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authorLars-Peter Clausen <lars@metafoo.de>2013-09-15 17:50:00 +0100
committerJonathan Cameron <jic23@kernel.org>2013-09-15 19:02:07 +0100
commit5d65d92045cb7d3b2c45020c0e62d6d1c1d34f37 (patch)
treea996bac655ff390d6331d82f6121c6b7aab7bbdf /drivers/iio/buffer_cb.c
parentc7a22c36805b015fd220f9fd13d0a14207d556e0 (diff)
downloadlinux-5d65d92045cb7d3b2c45020c0e62d6d1c1d34f37.tar.bz2
iio: iio_push_to_buffers(): Change type of 'data' to const void *
Change the type of the 'data' parameter for iio_push_to_buffers() from 'u8 *' to 'const void *'. Drivers typically use the correct type (e.g. __be16 *) for their data buffer. When passing the buffer to iio_push_to_buffers() it needs to be cast to 'u8 *' for the compiler to not complain (and also having to add __force if we want to keep sparse happy as well). Since the buffer implementation should not care about the data layout (except the size of one sample) using a void pointer is the correct thing to do. Also make it const as the buffer implementations are not supposed to modify it. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/buffer_cb.c')
-rw-r--r--drivers/iio/buffer_cb.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/iio/buffer_cb.c b/drivers/iio/buffer_cb.c
index f406889248c8..578f7199ed51 100644
--- a/drivers/iio/buffer_cb.c
+++ b/drivers/iio/buffer_cb.c
@@ -7,12 +7,12 @@
struct iio_cb_buffer {
struct iio_buffer buffer;
- int (*cb)(u8 *data, void *private);
+ int (*cb)(const void *data, void *private);
void *private;
struct iio_channel *channels;
};
-static int iio_buffer_cb_store_to(struct iio_buffer *buffer, u8 *data)
+static int iio_buffer_cb_store_to(struct iio_buffer *buffer, const void *data)
{
struct iio_cb_buffer *cb_buff = container_of(buffer,
struct iio_cb_buffer,
@@ -26,7 +26,7 @@ static const struct iio_buffer_access_funcs iio_cb_access = {
};
struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev,
- int (*cb)(u8 *data,
+ int (*cb)(const void *data,
void *private),
void *private)
{