linux-kernel - Re: ERROR: modpost: "mips_cm_unlock_other" [drivers/pci/controller/pcie-mt7621.ko] undefined!

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Date:   Fri, 19 Nov 2021 07:41:26 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Sergio Paracuellos <sergio.paracuellos@...il.com>
Cc:     kernel test robot <lkp@...el.com>, kbuild-all@...ts.01.org,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Bjorn Helgaas <helgaas@...nel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        Paul Burton <paulburton@...nel.org>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        "open list:BROADCOM NVRAM DRIVER" <linux-mips@...r.kernel.org>
Subject: Re: ERROR: modpost: "mips_cm_unlock_other"
 [drivers/pci/controller/pcie-mt7621.ko] undefined!

On 11/18/21 10:26 PM, Sergio Paracuellos wrote:
> Hi Randy,
> 
> On Fri, Nov 19, 2021 at 5:56 AM Randy Dunlap <rdunlap@...radead.org> wrote:
>>
>> On 11/17/21 11:09 AM, kernel test robot wrote:
>>> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>>> head:   ee1703cda8dc777e937dec172da55beaf1a74919
>>> commit: 2bdd5238e756aac3ecbffc7c22b884485e84062e PCI: mt7621: Add MediaTek MT7621 PCIe host controller driver
>>> date:   4 weeks ago
>>> config: mips-allmodconfig (attached as .config)
>>> compiler: mips-linux-gcc (GCC) 11.2.0
>>> reproduce (this is a W=1 build):
>>>           wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>>>           chmod +x ~/bin/make.cross
>>>           # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2bdd5238e756aac3ecbffc7c22b884485e84062e
>>>           git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>>>           git fetch --no-tags linus master
>>>           git checkout 2bdd5238e756aac3ecbffc7c22b884485e84062e
>>>           # save the attached .config to linux build tree
>>>           COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=mips
>>>
>>> If you fix the issue, kindly add following tag as appropriate
>>> Reported-by: kernel test robot <lkp@...el.com>
>>>
>>> All errors (new ones prefixed by >>, old ones prefixed by <<):
>>>
>>> ERROR: modpost: missing MODULE_LICENSE() in drivers/pci/controller/pcie-mt7621.o
>>>>> ERROR: modpost: "mips_cm_unlock_other" [drivers/pci/controller/pcie-mt7621.ko] undefined!
>>>>> ERROR: modpost: "mips_cpc_base" [drivers/pci/controller/pcie-mt7621.ko] undefined!
>>>>> ERROR: modpost: "mips_cm_lock_other" [drivers/pci/controller/pcie-mt7621.ko] undefined!
>>>>> ERROR: modpost: "mips_cm_is64" [drivers/pci/controller/pcie-mt7621.ko] undefined!
>>>>> ERROR: modpost: "mips_gcr_base" [drivers/pci/controller/pcie-mt7621.ko] undefined!
>>
>>
>> This is one way to fix these build errors. Is that what the MIPS people
>> want to do or should their be APIs to access these base addresses and
>> mips_cm_is64 data?
> 
> A similar patch was already sent a few weeks ago and Thomas asked for
> a different approach [0].
> I have sent a patch series removing mips stuff from the driver
> controller. This series has not been reviewed yet [1].
> 
> [0]: https://lore.kernel.org/linux-mips/CAMhs-H8ShoaYiFOOzJaGC68nZz=V365RXN_Kjuj=fPFENGJiiw@mail.gmail.com/T/#t
> [1]: https://marc.info/?l=linux-pci&m=163696011110084&w=3
> 

Oh, very good then. Thanks.

-- 
~Randy