Hi Mikko,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on next-20210111]
[cannot apply to tegra-drm/drm/tegra/for-next tegra/for-next linus/master v5.11-rc3 v5.11-rc2 v5.11-rc1 v5.11-rc3]
[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]

url:    https://github.com/0day-ci/linux/commits/Mikko-Perttunen/Host1x-TegraDRM-UAPI/20210111-210543
base:    ef8b014ee4a1ccd9e751732690a8c7cdeed945e7
config: arm-defconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
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/0day-ci/linux/commit/2c6bdcf3f00bfb0a4399d29b8c066618067560a6
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Mikko-Perttunen/Host1x-TegraDRM-UAPI/20210111-210543
        git checkout 2c6bdcf3f00bfb0a4399d29b8c066618067560a6
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm 

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/tegra/uapi/uapi.c:62:5: warning: no previous prototype for 'close_channel_ctx' [-Wmissing-prototypes]
      62 | int close_channel_ctx(int id, void *p, void *data)
         |     ^~~~~~~~~~~~~~~~~


vim +/close_channel_ctx +62 drivers/gpu/drm/tegra/uapi/uapi.c

    61	
  > 62	int close_channel_ctx(int id, void *p, void *data)
    63	{
    64		struct tegra_drm_channel_ctx *ctx = p;
    65	
    66		tegra_drm_channel_ctx_close(ctx);
    67	
    68		return 0;
    69	}
    70	

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