rxrpc: trace: Don't use __builtin_return_address for rxrpc_call tracing

In rxrpc tracing, use enums to generate lists of points of interest rather
than __builtin_return_address() for the rxrpc_call tracepoint

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
diff --git a/net/rxrpc/sendmsg.c b/net/rxrpc/sendmsg.c
index cfe0bad..76b1e2e 100644
--- a/net/rxrpc/sendmsg.c
+++ b/net/rxrpc/sendmsg.c
@@ -667,7 +667,7 @@ int rxrpc_do_sendmsg(struct rxrpc_sock *rx, struct msghdr *msg, size_t len)
 		case RXRPC_CALL_CLIENT_AWAIT_CONN:
 		case RXRPC_CALL_SERVER_PREALLOC:
 		case RXRPC_CALL_SERVER_SECURING:
-			rxrpc_put_call(call, rxrpc_call_put);
+			rxrpc_put_call(call, rxrpc_call_put_sendmsg);
 			ret = -EBUSY;
 			goto error_release_sock;
 		default:
@@ -737,7 +737,7 @@ int rxrpc_do_sendmsg(struct rxrpc_sock *rx, struct msghdr *msg, size_t len)
 	if (!dropped_lock)
 		mutex_unlock(&call->user_mutex);
 error_put:
-	rxrpc_put_call(call, rxrpc_call_put);
+	rxrpc_put_call(call, rxrpc_call_put_sendmsg);
 	_leave(" = %d", ret);
 	return ret;