ath9k_hw: clean up / fix ANI mode checks related to beacon RSSI

Beacon RSSI is only meaningful in station mode - in ad-hoc mode it
fluctuates, depending on which peer last sent a beacon, and in other
modes it is not set at all.
Fix places in ANI where the beacon RSSI is used to limit their use
to station mode only.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c
index aef8170..4949d8b 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -176,7 +176,7 @@ static void ath9k_hw_ani_ofdm_err_trigger_old(struct ath_hw *ah)
                }
        }
 
-       if (ah->opmode == NL80211_IFTYPE_AP) {
+       if (ah->opmode != NL80211_IFTYPE_STATION) {
                if (aniState->firstepLevel < HAL_FIRST_STEP_MAX) {
                        ath9k_hw_ani_control(ah, ATH9K_ANI_FIRSTEP_LEVEL,
                                             aniState->firstepLevel + 1);
@@ -236,7 +236,7 @@ static void ath9k_hw_ani_cck_err_trigger_old(struct ath_hw *ah)
                        return;
                }
        }
-       if (ah->opmode == NL80211_IFTYPE_AP) {
+       if (ah->opmode != NL80211_IFTYPE_STATION) {
                if (aniState->firstepLevel < HAL_FIRST_STEP_MAX) {
                        ath9k_hw_ani_control(ah, ATH9K_ANI_FIRSTEP_LEVEL,
                                             aniState->firstepLevel + 1);
@@ -335,8 +335,7 @@ static void ath9k_hw_set_cck_nil(struct ath_hw *ah, u_int8_t immunityLevel)
                BEACON_RSSI(ah), aniState->rssiThrLow,
                aniState->rssiThrHigh);
 
-       if ((ah->opmode == NL80211_IFTYPE_STATION ||
-            ah->opmode == NL80211_IFTYPE_ADHOC) &&
+       if (ah->opmode == NL80211_IFTYPE_STATION &&
            BEACON_RSSI(ah) <= aniState->rssiThrLow &&
            immunityLevel > ATH9K_ANI_CCK_MAX_LEVEL_LOW_RSSI)
                immunityLevel = ATH9K_ANI_CCK_MAX_LEVEL_LOW_RSSI;
@@ -390,7 +389,7 @@ static void ath9k_hw_ani_lower_immunity_old(struct ath_hw *ah)
 
        aniState = &ah->curchan->ani;
 
-       if (ah->opmode == NL80211_IFTYPE_AP) {
+       if (ah->opmode != NL80211_IFTYPE_STATION) {
                if (aniState->firstepLevel > 0) {
                        if (ath9k_hw_ani_control(ah, ATH9K_ANI_FIRSTEP_LEVEL,
                                                 aniState->firstepLevel - 1))
@@ -474,8 +473,7 @@ static void ath9k_ani_reset_old(struct ath_hw *ah, bool is_scanning)
 
        aniState = &ah->curchan->ani;
 
-       if (ah->opmode != NL80211_IFTYPE_STATION
-           && ah->opmode != NL80211_IFTYPE_ADHOC) {
+       if (ah->opmode != NL80211_IFTYPE_STATION) {
                ath_dbg(common, ANI, "Reset ANI state opmode %u\n", ah->opmode);
                ah->stats.ast_ani_reset++;