From 35e4237973665c8a1ad4e3f7a7cb87573deaa24a Mon Sep 17 00:00:00 2001 From: Joseph Gasparakis Date: Fri, 13 Sep 2013 07:34:13 -0700 Subject: [PATCH] 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 Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/vxlan.c | 18 ++++++++---------- include/linux/netdevice.h | 8 ++++---- 2 files changed, 12 insertions(+), 14 deletions(-) diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index bf64b4191dc..2400b1beddd 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -564,7 +564,7 @@ static void vxlan_notify_add_rx_port(struct sock *sk) 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 @@ static void vxlan_notify_del_rx_port(struct sock *sk) 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 @@ static struct device_type vxlan_type = { }; /* 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 @@ void vxlan_get_rx_port(struct net_device *dev) 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 041b42a305f..3de49aca451 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -950,14 +950,14 @@ struct netdev_phys_port_id { * 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 net_device_ops { 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); }; /* -- 2.43.2