rxrpc: Pass the connection pointer to rxrpc_post_packet_to_call()

Pass the connection pointer to rxrpc_post_packet_to_call() as the call
might get disconnected whilst we're looking at it, but the connection
pointer determined by rxrpc_data_read() is guaranteed by RCU for the
duration of the call.

Signed-off-by: David Howells <dhowells@redhat.com>

diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c
index 9242fef..52da437 100644 (file)
--- a/net/rxrpc/input.c
+++ b/net/rxrpc/input.c
@@ -497,7 +497,8 @@ protocol_error:
  * post an incoming packet to the appropriate call/socket to deal with
  * - must get rid of the sk_buff, either by freeing it or by queuing it
  */
-static void rxrpc_post_packet_to_call(struct rxrpc_call *call,
+static void rxrpc_post_packet_to_call(struct rxrpc_connection *conn,
+                                     struct rxrpc_call *call,
                                      struct sk_buff *skb)
 {
        struct rxrpc_skb_priv *sp;
@@ -558,7 +559,7 @@ resend_final_ack:
 dead_call:
        if (sp->hdr.type != RXRPC_PACKET_TYPE_ABORT) {
                skb->priority = RX_CALL_DEAD;
-               rxrpc_reject_packet(call->conn->params.local, skb);
+               rxrpc_reject_packet(conn->params.local, skb);
                goto unlock;
        }
 free_unlock:
@@ -754,7 +755,7 @@ void rxrpc_data_ready(struct sock *sk)
                        goto cant_route_call;
 
                rxrpc_see_call(call);
-               rxrpc_post_packet_to_call(call, skb);
+               rxrpc_post_packet_to_call(conn, call, skb);
                goto out_unlock;
        }