Freeing all the resources when DAT is disabled need a much more complicated locking system to prevent concurrent enable/disable operations to destroy the internal state of the component. For now it is safe to avoid such freeing operation when DAT is disabled.
Signed-off-by: Antonio Quartulli ordex@autistici.org ---
v2: - removed declaration of batadv_dat_switch() in distributed-arp-table.h
distributed-arp-table.c | 10 ---------- distributed-arp-table.h | 1 - sysfs.c | 3 +-- 3 files changed, 1 insertion(+), 13 deletions(-)
diff --git a/distributed-arp-table.c b/distributed-arp-table.c index c933615..7921030 100644 --- a/distributed-arp-table.c +++ b/distributed-arp-table.c @@ -1061,13 +1061,3 @@ out: batadv_dat_entry_free_ref(dat_entry); return ret; } - -void batadv_dat_switch(struct net_device *net_dev) -{ - struct batadv_priv *bat_priv = netdev_priv(net_dev); - - if (atomic_read(&bat_priv->distributed_arp_table)) - batadv_dat_init(bat_priv); - else - batadv_dat_free(bat_priv); -} diff --git a/distributed-arp-table.h b/distributed-arp-table.h index 63a13a5..d060c03 100644 --- a/distributed-arp-table.h +++ b/distributed-arp-table.h @@ -73,7 +73,6 @@ batadv_dat_init_own_addr(struct batadv_priv *bat_priv, int batadv_dat_init(struct batadv_priv *bat_priv); void batadv_dat_free(struct batadv_priv *bat_priv); int batadv_dat_cache_seq_print_text(struct seq_file *seq, void *offset); -void batadv_dat_switch(struct net_device *net_dev);
/** * batadv_dat_inc_counter - increment the correct DAT packet counter diff --git a/sysfs.c b/sysfs.c index 9dc58b5..84a55cb 100644 --- a/sysfs.c +++ b/sysfs.c @@ -422,8 +422,7 @@ BATADV_ATTR_SIF_BOOL(bonding, S_IRUGO | S_IWUSR, NULL); BATADV_ATTR_SIF_BOOL(bridge_loop_avoidance, S_IRUGO | S_IWUSR, NULL); #endif #ifdef CONFIG_BATMAN_ADV_DAT -BATADV_ATTR_SIF_BOOL(distributed_arp_table, S_IRUGO | S_IWUSR, - batadv_dat_switch); +BATADV_ATTR_SIF_BOOL(distributed_arp_table, S_IRUGO | S_IWUSR, NULL); #endif BATADV_ATTR_SIF_BOOL(fragmentation, S_IRUGO | S_IWUSR, batadv_update_min_mtu); BATADV_ATTR_SIF_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL);