Re: [PATCH] Kbuild, lto: Avoid reported warning with strtoul

[Andi Kleen <ak@linux.intel.com>]

On Mon, Apr 21, 2014 at 10:25:18AM +0530, Viresh Kumar wrote:
> > --- a/scripts/mod/modpost.c
> > +++ b/scripts/mod/modpost.c
> > @@ -1707,7 +1707,7 @@ static char *remove_dot(char *s)
> >         int n = strcspn(s, ".");
> >
> >         if (n > 0 && s[n] != 0) {
> > -               strtoul(s + n + 1, &end, 10);
> > +               (void)strtoul(s + n + 1, &end, 10);
> 
> I tried this earlier before reporting and it still had the same problem :(
> I tried it again just to cross check and still getting this:
> 
> scripts/mod/modpost.c: In function ‘remove_dot’:
> scripts/mod/modpost.c:1710:3: warning: ignoring return value of
> ‘strtoul’, declared with attribute warn_unused_result
> [-Wunused-result]

Hmm that's odd. I guess could assign it to a dummy variable or use
viro's variant.

-Andi

-- 
ak@linux.intel.com -- Speaking for myself only