Execute some code via function pointers rathr than direct calls
(to allow customization in the hashing request)
Signed-off-by: Uri Simchoni <[email protected]>
---
diff -upr linux-2.6.32.8_p6/drivers/crypto/mv_cesa.c
linux-2.6.32.8_p7/drivers/crypto/mv_cesa.c
--- linux-2.6.32.8_p6/drivers/crypto/mv_cesa.c 2010-03-16
11:51:56.372211208 +0200
+++ linux-2.6.32.8_p7/drivers/crypto/mv_cesa.c 2010-03-16
12:07:31.147897717 +0200
@@ -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(vo
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 ab
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);