From: Thomas Zimmermann Date: Tue, 19 Apr 2022 10:04:05 +0000 (+0200) Subject: fbdev: Warn in hot-unplug workaround for framebuffers without device X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b76ecff8317eed4818fdd449bacc81e05534f88b;p=linux.git fbdev: Warn in hot-unplug workaround for framebuffers without device A workaround makes fbdev hot-unplugging work for framebuffers without device. The only user for this feature was offb. As each OF framebuffer now has an associated platform device, the workaround hould no longer be triggered. Update it with a warning and rewrite the comment. Fbdev drivers that trigger the hot-unplug workaround really need to be fixed. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Suggested-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20220419100405.12600-3-tzimmermann@suse.de --- diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c index bc6ed750e9158..84427470367b1 100644 --- a/drivers/video/fbdev/core/fbmem.c +++ b/drivers/video/fbdev/core/fbmem.c @@ -1577,14 +1577,12 @@ static void do_remove_conflicting_framebuffers(struct apertures_struct *a, * allocate the memory range. * * If it's not a platform device, at least print a warning. A - * fix would add code to remove the device from the system. + * fix would add code to remove the device from the system. For + * framebuffers without any Linux device, print a warning as + * well. */ if (!device) { - /* TODO: Represent each OF framebuffer as its own - * device in the device hierarchy. For now, offb - * doesn't have such a device, so unregister the - * framebuffer as before without warning. - */ + pr_warn("fb%d: no device set\n", i); do_unregister_framebuffer(registered_fb[i]); } else if (dev_is_platform(device)) { registered_fb[i]->forced_out = true;