1 files changed, 8 insertions, 7 deletions

diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h
index ccd5b07d678d..ae8fdc54e0c0 100644
--- a/include/linux/inetdevice.h
+++ b/include/linux/inetdevice.h
@@ -41,10 +41,12 @@ enum
         __IPV4_DEVCONF_MAX
 };
 
+#define IPV4_DEVCONF_MAX (__IPV4_DEVCONF_MAX - 1)
+
 struct ipv4_devconf {
         void    *sysctl;
-        int     data[__IPV4_DEVCONF_MAX - 1];
-        DECLARE_BITMAP(state, __IPV4_DEVCONF_MAX - 1);
+        int     data[IPV4_DEVCONF_MAX];
+        DECLARE_BITMAP(state, IPV4_DEVCONF_MAX);
 };
 
 struct in_device {
@@ -52,9 +54,8 @@ struct in_device {
         atomic_t                refcnt;
         int                     dead;
         struct in_ifaddr        *ifa_list;      /* IP ifaddr chain              */
-        rwlock_t                mc_list_lock;
-        struct ip_mc_list       *mc_list;       /* IP multicast filter chain    */
-        int                     mc_count;                 /* Number of installed mcasts */
+        struct ip_mc_list __rcu *mc_list;       /* IP multicast filter chain    */
+        int                     mc_count;       /* Number of installed mcasts   */
         spinlock_t              mc_tomb_lock;
         struct ip_mc_list       *mc_tomb;
         unsigned long           mr_v1_seen;
@@ -91,7 +92,7 @@ static inline void ipv4_devconf_set(struct in_device *in_dev, int index,
 
 static inline void ipv4_devconf_setall(struct in_device *in_dev)
 {
-        bitmap_fill(in_dev->cnf.state, __IPV4_DEVCONF_MAX - 1);
+        bitmap_fill(in_dev->cnf.state, IPV4_DEVCONF_MAX);
 }
 
 #define IN_DEV_CONF_GET(in_dev, attr) \
@@ -221,7 +222,7 @@ static inline struct in_device *in_dev_get(const struct net_device *dev)
 
 static inline struct in_device *__in_dev_get_rtnl(const struct net_device *dev)
 {
-        return rcu_dereference_check(dev->ip_ptr, lockdep_rtnl_is_held());
+        return rtnl_dereference(dev->ip_ptr);
 }
 
 extern void in_dev_finish_destroy(struct in_device *idev);