DEBUG: drm: printf unique at different stages

evelikov · Apr 3, 2018 · c2bc545 · c2bc545
1 parent befdaaf
commit c2bc545
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Showing 2 changed files with 6 additions and 0 deletions.
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
@@ -123,6 +123,7 @@ int drm_getunique(struct drm_device *dev, void *data,
 	u->unique_len = master->unique_len;
 	mutex_unlock(&master->dev->master_mutex);
 
+	DRM_ERROR("%s: unique %s\n", __func__, u->unique);
 	return 0;
 }
 
@@ -143,6 +144,8 @@ static int drm_set_busid(struct drm_device *dev, struct drm_file *file_priv)
 	if (master->unique != NULL)
 		drm_unset_busid(dev, master);
 
+	DRM_ERROR("%s: dev %p, is_pci %d\n", __func__, dev->dev,
+		  (dev->dev) ? dev_is_pci(dev->dev) : 0);
 	if (dev->dev && dev_is_pci(dev->dev)) {
 		ret = drm_pci_set_busid(dev, master);
 		if (ret) {
@@ -155,6 +158,7 @@ static int drm_set_busid(struct drm_device *dev, struct drm_file *file_priv)
 		if (master->unique)
 			master->unique_len = strlen(dev->unique);
 	}
+	DRM_ERROR("%s: unique %s\n", __func__, master->unique);
 
 	return 0;
 }

diff --git a/drivers/gpu/drm/virtio/virtgpu_drm_bus.c b/drivers/gpu/drm/virtio/virtgpu_drm_bus.c
@@ -56,6 +56,7 @@ int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev)
 	dev = drm_dev_alloc(driver, &vdev->dev);
 	if (IS_ERR(dev))
 		return PTR_ERR(dev);
+	DRM_ERROR("%s: #1 dev->unique %s\n", __func__, dev->unique);
 	vdev->priv = dev;
 
 	if (strcmp(vdev->dev.parent->bus->name, "pci") == 0) {
@@ -75,6 +76,7 @@ int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev)
 	if (ret)
 		goto err_free;
 
+	DRM_ERROR("%s: #2 dev->unique %s\n", __func__, dev->unique);
 	return 0;
 
 err_free: