diff options
author | Ryder Lee <ryder.lee@mediatek.com> | 2019-08-28 14:37:12 +0800 |
---|---|---|
committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-09-05 14:36:54 +1000 |
commit | 4797f6cab5096aa4e97cee2d0044dcf8e6bcd7b8 (patch) | |
tree | 432ad34675bbb4ff75e6119a8d711a155153ed63 /drivers/crypto/mediatek/mtk-aes.c | |
parent | 1bbbbcfdc0f0fa7a98ba0d551fd03d2c45d5a318 (diff) |
crypto: mediatek - move mtk_aes_find_dev() to the right place
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>
Diffstat (limited to 'drivers/crypto/mediatek/mtk-aes.c')
-rw-r--r-- | drivers/crypto/mediatek/mtk-aes.c | 39 |
1 files changed, 14 insertions, 25 deletions
diff --git a/drivers/crypto/mediatek/mtk-aes.c b/drivers/crypto/mediatek/mtk-aes.c index b7477ee32ca0..0360658e43d5 100644 --- a/drivers/crypto/mediatek/mtk-aes.c +++ b/drivers/crypto/mediatek/mtk-aes.c @@ -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); |