crypto: sun4i-ss - Always use sun4i_tfm_ctx for storing pointer to dev ss

The dev *ss is stored both in sun4i_tfm_ctx and sun4i_req_ctx.
Since this pointer will never be changed during tfm life, it is better
to remove it from sun4i_req_ctx.

Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/sunxi-ss/sun4i-ss-hash.c b/drivers/crypto/sunxi-ss/sun4i-ss-hash.c
index 60031e0..2ee3b59 100644 (file)
--- a/drivers/crypto/sunxi-ss/sun4i-ss-hash.c
+++ b/drivers/crypto/sunxi-ss/sun4i-ss-hash.c
@@ -20,6 +20,15 @@
 
 int sun4i_hash_crainit(struct crypto_tfm *tfm)
 {
+       struct sun4i_tfm_ctx *op = crypto_tfm_ctx(tfm);
+       struct ahash_alg *alg = __crypto_ahash_alg(tfm->__crt_alg);
+       struct sun4i_ss_alg_template *algt;
+
+       memset(op, 0, sizeof(struct sun4i_tfm_ctx));
+
+       algt = container_of(alg, struct sun4i_ss_alg_template, alg.hash);
+       op->ss = algt->ss;
+
        crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
                                 sizeof(struct sun4i_req_ctx));
        return 0;
@@ -36,7 +45,6 @@ int sun4i_hash_init(struct ahash_request *areq)
        memset(op, 0, sizeof(struct sun4i_req_ctx));
 
        algt = container_of(alg, struct sun4i_ss_alg_template, alg.hash);
-       op->ss = algt->ss;
        op->mode = algt->mode;
 
        return 0;
@@ -168,8 +176,9 @@ int sun4i_hash(struct ahash_request *areq)
         */
 
        struct sun4i_req_ctx *op = ahash_request_ctx(areq);
-       struct sun4i_ss_ctx *ss = op->ss;
        struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
+       struct sun4i_tfm_ctx *tfmctx = crypto_ahash_ctx(tfm);
+       struct sun4i_ss_ctx *ss = tfmctx->ss;
        unsigned int in_i = 0; /* advancement in the current SG */
        unsigned int end;
        /*

diff --git a/drivers/crypto/sunxi-ss/sun4i-ss.h b/drivers/crypto/sunxi-ss/sun4i-ss.h
index ece5a1c..f04c0f8 100644 (file)
--- a/drivers/crypto/sunxi-ss/sun4i-ss.h
+++ b/drivers/crypto/sunxi-ss/sun4i-ss.h
@@ -163,7 +163,6 @@ struct sun4i_req_ctx {
        u32 hash[5]; /* for storing SS_IVx register */
        char buf[64];
        unsigned int len;
-       struct sun4i_ss_ctx *ss;
        int flags;
 };