From 10afb1bd8c3af30b88fa1c09dde91b1e8a8cf27c Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Wed, 23 Dec 2015 11:40:53 +0000
Subject: [PATCH] kernel: add remaining kernel patch accidentally left out of
r47963
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 47966
---
..._state-to-PPPOX_ZOMBIE-in-pppoe_disc.patch | 45 +++++++++++++++++++
1 file changed, 45 insertions(+)
diff --git a/target/linux/generic/patches-3.18/081-06-ppp-don-t-set-sk_state-to-PPPOX_ZOMBIE-in-pppoe_disc.patch b/target/linux/generic/patches-3.18/081-06-ppp-don-t-set-sk_state-to-PPPOX_ZOMBIE-in-pppoe_disc.patch
index e69de29bb2..8d155eba1d 100644
--- a/target/linux/generic/patches-3.18/081-06-ppp-don-t-set-sk_state-to-PPPOX_ZOMBIE-in-pppoe_disc.patch
+++ b/target/linux/generic/patches-3.18/081-06-ppp-don-t-set-sk_state-to-PPPOX_ZOMBIE-in-pppoe_disc.patch
@@ -0,0 +1,45 @@
+From: Guillaume Nault <g.nault@alphalink.fr>
+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 <g.nault@alphalink.fr>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+
+--- 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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