netdev - Re: [PATCH net-next] ipv6: make IPV6_RECVPKTINFO work for ipv4 datagrams

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Date:	Sun, 19 Jan 2014 19:53:30 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	hannes@...essinduktion.org
Cc:	netdev@...r.kernel.org, gert@...ce.net
Subject: Re: [PATCH net-next] ipv6: make IPV6_RECVPKTINFO work for ipv4
 datagrams

From: Hannes Frederic Sowa <hannes@...essinduktion.org>
Date: Mon, 20 Jan 2014 03:43:08 +0100

> We currently don't report IPV6_RECVPKTINFO in cmsg access ancillary data
> for IPv4 datagrams on IPv6 sockets.
> 
> This patch splits the ip6_datagram_recv_ctl into two functions, one
> which handles both protocol families, AF_INET and AF_INET6, while the
> ip6_datagram_recv_specific_ctl only handles IPv6 cmsg data.
> 
> ip6_datagram_recv_*_ctl never reported back any errors, so we can make
> them return void. Also provide a helper for protocols which don't offer dual
> personality to further use ip6_datagram_recv_ctl, which is exported to
> modules.
> 
> I needed to shuffle the code for ping around a bit to make it easier to
> implement dual personality for ping ipv6 sockets in future.
> 
> Reported-by: Gert Doering <gert@...ce.net>
> Signed-off-by: Hannes Frederic Sowa <hannes@...essinduktion.org>

Looks good, applied, thanks.
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