This allows the p2p client to fast associate if the GO is already in the
scan cache without doing a full scan.
Signed-off-by: Matthew Wang <matthewmwang@xxxxxxxxxxxx>
---
wpa_supplicant/p2p_supplicant.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/wpa_supplicant/p2p_supplicant.c b/wpa_supplicant/p2p_supplicant.c
index f6252b1aa..27ab710fe 100644
--- a/wpa_supplicant/p2p_supplicant.c
+++ b/wpa_supplicant/p2p_supplicant.c
@@ -6875,6 +6875,8 @@ static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
int freq, int force_scan)
{
struct wpa_ssid *ssid;
+ int other_iface_found = 0;
+ struct wpa_supplicant *ifs;
wpa_s = wpas_p2p_get_group_iface(wpa_s, addr_allocated, 0);
if (wpa_s == NULL)
@@ -6919,6 +6921,26 @@ static int wpas_start_p2p_client(struct wpa_supplicant *wpa_s,
wpa_s->p2p_go_group_formation_completed = 0;
wpa_s->global->p2p_group_formation = wpa_s;
+ /*
+ * Get latest scan results from driver in case cached scan results from
+ * interfaces on the same wiphy allow us to skip the next scan by fast
+ * associating. Also update the scan time to the most recent scan result
+ * fetch time on the same radio so it reflects the actual time the last
+ * scan result event occurred.
+ */
+ wpa_supplicant_update_scan_results(wpa_s);
+ dl_list_for_each(ifs, &wpa_s->radio->ifaces, struct wpa_supplicant,
+ radio_list) {
+ if (ifs == wpa_s)
+ continue;
+ if (!other_iface_found || os_reltime_before(&wpa_s->last_scan,
+ &ifs->last_scan)) {
+ other_iface_found = 1;
+ wpa_s->last_scan.sec = ifs->last_scan.sec;
+ wpa_s->last_scan.usec = ifs->last_scan.usec;
+ }
+ }
+
eloop_cancel_timeout(wpas_p2p_group_formation_timeout, wpa_s->p2pdev,
NULL);
eloop_register_timeout(P2P_MAX_INITIAL_CONN_WAIT, 0,
--
2.38.0.rc2.412.g84df46c1b4-goog
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