flow: Properly type callbacks to protocol specific handlers

The flow dispatches deferred and timer handling for flows centrally, but
needs to call into protocol specific code for the handling of individual
flows.  Currently this passes a general union flow *.  It makes more sense
to pass the specific relevant flow type structure.  That brings the check
on the flow type adjacent to casting to the union variant which it tags.

Arguably, this is a slight abstraction violation since it involves the
generic flow code using protocol specific types.  It's already calling into
protocol specific functions, so I don't think this really makes any
difference.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/flow.c b/flow.c
index 80dd269..e257f89 100644
--- a/flow.c
+++ b/flow.c
@@ -292,17 +292,17 @@ void flow_defer_handler(const struct ctx *c, const struct timespec *now)
 			ASSERT(false);
 			break;
 		case FLOW_TCP:
-			closed = tcp_flow_defer(flow);
+			closed = tcp_flow_defer(&flow->tcp);
 			break;
 		case FLOW_TCP_SPLICE:
-			closed = tcp_splice_flow_defer(flow);
+			closed = tcp_splice_flow_defer(&flow->tcp_splice);
 			if (!closed && timer)
-				tcp_splice_timer(c, flow);
+				tcp_splice_timer(c, &flow->tcp_splice);
 			break;
 		case FLOW_PING4:
 		case FLOW_PING6:
 			if (timer)
-				closed = icmp_ping_timer(c, flow, now);
+				closed = icmp_ping_timer(c, &flow->ping, now);
 			break;
 		default:
 			/* Assume other flow types don't need any handling */