From: Jakub Kicinski <kuba@kernel.org>
To: Jann Horn <jannh@google.com>
Cc: Lukas Wunner <lukas@wunner.de>, Paolo Abeni <pabeni@redhat.com>,
Oliver Neukum <oneukum@suse.com>,
"David S. Miller" <davem@davemloft.net>,
Oleksij Rempel <o.rempel@pengutronix.de>,
Eric Dumazet <edumazet@google.com>,
netdev@vger.kernel.org, linux-usb@vger.kernel.org,
Andrew Lunn <andrew@lunn.ch>, Jacky Chou <jackychou@asix.com.tw>,
Willy Tarreau <w@1wt.eu>, Lino Sanfilippo <LinoSanfilippo@gmx.de>,
Philipp Rosenberger <p.rosenberger@kunbus.com>,
Heiner Kallweit <hkallweit1@gmail.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: Re: [PATCH] net: linkwatch: ignore events for unregistered netdevs
Date: Mon, 25 Apr 2022 08:00:57 -0700 [thread overview]
Message-ID: <20220425080057.0fc4ef66@kernel.org> (raw)
In-Reply-To: <CAG48ez3ibQjhs9Qxb0AAKE4-UZiZ5UdXG1JWcPWHAWBoO-1fVw@mail.gmail.com>
On Mon, 25 Apr 2022 16:49:34 +0200 Jann Horn wrote:
> > Doesn't mean we should make it legal. We can add a warning to catch
> > abuses.
>
> That was the idea with
> https://lore.kernel.org/netdev/20220128014303.2334568-1-jannh@google.com/,
> but I didn't get any replies when I asked what the precise semantics
> of dev_hold() are supposed to be
> (https://lore.kernel.org/netdev/CAG48ez1-OyZETvrYAfaHicYW1LbrQUVp=C0EukSWqZrYMej73w@mail.gmail.com/),
> so I don't know how to proceed...
Yeah, I think after you pointed out that the netdev per cpu refcounting
is fundamentally broken everybody decided to hit themselves with the
obliviate spell :S
next prev parent reply other threads:[~2022-04-25 15:01 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-17 7:04 [PATCH] net: linkwatch: ignore events for unregistered netdevs Lukas Wunner
2022-04-21 8:02 ` Paolo Abeni
2022-04-23 16:07 ` Lukas Wunner
2022-04-23 19:35 ` Lukas Wunner
2022-04-25 14:41 ` Jakub Kicinski
2022-04-25 14:49 ` Jann Horn
2022-04-25 15:00 ` Jakub Kicinski [this message]
2022-04-25 15:13 ` Eric Dumazet
2022-04-25 15:18 ` Jann Horn
2022-04-25 15:23 ` Eric Dumazet
2022-04-25 17:20 ` Lukas Wunner
2022-04-25 17:24 ` Eric Dumazet
2022-04-25 15:28 ` Jakub Kicinski
2022-04-25 15:31 ` Eric Dumazet
2022-04-25 15:36 ` Jakub Kicinski
2022-04-25 21:18 ` Lukas Wunner
2022-04-25 21:39 ` Eric Dumazet
2022-04-30 10:05 ` Lukas Wunner
2022-04-30 10:09 ` Lukas Wunner
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