[PATCH 08/45] CPU hotplug: Convert preprocessor macros to static inline functions

Srivatsa S. Bhat srivatsa.bhat at linux.vnet.ibm.com
Sun Jun 23 23:39:55 EST 2013


Convert the macros in the CPU hotplug code to static inline C functions.

Cc: Thomas Gleixner <tglx at linutronix.de>
Cc: Andrew Morton <akpm at linux-foundation.org>
Cc: Tejun Heo <tj at kernel.org>
Cc: "Rafael J. Wysocki" <rjw at sisk.pl>
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat at linux.vnet.ibm.com>
---

 include/linux/cpu.h |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index e06c3ad..d91919b 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -200,10 +200,8 @@ static inline void cpu_hotplug_driver_unlock(void)
 
 #else		/* CONFIG_HOTPLUG_CPU */
 
-#define get_online_cpus()	do { } while (0)
-#define put_online_cpus()	do { } while (0)
-#define cpu_hotplug_disable()	do { } while (0)
-#define cpu_hotplug_enable()	do { } while (0)
+static inline void get_online_cpus(void) {}
+static inline void put_online_cpus(void) {}
 
 static inline unsigned int get_online_cpus_atomic(void)
 {
@@ -220,6 +218,9 @@ static inline void put_online_cpus_atomic(void)
 	preempt_enable();
 }
 
+static inline void cpu_hotplug_disable(void) {}
+static inline void cpu_hotplug_enable(void) {}
+
 #define hotcpu_notifier(fn, pri)	do { (void)(fn); } while (0)
 /* These aren't inline functions due to a GCC bug. */
 #define register_hotcpu_notifier(nb)	({ (void)(nb); 0; })



More information about the Linuxppc-dev mailing list