Hi Alexey,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on next-20200604]
[cannot apply to kees/for-next/pstore linus/master linux/master v5.7 v5.7-rc7 v5.7-rc6 v5.7]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Alexey-Gladkov/proc-use-subset-option-to-hide-some-top-level-procfs-entries/20200605-040818
base:    d4899e5542c15062cc55cac0ca99025bb64edc61
config: arm64-randconfig-c003-20200604 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0

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


coccinelle warnings: (new ones prefixed by >>)

>> fs/proc/generic.c:204:9-10: WARNING: return of 0/1 in function 'is_pde_visible' with return type bool

Please review and possibly fold the followup patch.

---
0-DAY CI Kernel Test Service, Intel Corporation
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