From: Wen Gong <quic_wgong@xxxxxxxxxxx> [ Upstream commit 3bf2537ec2e33310b431b53fd84be8833736c256 ] When scan request on channel 1, it also receive beacon from other channels, and the beacon also indicate to mac80211 and wpa_supplicant, and then the bss info appears in radio measurement report of radio measurement sent from wpa_supplicant, thus lead RRM case fail. This is to drop the beacon and probe response which is not the same channel of scanning. Tested-on: QCA6174 hw3.2 SDIO WLAN.RMH.4.4.1-00049 Signed-off-by: Wen Gong <quic_wgong@xxxxxxxxxxx> Signed-off-by: Kalle Valo <quic_kvalo@xxxxxxxxxxx> Link: https://lore.kernel.org/r/20211208061752.16564-1-quic_wgong@xxxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/net/wireless/ath/ath10k/wmi.c | 27 ++++++++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c index 7c1c2658cb5f8..4733fd7fb169e 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.c +++ b/drivers/net/wireless/ath/ath10k/wmi.c @@ -2611,9 +2611,30 @@ int ath10k_wmi_event_mgmt_rx(struct ath10k *ar, struct sk_buff *skb) ath10k_mac_handle_beacon(ar, skb); if (ieee80211_is_beacon(hdr->frame_control) || - ieee80211_is_probe_resp(hdr->frame_control)) + ieee80211_is_probe_resp(hdr->frame_control)) { + struct ieee80211_mgmt *mgmt = (void *)skb->data; + u8 *ies; + int ies_ch; + status->boottime_ns = ktime_get_boottime_ns(); + if (!ar->scan_channel) + goto drop; + + ies = mgmt->u.beacon.variable; + + ies_ch = cfg80211_get_ies_channel_number(mgmt->u.beacon.variable, + skb_tail_pointer(skb) - ies, + sband->band); + + if (ies_ch > 0 && ies_ch != channel) { + ath10k_dbg(ar, ATH10K_DBG_MGMT, + "channel mismatched ds channel %d scan channel %d\n", + ies_ch, channel); + goto drop; + } + } + ath10k_dbg(ar, ATH10K_DBG_MGMT, "event mgmt rx skb %pK len %d ftype %02x stype %02x\n", skb, skb->len, @@ -2627,6 +2648,10 @@ int ath10k_wmi_event_mgmt_rx(struct ath10k *ar, struct sk_buff *skb) ieee80211_rx_ni(ar->hw, skb); return 0; + +drop: + dev_kfree_skb(skb); + return 0; } static int freq_to_idx(struct ath10k *ar, int freq) -- 2.34.1
