linux-kernel - Re: [PATCH v4 5/7] locking/lockdep: Track number of zapped lock chains

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Date:   Fri, 24 Jan 2020 21:18:06 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Waiman Long <longman@...hat.com>
Cc:     kbuild-all@...ts.01.org, Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Will Deacon <will.deacon@....com>,
        linux-kernel@...r.kernel.org, Bart Van Assche <bvanassche@....org>,
        Waiman Long <longman@...hat.com>
Subject: Re: [PATCH v4 5/7] locking/lockdep: Track number of zapped lock
 chains

Hi Waiman,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on tip/locking/core]
[also build test ERROR on tip/auto-latest arm-perf/for-next/perf v5.5-rc7 next-20200123]
[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/Waiman-Long/locking-lockdep-Reuse-zapped-chain_hlocks-entries/20200124-085419
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git f5bfdc8e3947a7ae489cf8ae9cfd6b3fb357b952
config: x86_64-randconfig-d001-20200124 (attached as .config)
compiler: gcc-7 (Debian 7.5.0-3) 7.5.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

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

All errors (new ones prefixed by >>):

   ld: kernel/locking/lockdep_proc.o: in function `lockdep_stats_show':
>> lockdep_proc.c:(.text+0x3fd): undefined reference to `nr_zapped_lock_chains'

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

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