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- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef _LINUX_DMA_DIRECTION_H
- #define _LINUX_DMA_DIRECTION_H
- enum dma_data_direction {
- DMA_BIDIRECTIONAL = 0,
- DMA_TO_DEVICE = 1,
- DMA_FROM_DEVICE = 2,
- DMA_NONE = 3,
- };
- static inline int valid_dma_direction(enum dma_data_direction dir)
- {
- return dir == DMA_BIDIRECTIONAL || dir == DMA_TO_DEVICE ||
- dir == DMA_FROM_DEVICE;
- }
- #endif /* _LINUX_DMA_DIRECTION_H */
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