net: remove search_list from netdev_adjacent
We already don't need it cause we see every upper/lower device in the list
already.
CC: "David S. Miller" <davem@davemloft.net>
CC: Eric Dumazet <edumazet@google.com>
CC: Jiri Pirko <jiri@resnulli.us>
CC: Alexander Duyck <alexander.h.duyck@intel.com>
CC: Cong Wang <amwang@redhat.com>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/dev.c b/net/core/dev.c
index 2aa914e..749925a 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4381,42 +4381,8 @@
struct list_head list;
struct rcu_head rcu;
- struct list_head search_list;
};
-static void __append_search_uppers(struct list_head *search_list,
- struct net_device *dev)
-{
- struct netdev_adjacent *upper;
-
- list_for_each_entry(upper, &dev->upper_dev_list, list) {
- /* check if this upper is not already in search list */
- if (list_empty(&upper->search_list))
- list_add_tail(&upper->search_list, search_list);
- }
-}
-
-static bool __netdev_search_upper_dev(struct net_device *dev,
- struct net_device *upper_dev)
-{
- LIST_HEAD(search_list);
- struct netdev_adjacent *upper;
- struct netdev_adjacent *tmp;
- bool ret = false;
-
- __append_search_uppers(&search_list, dev);
- list_for_each_entry(upper, &search_list, search_list) {
- if (upper->dev == upper_dev) {
- ret = true;
- break;
- }
- __append_search_uppers(&search_list, upper->dev);
- }
- list_for_each_entry_safe(upper, tmp, &search_list, search_list)
- INIT_LIST_HEAD(&upper->search_list);
- return ret;
-}
-
static struct netdev_adjacent *__netdev_find_adj(struct net_device *dev,
struct net_device *adj_dev,
bool upper)
@@ -4544,7 +4510,6 @@
adj->master = master;
adj->neighbour = neighbour;
adj->ref_nr = 1;
- INIT_LIST_HEAD(&adj->search_list);
dev_hold(adj_dev);
pr_debug("dev_hold for %s, because of %s link added from %s to %s\n",
@@ -4671,7 +4636,7 @@
return -EBUSY;
/* To prevent loops, check if dev is not upper device to upper_dev. */
- if (__netdev_search_upper_dev(upper_dev, dev))
+ if (__netdev_find_upper(upper_dev, dev))
return -EBUSY;
if (__netdev_find_upper(dev, upper_dev))