From 9603a7ab60989f586786f082a8b1e3bf6fbcc749 Mon Sep 17 00:00:00 2001 From: Fuqian Huang Date: Mon, 15 Jul 2019 11:17:16 +0800 Subject: [PATCH] dmaengine: imx-sdma: Remove call to memset after dma_alloc_coherent In commit 518a2f1925c3 ("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 Link: https://lore.kernel.org/r/20190715031716.6328-1-huangfq.daxian@gmail.com Signed-off-by: Vinod Koul --- drivers/dma/imx-sdma.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index a01f4b5d793c..9ba74ab7e912 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -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)); -- 2.45.2