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Subject: Re: undefined reference to `start_isolate_page_range'
To:     Randy Dunlap <rdunlap@infradead.org>,
        kernel test robot <lkp@intel.com>
Cc:     kbuild-all@lists.01.org, linux-kernel@vger.kernel.org,
        Christoph Hellwig <hch@lst.de>
References: <202011210906.WVDfrAtS-lkp@intel.com>
 <4860e097-f90e-fdf6-454f-514e4a7c3c68@infradead.org>
From:   Michal Simek <monstr@monstr.eu>
Message-ID: <ee32a1f8-8216-346d-8572-3521b7688db4@monstr.eu>
Date:   Mon, 23 Nov 2020 16:21:11 +0100
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On 23. 11. 20 2:13, Randy Dunlap wrote:
> On 11/20/20 5:26 PM, kernel test robot wrote:
>> Hi Michal,
>>
>> FYI, the error/warning still remains.
>>
>> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>> head:   4ccf7a01e805f04defd423fb410f47a13af76399
>> commit: 2602276d3d3811b1a48c48113042cd75fcbfc27d microblaze: Wire CMA allocator
>> date:   10 months ago
>> config: microblaze-randconfig-s031-20201121 (attached as .config)
>> compiler: microblaze-linux-gcc (GCC) 9.3.0
>> reproduce:
>>         wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>>         chmod +x ~/bin/make.cross
>>         # apt-get install sparse
>>         # sparse version: v0.6.3-134-gb59dbdaf-dirty
>>         # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2602276d3d3811b1a48c48113042cd75fcbfc27d
>>         git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>>         git fetch --no-tags linus master
>>         git checkout 2602276d3d3811b1a48c48113042cd75fcbfc27d
>>         # save the attached .config to linux build tree
>>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=microblaze 
>>
>> If you fix the issue, kindly add following tag as appropriate
>> Reported-by: kernel test robot <lkp@intel.com>
>>
>> All errors (new ones prefixed by >>):
>>
>>    microblaze-linux-ld: mm/page_alloc.o: in function `alloc_contig_range':
>>>> (.text+0xa1fc): undefined reference to `start_isolate_page_range'
>>>> microblaze-linux-ld: (.text+0xa40c): undefined reference to `test_pages_isolated'
>>>> microblaze-linux-ld: (.text+0xa47c): undefined reference to `undo_isolate_page_range'
> 
> 
> FTR:  This is a Kconfig problem in drivers/gpu/drm/aspeed/Kconfig
> and it is fixed in linux-next and drm-misc-next.
> 
> https://lore.kernel.org/dri-devel/20201011230131.4922-1-rdunlap@infradead.org/
> 

Thanks for letting me know.
Michal

-- 
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Xilinx Microblaze
Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs
U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP/Versal SoCs