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iio: buffer-dma: Use round_down() instead of rounddown() 

We know that the buffer's alignment will always be a power of two;
therefore, we can use the faster round_down() macro.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Link: https://lore.kernel.org/r/20211115141925.60164-4-paul@crapouillou.net
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Paul Cercueil 2021-11-15 14:19:13 +00:00 committed by Jonathan Cameron
parent ed14e769f6
commit ab1fb45579
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/buffer/industrialio-buffer-dmaengine.c
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@ -67,7 +67,7 @@ static int iio_dmaengine_buffer_submit_block(struct iio_dma_buffer_queue *queue,
dma_cookie_t cookie;
block->bytes_used = min(block->size, dmaengine_buffer->max_size);
block->bytes_used = rounddown(block->bytes_used,
block->bytes_used = round_down(block->bytes_used,
dmaengine_buffer->align);
desc = dmaengine_prep_slave_single(dmaengine_buffer->chan,