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authorJiri Kosina <jkosina@suse.cz>2010-06-16 18:08:13 +0200
committerJiri Kosina <jkosina@suse.cz>2010-06-16 18:08:13 +0200
commitf1bbbb6912662b9f6070c5bfc4ca9eb1f06a9d5b (patch)
treec2c130a74be25b0b2dff992e1a195e2728bdaadd /include/asm-generic/scatterlist.h
parentfix typos concerning "instead" (diff)
parentLinux 2.6.35-rc3 (diff)
downloadlinux-f1bbbb6912662b9f6070c5bfc4ca9eb1f06a9d5b.tar.xz
linux-f1bbbb6912662b9f6070c5bfc4ca9eb1f06a9d5b.zip
Merge branch 'master' into for-next
Diffstat (limited to 'include/asm-generic/scatterlist.h')
-rw-r--r--include/asm-generic/scatterlist.h17
1 files changed, 4 insertions, 13 deletions
diff --git a/include/asm-generic/scatterlist.h b/include/asm-generic/scatterlist.h
index 8b9454496a7c..5de07355fad4 100644
--- a/include/asm-generic/scatterlist.h
+++ b/include/asm-generic/scatterlist.h
@@ -11,7 +11,9 @@ struct scatterlist {
unsigned int offset;
unsigned int length;
dma_addr_t dma_address;
+#ifdef CONFIG_NEED_SG_DMA_LENGTH
unsigned int dma_length;
+#endif
};
/*
@@ -22,22 +24,11 @@ struct scatterlist {
* is 0.
*/
#define sg_dma_address(sg) ((sg)->dma_address)
-#ifndef sg_dma_len
-/*
- * Normally, you have an iommu on 64 bit machines, but not on 32 bit
- * machines. Architectures that are differnt should override this.
- */
-#if __BITS_PER_LONG == 64
+
+#ifdef CONFIG_NEED_SG_DMA_LENGTH
#define sg_dma_len(sg) ((sg)->dma_length)
#else
#define sg_dma_len(sg) ((sg)->length)
-#endif /* 64 bit */
-#endif /* sg_dma_len */
-
-#ifndef ISA_DMA_THRESHOLD
-#define ISA_DMA_THRESHOLD (~0UL)
#endif
-#define ARCH_HAS_SG_CHAIN
-
#endif /* __ASM_GENERIC_SCATTERLIST_H */