diff options
Diffstat (limited to 'drivers/crypto/mv_cesa.c')
| -rw-r--r-- | drivers/crypto/mv_cesa.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c index 37d9f06..018a95c 100644 --- a/drivers/crypto/mv_cesa.c +++ b/drivers/crypto/mv_cesa.c @@ -242,6 +242,8 @@ static void dequeue_complete_req(void) struct ablkcipher_request *req = cpg->cur_req; void *buf; int ret; + int need_copy_len = cpg->p.crypt_len; + int sram_offset = 0; cpg->p.total_req_bytes += cpg->p.crypt_len; do { @@ -257,14 +259,16 @@ static void dequeue_complete_req(void) buf = cpg->p.dst_sg_it.addr; buf += cpg->p.dst_start; - dst_copy = min(cpg->p.crypt_len, cpg->p.sg_dst_left); - - memcpy(buf, cpg->sram + SRAM_DATA_OUT_START, dst_copy); + dst_copy = min(need_copy_len, cpg->p.sg_dst_left); + memcpy(buf, + cpg->sram + SRAM_DATA_OUT_START + sram_offset, + dst_copy); + sram_offset += dst_copy; cpg->p.sg_dst_left -= dst_copy; - cpg->p.crypt_len -= dst_copy; + need_copy_len -= dst_copy; cpg->p.dst_start += dst_copy; - } while (cpg->p.crypt_len > 0); + } while (need_copy_len > 0); BUG_ON(cpg->eng_st != ENGINE_W_DEQUEUE); if (cpg->p.total_req_bytes < req->nbytes) { |
