net/arp: account for ARP delay, avoid duplicate packets on timeout
eth_rx() in the main reception loop may trigger sending a packet which
is already timed out (or will immediately) upon reception of an ARP reply.
As long as the ARP reply is pending, the timeout handler of a packet
should be postponed.
Happens on TFTP with bad network (e.g. WLAN).
Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
diff --git a/net/net.c b/net/net.c
index a115ce2..6f75e3c 100644
--- a/net/net.c
+++ b/net/net.c
@@ -569,7 +569,9 @@
goto done;
}
- arp_timeout_check();
+ if (arp_timeout_check() > 0) {
+ time_start = get_timer(0);
+ }
/*
* Check for a timeout, and run the timeout handler