From c84dbf61a7b322188d2a7fddc0cc6317ac6713e2 Mon Sep 17 00:00:00 2001
From: Torsten Duwe <duwe@lst.de>
Date: Sat, 14 Jun 2014 23:38:36 -0400
Subject: random: add_hwgenerator_randomness() for feeding entropy from devices

This patch adds an interface to the random pool for feeding entropy
in-kernel.

Signed-off-by: Torsten Duwe <duwe@suse.de>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Acked-by: H. Peter Anvin <hpa@zytor.com>
---
 include/linux/hw_random.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'include/linux/hw_random.h')

diff --git a/include/linux/hw_random.h b/include/linux/hw_random.h
index b4b0eef5fddf..3f075ff00411 100644
--- a/include/linux/hw_random.h
+++ b/include/linux/hw_random.h
@@ -47,5 +47,7 @@ struct hwrng {
 extern int hwrng_register(struct hwrng *rng);
 /** Unregister a Hardware Random Number Generator driver. */
 extern void hwrng_unregister(struct hwrng *rng);
+/** Feed random bits into the pool. */
+extern void add_hwgenerator_randomness(const char *buffer, size_t count, size_t entropy);
 
 #endif /* LINUX_HWRANDOM_H_ */
-- 
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