hw_features: Clean center freq for falling back HT40 channels

Some channels fail to be set, when falling back to 20 MHz, due to
remaining VHT info of center freq. As we are going to 20 MHz, reset the
VHT center frequency segment information as well.

Signed-off-by: Eduardo Abinader <eduardoabinader@gmail.com>

diff --git a/src/ap/hw_features.c b/src/ap/hw_features.c
index d66ff4b179c0321b9fe152f746100c8be24cf3f2..0e0878bee2cbf3130288de3371088224b05f47fb 100644 (file)
--- a/src/ap/hw_features.c
+++ b/src/ap/hw_features.c
@@ -329,6 +329,8 @@ static void ieee80211n_check_scan(struct hostapd_iface *iface)
        res = ieee80211n_allowed_ht40_channel_pair(iface);
        if (!res) {
                iface->conf->secondary_channel = 0;
+               iface->conf->vht_oper_centr_freq_seg0_idx = 0;
+               iface->conf->vht_oper_centr_freq_seg1_idx = 0;
                res = 1;
                wpa_printf(MSG_INFO, "Fallback to 20 MHz");
        }