[CRYPTO] api: Added asynchronous flag
This patch adds the asynchronous flag and changes all existing users to
only look up algorithms that are synchronous.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/api.c b/crypto/api.c
index 7e5522c..1e4692a 100644
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -355,7 +355,7 @@
do {
struct crypto_alg *alg;
- alg = crypto_alg_mod_lookup(name, 0, 0);
+ alg = crypto_alg_mod_lookup(name, 0, CRYPTO_ALG_ASYNC);
err = PTR_ERR(alg);
if (IS_ERR(alg))
continue;
@@ -394,7 +394,8 @@
int crypto_alg_available(const char *name, u32 flags)
{
int ret = 0;
- struct crypto_alg *alg = crypto_alg_mod_lookup(name, 0, 0);
+ struct crypto_alg *alg = crypto_alg_mod_lookup(name, 0,
+ CRYPTO_ALG_ASYNC);
if (!IS_ERR(alg)) {
crypto_mod_put(alg);
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index dbdfc7c..530dc4b 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -37,6 +37,7 @@
#define CRYPTO_ALG_LARVAL 0x00000010
#define CRYPTO_ALG_DEAD 0x00000020
#define CRYPTO_ALG_DYING 0x00000040
+#define CRYPTO_ALG_ASYNC 0x00000080
/*
* Transform masks and values (for crt_flags).