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[PATCH] hotcpu_notifier-fixes

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Always use do {} while (0).  Failing to do so can cause subtle compile
failures or bugs.

Cc: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andrew Morton 2006-07-01 04:36:30 -07:00 committed by Linus Torvalds
parent 1add6781c8
commit e2c2770096
1 changed files with 3 additions and 3 deletions
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6
include/linux/cpu.h
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@ -87,9 +87,9 @@ int cpu_down(unsigned int cpu);
#define lock_cpu_hotplug() do { } while (0)
#define unlock_cpu_hotplug() do { } while (0)
#define lock_cpu_hotplug_interruptible() 0
#define hotcpu_notifier(fn, pri)
#define register_hotcpu_notifier(nb)
#define unregister_hotcpu_notifier(nb)
#define hotcpu_notifier(fn, pri) do { } while (0)
#define register_hotcpu_notifier(nb) do { } while (0)
#define unregister_hotcpu_notifier(nb) do { } while (0)
/* CPUs don't go offline once they're online w/o CONFIG_HOTPLUG_CPU */
static inline int cpu_is_offline(int cpu) { return 0; }