From: Kees Cook <kees@kernel.org>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-atm-general@lists.sourceforge.net,
linux-can@vger.kernel.org, linux-sctp@vger.kernel.org,
netdev@vger.kernel.org, "David S. Miller" <davem@davemloft.net>,
"Eric Dumazet" <edumazet@google.com>,
"Herbert Xu" <herbert@gondor.apana.org.au>,
"Jakub Kicinski" <kuba@kernel.org>,
"Kuniyuki Iwashima" <kuniyu@google.com>,
"Marc Kleine-Budde" <mkl@pengutronix.de>,
"Marcelo Ricardo Leitner" <marcelo.leitner@gmail.com>,
"Neal Cardwell" <ncardwell@google.com>,
"Oliver Hartkopp" <socketcan@hartkopp.net>,
"Paolo Abeni" <pabeni@redhat.com>,
"Remi Denis-Courmont" <courmisch@gmail.com>,
"Simon Horman" <horms@kernel.org>,
"Steffen Klassert" <steffen.klassert@secunet.com>,
"Willem de Bruijn" <willemdebruijn.kernel@gmail.com>,
"Xin Long" <lucien.xin@gmail.com>,
"Petr Mladek" <pmladek@suse.com>,
"Thomas Weißschuh" <thomas.weissschuh@linutronix.de>
Subject: Re: [PATCH net-next] net: Convert %pK back to %p
Date: Thu, 9 Jul 2026 09:18:44 -0700 [thread overview]
Message-ID: <202607090916.7731D36D@keescook> (raw)
In-Reply-To: <20260706073824.xixrLxoD@linutronix.de>
On Mon, Jul 06, 2026 at 09:38:24AM +0200, Sebastian Andrzej Siewior wrote:
> This is a revert of commit 71338aa7d050c ("net: convert %p usage to
> %pK") which is from 2011. Back then the default behaviour for %p was to
> print the pointer. The %pK modifier was introduced to be able to control
> the behaviour of specific pointer output without changing the behaviour
> of %p for everyone. It was dedicated to avoid leaking pointers via
> /proc.
Given the policy on bare %p, and that there are so few in this list (15
files), how about review those that can just simply be removed or
switched to %pS, etc:
https://docs.kernel.org/process/deprecated.html#p-format-specifier
--
Kees Cook
prev parent reply other threads:[~2026-07-09 16:18 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-06 7:38 [PATCH net-next] net: Convert %pK back to %p Sebastian Andrzej Siewior
2026-07-09 11:28 ` Petr Mladek
2026-07-09 16:18 ` Kees Cook [this message]
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