ath9k_hw: keep calibrated noise floor values per channel

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

1 files changed, 20 insertions, 20 deletions

diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c
index 67ee5d735cc1..6351e76792a6 100644
--- a/drivers/net/wireless/ath/ath9k/calib.c
+++ b/drivers/net/wireless/ath/ath9k/calib.c
@@ -346,34 +346,34 @@ bool ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan)
         struct ieee80211_channel *c = chan->chan;
         struct ath9k_hw_cal_data *caldata = ah->caldata;
 
-        if (!caldata)
-                return false;
-
         chan->channelFlags &= (~CHANNEL_CW_INT);
         if (REG_READ(ah, AR_PHY_AGC_CONTROL) & AR_PHY_AGC_CONTROL_NF) {
                 ath_print(common, ATH_DBG_CALIBRATE,
                           "NF did not complete in calibration window\n");
-                nf = 0;
-                caldata->rawNoiseFloor = nf;
                 return false;
-        } else {
-                ath9k_hw_do_getnf(ah, nfarray);
-                ath9k_hw_nf_sanitize(ah, nfarray);
-                nf = nfarray[0];
-                if (ath9k_hw_get_nf_thresh(ah, c->band, &nfThresh)
-                    && nf > nfThresh) {
-                        ath_print(common, ATH_DBG_CALIBRATE,
-                                  "noise floor failed detected; "
-                                  "detected %d, threshold %d\n",
-                                  nf, nfThresh);
-                        chan->channelFlags |= CHANNEL_CW_INT;
-                }
+        }
+
+        ath9k_hw_do_getnf(ah, nfarray);
+        ath9k_hw_nf_sanitize(ah, nfarray);
+        nf = nfarray[0];
+        if (ath9k_hw_get_nf_thresh(ah, c->band, &nfThresh)
+            && nf > nfThresh) {
+                ath_print(common, ATH_DBG_CALIBRATE,
+                          "noise floor failed detected; "
+                          "detected %d, threshold %d\n",
+                          nf, nfThresh);
+                chan->channelFlags |= CHANNEL_CW_INT;
+        }
+
+        if (!caldata) {
+                chan->noisefloor = nf;
+                return false;
         }
 
         h = caldata->nfCalHist;
         caldata->nfcal_pending = false;
         ath9k_hw_update_nfcal_hist_buffer(ah, caldata, nfarray);
-        caldata->rawNoiseFloor = h[0].privNF;
+        chan->noisefloor = h[0].privNF;
         return true;
 }
 
@@ -401,10 +401,10 @@ void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah,
 
 s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan)
 {
-        if (!ah->caldata || !ah->caldata->rawNoiseFloor)
+        if (!ah->curchan || !ah->curchan->noisefloor)
                 return ath9k_hw_get_default_nf(ah, chan);
 
-        return ah->caldata->rawNoiseFloor;
+        return ah->curchan->noisefloor;
 }
 EXPORT_SYMBOL(ath9k_hw_getchan_noise);