p54usb: fix packet loss with first generation devices
Artur Skawina confirmed that the first generation devices needs the same URB_ZERO_PACKET flag, in oder to finish the pending transfer properly. The second generation has been successfully fixed by "p54usb: fix random traffic stalls (LM87)" (43af18f06d5) Signed-off-by: Christian Lamparter <chunkeey@web.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -229,6 +229,8 @@ static void p54u_tx_3887(struct ieee80211_hw *dev, struct sk_buff *skb)
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usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
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skb->data, skb->len, FREE_AFTER_TX(skb) ?
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p54u_tx_cb : p54u_tx_dummy_cb, skb);
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addr_urb->transfer_flags |= URB_ZERO_PACKET;
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data_urb->transfer_flags |= URB_ZERO_PACKET;
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usb_anchor_urb(addr_urb, &priv->submitted);
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err = usb_submit_urb(addr_urb, GFP_ATOMIC);
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@ -237,7 +239,7 @@ static void p54u_tx_3887(struct ieee80211_hw *dev, struct sk_buff *skb)
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goto out;
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}
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usb_anchor_urb(addr_urb, &priv->submitted);
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usb_anchor_urb(data_urb, &priv->submitted);
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err = usb_submit_urb(data_urb, GFP_ATOMIC);
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if (err)
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usb_unanchor_urb(data_urb);
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@ -332,12 +334,13 @@ static void p54u_tx_net2280(struct ieee80211_hw *dev, struct sk_buff *skb)
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* free what's inside the transfer_buffer after the callback routine
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* has completed.
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*/
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int_urb->transfer_flags |= URB_FREE_BUFFER;
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int_urb->transfer_flags |= URB_FREE_BUFFER | URB_ZERO_PACKET;
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usb_fill_bulk_urb(data_urb, priv->udev,
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usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
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hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ?
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p54u_tx_cb : p54u_tx_dummy_cb, skb);
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data_urb->transfer_flags |= URB_ZERO_PACKET;
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usb_anchor_urb(int_urb, &priv->submitted);
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err = usb_submit_urb(int_urb, GFP_ATOMIC);
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