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Date: Wed, 9 Apr 2025 19:58:59 +0300
From: Leon Romanovsky <leon@kernel.org>
To: Thomas =?iso-8859-1?Q?Wei=DFschuh?= <thomas.weissschuh@linutronix.de>
Cc: Mustafa Ismail <mustafa.ismail@intel.com>,
	Tatyana Nikolova <tatyana.e.nikolova@intel.com>,
	Jason Gunthorpe <jgg@ziepe.ca>,
	Christian Benvenuti <benve@cisco.com>,
	Nelson Escobar <neescoba@cisco.com>,
	Bernard Metzler <bmt@zurich.ibm.com>, linux-rdma@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] RDMA: Don't use %pK through printk
Message-ID: <20250409165859.GM199604@unreal>
References: <20250407-restricted-pointers-infiniband-v1-1-22b20504b84d@linutronix.de>
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In-Reply-To: <20250407-restricted-pointers-infiniband-v1-1-22b20504b84d@linutronix.de>

On Mon, Apr 07, 2025 at 10:25:09AM +0200, Thomas Weißschuh wrote:
> In the past %pK was preferable to %p as it would not leak raw pointer
> values into the kernel log.
> Since commit ad67b74d2469 ("printk: hash addresses printed with %p")
> the regular %p has been improved to avoid this issue.
> Furthermore, restricted pointers ("%pK") were never meant to be used
> through printk(). 

Just for the record, this clarification was added in commit:
a48849e2358e ("printk: clarify the documentation for plain pointer printing"), in 2021.

Thanks