nfsd: make local functions static

This also fixes a number of sparse warnings.
Signed-off-by: NDaniel Mack <zonque@gmail.com>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: J. Bruce Fields <bfields@fieldses.org>
Cc: Neil Brown <neilb@suse.de>
Signed-off-by: NJ. Bruce Fields <bfields@redhat.com>

fs/nfsd/nfs3xdr.c

@@ -842,7 +842,7 @@ out:
 	return rv;
 }
 
-__be32 *encode_entryplus_baggage(struct nfsd3_readdirres *cd, __be32 *p, const char *name, int namlen)
+static __be32 *encode_entryplus_baggage(struct nfsd3_readdirres *cd, __be32 *p, const char *name, int namlen)
 {
 	struct svc_fh	fh;
 	int err;

fs/nfsd/nfs4state.c

@@ -2482,7 +2482,7 @@ find_delegation_file(struct nfs4_file *fp, stateid_t *stid)
 	return NULL;
 }
 
-int share_access_to_flags(u32 share_access)
+static int share_access_to_flags(u32 share_access)
 {
 	share_access &= ~NFS4_SHARE_WANT_MASK;
 
@@ -2902,7 +2902,7 @@ out:
 	return status;
 }
 
-struct lock_manager nfsd4_manager = {
+static struct lock_manager nfsd4_manager = {
 };
 
 static void

fs/nfsd/nfs4xdr.c

@@ -3115,7 +3115,7 @@ nfsd4_encode_destroy_session(struct nfsd4_compoundres *resp, int nfserr,
 	return nfserr;
 }
 
-__be32
+static __be32
 nfsd4_encode_sequence(struct nfsd4_compoundres *resp, int nfserr,
 		      struct nfsd4_sequence *seq)
 {