File kernel-6-15-fb_probe.patch of Package virtualbox

From: Jiri Slaby <jslaby@suse.cz>
Subject: drm_fb_helper_funcs::fb_probe is gone
References: kernel-6.15 build fix
Patch-mainline: no

drm_fb_helper_funcs::fb_probe was dropped in:
41ff0b424d81 drm/fb-helper: Remove struct drm_fb_helper.fb_probe

This patch is incomplete -- it only makes the code to compile. So it
needs a rewrite similar to:
9fa154f40eb6 drm/{i915,xe}: Run DRM default client setup

---
 src/VBox/Additions/linux/drm/vbox_fb.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/src/VBox/Additions/linux/drm/vbox_fb.c
+++ b/src/VBox/Additions/linux/drm/vbox_fb.c
@@ -56,6 +56,7 @@
 # define VBOX_FBDEV_INFO(_helper) _helper.fbdev
 #endif
 
+#if RTLNX_VER_MAX(6,15,0)
 #if RTLNX_VER_MAX(4,7,0) && !RTLNX_RHEL_MAJ_PREREQ(7,4)
 /**
  * Tell the host about dirty rectangles to update.
@@ -412,9 +413,12 @@ static int vboxfb_create(struct drm_fb_h
 
 	return 0;
 }
+#endif
 
 static struct drm_fb_helper_funcs vbox_fb_helper_funcs = {
+#if RTLNX_VER_MAX(6,15,0)
 	.fb_probe = vboxfb_create,
+#endif
 };
 
 #if RTLNX_VER_MAX(4,3,0) && !RTLNX_RHEL_MAJ_PREREQ(7,3)