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authorStanislaw Gruszka <sgruszka@redhat.com>2010-10-06 11:22:10 +0200
committerJohn W. Linville <linville@tuxdriver.com>2010-10-06 22:30:42 +0200
commit4136c4224ccf1907d309e1cdfaefef9da97dbc5e (patch)
treebe65af6057850d068b7858f5679a00b64fb2e92d /net/mac80211/pm.c
parentmac80211: keep lock when calling __ieee80211_scan_completed() (diff)
downloadlinux-4136c4224ccf1907d309e1cdfaefef9da97dbc5e.tar.xz
linux-4136c4224ccf1907d309e1cdfaefef9da97dbc5e.zip
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 <sgruszka@redhat.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/pm.c')
-rw-r--r--net/mac80211/pm.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index e3e2bce3bb41..e37355193ed1 100644
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -12,8 +12,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw)
struct ieee80211_sub_if_data *sdata;
struct sta_info *sta;
- if (unlikely(test_bit(SCAN_SW_SCANNING, &local->scanning)))
- ieee80211_scan_cancel(local);
+ ieee80211_scan_cancel(local);
ieee80211_stop_queues_by_reason(hw,
IEEE80211_QUEUE_STOP_REASON_SUSPEND);