Re: [Qemu-devel] [PATCH v4 2/3] libvhost-user: fix -Werror=format= on ppc64

[Gerd Hoffmann]

On Tue, May 14, 2019 at 02:33:41PM +0200, Marc-André Lureau wrote:
> Hi
> 
> On Tue, May 14, 2019 at 2:10 PM Philippe Mathieu-Daudé
> <address@hidden> wrote:
> >
> > Hi Marc-André,
> >
> > On 5/14/19 12:41 PM, Marc-André Lureau wrote:
> > > That should fix the following warning:
> > >
> > > /home/pm215/qemu/contrib/libvhost-user/libvhost-user.c: In function
> > > ‘vu_set_mem_table_exec_postcopy’:
> > > /home/pm215/qemu/contrib/libvhost-user/libvhost-user.c:666:9: error:
> > > format ‘%llx’ expects argument of type ‘long long unsigned int’, but
> > > argument 5 has type ‘__u64’ [-Werror=format=]
> > >          DPRINT("%s: region %d: Registered userfault for %llx + %llx\n",
> > >          ^
> > > /home/pm215/qemu/contrib/libvhost-user/libvhost-user.c:666:9: error:
> > > format ‘%llx’ expects argument of type ‘long long unsigned int’, but
> > > argument 6 has type ‘__u64’ [-Werror=format=]
> > > cc1: all warnings being treated as errors
> > >
> > > Signed-off-by: Marc-André Lureau <address@hidden>
> > > ---
> > >  contrib/libvhost-user/libvhost-user.c | 6 ++++--
> > >  1 file changed, 4 insertions(+), 2 deletions(-)
> > >
> > > diff --git a/contrib/libvhost-user/libvhost-user.c 
> > > b/contrib/libvhost-user/libvhost-user.c
> > > index 40443a3daa..ab85166b15 100644
> > > --- a/contrib/libvhost-user/libvhost-user.c
> > > +++ b/contrib/libvhost-user/libvhost-user.c
> > > @@ -663,8 +663,10 @@ vu_set_mem_table_exec_postcopy(VuDev *dev, 
> > > VhostUserMsg *vmsg)
> > >                       __func__, i);
> > >              return false;
> > >          }
> > > -        DPRINT("%s: region %d: Registered userfault for %llx + %llx\n",
> > > -                __func__, i, reg_struct.range.start, 
> > > reg_struct.range.len);
> > > +        DPRINT("%s: region %d: Registered userfault for %"
> > > +               PRIu64 " + %" PRIu64 "\n", __func__, i,
> >
> > I guess you want PRIx64 in both places here.
> >
> > I'd put the '%' on the next line:
> >
> >            DPRINT("%s: region %d: Registered userfault for "
> >                   "%" PRIx64 " + %" PRIx64 "\n", __func__, i,
> >
> > Using PRIx64:
> > Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
> 
> indeed, thanks
> Gerd, can you change it on commit?

Fixed & queued.

What is the status of the vhost-gpu series btw?
It doesn't apply cleanly (simliar to v3 of this series),
IIRC I've mentioned that a while back ...

cheers,
  Gerd