iwlwifi: mvm: don't disable power management due to P2P device
Currently power management is supported only when only a single
virtual interface is present. The driver verifies number of created
interfaces and disables power management when multiple interfaces
present. However, this rule does not extend to a P2P device that is
handled differently in the firmware. If a P2P device is added power
management can remain enabled.
Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 9baa3d5..c0043fc 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -502,11 +502,15 @@
/*
* TODO: remove this temporary code.
* Currently MVM FW supports power management only on single MAC.
- * Iterate and disable PM on all active interfaces.
+ * If new interface added, disable PM on existing interface.
+ * P2P device is a special case, since it is handled by FW similary to
+ * scan. If P2P deviced is added, PM remains enabled on existing
+ * interface.
* Note: the method below does not count the new interface being added
* at this moment.
*/
- mvm->vif_count++;
+ if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
+ mvm->vif_count++;
if (mvm->vif_count > 1) {
IWL_DEBUG_MAC80211(mvm,
"Disable power on existing interfaces\n");
@@ -576,10 +580,11 @@
/*
* TODO: remove this temporary code.
* Currently MVM FW supports power management only on single MAC.
- * Check if only one additional interface remains after rereasing
+ * Check if only one additional interface remains after releasing
* current one. Update power mode on the remaining interface.
*/
- mvm->vif_count--;
+ if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
+ mvm->vif_count--;
IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n",
mvm->vif_count);
if (mvm->vif_count == 1) {
@@ -666,7 +671,7 @@
* Check if only one additional interface remains after removing
* current one. Update power mode on the remaining interface.
*/
- if (mvm->vif_count)
+ if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
mvm->vif_count--;
IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n",
mvm->vif_count);