[linux-next:master 10747/11059] drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_optc.c:139:6: warning: no previous prototype for function 'optc1_set_vupdate_keepout'

* [linux-next:master 10747/11059] drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_optc.c:139:6: warning: no previous prototype for function 'optc1_set_vupdate_keepout'
@ 2021-04-08 20:54 ` kernel test robot
  0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2021-04-08 20:54 UTC (permalink / raw)
  To: Leo Li
  Cc: kbuild-all, clang-built-linux, Linux Memory Management List,
	Alex Deucher, Harry Wentland

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   6145d80cfc62e3ed8f16ff584d6287e6d88b82b9
commit: 225e300745b5bbec1405f0ba67a13739061be3a4 [10747/11059] drm/amd/display: Move vupdate keepout programming from DCN20 to DCN10
config: x86_64-randconfig-a013-20210408 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 56ea2e2fdd691136d5e6631fa0e447173694b82c)
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
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=225e300745b5bbec1405f0ba67a13739061be3a4
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 225e300745b5bbec1405f0ba67a13739061be3a4
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_optc.c:139:6: warning: no previous prototype for function 'optc1_set_vupdate_keepout' [-Wmissing-prototypes]
   void optc1_set_vupdate_keepout(struct timing_generator *optc,
        ^
   drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_optc.c:139:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void optc1_set_vupdate_keepout(struct timing_generator *optc,
   ^
   static 
   drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_optc.c:879:6: warning: no previous prototype for function 'optc1_setup_manual_trigger' [-Wmissing-prototypes]
   void optc1_setup_manual_trigger(struct timing_generator *optc)
        ^
   drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_optc.c:879:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void optc1_setup_manual_trigger(struct timing_generator *optc)
   ^
   static 
   drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_optc.c:897:6: warning: no previous prototype for function 'optc1_program_manual_trigger' [-Wmissing-prototypes]
   void optc1_program_manual_trigger(struct timing_generator *optc)
        ^
   drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_optc.c:897:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void optc1_program_manual_trigger(struct timing_generator *optc)
   ^
   static 
   3 warnings generated.

vim +/optc1_set_vupdate_keepout +139 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_optc.c

   133	
   134	/**
   135	 * Vupdate keepout can be set to a window to block the update lock for that pipe from changing.
   136	 * Start offset begins with vstartup and goes for x number of clocks,
   137	 * end offset starts from end of vupdate to x number of clocks.
   138	 */
 > 139	void optc1_set_vupdate_keepout(struct timing_generator *optc,
   140				       struct vupdate_keepout_params *params)
   141	{
   142		struct optc *optc1 = DCN10TG_FROM_TG(optc);
   143	
   144		REG_SET_3(OTG_VUPDATE_KEEPOUT, 0,
   145			  MASTER_UPDATE_LOCK_VUPDATE_KEEPOUT_START_OFFSET, params->start_offset,
   146			  MASTER_UPDATE_LOCK_VUPDATE_KEEPOUT_END_OFFSET, params->end_offset,
   147			  OTG_MASTER_UPDATE_LOCK_VUPDATE_KEEPOUT_EN, params->enable);
   148	}
   149	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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