[PATCH v3 26/28] crypto: qce: move to generic async completion
From: gilad@benyossef.com (Gilad Ben-Yossef)
Date: 2017-07-02 14:48:31
Also in:
dm-devel, keyrings, linux-arm-kernel, linux-crypto, linux-fscrypt, lkml
Subsystem:
crypto api, qualcomm crypto drivers, the rest · Maintainers:
Herbert Xu, "David S. Miller", Thara Gopinath, Linus Torvalds
The qce 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/qce/sha.c | 30 ++++-------------------------- 1 file changed, 4 insertions(+), 26 deletions(-)
diff --git a/drivers/crypto/qce/sha.c b/drivers/crypto/qce/sha.c
index a21d2a1c..53227d7 100644
--- a/drivers/crypto/qce/sha.c
+++ b/drivers/crypto/qce/sha.c@@ -349,28 +349,12 @@ static int qce_ahash_digest(struct ahash_request *req) return qce->async_req_enqueue(tmpl->qce, &req->base); } -struct qce_ahash_result { - struct completion completion; - int error; -}; - -static void qce_digest_complete(struct crypto_async_request *req, int error) -{ - struct qce_ahash_result *result = req->data; - - if (error == -EINPROGRESS) - return; - - result->error = error; - complete(&result->completion); -} - static int qce_ahash_hmac_setkey(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen) { unsigned int digestsize = crypto_ahash_digestsize(tfm); struct qce_sha_ctx *ctx = crypto_tfm_ctx(&tfm->base); - struct qce_ahash_result result; + struct crypto_wait wait; struct ahash_request *req; struct scatterlist sg; unsigned int blocksize;
@@ -405,9 +389,9 @@ static int qce_ahash_hmac_setkey(struct crypto_ahash *tfm, const u8 *key, goto err_free_ahash; } - init_completion(&result.completion); + crypto_init_wait(&wait); ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG, - qce_digest_complete, &result); + crypto_req_done, &wait); crypto_ahash_clear_flags(ahash_tfm, ~0); buf = kzalloc(keylen + QCE_MAX_ALIGN_SIZE, GFP_KERNEL);
@@ -420,13 +404,7 @@ static int qce_ahash_hmac_setkey(struct crypto_ahash *tfm, const u8 *key, sg_init_one(&sg, buf, keylen); ahash_request_set_crypt(req, &sg, ctx->authkey, keylen); - ret = crypto_ahash_digest(req); - if (ret == -EINPROGRESS || ret == -EIOCBQUEUED) { - ret = wait_for_completion_interruptible(&result.completion); - if (!ret) - ret = result.error; - } - + ret = crypto_wait_req(crypto_ahash_digest(req), &wait); if (ret) crypto_ahash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
--
2.1.4
--
To unsubscribe from this list: send the line "unsubscribe linux-security-module" in
the body of a message to majordomo at vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html