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SubjectRe: [PATCH] kernel: cpu: send CPU_UP_CANCELLED notification
Hi Channagoud,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.12 next-20170714]
[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/Channagoud-Kadabi/kernel-cpu-send-CPU_UP_CANCELLED-notification/20170715-152954
config: x86_64-randconfig-x019-201728 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

All errors (new ones prefixed by >>):

kernel/cpu.c: In function 'cpuhp_up_callbacks':
>> kernel/cpu.c:368:4: error: implicit declaration of function 'cpu_notify' [-Werror=implicit-function-declaration]
cpu_notify(CPU_UP_CANCELED, cpu);
^~~~~~~~~~
>> kernel/cpu.c:368:15: error: 'CPU_UP_CANCELED' undeclared (first use in this function)
cpu_notify(CPU_UP_CANCELED, cpu);
^~~~~~~~~~~~~~~
kernel/cpu.c:368:15: note: each undeclared identifier is reported only once for each function it appears in
cc1: some warnings being treated as errors

vim +/cpu_notify +368 kernel/cpu.c

355
356 static int cpuhp_up_callbacks(unsigned int cpu, struct cpuhp_cpu_state *st,
357 enum cpuhp_state target)
358 {
359 enum cpuhp_state prev_state = st->state;
360 int ret = 0;
361
362 while (st->state < target) {
363 st->state++;
364 ret = cpuhp_invoke_callback(cpu, st->state, true, NULL);
365 if (ret) {
366 st->target = prev_state;
367 undo_cpu_up(cpu, st);
> 368 cpu_notify(CPU_UP_CANCELED, cpu);
369 break;
370 }
371 }
372 return ret;
373 }
374

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