Hi Eric,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linux/master]
[also build test WARNING on linus/master v6.0-rc7 next-20220929]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Eric-W-Biederman/proc-Update-proc-net-to-point-at-the-accessing-threads-network-namespace/20220930-065017
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 987a926c1d8a40e4256953b04771fbdb63bc7938
config: i386-randconfig-s001
compiler: gcc-11 (Debian 11.3.0-5) 11.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.4-39-gce1a6720-dirty
        # https://github.com/intel-lab-lkp/linux/commit/5336f1902b4ba8a646f082f32fbb183850a13080
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Eric-W-Biederman/proc-Update-proc-net-to-point-at-the-accessing-threads-network-namespace/20220930-065017
        git checkout 5336f1902b4ba8a646f082f32fbb183850a13080
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash fs/proc/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

sparse warnings: (new ones prefixed by >>)
>> fs/proc/proc_net.c:472:13: sparse: sparse: symbol 'proc_net_symlink_init' was not declared. Should it be static?

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