Hi Thomas,

I love your patch! Perhaps something to improve:

[auto build test WARNING on next-20210630]
[cannot apply to linus/master v5.13 v5.13-rc7 v5.13-rc6 v5.13]
[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/Thomas-Zimmermann/drm-bochs-Move-to-tiny-and-simplify/20210630-220827
base:    2e0046650f0f192a84a1793f0dc2f0991ed9a3e4
config: i386-randconfig-s001-20210630 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.3-341-g8af24329-dirty
        # https://github.com/0day-ci/linux/commit/b6c460f7ad814dab0a55db296162fecc5828bc87
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Thomas-Zimmermann/drm-bochs-Move-to-tiny-and-simplify/20210630-220827
        git checkout b6c460f7ad814dab0a55db296162fecc5828bc87
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash drivers/gpu/drm/tiny/

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


sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/tiny/bochs.c:542:36: sparse: sparse: symbol 'bochs_mode_funcs' was not declared. Should it be static?

Please review and possibly fold the followup patch.

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