[PATCH] x86/Hyper-V: Fix build error with CONFIG_HYPERV_TSCPAGE=N

[lantianyu1986]

From: Tianyu Lan <Tianyu.Lan@xxxxxxxxxxxxx>

Both Hyper-V tsc page and Hyper-V tsc MSR code use variable
hv_sched_clock_offset for their sched clock callback and so
define the variable regardless of CONFIG_HYPERV_TSCPAGE setting.

Signed-off-by: Tianyu Lan <Tianyu.Lan@xxxxxxxxxxxxx>
---
This patch is based on the top of "git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
timers/core".

 drivers/clocksource/hyperv_timer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clocksource/hyperv_timer.c b/drivers/clocksource/hyperv_timer.c
index dad8af198e20..c322ab4d3689 100644
--- a/drivers/clocksource/hyperv_timer.c
+++ b/drivers/clocksource/hyperv_timer.c
@@ -22,6 +22,7 @@
 #include <asm/mshyperv.h>
 
 static struct clock_event_device __percpu *hv_clock_event;
+static u64 hv_sched_clock_offset __ro_after_init;
 
 /*
  * If false, we're using the old mechanism for stimer0 interrupts
@@ -215,7 +216,6 @@ EXPORT_SYMBOL_GPL(hyperv_cs);
 #ifdef CONFIG_HYPERV_TSCPAGE
 
 static struct ms_hyperv_tsc_page tsc_pg __aligned(PAGE_SIZE);
-static u64 hv_sched_clock_offset __ro_after_init;
 
 struct ms_hyperv_tsc_page *hv_get_tsc_page(void)
 {
-- 
2.14.5