netdev - Re: [vhost:vhost 20/20] ERROR: "page_poisoning_enabled" [drivers/virtio/virtio

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Date:   Wed, 7 Feb 2018 04:52:28 +0200
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     Wei Wang <wei.w.wang@...el.com>
Cc:     kbuild test robot <fengguang.wu@...el.com>, kbuild-all@...org,
        kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org,
        netdev@...r.kernel.org, Liang Li <liang.z.li@...el.com>
Subject: Re: [vhost:vhost 20/20] ERROR: "page_poisoning_enabled"
 [drivers/virtio/virtio_balloon.ko] undefined!

On Wed, Feb 07, 2018 at 10:25:35AM +0800, Wei Wang wrote:
> On 02/07/2018 09:26 AM, kbuild test robot wrote:
> > tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost
> > head:   96bcd04462b99e2c80e09f6537770a0ca6b288d0
> > commit: 96bcd04462b99e2c80e09f6537770a0ca6b288d0 [20/20] virtio-balloon: VIRTIO_BALLOON_F_FREE_PAGE_HINT
> > config: ia64-allmodconfig (attached as .config)
> > compiler: ia64-linux-gcc (GCC) 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 96bcd04462b99e2c80e09f6537770a0ca6b288d0
> >          # save the attached .config to linux build tree
> >          make.cross ARCH=ia64
> > 
> > All errors (new ones prefixed by >>):
> > 
> >     WARNING: modpost: missing MODULE_LICENSE() in drivers/auxdisplay/img-ascii-lcd.o
> >     see include/linux/module.h for more information
> >     WARNING: modpost: missing MODULE_LICENSE() in drivers/gpio/gpio-ath79.o
> >     see include/linux/module.h for more information
> >     WARNING: modpost: missing MODULE_LICENSE() in drivers/gpio/gpio-iop.o
> >     see include/linux/module.h for more information
> >     WARNING: modpost: missing MODULE_LICENSE() in drivers/iio/accel/kxsd9-i2c.o
> >     see include/linux/module.h for more information
> >     WARNING: modpost: missing MODULE_LICENSE() in drivers/iio/adc/qcom-vadc-common.o
> >     see include/linux/module.h for more information
> >     WARNING: modpost: missing MODULE_LICENSE() in drivers/media/platform/mtk-vcodec/mtk-vcodec-common.o
> >     see include/linux/module.h for more information
> >     WARNING: modpost: missing MODULE_LICENSE() in drivers/media/platform/tegra-cec/tegra_cec.o
> >     see include/linux/module.h for more information
> >     WARNING: modpost: missing MODULE_LICENSE() in drivers/mtd/nand/denali_pci.o
> >     see include/linux/module.h for more information
> >     WARNING: modpost: missing MODULE_LICENSE() in drivers/pinctrl/pxa/pinctrl-pxa2xx.o
> >     see include/linux/module.h for more information
> >     WARNING: modpost: missing MODULE_LICENSE() in drivers/power/reset/zx-reboot.o
> >     see include/linux/module.h for more information
> > > > ERROR: "page_poisoning_enabled" [drivers/virtio/virtio_balloon.ko] undefined!
> 
> page_poisoning_enabled needs to be exposed. I'll send a small patch to add
> EXPORT_SYMBOL_GPL(page_poisoning_enabled).
> 
> 
> Best,
> Wei

This will probably miss this release cycle.

-- 
MST