| From a56c6b0ea29d278bd7ec67e45c298eac8526a055 Mon Sep 17 00:00:00 2001 |
| From: "fancy.liu" <fancy.liu@mediatek.com> |
| Date: Wed, 1 Nov 2023 19:58:05 +0800 |
| Subject: [PATCH 44/54] mtk: hostapd: Fix chan_switch to usable DFS channel |
| fail due to ACS |
| |
| Step and issue: |
| 1. Enable ACS in hostapd config; |
| 2. Bootup and then use hostapd_cli cmd switch channel to a DFS channel; |
| 3. Will do ACS again, and no work on channel specified in step 2. |
| |
| Root cause: |
| When need do DFS-CAC, hostapd will do intf disable, then set the new |
| channel into running config settings, and finally enable intf; |
| In the test case, new DFS channel is set to runnint config settings, but |
| another param "acs" is still 1 (enable), caused the ACS running when |
| intf enabled. |
| |
| Solution: |
| In the hostapd_switch_channel_fallback, need to disable acs if channel |
| is valid. |
| |
| Signed-off-by: fancy.liu <fancy.liu@mediatek.com> |
| --- |
| src/ap/hostapd.c | 3 +++ |
| 1 file changed, 3 insertions(+) |
| |
| diff --git a/src/ap/hostapd.c b/src/ap/hostapd.c |
| index 2b563a572..f01f607f3 100644 |
| --- a/src/ap/hostapd.c |
| +++ b/src/ap/hostapd.c |
| @@ -4121,6 +4121,9 @@ hostapd_switch_channel_fallback(struct hostapd_iface *iface, |
| |
| iface->freq = freq_params->freq; |
| iface->conf->channel = freq_params->channel; |
| + if (iface->conf->channel != 0) /* If channel not zero, will disable acs. */ |
| + iface->conf->acs = 0; |
| + |
| iface->conf->secondary_channel = freq_params->sec_channel_offset; |
| hostapd_set_oper_centr_freq_seg0_idx(iface->conf, seg0_idx); |
| hostapd_set_oper_centr_freq_seg1_idx(iface->conf, seg1_idx); |
| -- |
| 2.18.0 |
| |