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Merge branch 'for-4.3/sg' of git://git.kernel.dk/linux-block

Browse source 
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
This commit is contained in:
Linus Torvalds 2015-09-02 13:22:38 -07:00
commit d975f309a8
21 changed files with 234 additions and 81 deletions
Download patch file Download diff file Expand all files Collapse all files

3
drivers/crypto/bfin_crc.c
View file

@ -370,8 +370,7 @@ static int bfin_crypto_crc_handle_queue(struct bfin_crypto_crc *crc,
sg_init_table(ctx->bufsl, nsg);
sg_set_buf(ctx->bufsl, ctx->buflast, ctx->buflast_len);
if (nsg > 1)
scatterwalk_sg_chain(ctx->bufsl, nsg,
req->src);
sg_chain(ctx->bufsl, nsg, req->src);
ctx->sg = ctx->bufsl;
} else
ctx->sg = req->src;

2
drivers/crypto/omap-sham.c
View file

@ -588,7 +588,7 @@ static int omap_sham_xmit_dma(struct omap_sham_dev *dd, dma_addr_t dma_addr,
* the dmaengine may try to DMA the incorrect amount of data.
*/
sg_init_table(&ctx->sgl, 1);
ctx->sgl.page_link = ctx->sg->page_link;
sg_assign_page(&ctx->sgl, sg_page(ctx->sg));
ctx->sgl.offset = ctx->sg->offset;
sg_dma_len(&ctx->sgl) = len32;
sg_dma_address(&ctx->sgl) = sg_dma_address(ctx->sg);

2
drivers/crypto/qce/sha.c
View file

@ -296,7 +296,7 @@ static int qce_ahash_update(struct ahash_request *req)
if (rctx->buflen) {
sg_init_table(rctx->sg, 2);
sg_set_buf(rctx->sg, rctx->tmpbuf, rctx->buflen);
scatterwalk_sg_chain(rctx->sg, 2, req->src);
sg_chain(rctx->sg, 2, req->src);
req->src = rctx->sg;
}

2
drivers/crypto/sahara.c
View file

@ -999,7 +999,7 @@ static int sahara_sha_prepare_request(struct ahash_request *req)
sg_init_table(rctx->in_sg_chain, 2);
sg_set_buf(rctx->in_sg_chain, rctx->rembuf, rctx->buf_cnt);
scatterwalk_sg_chain(rctx->in_sg_chain, 2, req->src);
sg_chain(rctx->in_sg_chain, 2, req->src);
rctx->total = req->nbytes + rctx->buf_cnt;
rctx->in_sg = rctx->in_sg_chain;

2
drivers/crypto/talitos.c
View file

@ -1929,7 +1929,7 @@ static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes)
sg_init_table(req_ctx->bufsl, nsg);
sg_set_buf(req_ctx->bufsl, req_ctx->buf, req_ctx->nbuf);
if (nsg > 1)
scatterwalk_sg_chain(req_ctx->bufsl, 2, areq->src);
sg_chain(req_ctx->bufsl, 2, areq->src);
req_ctx->psrc = req_ctx->bufsl;
} else
req_ctx->psrc = areq->src;