Author: nbd
Date: 2015-12-23 12:40:53 +0100 (Wed, 23 Dec 2015)
New Revision: 47966

Modified:
   
trunk/target/linux/generic/patches-3.18/081-06-ppp-don-t-set-sk_state-to-PPPOX_ZOMBIE-in-pppoe_disc.patch
Log:
kernel: add remaining kernel patch accidentally left out of r47963

Signed-off-by: Felix Fietkau <[email protected]>

Modified: 
trunk/target/linux/generic/patches-3.18/081-06-ppp-don-t-set-sk_state-to-PPPOX_ZOMBIE-in-pppoe_disc.patch
===================================================================
--- 
trunk/target/linux/generic/patches-3.18/081-06-ppp-don-t-set-sk_state-to-PPPOX_ZOMBIE-in-pppoe_disc.patch
   2015-12-23 11:23:19 UTC (rev 47965)
+++ 
trunk/target/linux/generic/patches-3.18/081-06-ppp-don-t-set-sk_state-to-PPPOX_ZOMBIE-in-pppoe_disc.patch
   2015-12-23 11:40:53 UTC (rev 47966)
@@ -0,0 +1,45 @@
+From: Guillaume Nault <[email protected]>
+Date: Thu, 19 Nov 2015 12:52:56 +0100
+Subject: [PATCH] ppp: don't set sk_state to PPPOX_ZOMBIE in pppoe_disc_rcv()
+
+Since 287f3a943fef ("pppoe: Use workqueue to die properly when a PADT
+is received"), pppoe_disc_rcv() disconnects the socket by scheduling
+pppoe_unbind_sock_work(). This is enough to stop socket transmission
+and makes the PPPOX_ZOMBIE state uncessary.
+
+Signed-off-by: Guillaume Nault <[email protected]>
+Signed-off-by: David S. Miller <[email protected]>
+---
+
+--- a/drivers/net/ppp/pppoe.c
++++ b/drivers/net/ppp/pppoe.c
+@@ -500,27 +500,9 @@ static int pppoe_disc_rcv(struct sk_buff
+ 
+       pn = pppoe_pernet(dev_net(dev));
+       po = get_item(pn, ph->sid, eth_hdr(skb)->h_source, dev->ifindex);
+-      if (po) {
+-              struct sock *sk = sk_pppox(po);
+-
+-              bh_lock_sock(sk);
+-
+-              /* If the user has locked the socket, just ignore
+-               * the packet.  With the way two rcv protocols hook into
+-               * one socket family type, we cannot (easily) distinguish
+-               * what kind of SKB it is during backlog rcv.
+-               */
+-              if (sock_owned_by_user(sk) == 0) {
+-                      /* We're no longer connect at the PPPOE layer,
+-                       * and must wait for ppp channel to disconnect us.
+-                       */
+-                      sk->sk_state = PPPOX_ZOMBIE;
+-              }
+-
+-              bh_unlock_sock(sk);
++      if (po)
+               if (!schedule_work(&po->proto.pppoe.padt_work))
+-                      sock_put(sk);
+-      }
++                      sock_put(sk_pppox(po));
+ 
+ abort:
+       kfree_skb(skb);
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