linux-kernel - [PATCH 47/50] bridge: use dev_hw_addr_random() instead of random_ether

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Date:	Wed,  8 Feb 2012 22:10:54 +0100
From:	Danny Kukawka <danny.kukawka@...ect.de>
To:	Stephen Hemminger <shemminger@...tta.com>
Cc:	Danny Kukawka <dkukawka@...e.de>,
	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, bridge@...ts.linux-foundation.org
Subject: [PATCH 47/50] bridge: use dev_hw_addr_random() instead of random_ether_addr()

Use dev_hw_addr_random() instead of calling random_ether_addr()
to set addr_assign_type correctly to NET_ADDR_RANDOM.

Reset the state to NET_ADDR_PERM as soon as the MAC get
changed via .ndo_set_mac_address.

Signed-off-by: Danny Kukawka <danny.kukawka@...ect.de>
---
 net/bridge/br_device.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 71773b0..a25ed22 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -172,6 +172,10 @@ static int br_set_mac_address(struct net_device *dev, void *p)
 	spin_lock_bh(&br->lock);
 	if (compare_ether_addr(dev->dev_addr, addr->sa_data)) {
 		memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
+		if (dev->addr_assign_type & NET_ADDR_RANDOM) {
+			/* set back to NET_ADDR_PERM */
+			dev->addr_assign_type ^= NET_ADDR_RANDOM;
+		}
 		br_fdb_change_mac_address(br, addr->sa_data);
 		br_stp_change_bridge_id(br, addr->sa_data);
 	}
@@ -334,7 +338,7 @@ void br_dev_setup(struct net_device *dev)
 {
 	struct net_bridge *br = netdev_priv(dev);
 
-	random_ether_addr(dev->dev_addr);
+	dev_hw_addr_random(dev, dev->dev_addr);
 	ether_setup(dev);
 
 	dev->netdev_ops = &br_netdev_ops;
-- 
1.7.7.3

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