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356da6d0c dma-mapping: bypass indirect calls for dma-direct ... Browse Code »

Avoid expensive indirect calls in the fast path DMA mapping
operations by directly calling the dma_direct_* ops if we are using
the directly mapped DMA operations.

Signed-off-by: Christoph Hellwig
Acked-by: Jesper Dangaard Brouer
Tested-by: Jesper Dangaard Brouer
Tested-by: Tony Luck

Christoph Hellwig
2018-12-14 04:06:18 +0800

dma-mapping.h 248 Bytes

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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_GENERIC_DMA_MAPPING_H
#define _ASM_GENERIC_DMA_MAPPING_H

static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
	return NULL;
}

#endif /* _ASM_GENERIC_DMA_MAPPING_H */