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Date:   Thu, 17 Jan 2019 12:30:35 +0100
From:   Steffen Klassert <>
To:     Benedict Wong <>
CC:     <>, <>,
        <>, <>,
        <>, <>
Subject: Re: [PATCH ipsec, resend 1/1] xfrm: Make set-mark default behavior
 backward compatible

On Mon, Jan 14, 2019 at 11:24:38AM -0800, Benedict Wong wrote:
> Fixes 9b42c1f179a6, which changed the default route lookup behavior for
> tunnel mode SAs in the outbound direction to use the skb mark, whereas
> previously mark=0 was used if the output mark was unspecified. In
> mark-based routing schemes such as Android’s, this change in default
> behavior causes routing loops or lookup failures.
> This patch restores the default behavior of using a 0 mark while still
> incorporating the skb mark if the SET_MARK (and SET_MARK_MASK) is
> specified.
> Tested with additions to Android's kernel unit test suite:
> Fixes: 9b42c1f179a6 ("xfrm: Extend the output_mark to support input direction and masking")
> Signed-off-by: Benedict Wong <>

Applied, thanks a lot Benedict!

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