On Tue, Aug 25, 2015 at 08:22:03PM -0700, David Miller wrote: > From: Ken-ichirou MATSUZAWA <chama...@gmail.com> > > I don't know the intension of setting VALID status in the skb > > destructor. But I think it need to be set UNUSED status in case of > > I think the idea is to have the user process this "zero length" frame > and advance the status itself. > > I think it is probably racy and problematic to have the kernel set a > frame's state to UNUSED. It is not a valid state transition for the > kernel side of RX ring processing. > > Only the user can safely release ring entries back to the kernel.
I will just update the frame status to UNUSED and advance ring position in user space in case of nm_len == 0. Thank you. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
