Messages in this thread | | | Date | Mon, 21 Apr 2014 10:25:18 +0530 | Subject | Re: [PATCH] Kbuild, lto: Avoid reported warning with strtoul | From | Viresh Kumar <> |
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On 18 April 2014 10:05, Andi Kleen <andi@firstfloor.org> wrote: > From: Andi Kleen <ak@linux.intel.com> > > Apparently someone's C library declares strtoul with warn_unused_result. > Cast to void to avoid the warning. Error handling is not useful here.
I just did a x86_64 compilation without a CROSS_COMPILE= option (My .config also had a empty string) and so gcc must be used for it?
$ gcc --version gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3 Copyright (C) 2011 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> Cc: Viresh Kumar <viresh.kumar@linaro.org> > Signed-off-by: Andi Kleen <ak@linux.intel.com> > --- > scripts/mod/modpost.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c > index 0663556..b9cf439 100644 > --- 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] -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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