From: Madhuparna Bhowmik madhuparnabhowmik10@gmail.com
hlist_for_each_entry_rcu() has built-in RCU and lock checking.
Pass cond argument to hlist_for_each_entry_rcu() to silence false lockdep warnings when CONFIG_PROVE_RCU_LIST is enabled by default.
Signed-off-by: Madhuparna Bhowmik madhuparnabhowmik10@gmail.com --- net/batman-adv/translation-table.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index 8a482c5ec67b..0e3c31cbe0e8 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -862,7 +862,8 @@ batadv_tt_prepare_tvlv_global_data(struct batadv_orig_node *orig_node, u8 *tt_change_ptr;
spin_lock_bh(&orig_node->vlan_list_lock); - hlist_for_each_entry_rcu(vlan, &orig_node->vlan_list, list) { + hlist_for_each_entry_rcu(vlan, &orig_node->vlan_list, list, + lockdep_is_held(&orig_node->vlan_list_lock)) { num_vlan++; num_entries += atomic_read(&vlan->tt.num_entries); } @@ -888,7 +889,8 @@ batadv_tt_prepare_tvlv_global_data(struct batadv_orig_node *orig_node, (*tt_data)->num_vlan = htons(num_vlan);
tt_vlan = (struct batadv_tvlv_tt_vlan_data *)(*tt_data + 1); - hlist_for_each_entry_rcu(vlan, &orig_node->vlan_list, list) { + hlist_for_each_entry_rcu(vlan, &orig_node->vlan_list, list, + lockdep_is_held(&orig_node->vlan_list_lock)) { tt_vlan->vid = htons(vlan->vid); tt_vlan->crc = htonl(vlan->tt.crc);
@@ -937,7 +939,8 @@ batadv_tt_prepare_tvlv_local_data(struct batadv_priv *bat_priv, int change_offset;
spin_lock_bh(&bat_priv->softif_vlan_list_lock); - hlist_for_each_entry_rcu(vlan, &bat_priv->softif_vlan_list, list) { + hlist_for_each_entry_rcu(vlan, &bat_priv->softif_vlan_list, list, + lockdep_is_held(&bat_priv->softif_vlan_list_lock)) { vlan_entries = atomic_read(&vlan->tt.num_entries); if (vlan_entries < 1) continue; @@ -967,7 +970,8 @@ batadv_tt_prepare_tvlv_local_data(struct batadv_priv *bat_priv, (*tt_data)->num_vlan = htons(num_vlan);
tt_vlan = (struct batadv_tvlv_tt_vlan_data *)(*tt_data + 1); - hlist_for_each_entry_rcu(vlan, &bat_priv->softif_vlan_list, list) { + hlist_for_each_entry_rcu(vlan, &bat_priv->softif_vlan_list, list, + lockdep_is_held(&bat_priv->softif_vlan_list_lock)) { vlan_entries = atomic_read(&vlan->tt.num_entries); if (vlan_entries < 1) continue;