From: Andrew Morton Date: Sat, 1 Jul 2006 11:36:30 +0000 (-0700) Subject: [PATCH] hotcpu_notifier-fixes X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=e2c2770096b686b4d2456173f53cb50e01aa635c;p=linux-beck.git [PATCH] hotcpu_notifier-fixes Always use do {} while (0). Failing to do so can cause subtle compile failures or bugs. Cc: Chandra Seetharaman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/include/linux/cpu.h b/include/linux/cpu.h index a3caf6866bae..44a11f1ccaf2 100644 --- a/include/linux/cpu.h +++ b/include/linux/cpu.h @@ -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; }