diff --git a/include/crypto/internal/rng.h b/include/crypto/internal/rng.h
index 76f3c9519ba5723034bb3a34ca18eb666130c8b3..93d41bcc444e3979ebc6d4494b29eb315beaa5fb 100644
--- a/include/crypto/internal/rng.h
+++ b/include/crypto/internal/rng.h
@@ -26,4 +26,10 @@ static inline void *crypto_rng_ctx(struct crypto_rng *tfm)
 	return crypto_tfm_ctx(&tfm->base);
 }
 
+static inline void crypto_rng_set_entropy(struct crypto_rng *tfm,
+					  const u8 *data, unsigned int len)
+{
+	crypto_rng_alg(tfm)->set_ent(tfm, data, len);
+}
+
 #endif
diff --git a/include/crypto/rng.h b/include/crypto/rng.h
index 133f0441ad3e0d8c5315061527992f29f4b4b9bb..cc22e52a129aaf2edc9ff9ce6ec79f9a0d6421c3 100644
--- a/include/crypto/rng.h
+++ b/include/crypto/rng.h
@@ -32,6 +32,8 @@ struct crypto_rng;
  *		up a new state, the seed must be provided by the
  *		consumer while invoking this function. The required
  *		size of the seed is defined with @seedsize .
+ * @set_ent:	Set entropy that would otherwise be obtained from
+ *		entropy source.  Internal use only.
  * @seedsize:	The seed size required for a random number generator
  *		initialization defined with this variable. Some
  *		random number generators does not require a seed
@@ -45,6 +47,8 @@ struct rng_alg {
 			const u8 *src, unsigned int slen,
 			u8 *dst, unsigned int dlen);
 	int (*seed)(struct crypto_rng *tfm, const u8 *seed, unsigned int slen);
+	void (*set_ent)(struct crypto_rng *tfm, const u8 *data,
+			unsigned int len);
 
 	unsigned int seedsize;