[PATCH v2 08/45] CPU hotplug: Convert preprocessor macros to staticinline functions

From: Srivatsa S. Bhat
Date: Tue Jun 25 2013 - 16:30:32 EST


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

Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: "Rafael J. Wysocki" <rjw@xxxxxxx>
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@xxxxxxxxxxxxxxxxxx>
---

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 a57b25a..85431a0 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -202,10 +202,8 @@ 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)
{
@@ -222,6 +220,9 @@ 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; })

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