linux-kernel - Re: [PATCH v2] mm: page_alloc: dump migrate-failed pages

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Message-ID: <202103090838.baOhVUAv-lkp@intel.com>
Date:   Tue, 9 Mar 2021 08:30:44 +0800
From:   kernel test robot <lkp@...el.com>
To:     Minchan Kim <minchan@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     kbuild-all@...org,
        Linux Memory Management List <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>,
        John Dias <joaodias@...gle.com>,
        Michal Hocko <mhocko@...e.com>,
        David Hildenbrand <david@...hat.com>,
        Jason Baron <jbaron@...mai.com>,
        Minchan Kim <minchan@...nel.org>
Subject: Re: [PATCH v2] mm: page_alloc: dump migrate-failed pages

Hi Minchan,

I love your patch! Perhaps something to improve:

[auto build test WARNING on hnaz-linux-mm/master]

url:    https://github.com/0day-ci/linux/commits/Minchan-Kim/mm-page_alloc-dump-migrate-failed-pages/20210309-042205
base:   https://github.com/hnaz/linux-mm master
config: i386-randconfig-s001-20210309 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.3-262-g5e674421-dirty
        # https://github.com/0day-ci/linux/commit/3c635af37b862e9c601ee8d5818f7da9cd3e2e57
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Minchan-Kim/mm-page_alloc-dump-migrate-failed-pages/20210309-042205
        git checkout 3c635af37b862e9c601ee8d5818f7da9cd3e2e57
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 

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


"sparse warnings: (new ones prefixed by >>)"
>> mm/page_alloc.c:8348:5: sparse: sparse: symbol 'alloc_contig_ratelimit' was not declared. Should it be static?
>> mm/page_alloc.c:8353:6: sparse: sparse: symbol 'dump_migrate_failure_pages' was not declared. Should it be static?
   mm/page_alloc.c: note: in included file (through include/linux/mm.h):
   include/linux/gfp.h:325:27: sparse: sparse: restricted gfp_t degrades to integer
   include/linux/gfp.h:325:27: sparse: sparse: restricted gfp_t degrades to integer
   include/linux/gfp.h:325:27: sparse: sparse: restricted gfp_t degrades to integer
   include/linux/gfp.h:325:27: sparse: sparse: restricted gfp_t degrades to integer

Please review and possibly fold the followup patch.

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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