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staging: ccree: simplify expression with local var

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Simplify expression by using a local variable for better code
readability.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Gilad Ben-Yossef
2017-12-12 14:52:53 +00:00
committed by Greg Kroah-Hartman
parent 04294a1c4c
commit eee23916e3
1 changed files with 10 additions and 12 deletions
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22
drivers/staging/ccree/ssi_buffer_mgr.c
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@@ -917,6 +917,7 @@ static int cc_prepare_aead_data_mlli(struct ssi_drvdata *drvdata,
unsigned int authsize = areq_ctx->req_authsize;
int rc = 0, icv_nents;
struct device *dev = drvdata_to_dev(drvdata);
struct scatterlist *sg;
if (req->src == req->dst) {
/*INPLACE*/
@@ -955,12 +956,11 @@ static int cc_prepare_aead_data_mlli(struct ssi_drvdata *drvdata,
areq_ctx->mac_buf_dma_addr;
}
} else { /* Contig. ICV */
sg = &areq_ctx->src_sgl[areq_ctx->src.nents - 1];
/*Should hanlde if the sg is not contig.*/
areq_ctx->icv_dma_addr = sg_dma_address(
&areq_ctx->src_sgl[areq_ctx->src.nents - 1]) +
areq_ctx->icv_dma_addr = sg_dma_address(sg) +
(*src_last_bytes - authsize);
areq_ctx->icv_virt_addr = sg_virt(
&areq_ctx->src_sgl[areq_ctx->src.nents - 1]) +
areq_ctx->icv_virt_addr = sg_virt(sg) +
(*src_last_bytes - authsize);
}
@@ -993,12 +993,11 @@ static int cc_prepare_aead_data_mlli(struct ssi_drvdata *drvdata,
areq_ctx->icv_virt_addr = areq_ctx->backup_mac;
} else { /* Contig. ICV */
sg = &areq_ctx->src_sgl[areq_ctx->src.nents - 1];
/*Should hanlde if the sg is not contig.*/
areq_ctx->icv_dma_addr = sg_dma_address(
&areq_ctx->src_sgl[areq_ctx->src.nents - 1]) +
areq_ctx->icv_dma_addr = sg_dma_address(sg) +
(*src_last_bytes - authsize);
areq_ctx->icv_virt_addr = sg_virt(
&areq_ctx->src_sgl[areq_ctx->src.nents - 1]) +
areq_ctx->icv_virt_addr = sg_virt(sg) +
(*src_last_bytes - authsize);
}
@@ -1023,12 +1022,11 @@ static int cc_prepare_aead_data_mlli(struct ssi_drvdata *drvdata,
}
if (!areq_ctx->is_icv_fragmented) {
sg = &areq_ctx->dst_sgl[areq_ctx->dst.nents - 1];
/* Contig. ICV */
areq_ctx->icv_dma_addr = sg_dma_address(
&areq_ctx->dst_sgl[areq_ctx->dst.nents - 1]) +
areq_ctx->icv_dma_addr = sg_dma_address(sg) +
(*dst_last_bytes - authsize);
areq_ctx->icv_virt_addr = sg_virt(
&areq_ctx->dst_sgl[areq_ctx->dst.nents - 1]) +
areq_ctx->icv_virt_addr = sg_virt(sg) +
(*dst_last_bytes - authsize);
} else {
areq_ctx->icv_dma_addr = areq_ctx->mac_buf_dma_addr;