ath9k_htc: keep calibrated noise floor value for oper channel

The ath9k_hw assumes that caldata is valid only for
oper channel. But with ath9k_htc case, the caldata is
passed for all channels on hw_reset though we are not doing
calibration on that channel. So the oper channel's nf history
got cleared to default due to mismatch in channel flags.
This patch also saves some space.

Signed-off-by: Rajkumar Manoharan <rmanoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h
index 1ce506f231107a22893f9da8aba0faa8dde5e686..c976600ba255e8cac620b31e656796906df5c842 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/htc.h
+++ b/drivers/net/wireless/ath/ath9k/htc.h
@@ -366,7 +366,7 @@ struct ath9k_htc_priv {
        u16 seq_no;
        u32 bmiss_cnt;
 
-       struct ath9k_hw_cal_data caldata[ATH9K_NUM_CHANNELS];
+       struct ath9k_hw_cal_data caldata;
 
        spinlock_t beacon_lock;
 

diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index f4d576bc3ccdbce3bef81d4702a756e9b900a34d..187af5b4440d2eaef14d010186e572c23d6e2b28 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -121,7 +121,7 @@ void ath9k_htc_reset(struct ath9k_htc_priv *priv)
        struct ath_hw *ah = priv->ah;
        struct ath_common *common = ath9k_hw_common(ah);
        struct ieee80211_channel *channel = priv->hw->conf.channel;
-       struct ath9k_hw_cal_data *caldata;
+       struct ath9k_hw_cal_data *caldata = NULL;
        enum htc_phymode mode;
        __be16 htc_mode;
        u8 cmd_rsp;
@@ -139,7 +139,7 @@ void ath9k_htc_reset(struct ath9k_htc_priv *priv)
        WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
        WMI_CMD(WMI_STOP_RECV_CMDID);
 
-       caldata = &priv->caldata[channel->hw_value];
+       caldata = &priv->caldata;
        ret = ath9k_hw_reset(ah, ah->curchan, caldata, false);
        if (ret) {
                ath_err(common,
@@ -202,7 +202,8 @@ static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv,
                channel->center_freq, conf_is_ht(conf), conf_is_ht40(conf),
                fastcc);
 
-       caldata = &priv->caldata[channel->hw_value];
+       if (!fastcc)
+               caldata = &priv->caldata;
        ret = ath9k_hw_reset(ah, hchan, caldata, fastcc);
        if (ret) {
                ath_err(common,