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Message-ID: <28d0a7a5-ead6-4ce0-801c-096038823259@lunn.ch>
Date: Fri, 13 Sep 2024 21:27:23 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Vladimir Oltean <olteanv@...il.com>
Cc: "A. Sverdlin" <alexander.sverdlin@...mens.com>, netdev@...r.kernel.org,
	Ar1nç ÜNAL <arinc.unal@...nc9.com>,
	Daniel Golle <daniel@...rotopia.org>,
	DENG Qingfang <dqfext@...il.com>,
	Sean Wang <sean.wang@...iatek.com>,
	Florian Fainelli <f.fainelli@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Claudiu Manoil <claudiu.manoil@....com>,
	Alexandre Belloni <alexandre.belloni@...tlin.com>,
	UNGLinuxDriver@...rochip.com,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Lorenzo Bianconi <lorenzo@...nel.org>, Felix Fietkau <nbd@....name>,
	Mark Lee <Mark-MC.Lee@...iatek.com>,
	Roopa Prabhu <roopa@...dia.com>,
	Nikolay Aleksandrov <razor@...ckwall.org>,
	linux-mediatek@...ts.infradead.org, bridge@...ts.linux.dev,
	stable@...r.kernel.org
Subject: Re: [PATCH 1/2] net: dsa: RCU-protect dsa_ptr in struct net_device

> >  drivers/net/dsa/mt7530.c                    |   3 +-
> >  drivers/net/dsa/ocelot/felix.c              |   3 +-
> >  drivers/net/dsa/qca/qca8k-8xxx.c            |   3 +-
> >  drivers/net/ethernet/broadcom/bcmsysport.c  |   8 +-
> >  drivers/net/ethernet/mediatek/airoha_eth.c  |   2 +-
> >  drivers/net/ethernet/mediatek/mtk_eth_soc.c |  22 +++--
> >  drivers/net/ethernet/mediatek/mtk_ppe.c     |  15 ++-
> >  include/linux/netdevice.h                   |   2 +-
> >  include/net/dsa.h                           |  36 +++++--
> >  include/net/dsa_stubs.h                     |   6 +-
> >  net/bridge/br_input.c                       |   2 +-
> >  net/core/dev.c                              |   3 +-
> >  net/core/flow_dissector.c                   |  19 ++--
> >  net/dsa/conduit.c                           |  66 ++++++++-----
> >  net/dsa/dsa.c                               |  19 ++--
> >  net/dsa/port.c                              |   3 +-
> >  net/dsa/tag.c                               |   3 +-
> >  net/dsa/tag.h                               |  19 ++--
> >  net/dsa/tag_8021q.c                         |  10 +-
> >  net/dsa/tag_brcm.c                          |   2 +-
> >  net/dsa/tag_dsa.c                           |   8 +-
> >  net/dsa/tag_qca.c                           |  10 +-
> >  net/dsa/tag_sja1105.c                       |  22 +++--
> >  net/dsa/user.c                              | 104 +++++++++++---------
> >  net/ethernet/eth.c                          |   2 +-
> >  25 files changed, 240 insertions(+), 152 deletions(-)
> 
> Thank you for the patch, and I would like you to not give up on it, even
> if we will go for a different bug fix for 'stable'.
> 
> It's just that it makes me a bit uneasy to have this as the bug fix.

+1

We should try for a minimal fix for stable, and keep this for
net-next, given its size.

https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html

* It must be obviously correct and tested.
* It cannot be bigger than 100 lines, with context.

	Andrew

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