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    Subject[RFC PATCH v2 03/10] CPU hotplug: Convert preprocessor macros to static inline functions
    Date
    On 12/05/2012 06:10 AM, Andrew Morton wrote:
    "static inline C functions would be preferred if possible. Feel free to
    fix up the wrong crufty surrounding code as well ;-)"

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

    Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
    ---

    include/linux/cpu.h | 12 ++++++------
    1 file changed, 6 insertions(+), 6 deletions(-)

    diff --git a/include/linux/cpu.h b/include/linux/cpu.h
    index e2a9c49..599b376 100644
    --- a/include/linux/cpu.h
    +++ b/include/linux/cpu.h
    @@ -200,12 +200,12 @@ 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 get_online_cpus_atomic_light() do { } while (0)
    -#define put_online_cpus_atomic_light() do { } while (0)
    -#define get_online_cpus_atomic_full() do { } while (0)
    -#define put_online_cpus_atomic_full() do { } while (0)
    +static inline void get_online_cpus(void) {}
    +static inline void put_online_cpus(void) {}
    +static inline void get_online_cpus_atomic_light(void) {}
    +static inline void put_online_cpus_atomic_light(void) {}
    +static inline void get_online_cpus_atomic_full(void) {}
    +static inline void put_online_cpus_atomic_full(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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