linux-kernel - Re: [PATCH v2] arch: all: include: asm: bitops: Use bool instead of int for all bit test functions

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Message-ID: <57DCE3C0.8010508@emindsoft.com.cn>
Date:   Sat, 17 Sep 2016 14:33:36 +0800
From:   Chen Gang <chengang@...ndsoft.com.cn>
To:     Fengguang Wu <lkp@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>
CC:     kbuild-all@...org, minchan@...nel.org, vbabka@...e.cz,
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Subject: Re: [PATCH v2] arch: all: include: asm: bitops: Use bool instead
 of int for all bit test functions


If necessary to send patch v3 for it, please let me know (I guess not).

Next, I shall try to find and make another patches for our kernel.

Thanks.

On 9/7/16 23:39, Chen Gang wrote:
> 
> Thank you all for your work. Commonly, I should send patch v3 for it.
> 
> And very sorry for replying too late. During these days I have no
> enough time on it (working, buying house, and catching a cold, but I am
> lucky enough that my father's health is OK).
> 
> Thanks.
> 
> On 9/7/16 09:52, Fengguang Wu wrote:
>> Hi Andrew,
>>
>> On Tue, Sep 06, 2016 at 12:27:32PM -0700, Andrew Morton wrote:
>>> On Sun, 4 Sep 2016 08:27:36 +0800 kbuild test robot <lkp@...el.com> wrote:
>>>
>>>> [auto build test ERROR on linus/master]
>>>> [also build test ERROR on v4.8-rc4 next-20160825]
>>>> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
>>>> [Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on]
>>>> [Check https://git-scm.com/docs/git-format-patch for more information]
>>>>
>>>> url:    https://github.com/0day-ci/linux/commits/chengang-emindsoft-com-cn/arch-all-include-asm-bitops-Use-bool-instead-of-int-for-all-bit-test-functions/20160828-230301
>>>> config: s390-default_defconfig (attached as .config)
>>>> compiler: s390x-linux-gnu-gcc (Debian 5.4.0-6) 5.4.0 20160609
>>>> 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
>>>>         # save the attached .config to linux build tree
>>>>         make.cross ARCH=s390
>>>>
>>>> All errors (new ones prefixed by >>):
>>>>
>>>>    In file included from include/linux/bitops.h:36:0,
>>>>                     from fs/btrfs/extent_io.c:1:
>>>>>> arch/s390/include/asm/bitops.h:176:15: error: unknown type name 'bool'
>>>>     static inline bool
>>>>                   ^
>>>>    arch/s390/include/asm/bitops.h:187:15: error: unknown type name 'bool'
>>>>     static inline bool
>>>
>>> My s390 cross compiler doesn't like that config.  Can someone test this?
>>
>> Tested-by: Fengguang Wu <fengguang.wu@...el.com>
>>
>> It works fine with Debian's gcc-6-s390x-linux-gnu and crosstool gcc:
>>
>> https://www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.9.0/x86_64-gcc-4.9.0-nolibc_s390x-linux.tar.xz
>>
>>> --- a/arch/s390/include/asm/bitops.h~a
>>> +++ a/arch/s390/include/asm/bitops.h
>>> @@ -40,6 +40,7 @@
>>> #error only <linux/bitops.h> can be included directly
>>> #endif
>>>
>>> +#include <linux/types.h>
>>> #include <linux/typecheck.h>
>>> #include <linux/compiler.h>
>>> #include <asm/barrier.h>
>>
>> Regards,
>> Fengguang
> 

-- 
Chen Gang (陈刚)

Managing Natural Environments is the Duty of Human Beings.