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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>
This commit is contained in:
Gregory Greenman 2016-01-27 00:10:15 +02:00 committed by Emmanuel Grumbach
parent 854c570573
commit 6ad6c01fa7
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/intel/iwlwifi/mvm/rs.c
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@ -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)) {