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dmaengine: fix is_slave_direction() return false when DMA_DEV_TO_DEV
author
Frank Li
<Frank.Li@nxp.com>
Tue, 23 Jan 2024 17:28:41 +0000
(12:28 -0500)
committer
Greg Kroah-Hartman
<gregkh@linuxfoundation.org>
Fri, 16 Feb 2024 18:10:42 +0000
(19:10 +0100)
[ Upstream commit
a22fe1d6dec7e98535b97249fdc95c2be79120bb
]
is_slave_direction() should return true when direction is DMA_DEV_TO_DEV.
Fixes:
49920bc66984
("dmaengine: add new enum dma_transfer_direction")
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link:
https://lore.kernel.org/r/20240123172842.3764529-1-Frank.Li@nxp.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
include/linux/dmaengine.h
patch
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diff --git
a/include/linux/dmaengine.h
b/include/linux/dmaengine.h
index
c3656e5
..
cff3dba
100644
(file)
--- a/
include/linux/dmaengine.h
+++ b/
include/linux/dmaengine.h
@@
-955,7
+955,8
@@
static inline int dmaengine_slave_config(struct dma_chan *chan,
static inline bool is_slave_direction(enum dma_transfer_direction direction)
{
- return (direction == DMA_MEM_TO_DEV) || (direction == DMA_DEV_TO_MEM);
+ return (direction == DMA_MEM_TO_DEV) || (direction == DMA_DEV_TO_MEM) ||
+ (direction == DMA_DEV_TO_DEV);
}
static inline struct dma_async_tx_descriptor *dmaengine_prep_slave_single(