nft-qos: simplify ifname retrieval

network_get_device should be enough, and since https://git.openwrt.org/?p=openwrt/openwrt.git;a=commitdiff;h=4b9a67362d70c544b85078b8d5c661f43f7472d9
uci network config interface sections use 'device' instead of 'ifname',
rendering the fallback useless

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

net/nft-qos/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=nft-qos
 PKG_VERSION:=1.0.6
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 PKG_LICENSE:=GPL-2.0
 
 PKG_MAINTAINER:=Rosy Song <rosysong@rosinson.com>

net/nft-qos/files/lib/priority.sh

@@ -67,8 +67,6 @@ qosdef_remove_priority() {
 
 # init traffic priority
 qosdef_init_priority() {
-	local ifname="br-lan"
-
 	[ "$2" = 0 ] || {
 		logger -t nft-qos-priority "validation failed"
 		return 1
@@ -76,16 +74,12 @@ qosdef_init_priority() {
 
 	[ $priority_enable -eq 0 ] && return 1
 
-	case "$priority_netdev" in
-		lan) [ "$(uci_get network.lan.type)" != "bridge" ] && {
-				network_get_device ifname "$priority_netdev" || \
-				ifname="$(uci_get network.lan.ifname)"
-			}
-		;;
-		wan*) network_get_device ifname "$priority_netdev" || \
-			ifname="$(uci_get network.$priority_netdev.ifname)"
-		;;
-	esac
+	local ifname
+	network_get_device ifname "$priority_netdev"
+	[ -n "$ifname" ] || {
+		logger -t nft-qos-priority "unable to get ifname for $priority_netdev"
+		return 1
+	}
 
 	qosdef_appendx "table netdev nft-qos-priority {\n"
 	qosdef_append_chain_priority filter priority $ifname