From: kernel test robot <lkp@intel.com>
To: Oscar Salvador <osalvador@suse.de>,
Andrew Morton <akpm@linux-foundation.org>
Cc: oe-kbuild-all@lists.linux.dev,
Linux Memory Management List <linux-mm@kvack.org>,
linux-kernel@vger.kernel.org, Michal Hocko <mhocko@suse.com>,
Vlastimil Babka <vbabka@suse.cz>, Marco Elver <elver@google.com>,
Andrey Konovalov <andreyknvl@gmail.com>,
Alexander Potapenko <glider@google.com>,
Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
Oscar Salvador <osalvador@suse.de>,
syzbot+41bbfdb8d41003d12c0f@syzkaller.appspotmail.com
Subject: Re: [PATCH v2 1/2] mm,page_owner: Fix refcount imbalance
Date: Thu, 21 Mar 2024 07:37:12 +0800 [thread overview]
Message-ID: <202403210718.9IiE8NIU-lkp@intel.com> (raw)
In-Reply-To: <20240319183212.17156-2-osalvador@suse.de>
Hi Oscar,
kernel test robot noticed the following build warnings:
[auto build test WARNING on akpm-mm/mm-everything]
[also build test WARNING on linus/master next-20240320]
[cannot apply to v6.8]
[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/Oscar-Salvador/mm-page_owner-Fix-refcount-imbalance/20240320-023302
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything
patch link: https://lore.kernel.org/r/20240319183212.17156-2-osalvador%40suse.de
patch subject: [PATCH v2 1/2] mm,page_owner: Fix refcount imbalance
config: x86_64-randconfig-r081-20240320 (https://download.01.org/0day-ci/archive/20240321/202403210718.9IiE8NIU-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240321/202403210718.9IiE8NIU-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202403210718.9IiE8NIU-lkp@intel.com/
All warnings (new ones prefixed by >>):
mm/page_owner.c: In function 'dec_stack_record_count':
>> mm/page_owner.c:213:3: warning: ignoring return value of 'refcount_sub_and_test', declared with attribute warn_unused_result [-Wunused-result]
213 | refcount_sub_and_test(nr_base_pages, &stack_record->count);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +/refcount_sub_and_test +213 mm/page_owner.c
206
207 static void dec_stack_record_count(depot_stack_handle_t handle,
208 int nr_base_pages)
209 {
210 struct stack_record *stack_record = __stack_depot_get_stack_record(handle);
211
212 if (stack_record)
> 213 refcount_sub_and_test(nr_base_pages, &stack_record->count);
214 }
215
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
prev parent reply other threads:[~2024-03-20 23:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20240319183212.17156-2-osalvador@suse.de>
2024-03-20 17:35 ` [PATCH v2 1/2] mm,page_owner: Fix refcount imbalance kernel test robot
2024-03-20 23:37 ` kernel test robot [this message]
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