From: Andy Yan <andyshrk@163.com>
Date: Thu, 8 May 2025 08:47:57 +0000 (+0800)
Subject: drm/gem-framebuffer: log errors when gem size < afbc_size
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2ea42f6e6868bc5a3d53e57a3af5b4d3d88c5dea;p=thirdparty%2Flinux.git

drm/gem-framebuffer: log errors when gem size < afbc_size

Let the user know what went wrong in drm_gem_fb_afbc_init
failure paths.

Signed-off-by: Andy Yan <andyshrk@163.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250508084811.2472877-1-andyshrk@163.com
---

diff --git a/drivers/gpu/drm/drm_gem_framebuffer_helper.c b/drivers/gpu/drm/drm_gem_framebuffer_helper.c
index 6f72e7a0f4275..baf99a68bdb58 100644
--- a/drivers/gpu/drm/drm_gem_framebuffer_helper.c
+++ b/drivers/gpu/drm/drm_gem_framebuffer_helper.c
@@ -607,8 +607,11 @@ int drm_gem_fb_afbc_init(struct drm_device *dev,
 	if (ret < 0)
 		return ret;
 
-	if (objs[0]->size < afbc_fb->afbc_size)
+	if (objs[0]->size < afbc_fb->afbc_size) {
+		drm_dbg_kms(dev, "GEM object size (%zu) smaller than minimum afbc size (%u)\n",
+			    objs[0]->size, afbc_fb->afbc_size);
 		return -EINVAL;
+	}
 
 	return 0;
 }