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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-23 08:53:41 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-23 08:53:41 -0700
commitba1c28a94322865457ad59f80474615156065123 (patch)
treea1de9e1b7aba07583e49ff1c3f1c495cf148475a /arch/sparc64/kernel
parent101e4d91f5e8c78d64970c03323d942d6706320f (diff)
parentcb92ae81509eb5ddaea53884b60437502c837405 (diff)
Merge branch 'sg' of git://git.kernel.dk/linux-2.6-block
* 'sg' of git://git.kernel.dk/linux-2.6-block: sparc64: zero out dma_length fvr32: fixup dma-mapping for new sg layout sh/sh64: fixup dma-mapping for new sg layout Fix sctp compile m68knommu: remove sg_address() frv: update comment in scatterlist to reflect new setup blackfin: remove sg_address() arm: sg fallout mips: sg_page() fallout alpha: sg_virt() fallout intel-iommu: fix sg_page() parisc: fix sg_page() fallout ide: build fix net: fix xfrm build - missing scatterlist.h include [BLOCK] blk_rq_map_sg: force clear termination bit [BLOCK] Don't clear sg_dma_len/addr() in blk_rq_map_sg() s390 zfcp: sg fixups powerpc: Fix fallout from sg_page() changes IB/ehca: Fix sg_page() fallout arm: build fix
Diffstat (limited to 'arch/sparc64/kernel')
-rw-r--r--arch/sparc64/kernel/iommu_common.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/sparc64/kernel/iommu_common.c b/arch/sparc64/kernel/iommu_common.c
index 78e8277df65..b70324e0d83 100644
--- a/arch/sparc64/kernel/iommu_common.c
+++ b/arch/sparc64/kernel/iommu_common.c
@@ -233,6 +233,11 @@ unsigned long prepare_sg(struct scatterlist *sg, int nents)
dma_sg->dma_address = dent_addr;
dma_sg->dma_length = dent_len;
+ if (dma_sg != sg) {
+ dma_sg = next_sg(dma_sg);
+ dma_sg->dma_length = 0;
+ }
+
return ((unsigned long) dent_addr +
(unsigned long) dent_len +
(IO_PAGE_SIZE - 1UL)) >> IO_PAGE_SHIFT;