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Date:   Sun, 12 Apr 2020 12:55:10 +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 1/8] iio: core: drop devm_iio_device_unregister() API
 call

On Thu, 27 Feb 2020 15:52:20 +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>
Time to pick these up I think.  They've sat here a while and no
one has commented + I can't think of any disadvantages.

Hence,

Applied to the togreg  branch of iio.git and pushed out as testing for
the autobuilders to play with them.

Thanks,

Jonathan

> ---
>  .../driver-api/driver-model/devres.rst          |  1 -
>  drivers/iio/industrialio-core.c                 | 17 -----------------
>  include/linux/iio/iio.h                         |  4 ----
>  3 files changed, 22 deletions(-)
> 
> diff --git a/Documentation/driver-api/driver-model/devres.rst b/Documentation/driver-api/driver-model/devres.rst
> index 46c13780994c..0580c64ebdfd 100644
> --- a/Documentation/driver-api/driver-model/devres.rst
> +++ b/Documentation/driver-api/driver-model/devres.rst
> @@ -286,7 +286,6 @@ IIO
>    devm_iio_device_alloc()
>    devm_iio_device_free()
>    devm_iio_device_register()
> -  devm_iio_device_unregister()
>    devm_iio_kfifo_allocate()
>    devm_iio_kfifo_free()
>    devm_iio_triggered_buffer_setup()
> diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
> index 0b14666dff09..e4011f8431f9 100644
> --- a/drivers/iio/industrialio-core.c
> +++ b/drivers/iio/industrialio-core.c
> @@ -1823,23 +1823,6 @@ int __devm_iio_device_register(struct device *dev, struct iio_dev *indio_dev,
>  }
>  EXPORT_SYMBOL_GPL(__devm_iio_device_register);
>  
> -/**
> - * devm_iio_device_unregister - Resource-managed iio_device_unregister()
> - * @dev:	Device this iio_dev belongs to
> - * @indio_dev:	the iio_dev associated with the device
> - *
> - * Unregister iio_dev registered with devm_iio_device_register().
> - */
> -void devm_iio_device_unregister(struct device *dev, struct iio_dev *indio_dev)
> -{
> -	int rc;
> -
> -	rc = devres_release(dev, devm_iio_device_unreg,
> -			    devm_iio_device_match, indio_dev);
> -	WARN_ON(rc);
> -}
> -EXPORT_SYMBOL_GPL(devm_iio_device_unregister);
> -
>  /**
>   * iio_device_claim_direct_mode - Keep device in direct mode
>   * @indio_dev:	the iio_dev associated with the device
> diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
> index 862ce0019eba..0eb9e8d7ec68 100644
> --- a/include/linux/iio/iio.h
> +++ b/include/linux/iio/iio.h
> @@ -591,9 +591,6 @@ void iio_device_unregister(struct iio_dev *indio_dev);
>   * calls iio_device_register() internally. Refer to that function for more
>   * information.
>   *
> - * If an iio_dev registered with this function needs to be unregistered
> - * separately, devm_iio_device_unregister() must be used.
> - *
>   * RETURNS:
>   * 0 on success, negative error number on failure.
>   */
> @@ -601,7 +598,6 @@ void iio_device_unregister(struct iio_dev *indio_dev);
>  	__devm_iio_device_register((dev), (indio_dev), THIS_MODULE);
>  int __devm_iio_device_register(struct device *dev, struct iio_dev *indio_dev,
>  			       struct module *this_mod);
> -void devm_iio_device_unregister(struct device *dev, struct iio_dev *indio_dev);
>  int iio_push_event(struct iio_dev *indio_dev, u64 ev_code, s64 timestamp);
>  int iio_device_claim_direct_mode(struct iio_dev *indio_dev);
>  void iio_device_release_direct_mode(struct iio_dev *indio_dev);

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