Am 15.03.25 um 13:01 schrieb Yue Haibing:
In file included from <command-line>:
./drivers/gpu/drm/i915/display/intel_fbdev.h: In function 
‘intel_fbdev_framebuffer’:
./drivers/gpu/drm/i915/display/intel_fbdev.h:32:16: error: ‘NULL’ undeclared 
(first use in this function)
    32 |         return NULL;
       |                ^~~~
./drivers/gpu/drm/i915/display/intel_fbdev.h:1:1: note: ‘NULL’ is defined in header 
‘<stddef.h>’; did you forget to ‘#include <stddef.h>’?
   +++ |+#include <stddef.h>
     1 | /* SPDX-License-Identifier: MIT */
./drivers/gpu/drm/i915/display/intel_fbdev.h:32:16: note: each undeclared 
identifier is reported only once for each function it appears in
    32 |         return NULL;
       |                ^~~~

Build fails if CONFIG_DRM_FBDEV_EMULATION is n, add missing header file.

Fixes: 9fa154f40eb6 ("drm/{i915,xe}: Run DRM default client setup")
Signed-off-by: Yue Haibing <yuehaib...@huawei.com>

Acked-by: Thomas Zimmermann <tzimmerm...@suse.de>

---
  drivers/gpu/drm/i915/display/intel_fbdev.h | 2 ++
  1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.h 
b/drivers/gpu/drm/i915/display/intel_fbdev.h
index ca2c8c438f02..89bad3a2b01a 100644
--- a/drivers/gpu/drm/i915/display/intel_fbdev.h
+++ b/drivers/gpu/drm/i915/display/intel_fbdev.h
@@ -6,6 +6,8 @@
  #ifndef __INTEL_FBDEV_H__
  #define __INTEL_FBDEV_H__
+#include <linux/types.h>
+
  struct drm_fb_helper;
  struct drm_fb_helper_surface_size;
  struct drm_i915_private;

--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)

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