linux-kernel - Re: [PATCH 2/3] mm: memcg: plumbing memcg for kmalloc allocations

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Date:   Wed, 21 Feb 2018 07:38:11 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Shakeel Butt <shakeelb@...gle.com>
Cc:     kbuild-all@...org, Jan Kara <jack@...e.cz>,
        Amir Goldstein <amir73il@...il.com>,
        Christoph Lameter <cl@...ux.com>,
        Pekka Enberg <penberg@...nel.org>,
        David Rientjes <rientjes@...gle.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Greg Thelen <gthelen@...gle.com>,
        Johannes Weiner <hannes@...xchg.org>,
        Michal Hocko <mhocko@...nel.org>,
        Vladimir Davydov <vdavydov.dev@...il.com>,
        Mel Gorman <mgorman@...e.de>, Vlastimil Babka <vbabka@...e.cz>,
        linux-fsdevel@...r.kernel.org, linux-mm@...ck.org,
        cgroups@...r.kernel.org, linux-kernel@...r.kernel.org,
        Shakeel Butt <shakeelb@...gle.com>
Subject: Re: [PATCH 2/3] mm: memcg: plumbing memcg for kmalloc allocations

Hi Shakeel,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on mmotm/master]
[also build test ERROR on v4.16-rc2 next-20180220]
[cannot apply to linus/master]
[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/Shakeel-Butt/Directed-kmem-charging/20180221-071026
base:   git://git.cmpxchg.org/linux-mmotm.git master
config: i386-tinyconfig (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   arch/x86/events/core.o: In function `allocate_fake_cpuc':
>> core.c:(.text+0x52b): undefined reference to `__kmalloc_memcg'
   arch/x86/events/core.o: In function `merge_attr':
>> core.c:(.init.text+0x2c): undefined reference to `__kmalloc_memcg'
   arch/x86/events/intel/core.o: In function `intel_pmu_cpu_prepare':
   core.c:(.text+0x1674): undefined reference to `__kmalloc_memcg'
   arch/x86/events/intel/pt.o: In function `pt_init':
>> pt.c:(.init.text+0x125): undefined reference to `__kmalloc_memcg'
   pt.c:(.init.text+0x13c): undefined reference to `__kmalloc_memcg'
   arch/x86/kernel/e820.o:e820.c:(.init.text+0xa5b): more undefined references to `__kmalloc_memcg' follow

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