From: Ping-Ke Shih <pkshih@realtek.com>
Date: Sun, 2 Jul 2017 18:12:30 +0000 (-0500)
Subject: rtlwifi: Fill in_4way field by driver
X-Git-Tag: v4.14-rc1~130^2~356^2~40
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=11f35c9504669c9c3ff8108c3993a46197edddd3;p=platform%2Fkernel%2Flinux-rpi.git

rtlwifi: Fill in_4way field by driver

Because it isn't always correct to use EAPOL to check 4-way,
we add a timer to handle exception.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---

diff --git a/drivers/net/wireless/realtek/rtlwifi/base.c b/drivers/net/wireless/realtek/rtlwifi/base.c
index 208f562..1231ca5 100644
--- a/drivers/net/wireless/realtek/rtlwifi/base.c
+++ b/drivers/net/wireless/realtek/rtlwifi/base.c
@@ -1408,6 +1408,11 @@ u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx,
 
 		return true;
 	} else if (ETH_P_PAE == ether_type) {
+		/* EAPOL is seens as in-4way */
+		rtlpriv->btcoexist.btc_info.in_4way = true;
+		rtlpriv->btcoexist.btc_info.in_4way_ts = jiffies;
+	rtlpriv->btcoexist.btc_info.in_4way_ts = jiffies;
+
 		RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
 			 "802.1X %s EAPOL pkt!!\n", (is_tx) ? "Tx" : "Rx");
 
@@ -1959,6 +1964,12 @@ label_lps_done:
 	if (rtlpriv->cfg->ops->get_btc_status())
 		rtlpriv->btcoexist.btc_ops->btc_periodical(rtlpriv);
 
+	if (rtlpriv->btcoexist.btc_info.in_4way) {
+		if (time_after(jiffies, rtlpriv->btcoexist.btc_info.in_4way_ts +
+			       msecs_to_jiffies(IN_4WAY_TIMEOUT_TIME)))
+			rtlpriv->btcoexist.btc_info.in_4way = false;
+	}
+
 	rtlpriv->link_info.bcn_rx_inperiod = 0;
 
 	/* <6> scan list */
diff --git a/drivers/net/wireless/realtek/rtlwifi/core.c b/drivers/net/wireless/realtek/rtlwifi/core.c
index b0ad061..c53cbf3 100644
--- a/drivers/net/wireless/realtek/rtlwifi/core.c
+++ b/drivers/net/wireless/realtek/rtlwifi/core.c
@@ -1505,6 +1505,8 @@ static int rtl_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	u8 mac_addr[ETH_ALEN];
 	u8 bcast_addr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
 
+	rtlpriv->btcoexist.btc_info.in_4way = false;
+
 	if (rtlpriv->cfg->mod_params->sw_crypto || rtlpriv->sec.use_sw_sec) {
 		RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 			 "not open hw encryption\n");
diff --git a/drivers/net/wireless/realtek/rtlwifi/wifi.h b/drivers/net/wireless/realtek/rtlwifi/wifi.h
index fb1ebb0..7ec0d50 100644
--- a/drivers/net/wireless/realtek/rtlwifi/wifi.h
+++ b/drivers/net/wireless/realtek/rtlwifi/wifi.h
@@ -2477,6 +2477,8 @@ struct rtl_global_var {
 	spinlock_t glb_list_lock;
 };
 
+#define IN_4WAY_TIMEOUT_TIME	(30 * MSEC_PER_SEC)	/* 30 seconds */
+
 struct rtl_btc_info {
 	u8 bt_type;
 	u8 btcoexist;
@@ -2485,6 +2487,7 @@ struct rtl_btc_info {
 
 	u8 ap_num;
 	bool in_4way;
+	unsigned long in_4way_ts;
 };
 
 struct bt_coexist_info {