Subject: Re: [PATCH net-next 2/5] virtio_net: Add page_pool support to improve performance

From: kernel test robot <[email-masked]>
Date: Sat, 27 May 2023 00:11:25 +0800

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/20230526054621.18371-2-liangchen.linux%40gmail.com
patch subject: [PATCH net-next 2/5] virtio_net: Add page_pool support to improve performance
config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20230526/[email-masked]/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/bfba563f43bba37181d8502cb2e566c32f96ec9e
        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 bfba563f43bba37181d8502cb2e566c32f96ec9e
        # 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 <[email-masked]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email-masked]/

All errors (new ones prefixed by >>):

   ld: vmlinux.o: in function `virtnet_find_vqs':
>> virtio_net.c:(.text+0x901fb5): undefined reference to `page_pool_create'
   ld: vmlinux.o: in function `add_recvbuf_mergeable.isra.0':
>> virtio_net.c:(.text+0x905618): undefined reference to `page_pool_alloc_pages'
   ld: vmlinux.o: in function `xdp_linearize_page':
   virtio_net.c:(.text+0x906b6b): undefined reference to `page_pool_alloc_pages'
   ld: vmlinux.o: in function `mergeable_xdp_get_buf.isra.0':
   virtio_net.c:(.text+0x90728f): undefined reference to `page_pool_alloc_pages'

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