drm: kill the ->agp_destroy callback

Call drm_pci_agp_destroy directly, there's no point in the
indirection. Long term we want to shuffle this into each driver's
unload logic, but that needs cleared-up drm lifetime rules first.

v2: Add a dummy function for !CONFIG_PCI, spotted my David Herrmann.

v3: Fixup for the coding style police.

Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Cc: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/drm_pci.c

@@ -276,7 +276,7 @@ static void drm_pci_agp_init(struct drm_device *dev)
 	}
 }
 
-static void drm_pci_agp_destroy(struct drm_device *dev)
+void drm_pci_agp_destroy(struct drm_device *dev)
 {
 	if (dev->agp) {
 		arch_phys_wc_del(dev->agp->agp_mtrr);
@@ -293,7 +293,6 @@ static struct drm_bus drm_pci_bus = {
 	.set_busid = drm_pci_set_busid,
 	.set_unique = drm_pci_set_unique,
 	.irq_by_busid = drm_pci_irq_by_busid,
-	.agp_destroy = drm_pci_agp_destroy,
 };
 
 /**
@@ -457,6 +456,7 @@ int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver)
 	return -1;
 }
 
+void drm_pci_agp_destroy(struct drm_device *dev) {}
 #endif
 
 EXPORT_SYMBOL(drm_pci_init);

drivers/gpu/drm/drm_stub.c

@@ -592,8 +592,8 @@ void drm_dev_unregister(struct drm_device *dev)
 	if (dev->driver->unload)
 		dev->driver->unload(dev);
 
-	if (dev->driver->bus->agp_destroy)
-		dev->driver->bus->agp_destroy(dev);
+	if (dev->agp)
+		drm_pci_agp_destroy(dev);
 
 	drm_vblank_cleanup(dev);
 

include/drm/drmP.h

@@ -766,9 +766,6 @@ struct drm_bus {
 	int (*set_unique)(struct drm_device *dev, struct drm_master *master,
 			  struct drm_unique *unique);
 	int (*irq_by_busid)(struct drm_device *dev, struct drm_irq_busid *p);
-	/* hooks that are for PCI */
-	void (*agp_destroy)(struct drm_device *dev);
-
 };
 
 /**
@@ -1684,6 +1681,7 @@ static __inline__ int drm_pci_device_is_agp(struct drm_device *dev)
 
 	return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP);
 }
+void drm_pci_agp_destroy(struct drm_device *dev);
 
 extern int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver);
 extern void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver);