Update from upstream with manual merge of Yasunori Goto's

changes to swiotlb.c made in commit 281dd25cdc0d6903929b79183816d151ea626341
since this file has been moved from arch/ia64/lib/swiotlb.c to
lib/swiotlb.c

Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 10 insertions, 11 deletions

diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c
index 8bf312bdea13..b425748f02d7 100644
--- a/net/ipv4/arp.c
+++ b/net/ipv4/arp.c
@@ -241,7 +241,7 @@ static int arp_constructor(struct neighbour *neigh)
         neigh->type = inet_addr_type(addr);
 
         rcu_read_lock();
-        in_dev = rcu_dereference(__in_dev_get(dev));
+        in_dev = __in_dev_get_rcu(dev);
         if (in_dev == NULL) {
                 rcu_read_unlock();
                 return -EINVAL;
@@ -697,12 +697,6 @@ void arp_send(int type, int ptype, u32 dest_ip,
         arp_xmit(skb);
 }
 
-static void parp_redo(struct sk_buff *skb)
-{
-        nf_reset(skb);
-        arp_rcv(skb, skb->dev, NULL, skb->dev);
-}
-
 /*
  *      Process an arp request.
  */
@@ -922,6 +916,11 @@ out:
         return 0;
 }
 
+static void parp_redo(struct sk_buff *skb)
+{
+        arp_process(skb);
+}
+
 
 /*
  *      Receive an arp request from the device layer.
@@ -990,8 +989,8 @@ static int arp_req_set(struct arpreq *r, struct net_device * dev)
                         ipv4_devconf.proxy_arp = 1;
                         return 0;
                 }
-                if (__in_dev_get(dev)) {
-                        __in_dev_get(dev)->cnf.proxy_arp = 1;
+                if (__in_dev_get_rtnl(dev)) {
+                        __in_dev_get_rtnl(dev)->cnf.proxy_arp = 1;
                         return 0;
                 }
                 return -ENXIO;
@@ -1096,8 +1095,8 @@ static int arp_req_delete(struct arpreq *r, struct net_device * dev)
                                 ipv4_devconf.proxy_arp = 0;
                                 return 0;
                         }
-                        if (__in_dev_get(dev)) {
-                                __in_dev_get(dev)->cnf.proxy_arp = 0;
+                        if (__in_dev_get_rtnl(dev)) {
+                                __in_dev_get_rtnl(dev)->cnf.proxy_arp = 0;
                                 return 0;
                         }
                         return -ENXIO;