3 files changed, 36 insertions, 27 deletions

diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 3435d24bfe55..d3a4c0231933 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -69,7 +69,6 @@ struct svc_serv {
 	struct list_head	sv_tempsocks;	/* all temporary sockets */
 	int			sv_tmpcnt;	/* count of temporary sockets */
 	struct timer_list	sv_temptimer;	/* timer for aging temporary sockets */
-	sa_family_t		sv_family;	/* listener's address family */
 
 	char *			sv_name;	/* service name */
 
@@ -385,19 +384,19 @@ struct svc_procedure {
 /*
  * Function prototypes.
  */
-struct svc_serv *svc_create(struct svc_program *, unsigned int, sa_family_t,
+struct svc_serv *svc_create(struct svc_program *, unsigned int,
 			    void (*shutdown)(struct svc_serv *));
 struct svc_rqst *svc_prepare_thread(struct svc_serv *serv,
 					struct svc_pool *pool);
 void		   svc_exit_thread(struct svc_rqst *);
 struct svc_serv *  svc_create_pooled(struct svc_program *, unsigned int,
-			sa_family_t, void (*shutdown)(struct svc_serv *),
+			void (*shutdown)(struct svc_serv *),
 			svc_thread_fn, struct module *);
 int		   svc_set_num_threads(struct svc_serv *, struct svc_pool *, int);
 void		   svc_destroy(struct svc_serv *);
 int		   svc_process(struct svc_rqst *);
-int		   svc_register(const struct svc_serv *, const unsigned short,
-				const unsigned short);
+int		   svc_register(const struct svc_serv *, const int,
+				const unsigned short, const unsigned short);
 
 void		   svc_wake_up(struct svc_serv *);
 void		   svc_reserve(struct svc_rqst *rqstp, int space);
diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h
index 0127daca4354..0d9cb6ef28b0 100644
--- a/include/linux/sunrpc/svc_xprt.h
+++ b/include/linux/sunrpc/svc_xprt.h
@@ -71,7 +71,8 @@ int	svc_reg_xprt_class(struct svc_xprt_class *);
 void	svc_unreg_xprt_class(struct svc_xprt_class *);
 void	svc_xprt_init(struct svc_xprt_class *, struct svc_xprt *,
 		      struct svc_serv *);
-int	svc_create_xprt(struct svc_serv *, char *, unsigned short, int);
+int	svc_create_xprt(struct svc_serv *, const char *, const int,
+			const unsigned short, int);
 void	svc_xprt_enqueue(struct svc_xprt *xprt);
 void	svc_xprt_received(struct svc_xprt *);
 void	svc_xprt_put(struct svc_xprt *xprt);
@@ -80,7 +81,8 @@ void	svc_close_xprt(struct svc_xprt *xprt);
 void	svc_delete_xprt(struct svc_xprt *xprt);
 int	svc_port_is_privileged(struct sockaddr *sin);
 int	svc_print_xprts(char *buf, int maxlen);
-struct	svc_xprt *svc_find_xprt(struct svc_serv *, char *, int, int);
+struct	svc_xprt *svc_find_xprt(struct svc_serv *serv, const char *xcl_name,
+			const sa_family_t af, const unsigned short port);
 int	svc_xprt_names(struct svc_serv *serv, char *buf, int buflen);
 
 static inline void svc_xprt_get(struct svc_xprt *xprt)
@@ -88,29 +90,32 @@ static inline void svc_xprt_get(struct svc_xprt *xprt)
 	kref_get(&xprt->xpt_ref);
 }
 static inline void svc_xprt_set_local(struct svc_xprt *xprt,
-				      struct sockaddr *sa, int salen)
+				      const struct sockaddr *sa,
+				      const size_t salen)
 {
 	memcpy(&xprt->xpt_local, sa, salen);
 	xprt->xpt_locallen = salen;
 }
 static inline void svc_xprt_set_remote(struct svc_xprt *xprt,
-				       struct sockaddr *sa, int salen)
+				       const struct sockaddr *sa,
+				       const size_t salen)
 {
 	memcpy(&xprt->xpt_remote, sa, salen);
 	xprt->xpt_remotelen = salen;
 }
-static inline unsigned short svc_addr_port(struct sockaddr *sa)
+static inline unsigned short svc_addr_port(const struct sockaddr *sa)
 {
-	unsigned short ret = 0;
+	const struct sockaddr_in *sin = (const struct sockaddr_in *)sa;
+	const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *)sa;
+
 	switch (sa->sa_family) {
 	case AF_INET:
-		ret = ntohs(((struct sockaddr_in *)sa)->sin_port);
-		break;
+		return ntohs(sin->sin_port);
 	case AF_INET6:
-		ret = ntohs(((struct sockaddr_in6 *)sa)->sin6_port);
-		break;
+		return ntohs(sin6->sin6_port);
 	}
-	return ret;
+
+	return 0;
 }
 
 static inline size_t svc_addr_len(struct sockaddr *sa)
@@ -124,36 +129,39 @@ static inline size_t svc_addr_len(struct sockaddr *sa)
 	return -EAFNOSUPPORT;
 }
 
-static inline unsigned short svc_xprt_local_port(struct svc_xprt *xprt)
+static inline unsigned short svc_xprt_local_port(const struct svc_xprt *xprt)
 {
-	return svc_addr_port((struct sockaddr *)&xprt->xpt_local);
+	return svc_addr_port((const struct sockaddr *)&xprt->xpt_local);
 }
 
-static inline unsigned short svc_xprt_remote_port(struct svc_xprt *xprt)
+static inline unsigned short svc_xprt_remote_port(const struct svc_xprt *xprt)
 {
-	return svc_addr_port((struct sockaddr *)&xprt->xpt_remote);
+	return svc_addr_port((const struct sockaddr *)&xprt->xpt_remote);
 }
 
-static inline char *__svc_print_addr(struct sockaddr *addr,
-				     char *buf, size_t len)
+static inline char *__svc_print_addr(const struct sockaddr *addr,
+				     char *buf, const size_t len)
 {
+	const struct sockaddr_in *sin = (const struct sockaddr_in *)addr;
+	const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *)addr;
+
 	switch (addr->sa_family) {
 	case AF_INET:
-		snprintf(buf, len, "%pI4, port=%u",
-			&((struct sockaddr_in *)addr)->sin_addr,
-			ntohs(((struct sockaddr_in *) addr)->sin_port));
+		snprintf(buf, len, "%pI4, port=%u", &sin->sin_addr,
+			ntohs(sin->sin_port));
 		break;
 
 	case AF_INET6:
 		snprintf(buf, len, "%pI6, port=%u",
-			 &((struct sockaddr_in6 *)addr)->sin6_addr,
-			ntohs(((struct sockaddr_in6 *) addr)->sin6_port));
+			 &sin6->sin6_addr,
+			ntohs(sin6->sin6_port));
 		break;
 
 	default:
 		snprintf(buf, len, "unknown address type: %d", addr->sa_family);
 		break;
 	}
+
 	return buf;
 }
 #endif /* SUNRPC_SVC_XPRT_H */
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 11fc71d50c1e..1758d9f5b5c3 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -235,6 +235,7 @@ static inline __be32 *xprt_skip_transport_header(struct rpc_xprt *xprt, __be32 *
  */
 int			xprt_register_transport(struct xprt_class *type);
 int			xprt_unregister_transport(struct xprt_class *type);
+int			xprt_load_transport(const char *);
 void			xprt_set_retrans_timeout_def(struct rpc_task *task);
 void			xprt_set_retrans_timeout_rtt(struct rpc_task *task);
 void			xprt_wake_pending_tasks(struct rpc_xprt *xprt, int status);
@@ -259,6 +260,7 @@ void			xprt_conditional_disconnect(struct rpc_xprt *xprt, unsigned int cookie);
 #define XPRT_BOUND		(4)
 #define XPRT_BINDING		(5)
 #define XPRT_CLOSING		(6)
+#define XPRT_CONNECTION_ABORT	(7)
 
 static inline void xprt_set_connected(struct rpc_xprt *xprt)
 {