diff mbox series

[08/15] iio: buffer-dma: split iio_dma_buffer_fileio_free() function

Message ID 20211115141925.60164-9-paul@crapouillou.net (mailing list archive)
State Changes Requested
Headers show
Series iio: buffer-dma: write() and new DMABUF based API | expand

Commit Message

Paul Cercueil Nov. 15, 2021, 2:19 p.m. UTC 
From: Alexandru Ardelean <alexandru.ardelean@analog.com>

A part of the logic in the iio_dma_buffer_exit() is required for the change
to add mmap support to IIO buffers.
This change splits the logic into a separate function, which will be
re-used later.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
 drivers/iio/buffer/industrialio-buffer-dma.c | 39 +++++++++++---------
 1 file changed, 22 insertions(+), 17 deletions(-)

Comments

Alexandru Ardelean Nov. 16, 2021, 10:59 a.m. UTC | #1 
On Mon, Nov 15, 2021 at 4:20 PM Paul Cercueil <paul@crapouillou.net> wrote:
>
> From: Alexandru Ardelean <alexandru.ardelean@analog.com>
>
> A part of the logic in the iio_dma_buffer_exit() is required for the change
> to add mmap support to IIO buffers.
> This change splits the logic into a separate function, which will be
> re-used later.
>

Not sure how the protocol is here, since my old @analog.com email
isn't working anymore.

But:

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>

Thanks :)
Alex

> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
> Signed-off-by: Paul Cercueil <paul@crapouillou.net>
> ---
>  drivers/iio/buffer/industrialio-buffer-dma.c | 39 +++++++++++---------
>  1 file changed, 22 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/iio/buffer/industrialio-buffer-dma.c b/drivers/iio/buffer/industrialio-buffer-dma.c
> index eeeed6b2e0cf..eb8cfd3af030 100644
> --- a/drivers/iio/buffer/industrialio-buffer-dma.c
> +++ b/drivers/iio/buffer/industrialio-buffer-dma.c
> @@ -358,6 +358,27 @@ int iio_dma_buffer_request_update(struct iio_buffer *buffer)
>  }
>  EXPORT_SYMBOL_GPL(iio_dma_buffer_request_update);
>
> +static void iio_dma_buffer_fileio_free(struct iio_dma_buffer_queue *queue)
> +{
> +       unsigned int i;
> +
> +       spin_lock_irq(&queue->list_lock);
> +       for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
> +               if (!queue->fileio.blocks[i])
> +                       continue;
> +               queue->fileio.blocks[i]->state = IIO_BLOCK_STATE_DEAD;
> +       }
> +       spin_unlock_irq(&queue->list_lock);
> +
> +       for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
> +               if (!queue->fileio.blocks[i])
> +                       continue;
> +               iio_buffer_block_put(queue->fileio.blocks[i]);
> +               queue->fileio.blocks[i] = NULL;
> +       }
> +       queue->fileio.active_block = NULL;
> +}
> +
>  static void iio_dma_buffer_submit_block(struct iio_dma_buffer_queue *queue,
>         struct iio_dma_buffer_block *block)
>  {
> @@ -681,25 +702,9 @@ EXPORT_SYMBOL_GPL(iio_dma_buffer_init);
>   */
>  void iio_dma_buffer_exit(struct iio_dma_buffer_queue *queue)
>  {
> -       unsigned int i;
> -
>         mutex_lock(&queue->lock);
>
> -       spin_lock_irq(&queue->list_lock);
> -       for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
> -               if (!queue->fileio.blocks[i])
> -                       continue;
> -               queue->fileio.blocks[i]->state = IIO_BLOCK_STATE_DEAD;
> -       }
> -       spin_unlock_irq(&queue->list_lock);
> -
> -       for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
> -               if (!queue->fileio.blocks[i])
> -                       continue;
> -               iio_buffer_block_put(queue->fileio.blocks[i]);
> -               queue->fileio.blocks[i] = NULL;
> -       }
> -       queue->fileio.active_block = NULL;
> +       iio_dma_buffer_fileio_free(queue);
>         queue->ops = NULL;
>
>         mutex_unlock(&queue->lock);
> --
> 2.33.0
>
Jonathan Cameron Nov. 21, 2021, 1:49 p.m. UTC | #2 
On Tue, 16 Nov 2021 12:59:30 +0200
Alexandru Ardelean <ardeleanalex@gmail.com> wrote:

> On Mon, Nov 15, 2021 at 4:20 PM Paul Cercueil <paul@crapouillou.net> wrote:
> >
> > From: Alexandru Ardelean <alexandru.ardelean@analog.com>
> >
> > A part of the logic in the iio_dma_buffer_exit() is required for the change
> > to add mmap support to IIO buffers.
> > This change splits the logic into a separate function, which will be
> > re-used later.
> >  
> 
> Not sure how the protocol is here, since my old @analog.com email
> isn't working anymore.
> 
> But:
> 
> Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>

If you want to both document your email address change and make various scripts
find you more easily, send a patch for .mailmap

In meantime we can probably leave your original sign off in place but add
a Cc: with an up to date email address. That will reflect that the sign off
for this was (I assume) given back when you were at Analog.

> 
> Thanks :)
> Alex
> 
> > Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
> > Signed-off-by: Paul Cercueil <paul@crapouillou.net>
> > ---
> >  drivers/iio/buffer/industrialio-buffer-dma.c | 39 +++++++++++---------
> >  1 file changed, 22 insertions(+), 17 deletions(-)
> >
> > diff --git a/drivers/iio/buffer/industrialio-buffer-dma.c b/drivers/iio/buffer/industrialio-buffer-dma.c
> > index eeeed6b2e0cf..eb8cfd3af030 100644
> > --- a/drivers/iio/buffer/industrialio-buffer-dma.c
> > +++ b/drivers/iio/buffer/industrialio-buffer-dma.c
> > @@ -358,6 +358,27 @@ int iio_dma_buffer_request_update(struct iio_buffer *buffer)
> >  }
> >  EXPORT_SYMBOL_GPL(iio_dma_buffer_request_update);
> >
> > +static void iio_dma_buffer_fileio_free(struct iio_dma_buffer_queue *queue)
> > +{
> > +       unsigned int i;
> > +
> > +       spin_lock_irq(&queue->list_lock);
> > +       for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
> > +               if (!queue->fileio.blocks[i])
> > +                       continue;
> > +               queue->fileio.blocks[i]->state = IIO_BLOCK_STATE_DEAD;
> > +       }
> > +       spin_unlock_irq(&queue->list_lock);
> > +
> > +       for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
> > +               if (!queue->fileio.blocks[i])
> > +                       continue;
> > +               iio_buffer_block_put(queue->fileio.blocks[i]);
> > +               queue->fileio.blocks[i] = NULL;
> > +       }
> > +       queue->fileio.active_block = NULL;
> > +}
> > +
> >  static void iio_dma_buffer_submit_block(struct iio_dma_buffer_queue *queue,
> >         struct iio_dma_buffer_block *block)
> >  {
> > @@ -681,25 +702,9 @@ EXPORT_SYMBOL_GPL(iio_dma_buffer_init);
> >   */
> >  void iio_dma_buffer_exit(struct iio_dma_buffer_queue *queue)
> >  {
> > -       unsigned int i;
> > -
> >         mutex_lock(&queue->lock);
> >
> > -       spin_lock_irq(&queue->list_lock);
> > -       for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
> > -               if (!queue->fileio.blocks[i])
> > -                       continue;
> > -               queue->fileio.blocks[i]->state = IIO_BLOCK_STATE_DEAD;
> > -       }
> > -       spin_unlock_irq(&queue->list_lock);
> > -
> > -       for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
> > -               if (!queue->fileio.blocks[i])
> > -                       continue;
> > -               iio_buffer_block_put(queue->fileio.blocks[i]);
> > -               queue->fileio.blocks[i] = NULL;
> > -       }
> > -       queue->fileio.active_block = NULL;
> > +       iio_dma_buffer_fileio_free(queue);
> >         queue->ops = NULL;
> >
> >         mutex_unlock(&queue->lock);
> > --
> > 2.33.0
> >
diff mbox series

Patch

diff --git a/drivers/iio/buffer/industrialio-buffer-dma.c b/drivers/iio/buffer/industrialio-buffer-dma.c
index eeeed6b2e0cf..eb8cfd3af030 100644
--- a/drivers/iio/buffer/industrialio-buffer-dma.c
+++ b/drivers/iio/buffer/industrialio-buffer-dma.c
@@ -358,6 +358,27 @@  int iio_dma_buffer_request_update(struct iio_buffer *buffer)
 }
 EXPORT_SYMBOL_GPL(iio_dma_buffer_request_update);
 
+static void iio_dma_buffer_fileio_free(struct iio_dma_buffer_queue *queue)
+{
+	unsigned int i;
+
+	spin_lock_irq(&queue->list_lock);
+	for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
+		if (!queue->fileio.blocks[i])
+			continue;
+		queue->fileio.blocks[i]->state = IIO_BLOCK_STATE_DEAD;
+	}
+	spin_unlock_irq(&queue->list_lock);
+
+	for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
+		if (!queue->fileio.blocks[i])
+			continue;
+		iio_buffer_block_put(queue->fileio.blocks[i]);
+		queue->fileio.blocks[i] = NULL;
+	}
+	queue->fileio.active_block = NULL;
+}
+
 static void iio_dma_buffer_submit_block(struct iio_dma_buffer_queue *queue,
 	struct iio_dma_buffer_block *block)
 {
@@ -681,25 +702,9 @@  EXPORT_SYMBOL_GPL(iio_dma_buffer_init);
  */
 void iio_dma_buffer_exit(struct iio_dma_buffer_queue *queue)
 {
-	unsigned int i;
-
 	mutex_lock(&queue->lock);
 
-	spin_lock_irq(&queue->list_lock);
-	for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
-		if (!queue->fileio.blocks[i])
-			continue;
-		queue->fileio.blocks[i]->state = IIO_BLOCK_STATE_DEAD;
-	}
-	spin_unlock_irq(&queue->list_lock);
-
-	for (i = 0; i < ARRAY_SIZE(queue->fileio.blocks); i++) {
-		if (!queue->fileio.blocks[i])
-			continue;
-		iio_buffer_block_put(queue->fileio.blocks[i]);
-		queue->fileio.blocks[i] = NULL;
-	}
-	queue->fileio.active_block = NULL;
+	iio_dma_buffer_fileio_free(queue);
 	queue->ops = NULL;
 
 	mutex_unlock(&queue->lock);