ath9k_hw: reduce struct ar5416AniState size

It is kept per-channel, so removing unnecessary (or constant) fields from
it can save quite a bit of memory.

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 2978287..a9218a1 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -152,7 +152,8 @@ static void ath9k_hw_set_ofdm_nil(struct ath_hw *ah, u8 immunityLevel,
        ath_dbg(common, ANI, "**** ofdmlevel %d=>%d, rssi=%d[lo=%d hi=%d]\n",
                aniState->ofdmNoiseImmunityLevel,
                immunityLevel, BEACON_RSSI(ah),
-               aniState->rssiThrLow, aniState->rssiThrHigh);
+               ATH9K_ANI_RSSI_THR_LOW,
+               ATH9K_ANI_RSSI_THR_HIGH);
 
        if (!scan)
                aniState->ofdmNoiseImmunityLevel = immunityLevel;
@@ -173,7 +174,7 @@ static void ath9k_hw_set_ofdm_nil(struct ath_hw *ah, u8 immunityLevel,
 
        weak_sig = entry_ofdm->ofdm_weak_signal_on;
        if (ah->opmode == NL80211_IFTYPE_STATION &&
-           BEACON_RSSI(ah) <= aniState->rssiThrHigh)
+           BEACON_RSSI(ah) <= ATH9K_ANI_RSSI_THR_HIGH)
                weak_sig = true;
 
        if (aniState->ofdmWeakSigDetect != weak_sig)
@@ -216,11 +217,11 @@ static void ath9k_hw_set_cck_nil(struct ath_hw *ah, u_int8_t immunityLevel,
 
        ath_dbg(common, ANI, "**** ccklevel %d=>%d, rssi=%d[lo=%d hi=%d]\n",
                aniState->cckNoiseImmunityLevel, immunityLevel,
-               BEACON_RSSI(ah), aniState->rssiThrLow,
-               aniState->rssiThrHigh);
+               BEACON_RSSI(ah), ATH9K_ANI_RSSI_THR_LOW,
+               ATH9K_ANI_RSSI_THR_HIGH);
 
        if (ah->opmode == NL80211_IFTYPE_STATION &&
-           BEACON_RSSI(ah) <= aniState->rssiThrLow &&
+           BEACON_RSSI(ah) <= ATH9K_ANI_RSSI_THR_LOW &&
            immunityLevel > ATH9K_ANI_CCK_MAX_LEVEL_LOW_RSSI)
                immunityLevel = ATH9K_ANI_CCK_MAX_LEVEL_LOW_RSSI;
 
@@ -514,8 +515,6 @@ void ath9k_hw_ani_init(struct ath_hw *ah)
 
                ani->ofdmsTurn = true;
 
-               ani->rssiThrHigh = ATH9K_ANI_RSSI_THR_HIGH;
-               ani->rssiThrLow = ATH9K_ANI_RSSI_THR_LOW;
                ani->ofdmWeakSigDetect = ATH9K_ANI_USE_OFDM_WEAK_SIG;
                ani->cckNoiseImmunityLevel = ATH9K_ANI_CCK_DEF_LEVEL;
                ani->ofdmNoiseImmunityLevel = ATH9K_ANI_OFDM_DEF_LEVEL;

diff --git a/drivers/net/wireless/ath/ath9k/ani.h b/drivers/net/wireless/ath/ath9k/ani.h
index 385bdba..dddb136 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/ani.h
+++ b/drivers/net/wireless/ath/ath9k/ani.h
@@ -104,7 +104,6 @@ struct ath9k_ani_default {
 };
 
 struct ar5416AniState {
-       struct ath9k_channel *c;
        u8 noiseImmunityLevel;
        u8 ofdmNoiseImmunityLevel;
        u8 cckNoiseImmunityLevel;
@@ -113,15 +112,9 @@ struct ar5416AniState {
        u8 spurImmunityLevel;
        u8 firstepLevel;
        u8 ofdmWeakSigDetect;
-       u8 cckWeakSigThreshold;
        u32 listenTime;
-       int32_t rssiThrLow;
-       int32_t rssiThrHigh;
        u32 ofdmPhyErrCount;
        u32 cckPhyErrCount;
-       int16_t pktRssi[2];
-       int16_t ofdmErrRssi[2];
-       int16_t cckErrRssi[2];
        struct ath9k_ani_default iniDef;
 };