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From: Guillaume Nault <g.nault@alphalink.fr>
Date: Thu, 19 Nov 2015 12:53:21 +0100
Subject: [PATCH] ppp: remove PPPOX_ZOMBIE socket state

PPPOX_ZOMBIE is never set anymore.

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
@@ -311,7 +311,7 @@ static void pppoe_flush_dev(struct net_d
 			lock_sock(sk);
 
 			if (po->pppoe_dev == dev &&
-			    sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND | PPPOX_ZOMBIE)) {
+			    sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND)) {
 				pppox_unbind_sock(sk);
 				sk->sk_state_change(sk);
 				po->pppoe_dev = NULL;
@@ -779,7 +779,7 @@ static int pppoe_ioctl(struct socket *so
 		struct pppox_sock *relay_po;
 
 		err = -EBUSY;
-		if (sk->sk_state & (PPPOX_BOUND | PPPOX_ZOMBIE | PPPOX_DEAD))
+		if (sk->sk_state & (PPPOX_BOUND | PPPOX_DEAD))
 			break;
 
 		err = -ENOTCONN;
--- a/drivers/net/ppp/pppox.c
+++ b/drivers/net/ppp/pppox.c
@@ -58,7 +58,7 @@ void pppox_unbind_sock(struct sock *sk)
 {
 	/* Clear connection to ppp device, if attached. */
 
-	if (sk->sk_state & (PPPOX_BOUND | PPPOX_CONNECTED | PPPOX_ZOMBIE)) {
+	if (sk->sk_state & (PPPOX_BOUND | PPPOX_CONNECTED)) {
 		ppp_unregister_channel(&pppox_sk(sk)->chan);
 		sk->sk_state = PPPOX_DEAD;
 	}
--- a/include/linux/if_pppox.h
+++ b/include/linux/if_pppox.h
@@ -91,7 +91,6 @@ enum {
     PPPOX_CONNECTED	= 1,  /* connection established ==TCP_ESTABLISHED */
     PPPOX_BOUND		= 2,  /* bound to ppp device */
     PPPOX_RELAY		= 4,  /* forwarding is enabled */
-    PPPOX_ZOMBIE	= 8,  /* dead, but still bound to ppp device */
     PPPOX_DEAD		= 16  /* dead, useless, please clean me up!*/
 };