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Date:   Sun, 12 Apr 2020 13:51:03 +0100
From:   Jonathan Cameron <jic23@...nel.org>
To:     Alexandru Ardelean <alexandru.ardelean@...log.com>
Cc:     <linux-iio@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4/8] iio: core: drop devm_iio_trigger_unregister() API
 call

On Thu, 27 Feb 2020 15:52:23 +0200
Alexandru Ardelean <alexandru.ardelean@...log.com> wrote:

> It's unused so far, so it can't be removed. Also makes sense to remove it
> to discourage weird uses of this call during review.
> 
> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@...log.com>
Applied.

Thanks,

Jonathan

> ---
>  .../driver-api/driver-model/devres.rst        |  1 -
>  Documentation/driver-api/iio/triggers.rst     |  1 -
>  drivers/iio/industrialio-trigger.c            | 21 -------------------
>  include/linux/iio/trigger.h                   |  3 ---
>  4 files changed, 26 deletions(-)
> 
> diff --git a/Documentation/driver-api/driver-model/devres.rst b/Documentation/driver-api/driver-model/devres.rst
> index 6ae6c67dfec0..f638a035e6d2 100644
> --- a/Documentation/driver-api/driver-model/devres.rst
> +++ b/Documentation/driver-api/driver-model/devres.rst
> @@ -291,7 +291,6 @@ IIO
>    devm_iio_trigger_alloc()
>    devm_iio_trigger_free()
>    devm_iio_trigger_register()
> -  devm_iio_trigger_unregister()
>    devm_iio_channel_get()
>    devm_iio_channel_release()
>    devm_iio_channel_get_all()
> diff --git a/Documentation/driver-api/iio/triggers.rst b/Documentation/driver-api/iio/triggers.rst
> index 5c2156de6284..160faa810d12 100644
> --- a/Documentation/driver-api/iio/triggers.rst
> +++ b/Documentation/driver-api/iio/triggers.rst
> @@ -6,7 +6,6 @@ Triggers
>  * :c:func:`devm_iio_trigger_alloc` — Resource-managed iio_trigger_alloc
>  * :c:func:`devm_iio_trigger_free` — Resource-managed iio_trigger_free
>  * :c:func:`devm_iio_trigger_register` — Resource-managed iio_trigger_register
> -* :c:func:`devm_iio_trigger_unregister` — Resource-managed
>    iio_trigger_unregister
>  * :c:func:`iio_trigger_validate_own_device` — Check if a trigger and IIO
>    device belong to the same device
> diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c
> index 3908a9a90035..611f608a9da2 100644
> --- a/drivers/iio/industrialio-trigger.c
> +++ b/drivers/iio/industrialio-trigger.c
> @@ -673,9 +673,6 @@ static void devm_iio_trigger_unreg(struct device *dev, void *res)
>   * calls iio_trigger_register() internally. Refer to that function for more
>   * information.
>   *
> - * If an iio_trigger registered with this function needs to be unregistered
> - * separately, devm_iio_trigger_unregister() must be used.
> - *
>   * RETURNS:
>   * 0 on success, negative error number on failure.
>   */
> @@ -701,24 +698,6 @@ int __devm_iio_trigger_register(struct device *dev,
>  }
>  EXPORT_SYMBOL_GPL(__devm_iio_trigger_register);
>  
> -/**
> - * devm_iio_trigger_unregister - Resource-managed iio_trigger_unregister()
> - * @dev:	device this iio_trigger belongs to
> - * @trig_info:	the trigger associated with the device
> - *
> - * Unregister trigger registered with devm_iio_trigger_register().
> - */
> -void devm_iio_trigger_unregister(struct device *dev,
> -				 struct iio_trigger *trig_info)
> -{
> -	int rc;
> -
> -	rc = devres_release(dev, devm_iio_trigger_unreg, devm_iio_trigger_match,
> -			    trig_info);
> -	WARN_ON(rc);
> -}
> -EXPORT_SYMBOL_GPL(devm_iio_trigger_unregister);
> -
>  bool iio_trigger_using_own(struct iio_dev *indio_dev)
>  {
>  	return indio_dev->trig->attached_own_device;
> diff --git a/include/linux/iio/trigger.h b/include/linux/iio/trigger.h
> index 84995e2967ac..cad8325903f9 100644
> --- a/include/linux/iio/trigger.h
> +++ b/include/linux/iio/trigger.h
> @@ -141,9 +141,6 @@ int __devm_iio_trigger_register(struct device *dev,
>   **/
>  void iio_trigger_unregister(struct iio_trigger *trig_info);
>  
> -void devm_iio_trigger_unregister(struct device *dev,
> -				 struct iio_trigger *trig_info);
> -
>  /**
>   * iio_trigger_set_immutable() - set an immutable trigger on destination
>   *

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