forked from mirrors/linux
4a605e2d1a
There is no need to provide anything but get_arch_dma_ops to <linux/dma-mapping.h>. More the remaining declarations to <asm/iommu.h> and drop all the includes. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Christian Zigotzky <chzigotzky@xenosoft.de> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
18 lines
520 B
C
18 lines
520 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright (C) 2004 IBM
|
|
*/
|
|
#ifndef _ASM_DMA_MAPPING_H
|
|
#define _ASM_DMA_MAPPING_H
|
|
|
|
static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
|
|
{
|
|
/* We don't handle the NULL dev case for ISA for now. We could
|
|
* do it via an out of line call but it is not needed for now. The
|
|
* only ISA DMA device we support is the floppy and we have a hack
|
|
* in the floppy driver directly to get a device for us.
|
|
*/
|
|
return NULL;
|
|
}
|
|
|
|
#endif /* _ASM_DMA_MAPPING_H */
|