mwifiex: correct TX byte count statistics

The skb is modified in sending the TX packet. Save the original
packet length to a variable so that we can get the correct
statistics update.

Signed-off-by: Ujjal Roy <royujjal@gmail.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index d9b7330..4d23647 100644 (file)
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -222,6 +222,7 @@ mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
        tx_info = MWIFIEX_SKB_TXCB(skb);
        tx_info->bss_num = priv->bss_num;
        tx_info->bss_type = priv->bss_type;
+       tx_info->pkt_len = pkt_len;
 
        mwifiex_form_mgmt_frame(skb, buf, len);
        mwifiex_queue_tx_pkt(priv, skb);

diff --git a/drivers/net/wireless/mwifiex/decl.h b/drivers/net/wireless/mwifiex/decl.h
index 5c85d78..3a21bd0 100644 (file)
--- a/drivers/net/wireless/mwifiex/decl.h
+++ b/drivers/net/wireless/mwifiex/decl.h
@@ -130,6 +130,7 @@ struct mwifiex_txinfo {
        u8 flags;
        u8 bss_num;
        u8 bss_type;
+       u32 pkt_len;
 };
 
 enum mwifiex_wmm_ac_e {

diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index 78e8a66..36c79cf 100644 (file)
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -648,6 +648,7 @@ mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
        tx_info = MWIFIEX_SKB_TXCB(skb);
        tx_info->bss_num = priv->bss_num;
        tx_info->bss_type = priv->bss_type;
+       tx_info->pkt_len = skb->len;
 
        /* Record the current time the packet was queued; used to
         * determine the amount of time the packet was queued in

diff --git a/drivers/net/wireless/mwifiex/sta_tx.c b/drivers/net/wireless/mwifiex/sta_tx.c
index 7b581af..354d64c 100644 (file)
--- a/drivers/net/wireless/mwifiex/sta_tx.c
+++ b/drivers/net/wireless/mwifiex/sta_tx.c
@@ -148,6 +148,7 @@ int mwifiex_send_null_packet(struct mwifiex_private *priv, u8 flags)
        tx_info = MWIFIEX_SKB_TXCB(skb);
        tx_info->bss_num = priv->bss_num;
        tx_info->bss_type = priv->bss_type;
+       tx_info->pkt_len = data_len - (sizeof(struct txpd) + INTF_HEADER_LEN);
        skb_reserve(skb, sizeof(struct txpd) + INTF_HEADER_LEN);
        skb_push(skb, sizeof(struct txpd));
 

diff --git a/drivers/net/wireless/mwifiex/txrx.c b/drivers/net/wireless/mwifiex/txrx.c
index 8dd145c..3446da6 100644 (file)
--- a/drivers/net/wireless/mwifiex/txrx.c
+++ b/drivers/net/wireless/mwifiex/txrx.c
@@ -175,7 +175,7 @@ int mwifiex_write_data_complete(struct mwifiex_adapter *adapter,
        mwifiex_set_trans_start(priv->netdev);
        if (!status) {
                priv->stats.tx_packets++;
-               priv->stats.tx_bytes += skb->len;
+               priv->stats.tx_bytes += tx_info->pkt_len;
                if (priv->tx_timeout_cnt)
                        priv->tx_timeout_cnt = 0;
        } else {