From: Guennadi Liakhovetski <lg@denx.de>
Date: Mon, 19 Jan 2009 22:36:21 +0000 (-0700)
Subject: dmaengine: add async_tx_clear_ack() macro
X-Git-Tag: v2.6.29-rc3~34^2~2
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=ef560682a97491f62ef538931a4861b57d66c52c;p=linux-2.6-omap-h63xx.git

dmaengine: add async_tx_clear_ack() macro

To complete the DMA_CTRL_ACK handling API add a async_tx_clear_ack() macro.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---

diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index c4a560e72ab..34f124d7fb9 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -287,6 +287,11 @@ static inline void async_tx_ack(struct dma_async_tx_descriptor *tx)
 	tx->flags |= DMA_CTRL_ACK;
 }
 
+static inline void async_tx_clear_ack(struct dma_async_tx_descriptor *tx)
+{
+	tx->flags &= ~DMA_CTRL_ACK;
+}
+
 static inline bool async_tx_test_ack(struct dma_async_tx_descriptor *tx)
 {
 	return (tx->flags & DMA_CTRL_ACK) == DMA_CTRL_ACK;