[PATCH 4 of 5] virtio: avoid modulus operation

Rusty Russell
2011-11-03T10:18:17Z

On Thu, 3 Nov 2011 09:51:15 +0200, Pekka Enberg <penberg at kernel.org>
wrote:
> On Thu, Nov 3, 2011 at 9:42 AM, Rusty Russell <rusty at
rustcorp.com.au> wrote:
> > Since we know vq->vring.num is a power of 2, modulus is lazy
(it's asserted
> > in vring_new_virtqueue()).
> >
> > Signed-off-by: Rusty Russell <rusty at rustcorp.com.au>
> > ---
> > ?drivers/virtio/virtio_ring.c | ? 10 ++++++----
> > ?1 file changed, 6 insertions(+), 4 deletions(-)
> >
> > diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
> > --- a/arch/x86/lguest/boot.c
> > +++ b/arch/x86/lguest/boot.c
> > @@ -1420,7 +1420,7 @@ __init void lguest_init(void)
> > ? ? ? ?add_preferred_console("hvc", 0, NULL);
> >
> > ? ? ? ?/* Register our very early console. */
> > - ? ? ? virtio_cons_early_init(early_put_chars);
> > +// ? ? virtio_cons_early_init(early_put_chars);
>
> What's this hunk here?

Ugly workaround for console until hvc_console breakage gets reverted.

Left in by mistake :)

Thanks,
Rusty.