linux-kernel - Re: lib/test_bitmap.c:920:2: error: call to __compiletime_assert_372 declared with 'error' attribute: BUILD_BUG_ON failed: !__builtin_constant

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Message-ID: <0e50e878-3944-c57c-1dbf-10d260f05afc@intel.com>
Date:   Mon, 26 Jun 2023 13:57:46 +0200
From:   Alexander Lobakin <aleksander.lobakin@...el.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
CC:     Nick Desaulniers <ndesaulniers@...gle.com>,
        kernel test robot <lkp@...el.com>, <llvm@...ts.linux.dev>,
        <oe-kbuild-all@...ts.linux.dev>, <linux-kernel@...r.kernel.org>,
        Yury Norov <yury.norov@...il.com>
Subject: Re: lib/test_bitmap.c:920:2: error: call to __compiletime_assert_372
 declared with 'error' attribute: BUILD_BUG_ON failed:
 !__builtin_constant_p(res)

From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Date: Mon, 26 Jun 2023 11:32:51 +0300

> On Sun, Jun 25, 2023 at 05:12:36AM +0800, kernel test robot wrote:
>> Hi Alexander,
>>
>> FYI, the error/warning still remains.
> 
> Alexander, do you have anything to present to fix this? Or is your plan to send
> something after v6.5-rc1?

Hi,
I was waiting for an email from Nick (or some further update of the
GitHub issue page) to clarify whether the compiler should be fixed or I
should work around this in the code. If the latter, I could send a fix
this week, so that it could even hit the bitmap pull request.

Thanks,
Olek