usb: gadget: f_rndis: reduce NETTX irq caused by free skb header

This patch reduce unecessary NETTX softirq call caused by
free skb header. You will see this softirq comes twice while
there is only one TX packet to be transmitted.

So using dev_kfree_skb() instead of dev_kfree_skb_any() to
avoid this problem.

Cc: David S. Miller <davem@davemloft.net>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Macpaul Lin <macpaul@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c
index c11761ce511302fbc386791937a4fecf8a98cfa0..9a4f49dc6ac4f879cfac9496c49951b21c18fe71 100644 (file)
--- a/drivers/usb/gadget/f_rndis.c
+++ b/drivers/usb/gadget/f_rndis.c
@@ -377,7 +377,7 @@ static struct sk_buff *rndis_add_header(struct gether *port,
        if (skb2)
                rndis_add_hdr(skb2);
 
-       dev_kfree_skb_any(skb);
+       dev_kfree_skb(skb);
        return skb2;
 }