NFS: Fix a number of sparse warnings

Fix a number of "warning: symbol 'foo' was not declared. Should it be
static?" conditions.

Fix 2 cases of "warning: Using plain integer as NULL pointer"

fs/nfs/delegation.c:263:31: warning: restricted fmode_t degrades to integer
  - We want to allow upgrades to a WRITE delegation, but should otherwise
    consider servers that hand out duplicate delegations to be borken.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index d30dcbfb6b20..f1f047c376d9 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -443,9 +443,8 @@ static int nfs_sockaddr_cmp(const struct sockaddr *sa1,
 }
 
 /* Common match routine for v4.0 and v4.1 callback services */
-bool
-nfs4_cb_match_client(const struct sockaddr *addr, struct nfs_client *clp,
-                     u32 minorversion)
+static bool nfs4_cb_match_client(const struct sockaddr *addr,
+                struct nfs_client *clp, u32 minorversion)
 {
         struct sockaddr *clap = (struct sockaddr *)&clp->cl_addr;