[PATCH] usbnet: Zero padding byte if there is tail room in skb.
Peter Korsgaard <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
Usbnet adds a padding byte if a 0 byte packet would be sent. Zero padding byte if there is tail room in skb. Signed-of-by: Peter Korsgaard <[email protected]> --- drivers/net/usb/usbnet.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) Index: linux-2.6.22-rc6/drivers/net/usb/usbnet.c =================================================================== --- linux-2.6.22-rc6.orig/drivers/net/usb/usbnet.c +++ linux-2.6.22-rc6/drivers/net/usb/usbnet.c @@ -953,11 +953,14 @@ /* don't assume the hardware handles USB_ZERO_PACKET * NOTE: strictly conforming cdc-ether devices should expect * the ZLP here, but ignore the one-byte packet. - * - * FIXME zero that byte, if it doesn't require a new skb. */ - if ((length % dev->maxpacket) == 0) + if ((length % dev->maxpacket) == 0) { urb->transfer_buffer_length++; + if (skb_tailroom(skb)) { + skb->data[skb->len] = 0; + __skb_put(skb, 1); + } + } spin_lock_irqsave (&dev->txq.lock, flags); -- Bye, Peter Korsgaard ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel