

>  	if (bmval[2] & FATTR4_WORD2_MODE_UMASK) {

>  		if (!umask)

>  			goto xdr_error;

> -- 

> 2.9.0
diff mbox series

Patch

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index f51c9cccaf78..86a1a2450376 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -455,8 +455,8 @@  nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
 	}
 
 	label->len = 0;
-#ifdef CONFIG_NFSD_V4_SECURITY_LABEL
-	if (bmval[2] & FATTR4_WORD2_SECURITY_LABEL) {
+	if (IS_ENABLED(CONFIG_NFSD_V4_SECURITY_LABEL) &&
+	    bmval[2] & FATTR4_WORD2_SECURITY_LABEL) {
 		READ_BUF(4);
 		len += 4;
 		dummy32 = be32_to_cpup(p++); /* lfs: we don't use it */
@@ -476,7 +476,6 @@  nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
 		if (!label->data)
 			return nfserr_jukebox;
 	}
-#endif
 	if (bmval[2] & FATTR4_WORD2_MODE_UMASK) {
 		if (!umask)
 			goto xdr_error;