From: Eyal Shapira <eyal@wizery.com>
Date: Mon, 21 Apr 2014 18:49:08 +0000 (+0300)
Subject: iwlwifi: mvm: rs: avoid TPC while in search cycle
X-Git-Tag: v4.14-rc1~7158^2~11^2~7^2~63^2~53
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e6c8d602dc6302a1564617f7596181ac460f2845;p=platform%2Fkernel%2Flinux-rpi.git

iwlwifi: mvm: rs: avoid TPC while in search cycle

TPC is a power optimization which should only be attempted when
we're in the "stay in column" state after we've locked onto an optimal
rate.

Signed-off-by: Eyal Shapira <eyalx.shapira@intel.com>
Reviewed-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---

diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 32ac66b..6216618 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -2185,7 +2185,8 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm,
 		break;
 	case RS_ACTION_STAY:
 		/* No change */
-		update_lq = rs_tpc_perform(mvm, sta, lq_sta, tbl);
+		if (lq_sta->rs_state == RS_STATE_STAY_IN_COLUMN)
+			update_lq = rs_tpc_perform(mvm, sta, lq_sta, tbl);
 		break;
 	default:
 		break;