[PATCH 4 of 5] virtio: avoid modulus operation

Pekka Enberg
2011-11-03T07:51:15Z

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?