linux-kernel - Re: ERROR: modpost: "zap_vma

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Date:   Sun, 28 Mar 2021 16:52:41 -0300
From:   Jason Gunthorpe <jgg@...dia.com>
To:     kernel test robot <lkp@...el.com>
Cc:     "kbuild-all@...ts.01.org" <kbuild-all@...ts.01.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Alex Williamson <alex.williamson@...hat.com>,
        Eric Auger <eric.auger@...hat.com>
Subject: Re: ERROR: modpost: "zap_vma_ptes" undefined!

On Wed, Mar 24, 2021 at 08:59:13AM +0000, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   7acac4b3196caee5e21fb5ea53f8bc124e6a16fc
> commit: 179209fa12709a3df8888c323b37315da2683c24 vfio: IOMMU_API should be selected
> date:   8 days ago
> config: riscv-randconfig-r016-20210324 (attached as .config)
> compiler: riscv64-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
>         # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=179209fa12709a3df8888c323b37315da2683c24
>         git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>         git fetch --no-tags linus master
>         git checkout 179209fa12709a3df8888c323b37315da2683c24
>         # save the attached .config to linux build tree
>         COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=riscv 
> 
> 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: "zap_vma_ptes" [drivers/vfio/pci/vfio-pci.ko] undefined!

This is the because of the patch ordering that Cornelia mentioned,
!MMU is fixed in the next patch

Jason