From 4136c4224ccf1907d309e1cdfaefef9da97dbc5e Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Wed, 6 Oct 2010 11:22:10 +0200 Subject: mac80211: assure we also cancel deferred scan request This is partial revert and fix for commit 85f72bc839705294b32b6c16b491c0422f0a71b3 "mac80211: only cancel software-based scans on suspend" When cfg80211 request the scan and mac80211 perform some management work, we defer the scan request. We do not canceling such requests when calling ieee80211_scan_cancel(), because of SCAN_SW_SCANNING bit check just before the call. So fix that problem. Another problem, which commit 85f72bc839705294b32b6c16b491c0422f0a71b3 tries to solve, is we can not cancel HW scan. Hence patch make ieee80211_scan_cancel() ignore HW scan (see code comments). Keeping local->mtx lock assures that the deferred scan will not become "working" HW scan. Signed-off-by: Stanislaw Gruszka Acked-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/main.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'net/mac80211/main.c') diff --git a/net/mac80211/main.c b/net/mac80211/main.c index e3717092115f..915ecf87e4ac 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -307,8 +307,7 @@ static void ieee80211_restart_work(struct work_struct *work) mutex_unlock(&local->mtx); rtnl_lock(); - if (unlikely(test_bit(SCAN_SW_SCANNING, &local->scanning))) - ieee80211_scan_cancel(local); + ieee80211_scan_cancel(local); ieee80211_reconfig(local); rtnl_unlock(); } -- cgit v1.2.1