From mboxrd@z Thu Jan 1 00:00:00 1970 From: nicolas.ferre@atmel.com (Nicolas Ferre) Date: Wed, 12 Jan 2011 15:39:07 +0100 Subject: [PATCH 3/6] dmaengine: at_hdmac: no need set ACK in new descriptor In-Reply-To: <1292435416-16927-1-git-send-email-nicolas.ferre@atmel.com> References: <1292435416-16927-1-git-send-email-nicolas.ferre@atmel.com> Message-ID: <1294843150-6962-2-git-send-email-nicolas.ferre@atmel.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Following descriptor flow in at_hdmac driver, descriptor comming from atc_desc_get() as already DMA_CTRL_ACK flag set. No need to set it again. Signed-off-by: Nicolas Ferre --- drivers/dma/at_hdmac.c | 1 - 1 files changed, 0 insertions(+), 1 deletions(-) diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index a4dd4bc..4f83431 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -583,7 +583,6 @@ atc_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src, desc->lli.ctrlb = ctrlb; desc->txd.cookie = 0; - async_tx_ack(&desc->txd); if (!first) { first = desc; -- 1.7.3