netpoll: prepare for ipv6

This patch adjusts some struct and functions, to prepare
for supporting IPv6.

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 11 insertions, 2 deletions

diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
index 66d5379c305e..f54c3bb6a22b 100644
--- a/include/linux/netpoll.h
+++ b/include/linux/netpoll.h
@@ -12,13 +12,22 @@
 #include <linux/rcupdate.h>
 #include <linux/list.h>
 
+union inet_addr {
+        __u32           all[4];
+        __be32          ip;
+        __be32          ip6[4];
+        struct in_addr  in;
+        struct in6_addr in6;
+};
+
 struct netpoll {
         struct net_device *dev;
         char dev_name[IFNAMSIZ];
         const char *name;
         void (*rx_hook)(struct netpoll *, int, char *, int);
 
-        __be32 local_ip, remote_ip;
+        union inet_addr local_ip, remote_ip;
+        bool ipv6;
         u16 local_port, remote_port;
         u8 remote_mac[ETH_ALEN];
 
@@ -33,7 +42,7 @@ struct netpoll_info {
         spinlock_t rx_lock;
         struct list_head rx_np; /* netpolls that registered an rx_hook */
 
-        struct sk_buff_head arp_tx; /* list of arp requests to reply to */
+        struct sk_buff_head neigh_tx; /* list of neigh requests to reply to */
         struct sk_buff_head txq;
 
         struct delayed_work tx_work;