[resolves a messed up backport, so no matching upstream commit]
The backport of upstream commit
777c6e0daebb ("hotplug: Make
register and unregister notifier API symmetric") to linux-4.4.y
introduced a harmless warning in 'allnoconfig' builds as spotted by
kernelci.org:
kernel/cpu.c:226:13: warning: 'cpu_notify_nofail' defined but not used [-Wunused-function]
So far, this is the only stable tree that is affected, as linux-4.6 and
higher contain commit
984581728eb4 ("cpu/hotplug: Split out cpu down functions")
that makes the function used in all configurations, while older longterm
releases so far don't seem to have a backport of
777c6e0daebb.
The fix for the warning is trivial: move the unused function back
into the #ifdef section where it was before.
Link: https://kernelci.org/build/id/586fcacb59b514049ef6c3aa/logs/
Fixes: 1c0f4e0ebb79 ("hotplug: Make register and unregister notifier API symmetric") in v4.4.y
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
return __cpu_notify(val, v, -1, NULL);
}
return __cpu_notify(val, v, -1, NULL);
}
-static void cpu_notify_nofail(unsigned long val, void *v)
-{
- BUG_ON(cpu_notify(val, v));
-}
EXPORT_SYMBOL(register_cpu_notifier);
EXPORT_SYMBOL(__register_cpu_notifier);
EXPORT_SYMBOL(register_cpu_notifier);
EXPORT_SYMBOL(__register_cpu_notifier);
EXPORT_SYMBOL(__unregister_cpu_notifier);
#ifdef CONFIG_HOTPLUG_CPU
EXPORT_SYMBOL(__unregister_cpu_notifier);
#ifdef CONFIG_HOTPLUG_CPU
+static void cpu_notify_nofail(unsigned long val, void *v)
+{
+ BUG_ON(cpu_notify(val, v));
+}
+
/**
* clear_tasks_mm_cpumask - Safely clear tasks' mm_cpumask for a CPU
* @cpu: a CPU id
/**
* clear_tasks_mm_cpumask - Safely clear tasks' mm_cpumask for a CPU
* @cpu: a CPU id