nfs: fix encoder callback prototypes

Declare the p_encode callbacks with the proper prototype instead of
casting to kxdreproc_t and losing all type safety.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Acked-by: Trond Myklebust <trond.myklebust@primarydata.com>

1 files changed, 60 insertions, 23 deletions

diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
index 267126d32ec0..773150678633 100644
--- a/fs/nfs/nfs3xdr.c
+++ b/fs/nfs/nfs3xdr.c
@@ -846,8 +846,10 @@ static void encode_diropargs3(struct xdr_stream *xdr, const struct nfs_fh *fh,
  */
 static void nfs3_xdr_enc_getattr3args(struct rpc_rqst *req,
 				      struct xdr_stream *xdr,
-				      const struct nfs_fh *fh)
+				      const void *data)
 {
+	const struct nfs_fh *fh = data;
+
 	encode_nfs_fh3(xdr, fh);
 }
 
@@ -884,8 +886,9 @@ static void encode_sattrguard3(struct xdr_stream *xdr,
 
 static void nfs3_xdr_enc_setattr3args(struct rpc_rqst *req,
 				      struct xdr_stream *xdr,
-				      const struct nfs3_sattrargs *args)
+				      const void *data)
 {
+	const struct nfs3_sattrargs *args = data;
 	encode_nfs_fh3(xdr, args->fh);
 	encode_sattr3(xdr, args->sattr);
 	encode_sattrguard3(xdr, args);
@@ -900,8 +903,10 @@ static void nfs3_xdr_enc_setattr3args(struct rpc_rqst *req,
  */
 static void nfs3_xdr_enc_lookup3args(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs3_diropargs *args)
+				     const void *data)
 {
+	const struct nfs3_diropargs *args = data;
+
 	encode_diropargs3(xdr, args->fh, args->name, args->len);
 }
 
@@ -922,8 +927,10 @@ static void encode_access3args(struct xdr_stream *xdr,
 
 static void nfs3_xdr_enc_access3args(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs3_accessargs *args)
+				     const void *data)
 {
+	const struct nfs3_accessargs *args = data;
+
 	encode_access3args(xdr, args);
 }
 
@@ -936,8 +943,10 @@ static void nfs3_xdr_enc_access3args(struct rpc_rqst *req,
  */
 static void nfs3_xdr_enc_readlink3args(struct rpc_rqst *req,
 				       struct xdr_stream *xdr,
-				       const struct nfs3_readlinkargs *args)
+				       const void *data)
 {
+	const struct nfs3_readlinkargs *args = data;
+
 	encode_nfs_fh3(xdr, args->fh);
 	prepare_reply_buffer(req, args->pages, args->pgbase,
 					args->pglen, NFS3_readlinkres_sz);
@@ -966,8 +975,10 @@ static void encode_read3args(struct xdr_stream *xdr,
 
 static void nfs3_xdr_enc_read3args(struct rpc_rqst *req,
 				   struct xdr_stream *xdr,
-				   const struct nfs_pgio_args *args)
+				   const void *data)
 {
+	const struct nfs_pgio_args *args = data;
+
 	encode_read3args(xdr, args);
 	prepare_reply_buffer(req, args->pages, args->pgbase,
 					args->count, NFS3_readres_sz);
@@ -1008,8 +1019,10 @@ static void encode_write3args(struct xdr_stream *xdr,
 
 static void nfs3_xdr_enc_write3args(struct rpc_rqst *req,
 				    struct xdr_stream *xdr,
-				    const struct nfs_pgio_args *args)
+				    const void *data)
 {
+	const struct nfs_pgio_args *args = data;
+
 	encode_write3args(xdr, args);
 	xdr->buf->flags |= XDRBUF_WRITE;
 }
@@ -1055,8 +1068,10 @@ static void encode_createhow3(struct xdr_stream *xdr,
 
 static void nfs3_xdr_enc_create3args(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs3_createargs *args)
+				     const void *data)
 {
+	const struct nfs3_createargs *args = data;
+
 	encode_diropargs3(xdr, args->fh, args->name, args->len);
 	encode_createhow3(xdr, args);
 }
@@ -1071,8 +1086,10 @@ static void nfs3_xdr_enc_create3args(struct rpc_rqst *req,
  */
 static void nfs3_xdr_enc_mkdir3args(struct rpc_rqst *req,
 				    struct xdr_stream *xdr,
-				    const struct nfs3_mkdirargs *args)
+				    const void *data)
 {
+	const struct nfs3_mkdirargs *args = data;
+
 	encode_diropargs3(xdr, args->fh, args->name, args->len);
 	encode_sattr3(xdr, args->sattr);
 }
@@ -1091,16 +1108,20 @@ static void nfs3_xdr_enc_mkdir3args(struct rpc_rqst *req,
  *	};
  */
 static void encode_symlinkdata3(struct xdr_stream *xdr,
-				const struct nfs3_symlinkargs *args)
+				const void *data)
 {
+	const struct nfs3_symlinkargs *args = data;
+
 	encode_sattr3(xdr, args->sattr);
 	encode_nfspath3(xdr, args->pages, args->pathlen);
 }
 
 static void nfs3_xdr_enc_symlink3args(struct rpc_rqst *req,
 				      struct xdr_stream *xdr,
-				      const struct nfs3_symlinkargs *args)
+				      const void *data)
 {
+	const struct nfs3_symlinkargs *args = data;
+
 	encode_diropargs3(xdr, args->fromfh, args->fromname, args->fromlen);
 	encode_symlinkdata3(xdr, args);
 	xdr->buf->flags |= XDRBUF_WRITE;
@@ -1160,8 +1181,10 @@ static void encode_mknoddata3(struct xdr_stream *xdr,
 
 static void nfs3_xdr_enc_mknod3args(struct rpc_rqst *req,
 				    struct xdr_stream *xdr,
-				    const struct nfs3_mknodargs *args)
+				    const void *data)
 {
+	const struct nfs3_mknodargs *args = data;
+
 	encode_diropargs3(xdr, args->fh, args->name, args->len);
 	encode_mknoddata3(xdr, args);
 }
@@ -1175,8 +1198,10 @@ static void nfs3_xdr_enc_mknod3args(struct rpc_rqst *req,
  */
 static void nfs3_xdr_enc_remove3args(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs_removeargs *args)
+				     const void *data)
 {
+	const struct nfs_removeargs *args = data;
+
 	encode_diropargs3(xdr, args->fh, args->name.name, args->name.len);
 }
 
@@ -1190,8 +1215,9 @@ static void nfs3_xdr_enc_remove3args(struct rpc_rqst *req,
  */
 static void nfs3_xdr_enc_rename3args(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs_renameargs *args)
+				     const void *data)
 {
+	const struct nfs_renameargs *args = data;
 	const struct qstr *old = args->old_name;
 	const struct qstr *new = args->new_name;
 
@@ -1209,8 +1235,10 @@ static void nfs3_xdr_enc_rename3args(struct rpc_rqst *req,
  */
 static void nfs3_xdr_enc_link3args(struct rpc_rqst *req,
 				   struct xdr_stream *xdr,
-				   const struct nfs3_linkargs *args)
+				   const void *data)
 {
+	const struct nfs3_linkargs *args = data;
+
 	encode_nfs_fh3(xdr, args->fromfh);
 	encode_diropargs3(xdr, args->tofh, args->toname, args->tolen);
 }
@@ -1240,8 +1268,10 @@ static void encode_readdir3args(struct xdr_stream *xdr,
 
 static void nfs3_xdr_enc_readdir3args(struct rpc_rqst *req,
 				      struct xdr_stream *xdr,
-				      const struct nfs3_readdirargs *args)
+				      const void *data)
 {
+	const struct nfs3_readdirargs *args = data;
+
 	encode_readdir3args(xdr, args);
 	prepare_reply_buffer(req, args->pages, 0,
 				args->count, NFS3_readdirres_sz);
@@ -1280,8 +1310,10 @@ static void encode_readdirplus3args(struct xdr_stream *xdr,
 
 static void nfs3_xdr_enc_readdirplus3args(struct rpc_rqst *req,
 					  struct xdr_stream *xdr,
-					  const struct nfs3_readdirargs *args)
+					  const void *data)
 {
+	const struct nfs3_readdirargs *args = data;
+
 	encode_readdirplus3args(xdr, args);
 	prepare_reply_buffer(req, args->pages, 0,
 				args->count, NFS3_readdirres_sz);
@@ -1310,8 +1342,10 @@ static void encode_commit3args(struct xdr_stream *xdr,
 
 static void nfs3_xdr_enc_commit3args(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs_commitargs *args)
+				     const void *data)
 {
+	const struct nfs_commitargs *args = data;
+
 	encode_commit3args(xdr, args);
 }
 
@@ -1319,8 +1353,10 @@ static void nfs3_xdr_enc_commit3args(struct rpc_rqst *req,
 
 static void nfs3_xdr_enc_getacl3args(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs3_getaclargs *args)
+				     const void *data)
 {
+	const struct nfs3_getaclargs *args = data;
+
 	encode_nfs_fh3(xdr, args->fh);
 	encode_uint32(xdr, args->mask);
 	if (args->mask & (NFS_ACL | NFS_DFACL))
@@ -1331,8 +1367,9 @@ static void nfs3_xdr_enc_getacl3args(struct rpc_rqst *req,
 
 static void nfs3_xdr_enc_setacl3args(struct rpc_rqst *req,
 				     struct xdr_stream *xdr,
-				     const struct nfs3_setaclargs *args)
+				     const void *data)
 {
+	const struct nfs3_setaclargs *args = data;
 	unsigned int base;
 	int error;
 
@@ -2495,7 +2532,7 @@ static int nfs3_stat_to_errno(enum nfs_stat status)
 #define PROC(proc, argtype, restype, timer)				\
 [NFS3PROC_##proc] = {							\
 	.p_proc      = NFS3PROC_##proc,					\
-	.p_encode    = (kxdreproc_t)nfs3_xdr_enc_##argtype##3args,	\
+	.p_encode    = nfs3_xdr_enc_##argtype##3args,			\
 	.p_decode    = (kxdrdproc_t)nfs3_xdr_dec_##restype##3res,	\
 	.p_arglen    = NFS3_##argtype##args_sz,				\
 	.p_replen    = NFS3_##restype##res_sz,				\
@@ -2538,7 +2575,7 @@ const struct rpc_version nfs_version3 = {
 static struct rpc_procinfo	nfs3_acl_procedures[] = {
 	[ACLPROC3_GETACL] = {
 		.p_proc = ACLPROC3_GETACL,
-		.p_encode = (kxdreproc_t)nfs3_xdr_enc_getacl3args,
+		.p_encode = nfs3_xdr_enc_getacl3args,
 		.p_decode = (kxdrdproc_t)nfs3_xdr_dec_getacl3res,
 		.p_arglen = ACL3_getaclargs_sz,
 		.p_replen = ACL3_getaclres_sz,
@@ -2547,7 +2584,7 @@ static struct rpc_procinfo	nfs3_acl_procedures[] = {
 	},
 	[ACLPROC3_SETACL] = {
 		.p_proc = ACLPROC3_SETACL,
-		.p_encode = (kxdreproc_t)nfs3_xdr_enc_setacl3args,
+		.p_encode = nfs3_xdr_enc_setacl3args,
 		.p_decode = (kxdrdproc_t)nfs3_xdr_dec_setacl3res,
 		.p_arglen = ACL3_setaclargs_sz,
 		.p_replen = ACL3_setaclres_sz,