vxlan: Fix sparse warnings
This patch fixes sparse warnings when incorrectly handling the port number
and using int instead of unsigned int iterating through &vn->sock_list[].
Keeping the port as __be16 also makes things clearer wrt endianess.
Also, it was pointed out that vxlan_get_rx_port() had unnecessary checks
which got removed.
Signed-off-by: Joseph Gasparakis <joseph.gasparakis@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index bf64b41..2400b1b 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -564,7 +564,7 @@
struct net_device *dev;
struct net *net = sock_net(sk);
sa_family_t sa_family = sk->sk_family;
- u16 port = htons(inet_sk(sk)->inet_sport);
+ __be16 port = inet_sk(sk)->inet_sport;
rcu_read_lock();
for_each_netdev_rcu(net, dev) {
@@ -581,7 +581,7 @@
struct net_device *dev;
struct net *net = sock_net(sk);
sa_family_t sa_family = sk->sk_family;
- u16 port = htons(inet_sk(sk)->inet_sport);
+ __be16 port = inet_sk(sk)->inet_sport;
rcu_read_lock();
for_each_netdev_rcu(net, dev) {
@@ -2021,7 +2021,8 @@
};
/* Calls the ndo_add_vxlan_port of the caller in order to
- * supply the listening VXLAN udp ports.
+ * supply the listening VXLAN udp ports. Callers are expected
+ * to implement the ndo_add_vxlan_port.
*/
void vxlan_get_rx_port(struct net_device *dev)
{
@@ -2029,16 +2030,13 @@
struct net *net = dev_net(dev);
struct vxlan_net *vn = net_generic(net, vxlan_net_id);
sa_family_t sa_family;
- u16 port;
- int i;
-
- if (!dev || !dev->netdev_ops || !dev->netdev_ops->ndo_add_vxlan_port)
- return;
+ __be16 port;
+ unsigned int i;
spin_lock(&vn->sock_lock);
for (i = 0; i < PORT_HASH_SIZE; ++i) {
- hlist_for_each_entry_rcu(vs, vs_head(net, i), hlist) {
- port = htons(inet_sk(vs->sock->sk)->inet_sport);
+ hlist_for_each_entry_rcu(vs, &vn->sock_list[i], hlist) {
+ port = inet_sk(vs->sock->sk)->inet_sport;
sa_family = vs->sock->sk->sk_family;
dev->netdev_ops->ndo_add_vxlan_port(dev, sa_family,
port);
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 041b42a..3de49ac 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -950,14 +950,14 @@
* multiple net devices on single physical port.
*
* void (*ndo_add_vxlan_port)(struct net_device *dev,
- * sa_family_t sa_family, __u16 port);
+ * sa_family_t sa_family, __be16 port);
* Called by vxlan to notiy a driver about the UDP port and socket
* address family that vxlan is listnening to. It is called only when
* a new port starts listening. The operation is protected by the
* vxlan_net->sock_lock.
*
* void (*ndo_del_vxlan_port)(struct net_device *dev,
- * sa_family_t sa_family, __u16 port);
+ * sa_family_t sa_family, __be16 port);
* Called by vxlan to notify the driver about a UDP port and socket
* address family that vxlan is not listening to anymore. The operation
* is protected by the vxlan_net->sock_lock.
@@ -1093,10 +1093,10 @@
struct netdev_phys_port_id *ppid);
void (*ndo_add_vxlan_port)(struct net_device *dev,
sa_family_t sa_family,
- __u16 port);
+ __be16 port);
void (*ndo_del_vxlan_port)(struct net_device *dev,
sa_family_t sa_family,
- __u16 port);
+ __be16 port);
};
/*
