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Message-ID: <20071003024457.GF26752@sgi.com>
Date: Tue, 2 Oct 2007 19:44:57 -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>,
RolandDreier <rdreier@...co.com>,
James Bottomley <James.Bottomley@...eleye.com>,
David Miller <davem@...emloft.net>
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH 1/5] dma: add dma_flags_set_attr() to dma interface
Introduce the dma_flags_set_attr() interface and give it a default
no-op implementation.
Signed-off-by: Arthur Kepner <akepner@....com>
---
dma-mapping.h | 8 ++++++++
1 files changed, 8 insertions(+)
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 2dc21cb..4990aaf 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -99,4 +99,12 @@ static inline void dmam_release_declared_memory(struct device *dev)
}
#endif /* ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY */
+#define DMA_BARRIER_ATTR 0x1
+#ifndef ARCH_USES_DMA_ATTRS
+static inline int dma_flags_set_attr(u32 attr, enum dma_data_direction dir)
+{
+ return dir;
+}
+#endif /* ARCH_USES_DMA_ATTRS */
+
#endif
-
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