Hi,

[auto build test ERROR on v4.7-rc7]
[also build test ERROR on next-20160718]
[cannot apply to tip/core/locking]
[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/Peter-Zijlstra/locking-percpu-rwsem-Optimize-readers-and-reduce-global-impact/20160715-142422
config: x86_64-allmodconfig (attached as .config)
compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   ERROR: "rcu_sync_lockdep_assert" [kernel/locking/locktorture.ko] undefined!
>> ERROR: "rcu_sync_lockdep_assert" [fs/ext4/ext4.ko] undefined!

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