Re: [PATCH] ipv6: Fix the upper MTU limit in GRE tunnel

[David Miller]

From: Oussama Ghorbel <ou.ghorbel@xxxxxxxxx>
Date: Mon,  7 Oct 2013 18:50:05 +0100

> Unlike ipv4, the struct member hlen holds the length of the GRE and ipv6
> headers. This length is also counted in dev->hard_header_len.
> Perhaps, it's more clean to modify the hlen to count only the GRE header
> without ipv6 header as the variable name suggest, but the simple way to fix
> this without regression risk is simply modify the calculation of the limit
> in ip6gre_tunnel_change_mtu function.
> Verified in kernel version v3.11.
> 
> Signed-off-by: Oussama Ghorbel <ou.ghorbel@xxxxxxxxx>
> Acked-by: Hannes Frederic Sowa <hannes@xxxxxxxxxxxxxxxxxxx>

Applied.
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