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, 1 insertions, 1 deletions

diff --git a/icmp_flow.h b/icmp_flow.h
index 5a2eed9..c9847ea 100644
--- a/icmp_flow.h
+++ b/icmp_flow.h
@@ -25,7 +25,7 @@ struct icmp_ping_flow {
 	uint16_t id;
 };
 
-bool icmp_ping_timer(const struct ctx *c, union flow *flow,
+bool icmp_ping_timer(const struct ctx *c, const struct icmp_ping_flow *pingf,
 		     const struct timespec *now);
 
 #endif /* ICMP_FLOW_H */