netdev - Re: [PATCH 1/2] bonding: fix xfrm offload feature setup on active-backup mode

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Message-ID: <20250915184123.505d2bb8@kernel.org>
Date: Mon, 15 Sep 2025 18:41:23 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Hangbin Liu <liuhangbin@...il.com>
Cc: netdev@...r.kernel.org, Jay Vosburgh <jv@...sburgh.net>, Andrew Lunn
 <andrew+netdev@...n.ch>, "David S. Miller" <davem@...emloft.net>, Eric
 Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>, Simon
 Horman <horms@...nel.org>, Shuah Khan <shuah@...nel.org>, Petr Machata
 <petrm@...dia.com>, linux-kselftest@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] bonding: fix xfrm offload feature setup on
 active-backup mode

On Mon, 15 Sep 2025 08:37:41 +0000 Hangbin Liu wrote:
> The active-backup bonding mode supports XFRM ESP offload. However, when
> a bond is added using command like `ip link add bond0 type bond mode 1
> miimon 100`, the `ethtool -k` command shows that the XFRM ESP offload is
> disabled. This occurs because, in bond_newlink(), we change bond link
> first and register bond device later. So the XFRM feature update in
> bond_option_mode_set() is not called as the bond device is not yet
> registered, leading to the offload feature not being set successfully.
> 
> To resolve this issue, we can modify the code order in bond_newlink() to
> ensure that the bond device is registered first before changing the bond
> link parameters. This change will allow the XFRM ESP offload feature to be
> correctly enabled.

This reportedly doesn't apply.. I suppose we want it to go via net?
-- 
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