net: core functions cleanup

The following functions are not used outside of net/core/dev.c
and should be declared static.

  call_netdevice_notifiers_info
  __dev_remove_offload
  netdev_has_any_upper_dev
  __netdev_adjacent_dev_remove
  __netdev_adjacent_dev_link_lists
  __netdev_adjacent_dev_unlink_lists
  __netdev_adjacent_dev_unlink
  __netdev_adjacent_dev_link_neighbour
  __netdev_adjacent_dev_unlink_neighbour

And the following are never used and should be deleted
  netdev_lower_dev_get_private_rcu
  __netdev_find_adj_rcu

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 26 insertions, 62 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 88afa8048a7c..bec60c481966 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1741,8 +1741,6 @@ netdev_notifier_info_to_dev(const struct netdev_notifier_info *info)
         return info->dev;
 }
 
-int call_netdevice_notifiers_info(unsigned long val, struct net_device *dev,
-                                  struct netdev_notifier_info *info);
 int call_netdevice_notifiers(unsigned long val, struct net_device *dev);
 
 
@@ -1809,7 +1807,6 @@ void dev_remove_pack(struct packet_type *pt);
 void __dev_remove_pack(struct packet_type *pt);
 void dev_add_offload(struct packet_offload *po);
 void dev_remove_offload(struct packet_offload *po);
-void __dev_remove_offload(struct packet_offload *po);
 
 struct net_device *dev_get_by_flags_rcu(struct net *net, unsigned short flags,
                                         unsigned short mask);
@@ -2867,7 +2864,6 @@ extern int		weight_p;
 extern int              bpf_jit_enable;
 
 bool netdev_has_upper_dev(struct net_device *dev, struct net_device *upper_dev);
-bool netdev_has_any_upper_dev(struct net_device *dev);
 struct net_device *netdev_all_upper_get_next_dev_rcu(struct net_device *dev,
                                                      struct list_head **iter);
 
@@ -2907,8 +2903,6 @@ int netdev_master_upper_dev_link_private(struct net_device *dev,
                                          void *private);
 void netdev_upper_dev_unlink(struct net_device *dev,
                              struct net_device *upper_dev);
-void *netdev_lower_dev_get_private_rcu(struct net_device *dev,
-                                       struct net_device *lower_dev);
 void *netdev_lower_dev_get_private(struct net_device *dev,
                                    struct net_device *lower_dev);
 int skb_checksum_help(struct sk_buff *skb);
diff --git a/net/core/dev.c b/net/core/dev.c
index cc9ab80581d7..77f43aa373fe 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -480,7 +480,7 @@ EXPORT_SYMBOL(dev_add_offload);
  *      and must not be freed until after all the CPU's have gone
  *      through a quiescent state.
  */
-void __dev_remove_offload(struct packet_offload *po)
+static void __dev_remove_offload(struct packet_offload *po)
 {
         struct list_head *head = &offload_base;
         struct packet_offload *po1;
@@ -498,7 +498,6 @@ void __dev_remove_offload(struct packet_offload *po)
 out:
         spin_unlock(&offload_lock);
 }
-EXPORT_SYMBOL(__dev_remove_offload);
 
 /**
  *      dev_remove_offload       - remove packet offload handler
@@ -1566,14 +1565,14 @@ EXPORT_SYMBOL(unregister_netdevice_notifier);
  *      are as for raw_notifier_call_chain().
  */
 
-int call_netdevice_notifiers_info(unsigned long val, struct net_device *dev,
-                                  struct netdev_notifier_info *info)
+static int call_netdevice_notifiers_info(unsigned long val,
+                                         struct net_device *dev,
+                                         struct netdev_notifier_info *info)
 {
         ASSERT_RTNL();
         netdev_notifier_info_init(info, dev);
         return raw_notifier_call_chain(&netdev_chain, val, info);
 }
-EXPORT_SYMBOL(call_netdevice_notifiers_info);
 
 /**
  *      call_netdevice_notifiers - call all network notifier blocks
@@ -4355,19 +4354,6 @@ struct netdev_adjacent {
         struct rcu_head rcu;
 };
 
-static struct netdev_adjacent *__netdev_find_adj_rcu(struct net_device *dev,
-                                                     struct net_device *adj_dev,
-                                                     struct list_head *adj_list)
-{
-        struct netdev_adjacent *adj;
-
-        list_for_each_entry_rcu(adj, adj_list, list) {
-                if (adj->dev == adj_dev)
-                        return adj;
-        }
-        return NULL;
-}
-
 static struct netdev_adjacent *__netdev_find_adj(struct net_device *dev,
                                                  struct net_device *adj_dev,
                                                  struct list_head *adj_list)
@@ -4406,13 +4392,12 @@ EXPORT_SYMBOL(netdev_has_upper_dev);
  * Find out if a device is linked to an upper device and return true in case
  * it is. The caller must hold the RTNL lock.
  */
-bool netdev_has_any_upper_dev(struct net_device *dev)
+static bool netdev_has_any_upper_dev(struct net_device *dev)
 {
         ASSERT_RTNL();
 
         return !list_empty(&dev->all_adj_list.upper);
 }
-EXPORT_SYMBOL(netdev_has_any_upper_dev);
 
 /**
  * netdev_master_upper_dev_get - Get master upper device
@@ -4644,9 +4629,9 @@ free_adj:
         return ret;
 }
 
-void __netdev_adjacent_dev_remove(struct net_device *dev,
-                                  struct net_device *adj_dev,
-                                  struct list_head *dev_list)
+static void __netdev_adjacent_dev_remove(struct net_device *dev,
+                                         struct net_device *adj_dev,
+                                         struct list_head *dev_list)
 {
         struct netdev_adjacent *adj;
         char linkname[IFNAMSIZ+7];
@@ -4684,11 +4669,11 @@ void __netdev_adjacent_dev_remove(struct net_device *dev,
         kfree_rcu(adj, rcu);
 }
 
-int __netdev_adjacent_dev_link_lists(struct net_device *dev,
-                                     struct net_device *upper_dev,
-                                     struct list_head *up_list,
-                                     struct list_head *down_list,
-                                     void *private, bool master)
+static int __netdev_adjacent_dev_link_lists(struct net_device *dev,
+                                            struct net_device *upper_dev,
+                                            struct list_head *up_list,
+                                            struct list_head *down_list,
+                                            void *private, bool master)
 {
         int ret;
 
@@ -4707,8 +4692,8 @@ int __netdev_adjacent_dev_link_lists(struct net_device *dev,
         return 0;
 }
 
-int __netdev_adjacent_dev_link(struct net_device *dev,
-                               struct net_device *upper_dev)
+static int __netdev_adjacent_dev_link(struct net_device *dev,
+                                      struct net_device *upper_dev)
 {
         return __netdev_adjacent_dev_link_lists(dev, upper_dev,
                                                 &dev->all_adj_list.upper,
@@ -4716,26 +4701,26 @@ int __netdev_adjacent_dev_link(struct net_device *dev,
                                                 NULL, false);
 }
 
-void __netdev_adjacent_dev_unlink_lists(struct net_device *dev,
-                                        struct net_device *upper_dev,
-                                        struct list_head *up_list,
-                                        struct list_head *down_list)
+static void __netdev_adjacent_dev_unlink_lists(struct net_device *dev,
+                                               struct net_device *upper_dev,
+                                               struct list_head *up_list,
+                                               struct list_head *down_list)
 {
         __netdev_adjacent_dev_remove(dev, upper_dev, up_list);
         __netdev_adjacent_dev_remove(upper_dev, dev, down_list);
 }
 
-void __netdev_adjacent_dev_unlink(struct net_device *dev,
-                                  struct net_device *upper_dev)
+static void __netdev_adjacent_dev_unlink(struct net_device *dev,
+                                         struct net_device *upper_dev)
 {
         __netdev_adjacent_dev_unlink_lists(dev, upper_dev,
                                            &dev->all_adj_list.upper,
                                            &upper_dev->all_adj_list.lower);
 }
 
-int __netdev_adjacent_dev_link_neighbour(struct net_device *dev,
-                                         struct net_device *upper_dev,
-                                         void *private, bool master)
+static int __netdev_adjacent_dev_link_neighbour(struct net_device *dev,
+                                                struct net_device *upper_dev,
+                                                void *private, bool master)
 {
         int ret = __netdev_adjacent_dev_link(dev, upper_dev);
 
@@ -4754,8 +4739,8 @@ int __netdev_adjacent_dev_link_neighbour(struct net_device *dev,
         return 0;
 }
 
-void __netdev_adjacent_dev_unlink_neighbour(struct net_device *dev,
-                                            struct net_device *upper_dev)
+static void __netdev_adjacent_dev_unlink_neighbour(struct net_device *dev,
+                                                   struct net_device *upper_dev)
 {
         __netdev_adjacent_dev_unlink(dev, upper_dev);
         __netdev_adjacent_dev_unlink_lists(dev, upper_dev,
@@ -4944,21 +4929,6 @@ void netdev_upper_dev_unlink(struct net_device *dev,
 }
 EXPORT_SYMBOL(netdev_upper_dev_unlink);
 
-void *netdev_lower_dev_get_private_rcu(struct net_device *dev,
-                                       struct net_device *lower_dev)
-{
-        struct netdev_adjacent *lower;
-
-        if (!lower_dev)
-                return NULL;
-        lower = __netdev_find_adj_rcu(dev, lower_dev, &dev->adj_list.lower);
-        if (!lower)
-                return NULL;
-
-        return lower->private;
-}
-EXPORT_SYMBOL(netdev_lower_dev_get_private_rcu);
-
 void *netdev_lower_dev_get_private(struct net_device *dev,
                                    struct net_device *lower_dev)
 {