Re: [PATCH bpf-next v4 4/5] bpf: Add support for writing to nf_conn:mark

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Hi Daniel,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on bpf-next/master]

url:    https://github.com/intel-lab-lkp/linux/commits/Daniel-Xu/bpf-Remove-duplicate-PTR_TO_BTF_ID-RO-check/20220823-032643
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
config: x86_64-rhel-8.3-kselftests (https://download.01.org/0day-ci/archive/20220823/202208232110.vsR1bsL0-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.3.0-5) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/496ec6d75c8e8758f93c6b987eee83713c911a05
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Daniel-Xu/bpf-Remove-duplicate-PTR_TO_BTF_ID-RO-check/20220823-032643
        git checkout 496ec6d75c8e8758f93c6b987eee83713c911a05
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        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@xxxxxxxxx>

All errors (new ones prefixed by >>):

   ld: net/core/filter.o: in function `tc_cls_act_btf_struct_access':
   net/core/filter.c:8644: undefined reference to `nf_conntrack_btf_struct_access'
   ld: net/core/filter.o: in function `xdp_btf_struct_access':
>> include/net/net_namespace.h:369: undefined reference to `nf_conntrack_btf_struct_access'
   pahole: .tmp_vmlinux.btf: Invalid argument
   .btf.vmlinux.bin.o: file not recognized: file format not recognized


vim +369 include/net/net_namespace.h

8f424b5f32d78b Eric Dumazet      2008-11-12  365  
0c5c9fb5510633 Eric W. Biederman 2015-03-11  366  static inline struct net *read_pnet(const possible_net_t *pnet)
8f424b5f32d78b Eric Dumazet      2008-11-12  367  {
0c5c9fb5510633 Eric W. Biederman 2015-03-11  368  #ifdef CONFIG_NET_NS
0c5c9fb5510633 Eric W. Biederman 2015-03-11 @369  	return pnet->net;
8f424b5f32d78b Eric Dumazet      2008-11-12  370  #else
0c5c9fb5510633 Eric W. Biederman 2015-03-11  371  	return &init_net;
8f424b5f32d78b Eric Dumazet      2008-11-12  372  #endif
0c5c9fb5510633 Eric W. Biederman 2015-03-11  373  }
5d1e4468a7705d Denis V. Lunev    2008-04-16  374  

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp



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