Le 15/10/2017 à 11:20, Gilad Ben-Yossef a écrit :
The talitos 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@xxxxxxxxxxxxx>
Tested-by: Christophe Leroy <christophe.leroy@xxxxxx>
--- drivers/crypto/talitos.c | 38 +++++--------------------------------- 1 file changed, 5 insertions(+), 33 deletions(-) diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index 5bd8191..9c80e0c 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -2160,22 +2160,6 @@ static int ahash_import(struct ahash_request *areq, const void *in) return 0; }-struct keyhash_result {- struct completion completion; - int err; -}; - -static void keyhash_complete(struct crypto_async_request *req, int err) -{ - struct keyhash_result *res = req->data; - - if (err == -EINPROGRESS) - return; - - res->err = err; - complete(&res->completion); -} - static int keyhash(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen, u8 *hash) { @@ -2183,10 +2167,10 @@ static int keyhash(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen,struct scatterlist sg[1];struct ahash_request *req; - struct keyhash_result hresult; + struct crypto_wait wait; int ret;- init_completion(&hresult.completion);+ crypto_init_wait(&wait);req = ahash_request_alloc(tfm, GFP_KERNEL);if (!req) @@ -2195,25 +2179,13 @@ static int keyhash(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen, /* Keep tfm keylen == 0 during hash of the long key */ ctx->keylen = 0; ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - keyhash_complete, &hresult); + crypto_req_done, &wait);sg_init_one(&sg[0], key, keylen); ahash_request_set_crypt(req, sg, hash, keylen);- ret = crypto_ahash_digest(req); - switch (ret) { - case 0: - break; - case -EINPROGRESS: - case -EBUSY: - ret = wait_for_completion_interruptible( - &hresult.completion); - if (!ret) - ret = hresult.err; - break; - default: - break; - } + ret = crypto_wait_req(crypto_ahash_digest(req), &wait); + ahash_request_free(req);return ret;
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