From: David Spinadel <david.spinadel@intel.com>
Date: Tue, 13 May 2014 11:29:36 +0000 (+0300)
Subject: iwlwifi: mvm: prevent sched scan while not idle
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b538b8ce76f69f7fa225bc0817bbb361b877ea23;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

iwlwifi: mvm: prevent sched scan while not idle

Prevent sched scan while not idle (including during association or in AP
mode) instead of while associated only.

This fixes my previous commit which was incomplete:

commit bd5e4744a6ca64299b57a2682c720d00a475a734
Author: David Spinadel <david.spinadel@intel.com>
Date:   Thu Apr 24 13:15:29 2014 +0300

    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>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 4b0b8b6571ee..b41dc84e9431 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -1807,7 +1807,7 @@ static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
 
 	mutex_lock(&mvm->mutex);
 
-	if (iwl_mvm_is_associated(mvm)) {
+	if (!iwl_mvm_is_idle(mvm)) {
 		ret = -EBUSY;
 		goto out;
 	}
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 84c75a1b267e..f1ec0986c3c9 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -1004,7 +1004,7 @@ static inline bool iwl_mvm_vif_low_latency(struct iwl_mvm_vif *mvmvif)
 }
 
 /* Assoc status */
-bool iwl_mvm_is_associated(struct iwl_mvm *mvm);
+bool iwl_mvm_is_idle(struct iwl_mvm *mvm);
 
 /* Thermal management and CT-kill */
 void iwl_mvm_tt_tx_backoff(struct iwl_mvm *mvm, u32 backoff);
diff --git a/drivers/net/wireless/iwlwifi/mvm/utils.c b/drivers/net/wireless/iwlwifi/mvm/utils.c
index 6fdbef9696d8..2180902266ae 100644
--- a/drivers/net/wireless/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/iwlwifi/mvm/utils.c
@@ -645,21 +645,21 @@ bool iwl_mvm_low_latency(struct iwl_mvm *mvm)
 	return result;
 }
 
-static void iwl_mvm_assoc_iter(void *_data, u8 *mac, struct ieee80211_vif *vif)
+static void iwl_mvm_idle_iter(void *_data, u8 *mac, struct ieee80211_vif *vif)
 {
-	bool *assoc = _data;
+	bool *idle = _data;
 
-	if (vif->bss_conf.assoc)
-		*assoc = true;
+	if (!vif->bss_conf.idle)
+		*idle = false;
 }
 
-bool iwl_mvm_is_associated(struct iwl_mvm *mvm)
+bool iwl_mvm_is_idle(struct iwl_mvm *mvm)
 {
-	bool assoc = false;
+	bool idle = true;
 
 	ieee80211_iterate_active_interfaces_atomic(
 			mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
-			iwl_mvm_assoc_iter, &assoc);
+			iwl_mvm_idle_iter, &idle);
 
-	return assoc;
+	return idle;
 }