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

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Message-ID: <20141126151750.61a40fe4.cornelia.huck@de.ibm.com>
Date:	Wed, 26 Nov 2014 15:17:50 +0100
From:	Cornelia Huck <cornelia.huck@...ibm.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	linux-kernel@...r.kernel.org, David Miller <davem@...emloft.net>,
	rusty@....ibm.com, nab@...ux-iscsi.org, pbonzini@...hat.com,
	kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH v4 25/42] vhost: add memory access wrappers

On Wed, 26 Nov 2014 16:05:39 +0200
"Michael S. Tsirkin" <mst@...hat.com> wrote:

> On Wed, Nov 26, 2014 at 02:54:38PM +0100, Cornelia Huck wrote:
> > On Tue, 25 Nov 2014 18:43:10 +0200
> > "Michael S. Tsirkin" <mst@...hat.com> wrote:

> > > @@ -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?
> 
> Well, this is needed here since 1 << 32 is not legal C.
> 
> I can move it - this means patch 28 will have to move earlier
> in series though.

Yes, I think it makes sense to move patch 28 earlier.

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