[XEN PATCH 1/6] x86/hpet: make variable 'per_cpu__cpu_bc_channel' static

[Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>]

The variable is only ever used inside the file where it's
defined, therefore it can have static storage. This also
resolves a violation of MISRA C:2012 Rule 8.4 due to the absence
of a declaration prior to the definition.

Signed-off-by: Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>
Fixes: 3ba523ff957c ("CPUIDLE: enable MSI capable HPET for timer broadcast")
---
 xen/arch/x86/hpet.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/x86/hpet.c b/xen/arch/x86/hpet.c
index a2df1c7df401..79c07f6a9e09 100644
--- a/xen/arch/x86/hpet.c
+++ b/xen/arch/x86/hpet.c
@@ -49,7 +49,7 @@ static struct hpet_event_channel *__read_mostly hpet_events;
 /* msi hpet channels used for broadcast */
 static unsigned int __read_mostly num_hpets_used;
 
-DEFINE_PER_CPU(struct hpet_event_channel *, cpu_bc_channel);
+static DEFINE_PER_CPU(struct hpet_event_channel *, cpu_bc_channel);
 
 unsigned long __initdata hpet_address;
 int8_t __initdata opt_hpet_legacy_replacement = -1;
-- 
2.34.1