From a22fe1d6dec7e98535b97249fdc95c2be79120bb Mon Sep 17 00:00:00 2001
From: Frank Li <Frank.Li@nxp.com>
Date: Tue, 23 Jan 2024 12:28:41 -0500
Subject: [PATCH] dmaengine: fix is_slave_direction() return false when
DMA_DEV_TO_DEV
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>
---
include/linux/dmaengine.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 3df70d6131c8f..752dbde4cec1f 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -953,7 +953,8 @@ 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(
--
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