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authorGilad Ben-Yossef <gilad@benyossef.com>2017-10-18 08:00:42 +0100
committerHerbert Xu <herbert@gondor.apana.org.au>2017-11-03 22:11:19 +0800
commit76c6739477fa9e16a75633d1f57c62a8a57388ad (patch)
tree6a23f5362e0bf48fb9c625f9fcc27dfb4aa1a70a /crypto
parent85a2dea4bdbfa7565818ca094d08e838cf62da77 (diff)
download96b-common-76c6739477fa9e16a75633d1f57c62a8a57388ad.tar.gz
crypto: gcm - move to generic async completion
gcm is starting an async. crypto op and waiting for it complete. Move it over to generic code doing the same. Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/gcm.c32
1 files changed, 6 insertions, 26 deletions
diff --git a/crypto/gcm.c b/crypto/gcm.c
index 80cf6cfe082b..8589681fb9f6 100644
--- a/crypto/gcm.c
+++ b/crypto/gcm.c
@@ -17,7 +17,6 @@
#include <crypto/gcm.h>
#include <crypto/hash.h>
#include "internal.h"
-#include <linux/completion.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/kernel.h>
@@ -79,11 +78,6 @@ struct crypto_gcm_req_priv_ctx {
} u;
};
-struct crypto_gcm_setkey_result {
- int err;
- struct completion completion;
-};
-
static struct {
u8 buf[16];
struct scatterlist sg;
@@ -99,17 +93,6 @@ static inline struct crypto_gcm_req_priv_ctx *crypto_gcm_reqctx(
return (void *)PTR_ALIGN((u8 *)aead_request_ctx(req), align + 1);
}
-static void crypto_gcm_setkey_done(struct crypto_async_request *req, int err)
-{
- struct crypto_gcm_setkey_result *result = req->data;
-
- if (err == -EINPROGRESS)
- return;
-
- result->err = err;
- complete(&result->completion);
-}
-
static int crypto_gcm_setkey(struct crypto_aead *aead, const u8 *key,
unsigned int keylen)
{
@@ -120,7 +103,7 @@ static int crypto_gcm_setkey(struct crypto_aead *aead, const u8 *key,
be128 hash;
u8 iv[16];
- struct crypto_gcm_setkey_result result;
+ struct crypto_wait wait;
struct scatterlist sg[1];
struct skcipher_request req;
@@ -141,21 +124,18 @@ static int crypto_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, sizeof(data->hash));
skcipher_request_set_tfm(&data->req, ctr);
skcipher_request_set_callback(&data->req, CRYPTO_TFM_REQ_MAY_SLEEP |
CRYPTO_TFM_REQ_MAY_BACKLOG,
- crypto_gcm_setkey_done,
- &data->result);
+ crypto_req_done,
+ &data->wait);
skcipher_request_set_crypt(&data->req, data->sg, data->sg,
sizeof(data->hash), data->iv);
- err = crypto_skcipher_encrypt(&data->req);
- if (err == -EINPROGRESS || err == -EBUSY) {
- wait_for_completion(&data->result.completion);
- err = data->result.err;
- }
+ err = crypto_wait_req(crypto_skcipher_encrypt(&data->req),
+ &data->wait);
if (err)
goto out;