From 09ef9451e5532cc872c2ce3c0e0671845ced4731 Mon Sep 17 00:00:00 2001
From: "Vish (Ishaya) Abrams" <vishvananda@gmail.com>
Date: Mon, 4 Apr 2022 10:24:57 -0500
Subject: [PATCH] Revert "Ignore ENOPROTOOPT error when setting NETLINK_EXT_ACK
 to 0"

This reverts commit a7f10103f94d2b4814dbd397208bf289490af40d.
---
 nl/nl_linux.go | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/nl/nl_linux.go b/nl/nl_linux.go
index 9db1eca..20ea144 100644
--- a/nl/nl_linux.go
+++ b/nl/nl_linux.go
@@ -798,13 +798,7 @@ func (s *NetlinkSocket) SetExtAck(enable bool) error {
 		enableN = 1
 	}
 
-	var err error
-	if err = unix.SetsockoptInt(int(s.fd), unix.SOL_NETLINK, unix.NETLINK_EXT_ACK, enableN); err == unix.ENOPROTOOPT && !enable {
-		// older kernels may not support NETLINK_EXT_ACK
-		return nil
-	}
-
-	return err
+	return unix.SetsockoptInt(int(s.fd), unix.SOL_NETLINK, unix.NETLINK_EXT_ACK, enableN)
 }
 
 func (s *NetlinkSocket) GetPid() (uint32, error) {