Re: [B.A.T.M.A.N.] [PATCH 2/7] batman-adv: Treat NET_XMIT_CN as transmit successfully

From: Simon Wunderlich sw@simonwunderlich.de Date: Wed, 25 Jan 2017 17:42:58 +0100

From: Gao Feng gfree.wind@gmail.com

The tc could return NET_XMIT_CN as one congestion notification, but it does not mean the packet is lost. Other modules like ipvlan, macvlan, and others treat NET_XMIT_CN as success too.

So batman-adv should add the NET_XMIT_CN check.

Signed-off-by: Gao Feng gfree.wind@gmail.com Signed-off-by: Sven Eckelmann sven@narfation.org Signed-off-by: Simon Wunderlich sw@simonwunderlich.de

Instead of all of this churn, just change the dev_queue_xmit() call in net/batman-adv/send.c to be:

return net_xmit_eval(dev_queue_xmit(skb));