Hi Sean,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on next-20201113]
[also build test WARNING on v5.10-rc3]
[cannot apply to drm-intel/for-linux-next char-misc/char-misc-testing v5.10-rc3 v5.10-rc2 v5.10-rc1]
[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/Sean-Z-Huang/drm-i915-pxp-Introduce-Intel-PXP-component/20201114-094926
base:    92edc4aef86780a8ad01b092c6d6630bb3cb423d
config: i386-randconfig-s001-20201114 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.3-107-gaf3512a6-dirty
        # https://github.com/0day-ci/linux/commit/b2c5c38f134701a462cb7e880c4cebcd79e1d8c6
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Sean-Z-Huang/drm-i915-pxp-Introduce-Intel-PXP-component/20201114-094926
        git checkout b2c5c38f134701a462cb7e880c4cebcd79e1d8c6
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 

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/i915/pxp/intel_pxp_sm.c:175:5: sparse: sparse: symbol 'pxp_sm_reg_read' was not declared. Should it be static?
>> drivers/gpu/drm/i915/pxp/intel_pxp_sm.c:1146:5: sparse: sparse: symbol 'intel_pxp_sm_destroy_all_sw_sessions' 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