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: <57D0349F.1080706@emindsoft.com.cn>
Date:   Wed, 07 Sep 2016 23:39:11 +0800
From:   Chen Gang <chengang@...ndsoft.com.cn>
To:     Fengguang Wu <lkp@...el.com>,
        Andrew Morton <akpm@...ux-foundation.org>
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Subject: Re: [PATCH v2] arch: all: include: asm: bitops: Use bool instead
 of int for all bit test functions


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.

-- 
Chen Gang (陈刚)

Managing Natural Environments is the Duty of Human Beings.