kpriv/linux-hardened
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

crypto: mv_cesa - Execute some code via function pointers rathr than direct calls

Browse source 
Execute some code via function pointers rathr than direct calls
(to allow customization in the hashing request)

Signed-off-by: Uri Simchoni <uri@jdland.co.il>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Uri Simchoni 2010-04-08 19:30:19 +03:00 committed by Herbert Xu
parent 7a5f691ef0
commit a58094ac5f
1 changed files with 9 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
drivers/crypto/mv_cesa.c
View file

@ -51,6 +51,8 @@ enum engine_status {
struct req_progress {
struct sg_mapping_iter src_sg_it;
struct sg_mapping_iter dst_sg_it;
void (*complete) (void);
void (*process) (int is_first);
/* src mostly */
int sg_src_left;
@ -251,6 +253,9 @@ static void mv_crypto_algo_completion(void)
struct ablkcipher_request *req = ablkcipher_request_cast(cpg->cur_req);
struct mv_req_ctx *req_ctx = ablkcipher_request_ctx(req);
sg_miter_stop(&cpg->p.src_sg_it);
sg_miter_stop(&cpg->p.dst_sg_it);
if (req_ctx->op != COP_AES_CBC)
return ;
@ -294,11 +299,9 @@ static void dequeue_complete_req(void)
if (cpg->p.hw_processed_bytes < cpg->p.hw_nbytes) {
/* process next scatter list entry */
cpg->eng_st = ENGINE_BUSY;
mv_process_current_q(0);
cpg->p.process(0);
} else {
sg_miter_stop(&cpg->p.src_sg_it);
sg_miter_stop(&cpg->p.dst_sg_it);
mv_crypto_algo_completion();
cpg->p.complete();
cpg->eng_st = ENGINE_IDLE;
local_bh_disable();
req->complete(req, 0);
@ -331,6 +334,8 @@ static void mv_enqueue_new_req(struct ablkcipher_request *req)
cpg->cur_req = &req->base;
memset(p, 0, sizeof(struct req_progress));
p->hw_nbytes = req->nbytes;
p->complete = mv_crypto_algo_completion;
p->process = mv_process_current_q;
num_sgs = count_sgs(req->src, req->nbytes);
sg_miter_start(&p->src_sg_it, req->src, num_sgs, SG_MITER_FROM_SG);