Re: [PATCH v5 1/8] virtio: introduce virtio_is_little_endian() helper

From: Thomas Huth
Date: Thu Apr 23 2015 - 13:26:28 EST


Am Thu, 23 Apr 2015 19:22:15 +0200
schrieb Thomas Huth <thuth@xxxxxxxxxx>:

> Am Thu, 23 Apr 2015 17:26:20 +0200
> schrieb Greg Kurz <gkurz@xxxxxxxxxxxxxxxxxx>:
>
> > Signed-off-by: Greg Kurz <gkurz@xxxxxxxxxxxxxxxxxx>
> > ---
> > include/linux/virtio_config.h | 17 +++++++++++------
> > 1 file changed, 11 insertions(+), 6 deletions(-)
> >
> > diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
> > index ca3ed78..bd1a582 100644
> > --- a/include/linux/virtio_config.h
> > +++ b/include/linux/virtio_config.h
> > @@ -205,35 +205,40 @@ int virtqueue_set_affinity(struct virtqueue *vq, int cpu)
> > return 0;
> > }
> >
> > +static inline bool virtio_is_little_endian(struct virtio_device *vdev)
> > +{
> > + return virtio_has_feature(vdev, VIRTIO_F_VERSION_1);
> > +}
>
> So this function returns false when _not_ using version 1, but running
> on a little endian host + guest? Sounds confusing. Maybe you could name
> it "virtio_is_v1()" or so instead?

Ah, never mind, I should have looked at patch 6 first, then it makes
sense. (maybe you could put a note to the later patch in this patch
description?)

Thomas
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