s390/time: use CLOCKSOURCE_MASK

Make use of CLOCKSOURCE_MASK instead of open-coding it.

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 700127b..3170596 100644 (file)
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -253,7 +253,7 @@ static struct clocksource clocksource_tod = {
        .name           = "tod",
        .rating         = 400,
        .read           = read_tod_clock,
-       .mask           = -1ULL,
+       .mask           = CLOCKSOURCE_MASK(64),
        .mult           = 1000,
        .shift          = 12,
        .flags          = CLOCK_SOURCE_IS_CONTINUOUS,