[PATCH v7 12/12] wifi: ath12k: support get_survey mac op for single wiphy

[Rameshkumar Sundaram]

From: Sriram R <quic_srirrama at quicinc.com>

The radio for which the survey info needs to be collected
depends on the channel idx which could be based on the band.
Use the idx to identify the appropriate sband since multiple
bands could be combined for single wiphy case.

Also use the channel idx and sband to identify the corresponding
radio on which the survey results needs to be populated.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Signed-off-by: Sriram R <quic_srirrama at quicinc.com>
Signed-off-by: Rameshkumar Sundaram <quic_ramess at quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson at quicinc.com>
---
 drivers/net/wireless/ath/ath12k/mac.c | 29 ++++++++++++++-------------
 1 file changed, 15 insertions(+), 14 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/mac.c b/drivers/net/wireless/ath/ath12k/mac.c
index 72495136022b..f15dcd75157d 100644
--- a/drivers/net/wireless/ath/ath12k/mac.c
+++ b/drivers/net/wireless/ath/ath12k/mac.c
@@ -7851,21 +7851,13 @@ ath12k_mac_update_bss_chan_survey(struct ath12k *ar,
 static int ath12k_mac_op_get_survey(struct ieee80211_hw *hw, int idx,
 				    struct survey_info *survey)
 {
-	struct ath12k_hw *ah = ath12k_hw_to_ah(hw);
 	struct ath12k *ar;
 	struct ieee80211_supported_band *sband;
 	struct survey_info *ar_survey;
-	int ret = 0;
 
 	if (idx >= ATH12K_NUM_CHANS)
 		return -ENOENT;
 
-	ar = ath12k_ah_to_ar(ah, 0);
-
-	ar_survey = &ar->survey[idx];
-
-	mutex_lock(&ar->conf_mutex);
-
 	sband = hw->wiphy->bands[NL80211_BAND_2GHZ];
 	if (sband && idx >= sband->n_channels) {
 		idx -= sband->n_channels;
@@ -7875,11 +7867,22 @@ static int ath12k_mac_op_get_survey(struct ieee80211_hw *hw, int idx,
 	if (!sband)
 		sband = hw->wiphy->bands[NL80211_BAND_5GHZ];
 
-	if (!sband || idx >= sband->n_channels) {
-		ret = -ENOENT;
-		goto exit;
+	if (!sband || idx >= sband->n_channels)
+		return -ENOENT;
+
+	ar = ath12k_mac_get_ar_by_chan(hw, &sband->channels[idx]);
+	if (!ar) {
+		if (sband->channels[idx].flags & IEEE80211_CHAN_DISABLED) {
+			memset(survey, 0, sizeof(*survey));
+			return 0;
+		}
+		return -ENOENT;
 	}
 
+	ar_survey = &ar->survey[idx];
+
+	mutex_lock(&ar->conf_mutex);
+
 	ath12k_mac_update_bss_chan_survey(ar, &sband->channels[idx]);
 
 	spin_lock_bh(&ar->data_lock);
@@ -7891,10 +7894,8 @@ static int ath12k_mac_op_get_survey(struct ieee80211_hw *hw, int idx,
 	if (ar->rx_channel == survey->channel)
 		survey->filled |= SURVEY_INFO_IN_USE;
 
-exit:
 	mutex_unlock(&ar->conf_mutex);
-
-	return ret;
+	return 0;
 }
 
 static void ath12k_mac_op_sta_statistics(struct ieee80211_hw *hw,
-- 
2.25.1