intel-iommu: make init_dmars() static

init_dmars() is not used outside of drivers/pci/intel-iommu.c
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

drivers/pci/intel-iommu.c

@@ -1589,7 +1589,7 @@ static inline void iommu_prepare_isa(void)
 }
 #endif /* !CONFIG_DMAR_FLPY_WA */
 
-int __init init_dmars(void)
+static int __init init_dmars(void)
 {
 	struct dmar_drhd_unit *drhd;
 	struct dmar_rmrr_unit *rmrr;

include/linux/dma_remapping.h

@@ -141,7 +141,6 @@ struct device_domain_info {
 	struct dmar_domain *domain; /* pointer to domain */
 };
 
-extern int init_dmars(void);
 extern void free_dmar_iommu(struct intel_iommu *iommu);
 
 extern int dmar_disabled;