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authorGilad Ben-Yossef <gilad@benyossef.com>2017-10-18 08:00:51 +0100
committerHerbert Xu <herbert@gondor.apana.org.au>2017-11-03 22:11:23 +0800
commit591b95af3da027412be17ecbcb4dbd33990b557c (patch)
treecc04ee2be733a1825fd1053a0f391d8e0105bd80 /drivers/crypto
parentc70e5f9403103c0a754c4c726e00ddbd7c2c3bf4 (diff)
downloadlinux-591b95af3da027412be17ecbcb4dbd33990b557c.tar.bz2
crypto: mediatek - move to generic async completion
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> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
-rw-r--r--drivers/crypto/mediatek/mtk-aes.c31
1 files changed, 5 insertions, 26 deletions
diff --git a/drivers/crypto/mediatek/mtk-aes.c b/drivers/crypto/mediatek/mtk-aes.c
index 32aa587783c3..c2058cf59f57 100644
--- a/drivers/crypto/mediatek/mtk-aes.c
+++ b/drivers/crypto/mediatek/mtk-aes.c
@@ -138,11 +138,6 @@ 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 */
@@ -942,17 +937,6 @@ 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
@@ -968,7 +952,7 @@ 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;
@@ -1008,22 +992,17 @@ 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;