[PATCH 3/4] xen/arm: domain: Fix MISRA C 2012 Rule 8.7 violation

[Xenia Ragiadakou <burzalodowa@xxxxxxxxx>]

The function idle_loop() is referenced only in domain.c.
Change its linkage from external to internal by adding the storage-class
specifier static to its definitions.

Since idle_loop() is referenced only in inline assembly, add the 'used'
attribute to suppress unused-function compiler warning.

Also, this patch resolves indirectly a MISRA C 2012 Rule 8.4 violation warning.

Signed-off-by: Xenia Ragiadakou <burzalodowa@xxxxxxxxx>
---
 xen/arch/arm/domain.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/arm/domain.c b/xen/arch/arm/domain.c
index 2f8eaab7b5..2fa67266d0 100644
--- a/xen/arch/arm/domain.c
+++ b/xen/arch/arm/domain.c
@@ -63,7 +63,7 @@ static void do_idle(void)
     rcu_idle_exit(cpu);
 }
 
-void idle_loop(void)
+static __used void idle_loop(void)
 {
     unsigned int cpu = smp_processor_id();
 
-- 
2.34.1