linux-kernel - [PATCH 1/4] dma: add dma_flags_set

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Date:	Tue, 25 Sep 2007 17:00:57 -0700
From:	akepner@....com
To:	Grant Grundler <grundler@...isc-linux.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Jes Sorensen <jes@....com>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	David Miller <davem@...emloft.net>,
	Roland Dreier <rdreier@...co.com>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH 1/4] dma: add dma_flags_set_dmaflush() to dma interface


Introduce the dma_flags_set_dmaflush() interface and give it
a default no-op implementation.

Signed-off-by: Arthur Kepner <akepner@....com>
-- 

 dma-mapping.h |    7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 2dc21cb..a0f27b9 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -99,4 +99,11 @@ static inline void dmam_release_declared_memory(struct device *dev)
 }
 #endif /* ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY */
 
+#ifndef ARCH_CAN_REORDER_DMA
+static inline int
+dma_flags_set_dmaflush(int dir) {
+	return (dir);
+}
+#endif /* ARCH_CAN_REORDER_DMA */
+
 #endif
-
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