| Message ID | 1502724094-23305-19-git-send-email-gilad@benyossef.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Mon, 2017-08-14 at 18:21 +0300, Gilad Ben-Yossef wrote: > The mediatek driver starts several async crypto ops and waits for their > completions. Move it over to generic code doing the same. > > Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> > --- Acked-by: Ryder Lee <ryder.lee@mediatek.com> > drivers/crypto/mediatek/mtk-aes.c | 31 +++++-------------------------- > 1 file changed, 5 insertions(+), 26 deletions(-) > > diff --git a/drivers/crypto/mediatek/mtk-aes.c b/drivers/crypto/mediatek/mtk-aes.c > index 9e845e8..e2c7c95 100644 > --- a/drivers/crypto/mediatek/mtk-aes.c > +++ b/drivers/crypto/mediatek/mtk-aes.c > @@ -137,11 +137,6 @@ struct mtk_aes_gcm_ctx { > struct crypto_skcipher *ctr; > }; > > -struct mtk_aes_gcm_setkey_result { > - int err; > - struct completion completion; > -}; > - > struct mtk_aes_drv { > struct list_head dev_list; > /* Device list lock */ > @@ -936,17 +931,6 @@ static int mtk_aes_gcm_crypt(struct aead_request *req, u64 mode) > &req->base); > } > > -static void mtk_gcm_setkey_done(struct crypto_async_request *req, int err) > -{ > - struct mtk_aes_gcm_setkey_result *result = req->data; > - > - if (err == -EINPROGRESS) > - return; > - > - result->err = err; > - complete(&result->completion); > -} > - > /* > * Because of the hardware limitation, we need to pre-calculate key(H) > * for the GHASH operation. The result of the encryption operation > @@ -962,7 +946,7 @@ static int mtk_aes_gcm_setkey(struct crypto_aead *aead, const u8 *key, > u32 hash[4]; > u8 iv[8]; > > - struct mtk_aes_gcm_setkey_result result; > + struct crypto_wait wait; > > struct scatterlist sg[1]; > struct skcipher_request req; > @@ -1002,22 +986,17 @@ static int mtk_aes_gcm_setkey(struct crypto_aead *aead, const u8 *key, > if (!data) > return -ENOMEM; > > - init_completion(&data->result.completion); > + crypto_init_wait(&data->wait); > sg_init_one(data->sg, &data->hash, AES_BLOCK_SIZE); > skcipher_request_set_tfm(&data->req, ctr); > skcipher_request_set_callback(&data->req, CRYPTO_TFM_REQ_MAY_SLEEP | > CRYPTO_TFM_REQ_MAY_BACKLOG, > - mtk_gcm_setkey_done, &data->result); > + crypto_req_done, &data->wait); > skcipher_request_set_crypt(&data->req, data->sg, data->sg, > AES_BLOCK_SIZE, data->iv); > > - err = crypto_skcipher_encrypt(&data->req); > - if (err == -EINPROGRESS || err == -EBUSY) { > - err = wait_for_completion_interruptible( > - &data->result.completion); > - if (!err) > - err = data->result.err; > - } > + err = crypto_wait_req(crypto_skcipher_encrypt(&data->req), > + &data->wait); > if (err) > goto out; > -- To unsubscribe from this list: send the line "unsubscribe linux-security-module" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/crypto/mediatek/mtk-aes.c b/drivers/crypto/mediatek/mtk-aes.c index 9e845e8..e2c7c95 100644 --- a/drivers/crypto/mediatek/mtk-aes.c +++ b/drivers/crypto/mediatek/mtk-aes.c @@ -137,11 +137,6 @@ struct mtk_aes_gcm_ctx { struct crypto_skcipher *ctr; }; -struct mtk_aes_gcm_setkey_result { - int err; - struct completion completion; -}; - struct mtk_aes_drv { struct list_head dev_list; /* Device list lock */ @@ -936,17 +931,6 @@ static int mtk_aes_gcm_crypt(struct aead_request *req, u64 mode) &req->base); } -static void mtk_gcm_setkey_done(struct crypto_async_request *req, int err) -{ - struct mtk_aes_gcm_setkey_result *result = req->data; - - if (err == -EINPROGRESS) - return; - - result->err = err; - complete(&result->completion); -} - /* * Because of the hardware limitation, we need to pre-calculate key(H) * for the GHASH operation. The result of the encryption operation @@ -962,7 +946,7 @@ static int mtk_aes_gcm_setkey(struct crypto_aead *aead, const u8 *key, u32 hash[4]; u8 iv[8]; - struct mtk_aes_gcm_setkey_result result; + struct crypto_wait wait; struct scatterlist sg[1]; struct skcipher_request req; @@ -1002,22 +986,17 @@ static int mtk_aes_gcm_setkey(struct crypto_aead *aead, const u8 *key, if (!data) return -ENOMEM; - init_completion(&data->result.completion); + crypto_init_wait(&data->wait); sg_init_one(data->sg, &data->hash, AES_BLOCK_SIZE); skcipher_request_set_tfm(&data->req, ctr); skcipher_request_set_callback(&data->req, CRYPTO_TFM_REQ_MAY_SLEEP | CRYPTO_TFM_REQ_MAY_BACKLOG, - mtk_gcm_setkey_done, &data->result); + crypto_req_done, &data->wait); skcipher_request_set_crypt(&data->req, data->sg, data->sg, AES_BLOCK_SIZE, data->iv); - err = crypto_skcipher_encrypt(&data->req); - if (err == -EINPROGRESS || err == -EBUSY) { - err = wait_for_completion_interruptible( - &data->result.completion); - if (!err) - err = data->result.err; - } + err = crypto_wait_req(crypto_skcipher_encrypt(&data->req), + &data->wait); if (err) goto out;
The mediatek driver starts several async crypto ops and waits for their completions. Move it over to generic code doing the same. Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> --- drivers/crypto/mediatek/mtk-aes.c | 31 +++++-------------------------- 1 file changed, 5 insertions(+), 26 deletions(-)