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    Subject[PATCH v2 08/45] CPU hotplug: Convert preprocessor macros to static inline functions
    Date
    Convert the macros in the CPU hotplug code to static inline C functions.

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