diff --git a/net/wireless/core.h b/net/wireless/core.h
index 63eb1b5fdd04..7f52ef569320 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -76,7 +76,7 @@ struct cfg80211_registered_device {
 	struct cfg80211_scan_request *scan_req; /* protected by RTNL */
 	struct sk_buff *scan_msg;
 	struct list_head sched_scan_req_list;
-	unsigned long suspend_at;
+	time64_t suspend_at;
 	struct work_struct scan_done_wk;
 
 	struct genl_info *cur_cmd_info;
diff --git a/net/wireless/sysfs.c b/net/wireless/sysfs.c
index 570a2b67ca10..6ab32f6a1961 100644
--- a/net/wireless/sysfs.c
+++ b/net/wireless/sysfs.c
@@ -102,7 +102,7 @@ static int wiphy_suspend(struct device *dev)
 	struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
 	int ret = 0;
 
-	rdev->suspend_at = get_seconds();
+	rdev->suspend_at = ktime_get_boottime_seconds();
 
 	rtnl_lock();
 	if (rdev->wiphy.registered) {
@@ -130,7 +130,7 @@ static int wiphy_resume(struct device *dev)
 	int ret = 0;
 
 	/* Age scan results with time spent in suspend */
-	cfg80211_bss_age(rdev, get_seconds() - rdev->suspend_at);
+	cfg80211_bss_age(rdev, ktime_get_boottime_seconds() - rdev->suspend_at);
 
 	rtnl_lock();
 	if (rdev->wiphy.registered && rdev->ops->resume)