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authorHerbert Xu <herbert@gondor.apana.org.au>2023-02-06 18:22:29 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2023-02-13 18:34:48 +0800
commit5419f2b27ea594f97cbeb743789448a9872f283f (patch)
tree4510585649bf2d2a176b4feded96d4721a405aa8 /security
parent8d338c76f7cfe0eb4bc46078b1c09c8c5fc75353 (diff)
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KEYS: DH: Use crypto_wait_req
This patch replaces the custom crypto completion function with crypto_req_done. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'security')
-rw-r--r--security/keys/dh.c30
1 files changed, 5 insertions, 25 deletions
diff --git a/security/keys/dh.c b/security/keys/dh.c
index b339760a31dd..da64c358474b 100644
--- a/security/keys/dh.c
+++ b/security/keys/dh.c
@@ -64,22 +64,6 @@ static void dh_free_data(struct dh *dh)
kfree_sensitive(dh->g);
}
-struct dh_completion {
- struct completion completion;
- int err;
-};
-
-static void dh_crypto_done(struct crypto_async_request *req, int err)
-{
- struct dh_completion *compl = req->data;
-
- if (err == -EINPROGRESS)
- return;
-
- compl->err = err;
- complete(&compl->completion);
-}
-
static int kdf_alloc(struct crypto_shash **hash, char *hashname)
{
struct crypto_shash *tfm;
@@ -146,7 +130,7 @@ long __keyctl_dh_compute(struct keyctl_dh_params __user *params,
struct keyctl_dh_params pcopy;
struct dh dh_inputs;
struct scatterlist outsg;
- struct dh_completion compl;
+ DECLARE_CRYPTO_WAIT(compl);
struct crypto_kpp *tfm;
struct kpp_request *req;
uint8_t *secret;
@@ -266,22 +250,18 @@ long __keyctl_dh_compute(struct keyctl_dh_params __user *params,
kpp_request_set_input(req, NULL, 0);
kpp_request_set_output(req, &outsg, outlen);
- init_completion(&compl.completion);
kpp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG |
CRYPTO_TFM_REQ_MAY_SLEEP,
- dh_crypto_done, &compl);
+ crypto_req_done, &compl);
/*
* For DH, generate_public_key and generate_shared_secret are
* the same calculation
*/
ret = crypto_kpp_generate_public_key(req);
- if (ret == -EINPROGRESS) {
- wait_for_completion(&compl.completion);
- ret = compl.err;
- if (ret)
- goto out6;
- }
+ ret = crypto_wait_req(ret, &compl);
+ if (ret)
+ goto out6;
if (kdfcopy) {
/*