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crypto: omap-sham - rename sgl to sgl_tmp for deprecation 

The current usage of sgl will be deprecated, and will be replaced by an
array required by the sg based driver implementation. Rename the existing
variable as sgl_tmp so that it can be removed from the driver easily later.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Tero Kristo 2016-09-19 18:22:14 +03:00 committed by Herbert Xu
parent 744e686a44
commit 8addf571ae
1 changed files with 10 additions and 9 deletions
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19
drivers/crypto/omap-sham.c
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@ -151,7 +151,7 @@ struct omap_sham_reqctx {
/* walk state */
struct scatterlist *sg;
struct scatterlist sgl;
struct scatterlist sgl_tmp;
unsigned int offset; /* offset in current sg */
unsigned int total; /* total request */
@ -583,18 +583,19 @@ static int omap_sham_xmit_dma(struct omap_sham_dev *dd, dma_addr_t dma_addr,
if (is_sg) {
/*
* The SG entry passed in may not have the 'length' member
* set correctly so use a local SG entry (sgl) with the
* set correctly so use a local SG entry (sgl_tmp) with the
* proper value for 'length' instead. If this is not done,
* the dmaengine may try to DMA the incorrect amount of data.
*/
sg_init_table(&ctx->sgl, 1);
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);
sg_init_table(&ctx->sgl_tmp, 1);
sg_assign_page(&ctx->sgl_tmp, sg_page(ctx->sg));
ctx->sgl_tmp.offset = ctx->sg->offset;
sg_dma_len(&ctx->sgl_tmp) = len32;
sg_dma_address(&ctx->sgl_tmp) = sg_dma_address(ctx->sg);
tx = dmaengine_prep_slave_sg(dd->dma_lch, &ctx->sgl, 1,
DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
tx = dmaengine_prep_slave_sg(dd->dma_lch, &ctx->sgl_tmp, 1,
DMA_MEM_TO_DEV,
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
} else {
tx = dmaengine_prep_slave_single(dd->dma_lch, dma_addr, len32,
DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT | DMA_CTRL_ACK);