rxrpc: Prune the contents of the rxrpc_conn_proto struct

Prune the contents of the rxrpc_conn_proto struct.  Most of the fields aren't
used anymore.
Signed-off-by: David Howells <dhowells@redhat.com>

net/rxrpc/ar-internal.h

@@ -229,18 +229,12 @@ struct rxrpc_peer {
  * Keys for matching a connection.
  */
 struct rxrpc_conn_proto {
-	unsigned long		hash_key;
-	struct rxrpc_local	*local;		/* Representation of local endpoint */
+	union {
+		struct {
 			u32	epoch;		/* epoch of this connection */
 			u32	cid;		/* connection ID */
-	u8			in_clientflag;	/* RXRPC_CLIENT_INITIATED if we are server */
-	u8			addr_size;	/* Size of the address */
-	sa_family_t		family;		/* Transport protocol */
-	__be16			port;		/* Peer UDP/UDP6 port */
-	union {					/* Peer address */
-		struct in_addr	ipv4_addr;
-		struct in6_addr	ipv6_addr;
-		u32		raw_addr[0];
+		};
+		u64		index_key;
 	};
 };
 
@@ -584,7 +578,7 @@ static inline bool rxrpc_conn_is_client(const struct rxrpc_connection *conn)
 
 static inline bool rxrpc_conn_is_service(const struct rxrpc_connection *conn)
 {
-	return conn->proto.in_clientflag;
+	return !rxrpc_conn_is_client(conn);
 }
 
 static inline void rxrpc_get_connection(struct rxrpc_connection *conn)

net/rxrpc/call_object.c

@@ -566,7 +566,7 @@ struct rxrpc_call *rxrpc_incoming_call(struct rxrpc_sock *rx,
 	}
 	call->epoch = conn->proto.epoch;
 	call->service_id = conn->params.service_id;
-	call->in_clientflag = conn->proto.in_clientflag;
+	call->in_clientflag = RXRPC_CLIENT_INITIATED;
 	/* Add the new call to the hashtable */
 	rxrpc_call_hash_add(call);
 

net/rxrpc/conn_client.c

@@ -132,22 +132,11 @@ rxrpc_alloc_client_connection(struct rxrpc_conn_parameters *cp, gfp_t gfp)
 	}
 
 	conn->params		= *cp;
-	conn->proto.local	= cp->local;
 	conn->proto.epoch	= rxrpc_epoch;
 	conn->proto.cid		= 0;
-	conn->proto.in_clientflag = 0;
-	conn->proto.family	= cp->peer->srx.transport.family;
 	conn->out_clientflag	= RXRPC_CLIENT_INITIATED;
 	conn->state		= RXRPC_CONN_CLIENT;
 
-	switch (conn->proto.family) {
-	case AF_INET:
-		conn->proto.addr_size = sizeof(conn->proto.ipv4_addr);
-		conn->proto.ipv4_addr = cp->peer->srx.transport.sin.sin_addr;
-		conn->proto.port = cp->peer->srx.transport.sin.sin_port;
-		break;
-	}
-
 	ret = rxrpc_get_client_connection_id(conn, gfp);
 	if (ret < 0)
 		goto error_0;

net/rxrpc/conn_service.c

@@ -70,10 +70,8 @@ struct rxrpc_connection *rxrpc_incoming_connection(struct rxrpc_local *local,
 		return ERR_PTR(-ENOMEM);
 	}
 
-	candidate->proto.local		= local;
 	candidate->proto.epoch		= sp->hdr.epoch;
 	candidate->proto.cid		= sp->hdr.cid & RXRPC_CIDMASK;
-	candidate->proto.in_clientflag	= RXRPC_CLIENT_INITIATED;
 	candidate->params.local		= local;
 	candidate->params.peer		= peer;
 	candidate->params.service_id	= sp->hdr.serviceId;