Re: [PATCH v7 36/46] vhost/net: suppress compiler warning

Michael S. Tsirkin
2014-12-01T13:48:59Z

On Mon, Dec 01, 2014 at 01:37:40PM +0100, Cornelia Huck wrote:
> On Sun, 30 Nov 2014 17:12:13 +0200
> "Michael S. Tsirkin" <mst@redhat.com> wrote:
>
> > len is always initialized since function is called with size > 0.
> >
> > Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> > ---
> > drivers/vhost/net.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
> > index 984242e..54ffbb0 100644
> > --- a/drivers/vhost/net.c
> > +++ b/drivers/vhost/net.c
> > @@ -501,7 +501,7 @@ static int get_rx_bufs(struct vhost_virtqueue *vq,
> > int headcount = 0;
> > unsigned d;
> > int r, nlogs = 0;
> > - u32 len;
> > + u32 uninitialized_var(len);
> >
> > while (datalen > 0 && headcount < quota) {
> > if (unlikely(seg >= UIO_MAXIOV)) {
>
> Want to merge this with the patch introducing the variable and add a
> comment there?

Not really. Warnings in bisect are fine I think.

--
MST