From 47d3db5c30163958c442cbaa86e0d4a3f82a8240 Mon Sep 17 00:00:00 2001
From: "William A. Kennington III" <william@wkennington.com>
Date: Sun, 30 Nov 2014 05:12:49 -0800
Subject: [PATCH] nixos/network: Only check slave interfaces which are
 configured

---
 nixos/modules/tasks/network-interfaces.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nixos/modules/tasks/network-interfaces.nix b/nixos/modules/tasks/network-interfaces.nix
index 63500017da5..29e439860ef 100644
--- a/nixos/modules/tasks/network-interfaces.nix
+++ b/nixos/modules/tasks/network-interfaces.nix
@@ -14,7 +14,7 @@ let
   slaves = concatMap (i: i.interfaces) (attrValues cfg.bonds)
     ++ concatMap (i: i.interfaces) (attrValues cfg.bridges);
 
-  slaveIfs = map (i: cfg.interfaces.${i}) slaves;
+  slaveIfs = map (i: cfg.interfaces.${i}) (filter (i: cfg.interfaces ? i) slaves);
 
   # We must escape interfaces due to the systemd interpretation
   subsystemDevice = interface: