x86_64: use generic cmos update

Use the generic cmos update function in kernel/time/ntp.c

Cc: john stultz <johnstul@us.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index 14bf8ce3ea23..fca1a85042ea 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -32,6 +32,10 @@ config GENERIC_TIME_VSYSCALL
         bool
         default y
 
+config GENERIC_CMOS_UPDATE
+        bool
+        default y
+
 config ZONE_DMA32
         bool
         default y