From 0ca04f1e01a452db909260a36f2ef1d4625cf21a Mon Sep 17 00:00:00 2001
From: David Anderson <danderson@tailscale.com>
Date: Thu, 1 Apr 2021 23:14:13 -0700
Subject: [PATCH] net/dns: put noop.go back, limit with build tags for
 staticcheck.

Signed-off-by: David Anderson <danderson@tailscale.com>
---
 net/dns/noop.go | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 net/dns/noop.go

diff --git a/net/dns/noop.go b/net/dns/noop.go
new file mode 100644
index 000000000..1cdffefc3
--- /dev/null
+++ b/net/dns/noop.go
@@ -0,0 +1,19 @@
+// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build !linux,!freebsd,!openbsd,!windows
+
+package dns
+
+type noopManager struct{}
+
+// Up implements managerImpl.
+func (m noopManager) Up(Config) error { return nil }
+
+// Down implements managerImpl.
+func (m noopManager) Down() error { return nil }
+
+func newNoopManager(mconfig ManagerConfig) managerImpl {
+	return noopManager{}
+}