crypto: rng - Add multiple algorithm registration interface
This patch adds the helpers that allow the registration and removal
of multiple RNG algorithms.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/rng.c b/crypto/rng.c
index 5e0425a..e98ce1c 100644
--- a/crypto/rng.c
+++ b/crypto/rng.c
@@ -233,5 +233,34 @@
}
EXPORT_SYMBOL_GPL(crypto_unregister_rng);
+int crypto_register_rngs(struct rng_alg *algs, int count)
+{
+ int i, ret;
+
+ for (i = 0; i < count; i++) {
+ ret = crypto_register_rng(algs + i);
+ if (ret)
+ goto err;
+ }
+
+ return 0;
+
+err:
+ for (--i; i >= 0; --i)
+ crypto_unregister_rng(algs + i);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(crypto_register_rngs);
+
+void crypto_unregister_rngs(struct rng_alg *algs, int count)
+{
+ int i;
+
+ for (i = count - 1; i >= 0; --i)
+ crypto_unregister_rng(algs + i);
+}
+EXPORT_SYMBOL_GPL(crypto_unregister_rngs);
+
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Random Number Generator");