* [PATCH 3/4] dmaengine: mediatek: use GFP_NOWAIT instead of GFP_ATOMIC in prep_dma
@ 2021-05-03 15:26 Guillaume Ranquet
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From: Guillaume Ranquet @ 2021-05-03 15:26 UTC (permalink / raw)
Cc: Sean Wang, Vinod Koul, Dan Williams, Matthias Brugger, dmaengine,
linux-arm-kernel, linux-mediatek, linux-kernel
As recommended by the doc in:
Documentation/drivers-api/dmaengine/provider.rst
Use GFP_NOWAIT to not deplete the emergency pool.
Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
diff --git a/drivers/dma/mediatek/mtk-uart-apdma.c
b/drivers/dma/mediatek/mtk-uart-apdma.c
index 249cabddb7ee..4711bec04b98 100644
--- a/drivers/dma/mediatek/mtk-uart-apdma.c
+++ b/drivers/dma/mediatek/mtk-uart-apdma.c
@@ -349,7 +349,7 @@ static struct dma_async_tx_descriptor
*mtk_uart_apdma_prep_slave_sg
return NULL;
/* Now allocate and setup the descriptor */
- d = kzalloc(sizeof(*d), GFP_ATOMIC);
+ d = kzalloc(sizeof(*d), GFP_NOWAIT);
if (!d)
return NULL;
--
2.26.3
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