Hi Abhishek, kernel test robot noticed the following build warnings: [auto build test WARNING on chrome-platform/for-next] [also build test WARNING on chrome-platform/for-firmware-next usb/usb-testing usb/usb-next usb/usb-linus westeri-thunderbolt/next linus/master v6.12-rc5 next-20241030] [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/Abhishek-Pandit-Subedi/usb-typec-Add-driver-for-Thunderbolt-3-Alternate-Mode/20241031-053304 base: https://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux.git for-next patch link: https://lore.kernel.org/r/20241030142833.v2.1.I3080b036e8de0b9957c57c1c3059db7149c5e549%40changeid patch subject: [PATCH v2 1/7] usb: typec: Add driver for Thunderbolt 3 Alternate Mode config: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20241031/202410311250.ALKPLCqo-lkp@xxxxxxxxx/config) compiler: m68k-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241031/202410311250.ALKPLCqo-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202410311250.ALKPLCqo-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/usb/typec/altmodes/thunderbolt.c:16: warning: cannot understand function prototype: 'enum tbt_state ' Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for GET_FREE_REGION Depends on [n]: SPARSEMEM [=n] Selected by [m]: - RESOURCE_KUNIT_TEST [=m] && RUNTIME_TESTING_MENU [=y] && KUNIT [=m] vim +16 drivers/usb/typec/altmodes/thunderbolt.c 15 > 16 enum tbt_state { 17 TBT_STATE_IDLE, 18 TBT_STATE_SOP_P_ENTER, 19 TBT_STATE_SOP_PP_ENTER, 20 TBT_STATE_ENTER, 21 TBT_STATE_EXIT, 22 TBT_STATE_SOP_PP_EXIT, 23 TBT_STATE_SOP_P_EXIT 24 }; 25 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki