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crypto: mediatek - move mtk_aes_find_dev() to the right place

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Move mtk_aes_find_dev() to right functions as nobody uses the
'cryp' under current flows.

We can also avoid duplicate checks here and there in this way.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Vic Wu <vic.wu@mediatek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Ryder Lee 2019-08-28 14:37:12 +08:00 committed by Herbert Xu
parent 1bbbbcfdc0
commit 4797f6cab5
1 changed files with 14 additions and 25 deletions
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39
drivers/crypto/mediatek/mtk-aes.c
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@ -651,14 +651,19 @@ static int mtk_aes_setkey(struct crypto_ablkcipher *tfm,
static int mtk_aes_crypt(struct ablkcipher_request *req, u64 mode)
{
struct mtk_aes_base_ctx *ctx;
struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
struct mtk_aes_base_ctx *ctx = crypto_ablkcipher_ctx(ablkcipher);
struct mtk_aes_reqctx *rctx;
struct mtk_cryp *cryp;
cryp = mtk_aes_find_dev(ctx);
if (!cryp)
return -ENODEV;
ctx = crypto_ablkcipher_ctx(crypto_ablkcipher_reqtfm(req));
rctx = ablkcipher_request_ctx(req);
rctx->mode = mode;
return mtk_aes_handle_queue(ctx->cryp, !(mode & AES_FLAGS_ENCRYPT),
return mtk_aes_handle_queue(cryp, !(mode & AES_FLAGS_ENCRYPT),
&req->base);
}
@ -695,13 +700,6 @@ static int mtk_aes_ctr_decrypt(struct ablkcipher_request *req)
static int mtk_aes_cra_init(struct crypto_tfm *tfm)
{
struct mtk_aes_ctx *ctx = crypto_tfm_ctx(tfm);
struct mtk_cryp *cryp = NULL;
cryp = mtk_aes_find_dev(&ctx->base);
if (!cryp) {
pr_err("can't find crypto device\n");
return -ENODEV;
}
tfm->crt_ablkcipher.reqsize = sizeof(struct mtk_aes_reqctx);
ctx->base.start = mtk_aes_start;
@ -711,13 +709,6 @@ static int mtk_aes_cra_init(struct crypto_tfm *tfm)
static int mtk_aes_ctr_cra_init(struct crypto_tfm *tfm)
{
struct mtk_aes_ctx *ctx = crypto_tfm_ctx(tfm);
struct mtk_cryp *cryp = NULL;
cryp = mtk_aes_find_dev(&ctx->base);
if (!cryp) {
pr_err("can't find crypto device\n");
return -ENODEV;
}
tfm->crt_ablkcipher.reqsize = sizeof(struct mtk_aes_reqctx);
ctx->base.start = mtk_aes_ctr_start;
@ -923,6 +914,11 @@ static int mtk_aes_gcm_crypt(struct aead_request *req, u64 mode)
struct mtk_aes_base_ctx *ctx = crypto_aead_ctx(crypto_aead_reqtfm(req));
struct mtk_aes_gcm_ctx *gctx = mtk_aes_gcm_ctx_cast(ctx);
struct mtk_aes_reqctx *rctx = aead_request_ctx(req);
struct mtk_cryp *cryp;
cryp = mtk_aes_find_dev(ctx);
if (!cryp)
return -ENODEV;
/* Empty messages are not supported yet */
if (!gctx->textlen && !req->assoclen)
@ -930,7 +926,7 @@ static int mtk_aes_gcm_crypt(struct aead_request *req, u64 mode)
rctx->mode = AES_FLAGS_GCM | mode;
return mtk_aes_handle_queue(ctx->cryp, !!(mode & AES_FLAGS_ENCRYPT),
return mtk_aes_handle_queue(cryp, !!(mode & AES_FLAGS_ENCRYPT),
&req->base);
}
@ -1046,13 +1042,6 @@ static int mtk_aes_gcm_decrypt(struct aead_request *req)
static int mtk_aes_gcm_init(struct crypto_aead *aead)
{
struct mtk_aes_gcm_ctx *ctx = crypto_aead_ctx(aead);
struct mtk_cryp *cryp = NULL;
cryp = mtk_aes_find_dev(&ctx->base);
if (!cryp) {
pr_err("can't find crypto device\n");
return -ENODEV;
}
ctx->ctr = crypto_alloc_skcipher("ctr(aes)", 0,
CRYPTO_ALG_ASYNC);