netdev - [PATCH 40/50] batman-adv: use dev_hw_addr_random() instead of random_ether

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Date:	Wed,  8 Feb 2012 22:10:47 +0100
From:	Danny Kukawka <danny.kukawka@...ect.de>
To:	Marek Lindner <lindner_marek@...oo.de>
Cc:	Danny Kukawka <dkukawka@...e.de>,
	Simon Wunderlich <siwu@....tu-chemnitz.de>,
	"David S. Miller" <davem@...emloft.net>,
	b.a.t.m.a.n@...ts.open-mesh.org, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: [PATCH 40/50] batman-adv: 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/batman-adv/soft-interface.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 987c75a..865a485 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -541,6 +541,9 @@ static int interface_set_mac_addr(struct net_device *dev, void *p)
 	}
 
 	memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
+	if (dev->addr_assign_type & NET_ADDR_RANDOM)
+		dev->addr_assign_type ^= NET_ADDR_RANDOM;
+
 	return 0;
 }
 
@@ -783,7 +786,6 @@ static const struct net_device_ops bat_netdev_ops = {
 static void interface_setup(struct net_device *dev)
 {
 	struct bat_priv *priv = netdev_priv(dev);
-	char dev_addr[ETH_ALEN];
 
 	ether_setup(dev);
 
@@ -800,8 +802,7 @@ static void interface_setup(struct net_device *dev)
 	dev->hard_header_len = BAT_HEADER_LEN;
 
 	/* generate random address */
-	random_ether_addr(dev_addr);
-	memcpy(dev->dev_addr, dev_addr, ETH_ALEN);
+	dev_hw_addr_random(dev, dev->dev_addr);
 
 	SET_ETHTOOL_OPS(dev, &bat_ethtool_ops);
 
-- 
1.7.7.3

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