diff options
Diffstat (limited to 'drivers/net/wireless/mwifiex/main.c')
| -rw-r--r-- | drivers/net/wireless/mwifiex/main.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c index cf07279bf602..cf31d36a9fdd 100644 --- a/drivers/net/wireless/mwifiex/main.c +++ b/drivers/net/wireless/mwifiex/main.c @@ -608,6 +608,44 @@ int mwifiex_queue_tx_pkt(struct mwifiex_private *priv, struct sk_buff *skb) return 0; } +static struct sk_buff * +mwifiex_clone_skb_for_tx_status(struct mwifiex_private *priv, + struct sk_buff *skb, u8 flag) +{ + struct sk_buff *orig_skb = skb; + struct mwifiex_txinfo *tx_info, *orig_tx_info; + + skb = skb_clone(skb, GFP_ATOMIC); + if (skb) { + unsigned long flags; + int id; + + spin_lock_irqsave(&priv->ack_status_lock, flags); + id = idr_alloc(&priv->ack_status_frames, orig_skb, + 1, 0xff, GFP_ATOMIC); + spin_unlock_irqrestore(&priv->ack_status_lock, flags); + + if (id >= 0) { + tx_info = MWIFIEX_SKB_TXCB(skb); + tx_info->ack_frame_id = id; + tx_info->flags |= flag; + orig_tx_info = MWIFIEX_SKB_TXCB(orig_skb); + orig_tx_info->ack_frame_id = id; + orig_tx_info->flags |= flag; + } else if (skb_shared(skb)) { + kfree_skb(orig_skb); + } else { + kfree_skb(skb); + skb = orig_skb; + } + } else { + /* couldn't clone -- lose tx status ... */ + skb = orig_skb; + } + + return skb; +} + /* * CFG802.11 network device handler for data transmission. */ @@ -617,6 +655,7 @@ 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; + bool multicast; dev_dbg(priv->adapter->dev, "data: %lu BSS(%d-%d): Data <= kernel\n", jiffies, priv->bss_type, priv->bss_num); @@ -657,6 +696,15 @@ mwifiex_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) tx_info->bss_type = priv->bss_type; tx_info->pkt_len = skb->len; + multicast = is_multicast_ether_addr(skb->data); + + if (unlikely(!multicast && skb->sk && + skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS && + priv->adapter->fw_api_ver == MWIFIEX_FW_V15)) + skb = mwifiex_clone_skb_for_tx_status(priv, + skb, + MWIFIEX_BUF_FLAG_EAPOL_TX_STATUS); + /* Record the current time the packet was queued; used to * determine the amount of time the packet was queued in * the driver before it was sent to the firmware. |