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iio: buffer: Drop get_length callback

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We already do have the length field in the struct iio_buffer which is
expected to be in sync with the current size of the buffer. And currently
all implementations of the get_length callback either return this field or a
constant number.

This patch removes the get_length callback and replaces all occurrences in
the IIO core with directly accessing the length field of the buffer.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Lars-Peter Clausen
2014-11-26 18:55:17 +01:00
committed by Jonathan Cameron
parent 8d92db2827
commit 374956600e
5 changed files with 6 additions and 25 deletions
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2
include/linux/iio/buffer.h
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@@ -26,7 +26,6 @@ struct iio_buffer;
* @request_update: if a parameter change has been marked, update underlying
* storage.
* @set_bytes_per_datum:set number of bytes per datum
* @get_length: get number of datums in buffer
* @set_length: set number of datums in buffer
* @release: called when the last reference to the buffer is dropped,
* should free all resources allocated by the buffer.
@@ -49,7 +48,6 @@ struct iio_buffer_access_funcs {
int (*request_update)(struct iio_buffer *buffer);
int (*set_bytes_per_datum)(struct iio_buffer *buffer, size_t bpd);
int (*get_length)(struct iio_buffer *buffer);
int (*set_length)(struct iio_buffer *buffer, int length);
void (*release)(struct iio_buffer *buffer);