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powerpc: use <asm-generic/dma-mapping.h> 

The powerpc version of dma-mapping.h only contains a version of
get_arch_dma_ops that always return NULL.  Replace it with the
asm-generic version that does the same.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20190807150752.17894-1-hch@lst.de
This commit is contained in:
Christoph Hellwig 2019-08-07 18:07:52 +03:00 committed by Michael Ellerman
parent 1ca3dec2b2
commit f5817191b0
2 changed files with 1 additions and 18 deletions
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1
arch/powerpc/include/asm/Kbuild
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@ -4,6 +4,7 @@ generated-y += syscall_table_64.h
generated-y += syscall_table_c32.h
generated-y += syscall_table_spu.h
generic-y += div64.h
generic-y += dma-mapping.h
generic-y += export.h
generic-y += irq_regs.h
generic-y += local64.h

18
arch/powerpc/include/asm/dma-mapping.h
View File

@ -1,18 +0,0 @@
/* 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 */