[PATCH 3/5] xen/drivers: iommu: Fix MISRA C 2012 Rule 8.7 violation

[Xenia Ragiadakou <burzalodowa@xxxxxxxxx>]

The variable iommu_crash_disable is referenced only in one translation unit.
Change its linkage from external to internal by adding the storage-class
specifier static to its definition.

This patch aims to resolve indirectly a MISRA C 2012 Rule 8.4 violation warning.

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

diff --git a/xen/drivers/passthrough/iommu.c b/xen/drivers/passthrough/iommu.c
index 75df3aa8dd..77f64e6174 100644
--- a/xen/drivers/passthrough/iommu.c
+++ b/xen/drivers/passthrough/iommu.c
@@ -29,7 +29,7 @@ bool_t __initdata iommu_enable = 1;
 bool_t __read_mostly iommu_enabled;
 bool_t __read_mostly force_iommu;
 bool_t __read_mostly iommu_verbose;
-bool_t __read_mostly iommu_crash_disable;
+static bool_t __read_mostly iommu_crash_disable;
 
 #define IOMMU_quarantine_none         0 /* aka false */
 #define IOMMU_quarantine_basic        1 /* aka true */
-- 
2.34.1