[PATCH] More rpc cleanup...

Don't share a routing for xdr_encode_mon/umon.

What we really want to do is split the XDR routine into one which does
SM_MON encodes, and the other which does SM_UNMON.

Remove some unused "void" encoders / decoders to avoid compiler warnings.

fs/lockd/mon.c

@@ -135,16 +135,12 @@ nsm_create(void)
  * XDR functions for NSM.
  */
 
-static int
-xdr_encode_mon(struct rpc_rqst *rqstp, u32 *p, struct nsm_args *argp)
+static u32 *
+xdr_encode_common(struct rpc_rqst *rqstp, u32 *p, struct nsm_args *argp)
 {
 	char	buffer[20];
 	u32	addr = ntohl(argp->addr);
 
-	dprintk("nsm: xdr_encode_mon(%08x, %d, %d, %d)\n",
-			htonl(argp->addr), htonl(argp->prog),
-			htonl(argp->vers), htonl(argp->proc));
-
 	/*
 	 * Use the dotted-quad IP address of the remote host as
 	 * identifier. Linux statd always looks up the canonical
@@ -155,19 +151,34 @@ xdr_encode_mon(struct rpc_rqst *rqstp, u32 *p, struct nsm_args *argp)
 				 	(addr>>8) & 0xff,  (addr) & 0xff);
 	if (!(p = xdr_encode_string(p, buffer))
 	 || !(p = xdr_encode_string(p, system_utsname.nodename)))
-		return -EIO;
+		return ERR_PTR(-EIO);
 	*p++ = htonl(argp->prog);
 	*p++ = htonl(argp->vers);
 	*p++ = htonl(argp->proc);
 
-	/* This is the private part. Needed only for SM_MON call */
-	if (rqstp->rq_task->tk_msg.rpc_proc == SM_MON) {
+	return p;
+}
+
+static int
+xdr_encode_mon(struct rpc_rqst *rqstp, u32 *p, struct nsm_args *argp)
+{
+	p = xdr_encode_common(rqstp, p, argp);
+	if (IS_ERR(p))
+		return PTR_ERR(p);
 	*p++ = argp->addr;
 	*p++ = argp->vers;
 	*p++ = argp->proto;
 	*p++ = 0;
-	}
+	rqstp->rq_slen = xdr_adjust_iovec(rqstp->rq_svec, p);
+	return 0;
+}
 
+static int
+xdr_encode_unmon(struct rpc_rqst *rqstp, u32 *p, struct nsm_args *argp)
+{
+	p = xdr_encode_common(rqstp, p, argp);
+	if (IS_ERR(p))
+		return PTR_ERR(p);
 	rqstp->rq_slen = xdr_adjust_iovec(rqstp->rq_svec, p);
 	return 0;
 }
@@ -209,7 +220,7 @@ static struct rpc_procinfo	nsm_procedures[] = {
 	},
 [SM_UNMON] = {
 		.p_proc		= SM_UNMON,
-		.p_encode	= (kxdrproc_t) xdr_encode_mon,
+		.p_encode	= (kxdrproc_t) xdr_encode_unmon,
 		.p_decode	= (kxdrproc_t) xdr_decode_stat,
 		.p_bufsiz	= MAX(SM_mon_id_sz, SM_unmonres_sz) << 2,
 	},

fs/lockd/xdr.c

@@ -379,18 +379,13 @@ nlmsvc_encode_void(struct svc_rqst *rqstp, u32 *p, void *dummy)
 /*
  * Now, the client side XDR functions
  */
-static int
-nlmclt_encode_void(struct rpc_rqst *req, u32 *p, void *ptr)
-{
-	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
-	return 0;
-}
-
+#ifdef NLMCLNT_SUPPORT_SHARES
 static int
 nlmclt_decode_void(struct rpc_rqst *req, u32 *p, void *ptr)
 {
 	return 0;
 }
+#endif
 
 static int
 nlmclt_encode_testargs(struct rpc_rqst *req, u32 *p, nlm_args *argp)

fs/lockd/xdr4.c

@@ -382,18 +382,13 @@ nlm4svc_encode_void(struct svc_rqst *rqstp, u32 *p, void *dummy)
 /*
  * Now, the client side XDR functions
  */
-static int
-nlm4clt_encode_void(struct rpc_rqst *req, u32 *p, void *ptr)
-{
-	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
-	return 0;
-}
-
+#ifdef NLMCLNT_SUPPORT_SHARES
 static int
 nlm4clt_decode_void(struct rpc_rqst *req, u32 *p, void *ptr)
 {
 	return 0;
 }
+#endif
 
 static int
 nlm4clt_encode_testargs(struct rpc_rqst *req, u32 *p, nlm_args *argp)

fs/nfs/nfs2xdr.c

@@ -44,7 +44,6 @@ extern int			nfs_stat_to_errno(int stat);
 #define NFS_info_sz		5
 #define NFS_entry_sz		NFS_filename_sz+3
 
-#define NFS_enc_void_sz		0
 #define NFS_diropargs_sz	NFS_fhandle_sz+NFS_filename_sz
 #define NFS_sattrargs_sz	NFS_fhandle_sz+NFS_sattr_sz
 #define NFS_readlinkargs_sz	NFS_fhandle_sz
@@ -56,7 +55,6 @@ extern int			nfs_stat_to_errno(int stat);
 #define NFS_symlinkargs_sz	NFS_diropargs_sz+NFS_path_sz+NFS_sattr_sz
 #define NFS_readdirargs_sz	NFS_fhandle_sz+2
 
-#define NFS_dec_void_sz		0
 #define NFS_attrstat_sz		1+NFS_fattr_sz
 #define NFS_diropres_sz		1+NFS_fhandle_sz+NFS_fattr_sz
 #define NFS_readlinkres_sz	1
@@ -154,16 +152,6 @@ xdr_encode_sattr(u32 *p, struct iattr *attr)
 /*
  * NFS encode functions
  */
-/*
- * Encode void argument
- */
-static int
-nfs_xdr_enc_void(struct rpc_rqst *req, u32 *p, void *dummy)
-{
-	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
-	return 0;
-}
-
 /*
  * Encode file handle argument
  * GETATTR, READLINK, STATFS
@@ -462,15 +450,6 @@ nfs_decode_dirent(u32 *p, struct nfs_entry *entry, int plus)
 /*
  * NFS XDR decode functions
  */
-/*
- * Decode void reply
- */
-static int
-nfs_xdr_dec_void(struct rpc_rqst *req, u32 *p, void *dummy)
-{
-	return 0;
-}
-
 /*
  * Decode simple status reply
  */