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From 3c02b107ec11e14ef21e7a444ad83f0ef1e68f79 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sun, 13 Jun 2010 20:41:55 +0200
Subject: [PATCH 1/2] compat: backport dma_set_coherent_mask
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
include/linux/compat-2.6.34.h | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)
--- a/include/linux/compat-2.6.34.h
+++ b/include/linux/compat-2.6.34.h
@@ -216,6 +216,14 @@ do { \
#define dma_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
#endif
+static inline int dma_set_coherent_mask(struct device *dev, u64 mask)
+{
+ if (!dma_supported(dev, mask))
+ return -EIO;
+ dev->coherent_dma_mask = mask;
+ return 0;
+}
+
#endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,34)) */
#endif /* LINUX_26_34_COMPAT_H */
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