Dan Williams cf7af4a82f async_xor: dma_map destination DMA_BIDIRECTIONAL ... commit a06d568f7c upstream. 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: Saeed Bishara <saeed@marvell.com> Acked-by: Yuri Tikhonov <yur@emcraft.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>		2009-01-14 09:44:03 -08:00
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async_memcpy.c	async_tx: remove depend_tx from async_tx_sync_epilog	2008-07-17 17:59:55 -07:00
async_memset.c	async_tx: remove depend_tx from async_tx_sync_epilog	2008-07-17 17:59:55 -07:00
async_tx.c	async_tx: fix the bug in async_tx_run_dependencies	2008-09-05 08:15:47 -07:00
async_xor.c	async_xor: dma_map destination DMA_BIDIRECTIONAL	2009-01-14 09:44:03 -08:00
Kconfig	async_tx: add the async_tx api	2007-07-13 08:06:14 -07:00
Makefile	async_tx: add the async_tx api	2007-07-13 08:06:14 -07:00