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patch-xf86drm.h
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patch-xf86drm.h
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--- xf86drm.h.orig 2018-03-05 21:06:45 UTC
+++ xf86drm.h
@@ -78,16 +78,26 @@ extern "C" {
#ifdef __OpenBSD__
#define DRM_DIR_NAME "/dev"
-#define DRM_DEV_NAME "%s/drm%d"
-#define DRM_CONTROL_DEV_NAME "%s/drmC%d"
-#define DRM_RENDER_DEV_NAME "%s/drmR%d"
+#define DRM_PRIMARY_MINOR_NAME "drm"
+#define DRM_CONTROL_MINOR_NAME "drmC"
+#define DRM_RENDER_MINOR_NAME "drmR"
#else
#define DRM_DIR_NAME "/dev/dri"
-#define DRM_DEV_NAME "%s/card%d"
-#define DRM_CONTROL_DEV_NAME "%s/controlD%d"
-#define DRM_RENDER_DEV_NAME "%s/renderD%d"
-#define DRM_PROC_NAME "/proc/dri/" /* For backward Linux compatibility */
+#define DRM_PRIMARY_MINOR_NAME "card"
+#define DRM_CONTROL_MINOR_NAME "controlD"
+#define DRM_RENDER_MINOR_NAME "renderD"
#endif
+
+#define DRM_DEV_NAME "%s/" DRM_PRIMARY_MINOR_NAME "%d"
+#define DRM_CONTROL_DEV_NAME "%s/" DRM_CONTROL_MINOR_NAME "%d"
+#define DRM_RENDER_DEV_NAME "%s/" DRM_RENDER_MINOR_NAME "%d"
+
+#define DRM_NODE_NAME_MAX \
+ (sizeof(DRM_DIR_NAME) + \
+ MAX3(sizeof(DRM_PRIMARY_MINOR_NAME), \
+ sizeof(DRM_CONTROL_MINOR_NAME), \
+ sizeof(DRM_RENDER_MINOR_NAME)) \
+ + 3) /* length of the node number */
#define DRM_ERR_NO_DEVICE (-1001)
#define DRM_ERR_NO_ACCESS (-1002)