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[1/2] compat: backport dma_set_coherent_mask

Message ID 1276459009-17168-1-git-send-email-hauke@hauke-m.de (mailing list archive)
State Not Applicable, archived
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Commit Message

Hauke Mehrtens June 13, 2010, 7:56 p.m. UTC 
None
diff mbox

Patch

diff --git a/include/linux/compat-2.6.34.h b/include/linux/compat-2.6.34.h
index b1c15a7..336c61b 100644
--- 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 */