[IPV4] ARP: Alloc acceptance of unsolicited ARP via netdevice sysctl.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 10 insertions, 10 deletions

diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index accdefedfed7..041dadde31af 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -879,16 +879,16 @@ static int arp_process(struct sk_buff *skb)
 
         n = __neigh_lookup(&arp_tbl, &sip, dev, 0);
 
-#ifdef CONFIG_IP_ACCEPT_UNSOLICITED_ARP
-        /* Unsolicited ARP is not accepted by default.
-           It is possible, that this option should be enabled for some
-           devices (strip is candidate)
-         */
-        if (n == NULL &&
-            arp->ar_op == htons(ARPOP_REPLY) &&
-            inet_addr_type(sip) == RTN_UNICAST)
-                n = __neigh_lookup(&arp_tbl, &sip, dev, -1);
-#endif
+        if (ipv4_devconf.arp_accept) {
+                /* Unsolicited ARP is not accepted by default.
+                   It is possible, that this option should be enabled for some
+                   devices (strip is candidate)
+                 */
+                if (n == NULL &&
+                    arp->ar_op == htons(ARPOP_REPLY) &&
+                    inet_addr_type(sip) == RTN_UNICAST)
+                        n = __neigh_lookup(&arp_tbl, &sip, dev, -1);
+        }
 
         if (n) {
                 int state = NUD_REACHABLE;