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ramips: mt7621: add migration script for WLAN PCI paths

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PCI paths of the WLAN devices have changed between kernel 5.10 and 5.15;
migrate config so existing wifi-iface definitions don't break.

This is implemented as a hotplug handler rather than a uci-defaults script
as the migration script must run before the 10-wifi-detect hotplug handler.

based on b452af23a8

migration was forgotten when device trees were adjusted in
688697889c
c77913be5b

fixes #9374

affected devices:
Netgear R6220
Netgear WAC104
Netgear WNDR3700 v5
Zbtlink ZBT-WE1326
Wiflyer WF3526-P
Arcadyan WE420223-99
Beeline Smartbox Flash (Arcadyan WG443223)
MTS WG430223 (Arcadyan WG430223)

Tested-by: Maximilian Baumgartner <aufhaxer@googlemail.com>
Tested-by: Mikhail Zhilkin <csharper2005@gmail.com>
Signed-off-by: Felix Baumann <felix.bau@gmx.de>
This commit is contained in:
Felix Baumann 2023-03-18 06:55:12 +01:00 committed by Hauke Mehrtens
parent 936df715de
commit cbf120c255
1 changed files with 75 additions and 0 deletions
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75
target/linux/ramips/mt7621/base-files/etc/hotplug.d/ieee80211/05-wifi-migrate Normal file
View File

@ -0,0 +1,75 @@
#!/bin/sh
# This must run before 10-wifi-detect
[ "${ACTION}" = "add" ] || return
. /lib/functions.sh
check_radio()
{
local cfg="$1" to="$2"
config_get path "$cfg" path
[ "$path" = "$to" ] && PATH_EXISTS=true
}
do_migrate_radio()
{
local cfg="$1" from="$2" to="$3"
config_get path "$cfg" path
[ "$path" = "$from" ] || return
uci set "wireless.${cfg}.path=${to}"
WIRELESS_CHANGED=true
logger -t wifi-migrate "Updated path of wireless.${cfg} from '${from}' to '${to}'"
}
migrate_radio()
{
local from="$1" to="$2"
config_load wireless
# Check if there is already a section with the target path: In this case, the system
# was already upgraded to a version without this migration script before; better bail out,
# as we can't be sure we don't break more than we fix.
PATH_EXISTS=false
config_foreach check_radio wifi-device "$to"
$PATH_EXISTS && return
config_foreach do_migrate_radio wifi-device "$from" "$to"
}
WIRELESS_CHANGED=false
case "$(board_name)" in
arcadyan,we420223-99|\
beeline,smartbox-flash|\
mts,wg430223)
migrate_radio '1e140000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0' '1e140000.pcie/pci0000:00/0000:00:01.0/0000:01:00.0'
migrate_radio '1e140000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0+1' '1e140000.pcie/pci0000:00/0000:00:01.0/0000:01:00.0+1'
;;
netgear,r6220|\
netgear,wac104|\
netgear,wndr3700-v5)
migrate_radio '1e140000.pcie/pci0000:00/0000:00:01.0/0000:02:00.0' '1e140000.pcie/pci0000:00/0000:00:02.0/0000:02:00.0'
;;
zbtlink,zbt-we1326)
migrate_radio '1e140000.pcie/pci0000:00/0000:00:01.0/0000:02:00.0' '1e140000.pcie/pci0000:00/0000:00:02.0/0000:02:00.0'
migrate_radio '1e140000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0' '1e140000.pcie/pci0000:00/0000:00:01.0/0000:01:00.0'
;;
esac
$WIRELESS_CHANGED && uci commit wireless
exit 0