wifi: rtl8xxxu: don't parse CFO, if both interfaces are connected in STA mode

If both interfaces are in STATION mode and both are connected to an AP,
there might be conflicting CFO values for the two connections. Ignore
the CFO information in this case.
Signed-off-by: Martin Kaistra <martin.kaistra@linutronix.de>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://msgid.link/20231222101442.626837-9-martin.kaistra@linutronix.de

drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c

@@ -5716,6 +5716,14 @@ static inline bool rtl8xxxu_is_packet_match_bssid(struct rtl8xxxu_priv *priv,
 	       ether_addr_equal(priv->vifs[port_num]->bss_conf.bssid, hdr->addr2);
 }
 
+static inline bool rtl8xxxu_is_sta_sta(struct rtl8xxxu_priv *priv)
+{
+	return (priv->vifs[0] && priv->vifs[0]->cfg.assoc &&
+		priv->vifs[0]->type == NL80211_IFTYPE_STATION) &&
+	       (priv->vifs[1] && priv->vifs[1]->cfg.assoc &&
+		priv->vifs[1]->type == NL80211_IFTYPE_STATION);
+}
+
 void rtl8723au_rx_parse_phystats(struct rtl8xxxu_priv *priv,
 				 struct ieee80211_rx_status *rx_status,
 				 struct rtl8723au_phy_stats *phy_stats,
@@ -5734,6 +5742,7 @@ void rtl8723au_rx_parse_phystats(struct rtl8xxxu_priv *priv,
 		bool parse_cfo = priv->fops->set_crystal_cap &&
 				 !crc_icv_err &&
 				 !ieee80211_is_ctl(hdr->frame_control) &&
+				 !rtl8xxxu_is_sta_sta(priv) &&
 				 (rtl8xxxu_is_packet_match_bssid(priv, hdr, 0) ||
 				  rtl8xxxu_is_packet_match_bssid(priv, hdr, 1));
 
@@ -5772,6 +5781,7 @@ static void jaguar2_rx_parse_phystats_type1(struct rtl8xxxu_priv *priv,
 	bool parse_cfo = priv->fops->set_crystal_cap &&
 			 !crc_icv_err &&
 			 !ieee80211_is_ctl(hdr->frame_control) &&
+			 !rtl8xxxu_is_sta_sta(priv) &&
 			 (rtl8xxxu_is_packet_match_bssid(priv, hdr, 0) ||
 			  rtl8xxxu_is_packet_match_bssid(priv, hdr, 1));
 	u8 pwdb_max = 0;