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-rw-r--r--net/hsr/hsr_device.c29
-rw-r--r--net/hsr/hsr_device.h1
-rw-r--r--net/hsr/hsr_framereg.c11
-rw-r--r--net/hsr/hsr_framereg.h3
-rw-r--r--net/hsr/hsr_netlink.c7
-rw-r--r--net/hsr/hsr_slave.c1
6 files changed, 37 insertions, 15 deletions
diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c
index 15c72065df79..f0f9b493c47b 100644
--- a/net/hsr/hsr_device.c
+++ b/net/hsr/hsr_device.c
@@ -227,9 +227,13 @@ static int hsr_dev_xmit(struct sk_buff *skb, struct net_device *dev)
struct hsr_port *master;
master = hsr_port_get_hsr(hsr, HSR_PT_MASTER);
- skb->dev = master->dev;
- hsr_forward_skb(skb, master);
-
+ if (master) {
+ skb->dev = master->dev;
+ hsr_forward_skb(skb, master);
+ } else {
+ atomic_long_inc(&dev->tx_dropped);
+ dev_kfree_skb_any(skb);
+ }
return NETDEV_TX_OK;
}
@@ -344,27 +348,26 @@ static void hsr_announce(struct timer_list *t)
rcu_read_unlock();
}
-/* According to comments in the declaration of struct net_device, this function
- * is "Called from unregister, can be used to call free_netdev". Ok then...
- */
-static void hsr_dev_destroy(struct net_device *hsr_dev)
+void hsr_dev_destroy(struct net_device *hsr_dev)
{
struct hsr_priv *hsr;
struct hsr_port *port;
+ struct hsr_port *tmp;
hsr = netdev_priv(hsr_dev);
hsr_debugfs_term(hsr);
- rtnl_lock();
- hsr_for_each_port(hsr, port)
+ list_for_each_entry_safe(port, tmp, &hsr->ports, port_list)
hsr_del_port(port);
- rtnl_unlock();
del_timer_sync(&hsr->prune_timer);
del_timer_sync(&hsr->announce_timer);
synchronize_rcu();
+
+ hsr_del_self_node(&hsr->self_node_db);
+ hsr_del_nodes(&hsr->node_db);
}
static const struct net_device_ops hsr_device_ops = {
@@ -391,7 +394,6 @@ void hsr_dev_setup(struct net_device *dev)
dev->priv_flags |= IFF_NO_QUEUE;
dev->needs_free_netdev = true;
- dev->priv_destructor = hsr_dev_destroy;
dev->hw_features = NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HIGHDMA |
NETIF_F_GSO_MASK | NETIF_F_HW_CSUM |
@@ -428,6 +430,7 @@ int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
{
struct hsr_priv *hsr;
struct hsr_port *port;
+ struct hsr_port *tmp;
int res;
hsr = netdev_priv(hsr_dev);
@@ -492,10 +495,10 @@ int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
return 0;
fail:
- hsr_for_each_port(hsr, port)
+ list_for_each_entry_safe(port, tmp, &hsr->ports, port_list)
hsr_del_port(port);
err_add_port:
- hsr_del_node(&hsr->self_node_db);
+ hsr_del_self_node(&hsr->self_node_db);
return res;
}
diff --git a/net/hsr/hsr_device.h b/net/hsr/hsr_device.h
index 6d7759c4f5f9..d0fa6b0696d2 100644
--- a/net/hsr/hsr_device.h
+++ b/net/hsr/hsr_device.h
@@ -14,6 +14,7 @@
void hsr_dev_setup(struct net_device *dev);
int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
unsigned char multicast_spec, u8 protocol_version);
+void hsr_dev_destroy(struct net_device *hsr_dev);
void hsr_check_carrier_and_operstate(struct hsr_priv *hsr);
bool is_hsr_master(struct net_device *dev);
int hsr_get_max_mtu(struct hsr_priv *hsr);
diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c
index 2d7a19750436..292be446007b 100644
--- a/net/hsr/hsr_framereg.c
+++ b/net/hsr/hsr_framereg.c
@@ -104,7 +104,7 @@ int hsr_create_self_node(struct list_head *self_node_db,
return 0;
}
-void hsr_del_node(struct list_head *self_node_db)
+void hsr_del_self_node(struct list_head *self_node_db)
{
struct hsr_node *node;
@@ -117,6 +117,15 @@ void hsr_del_node(struct list_head *self_node_db)
}
}
+void hsr_del_nodes(struct list_head *node_db)
+{
+ struct hsr_node *node;
+ struct hsr_node *tmp;
+
+ list_for_each_entry_safe(node, tmp, node_db, mac_list)
+ kfree(node);
+}
+
/* Allocate an hsr_node and add it to node_db. 'addr' is the node's address_A;
* seq_out is used to initialize filtering of outgoing duplicate frames
* originating from the newly added node.
diff --git a/net/hsr/hsr_framereg.h b/net/hsr/hsr_framereg.h
index a3bdcdab469d..89a3ce38151d 100644
--- a/net/hsr/hsr_framereg.h
+++ b/net/hsr/hsr_framereg.h
@@ -12,7 +12,8 @@
struct hsr_node;
-void hsr_del_node(struct list_head *self_node_db);
+void hsr_del_self_node(struct list_head *self_node_db);
+void hsr_del_nodes(struct list_head *node_db);
struct hsr_node *hsr_add_node(struct list_head *node_db, unsigned char addr[],
u16 seq_out);
struct hsr_node *hsr_get_node(struct hsr_port *port, struct sk_buff *skb,
diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c
index 8f8337f893ba..160edd24de4e 100644
--- a/net/hsr/hsr_netlink.c
+++ b/net/hsr/hsr_netlink.c
@@ -69,6 +69,12 @@ static int hsr_newlink(struct net *src_net, struct net_device *dev,
return hsr_dev_finalize(dev, link, multicast_spec, hsr_version);
}
+static void hsr_dellink(struct net_device *hsr_dev, struct list_head *head)
+{
+ hsr_dev_destroy(hsr_dev);
+ unregister_netdevice_queue(hsr_dev, head);
+}
+
static int hsr_fill_info(struct sk_buff *skb, const struct net_device *dev)
{
struct hsr_priv *hsr;
@@ -113,6 +119,7 @@ static struct rtnl_link_ops hsr_link_ops __read_mostly = {
.priv_size = sizeof(struct hsr_priv),
.setup = hsr_dev_setup,
.newlink = hsr_newlink,
+ .dellink = hsr_dellink,
.fill_info = hsr_fill_info,
};
diff --git a/net/hsr/hsr_slave.c b/net/hsr/hsr_slave.c
index 88b6705ded83..ee561297d8a7 100644
--- a/net/hsr/hsr_slave.c
+++ b/net/hsr/hsr_slave.c
@@ -193,4 +193,5 @@ void hsr_del_port(struct hsr_port *port)
if (port != master)
dev_put(port->dev);
+ kfree(port);
}