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

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>

diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c
index 4262932d4a27947d0e50c1fbb1acbcbb451afef3..2b4f07aa89e8ba7422de65eea027e06daa5f7797 100644 (file)
--- a/drivers/crypto/mv_cesa.c
+++ b/drivers/crypto/mv_cesa.c
@@ -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);