db4268f8c5
Move the valid_dma_direction helper to a more suitable header, and clean it up to use the proper enum as well as removing pointless braces. Signed-off-by: Christoph Hellwig <hch@lst.de>
19 lines
407 B
C
19 lines
407 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_DMA_DIRECTION_H
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#define _LINUX_DMA_DIRECTION_H
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enum dma_data_direction {
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DMA_BIDIRECTIONAL = 0,
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DMA_TO_DEVICE = 1,
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DMA_FROM_DEVICE = 2,
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DMA_NONE = 3,
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};
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static inline int valid_dma_direction(enum dma_data_direction dir)
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{
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return dir == DMA_BIDIRECTIONAL || dir == DMA_TO_DEVICE ||
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dir == DMA_FROM_DEVICE;
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}
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#endif /* _LINUX_DMA_DIRECTION_H */
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