iwlwifi: mvm: rs: fix TPC action decision algorithm

Decreasing Tx power is allowed only when success ratio is
above the threshold defined in the algorithm. Add this condition.

Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
index 7bb6fd0e4391..986e12ab9dc2 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
@@ -2040,7 +2040,8 @@ static enum tpc_action rs_get_tpc_action(struct iwl_mvm *mvm,
         }
 
         /* try decreasing first if applicable */
-        if (weak != TPC_INVALID) {
+        if (sr >= RS_PERCENT(IWL_MVM_RS_TPC_SR_NO_INCREASE) &&
+            weak != TPC_INVALID) {
                 if (weak_tpt == IWL_INVALID_VALUE &&
                     (strong_tpt == IWL_INVALID_VALUE ||
                      current_tpt >= strong_tpt)) {