recipes-wifi/wpa-supplicant/files/patches-2.10.3/0058-mtk-hostapd-Fix-chan_switch-to-usable-DFS-channel-fa.patch

From 03ace053c9dfcbfafec764a894292180f5587c42 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 058/126] 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 7ebdf4eb0..97bc4808e 100644
--- a/src/ap/hostapd.c
+++ b/src/ap/hostapd.c
@@ -4669,6 +4669,9 @@ 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;
 	if (ieee80211_freq_to_channel_ext(freq_params->freq,
 					  freq_params->sec_channel_offset, bw,
-- 
2.18.0