Re: [PATCH v5 03/20] kthread: Add create_kthread_worker*()

From: kbuild test robot
Date: Mon Feb 22 2016 - 10:49:52 EST


Hi Petr,

[auto build test ERROR on soc-thermal/next]
[also build test ERROR on v4.5-rc5 next-20160222]
[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/kthread-Use-kthread-worker-API-more-widely/20160222-230250
base: https://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal next
config: xtensa-allyesconfig (attached as .config)
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=xtensa

All error/warnings (new ones prefixed by >>):

kernel/kthread.c: In function 'create_kthread_worker_on_cpu':
>> kernel/kthread.c:691:9: error: incompatible type for argument 3 of '__create_kthread_worker'
return __create_kthread_worker(cpu, namefmt, NULL);
^
kernel/kthread.c:622:1: note: expected 'va_list' but argument is of type 'void *'
__create_kthread_worker(int cpu, const char namefmt[], va_list args)
^
>> kernel/kthread.c:692:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^

vim +/__create_kthread_worker +691 kernel/kthread.c

685 * when the needed structures could not get allocated, and ERR_PTR(-EINTR)
686 * when the worker was SIGKILLed.
687 */
688 struct kthread_worker *
689 create_kthread_worker_on_cpu(int cpu, const char namefmt[])
690 {
> 691 return __create_kthread_worker(cpu, namefmt, NULL);
> 692 }
693 EXPORT_SYMBOL(create_kthread_worker_on_cpu);
694
695 /* insert @work before @pos in @worker */

---
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