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authorLuciano Coelho <luciano.coelho@intel.com>2015-05-07 17:21:09 +0300
committerEmmanuel Grumbach <emmanuel.grumbach@intel.com>2015-05-28 13:35:25 +0300
commit262888fcc70d42343dfb137a021d45be05183da6 (patch)
tree4170df57b1f52dffd2a2aba4e6d46b3fe06b8141 /drivers/net/wireless/iwlwifi/mvm/mac80211.c
parent8d14ccd878e52f8d1c60fa2f6f10b5921ee8f4f9 (diff)
iwlwifi: mvm: treat scan races also on UMAC scans
For UMAC, we were not treating a race condition that happens in the scan flows, because it was not using the same state flags. Now that UMAC and LMAC scans use the same state flags, we can also handle the race conditions for UMAC. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/mac80211.c')
-rw-r--r--drivers/net/wireless/iwlwifi/mvm/mac80211.c12
1 files changed, 2 insertions, 10 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index d3af88bcff80..cea2366fc72e 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -2413,11 +2413,7 @@ static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
* cancel scan scan before ieee80211_scan_work() could run.
* To handle that, simply return if the scan is not running.
*/
- /* FIXME: for now, we ignore this race for UMAC scans, since
- * they don't set the scan_status.
- */
- if ((mvm->scan_status & IWL_MVM_SCAN_REGULAR) ||
- (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN))
+ if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
mutex_unlock(&mvm->mutex);
@@ -2767,11 +2763,7 @@ static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
* could run. To handle this, simply return if the scan is
* not running.
*/
- /* FIXME: for now, we ignore this race for UMAC scans, since
- * they don't set the scan_status.
- */
- if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED) &&
- !(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
+ if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
mutex_unlock(&mvm->mutex);
return 0;
}