iommu/vt-d: Make unnecessarily global functions static

Make some functions static as they are only used inside pasid.c.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210323010600.678627-6-baolu.lu@linux.intel.com


Signed-off-by: Joerg Roedel <jroedel@suse.de>

drivers/iommu/intel/pasid.c

@@ -230,7 +230,7 @@ struct pasid_table *intel_pasid_get_table(struct device *dev)
 	return info->pasid_table;
 }
 
-int intel_pasid_get_dev_max_id(struct device *dev)
+static int intel_pasid_get_dev_max_id(struct device *dev)
 {
 	struct device_domain_info *info;
 
@@ -241,7 +241,7 @@ int intel_pasid_get_dev_max_id(struct device *dev)
 	return info->pasid_table->max_pasid;
 }
 
-struct pasid_entry *intel_pasid_get_entry(struct device *dev, u32 pasid)
+static struct pasid_entry *intel_pasid_get_entry(struct device *dev, u32 pasid)
 {
 	struct device_domain_info *info;
 	struct pasid_table *pasid_table;

drivers/iommu/intel/pasid.h

@@ -102,8 +102,6 @@ extern unsigned int intel_pasid_max_id;
 int intel_pasid_alloc_table(struct device *dev);
 void intel_pasid_free_table(struct device *dev);
 struct pasid_table *intel_pasid_get_table(struct device *dev);
-int intel_pasid_get_dev_max_id(struct device *dev);
-struct pasid_entry *intel_pasid_get_entry(struct device *dev, u32 pasid);
 int intel_pasid_setup_first_level(struct intel_iommu *iommu,
 				  struct device *dev, pgd_t *pgd,
 				  u32 pasid, u16 did, int flags);