Re: [PATCH v4 25/42] vhost: add memory access wrappers

From: Cornelia Huck
Date: Wed Nov 26 2014 - 08:54:56 EST


On Tue, 25 Nov 2014 18:43:10 +0200
"Michael S. Tsirkin" <mst@xxxxxxxxxx> wrote:

"These wrappers are needed to handle virtio endianness conversions."

?

> Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
> ---
> drivers/vhost/vhost.h | 33 ++++++++++++++++++++++++++++++++-
> 1 file changed, 32 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
> index 3eda654..b9032e8 100644
> --- a/drivers/vhost/vhost.h
> +++ b/drivers/vhost/vhost.h
> @@ -174,6 +174,37 @@ enum {
>
> static inline int vhost_has_feature(struct vhost_virtqueue *vq, int bit)
> {
> - return vq->acked_features & (1 << bit);
> + return vq->acked_features & (1ULL << bit);

Should this hunk go into patch 28?

> +}

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