Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit e2c27700 authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds
Browse files

[PATCH] hotcpu_notifier-fixes 



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: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 1add6781

include/linux/cpu.h

+3 −3
Original line number Diff line number Diff line
@@ -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; }