From 7d830a198689bd33057923e0370147d43241c7f0 Mon Sep 17 00:00:00 2001 From: David Spinadel Date: Tue, 17 Mar 2015 19:58:38 +0200 Subject: [PATCH] mac80211: stop scan before connection Stop scan before authentication or association to make sure that nothing interferes with connection flow. Currently mac80211 defers RX auth and assoc packets (among other ones) until after the scan is complete, so auth during scan is likely to fail if scan took too much time. Signed-off-by: David Spinadel Reviewed-by: Luciano Coelho Signed-off-by: Johannes Berg --- net/mac80211/mlme.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 22b125913661..4a01a836f870 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -4439,6 +4439,10 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, } else WARN_ON_ONCE(!ether_addr_equal(ifmgd->bssid, cbss->bssid)); + /* Cancel scan to ensure that nothing interferes with connection */ + if (local->scanning) + ieee80211_scan_cancel(local); + return 0; } -- 2.20.1