Re: [PATCH v2 2/2] Quiet uninitialized variable warning.

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On Mon, Jan 09, 2017 at 02:11:02PM +0100, Michal Suchánek wrote:
> On Mon, 09 Jan 2017 10:51:34 +0100
> Pavel Grunt <pgrunt@xxxxxxxxxx> wrote:
> 
> Hello,
> 
> > Hi Michal,
> > 
> > On Fri, 2017-01-06 at 14:25 +0100, Michal Suchanek wrote:
> > > Signed-off-by: Michal Suchanek <msuchanek@xxxxxxx>
> > > ---
> > >  src/vdagentd/vdagentd.c | 1 +
> > >  1 file changed, 1 insertion(+)
> > > 
> > > diff --git a/src/vdagentd/vdagentd.c b/src/vdagentd/vdagentd.c
> > > index 991514e..60a866e 100644
> > > --- a/src/vdagentd/vdagentd.c
> > > +++ b/src/vdagentd/vdagentd.c
> > > @@ -334,6 +334,7 @@ static void do_client_file_xfer(struct
> > > vdagent_virtio_port *vport,
> > >          id = d->id;
> > >          break;
> > >      }
> > > +    default: return; /* quiet uninitialized variable warning */  
> > I would go for 'g_return_if_reached' - it will log a warning, also it
> > should be on a new line. I can do the changes and push if you agree.
> > 
> 
> I use this locally to be able to build with gcc 6. gcc 4.8.5 does not
> detect the issue and gcc 7 should be able to detect that the function
> is called from a switch statement where only the values already tested
> above are allowed. 

For what it's worth, I'm not seeing this warning with gcc6 (gcc (GCC)
6.3.1 20161221 (Red Hat 6.3.1-1))

Christophe

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