netdev - Re: [PATCH 6.6.y] Revert "mctp: no longer rely on net->dev_index

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Message-ID: <20250609083749.741c27f5@kernel.org>
Date: Mon, 9 Jun 2025 08:37:49 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Jeremy Kerr <jk@...econstruct.com.au>
Cc: Eric Dumazet <edumazet@...gle.com>, Sasha Levin <sashal@...nel.org>,
 Matt Johnston <matt@...econstruct.com.au>, "David S. Miller"
 <davem@...emloft.net>, Paolo Abeni <pabeni@...hat.com>,
 netdev@...r.kernel.org, Patrick Williams <patrick@...cx.xyz>, Peter Yin
 <peteryin.openbmc@...il.com>
Subject: Re: [PATCH 6.6.y] Revert "mctp: no longer rely on
 net->dev_index_head[]"

On Mon, 09 Jun 2025 22:13:52 +0800 Jeremy Kerr wrote:
> > I would rather make sure f22b4b55edb5 ("net: make
> > for_each_netdev_dump() a little more bug-proof")
> > is backported to kernels using for_each_netdev_dump()  
> 
> Either way works for me, but I assume that changing the semantics of
> for_each_netdev_dump() would be fairly risky for a stable series,
> especially given the amount of testing 6.6.y has had.
> 
> Jakub, as the author of that fix: any preferences?

We should backport it, I can't think of why someone would depend 
on the old behavior.