Re: [PATCH v2 1/3] perf: add PERF_RECORD_NAMESPACES to include namespaces related info

From: kbuild test robot
Date: Thu Nov 24 2016 - 17:56:29 EST


Hi Hari,

[auto build test ERROR on tip/perf/core]
[also build test ERROR on v4.9-rc6]
[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/Hari-Bathini/perf-add-support-for-analyzing-events-for-containers/20161125-061105
config: ia64-allmodconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 6.2.0
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=ia64

All errors (new ones prefixed by >>):

kernel/fork.c: In function 'SYSC_unshare':
>> kernel/fork.c:2284:3: error: implicit declaration of function 'perf_event_namespaces' [-Werror=implicit-function-declaration]
perf_event_namespaces(current);
^~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
--
kernel/nsproxy.c: In function 'SYSC_setns':
>> kernel/nsproxy.c:270:3: error: implicit declaration of function 'perf_event_namespaces' [-Werror=implicit-function-declaration]
perf_event_namespaces(tsk);
^~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors

vim +/perf_event_namespaces +2284 kernel/fork.c

2278 bad_unshare_cleanup_fs:
2279 if (new_fs)
2280 free_fs_struct(new_fs);
2281
2282 bad_unshare_out:
2283 if (!err)
> 2284 perf_event_namespaces(current);
2285
2286 return err;
2287 }

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