netdev - Re: [PATCH net-next] ipv6: pass up EMSGSIZE msg for UDP socket in Ipv6

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Message-ID: <1455782280.648.4.camel@edumazet-ThinkPad-T530>
Date:	Thu, 18 Feb 2016 08:58:00 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Wei Wang <tracywwnj@...il.com>
Cc:	netdev@...r.kernel.org, "David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Wei Wang <weiwan@...gle.com>
Subject: Re: [PATCH net-next] ipv6: pass up EMSGSIZE msg for UDP socket in
 Ipv6

On mer., 2016-02-17 at 13:58 -0800, Wei Wang wrote:
> From: Wei Wang <weiwan@...gle.com>
> 
> In ipv4,  when  the machine receives a ICMP_FRAG_NEEDED message,  the
> connected UDP socket will get EMSGSIZE message on its next read from the
> socket.
> However, this is not the case for ipv6.
> This fix modifies the udp err handler in Ipv6 for ICMP6_PKT_TOOBIG to
> make it similar to ipv4 behavior. That is when the machine gets an
> ICMP6_PKT_TOOBIG message, the connected UDP socket will get EMSGSIZE
> message on its next read from the socket.
> 
> Signed-off-by: Wei Wang <weiwan@...gle.com>

Acked-by: Eric Dumazet <edumazet@...gle.com>

Thanks Wei.