On Fri, 2018-09-21 at 09:35 +0200, Björn Töpel wrote:
> > --- a/drivers/net/ethernet/intel/i40e/i40e_xsk.c
> > +++ b/drivers/net/ethernet/intel/i40e/i40e_xsk.c
> > @@ -830,3 +830,33 @@ int i40e_xsk_async_xmit(struct net_device
> > *dev, u32 queue_id)
> >
> > return 0;
> > }
> > +
> > +/**
> > + * i40e_xsk_clean_xdp_ring - Clean the XDP Tx ring on shutdown
> > + * @xdp_ring: XDP Tx ring
> > + **/
> > +void i40e_xsk_clean_tx_ring(struct i40e_ring *tx_ring)
> > +{
> > + u16 ntc = tx_ring->next_to_clean, ntu = tx_ring-
> > >next_to_use;
> > + struct xdp_umem *umem = tx_ring->xsk_umem;
> > + struct i40e_tx_buffer *tx_bi;
> > + u32 xsk_frames = 0;
> > +
> > + while (ntc != ntu) {
> > + tx_bi = &tx_ring->tx_bi[ntc];
> > +
> > + if (tx_bi->xdpf)
> > + i40e_clean_xdp_tx_buffer(tx_ring, tx_bi);
> > + else
> > + xsk_frames++;
> > +
> > + tx_bi->xdpf = NULL;
> > +
> > + ntc++;
> > + if (ntc > tx_ring->count)
>
> This is an off-by-one error, and should be:
> if (ntc == tx_ring->count)
>
> Can you fix it up, or should I respin the patch?I can fix it up.
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