SUNRPC: Rename skb_reader_t and friends

Clean-up:  hch suggested that the RPC client shouldn't pollute the name
space used by the generic skb manipulation routines in net/core/skbuff.c.

Rename a couple of types in xdr.h to adhere to this convention.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

include/linux/sunrpc/xdr.h

@@ -148,19 +148,19 @@ extern int write_bytes_to_xdr_buf(struct xdr_buf *, unsigned int, void *, unsign
 /*
  * Helper structure for copying from an sk_buff.
  */
-typedef struct {
+struct xdr_skb_reader {
 	struct sk_buff	*skb;
 	unsigned int	offset;
 	size_t		count;
 	__wsum		csum;
-} skb_reader_t;
+};
 
-typedef size_t (*skb_read_actor_t)(skb_reader_t *desc, void *to, size_t len);
+typedef size_t (*xdr_skb_read_actor)(struct xdr_skb_reader *desc, void *to, size_t len);
 
-size_t xdr_skb_read_bits(skb_reader_t *desc, void *to, size_t len);
+size_t xdr_skb_read_bits(struct xdr_skb_reader *desc, void *to, size_t len);
 extern int csum_partial_copy_to_xdr(struct xdr_buf *, struct sk_buff *);
 extern ssize_t xdr_partial_copy_from_skb(struct xdr_buf *, unsigned int,
-		skb_reader_t *, skb_read_actor_t);
+		struct xdr_skb_reader *, xdr_skb_read_actor);
 
 extern int xdr_encode_word(struct xdr_buf *, unsigned int, u32);
 extern int xdr_decode_word(struct xdr_buf *, unsigned int, u32 *);

net/sunrpc/socklib.c

@@ -24,7 +24,7 @@
  * Possibly called several times to iterate over an sk_buff and copy
  * data out of it.
  */
-size_t xdr_skb_read_bits(skb_reader_t *desc, void *to, size_t len)
+size_t xdr_skb_read_bits(struct xdr_skb_reader *desc, void *to, size_t len)
 {
 	if (len > desc->count)
 		len = desc->count;
@@ -43,7 +43,7 @@ size_t xdr_skb_read_bits(skb_reader_t *desc, void *to, size_t len)
  *
  * Same as skb_read_bits, but calculate a checksum at the same time.
  */
-static size_t xdr_skb_read_and_csum_bits(skb_reader_t *desc, void *to, size_t len)
+static size_t xdr_skb_read_and_csum_bits(struct xdr_skb_reader *desc, void *to, size_t len)
 {
 	unsigned int pos;
 	__wsum csum2;
@@ -66,7 +66,7 @@ static size_t xdr_skb_read_and_csum_bits(skb_reader_t *desc, void *to, size_t le
  * @copy_actor: virtual method for copying data
  *
  */
-ssize_t xdr_partial_copy_from_skb(struct xdr_buf *xdr, unsigned int base, skb_reader_t *desc, skb_read_actor_t copy_actor)
+ssize_t xdr_partial_copy_from_skb(struct xdr_buf *xdr, unsigned int base, struct xdr_skb_reader *desc, xdr_skb_read_actor copy_actor)
 {
 	struct page	**ppage = xdr->pages;
 	unsigned int	len, pglen = xdr->page_len;
@@ -148,7 +148,7 @@ out:
  */
 int csum_partial_copy_to_xdr(struct xdr_buf *xdr, struct sk_buff *skb)
 {
-	skb_reader_t	desc;
+	struct xdr_skb_reader	desc;
 
 	desc.skb = skb;
 	desc.offset = sizeof(struct udphdr);

net/sunrpc/xprtsock.c

@@ -651,7 +651,7 @@ static void xs_udp_data_ready(struct sock *sk, int len)
 	read_unlock(&sk->sk_callback_lock);
 }
 
-static inline void xs_tcp_read_fraghdr(struct rpc_xprt *xprt, skb_reader_t *desc)
+static inline void xs_tcp_read_fraghdr(struct rpc_xprt *xprt, struct xdr_skb_reader *desc)
 {
 	struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
 	size_t len, used;
@@ -697,7 +697,7 @@ static void xs_tcp_check_fraghdr(struct sock_xprt *transport)
 	}
 }
 
-static inline void xs_tcp_read_xid(struct sock_xprt *transport, skb_reader_t *desc)
+static inline void xs_tcp_read_xid(struct sock_xprt *transport, struct xdr_skb_reader *desc)
 {
 	size_t len, used;
 	char *p;
@@ -717,7 +717,7 @@ static inline void xs_tcp_read_xid(struct sock_xprt *transport, skb_reader_t *de
 	xs_tcp_check_fraghdr(transport);
 }
 
-static inline void xs_tcp_read_request(struct rpc_xprt *xprt, skb_reader_t *desc)
+static inline void xs_tcp_read_request(struct rpc_xprt *xprt, struct xdr_skb_reader *desc)
 {
 	struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
 	struct rpc_rqst *req;
@@ -739,7 +739,7 @@ static inline void xs_tcp_read_request(struct rpc_xprt *xprt, skb_reader_t *desc
 	rcvbuf = &req->rq_private_buf;
 	len = desc->count;
 	if (len > transport->tcp_reclen - transport->tcp_offset) {
-		skb_reader_t my_desc;
+		struct xdr_skb_reader my_desc;
 
 		len = transport->tcp_reclen - transport->tcp_offset;
 		memcpy(&my_desc, desc, sizeof(my_desc));
@@ -795,7 +795,7 @@ out:
 	xs_tcp_check_fraghdr(transport);
 }
 
-static inline void xs_tcp_read_discard(struct sock_xprt *transport, skb_reader_t *desc)
+static inline void xs_tcp_read_discard(struct sock_xprt *transport, struct xdr_skb_reader *desc)
 {
 	size_t len;
 
@@ -813,7 +813,7 @@ static int xs_tcp_data_recv(read_descriptor_t *rd_desc, struct sk_buff *skb, uns
 {
 	struct rpc_xprt *xprt = rd_desc->arg.data;
 	struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
-	skb_reader_t desc = {
+	struct xdr_skb_reader desc = {
 		.skb	= skb,
 		.offset	= offset,
 		.count	= len,