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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-02 13:22:38 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-02 13:22:38 -0700 |
| commit | d975f309a8b250e67b66eabeb56be6989c783629 (patch) | |
| tree | 846cae85891024f7c45416d085df90d98ec2e51b /arch | |
| parent | 52b084d31cbc8e90cb6fc1ac4061d9a24375c89d (diff) | |
| parent | f8bcbe62acd0e1ce9004b83e98a4af87ae385dcf (diff) | |
Merge branch 'for-4.3/sg' of git://git.kernel.dk/linux-block
Pull SG updates from Jens Axboe:
"This contains a set of scatter-gather related changes/fixes for 4.3:
- Add support for limited chaining of sg tables even for
architectures that do not set ARCH_HAS_SG_CHAIN. From Christoph.
- Add sg chain support to target_rd. From Christoph.
- Fixup open coded sg->page_link in crypto/omap-sham. From
Christoph.
- Fixup open coded crypto ->page_link manipulation. From Dan.
- Also from Dan, automated fixup of manual sg_unmark_end()
manipulations.
- Also from Dan, automated fixup of open coded sg_phys()
implementations.
- From Robert Jarzmik, addition of an sg table splitting helper that
drivers can use"
* 'for-4.3/sg' of git://git.kernel.dk/linux-block:
lib: scatterlist: add sg splitting function
scatterlist: use sg_phys()
crypto/omap-sham: remove an open coded access to ->page_link
scatterlist: remove open coded sg_unmark_end instances
crypto: replace scatterwalk_sg_chain with sg_chain
target/rd: always chain S/G list
scatterlist: allow limited chaining without ARCH_HAS_SG_CHAIN
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mm/dma-mapping.c | 2 | ||||
| -rw-r--r-- | arch/microblaze/kernel/dma.c | 3 |
2 files changed, 2 insertions, 3 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index cba12f34ff77..3d3d6aa60c87 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -1520,7 +1520,7 @@ static int __map_sg_chunk(struct device *dev, struct scatterlist *sg, return -ENOMEM; for (count = 0, s = sg; count < (size >> PAGE_SHIFT); s = sg_next(s)) { - phys_addr_t phys = page_to_phys(sg_page(s)); + phys_addr_t phys = sg_phys(s) & PAGE_MASK; unsigned int len = PAGE_ALIGN(s->offset + s->length); if (!is_coherent && diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c index bf4dec229437..c89da6312954 100644 --- a/arch/microblaze/kernel/dma.c +++ b/arch/microblaze/kernel/dma.c @@ -61,8 +61,7 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl, /* FIXME this part of code is untested */ for_each_sg(sgl, sg, nents, i) { sg->dma_address = sg_phys(sg); - __dma_sync(page_to_phys(sg_page(sg)) + sg->offset, - sg->length, direction); + __dma_sync(sg_phys(sg), sg->length, direction); } return nents; |