iproute: Fix regressions introduced in 3.16.0

3.16.0 introduced a regression where vlan and veth devices could not be
created due to a check in the code for existing devices. This applies
the upstream patch which fixes the issue.

Additionally, this corrects the nixos network-interfaces task which now
needs to specify the name parameter when adding links.

pkgs/os-specific/linux/iproute/default.nix

@@ -8,7 +8,10 @@ stdenv.mkDerivation rec {
     sha256 = "0ybv29m88lccpfrh2dgiqash4c3gfvwwpx9kakvnc8c71rn8l2hz";
   };
 
-  patch = [ "vpnc.patch" ];
+  patch = [
+    ./vpnc.patch
+    ./device-checking.patch # Remove after 3.16.0
+  ];
 
   preConfigure =
     ''

pkgs/os-specific/linux/iproute/device-checking.patch

@@ -0,0 +1,32 @@
+From f1b66ff83a0babbe99fef81b3a960d7a4ce8dbc6 Mon Sep 17 00:00:00 2001
+From: vadimk <vadim4j@gmail.com>
+Date: Sat, 30 Aug 2014 15:06:00 +0300
+Subject: ip link: Remove unnecessary device checking
+
+The real checking is performed later in iplink_modify(..) func which
+checks device existence if NLM_F_CREATE flag is set.
+
+Also it fixes the case when impossible to add veth link which was
+caused by 9a02651a87 (ip: check for missing dev arg when doing VF rate)
+because these devices are not exist yet.
+
+Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
+Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
+Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
+
+diff --git a/ip/iplink.c b/ip/iplink.c
+index 1a907d9..ea06871 100644
+--- a/ip/iplink.c
++++ b/ip/iplink.c
+@@ -593,8 +593,6 @@ int iplink_parse(int argc, char **argv, struct iplink_req *req,
+ 				duparg2("dev", *argv);
+ 			*dev = *argv;
+ 			dev_index = ll_name_to_index(*dev);
+-			if (dev_index == 0)
+-				invarg("Unknown device", *argv);
+ 		}
+ 		argc--; argv++;
+ 	}
+-- 
+cgit v0.10.1
+