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#!/bin/sh
# The pcie-controller device was renamed to pcie in Linux kernel 4.14
# commit 28fbb9c539e2 ("ARM: dts: marvell: fix PCI bus dtc warnings").
# This script migrates the path in the UCI configuration from the old
# name to the new name and also back, when am upgrade or downgrade is
# done. It checks if the name exists before changing the configuration.
# This has to be done before the 10-wifi-detect script from mac80211 is
# executed because this would add the devices again under the new path
# name.
. /lib/functions.sh
PATH_CHANGED=0
rename_wifi_path() {
local path_old=$(uci get wireless.${1}.path)
local path_new=$(echo ${path_old} | sed "${2}")
if [ -e "/sys/devices/platform/${path_new}" ] && [ ${path_old} != ${path_new} ]
then
uci set wireless.${1}.path=${path_new}
PATH_CHANGED=1
fi
}
rename_wifi_path_list() {
# migration from kernel 4.9 to 4.14
rename_wifi_path $1 "s/soc:pcie-controller/soc:pcie/"
# migration from kernel 4.14 to 4.9
rename_wifi_path $1 "s/soc:pcie/soc:pcie-controller/"
}
[ "${ACTION}" = "add" ] && {
[ ! -e /etc/config/wireless ] && return
config_load wireless
config_foreach rename_wifi_path_list wifi-device
[ "$PATH_CHANGED" = "1" ] && uci commit wireless
}
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