usbnet: Fix tx_packets stat for FLAG_MULTI_FRAME drivers

Currently the usbnet core does not update the tx_packets statistic for
drivers with FLAG_MULTI_PACKET and there is no hook in the TX
completion path where they could do this.

cdc_ncm and dependent drivers are bumping tx_packets stat on the
transmit path while asix and sr9800 aren't updating it at all.

Add a packet count in struct skb_data so these drivers can fill it
in, initialise it to 1 for other drivers, and add the packet count
to the tx_packets statistic on completion.

Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Tested-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/asix_common.c b/drivers/net/usb/asix_common.c
index 5c55f11..724a9b5 100644 (file)
--- a/drivers/net/usb/asix_common.c
+++ b/drivers/net/usb/asix_common.c
@@ -188,6 +188,8 @@ struct sk_buff *asix_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
                memcpy(skb_tail_pointer(skb), &padbytes, sizeof(padbytes));
                skb_put(skb, sizeof(padbytes));
        }
+
+       usbnet_set_skb_tx_stats(skb, 1);
        return skb;
 }
 

diff --cc drivers/net/usb/cdc_ncm.c
Simple merge

diff --cc drivers/net/usb/sr9800.c
Simple merge

diff --cc drivers/net/usb/usbnet.c
Simple merge

diff --cc include/linux/usb/usbnet.h
Simple merge