x86/xen: add some __init and static annotations in arch/x86/xen/setup.c

Some more functions in arch/x86/xen/setup.c can be made "__init".
xen_ignore_unusable() can be made "static".

Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index 4dcc608..55f388e 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -535,8 +535,8 @@
 	return min(max_pages, MAX_DOMAIN_PAGES);
 }
 
-static void xen_align_and_add_e820_region(phys_addr_t start, phys_addr_t size,
-					  int type)
+static void __init xen_align_and_add_e820_region(phys_addr_t start,
+						 phys_addr_t size, int type)
 {
 	phys_addr_t end = start + size;
 
@@ -549,7 +549,7 @@
 	e820_add_region(start, end - start, type);
 }
 
-void xen_ignore_unusable(struct e820entry *list, size_t map_size)
+static void __init xen_ignore_unusable(struct e820entry *list, size_t map_size)
 {
 	struct e820entry *entry;
 	unsigned int i;