ath9k: Fix "cc_lock" usage
IRQ save/restore is not required for the cycle counters
since they are accessed only from softirq and process context.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 0d73080..5aaf0f9 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -330,7 +330,6 @@
struct ieee80211_hw *hw = sc->hw;
struct ath9k_channel *hchan;
struct ieee80211_channel *chan = chandef->chan;
- unsigned long flags;
bool offchannel;
int pos = chan->hw_value;
int old_pos = -1;
@@ -348,9 +347,9 @@
chan->center_freq, chandef->width);
/* update survey stats for the old channel before switching */
- spin_lock_irqsave(&common->cc_lock, flags);
+ spin_lock_bh(&common->cc_lock);
ath_update_survey_stats(sc);
- spin_unlock_irqrestore(&common->cc_lock, flags);
+ spin_unlock_bh(&common->cc_lock);
ath9k_cmn_get_channel(hw, ah, chandef);
@@ -1788,13 +1787,12 @@
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ieee80211_supported_band *sband;
struct ieee80211_channel *chan;
- unsigned long flags;
int pos;
if (config_enabled(CONFIG_ATH9K_TX99))
return -EOPNOTSUPP;
- spin_lock_irqsave(&common->cc_lock, flags);
+ spin_lock_bh(&common->cc_lock);
if (idx == 0)
ath_update_survey_stats(sc);
@@ -1808,7 +1806,7 @@
sband = hw->wiphy->bands[IEEE80211_BAND_5GHZ];
if (!sband || idx >= sband->n_channels) {
- spin_unlock_irqrestore(&common->cc_lock, flags);
+ spin_unlock_bh(&common->cc_lock);
return -ENOENT;
}
@@ -1816,7 +1814,7 @@
pos = chan->hw_value;
memcpy(survey, &sc->survey[pos], sizeof(*survey));
survey->channel = chan;
- spin_unlock_irqrestore(&common->cc_lock, flags);
+ spin_unlock_bh(&common->cc_lock);
return 0;
}