drm: Give irq_by_busid drm_legacy_ prefix

It's the only ioctl handler purely for legacy drivers that didn't have
this yet.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201008142927.2819321-1-daniel.vetter@ffwll.ch

drivers/gpu/drm/drm_internal.h

@@ -53,14 +53,14 @@ void drm_lastclose(struct drm_device *dev);
 #ifdef CONFIG_PCI
 
 /* drm_pci.c */
-int drm_irq_by_busid(struct drm_device *dev, void *data,
+int drm_legacy_irq_by_busid(struct drm_device *dev, void *data,
 			    struct drm_file *file_priv);
 void drm_pci_agp_destroy(struct drm_device *dev);
 int drm_pci_set_busid(struct drm_device *dev, struct drm_master *master);
 
 #else
 
-static inline int drm_irq_by_busid(struct drm_device *dev, void *data,
+static inline int drm_legacy_irq_by_busid(struct drm_device *dev, void *data,
 					  struct drm_file *file_priv)
 {
 	return -EINVAL;

drivers/gpu/drm/drm_ioctl.c

@@ -578,7 +578,7 @@ static const struct drm_ioctl_desc drm_ioctls[] = {
 	DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, DRM_RENDER_ALLOW),
 	DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0),
 	DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0),
-	DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY),
+	DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_legacy_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY),
 
 	DRM_LEGACY_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_legacy_getmap_ioctl, 0),
 

drivers/gpu/drm/drm_pci.c

@@ -139,7 +139,7 @@ static int drm_pci_irq_by_busid(struct drm_device *dev, struct drm_irq_busid *p)
 }
 
 /**
- * drm_irq_by_busid - Get interrupt from bus ID
+ * drm_legacy_irq_by_busid - Get interrupt from bus ID
  * @dev: DRM device
  * @data: IOCTL parameter pointing to a drm_irq_busid structure
  * @file_priv: DRM file private.
@@ -150,7 +150,7 @@ static int drm_pci_irq_by_busid(struct drm_device *dev, struct drm_irq_busid *p)
  *
  * Return: 0 on success or a negative error code on failure.
  */
-int drm_irq_by_busid(struct drm_device *dev, void *data,
+int drm_legacy_irq_by_busid(struct drm_device *dev, void *data,
 			    struct drm_file *file_priv)
 {
 	struct drm_irq_busid *p = data;