netdev - Re: [PATCH V7 7/8] vdpasim: vDPA device simulator

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Message-ID: <26bc89b3-8e29-db25-18fc-64e309951a94@redhat.com>
Date:   Wed, 25 Mar 2020 16:15:18 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     kbuild test robot <lkp@...el.com>
Cc:     kbuild-all@...ts.01.org, mst@...hat.com,
        linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
        virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org
Subject: Re: [PATCH V7 7/8] vdpasim: vDPA device simulator


On 2020/3/25 上午10:25, kbuild test robot wrote:
> I love your patch! Yet something to improve:
>
> [auto build test ERROR on vhost/linux-next]
> [also build test ERROR on linux/master linus/master v5.6-rc7 next-20200324]
> [if your patch is applied to the wrong git tree, please drop us a note to help
> improve the system. BTW, we also suggest to use '--base' option to specify the
> base tree in git format-patch, please seehttps://stackoverflow.com/a/37406982]
>
> url:https://github.com/0day-ci/linux/commits/Jason-Wang/vDPA-support/20200324-142634
> base:https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git  linux-next
> config: m68k-allyesconfig (attached as .config)
> compiler: m68k-linux-gcc (GCC) 9.2.0
> reproduce:
>          wgethttps://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross  -O ~/bin/make.cross
>          chmod +x ~/bin/make.cross
>          # save the attached .config to linux build tree
>          GCC_VERSION=9.2.0 make.cross ARCH=m68k
>
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot<lkp@...el.com>
>
> All errors (new ones prefixed by >>):


This is because VDPA_SIM selects VHOST_RING which selects VHOST_IOTLB 
which depends on VIRTULAIZATION but not defined in m68k.

I think we should refine the vhost Kconfig and decouple it out of 
VIRTUALIZATION.

Will send a new series with this shortly.

Thanks