virt_wifi: Return micros for BSS TSF values

cfg80211_inform_bss expects to receive a TSF value, but is given the
time since boot in nanoseconds. TSF values are expected to be at
microsecond scale rather than nanosecond scale.

Signed-off-by: A. Cody Schuffelen <schuffelen@google.com>
Link: https://lore.kernel.org/r/20210318200419.1421034-1-schuffelen@google.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/virt_wifi.c b/drivers/net/wireless/virt_wifi.c
index c878097f0ddaf664716fd0570644fa45808f1ca1..1df959532c7d345c38714dec45d20534ffb3ec6f 100644 (file)
--- a/drivers/net/wireless/virt_wifi.c
+++ b/drivers/net/wireless/virt_wifi.c
@@ -12,6 +12,7 @@
 #include <net/cfg80211.h>
 #include <net/rtnetlink.h>
 #include <linux/etherdevice.h>
+#include <linux/math64.h>
 #include <linux/module.h>
 
 static struct wiphy *common_wiphy;
@@ -168,11 +169,11 @@ static void virt_wifi_scan_result(struct work_struct *work)
                             scan_result.work);
        struct wiphy *wiphy = priv_to_wiphy(priv);
        struct cfg80211_scan_info scan_info = { .aborted = false };
+       u64 tsf = div_u64(ktime_get_boottime_ns(), 1000);
 
        informed_bss = cfg80211_inform_bss(wiphy, &channel_5ghz,
                                           CFG80211_BSS_FTYPE_PRESP,
-                                          fake_router_bssid,
-                                          ktime_get_boottime_ns(),
+                                          fake_router_bssid, tsf,
                                           WLAN_CAPABILITY_ESS, 0,
                                           (void *)&ssid, sizeof(ssid),
                                           DBM_TO_MBM(-50), GFP_KERNEL);