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net/hsr: Use list_head (and rcu) instead of array for slave devices.

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Signed-off-by: Arvid Brodin <arvid.brodin@alten.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arvid Brodin
2014-07-04 23:38:05 +02:00
committed by David S. Miller
parent 51f3c60531
commit c5a7591172
9 changed files with 439 additions and 406 deletions
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57
net/hsr/hsr_netlink.c
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@@ -64,7 +64,7 @@ static int hsr_newlink(struct net *src_net, struct net_device *dev,
static int hsr_fill_info(struct sk_buff *skb, const struct net_device *dev)
{
struct hsr_priv *hsr;
struct net_device *slave;
struct hsr_port *port;
int res;
hsr = netdev_priv(dev);
@@ -72,17 +72,17 @@ static int hsr_fill_info(struct sk_buff *skb, const struct net_device *dev)
res = 0;
rcu_read_lock();
slave = hsr->slave[0];
if (slave)
res = nla_put_u32(skb, IFLA_HSR_SLAVE1, slave->ifindex);
port = hsr_port_get_hsr(hsr, HSR_PT_SLAVE_A);
if (port)
res = nla_put_u32(skb, IFLA_HSR_SLAVE1, port->dev->ifindex);
rcu_read_unlock();
if (res)
goto nla_put_failure;
rcu_read_lock();
slave = hsr->slave[1];
if (slave)
res = nla_put_u32(skb, IFLA_HSR_SLAVE2, slave->ifindex);
port = hsr_port_get_hsr(hsr, HSR_PT_SLAVE_B);
if (port)
res = nla_put_u32(skb, IFLA_HSR_SLAVE2, port->dev->ifindex);
rcu_read_unlock();
if (res)
goto nla_put_failure;
@@ -141,13 +141,12 @@ static const struct genl_multicast_group hsr_mcgrps[] = {
* (i.e. a link has failed somewhere).
*/
void hsr_nl_ringerror(struct hsr_priv *hsr, unsigned char addr[ETH_ALEN],
enum hsr_dev_idx dev_idx)
struct hsr_port *port)
{
struct sk_buff *skb;
struct net_device *slave;
void *msg_head;
struct hsr_port *master;
int res;
int ifindex;
skb = genlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
if (!skb)
@@ -161,15 +160,7 @@ void hsr_nl_ringerror(struct hsr_priv *hsr, unsigned char addr[ETH_ALEN],
if (res < 0)
goto nla_put_failure;
rcu_read_lock();
slave = hsr->slave[dev_idx];
if (slave)
ifindex = slave->ifindex;
else
ifindex = -1;
rcu_read_unlock();
res = nla_put_u32(skb, HSR_A_IFINDEX, ifindex);
res = nla_put_u32(skb, HSR_A_IFINDEX, port->dev->ifindex);
if (res < 0)
goto nla_put_failure;
@@ -182,7 +173,10 @@ nla_put_failure:
kfree_skb(skb);
fail:
netdev_warn(hsr->dev, "Could not send HSR ring error message\n");
rcu_read_lock();
master = hsr_port_get_hsr(hsr, HSR_PT_MASTER);
netdev_warn(master->dev, "Could not send HSR ring error message\n");
rcu_read_unlock();
}
/* This is called when we haven't heard from the node with MAC address addr for
@@ -192,6 +186,7 @@ void hsr_nl_nodedown(struct hsr_priv *hsr, unsigned char addr[ETH_ALEN])
{
struct sk_buff *skb;
void *msg_head;
struct hsr_port *master;
int res;
skb = genlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
@@ -216,7 +211,10 @@ nla_put_failure:
kfree_skb(skb);
fail:
netdev_warn(hsr->dev, "Could not send HSR node down\n");
rcu_read_lock();
master = hsr_port_get_hsr(hsr, HSR_PT_MASTER);
netdev_warn(master->dev, "Could not send HSR node down\n");
rcu_read_unlock();
}
@@ -232,12 +230,13 @@ static int hsr_get_node_status(struct sk_buff *skb_in, struct genl_info *info)
{
/* For receiving */
struct nlattr *na;
struct net_device *hsr_dev, *slave;
struct net_device *hsr_dev;
/* For sending */
struct sk_buff *skb_out;
void *msg_head;
struct hsr_priv *hsr;
struct hsr_port *port;
unsigned char hsr_node_addr_b[ETH_ALEN];
int hsr_node_if1_age;
u16 hsr_node_if1_seq;
@@ -319,9 +318,10 @@ static int hsr_get_node_status(struct sk_buff *skb_in, struct genl_info *info)
if (res < 0)
goto nla_put_failure;
rcu_read_lock();
slave = hsr->slave[0];
if (slave)
res = nla_put_u32(skb_out, HSR_A_IF1_IFINDEX, slave->ifindex);
port = hsr_port_get_hsr(hsr, HSR_PT_SLAVE_A);
if (port)
res = nla_put_u32(skb_out, HSR_A_IF1_IFINDEX,
port->dev->ifindex);
rcu_read_unlock();
if (res < 0)
goto nla_put_failure;
@@ -333,9 +333,10 @@ static int hsr_get_node_status(struct sk_buff *skb_in, struct genl_info *info)
if (res < 0)
goto nla_put_failure;
rcu_read_lock();
slave = hsr->slave[1];
if (slave)
res = nla_put_u32(skb_out, HSR_A_IF2_IFINDEX, slave->ifindex);
port = hsr_port_get_hsr(hsr, HSR_PT_SLAVE_B);
if (port)
res = nla_put_u32(skb_out, HSR_A_IF2_IFINDEX,
port->dev->ifindex);
rcu_read_unlock();
if (res < 0)
goto nla_put_failure;