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

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Date:   Sun, 12 Apr 2020 14:21:30 +0000
From:   "Ardelean, Alexandru" <alexandru.Ardelean@...log.com>
To:     "jic23@...nel.org" <jic23@...nel.org>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>
Subject: Re: [PATCH 8/8] iio: buffer: drop devm_iio_kfifo_free() API call

On Sun, 2020-04-12 at 14:01 +0100, Jonathan Cameron wrote:
> [External]
> 
> 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 for noticing the typo.
I should really allocated more brain power to commit comments.
I think I have a bad habit of powering down my brain for the comments, after
doing the code.


> 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