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Dan Williams a06d568f7c async_xor: dma_map destination DMA_BIDIRECTIONAL ... Mapping the destination multiple times is a misuse of the dma-api. Since the destination may be reused as a source, ensure that it is only mapped once and that it is mapped bidirectionally. This appears to add ugliness on the unmap side in that it always reads back the destination address from the descriptor, but gcc can determine that dma_unmap is a nop and not emit the code that calculates its arguments. Cc: <stable@kernel.org> Cc: Saeed Bishara <saeed@marvell.com> Acked-by: Yuri Tikhonov <yur@emcraft.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>		16 years ago
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Kconfig	…
Makefile	…
dmaengine.c	dmaengine: protect 'id' from concurrent registrations	16 years ago
dmatest.c	…
dw_dmac.c	…
dw_dmac_regs.h	…
fsldma.c	…
fsldma.h	…
ioat.c	…
ioat_dca.c	…
ioat_dma.c	ioat: wait for self-test completion	16 years ago
ioatdma.h	…
ioatdma_hw.h	…
ioatdma_registers.h	…
iop-adma.c	async_xor: dma_map destination DMA_BIDIRECTIONAL	16 years ago
iovlock.c	…
mv_xor.c	async_xor: dma_map destination DMA_BIDIRECTIONAL	16 years ago
mv_xor.h	…