[openwrt/openwrt] mac80211: add support for specifying a per-device scan list

[LEDE Commits]

nbd pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/cba4120768a39c9ff222734dce2ced43b70bd60c

commit cba4120768a39c9ff222734dce2ced43b70bd60c
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Mon Sep 28 15:12:56 2020 +0200

    mac80211: add support for specifying a per-device scan list
    
    This is useful to bring up multiple client mode interfaces on a single
    channel much faster without having to scan through a lot of channels
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh | 2 ++
 package/network/services/hostapd/files/hostapd.sh             | 1 +
 2 files changed, 3 insertions(+)

diff --git a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
index 17095b7205..42144375b4 100644
--- a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
+++ b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
@@ -34,6 +34,7 @@ drv_mac80211_init_device_config() {
 	config_add_boolean noscan ht_coex acs_exclude_dfs
 	config_add_array ht_capab
 	config_add_array channels
+	config_add_array scan_list
 	config_add_boolean \
 		rxldpc \
 		short_gi_80 \
@@ -897,6 +898,7 @@ drv_mac80211_setup() {
 		rxantenna txantenna \
 		frag rts beacon_int:100 htmode
 	json_get_values basic_rate_list basic_rate
+	json_get_values scan_list scan_list
 	json_select ..
 
 	find_phy || {
diff --git a/package/network/services/hostapd/files/hostapd.sh b/package/network/services/hostapd/files/hostapd.sh
index b33e8e1edc..3290358ed2 100644
--- a/package/network/services/hostapd/files/hostapd.sh
+++ b/package/network/services/hostapd/files/hostapd.sh
@@ -896,6 +896,7 @@ wpa_supplicant_prepare_interface() {
 	fi
 	wpa_supplicant_teardown_interface "$ifname"
 	cat > "$_config" <<EOF
+${scan_list:+freq_list=$scan_list}
 $ap_scan
 $country_str
 EOF