6.17-stable review patch. If anyone has any objections, please let me know.
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From: Kang Yang kang.yang@oss.qualcomm.com
[ Upstream commit cf412ae7b7124e2b3bfe472616ec24b117b6008a ]
Currently host will add ATH12K_DEFAULT_NOISE_FLOOR to rssi_comb to convert RSSI from dB to dBm.
For WCN7850, this conversion is unnecessary because the RSSI value is already reported in dBm units.
No longer convert for those firmware that already support dBM conversion.
This patch won't affect QCN chips.
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
Fixes: d889913205cf ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices") Signed-off-by: Kang Yang kang.yang@oss.qualcomm.com Reviewed-by: Baochen Qiang baochen.qiang@oss.qualcomm.com Reviewed-by: Vasanthakumar Thiagarajan vasanthakumar.thiagarajan@oss.qualcomm.com Link: https://patch.msgid.link/20250722095934.67-2-kang.yang@oss.qualcomm.com Signed-off-by: Jeff Johnson jeff.johnson@oss.qualcomm.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/wireless/ath/ath12k/dp_mon.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath12k/dp_mon.c b/drivers/net/wireless/ath/ath12k/dp_mon.c index 8189e52ed0071..ec1587d0b917c 100644 --- a/drivers/net/wireless/ath/ath12k/dp_mon.c +++ b/drivers/net/wireless/ath/ath12k/dp_mon.c @@ -2154,8 +2154,12 @@ static void ath12k_dp_mon_update_radiotap(struct ath12k *ar, spin_unlock_bh(&ar->data_lock);
rxs->flag |= RX_FLAG_MACTIME_START; - rxs->signal = ppduinfo->rssi_comb + noise_floor; rxs->nss = ppduinfo->nss + 1; + if (test_bit(WMI_TLV_SERVICE_HW_DB2DBM_CONVERSION_SUPPORT, + ar->ab->wmi_ab.svc_map)) + rxs->signal = ppduinfo->rssi_comb; + else + rxs->signal = ppduinfo->rssi_comb + noise_floor;
if (ppduinfo->userstats[ppduinfo->userid].ampdu_present) { rxs->flag |= RX_FLAG_AMPDU_DETAILS;