Hi Petr,

[auto build test ERROR on v4.6-rc1]
[cannot apply to tip/x86/core next-20160330]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Petr-Mladek/Cleaning-printk-stuff-in-NMI-context/20160330-235818
config: i386-randconfig-s1-201613 (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   kernel/printk/nmi.c: In function 'printk_nmi_flush_on_panic':

quoted

kernel/printk/nmi.c:218:4: error: implicit declaration of function 'debug_locks_off' [-Werror=implicit-function-declaration]

       debug_locks_off();
       ^
   cc1: some warnings being treated as errors

vim +/debug_locks_off +218 kernel/printk/nmi.c

   212			 * Do not risk a double release when more CPUs are up.
   213			 */
   214			if (raw_spin_is_locked(&logbuf_lock)) {
   215				if (num_online_cpus() > 1)
   216					return;
   217	
 > 218				debug_locks_off();
   219				raw_spin_lock_init(&logbuf_lock);
   220			}
   221	

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