wifi: cfg80211: update the time stamps in hidden ssid

In hidden SSID we have separate BSS entries for the beacon and for the
probe response(s).
The BSS entry time stamps represent the age of the BSS;
when was the last time we heard the BSS.
When we receive a beacon of a hidden SSID it means that we heard that
BSS, so it makes sense to indicate that in the probe response entries.
Do that.

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250907115135.712745e498c0.I38186abf5d20dec6f6f2d42d2e1cdb50c6bfea25@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index a8339ed52404c6ba10fff58e6e4c59538ce5a480..52a3d32c16fe358decd67e84ac6cafe394eebda4 100644 (file)
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -1816,6 +1816,9 @@ static void cfg80211_update_hidden_bsses(struct cfg80211_internal_bss *known,
                WARN_ON(ies != old_ies);
 
                rcu_assign_pointer(bss->pub.beacon_ies, new_ies);
+
+               bss->ts = known->ts;
+               bss->pub.ts_boottime = known->pub.ts_boottime;
        }
 }
 
@@ -1882,6 +1885,10 @@ cfg80211_update_known_bss(struct cfg80211_registered_device *rdev,
 {
        lockdep_assert_held(&rdev->bss_lock);
 
+       /* Update time stamps */
+       known->ts = new->ts;
+       known->pub.ts_boottime = new->pub.ts_boottime;
+
        /* Update IEs */
        if (rcu_access_pointer(new->pub.proberesp_ies)) {
                const struct cfg80211_bss_ies *old;
@@ -1944,8 +1951,6 @@ cfg80211_update_known_bss(struct cfg80211_registered_device *rdev,
        if (signal_valid)
                known->pub.signal = new->pub.signal;
        known->pub.capability = new->pub.capability;
-       known->ts = new->ts;
-       known->pub.ts_boottime = new->pub.ts_boottime;
        known->parent_tsf = new->parent_tsf;
        known->pub.chains = new->pub.chains;
        memcpy(known->pub.chain_signal, new->pub.chain_signal,