linux-kernel - Re: ERROR: "ap_driver

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Date:   Wed, 5 Aug 2020 10:13:40 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     kernel test robot <lkp@...el.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Joerg Roedel <jroedel@...e.de>
Subject: Re: ERROR: "ap_driver_register" undefined!

On Tue, Aug 04, 2020 at 10:29:53PM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   c0842fbc1b18c7a044e6ff3e8fa78bfa822c7d1a
> commit: e93a1695d7fb551376b1c1220a267d032b6ad159 iommu: Enable compile testing for some of drivers
> date:   5 months ago
> config: s390-randconfig-m031-20200804 (attached as .config)
> compiler: s390-linux-gcc (GCC) 9.3.0
> 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
>         git checkout e93a1695d7fb551376b1c1220a267d032b6ad159
>         # save the attached .config to linux build tree
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=s390 
> 
> 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 >>):
> 
> >> ERROR: "ap_driver_register" [drivers/s390/crypto/vfio_ap.ko] undefined!
> >> ERROR: "ap_driver_unregister" [drivers/s390/crypto/vfio_ap.ko] undefined!

I have a fix for this ready. I'll send it soon.

Best regards,
Krzysztof