At the moment only ifup stuff turns netif up.
After the commit f0624a701513 ('net: Do not route traffic
to interfaces that are not up') the dhcp command
keeps netif->ifup == false and network subsystem
can't route packets.
How to repropduce the problem on qemu-malta_defconfig:
qemu-system-mips -nodefaults -M malta -m 256 \
-nographic -serial stdio -monitor null \
-bios barebox-flash-image \
-net user -net nic,model=rtl8139
...
barebox:/ dhcp
eth0: 100Mbps full duplex link detected
eth0: DHCP client bound to address 10.0.2.15
barebox:/ ping 10.0.2.2
ping failed: No route to host
However if ifup command is used for network interface
configuration then there is no network problem, e.g.
barebox:/ ifup eth0
eth0: 100Mbps full duplex link detected
eth0: DHCP client bound to address 10.0.2.15
barebox:/ ping 10.0.2.2
host 10.0.2.2 is alive
Signed-off-by: Antony Pavlov <antonynpavlov@xxxxxxxxx>
CC: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
---
net/dhcp.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/dhcp.c b/net/dhcp.c
index 984d32a93e..427d80a5a8 100644
--- a/net/dhcp.c
+++ b/net/dhcp.c
@@ -615,6 +615,9 @@ int dhcp(struct eth_device *edev, const struct dhcp_req_param *param)
dhcp_result_free(res);
+ if (!ret)
+ edev->ifup = true;
+
return ret;
}
--
2.19.1
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