From 4603b5b2dd180de8f72ca874baa787070a17d325 Mon Sep 17 00:00:00 2001
From: Wade Simmons <wadey@slack-corp.com>
Date: Fri, 26 Mar 2021 15:01:05 -0400
Subject: [PATCH] fix PromoteEvery check (#424)

This check was accidentally typo'd in #396 from `%` to `&`. Restore the
correct functionality here (we want to do the check every "PromoteEvery"
count packets).
---
 hostmap.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hostmap.go b/hostmap.go
index b718ee5..6dc0fec 100644
--- a/hostmap.go
+++ b/hostmap.go
@@ -476,7 +476,7 @@ func (i *HostInfo) TryPromoteBest(preferredRanges []*net.IPNet, ifce *Interface)
 		return
 	}
 
-	if atomic.AddUint32(&i.promoteCounter, 1)&PromoteEvery == 0 {
+	if atomic.AddUint32(&i.promoteCounter, 1)%PromoteEvery == 0 {
 		// return early if we are already on a preferred remote
 		rIP := i.remote.IP
 		for _, l := range preferredRanges {