Revert "mwifiex: Use the proper interfaces"

This reverts commit a82fc3b4a2bceb7c6587249cb690342eb5065979.

Thomas corrected me on that I misunderstood Johannes' comment
for net_timedelta() and the ktime_get_real() usage inside
__net_timestamp().

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: John W. Linville <linville@tuxdriver.com>
Signed-off-by: NBing Zhao <bzhao@marvell.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/mwifiex/cfg80211.c

@@ -121,6 +121,7 @@ mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 	u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 	u16 pkt_len;
 	u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
+	struct timeval tv;
 
 	pkt_len = len + ETH_ALEN;
 
@@ -142,7 +143,8 @@ mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 	       len - sizeof(struct ieee80211_hdr_3addr));
 
 	skb->priority = LOW_PRIO_TID;
-	__net_timestamp(skb);
+	do_gettimeofday(&tv);
+	skb->tstamp = timeval_to_ktime(tv);
 
 	return 0;
 }

drivers/net/wireless/mwifiex/main.c

@@ -609,6 +609,7 @@ mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 	struct sk_buff *new_skb;
 	struct mwifiex_txinfo *tx_info;
+	struct timeval tv;
 
 	dev_dbg(priv->adapter->dev, "data: %lu BSS(%d-%d): Data <= kernel\n",
 		jiffies, priv->bss_type, priv->bss_num);
@@ -655,7 +656,8 @@ mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	 * firmware for aggregate delay calculation for stats and
 	 * MSDU lifetime expiry.
 	 */
-	__net_timestamp(skb);
+	do_gettimeofday(&tv);
+	skb->tstamp = timeval_to_ktime(tv);
 
 	mwifiex_queue_tx_pkt(priv, skb);
 

drivers/net/wireless/mwifiex/tdls.c

@@ -530,6 +530,7 @@ int mwifiex_send_tdls_data_frame(struct mwifiex_private *priv, const u8 *peer,
 {
 	struct sk_buff *skb;
 	struct mwifiex_txinfo *tx_info;
+	struct timeval tv;
 	int ret;
 	u16 skb_len;
 
@@ -607,7 +608,8 @@ int mwifiex_send_tdls_data_frame(struct mwifiex_private *priv, const u8 *peer,
 	tx_info->bss_num = priv->bss_num;
 	tx_info->bss_type = priv->bss_type;
 
-	__net_timestamp(skb);
+	do_gettimeofday(&tv);
+	skb->tstamp = timeval_to_ktime(tv);
 	mwifiex_queue_tx_pkt(priv, skb);
 
 	return 0;
@@ -700,6 +702,7 @@ int mwifiex_send_tdls_action_frame(struct mwifiex_private *priv, const u8 *peer,
 {
 	struct sk_buff *skb;
 	struct mwifiex_txinfo *tx_info;
+	struct timeval tv;
 	u8 *pos;
 	u32 pkt_type, tx_control;
 	u16 pkt_len, skb_len;
@@ -764,7 +767,8 @@ int mwifiex_send_tdls_action_frame(struct mwifiex_private *priv, const u8 *peer,
 	pkt_len = skb->len - MWIFIEX_MGMT_FRAME_HEADER_SIZE - sizeof(pkt_len);
 	memcpy(skb->data + MWIFIEX_MGMT_FRAME_HEADER_SIZE, &pkt_len,
 	       sizeof(pkt_len));
-	__net_timestamp(skb);
+	do_gettimeofday(&tv);
+	skb->tstamp = timeval_to_ktime(tv);
 	mwifiex_queue_tx_pkt(priv, skb);
 
 	return 0;

drivers/net/wireless/mwifiex/uap_txrx.c

@@ -96,6 +96,7 @@ static void mwifiex_uap_queue_bridged_pkt(struct mwifiex_private *priv,
 	struct sk_buff *new_skb;
 	struct mwifiex_txinfo *tx_info;
 	int hdr_chop;
+	struct timeval tv;
 	struct ethhdr *p_ethhdr;
 
 	uap_rx_pd = (struct uap_rxpd *)(skb->data);
@@ -191,7 +192,8 @@ static void mwifiex_uap_queue_bridged_pkt(struct mwifiex_private *priv,
 		tx_info->pkt_len = skb->len;
 	}
 
-	__net_timestamp(skb);
+	do_gettimeofday(&tv);
+	skb->tstamp = timeval_to_ktime(tv);
 	mwifiex_wmm_add_buf_txqueue(priv, skb);
 	atomic_inc(&adapter->tx_pending);
 	atomic_inc(&adapter->pending_bridged_pkts);

drivers/net/wireless/mwifiex/wmm.c

@@ -878,8 +878,15 @@ u8
 mwifiex_wmm_compute_drv_pkt_delay(struct mwifiex_private *priv,
 				  const struct sk_buff *skb)
 {
-	u32 queue_delay = ktime_to_ms(ktime_sub(ktime_get(), skb->tstamp));
 	u8 ret_val;
+	struct timeval out_tstamp, in_tstamp;
+	u32 queue_delay;
+
+	do_gettimeofday(&out_tstamp);
+	in_tstamp = ktime_to_timeval(skb->tstamp);
+
+	queue_delay = (out_tstamp.tv_sec - in_tstamp.tv_sec) * 1000;
+	queue_delay += (out_tstamp.tv_usec - in_tstamp.tv_usec) / 1000;
 
 	/*
 	 * Queue delay is passed as a uint8 in units of 2ms (ms shifted