redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

dmaengine: imx-sdma: Remove call to memset after dma_alloc_coherent 

In commit 518a2f1925
("dma-mapping: zero memory returned from dma_alloc_*"),
dma_alloc_coherent has already zeroed the memory.
So memset is not needed.

Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com>
Link: https://lore.kernel.org/r/20190715031716.6328-1-huangfq.daxian@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
alistair/sunxi64-5.4-dsi
Fuqian Huang 2019-07-15 11:17:16 +08:00 committed by Vinod Koul
parent e17be6e1b7
commit 9603a7ab60
1 changed files with 0 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/dma/imx-sdma.c
View File

@ -1886,10 +1886,6 @@ static int sdma_init(struct sdma_engine *sdma)
sdma->context_phys = ccb_phys +
MAX_DMA_CHANNELS * sizeof (struct sdma_channel_control);
/* Zero-out the CCB structures array just allocated */
memset(sdma->channel_control, 0,
MAX_DMA_CHANNELS * sizeof (struct sdma_channel_control));
/* disable all channels */
for (i = 0; i < sdma->drvdata->num_events; i++)
writel_relaxed(0, sdma->regs + chnenbl_ofs(sdma, i));