From 73adbb7a785f0fcd7fdf3de5cbcd2a055a6ae12f Mon Sep 17 00:00:00 2001
From: Josh Bleecher Snyder <josh@tailscale.com>
Date: Thu, 20 May 2021 11:02:05 -0700
Subject: [PATCH] wgengine: pass an addressable value to deephash.UpdateHash

This makes deephash more efficient.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
---
 wgengine/userspace.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wgengine/userspace.go b/wgengine/userspace.go
index 0868e87c6..e368ac635 100644
--- a/wgengine/userspace.go
+++ b/wgengine/userspace.go
@@ -633,7 +633,7 @@ func (e *userspaceEngine) maybeReconfigWireguardLocked(discoChanged map[key.Publ
 		}
 	}
 
-	if !deephash.UpdateHash(&e.lastEngineSigTrim, min, trimmedDisco, trackDisco, trackIPs) {
+	if !deephash.UpdateHash(&e.lastEngineSigTrim, &min, trimmedDisco, trackDisco, trackIPs) {
 		// No changes
 		return nil
 	}