From 90c05f68fcab57d669233033d34e52b8d55d57dd Mon Sep 17 00:00:00 2001 From: Jerome Forissier Date: Mon, 4 Aug 2025 14:51:01 +0200 Subject: net: lwip: ping: set net_try_count to 1 The legacy network stack sets net_try_count to 1 at the beginning of the net_loop() function. This is required for net_start_again() to work properly. Therefore, set the variable accordingly in the do_ping() function when NET_LWIP=y. This fixes an issue where a ping to an unreachable destination would run twice on the same network device. For example with qemu_arm64_lwip_defconfig: => dhcp DHCP client bound to address 10.0.2.15 (3 ms) => ping 10.0.0.1 Using virtio-net#32 device ping failed; host 10.0.0.1 is not alive Using virtio-net#32 device ping failed; host 10.0.0.1 is not alive => QEMU: Terminated Signed-off-by: Jerome Forissier --- cmd/lwip/ping.c | 1 + 1 file changed, 1 insertion(+) (limited to 'cmd/lwip/ping.c') diff --git a/cmd/lwip/ping.c b/cmd/lwip/ping.c index 87f8e958e48..6d090fc530d 100644 --- a/cmd/lwip/ping.c +++ b/cmd/lwip/ping.c @@ -170,6 +170,7 @@ int do_ping(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) if (net_lwip_dns_resolve(argv[1], &addr)) return CMD_RET_USAGE; + net_try_count = 1; restart: if (net_lwip_eth_start() < 0 || ping_loop(eth_get_dev(), &addr) < 0) { if (net_start_again() == 0) -- cgit v1.2.3