[PATCH 2/3] mac80211: Support dynamic AP mode channel width changes

[Jouni Malinen <jouni@qca.qualcomm.com>]

Implement the new cfg80211 capability to enable mac80211-based drivers
to support for dynamic channel bandwidth changes (e.g., HT 20/40 MHz
changes).

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
---
 net/mac80211/cfg.c |   16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index aaa59d7..1ce407a 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -3949,6 +3949,21 @@ static int ieee80211_set_qos_map(struct wiphy *wiphy,
 	return 0;
 }
 
+static int ieee80211_set_ap_channel(struct wiphy *wiphy,
+				    struct net_device *dev,
+				    struct cfg80211_chan_def *chandef)
+{
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	int ret;
+	u32 changed = 0;
+
+	ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
+	if (ret == 0)
+		ieee80211_bss_info_change_notify(sdata, changed);
+
+	return ret;
+}
+
 const struct cfg80211_ops mac80211_config_ops = {
 	.add_virtual_intf = ieee80211_add_iface,
 	.del_virtual_intf = ieee80211_del_iface,
@@ -4029,4 +4044,5 @@ const struct cfg80211_ops mac80211_config_ops = {
 	.start_radar_detection = ieee80211_start_radar_detection,
 	.channel_switch = ieee80211_channel_switch,
 	.set_qos_map = ieee80211_set_qos_map,
+	.set_ap_channel = ieee80211_set_ap_channel,
 };
-- 
1.7.9.5


-- 
Jouni Malinen                                            PGP id EFC895FA