diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h
index 40adefd..ae04901 100644
--- a/include/linux/inetdevice.h
+++ b/include/linux/inetdevice.h
@@ -59,6 +59,11 @@
 	in_dev->cnf.data[index] = val;
 }
 
+static inline void ipv4_devconf_setall(struct in_device *in_dev)
+{
+	bitmap_fill(in_dev->cnf.state, __NET_IPV4_CONF_MAX - 1);
+}
+
 #define IN_DEV_CONF_GET(in_dev, attr) \
 	ipv4_devconf_get((in_dev), NET_IPV4_CONF_ ## attr)
 #define IN_DEV_CONF_SET(in_dev, attr, val) \
@@ -125,7 +130,6 @@
 extern int		inet_addr_onlink(struct in_device *in_dev, __be32 a, __be32 b);
 extern int		devinet_ioctl(unsigned int cmd, void __user *);
 extern void		devinet_init(void);
-extern struct in_device *inetdev_init(struct net_device *dev);
 extern struct in_device	*inetdev_by_index(int);
 extern __be32		inet_select_addr(const struct net_device *dev, __be32 dst, int scope);
 extern __be32		inet_confirm_addr(const struct net_device *dev, __be32 dst, __be32 local, int scope);
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index e197347..354e800 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -147,7 +147,7 @@
 	}
 }
 
-struct in_device *inetdev_init(struct net_device *dev)
+static struct in_device *inetdev_init(struct net_device *dev)
 {
 	struct in_device *in_dev;
 
@@ -405,12 +405,10 @@
 	ASSERT_RTNL();
 
 	if (!in_dev) {
-		in_dev = inetdev_init(dev);
-		if (!in_dev) {
-			inet_free_ifa(ifa);
-			return -ENOBUFS;
-		}
+		inet_free_ifa(ifa);
+		return -ENOBUFS;
 	}
+	ipv4_devconf_setall(in_dev);
 	if (ifa->ifa_dev != in_dev) {
 		BUG_TRAP(!ifa->ifa_dev);
 		in_dev_hold(in_dev);
@@ -520,13 +518,12 @@
 
 	in_dev = __in_dev_get_rtnl(dev);
 	if (in_dev == NULL) {
-		in_dev = inetdev_init(dev);
-		if (in_dev == NULL) {
-			err = -ENOBUFS;
-			goto errout;
-		}
+		err = -ENOBUFS;
+		goto errout;
 	}
 
+	ipv4_devconf_setall(in_dev);
+
 	ifa = inet_alloc_ifa();
 	if (ifa == NULL) {
 		/*
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index d570d3a..d96582a 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -152,9 +152,11 @@
 			dev->flags |= IFF_MULTICAST;
 
 			in_dev = __in_dev_get_rtnl(dev);
-			if (in_dev == NULL && (in_dev = inetdev_init(dev)) == NULL)
+			if (in_dev == NULL)
 				goto failure;
-			IN_DEV_CONF_SET(in_dev, RP_FILTER, 0);
+
+			ipv4_devconf_setall(in_dev);
+			IPV4_DEVCONF(in_dev->cnf, RP_FILTER) = 0;
 
 			if (dev_open(dev))
 				goto failure;
@@ -218,10 +220,15 @@
 	}
 	dev->iflink = 0;
 
-	if ((in_dev = inetdev_init(dev)) == NULL)
+	rcu_read_lock();
+	if ((in_dev = __in_dev_get_rcu(dev)) == NULL) {
+		rcu_read_unlock();
 		goto failure;
+	}
 
-	IN_DEV_CONF_SET(in_dev, RP_FILTER, 0);
+	ipv4_devconf_setall(in_dev);
+	IPV4_DEVCONF(in_dev->cnf, RP_FILTER) = 0;
+	rcu_read_unlock();
 
 	if (dev_open(dev))
 		goto failure;