[PATCH 6/7] drm/gma500: Implement client-based fbdev emulation

[kernel test robot]

Hi Thomas,

I love your patch! Perhaps something to improve:

[auto build test WARNING on linus/master]
[cannot apply to drm-misc/drm-misc-next v6.2 v6.2-rc8 v6.2-rc7 next-20230223 v6.2 next-20230223]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Thomas-Zimmermann/drm-gma500-Remove-unnecessary-include-statements/20230223-202205
patch link:    https://lore.kernel.org/r/20230223121733.12549-7-tzimmermann%40suse.de
patch subject: [PATCH 6/7] drm/gma500: Implement client-based fbdev emulation
config: i386-randconfig-a004 (https://download.01.org/0day-ci/archive/20230224/202302240250.JspOgN9W-lkp@intel.com/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/d1c984af29e0c5219d353a4772527d233d1c1bcc
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Thomas-Zimmermann/drm-gma500-Remove-unnecessary-include-statements/20230223-202205
        git checkout d1c984af29e0c5219d353a4772527d233d1c1bcc
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/gpu/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp at intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302240250.JspOgN9W-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from drivers/gpu/drm/gma500/backlight.c:14:
>> drivers/gpu/drm/gma500/psb_drv.h:620:6: warning: no previous prototype for function 'psb_fbdev_setup' [-Wmissing-prototypes]
   void psb_fbdev_setup(struct drm_psb_private *dev_priv)
        ^
   drivers/gpu/drm/gma500/psb_drv.h:620:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void psb_fbdev_setup(struct drm_psb_private *dev_priv)
   ^
   static 
   1 warning generated.
--
   In file included from drivers/gpu/drm/gma500/psb_irq.c:15:
>> drivers/gpu/drm/gma500/psb_drv.h:620:6: warning: no previous prototype for function 'psb_fbdev_setup' [-Wmissing-prototypes]
   void psb_fbdev_setup(struct drm_psb_private *dev_priv)
        ^
   drivers/gpu/drm/gma500/psb_drv.h:620:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void psb_fbdev_setup(struct drm_psb_private *dev_priv)
   ^
   static 
   drivers/gpu/drm/gma500/psb_irq.c:35:19: warning: unused function 'gma_pipe_event' [-Wunused-function]
   static inline u32 gma_pipe_event(int pipe)
                     ^
   2 warnings generated.


vim +/psb_fbdev_setup +620 drivers/gpu/drm/gma500/psb_drv.h

   610	
   611	/* framebuffer */
   612	extern struct drm_framebuffer *psb_framebuffer_create(struct drm_device *dev,
   613							      const struct drm_mode_fb_cmd2 *mode_cmd,
   614							      struct drm_gem_object *obj);
   615	
   616	/* fbdev */
   617	#if defined(CONFIG_DRM_FBDEV_EMULATION)
   618	void psb_fbdev_setup(struct drm_psb_private *dev_priv);
   619	#else
 > 620	void psb_fbdev_setup(struct drm_psb_private *dev_priv)
   621	{ }
   622	#endif
   623	

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