From 1e9551debacdaa044eeb514f4366beac6e18f6d9 Mon Sep 17 00:00:00 2001 From: Eyal Shapira Date: Mon, 21 Apr 2014 21:33:17 +0300 Subject: [PATCH] iwlwifi: mvm: rs: don't allow TPC when power save is disabled Currently we were checking only if the driver power_scheme is set to CAM. TPC shouldn't be enabled also when disabling powersave on the interface (e.g. iw wlan0 set power_save off) which may occur even if power_scheme wasn't set to CAM. Signed-off-by: Eyal Shapira Reviewed-by: Eliad Peller Signed-off-by: Emmanuel Grumbach --- drivers/net/wireless/iwlwifi/mvm/rs.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c index a7ad532dfd9a..32ac66b5c4a3 100644 --- a/drivers/net/wireless/iwlwifi/mvm/rs.c +++ b/drivers/net/wireless/iwlwifi/mvm/rs.c @@ -1750,16 +1750,21 @@ static void rs_get_adjacent_txp(struct iwl_mvm *mvm, int index, *stronger = TPC_INVALID; } -static bool rs_tpc_allowed(struct iwl_mvm *mvm, struct rs_rate *rate, - enum ieee80211_band band) +static bool rs_tpc_allowed(struct iwl_mvm *mvm, struct ieee80211_vif *vif, + struct rs_rate *rate, enum ieee80211_band band) { int index = rate->index; + bool cam = (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM); + bool sta_ps_disabled = (vif->type == NL80211_IFTYPE_STATION && + !vif->bss_conf.ps); + IWL_DEBUG_RATE(mvm, "cam: %d sta_ps_disabled %d\n", + cam, sta_ps_disabled); /* * allow tpc only if power management is enabled, or bt coex * activity grade allows it and we are on 2.4Ghz. */ - if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM && + if ((cam || sta_ps_disabled) && !iwl_mvm_bt_coex_is_tpc_allowed(mvm, band)) return false; @@ -1876,7 +1881,7 @@ static bool rs_tpc_perform(struct iwl_mvm *mvm, band = chanctx_conf->def.chan->band; rcu_read_unlock(); - if (!rs_tpc_allowed(mvm, rate, band)) { + if (!rs_tpc_allowed(mvm, vif, rate, band)) { IWL_DEBUG_RATE(mvm, "tpc is not allowed. remove txp restrictions"); lq_sta->lq.reduced_tpc = TPC_NO_REDUCTION; -- 2.20.1