linux-kernel - [PATCH 05/10] net: feed /dev/random with the MAC address when registering a device

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Date:	Thu,  5 Jul 2012 14:12:08 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	Linux Kernel Developers List <linux-kernel@...r.kernel.org>
Cc:	torvalds@...ux-foundation.org, w@....eu, ewust@...ch.edu,
	zakir@...ch.edu, greg@...ah.com, mpm@...enic.com,
	nadiah@...ucsd.edu, jhalderm@...ch.edu, tglx@...utronix.de,
	davem@...emloft.net, Theodore Ts'o <tytso@....edu>,
	stable@...nel.org
Subject: [PATCH 05/10] net: feed /dev/random with the MAC address when registering a device

Cc: David Miller <davem@...emloft.net>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: "Theodore Ts'o" <tytso@....edu>
Cc: stable@...nel.org
---
 net/core/dev.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/core/dev.c b/net/core/dev.c
index 6df2140..46f2f0c 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5542,6 +5542,9 @@ int register_netdevice(struct net_device *dev)
 	dev_hold(dev);
 	list_netdevice(dev);
 
+	if (dev->dev_addr)
+		add_device_randomness(dev->dev_addr, dev->addr_len);
+
 	/* Notify protocols, that a new device appeared. */
 	ret = call_netdevice_notifiers(NETDEV_REGISTER, dev);
 	ret = notifier_to_errno(ret);
-- 
1.7.11.1.108.gb129051

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