From e1d57d4d4349efaa0d0cb4246456d1433b71ce7e Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 9 Jun 2021 14:32:32 +0200
Subject: [PATCH] mac80211: rely on iwinfo for phy->path and path->phy lookups

This avoids inconsistencies from having multiple implementations do the same thing

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 package/kernel/mac80211/Makefile              |  1 -
 .../mac80211/files/lib/netifd/mac80211.sh     | 36 -------------------
 .../files/lib/netifd/wireless/mac80211.sh     |  3 +-
 .../mac80211/files/lib/wifi/mac80211.sh       |  5 ++-
 4 files changed, 3 insertions(+), 42 deletions(-)
 delete mode 100644 package/kernel/mac80211/files/lib/netifd/mac80211.sh

diff --git a/package/kernel/mac80211/Makefile b/package/kernel/mac80211/Makefile
index a8a84f843a..0ade95e35e 100644
--- a/package/kernel/mac80211/Makefile
+++ b/package/kernel/mac80211/Makefile
@@ -549,7 +549,6 @@ endef
 define KernelPackage/cfg80211/install
 	$(INSTALL_DIR) $(1)/lib/wifi $(1)/lib/netifd/wireless
 	$(INSTALL_DATA) ./files/lib/wifi/mac80211.sh $(1)/lib/wifi
-	$(INSTALL_DATA) ./files/lib/netifd/mac80211.sh $(1)/lib/netifd
 	$(INSTALL_BIN) ./files/lib/netifd/wireless/mac80211.sh $(1)/lib/netifd/wireless
 	$(INSTALL_DIR) $(1)/etc/hotplug.d/ieee80211
 	$(INSTALL_DATA) ./files/mac80211.hotplug $(1)/etc/hotplug.d/ieee80211/10-wifi-detect
diff --git a/package/kernel/mac80211/files/lib/netifd/mac80211.sh b/package/kernel/mac80211/files/lib/netifd/mac80211.sh
deleted file mode 100644
index 92e5c0e395..0000000000
--- a/package/kernel/mac80211/files/lib/netifd/mac80211.sh
+++ /dev/null
@@ -1,36 +0,0 @@
-mac80211_phy_to_path() {
-	local phy="$1"
-
-	[ -x /usr/bin/readlink -a -h /sys/class/ieee80211/${phy} ] || return
-
-	local path="$(readlink -f /sys/class/ieee80211/${phy}/device)"
-	[ -n "$path" ] || return
-
-	path="${path##/sys/devices/}"
-	case "$path" in
-		platform*/pci*) path="${path##platform/}";;
-	esac
-
-	local p
-	local seq=""
-	for p in $(ls /sys/class/ieee80211/$phy/device/ieee80211); do
-		[ "$p" = "$phy" ] && {
-			echo "$path${seq:++$seq}"
-			break
-		}
-
-		seq=$((${seq:-0} + 1))
-	done
-}
-
-mac80211_path_to_phy() {
-	local path="$1"
-
-	local p
-	for p in $(ls /sys/class/ieee80211); do
-		local cur="$(mac80211_phy_to_path "$p")"
-		case "$cur" in
-			*$path) echo "$p"; return;;
-		esac
-	done
-}
diff --git a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
index f1ed47802a..c9a0fe542a 100644
--- a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
+++ b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
@@ -1,7 +1,6 @@
 #!/bin/sh
 . /lib/netifd/netifd-wireless.sh
 . /lib/netifd/hostapd.sh
-. /lib/netifd/mac80211.sh
 
 init_wireless_driver "$@"
 
@@ -546,7 +545,7 @@ mac80211_generate_mac() {
 find_phy() {
 	[ -n "$phy" -a -d /sys/class/ieee80211/$phy ] && return 0
 	[ -n "$path" ] && {
-		phy="$(mac80211_path_to_phy "$path")"
+		phy="$(iwinfo nl80211 phyname "path=$path")"
 		[ -n "$phy" ] && return 0
 	}
 	[ -n "$macaddr" ] && {
diff --git a/package/kernel/mac80211/files/lib/wifi/mac80211.sh b/package/kernel/mac80211/files/lib/wifi/mac80211.sh
index 5eb7cc4c61..6aa46b0c74 100644
--- a/package/kernel/mac80211/files/lib/wifi/mac80211.sh
+++ b/package/kernel/mac80211/files/lib/wifi/mac80211.sh
@@ -1,5 +1,4 @@
 #!/bin/sh
-. /lib/netifd/mac80211.sh
 
 append DRIVERS "mac80211"
 
@@ -11,7 +10,7 @@ lookup_phy() {
 	local devpath
 	config_get devpath "$device" path
 	[ -n "$devpath" ] && {
-		phy="$(mac80211_path_to_phy "$devpath")"
+		phy="$(iwinfo nl80211 phyname "path=$devpath")"
 		[ -n "$phy" ] && return
 	}
 
@@ -161,7 +160,7 @@ detect_mac80211() {
 
 		get_band_defaults "$dev"
 
-		path="$(mac80211_phy_to_path "$dev")"
+		path="$(iwinfo nl80211 path "$dev")"
 		if [ -n "$path" ]; then
 			dev_id="set wireless.radio${devidx}.path='$path'"
 		else