netdev - Re: [PATCH net v2] ip_tunnel: fix over-mtu packet send fail without TUNNEL_DONT

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Date:   Sat, 31 Oct 2020 17:22:30 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     wenxu@...oud.cn
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH net v2] ip_tunnel: fix over-mtu packet send fail without
 TUNNEL_DONT_FRAGMENT flags

On Fri, 30 Oct 2020 11:32:08 +0800 wenxu@...oud.cn wrote:
> From: wenxu <wenxu@...oud.cn>
> 
> The tunnel dvice such as vxlan, bareudp  and geneve in the lwt mode set
> the outer df only based TUNNEL_DONT_FRAGMENT. 
> And this is also the some behavior for gre device before switching to use 
> ip_md_tunnel_xmit as the following patch.
> 
> 962924f ip_gre: Refactor collect metatdata mode tunnel xmit to 
> ip_md_tunnel_xmit
> 
> When the ip_gre in lwt mode xmit with ip_md_tunnel_xmi changed the rule and
> make the discrepancy between handling of DF by different tunnels. So in the
> ip_md_tunnel_xmit should follow the same rule like other tunnels.
> 
> Fixes: cfc7381b3002 ("ip_tunnel: add collect_md mode to IPIP tunnel")
> Signed-off-by: wenxu <wenxu@...oud.cn>

Applied, thanks.