[CRYPTO] api: Show async type

This patch adds an async field to /proc/crypto for ablkcipher and aead
algorithms.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

crypto/ablkcipher.c

@@ -109,6 +109,8 @@ static void crypto_ablkcipher_show(struct seq_file *m, struct crypto_alg *alg)
 	struct ablkcipher_alg *ablkcipher = &alg->cra_ablkcipher;
 
 	seq_printf(m, "type         : ablkcipher\n");
+	seq_printf(m, "async        : %s\n", alg->cra_flags & CRYPTO_ALG_ASYNC ?
+					     "yes" : "no");
 	seq_printf(m, "blocksize    : %u\n", alg->cra_blocksize);
 	seq_printf(m, "min keysize  : %u\n", ablkcipher->min_keysize);
 	seq_printf(m, "max keysize  : %u\n", ablkcipher->max_keysize);
@@ -158,6 +160,8 @@ static void crypto_givcipher_show(struct seq_file *m, struct crypto_alg *alg)
 	struct ablkcipher_alg *ablkcipher = &alg->cra_ablkcipher;
 
 	seq_printf(m, "type         : givcipher\n");
+	seq_printf(m, "async        : %s\n", alg->cra_flags & CRYPTO_ALG_ASYNC ?
+					     "yes" : "no");
 	seq_printf(m, "blocksize    : %u\n", alg->cra_blocksize);
 	seq_printf(m, "min keysize  : %u\n", ablkcipher->min_keysize);
 	seq_printf(m, "max keysize  : %u\n", ablkcipher->max_keysize);

crypto/aead.c

@@ -115,6 +115,8 @@ static void crypto_aead_show(struct seq_file *m, struct crypto_alg *alg)
 	struct aead_alg *aead = &alg->cra_aead;
 
 	seq_printf(m, "type         : aead\n");
+	seq_printf(m, "async        : %s\n", alg->cra_flags & CRYPTO_ALG_ASYNC ?
+					     "yes" : "no");
 	seq_printf(m, "blocksize    : %u\n", alg->cra_blocksize);
 	seq_printf(m, "ivsize       : %u\n", aead->ivsize);
 	seq_printf(m, "maxauthsize  : %u\n", aead->maxauthsize);
@@ -169,6 +171,8 @@ static void crypto_nivaead_show(struct seq_file *m, struct crypto_alg *alg)
 	struct aead_alg *aead = &alg->cra_aead;
 
 	seq_printf(m, "type         : nivaead\n");
+	seq_printf(m, "async        : %s\n", alg->cra_flags & CRYPTO_ALG_ASYNC ?
+					     "yes" : "no");
 	seq_printf(m, "blocksize    : %u\n", alg->cra_blocksize);
 	seq_printf(m, "ivsize       : %u\n", aead->ivsize);
 	seq_printf(m, "maxauthsize  : %u\n", aead->maxauthsize);