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Message-ID: <20240612081503.GA8955@gmail.com>
Date: Wed, 12 Jun 2024 09:15:03 +0100
From: Martin Habets <habetsm.xilinx@...il.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: linux-kernel@...r.kernel.org, Dave Ertman <david.m.ertman@...el.com>,
Ira Weiny <ira.weiny@...el.com>,
"Rafael J. Wysocki" <rafael@...nel.org>,
Sakari Ailus <sakari.ailus@...ux.intel.com>,
Bingbu Cao <bingbu.cao@...el.com>,
Tianshu Qiu <tian.shu.qiu@...el.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Michael Chan <michael.chan@...adcom.com>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Jesse Brandeburg <jesse.brandeburg@...el.com>,
Tony Nguyen <anthony.l.nguyen@...el.com>,
Saeed Mahameed <saeedm@...dia.com>,
Leon Romanovsky <leon@...nel.org>, Tariq Toukan <tariqt@...dia.com>,
Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
Liam Girdwood <lgirdwood@...il.com>,
Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>,
Bard Liao <yung-chuan.liao@...ux.intel.com>,
Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
Daniel Baluta <daniel.baluta@....com>,
Kai Vehmanen <kai.vehmanen@...ux.intel.com>,
Mark Brown <broonie@...nel.org>, Jaroslav Kysela <perex@...ex.cz>,
Takashi Iwai <tiwai@...e.com>,
Richard Cochran <richardcochran@...il.com>,
linux-media@...r.kernel.org, netdev@...r.kernel.org,
intel-wired-lan@...ts.osuosl.org, linux-rdma@...r.kernel.org,
sound-open-firmware@...a-project.org, linux-sound@...r.kernel.org
Subject: Re: [PATCH 1/6] auxbus: make to_auxiliary_drv accept and return a
constant pointer
On Tue, Jun 11, 2024 at 03:01:04PM +0200, Greg Kroah-Hartman wrote:
> In the quest to make struct device constant, start by making
> to_auziliary_drv() return a constant pointer so that drivers that call
> this can be fixed up before the driver core changes.
>
> As the return type previously was not constant, also fix up all callers
> that were assuming that the pointer was not going to be a constant one
> in order to not break the build.
>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Cc: Dave Ertman <david.m.ertman@...el.com>
> Cc: Ira Weiny <ira.weiny@...el.com>
> Cc: "Rafael J. Wysocki" <rafael@...nel.org>
> Cc: Sakari Ailus <sakari.ailus@...ux.intel.com>
> Cc: Bingbu Cao <bingbu.cao@...el.com>
> Cc: Tianshu Qiu <tian.shu.qiu@...el.com>
> Cc: Mauro Carvalho Chehab <mchehab@...nel.org>
> Cc: Michael Chan <michael.chan@...adcom.com>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: Eric Dumazet <edumazet@...gle.com>
> Cc: Jakub Kicinski <kuba@...nel.org>
> Cc: Paolo Abeni <pabeni@...hat.com>
> Cc: Jesse Brandeburg <jesse.brandeburg@...el.com>
> Cc: Tony Nguyen <anthony.l.nguyen@...el.com>
> Cc: Saeed Mahameed <saeedm@...dia.com>
> Cc: Leon Romanovsky <leon@...nel.org>
> Cc: Tariq Toukan <tariqt@...dia.com>
> Cc: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
> Cc: Liam Girdwood <lgirdwood@...il.com>
> Cc: Peter Ujfalusi <peter.ujfalusi@...ux.intel.com>
> Cc: Bard Liao <yung-chuan.liao@...ux.intel.com>
> Cc: Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>
> Cc: Daniel Baluta <daniel.baluta@....com>
> Cc: Kai Vehmanen <kai.vehmanen@...ux.intel.com>
> Cc: Mark Brown <broonie@...nel.org>
> Cc: Jaroslav Kysela <perex@...ex.cz>
> Cc: Takashi Iwai <tiwai@...e.com>
> Cc: Richard Cochran <richardcochran@...il.com>
> Cc: linux-media@...r.kernel.org
> Cc: netdev@...r.kernel.org
> Cc: intel-wired-lan@...ts.osuosl.org
> Cc: linux-rdma@...r.kernel.org
> Cc: sound-open-firmware@...a-project.org
> Cc: linux-sound@...r.kernel.org
> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Reviewed-by: Martin Habets <habetsm.xilinx@...il.com>
> ---
> drivers/base/auxiliary.c | 8 ++++----
> drivers/media/pci/intel/ipu6/ipu6-bus.h | 2 +-
> drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c | 4 ++--
> drivers/net/ethernet/intel/ice/ice_ptp.c | 2 +-
> drivers/net/ethernet/mellanox/mlx5/core/dev.c | 4 ++--
> include/linux/auxiliary_bus.h | 2 +-
> sound/soc/sof/sof-client.c | 4 ++--
> 7 files changed, 13 insertions(+), 13 deletions(-)
>
> diff --git a/drivers/base/auxiliary.c b/drivers/base/auxiliary.c
> index d3a2c40c2f12..5832e31bb77b 100644
> --- a/drivers/base/auxiliary.c
> +++ b/drivers/base/auxiliary.c
> @@ -180,7 +180,7 @@ static const struct auxiliary_device_id *auxiliary_match_id(const struct auxilia
> static int auxiliary_match(struct device *dev, struct device_driver *drv)
> {
> struct auxiliary_device *auxdev = to_auxiliary_dev(dev);
> - struct auxiliary_driver *auxdrv = to_auxiliary_drv(drv);
> + const struct auxiliary_driver *auxdrv = to_auxiliary_drv(drv);
>
> return !!auxiliary_match_id(auxdrv->id_table, auxdev);
> }
> @@ -203,7 +203,7 @@ static const struct dev_pm_ops auxiliary_dev_pm_ops = {
>
> static int auxiliary_bus_probe(struct device *dev)
> {
> - struct auxiliary_driver *auxdrv = to_auxiliary_drv(dev->driver);
> + const struct auxiliary_driver *auxdrv = to_auxiliary_drv(dev->driver);
> struct auxiliary_device *auxdev = to_auxiliary_dev(dev);
> int ret;
>
> @@ -222,7 +222,7 @@ static int auxiliary_bus_probe(struct device *dev)
>
> static void auxiliary_bus_remove(struct device *dev)
> {
> - struct auxiliary_driver *auxdrv = to_auxiliary_drv(dev->driver);
> + const struct auxiliary_driver *auxdrv = to_auxiliary_drv(dev->driver);
> struct auxiliary_device *auxdev = to_auxiliary_dev(dev);
>
> if (auxdrv->remove)
> @@ -232,7 +232,7 @@ static void auxiliary_bus_remove(struct device *dev)
>
> static void auxiliary_bus_shutdown(struct device *dev)
> {
> - struct auxiliary_driver *auxdrv = NULL;
> + const struct auxiliary_driver *auxdrv = NULL;
> struct auxiliary_device *auxdev;
>
> if (dev->driver) {
> diff --git a/drivers/media/pci/intel/ipu6/ipu6-bus.h b/drivers/media/pci/intel/ipu6/ipu6-bus.h
> index b26c6aee1621..bb4926dfdf08 100644
> --- a/drivers/media/pci/intel/ipu6/ipu6-bus.h
> +++ b/drivers/media/pci/intel/ipu6/ipu6-bus.h
> @@ -21,7 +21,7 @@ struct ipu6_buttress_ctrl;
>
> struct ipu6_bus_device {
> struct auxiliary_device auxdev;
> - struct auxiliary_driver *auxdrv;
> + const struct auxiliary_driver *auxdrv;
> const struct ipu6_auxdrv_data *auxdrv_data;
> struct list_head list;
> void *pdata;
> diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c
> index ba3fa1c2e5d9..b9e7d3e7b15d 100644
> --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c
> +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.c
> @@ -239,7 +239,7 @@ void bnxt_ulp_stop(struct bnxt *bp)
>
> adev = &aux_priv->aux_dev;
> if (adev->dev.driver) {
> - struct auxiliary_driver *adrv;
> + const struct auxiliary_driver *adrv;
> pm_message_t pm = {};
>
> adrv = to_auxiliary_drv(adev->dev.driver);
> @@ -277,7 +277,7 @@ void bnxt_ulp_start(struct bnxt *bp, int err)
>
> adev = &aux_priv->aux_dev;
> if (adev->dev.driver) {
> - struct auxiliary_driver *adrv;
> + const struct auxiliary_driver *adrv;
>
> adrv = to_auxiliary_drv(adev->dev.driver);
> edev->en_state = bp->state;
> diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c
> index 0f17fc1181d2..7341e7c4ef24 100644
> --- a/drivers/net/ethernet/intel/ice/ice_ptp.c
> +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c
> @@ -2784,7 +2784,7 @@ static struct ice_pf *
> ice_ptp_aux_dev_to_owner_pf(struct auxiliary_device *aux_dev)
> {
> struct ice_ptp_port_owner *ports_owner;
> - struct auxiliary_driver *aux_drv;
> + const struct auxiliary_driver *aux_drv;
> struct ice_ptp *owner_ptp;
>
> if (!aux_dev->dev.driver)
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/dev.c b/drivers/net/ethernet/mellanox/mlx5/core/dev.c
> index 47e7c2639774..9a79674d27f1 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/dev.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/dev.c
> @@ -349,7 +349,7 @@ int mlx5_attach_device(struct mlx5_core_dev *dev)
> {
> struct mlx5_priv *priv = &dev->priv;
> struct auxiliary_device *adev;
> - struct auxiliary_driver *adrv;
> + const struct auxiliary_driver *adrv;
> int ret = 0, i;
>
> devl_assert_locked(priv_to_devlink(dev));
> @@ -406,7 +406,7 @@ void mlx5_detach_device(struct mlx5_core_dev *dev, bool suspend)
> {
> struct mlx5_priv *priv = &dev->priv;
> struct auxiliary_device *adev;
> - struct auxiliary_driver *adrv;
> + const struct auxiliary_driver *adrv;
> pm_message_t pm = {};
> int i;
>
> diff --git a/include/linux/auxiliary_bus.h b/include/linux/auxiliary_bus.h
> index de21d9d24a95..bdff7b85f2ae 100644
> --- a/include/linux/auxiliary_bus.h
> +++ b/include/linux/auxiliary_bus.h
> @@ -203,7 +203,7 @@ static inline struct auxiliary_device *to_auxiliary_dev(struct device *dev)
> return container_of(dev, struct auxiliary_device, dev);
> }
>
> -static inline struct auxiliary_driver *to_auxiliary_drv(struct device_driver *drv)
> +static inline const struct auxiliary_driver *to_auxiliary_drv(const struct device_driver *drv)
> {
> return container_of(drv, struct auxiliary_driver, driver);
> }
> diff --git a/sound/soc/sof/sof-client.c b/sound/soc/sof/sof-client.c
> index 99f74def4ab6..5d6005a88e79 100644
> --- a/sound/soc/sof/sof-client.c
> +++ b/sound/soc/sof/sof-client.c
> @@ -357,7 +357,7 @@ EXPORT_SYMBOL_NS_GPL(sof_client_ipc4_find_module, SND_SOC_SOF_CLIENT);
>
> int sof_suspend_clients(struct snd_sof_dev *sdev, pm_message_t state)
> {
> - struct auxiliary_driver *adrv;
> + const struct auxiliary_driver *adrv;
> struct sof_client_dev *cdev;
>
> mutex_lock(&sdev->ipc_client_mutex);
> @@ -380,7 +380,7 @@ EXPORT_SYMBOL_NS_GPL(sof_suspend_clients, SND_SOC_SOF_CLIENT);
>
> int sof_resume_clients(struct snd_sof_dev *sdev)
> {
> - struct auxiliary_driver *adrv;
> + const struct auxiliary_driver *adrv;
> struct sof_client_dev *cdev;
>
> mutex_lock(&sdev->ipc_client_mutex);
> --
> 2.45.2
>
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