linux-kernel - Re: [PATCH 8/8] iio: buffer: drop devm_iio_kfifo

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Date:   Sun, 12 Apr 2020 14:01:04 +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 8/8] iio: buffer: drop devm_iio_kfifo_free() API call

On Thu, 27 Feb 2020 15:52:27 +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 with the can't -> can above fixed up.

Thanks,

Jonathan

> ---
>  .../driver-api/driver-model/devres.rst        |  1 -
>  drivers/iio/buffer/kfifo_buf.c                | 22 -------------------
>  include/linux/iio/kfifo_buf.h                 |  1 -
>  3 files changed, 24 deletions(-)
> 
> diff --git a/Documentation/driver-api/driver-model/devres.rst b/Documentation/driver-api/driver-model/devres.rst
> index 10ccebe9f7c1..91b0b8e5556c 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_register()
>    devm_iio_kfifo_allocate()
> -  devm_iio_kfifo_free()
>    devm_iio_triggered_buffer_setup()
>    devm_iio_trigger_alloc()
>    devm_iio_trigger_register()
> diff --git a/drivers/iio/buffer/kfifo_buf.c b/drivers/iio/buffer/kfifo_buf.c
> index 3150f8ab984b..1359abed3b31 100644
> --- a/drivers/iio/buffer/kfifo_buf.c
> +++ b/drivers/iio/buffer/kfifo_buf.c
> @@ -179,16 +179,6 @@ static void devm_iio_kfifo_release(struct device *dev, void *res)
>  	iio_kfifo_free(*(struct iio_buffer **)res);
>  }
>  
> -static int devm_iio_kfifo_match(struct device *dev, void *res, void *data)
> -{
> -	struct iio_buffer **r = res;
> -
> -	if (WARN_ON(!r || !*r))
> -		return 0;
> -
> -	return *r == data;
> -}
> -
>  /**
>   * devm_iio_fifo_allocate - Resource-managed iio_kfifo_allocate()
>   * @dev:		Device to allocate kfifo buffer for
> @@ -216,16 +206,4 @@ struct iio_buffer *devm_iio_kfifo_allocate(struct device *dev)
>  }
>  EXPORT_SYMBOL(devm_iio_kfifo_allocate);
>  
> -/**
> - * devm_iio_fifo_free - Resource-managed iio_kfifo_free()
> - * @dev:		Device the buffer belongs to
> - * @r:			The buffer associated with the device
> - */
> -void devm_iio_kfifo_free(struct device *dev, struct iio_buffer *r)
> -{
> -	WARN_ON(devres_release(dev, devm_iio_kfifo_release,
> -			       devm_iio_kfifo_match, r));
> -}
> -EXPORT_SYMBOL(devm_iio_kfifo_free);
> -
>  MODULE_LICENSE("GPL");
> diff --git a/include/linux/iio/kfifo_buf.h b/include/linux/iio/kfifo_buf.h
> index 764659e01b68..1fc1efa7799d 100644
> --- a/include/linux/iio/kfifo_buf.h
> +++ b/include/linux/iio/kfifo_buf.h
> @@ -9,6 +9,5 @@ struct iio_buffer *iio_kfifo_allocate(void);
>  void iio_kfifo_free(struct iio_buffer *r);
>  
>  struct iio_buffer *devm_iio_kfifo_allocate(struct device *dev);
> -void devm_iio_kfifo_free(struct device *dev, struct iio_buffer *r);
>  
>  #endif