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dmaengine: Refactor dmaengine_check_align() to be bit operations only

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There is no need to have branch and temporary variable in the function.
Simple convert it to be a set of bit and arithmetic operations.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20200226101842.29426-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Andy Shevchenko 2020-02-26 12:18:38 +02:00 committed by Vinod Koul
parent 9065958ee6
commit 88ac039cbe
1 changed files with 1 additions and 8 deletions
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9
include/linux/dmaengine.h
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@ -1155,14 +1155,7 @@ static inline dma_cookie_t dmaengine_submit(struct dma_async_tx_descriptor *desc
static inline bool dmaengine_check_align(enum dmaengine_alignment align,
size_t off1, size_t off2, size_t len)
{
size_t mask;
if (!align)
return true;
mask = (1 << align) - 1;
if (mask & (off1 | off2 | len))
return false;
return true;
return !(((1 << align) - 1) & (off1 | off2 | len));
}
static inline bool is_dma_copy_aligned(struct dma_device *dev, size_t off1,