staging: fsl-mc: turn several exported functions static

They are never used outside the source they are implemented in and very
likely never will, so it's safe to make them static.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/fsl-mc/bus/dprc-driver.c

@@ -221,8 +221,8 @@ static void dprc_add_new_devices(struct fsl_mc_device *mc_bus_dev,
  * populated before they can get allocation requests from probe callbacks
  * of the device drivers for the non-allocatable devices.
  */
-int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev,
-		      unsigned int *total_irq_count)
+static int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev,
+			     unsigned int *total_irq_count)
 {
 	int num_child_objects;
 	int dprc_get_obj_failures;
@@ -310,7 +310,6 @@ int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev,
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(dprc_scan_objects);
 
 /**
  * dprc_scan_container - Scans a physical DPRC and synchronizes Linux bus state
@@ -321,7 +320,7 @@ EXPORT_SYMBOL_GPL(dprc_scan_objects);
  * bus driver with the actual state of the MC by adding and removing
  * devices as appropriate.
  */
-int dprc_scan_container(struct fsl_mc_device *mc_bus_dev)
+static int dprc_scan_container(struct fsl_mc_device *mc_bus_dev)
 {
 	int error;
 	unsigned int irq_count;
@@ -357,7 +356,6 @@ int dprc_scan_container(struct fsl_mc_device *mc_bus_dev)
 	fsl_mc_cleanup_all_resource_pools(mc_bus_dev);
 	return error;
 }
-EXPORT_SYMBOL_GPL(dprc_scan_container);
 
 /**
  * dprc_irq0_handler - Regular ISR for DPRC interrupt 0

drivers/staging/fsl-mc/bus/fsl-mc-bus.c

@@ -241,8 +241,8 @@ EXPORT_SYMBOL_GPL(fsl_mc_driver_unregister);
 /**
  * fsl_mc_get_root_dprc - function to traverse to the root dprc
  */
-void fsl_mc_get_root_dprc(struct device *dev,
-			  struct device **root_dprc_dev)
+static void fsl_mc_get_root_dprc(struct device *dev,
+				 struct device **root_dprc_dev)
 {
 	if (WARN_ON(!dev)) {
 		*root_dprc_dev = NULL;
@@ -254,7 +254,6 @@ void fsl_mc_get_root_dprc(struct device *dev,
 			*root_dprc_dev = (*root_dprc_dev)->parent;
 	}
 }
-EXPORT_SYMBOL_GPL(fsl_mc_get_root_dprc);
 
 static int get_dprc_attr(struct fsl_mc_io *mc_io,
 			 int container_id, struct dprc_attributes *attr)

drivers/staging/fsl-mc/include/mc-bus.h

@@ -70,11 +70,6 @@ struct fsl_mc_bus {
 #define to_fsl_mc_bus(_mc_dev) \
 	container_of(_mc_dev, struct fsl_mc_bus, mc_dev)
 
-int dprc_scan_container(struct fsl_mc_device *mc_bus_dev);
-
-int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev,
-		      unsigned int *total_irq_count);
-
 struct irq_domain *fsl_mc_msi_create_irq_domain(struct fwnode_handle *fwnode,
 						struct msi_domain_info *info,
 						struct irq_domain *parent);
@@ -91,9 +86,6 @@ void fsl_mc_init_all_resource_pools(struct fsl_mc_device *mc_bus_dev);
 
 void fsl_mc_cleanup_all_resource_pools(struct fsl_mc_device *mc_bus_dev);
 
-void fsl_mc_get_root_dprc(struct device *dev,
-			  struct device **root_dprc_dev);
-
 bool fsl_mc_is_root_dprc(struct device *dev);
 
 extern struct bus_type fsl_mc_bus_type;