diff options
| -rw-r--r-- | net/hsr/hsr_framereg.c | 16 | ||||
| -rw-r--r-- | net/hsr/hsr_framereg.h | 2 |
2 files changed, 11 insertions, 7 deletions
diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c index b3c6ffa1894d..62272d76545c 100644 --- a/net/hsr/hsr_framereg.c +++ b/net/hsr/hsr_framereg.c @@ -27,11 +27,11 @@ u32 hsr_mac_hash(struct hsr_priv *hsr, const unsigned char *addr) return reciprocal_scale(hash, hsr->hash_buckets); } -struct hsr_node *hsr_node_get_first(struct hlist_head *head) +struct hsr_node *hsr_node_get_first(struct hlist_head *head, int cond) { struct hlist_node *first; - first = rcu_dereference(hlist_first_rcu(head)); + first = rcu_dereference_bh_check(hlist_first_rcu(head), cond); if (first) return hlist_entry(first, struct hsr_node, mac_list); @@ -59,7 +59,8 @@ bool hsr_addr_is_self(struct hsr_priv *hsr, unsigned char *addr) { struct hsr_node *node; - node = hsr_node_get_first(&hsr->self_node_db); + node = hsr_node_get_first(&hsr->self_node_db, + lockdep_is_held(&hsr->list_lock)); if (!node) { WARN_ONCE(1, "HSR: No self node\n"); return false; @@ -106,7 +107,8 @@ int hsr_create_self_node(struct hsr_priv *hsr, ether_addr_copy(node->macaddress_B, addr_b); spin_lock_bh(&hsr->list_lock); - oldnode = hsr_node_get_first(self_node_db); + oldnode = hsr_node_get_first(self_node_db, + lockdep_is_held(&hsr->list_lock)); if (oldnode) { hlist_replace_rcu(&oldnode->mac_list, &node->mac_list); spin_unlock_bh(&hsr->list_lock); @@ -125,7 +127,8 @@ void hsr_del_self_node(struct hsr_priv *hsr) struct hsr_node *node; spin_lock_bh(&hsr->list_lock); - node = hsr_node_get_first(self_node_db); + node = hsr_node_get_first(self_node_db, + lockdep_is_held(&hsr->list_lock)); if (node) { hlist_del_rcu(&node->mac_list); kfree_rcu(node, rcu_head); @@ -597,7 +600,8 @@ void *hsr_get_next_node(struct hsr_priv *hsr, void *_pos, hash = hsr_mac_hash(hsr, addr); if (!_pos) { - node = hsr_node_get_first(&hsr->node_db[hash]); + node = hsr_node_get_first(&hsr->node_db[hash], + lockdep_is_held(&hsr->list_lock)); if (node) ether_addr_copy(addr, node->macaddress_A); return node; diff --git a/net/hsr/hsr_framereg.h b/net/hsr/hsr_framereg.h index d7cce6b161e3..2efd03fb3465 100644 --- a/net/hsr/hsr_framereg.h +++ b/net/hsr/hsr_framereg.h @@ -29,7 +29,7 @@ struct hsr_frame_info { }; u32 hsr_mac_hash(struct hsr_priv *hsr, const unsigned char *addr); -struct hsr_node *hsr_node_get_first(struct hlist_head *head); +struct hsr_node *hsr_node_get_first(struct hlist_head *head, int cond); void hsr_del_self_node(struct hsr_priv *hsr); void hsr_del_nodes(struct hlist_head *node_db); struct hsr_node *hsr_get_node(struct hsr_port *port, struct hlist_head *node_db, |