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iwlwifi: mvm: do no sched scan while associated 

Currently the FW doesn't support sched scan while associated,
Prevent it.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
David Spinadel 2014-04-24 13:15:29 +03:00 committed by Emmanuel Grumbach
parent 8e96440e8d
commit bd5e4744a6
3 changed files with 27 additions and 0 deletions
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5
drivers/net/wireless/iwlwifi/mvm/mac80211.c
View File

@ -1807,6 +1807,11 @@ static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
mutex_lock(&mvm->mutex); mutex_lock(&mvm->mutex);
if (iwl_mvm_is_associated(mvm)) {
ret = -EBUSY;
goto out;
}
switch (mvm->scan_status) { switch (mvm->scan_status) {
case IWL_MVM_SCAN_OS: case IWL_MVM_SCAN_OS:
IWL_DEBUG_SCAN(mvm, "Stopping previous scan for sched_scan\n"); IWL_DEBUG_SCAN(mvm, "Stopping previous scan for sched_scan\n");

3
drivers/net/wireless/iwlwifi/mvm/mvm.h
View File

@ -1003,6 +1003,9 @@ static inline bool iwl_mvm_vif_low_latency(struct iwl_mvm_vif *mvmvif)
return mvmvif->low_latency; return mvmvif->low_latency;
} }
/* Assoc status */
bool iwl_mvm_is_associated(struct iwl_mvm *mvm);
/* Thermal management and CT-kill */ /* Thermal management and CT-kill */
void iwl_mvm_tt_tx_backoff(struct iwl_mvm *mvm, u32 backoff); void iwl_mvm_tt_tx_backoff(struct iwl_mvm *mvm, u32 backoff);
void iwl_mvm_tt_handler(struct iwl_mvm *mvm); void iwl_mvm_tt_handler(struct iwl_mvm *mvm);

19
drivers/net/wireless/iwlwifi/mvm/utils.c
View File

@ -644,3 +644,22 @@ bool iwl_mvm_low_latency(struct iwl_mvm *mvm)
return result; return result;
} }
static void iwl_mvm_assoc_iter(void *_data, u8 *mac, struct ieee80211_vif *vif)
{
bool *assoc = _data;
if (vif->bss_conf.assoc)
*assoc = true;
}
bool iwl_mvm_is_associated(struct iwl_mvm *mvm)
{
bool assoc = false;
ieee80211_iterate_active_interfaces_atomic(
mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
iwl_mvm_assoc_iter, &assoc);
return assoc;
}