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authorHari Chandrakanthan <quic_haric@quicinc.com>2023-04-19 17:35:11 +0530
committerJouni Malinen <j@w1.fi>2023-04-25 17:05:52 +0300
commit927dbfb453ed712e4eea05eba44ea67b8a734fda (patch)
tree95152136e8fd162fe20da4e17c9092a1542ee6c2
parent8bc84fceeb41f88a627fcc30f81e81ceca40e3fb (diff)
downloadhostap-927dbfb453ed712e4eea05eba44ea67b8a734fda.tar.gz
Fix 40 MHz channel bringup with ACS on the 6 GHz band
When AP is brought up in HE40/EHT40 with ACS, the AP comes up with 20 MHz bandwidth. It is expected to come up with 40 MHz bandwidth. conf->secondary_channel does not hold the correct value and it leads to choosing 20 MHz in hostapd_set_freq_params(). conf->secondary_channel is filled using the hostapd config he_oper_centr_freq_seg0_idx. When AP is configured to use ACS, the hostapd config he_oper_centr_freq_seg0_idx is not valid as the channel is not known during bring up. So using the config he_oper_centr_freq_seg0_idx to fill the conf->secondary_channel does not work with ACS. Use op_class to determine the bandwidth and based on the bandwidth fill the conf->secondary_channel to address this ACS case. Signed-off-by: Hari Chandrakanthan <quic_haric@quicinc.com>
-rwxr-xr-x[-rw-r--r--]src/ap/hostapd.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/src/ap/hostapd.c b/src/ap/hostapd.c
index a20882794..aaf8d5e3c 100644..100755
--- a/src/ap/hostapd.c
+++ b/src/ap/hostapd.c
@@ -1756,16 +1756,15 @@ static int configured_fixed_chan_to_freq(struct hostapd_iface *iface)
static void hostapd_set_6ghz_sec_chan(struct hostapd_iface *iface)
{
- int bw, seg0;
+ int bw;
if (!is_6ghz_op_class(iface->conf->op_class))
return;
- seg0 = hostapd_get_oper_centr_freq_seg0_idx(iface->conf);
- bw = center_idx_to_bw_6ghz(seg0);
+ bw = op_class_to_bandwidth(iface->conf->op_class);
/* Assign the secondary channel if absent in config for
* bandwidths > 20 MHz */
- if (bw > 0 && !iface->conf->secondary_channel) {
+ if (bw >= 40 && !iface->conf->secondary_channel) {
if (((iface->conf->channel - 1) / 4) % 2)
iface->conf->secondary_channel = -1;
else