From mboxrd@z Thu Jan 1 00:00:00 1970 From: hao5781286@gmail.com (Axl-zhang) Date: Wed, 2 Nov 2016 13:31:12 +0800 Subject: [PATCH v1] ARM:dmaengine:sun6i:fix the uninitialized value for v_lli Message-ID: <20161102053112.GA8109@arx-xi> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org dma_pool_alloc does not initialize the value of the newly allocated block for the v_lli, and the uninitilize value make the tests failed which is on pine64 with dmatest. we can fix it just change the "|=" to "=" for the v_lli->cfg. Signed-off-by: Hao Zhang --- drivers/dma/sun6i-dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/sun6i-dma.c b/drivers/dma/sun6i-dma.c index 3835fcd..52b48eb 100644 --- a/drivers/dma/sun6i-dma.c +++ b/drivers/dma/sun6i-dma.c @@ -578,7 +578,7 @@ static struct dma_async_tx_descriptor *sun6i_dma_prep_dma_memcpy( burst = convert_burst(8); width = convert_buswidth(DMA_SLAVE_BUSWIDTH_4_BYTES); - v_lli->cfg |= DMA_CHAN_CFG_SRC_DRQ(DRQ_SDRAM) | + v_lli->cfg = DMA_CHAN_CFG_SRC_DRQ(DRQ_SDRAM) | DMA_CHAN_CFG_DST_DRQ(DRQ_SDRAM) | DMA_CHAN_CFG_DST_LINEAR_MODE | DMA_CHAN_CFG_SRC_LINEAR_MODE | -- 2.7.4