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    SubjectRe: [PATCH net-next 3/5] virtio_net: Add page pool fragmentation support
    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/virtio_net-Add-page_pool-support-to-improve-performance/20230526-135805
    base: net-next/main
    patch link: https://lore.kernel.org/r/20230526054621.18371-3-liangchen.linux%40gmail.com
    patch subject: [PATCH net-next 3/5] virtio_net: Add page pool fragmentation support
    config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20230527/202305270116.TJ31IjNL-lkp@intel.com/config)
    compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
    reproduce (this is a W=1 build):
    # https://github.com/intel-lab-lkp/linux/commit/dda0469e059354b61192e1d25b77c57351346282
    git remote add linux-review https://github.com/intel-lab-lkp/linux
    git fetch --no-tags linux-review Liang-Chen/virtio_net-Add-page_pool-support-to-improve-performance/20230526-135805
    git checkout dda0469e059354b61192e1d25b77c57351346282
    # save the config file
    mkdir build_dir && cp config build_dir/.config
    make W=1 O=build_dir ARCH=x86_64 olddefconfig
    make W=1 O=build_dir ARCH=x86_64 SHELL=/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/202305270116.TJ31IjNL-lkp@intel.com/

    All errors (new ones prefixed by >>):

    ld: vmlinux.o: in function `virtnet_find_vqs':
    virtio_net.c:(.text+0x901fd2): undefined reference to `page_pool_create'
    ld: vmlinux.o: in function `add_recvbuf_mergeable.isra.0':
    virtio_net.c:(.text+0x905662): undefined reference to `page_pool_alloc_pages'
    >> ld: virtio_net.c:(.text+0x905715): undefined reference to `page_pool_alloc_frag'
    ld: vmlinux.o: in function `xdp_linearize_page':
    virtio_net.c:(.text+0x906c50): undefined reference to `page_pool_alloc_pages'
    ld: virtio_net.c:(.text+0x906e33): undefined reference to `page_pool_alloc_frag'
    ld: vmlinux.o: in function `mergeable_xdp_get_buf.isra.0':
    >> virtio_net.c:(.text+0x90740e): undefined reference to `page_pool_alloc_frag'
    >> ld: virtio_net.c:(.text+0x90750b): undefined reference to `page_pool_alloc_pages'

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

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