From: Andrew Morton <akpm@linux-foundation.org>
To: kbuild test robot <fengguang.wu@intel.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>,
kbuild-all@01.org,
Linux Memory Management List <linux-mm@kvack.org>
Subject: Re: [linux-next:master 2171/2223] lib/test-string_helpers.c:336:32: note: in expansion of macro 'min'
Date: Thu, 17 Sep 2015 11:34:22 -0700 [thread overview]
Message-ID: <20150917113422.1d67ee7d09bbd87900b9dc29@linux-foundation.org> (raw)
In-Reply-To: <201509171413.HY8sjcvk%fengguang.wu@intel.com>
On Thu, 17 Sep 2015 14:33:15 +0800 kbuild test robot <fengguang.wu@intel.com> wrote:
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> head: 01c8787d7f7ea56c16d94cf7133022189be231ad
> commit: 42c38b1726a7df8aee87c44e5151b0f29ab5ab3b [2171/2223] lib/test-string_helpers.c: add string_get_size() tests
> config: mn10300-allyesconfig (attached as .config)
> reproduce:
> wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> git checkout 42c38b1726a7df8aee87c44e5151b0f29ab5ab3b
> # save the attached .config to linux build tree
> make.cross ARCH=mn10300
>
> All warnings (new ones prefixed by >>):
>
> In file included from lib/test-string_helpers.c:7:0:
> lib/test-string_helpers.c: In function 'test_string_get_size_one':
> include/linux/kernel.h:722:17: warning: comparison of distinct pointer types lacks a cast
> (void) (&_min1 == &_min2); \
> ^
> >> lib/test-string_helpers.c:336:32: note: in expansion of macro 'min'
> if (!strncmp(buf, exp_result, min(sizeof(buf), strlen(exp_result))))
> ^
>
> ...
>
> > 336 if (!strncmp(buf, exp_result, min(sizeof(buf), strlen(exp_result))))
It looks like mn10300 gcc is busted. sizeof and strlen() both return
size_t.
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prev parent reply other threads:[~2015-09-17 18:34 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-17 6:33 [linux-next:master 2171/2223] lib/test-string_helpers.c:336:32: note: in expansion of macro 'min' kbuild test robot
2015-09-17 18:34 ` Andrew Morton [this message]
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