[PATCH] NFSv4: empty array fix

 Older gcc's don't like this.

 fs/nfs/nfs4proc.c:2194: field `data' has incomplete type
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

fs/nfs/nfs4proc.c

@@ -2191,7 +2191,7 @@ static void buf_to_pages(const void *buf, size_t buflen,
 struct nfs4_cached_acl {
 	int cached;
 	size_t len;
-	char data[];
+	char data[0];
 };
 
 static void nfs4_set_cached_acl(struct inode *inode, struct nfs4_cached_acl *acl)