[PATCH] iio: buffer-dmaengine: remove non managed alloc/free

From: Alexandru Ardelean
Date: Wed Sep 23 2020 - 08:18:35 EST


This is to encourage the use of devm_iio_dmaengine_buffer_alloc().
Currently the managed version of the DMAEngine buffer alloc is the only
function used from this part of the framework.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@xxxxxxxxxx>
---
drivers/iio/buffer/industrialio-buffer-dmaengine.c | 6 ++----
include/linux/iio/buffer-dmaengine.h | 4 ----
2 files changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/iio/buffer/industrialio-buffer-dmaengine.c b/drivers/iio/buffer/industrialio-buffer-dmaengine.c
index 5789bda0745b..93b4e9e6bb55 100644
--- a/drivers/iio/buffer/industrialio-buffer-dmaengine.c
+++ b/drivers/iio/buffer/industrialio-buffer-dmaengine.c
@@ -159,7 +159,7 @@ static const struct attribute *iio_dmaengine_buffer_attrs[] = {
* Once done using the buffer iio_dmaengine_buffer_free() should be used to
* release it.
*/
-struct iio_buffer *iio_dmaengine_buffer_alloc(struct device *dev,
+static struct iio_buffer *iio_dmaengine_buffer_alloc(struct device *dev,
const char *channel)
{
struct dmaengine_buffer *dmaengine_buffer;
@@ -211,7 +211,6 @@ struct iio_buffer *iio_dmaengine_buffer_alloc(struct device *dev,
kfree(dmaengine_buffer);
return ERR_PTR(ret);
}
-EXPORT_SYMBOL(iio_dmaengine_buffer_alloc);

/**
* iio_dmaengine_buffer_free() - Free dmaengine buffer
@@ -219,7 +218,7 @@ EXPORT_SYMBOL(iio_dmaengine_buffer_alloc);
*
* Frees a buffer previously allocated with iio_dmaengine_buffer_alloc().
*/
-void iio_dmaengine_buffer_free(struct iio_buffer *buffer)
+static void iio_dmaengine_buffer_free(struct iio_buffer *buffer)
{
struct dmaengine_buffer *dmaengine_buffer =
iio_buffer_to_dmaengine_buffer(buffer);
@@ -229,7 +228,6 @@ void iio_dmaengine_buffer_free(struct iio_buffer *buffer)

iio_buffer_put(buffer);
}
-EXPORT_SYMBOL_GPL(iio_dmaengine_buffer_free);

static void __devm_iio_dmaengine_buffer_free(struct device *dev, void *res)
{
diff --git a/include/linux/iio/buffer-dmaengine.h b/include/linux/iio/buffer-dmaengine.h
index 0e503db71289..5b502291d6a4 100644
--- a/include/linux/iio/buffer-dmaengine.h
+++ b/include/linux/iio/buffer-dmaengine.h
@@ -10,10 +10,6 @@
struct iio_buffer;
struct device;

-struct iio_buffer *iio_dmaengine_buffer_alloc(struct device *dev,
- const char *channel);
-void iio_dmaengine_buffer_free(struct iio_buffer *buffer);
-
struct iio_buffer *devm_iio_dmaengine_buffer_alloc(struct device *dev,
const char *channel);

--
2.25.1