linux-kernel - RE: [Intel-wired-lan] [PATCH net-next v3 8/9] drivers: Add support for DPLL reference count tracking

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Message-ID: <PH3PPF7A88A980A191EB58AD297491FCC18E59FA@PH3PPF7A88A980A.namprd11.prod.outlook.com>
Date: Fri, 30 Jan 2026 17:52:37 +0000
From: "Loktionov, Aleksandr" <aleksandr.loktionov@...el.com>
To: "Vecera, Ivan" <ivecera@...hat.com>, "netdev@...r.kernel.org"
	<netdev@...r.kernel.org>
CC: "Lobakin, Aleksander" <aleksander.lobakin@...el.com>, Andrew Lunn
	<andrew+netdev@...n.ch>, "Kubalewski, Arkadiusz"
	<arkadiusz.kubalewski@...el.com>, "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, "Jiri
 Pirko" <jiri@...nulli.us>, Jonathan Lemon <jonathan.lemon@...il.com>, "Leon
 Romanovsky" <leon@...nel.org>, Mark Bloch <mbloch@...dia.com>, Paolo Abeni
	<pabeni@...hat.com>, Prathosh Satish <Prathosh.Satish@...rochip.com>,
	"Kitszel, Przemyslaw" <przemyslaw.kitszel@...el.com>, Richard Cochran
	<richardcochran@...il.com>, Saeed Mahameed <saeedm@...dia.com>, Tariq Toukan
	<tariqt@...dia.com>, "Nguyen, Anthony L" <anthony.l.nguyen@...el.com>, "Vadim
 Fedorenko" <vadim.fedorenko@...ux.dev>, "intel-wired-lan@...ts.osuosl.org"
	<intel-wired-lan@...ts.osuosl.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "linux-rdma@...r.kernel.org"
	<linux-rdma@...r.kernel.org>
Subject: RE: [Intel-wired-lan] [PATCH net-next v3 8/9] drivers: Add support
 for DPLL reference count tracking



> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf
> Of Ivan Vecera
> Sent: Friday, January 30, 2026 5:54 PM
> To: netdev@...r.kernel.org
> Cc: Lobakin, Aleksander <aleksander.lobakin@...el.com>; Andrew Lunn
> <andrew+netdev@...n.ch>; Kubalewski, Arkadiusz
> <arkadiusz.kubalewski@...el.com>; David S. Miller
> <davem@...emloft.net>; Eric Dumazet <edumazet@...gle.com>; Jakub
> Kicinski <kuba@...nel.org>; Jiri Pirko <jiri@...nulli.us>; Jonathan
> Lemon <jonathan.lemon@...il.com>; Leon Romanovsky <leon@...nel.org>;
> Mark Bloch <mbloch@...dia.com>; Paolo Abeni <pabeni@...hat.com>;
> Prathosh Satish <Prathosh.Satish@...rochip.com>; Kitszel, Przemyslaw
> <przemyslaw.kitszel@...el.com>; Richard Cochran
> <richardcochran@...il.com>; Saeed Mahameed <saeedm@...dia.com>; Tariq
> Toukan <tariqt@...dia.com>; Nguyen, Anthony L
> <anthony.l.nguyen@...el.com>; Vadim Fedorenko
> <vadim.fedorenko@...ux.dev>; intel-wired-lan@...ts.osuosl.org; linux-
> kernel@...r.kernel.org; linux-rdma@...r.kernel.org
> Subject: [Intel-wired-lan] [PATCH net-next v3 8/9] drivers: Add
> support for DPLL reference count tracking
> 
> Update existing DPLL drivers to utilize the DPLL reference count
> tracking infrastructure.
> 
> Add dpll_tracker fields to the drivers' internal device and pin
> structures. Pass pointers to these trackers when calling
> dpll_device_get/put() and dpll_pin_get/put().
> 
> This allows developers to inspect the specific references held by this
> driver via debugfs when CONFIG_DPLL_REFCNT_TRACKER is enabled, aiding
> in the debugging of resource leaks.
> 
> Signed-off-by: Ivan Vecera <ivecera@...hat.com>
> ---
>  drivers/dpll/zl3073x/dpll.c                    | 14 ++++++++------
>  drivers/dpll/zl3073x/dpll.h                    |  2 ++
>  drivers/net/ethernet/intel/ice/ice_dpll.c      | 15 ++++++++-------
>  drivers/net/ethernet/intel/ice/ice_dpll.h      |  4 ++++
>  drivers/net/ethernet/mellanox/mlx5/core/dpll.c | 15 +++++++++------
>  drivers/ptp/ptp_ocp.c                          | 17 ++++++++++-------
>  6 files changed, 41 insertions(+), 26 deletions(-)
> 
> diff --git a/drivers/dpll/zl3073x/dpll.c b/drivers/dpll/zl3073x/dpll.c
> index 8788bcab7ec53..a99d143a7acde 100644
> --- a/drivers/dpll/zl3073x/dpll.c
> +++ b/drivers/dpll/zl3073x/dpll.c
> @@ -29,6 +29,7 @@
>   * @list: this DPLL pin list entry

...

> --
> 2.52.0

Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@...el.com>