nl80211: Fix AP MLD frequency update on channel switch

mlme_event() calls nl80211_get_link_id_by_freq() to determine the link
to handle reported events. However, in channel switch event it is always
setting freq to the default link that leads to the issue that all other
events that go to mlme_event() will be handled in the default link.

Fix this by setting freq to the correct link specified by the link ID
when processing the event for a completed channel switch.

Signed-off-by: Chenming Huang <quic_chenhuan@quicinc.com>

diff --git a/src/drivers/driver_nl80211_event.c b/src/drivers/driver_nl80211_event.c
index 02c6eae4962783ba48e9d0b000bc283ba5ea08fb..51b27bd5e79da1dc9d17e2d21a0142ce17554d4f 100644 (file)
--- a/src/drivers/driver_nl80211_event.c
+++ b/src/drivers/driver_nl80211_event.c
@@ -1260,14 +1260,23 @@ static void mlme_event_ch_switch(struct wpa_driver_nl80211_data *drv,
        if (cf2)
                data.ch_switch.cf2 = nla_get_u32(cf2);
 
-       if (finished)
-               bss->flink->freq = data.ch_switch.freq;
-
        if (link)
                data.ch_switch.link_id = nla_get_u8(link);
        else
                data.ch_switch.link_id = NL80211_DRV_LINK_ID_NA;
 
+       if (finished) {
+               if (data.ch_switch.link_id != NL80211_DRV_LINK_ID_NA) {
+                       struct i802_link *mld_link;
+
+                       mld_link = nl80211_get_link(bss,
+                                                   data.ch_switch.link_id);
+                       mld_link->freq = data.ch_switch.freq;
+               } else {
+                       bss->flink->freq = data.ch_switch.freq;
+               }
+       }
+
        if (link && is_sta_interface(drv->nlmode)) {
                u8 link_id = data.ch_switch.link_id;