From cbc5f8151017f45231b75a826f18354a81c287c4 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Sat, 26 Aug 2017 07:52:59 -0700
Subject: [PATCH] kernel/event: netlink_ack() now requires 4 arguments

see https://patchwork.kernel.org/patch/9670181/

event.c:32:4: error: too few arguments to function 'netlink_ack'
|     netlink_ack(skb, nlh, 0);
|     ^~~~~~~~~~~

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 kernel/event.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: iscsitarget-1.4.20.3+svn502/kernel/event.c
===================================================================
--- iscsitarget-1.4.20.3+svn502.orig/kernel/event.c
+++ iscsitarget-1.4.20.3+svn502/kernel/event.c
@@ -6,6 +6,7 @@
  * Some functions are based on audit code.
  */
 
+#include <linux/version.h>
 #include <linux/module.h>
 #include <net/tcp.h>
 #include "iet_u.h"
@@ -29,7 +30,11 @@ static void event_recv_skb(struct sk_buf
 		ietd_pid = NETLINK_CB(skb).portid;
 		WARN_ON(ietd_pid == 0);
 		if (nlh->nlmsg_flags & NLM_F_ACK)
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 12, 0)
+			netlink_ack(skb, nlh, 0, NULL);
+#else
 			netlink_ack(skb, nlh, 0);
+#endif
 		skb_pull(skb, rlen);
 	}
 }