tree 088cd96759cf4c1b2365c0e434dc95a8410b547c
parent e2e2400bd4faee24d11872134b7ae5bd363749c0
author Linus Torvalds <torvalds@linux-foundation.org> 1274981528 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1274981528 -0700

Avoid warning when CPU hotplug isn't enabled

Commit e9fb7631ebcd ("cpu-hotplug: introduce cpu_notify(),
__cpu_notify(), cpu_notify_nofail()") also introduced this annoying
warning:

  kernel/cpu.c:157: warning: 'cpu_notify_nofail' defined but not used

when CONFIG_HOTPLUG_CPU wasn't set.

So move that helper inside the #ifdef CONFIG_HOTPLUG_CPU region, and
simplify it while at it.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>