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From: kbuild test robot <lkp@intel.com>
To: Dima Zavin <dmitriyz@waymo.com>
Cc: kbuild-all@01.org, Christopher Lameter <cl@linux.com>,
	Li Zefan <lizefan@huawei.com>, Pekka Enberg <penberg@kernel.org>,
	David Rientjes <rientjes@google.com>,
	Joonsoo Kim <iamjoonsoo.kim@lge.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	cgroups@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-mm@kvack.org, Cliff Spradlin <cspradlin@waymo.com>,
	Mel Gorman <mgorman@techsingularity.net>
Subject: Re: [PATCH v2] cpuset: fix a deadlock due to incomplete patching of cpusets_enabled()
Date: Sat, 29 Jul 2017 12:56:44 +0800	[thread overview]
Message-ID: <201707291220.DoV5J7Kf%fengguang.wu@intel.com> (raw)
In-Reply-To: <20170727164608.12701-1-dmitriyz@waymo.com>

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Hi Dima,

[auto build test WARNING on v4.12]
[cannot apply to cgroup/for-next linus/master v4.13-rc2 v4.13-rc1 next-20170728]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Dima-Zavin/cpuset-fix-a-deadlock-due-to-incomplete-patching-of-cpusets_enabled/20170729-123852
config: i386-randconfig-x019-201730 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

   In file included from kernel/sched/core.c:13:0:
   include/linux/cpuset.h: In function 'read_mems_allowed_begin':
>> include/linux/cpuset.h:261:9: warning: 'return' with a value, in function returning void
     return 0;
            ^
   include/linux/cpuset.h:259:20: note: declared here
    static inline void read_mems_allowed_begin(struct cpuset_mems_cookie *cookie)
                       ^~~~~~~~~~~~~~~~~~~~~~~

vim +/return +261 include/linux/cpuset.h

58568d2a Miao Xie   2009-06-16  258  
6b828cc9 Dima Zavin 2017-07-27  259  static inline void read_mems_allowed_begin(struct cpuset_mems_cookie *cookie)
c0ff7453 Miao Xie   2010-05-24  260  {
cc9a6c87 Mel Gorman 2012-03-21 @261  	return 0;
c0ff7453 Miao Xie   2010-05-24  262  }
c0ff7453 Miao Xie   2010-05-24  263  

:::::: The code at line 261 was first introduced by commit
:::::: cc9a6c8776615f9c194ccf0b63a0aa5628235545 cpuset: mm: reduce large amounts of memory barrier related damage v3

:::::: TO: Mel Gorman <mgorman@suse.de>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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      parent reply	other threads:[~2017-07-29  4:57 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-26 16:50 [RFC PATCH] mm/slub: " Dima Zavin
2017-07-26 17:02 ` Christopher Lameter
2017-07-26 19:52   ` Dima Zavin
2017-07-26 19:54   ` Dima Zavin
2017-07-27 16:46   ` [PATCH v2] cpuset: " Dima Zavin
2017-07-27 19:48     ` Andrew Morton
2017-07-27 21:41       ` Dima Zavin
2017-07-27 19:51     ` Andrew Morton
2017-07-27 21:41       ` Dima Zavin
2017-07-28  7:45     ` Vlastimil Babka
2017-07-28  8:48       ` Dima Zavin
2017-07-28  9:30       ` Peter Zijlstra
2017-07-28 14:05         ` Vlastimil Babka
2017-07-28 16:52           ` Dima Zavin
2017-07-31  4:01           ` [PATCH v3] " Dima Zavin
2017-07-31  4:04             ` Dima Zavin
2017-07-31  8:02             ` Vlastimil Babka
2017-07-31  9:05               ` Dima Zavin
2017-07-29  4:56     ` kbuild test robot [this message]

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