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