From: Randy Dunlap <rdunlap@infradead.org>
To: Rong Chen <rong.a.chen@intel.com>, kbuild test robot <lkp@intel.com>
Cc: Linux Memory Management List <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>,
kbuild-all@01.org, Johannes Weiner <hannes@cmpxchg.org>
Subject: Re: [kbuild-all] [mmotm:master 19/222] arch/sh/kernel/cpu/sh2/clock-sh7619.o:undefined reference to `followparent_recalc'
Date: Wed, 3 Apr 2019 07:46:16 -0700 [thread overview]
Message-ID: <38dbc113-2b1c-3fe6-ba37-36f89bbb71c4@infradead.org> (raw)
In-Reply-To: <44789370-4ca9-329f-65ad-8ff428a7e91b@intel.com>
On 4/3/19 12:09 AM, Rong Chen wrote:
>
> On 4/3/19 2:26 PM, Randy Dunlap wrote:
>> On 4/2/19 10:54 PM, kbuild test robot wrote:
>>> Hi Randy,
>>>
>>> It's probably a bug fix that unveils the link errors.
>>>
>>> tree: git://git.cmpxchg.org/linux-mmotm.git master
>>> head: 03590d39c08e0f2969871a5efcf27a366c1e8c60
>>> commit: cffa367bb8abe4c1424e93e345c7d63844d1c5db [19/222] sh: fix multiple function definition build errors
>>> config: sh-allmodconfig (attached as .config)
>>> compiler: sh4-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
>>> reproduce:
>>> wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>>> chmod +x ~/bin/make.cross
>>> git checkout cffa367bb8abe4c1424e93e345c7d63844d1c5db
>>> # save the attached .config to linux build tree
>>> GCC_VERSION=7.2.0 make.cross ARCH=sh
>>>
>>> All errors (new ones prefixed by >>):
>>>
>>>>> arch/sh/kernel/cpu/sh2/clock-sh7619.o:(.data+0x1c): undefined reference to `followparent_recalc'
>>> ---
>>> 0-DAY kernel test infrastructure Open Source Technology Center
>>> https://lists.01.org/pipermail/kbuild-all Intel Corporation
>>>
>> Hi,
>> I suspect that it's more of an invalid .config file.
>> How do you generate the .config files? or is it a defconfig?
>
> the config file was generated by "make ARCH=sh allmodconfig"
>
>
>>
>> Yes, I have seen this build error, but I was able to get around it
>> by modifying the .config file. That's why I suspect that it may be
>> an invalid .config file.
>
> Can you share the fix steps? We'll take a look at it.
Hi,
For this build error:
>> arch/sh/kernel/cpu/sh2/clock-sh7619.o:(.data+0x1c): undefined reference to `followparent_recalc'
the problem is with CONFIG_COMMON_CLK. The COMMON_CLK framework does not
provide this API. However, in arch/sh/boards/Kconfig, COMMON_CLK is always
selected by SH_DEVICE_TREE. By disabling SH_DEVICE_TREE, the build
succeeds.
--
~Randy
next prev parent reply other threads:[~2019-04-03 14:46 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-03 5:54 [mmotm:master 19/222] arch/sh/kernel/cpu/sh2/clock-sh7619.o:undefined reference to `followparent_recalc' kbuild test robot
2019-04-03 6:26 ` Randy Dunlap
2019-04-03 7:09 ` [kbuild-all] " Rong Chen
2019-04-03 14:46 ` Randy Dunlap [this message]
2019-04-04 0:20 ` Rong Chen
2019-04-04 0:39 ` Randy Dunlap
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