Re: [PATCH v2] net: fix incorrect original ingress device index in PKTINFO

[David Miller]

From: Wei Zhang <asuka.com@xxxxxxx>
Date: Thu, 29 Dec 2016 16:45:04 +0800

> When we send a packet for our own local address on a non-loopback
> interface (e.g. eth0), due to the change had been introduced from
> commit 0b922b7a829c ("net: original ingress device index in PKTINFO"), the
> original ingress device index would be set as the loopback interface.
> However, the packet should be considered as if it is being arrived via the
> sending interface (eth0), otherwise it would break the expectation of the
> userspace application (e.g. the DHCPRELEASE message from dhcp_release
> binary would be ignored by the dnsmasq daemon, since it come from lo which
> is not the interface dnsmasq bind to)
> 
> Fixes: 0b922b7a829c ("net: original ingress device index in PKTINFO")
> Acked-by: David Ahern <dsa@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Wei Zhang <asuka.com@xxxxxxx>

Applied and queued up for -stable.