On Tue, Oct 17, 2023 at 10:02:05AM +0800, Xuan Zhuo wrote:
> On Mon, 16 Oct 2023 16:44:34 -0700, Jakub Kicinski <kuba@xxxxxxxxxx> wrote:
> > On Mon, 16 Oct 2023 20:00:27 +0800 Xuan Zhuo wrote:
> > > @@ -305,9 +311,15 @@ static inline void virtnet_free_old_xmit(struct virtnet_sq *sq, bool in_napi,
> > >
> > > stats->bytes += xdp_get_frame_len(frame);
> > > xdp_return_frame(frame);
> > > + } else {
> > > + stats->bytes += virtnet_ptr_to_xsk(ptr);
> > > + ++xsknum;
> > > }
> > > stats->packets++;
> > > }
> > > +
> > > + if (xsknum)
> > > + xsk_tx_completed(sq->xsk.pool, xsknum);
> > > }
> >
> > sparse complains:
> >
> > drivers/net/virtio/virtio_net.h:322:41: warning: incorrect type in argument 1 (different address spaces)
> > drivers/net/virtio/virtio_net.h:322:41: expected struct xsk_buff_pool *pool
> > drivers/net/virtio/virtio_net.h:322:41: got struct xsk_buff_pool
> > [noderef] __rcu *pool
> >
> > please build test with W=1 C=1
>
> OK. I will add C=1 to may script.
>
> Thanks.
And I hope we all understand, rcu has to be used properly it's not just
about casting the warning away.
--
MST
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