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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>
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@ -67,7 +67,7 @@ static int iio_dmaengine_buffer_submit_block(struct iio_dma_buffer_queue *queue,
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dma_cookie_t cookie;
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block->bytes_used = min(block->size, dmaengine_buffer->max_size);
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block->bytes_used = rounddown(block->bytes_used,
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block->bytes_used = round_down(block->bytes_used,
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dmaengine_buffer->align);
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desc = dmaengine_prep_slave_single(dmaengine_buffer->chan,
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