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mac80211_hwsim: Support boottime in scan results

Message ID 1549062991-28148-1-git-send-email-j@w1.fi
State Accepted
Delegated to: Johannes Berg
Headers show
Series mac80211_hwsim: Support boottime in scan results | expand

Commit Message

Jouni Malinen Feb. 1, 2019, 11:16 p.m. UTC
This makes the age information for cfg80211 scan results more accurate
and fixes issues with wpa_supplicant dropping "old" scan results (e.g.,
"wlan0: Own scan request started a scan in 0.000456 seconds") that
looked like would have been received before a scan started due to the
inaccuracy of the default timing mechanism for calculating the BSS entry
age. This makes hwsim test cases significantly more robust to run.

Signed-off-by: Jouni Malinen <j@w1.fi>
 drivers/net/wireless/mac80211_hwsim.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
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diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 320edca..87be2b1 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -1273,10 +1273,12 @@  static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
 	 * probably doesn't really matter.
 	if (ieee80211_is_beacon(hdr->frame_control) ||
-	    ieee80211_is_probe_resp(hdr->frame_control))
+	    ieee80211_is_probe_resp(hdr->frame_control)) {
+		rx_status.boottime_ns = ktime_get_boot_ns();
 		now = data->abs_bcn_ts;
-	else
+	} else {
 		now = mac80211_hwsim_get_tsf_raw();
+	}
 	/* Copy skb to all enabled radios that are on the current frequency */