Wrap buffers used for rpc debug printks into RPC_IFDEBUG

Sorry for the noise, but here's the v3 of this compilation fix :)

There are some places, which declare the char buf[...] on the stack
to push it later into dprintk(). Since the dprintk sometimes (if the
CONFIG_SYSCTL=n) becomes an empty do { } while (0) stub, these buffers
cause gcc to produce appropriate warnings.

Wrap these buffers with RPC_IFDEBUG macro, as Trond proposed, to
compile them out when not needed.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Acked-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 0d784f6f609f..66648dd92d97 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -172,7 +172,7 @@ void nfs_callback_down(void)
 static int nfs_callback_authenticate(struct svc_rqst *rqstp)
 {
         struct nfs_client *clp;
-        char buf[RPC_MAX_ADDRBUFLEN];
+        RPC_IFDEBUG(char buf[RPC_MAX_ADDRBUFLEN]);
 
         /* Don't talk to strangers */
         clp = nfs_find_client(svc_addr(rqstp), 4);