linux-kernel - Re: [Patch v2 5/6] x86/mm: Use address directly in split_mem

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Message-ID: <20191207071750.5wxy2o5ozqxwpbix@master>
Date:   Sat, 7 Dec 2019 07:17:50 +0000
From:   Wei Yang <richard.weiyang@...il.com>
To:     kbuild test robot <lkp@...el.com>
Cc:     Wei Yang <richardw.yang@...ux.intel.com>, kbuild-all@...ts.01.org,
        x86@...nel.org, linux-kernel@...r.kernel.org,
        richard.weiyang@...il.com, dave.hansen@...ux.intel.com,
        luto@...nel.org, peterz@...radead.or, tglx@...utronix.de
Subject: Re: [Patch v2 5/6] x86/mm: Use address directly in split_mem_range()

On Sat, Dec 07, 2019 at 11:36:10AM +0800, kbuild test robot wrote:
>Hi Wei,
>
>Thank you for the patch! Yet something to improve:
>
>[auto build test ERROR on tip/x86/mm]
>[also build test ERROR on tip/auto-latest linus/master v5.4 next-20191206]
>[if your patch is applied to the wrong git tree, please drop us a note to help
>improve the system. BTW, we also suggest to use '--base' option to specify the
>base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
>
>url:    https://github.com/0day-ci/linux/commits/Wei-Yang/x86-mm-Remove-second-argument-of-split_mem_range/20191207-061345
>base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 7f264dab5b60343358e788d4c939c166c22ea4a2
>config: i386-tinyconfig (attached as .config)
>compiler: gcc-7 (Debian 7.5.0-1) 7.5.0
>reproduce:
>        # save the attached .config to linux build tree
>        make ARCH=i386 
>
>If you fix the issue, kindly add following tag
>Reported-by: kbuild test robot <lkp@...el.com>
>
>Note: the linux-review/Wei-Yang/x86-mm-Remove-second-argument-of-split_mem_range/20191207-061345 HEAD 7f535395f79354bfa29cca182dd203525bcb4237 builds fine.
>      It only hurts bisectibility.
>
>All errors (new ones prefixed by >>):
>
>   arch/x86/mm/init.c: In function 'save_mr':
>>> arch/x86/mm/init.c:265:6: error: 'start_pfn' undeclared (first use in this function); did you mean 'start'?
>     if (start_pfn < end_pfn) {
>         ^~~~~~~~~
>         start
>   arch/x86/mm/init.c:265:6: note: each undeclared identifier is reported only once for each function it appears in
>>> arch/x86/mm/init.c:265:18: error: 'end_pfn' undeclared (first use in this function); did you mean 'pgd_pfn'?
>     if (start_pfn < end_pfn) {
>                     ^~~~~~~
>                     pgd_pfn
>

Oops, introduced an error after resolving a conflict. Should be start and end.

Will correct it in next version.


-- 
Wei Yang
Help you, Help me