iwlwifi: mvm: ignore unchanged low-latency flag

If the low-latency update is called but there's no change then
ignore the update instead of triggering all the required work.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/utils.c b/drivers/net/wireless/iwlwifi/mvm/utils.c
index c28da90cd347bd5060fb41b4368247638c8fd386..d619851745a19ba6d3bf605555fcdbd5a09f8341 100644 (file)
--- a/drivers/net/wireless/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/iwlwifi/mvm/utils.c
@@ -612,6 +612,9 @@ int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 
        lockdep_assert_held(&mvm->mutex);
 
+       if (mvmvif->low_latency == value)
+               return 0;
+
        mvmvif->low_latency = value;
 
        res = iwl_mvm_update_quotas(mvm, NULL);