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References: <20230526054621.18371-2-liangchen.linux@gmail.com>
 <202305262334.GiFQ3wpG-lkp@intel.com> <20230528022658-mutt-send-email-mst@kernel.org>
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From:   Liang Chen <liangchen.linux@gmail.com>
Date:   Mon, 29 May 2023 15:28:04 +0800
Message-ID: <CAKhg4t+xof9LiFbd2bJX03X=RL0uVZAxYbM5FQb106HgqWVYFA@mail.gmail.com>
Subject: Re: [PATCH net-next 2/5] virtio_net: Add page_pool support to improve performance
To:     "Michael S. Tsirkin" <mst@redhat.com>
Cc:     kernel test robot <lkp@intel.com>, jasowang@redhat.com,
        oe-kbuild-all@lists.linux.dev,
        virtualization@lists.linux-foundation.org, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org, xuanzhuo@linux.alibaba.com,
        kuba@kernel.org, edumazet@google.com, davem@davemloft.net,
        pabeni@redhat.com, alexander.duyck@gmail.com
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On Sun, May 28, 2023 at 2:27=E2=80=AFPM Michael S. Tsirkin <mst@redhat.com>=
 wrote:
>
> On Sat, May 27, 2023 at 12:11:25AM +0800, kernel test robot wrote:
> > Hi Liang,
> >
> > kernel test robot noticed the following build errors:
> >
> > [auto build test ERROR on net-next/main]
> >
> > url:    https://github.com/intel-lab-lkp/linux/commits/Liang-Chen/virti=
o_net-Add-page_pool-support-to-improve-performance/20230526-135805
> > base:   net-next/main
> > patch link:    https://lore.kernel.org/r/20230526054621.18371-2-liangch=
en.linux%40gmail.com
> > patch subject: [PATCH net-next 2/5] virtio_net: Add page_pool support t=
o improve performance
> > config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20230=
526/202305262334.GiFQ3wpG-lkp@intel.com/config)
> > compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
> > reproduce (this is a W=3D1 build):
> >         # https://github.com/intel-lab-lkp/linux/commit/bfba563f43bba37=
181d8502cb2e566c32f96ec9e
> >         git remote add linux-review https://github.com/intel-lab-lkp/li=
nux
> >         git fetch --no-tags linux-review Liang-Chen/virtio_net-Add-page=
_pool-support-to-improve-performance/20230526-135805
> >         git checkout bfba563f43bba37181d8502cb2e566c32f96ec9e
> >         # save the config file
> >         mkdir build_dir && cp config build_dir/.config
> >         make W=3D1 O=3Dbuild_dir ARCH=3Dx86_64 olddefconfig
> >         make W=3D1 O=3Dbuild_dir ARCH=3Dx86_64 SHELL=3D/bin/bash
> >
> > If you fix the issue, kindly add following tag where applicable
> > | Reported-by: kernel test robot <lkp@intel.com>
> > | Closes: https://lore.kernel.org/oe-kbuild-all/202305262334.GiFQ3wpG-l=
kp@intel.com/
> >
> > All errors (new ones prefixed by >>):
> >
> >    ld: vmlinux.o: in function `virtnet_find_vqs':
> > >> virtio_net.c:(.text+0x901fb5): undefined reference to `page_pool_cre=
ate'
> >    ld: vmlinux.o: in function `add_recvbuf_mergeable.isra.0':
> > >> virtio_net.c:(.text+0x905618): undefined reference to `page_pool_all=
oc_pages'
> >    ld: vmlinux.o: in function `xdp_linearize_page':
> >    virtio_net.c:(.text+0x906b6b): undefined reference to `page_pool_all=
oc_pages'
> >    ld: vmlinux.o: in function `mergeable_xdp_get_buf.isra.0':
> >    virtio_net.c:(.text+0x90728f): undefined reference to `page_pool_all=
oc_pages'
>
>
> you need to tweak Kconfig to select PAGE_POOL I think.
>

Sure, thanks!


> > --
> > 0-DAY CI Kernel Test Service
> > https://github.com/intel/lkp-tests/wiki
>