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iio: buffer: rename 'read_first_n' callback to 'read'

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It is implied that 'read' will read the first n bytes and not e.g. bytes
only from offsets within the buffer that are a prime number.

This change is non-functional, mostly just a rename.
A secondary intent with this patch is to make room later to add a write
callback.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Lars-Peter Clausen
2019-12-11 12:43:00 +02:00
committed by Jonathan Cameron
parent 4538c18568
commit f6d4033d2a
7 changed files with 16 additions and 19 deletions
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2
drivers/iio/buffer/industrialio-buffer-dma.c
View File

@@ -476,7 +476,7 @@ static struct iio_dma_buffer_block *iio_dma_buffer_dequeue(
* @n: Number of bytes to read
* @user_buffer: Userspace buffer to copy the data to
*
* Should be used as the read_first_n callback for iio_buffer_access_ops
* Should be used as the read callback for iio_buffer_access_ops
* struct for DMA buffers.
*/
int iio_dma_buffer_read(struct iio_buffer *buffer, size_t n,

2
drivers/iio/buffer/industrialio-buffer-dmaengine.c
View File

@@ -109,7 +109,7 @@ static void iio_dmaengine_buffer_release(struct iio_buffer *buf)
}
static const struct iio_buffer_access_funcs iio_dmaengine_buffer_ops = {
.read_first_n = iio_dma_buffer_read,
.read = iio_dma_buffer_read,
.set_bytes_per_datum = iio_dma_buffer_set_bytes_per_datum,
.set_length = iio_dma_buffer_set_length,
.request_update = iio_dma_buffer_request_update,

5
drivers/iio/buffer/kfifo_buf.c
View File

@@ -98,8 +98,7 @@ static int iio_store_to_kfifo(struct iio_buffer *r,
return 0;
}
static int iio_read_first_n_kfifo(struct iio_buffer *r,
size_t n, char __user *buf)
static int iio_read_kfifo(struct iio_buffer *r, size_t n, char __user *buf)
{
int ret, copied;
struct iio_kfifo *kf = iio_to_kfifo(r);
@@ -141,7 +140,7 @@ static void iio_kfifo_buffer_release(struct iio_buffer *buffer)
static const struct iio_buffer_access_funcs kfifo_access_funcs = {
.store_to = &iio_store_to_kfifo,
.read_first_n = &iio_read_first_n_kfifo,
.read = &iio_read_kfifo,
.data_available = iio_kfifo_buf_data_available,
.request_update = &iio_request_update_kfifo,
.set_bytes_per_datum = &iio_set_bytes_per_datum_kfifo,