linux-kernel - RE: [Intel-wired-lan] [PATCH net-next 0/7] net: Don't use %pK through printk

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Message-ID: <SJ0PR11MB5866CD750C4FE845279F51B2E5B32@SJ0PR11MB5866.namprd11.prod.outlook.com>
Date: Mon, 14 Apr 2025 16:17:04 +0000
From: "Loktionov, Aleksandr" <aleksandr.loktionov@...el.com>
To: Thomas Weißschuh <thomas.weissschuh@...utronix.de>,
	Jeff Johnson <jjohnson@...nel.org>, Loic Poulain <loic.poulain@...aro.org>,
	Brian Norris <briannorris@...omium.org>, Francesco Dolcini
	<francesco@...cini.it>, "Nguyen, Anthony L" <anthony.l.nguyen@...el.com>,
	"Kitszel, Przemyslaw" <przemyslaw.kitszel@...el.com>, Andrew Lunn
	<andrew+netdev@...n.ch>, "David S. Miller" <davem@...emloft.net>, "Dumazet,
 Eric" <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni
	<pabeni@...hat.com>, Saeed Mahameed <saeedm@...dia.com>, Leon Romanovsky
	<leon@...nel.org>, Tariq Toukan <tariqt@...dia.com>
CC: "ath10k@...ts.infradead.org" <ath10k@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"ath11k@...ts.infradead.org" <ath11k@...ts.infradead.org>,
	"ath12k@...ts.infradead.org" <ath12k@...ts.infradead.org>,
	"wcn36xx@...ts.infradead.org" <wcn36xx@...ts.infradead.org>,
	"linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
	"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>
Subject: RE: [Intel-wired-lan] [PATCH net-next 0/7] net: Don't use %pK through
 printk



> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf Of
> Thomas Weißschuh
> Sent: Monday, April 14, 2025 10:26 AM
> To: Jeff Johnson <jjohnson@...nel.org>; Loic Poulain
> <loic.poulain@...aro.org>; Brian Norris <briannorris@...omium.org>;
> Francesco Dolcini <francesco@...cini.it>; Nguyen, Anthony L
> <anthony.l.nguyen@...el.com>; Kitszel, Przemyslaw
> <przemyslaw.kitszel@...el.com>; Andrew Lunn <andrew+netdev@...n.ch>;
> David S. Miller <davem@...emloft.net>; Dumazet, Eric
> <edumazet@...gle.com>; Jakub Kicinski <kuba@...nel.org>; Paolo Abeni
> <pabeni@...hat.com>; Saeed Mahameed <saeedm@...dia.com>; Leon
> Romanovsky <leon@...nel.org>; Tariq Toukan <tariqt@...dia.com>
> Cc: ath10k@...ts.infradead.org; linux-kernel@...r.kernel.org;
> ath11k@...ts.infradead.org; ath12k@...ts.infradead.org;
> wcn36xx@...ts.infradead.org; linux-wireless@...r.kernel.org; intel-wired-
> lan@...ts.osuosl.org; netdev@...r.kernel.org; linux-rdma@...r.kernel.org;
> Thomas Weißschuh <thomas.weissschuh@...utronix.de>
> Subject: [Intel-wired-lan] [PATCH net-next 0/7] net: Don't use %pK through
> printk
> 
> 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(). They can still unintentionally leak raw pointers or acquire
> sleeping looks in atomic contexts.
> 
> Switch to the regular pointer formatting which is safer and easier to reason
> about.
> There are still a few users of %pK left, but these use it through seq_file, for
> which its usage is safe.
> 
> Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
> ---
> Thomas Weißschuh (7):
>       wifi: ath10k: Don't use %pK through printk
>       wifi: ath11k: Don't use %pK through printk
>       wifi: ath12k: Don't use %pK through printk
>       wifi: wcn36xx: Don't use %pK through printk
>       wifi: mwifiex: Don't use %pK through printk
>       ice: Don't use %pK through printk or tracepoints
>       net/mlx5: Don't use %pK through tracepoints
> 
>  drivers/net/ethernet/intel/ice/ice_main.c          |  2 +-
>  drivers/net/ethernet/intel/ice/ice_trace.h         | 10 +++++-----
>  .../mlx5/core/sf/dev/diag/dev_tracepoint.h         |  2 +-
>  drivers/net/wireless/ath/ath10k/ahb.c              |  2 +-
>  drivers/net/wireless/ath/ath10k/bmi.c              |  6 +++---
>  drivers/net/wireless/ath/ath10k/ce.c               |  4 ++--
>  drivers/net/wireless/ath/ath10k/core.c             |  4 ++--
>  drivers/net/wireless/ath/ath10k/htc.c              |  6 +++---
>  drivers/net/wireless/ath/ath10k/htt_rx.c           |  2 +-
>  drivers/net/wireless/ath/ath10k/mac.c              | 22 +++++++++++-----------
>  drivers/net/wireless/ath/ath10k/pci.c              |  2 +-
>  drivers/net/wireless/ath/ath10k/testmode.c         |  4 ++--
>  drivers/net/wireless/ath/ath10k/txrx.c             |  2 +-
>  drivers/net/wireless/ath/ath10k/usb.c              |  4 ++--
>  drivers/net/wireless/ath/ath10k/wmi.c              |  4 ++--
>  drivers/net/wireless/ath/ath11k/testmode.c         |  2 +-
>  drivers/net/wireless/ath/ath12k/testmode.c         |  4 ++--
>  drivers/net/wireless/ath/wcn36xx/testmode.c        |  2 +-
>  drivers/net/wireless/marvell/mwifiex/pcie.c        |  2 +-
>  19 files changed, 43 insertions(+), 43 deletions(-)
> ---
> base-commit: 8ffd015db85fea3e15a77027fda6c02ced4d2444
> change-id: 20250404-restricted-pointers-net-a8cddd03e5d1
> 
> Best regards,
> --
> Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@...el.com>