[NET] NETNS: Omit sock->sk_net without CONFIG_NET_NS.

[firefly-linux-kernel-4.4.55.git] / net / ipv4 / netfilter / arp_tables.c

diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index a7591ce344d2c18a747c717ded8fa96671e2dcc8..1563f29b5117c83a656c674f4b02ed9a2043a06a 100644 (file)
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -52,7 +52,7 @@ MODULE_DESCRIPTION("arptables core");
 do {                                                           \
        if (!(x))                                               \
                printk("ARP_NF_ASSERT: %s:%s:%u\n",             \
-                      __FUNCTION__, __FILE__, __LINE__);       \
+                      __func__, __FILE__, __LINE__);   \
 } while(0)
 #else
 #define ARP_NF_ASSERT(x)
@@ -233,10 +233,7 @@ unsigned int arpt_do_table(struct sk_buff *skb,
        void *table_base;
        struct xt_table_info *private;
 
-       /* ARP header, plus 2 device addresses, plus 2 IP addresses.  */
-       if (!pskb_may_pull(skb, (sizeof(struct arphdr) +
-                                (2 * skb->dev->addr_len) +
-                                (2 * sizeof(u32)))))
+       if (!pskb_may_pull(skb, arp_hdr_len(skb->dev)))
                return NF_DROP;
 
        indev = in ? in->name : nulldevname;
@@ -1499,11 +1496,11 @@ static int compat_do_arpt_set_ctl(struct sock *sk, int cmd, void __user *user,
 
        switch (cmd) {
        case ARPT_SO_SET_REPLACE:
-               ret = compat_do_replace(sk->sk_net, user, len);
+               ret = compat_do_replace(sock_net(sk), user, len);
                break;
 
        case ARPT_SO_SET_ADD_COUNTERS:
-               ret = do_add_counters(sk->sk_net, user, len, 1);
+               ret = do_add_counters(sock_net(sk), user, len, 1);
                break;
 
        default:
@@ -1647,10 +1644,10 @@ static int compat_do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user,
 
        switch (cmd) {
        case ARPT_SO_GET_INFO:
-               ret = get_info(sk->sk_net, user, len, 1);
+               ret = get_info(sock_net(sk), user, len, 1);
                break;
        case ARPT_SO_GET_ENTRIES:
-               ret = compat_get_entries(sk->sk_net, user, len);
+               ret = compat_get_entries(sock_net(sk), user, len);
                break;
        default:
                ret = do_arpt_get_ctl(sk, cmd, user, len);
@@ -1668,11 +1665,11 @@ static int do_arpt_set_ctl(struct sock *sk, int cmd, void __user *user, unsigned
 
        switch (cmd) {
        case ARPT_SO_SET_REPLACE:
-               ret = do_replace(sk->sk_net, user, len);
+               ret = do_replace(sock_net(sk), user, len);
                break;
 
        case ARPT_SO_SET_ADD_COUNTERS:
-               ret = do_add_counters(sk->sk_net, user, len, 0);
+               ret = do_add_counters(sock_net(sk), user, len, 0);
                break;
 
        default:
@@ -1692,11 +1689,11 @@ static int do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len
 
        switch (cmd) {
        case ARPT_SO_GET_INFO:
-               ret = get_info(sk->sk_net, user, len, 0);
+               ret = get_info(sock_net(sk), user, len, 0);
                break;
 
        case ARPT_SO_GET_ENTRIES:
-               ret = get_entries(sk->sk_net, user, len);
+               ret = get_entries(sock_net(sk), user, len);
                break;
 
        case ARPT_SO_GET_REVISION_TARGET: {