Hi Muhammad, kernel test robot noticed the following build warnings: [auto build test WARNING on ath/ath-next] [also build test WARNING on next-20250430] [cannot apply to mani-mhi/mhi-next char-misc/char-misc-testing char-misc/char-misc-next char-misc/char-misc-linus staging/staging-testing staging/staging-next staging/staging-linus usb/usb-testing usb/usb-next usb/usb-linus linus/master v6.15-rc4] [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/Muhammad-Usama-Anjum/bus-mhi-host-don-t-free-bhie-tables-during-suspend-hibernation/20250429-202649 base: https://git.kernel.org/pub/scm/linux/kernel/git/ath/ath.git ath-next patch link: https://lore.kernel.org/r/20250429122351.108684-1-usama.anjum%40collabora.com patch subject: [PATCH v3] bus: mhi: host: don't free bhie tables during suspend/hibernation config: arm64-randconfig-002-20250430 (https://download.01.org/0day-ci/archive/20250501/202505010037.1PMLamw8-lkp@xxxxxxxxx/config) compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project f819f46284f2a79790038e1f6649172789734ae8) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250501/202505010037.1PMLamw8-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/202505010037.1PMLamw8-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/bus/mhi/host/pm.c:1246:6: warning: no previous prototype for function 'mhi_power_down_unprepare_keep_dev' [-Wmissing-prototypes] 1246 | void mhi_power_down_unprepare_keep_dev(struct mhi_controller *mhi_cntrl) | ^ drivers/bus/mhi/host/pm.c:1246:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 1246 | void mhi_power_down_unprepare_keep_dev(struct mhi_controller *mhi_cntrl) | ^ | static 1 warning generated. vim +/mhi_power_down_unprepare_keep_dev +1246 drivers/bus/mhi/host/pm.c 1245 > 1246 void mhi_power_down_unprepare_keep_dev(struct mhi_controller *mhi_cntrl) 1247 { 1248 mhi_cntrl->bhi = NULL; 1249 mhi_cntrl->bhie = NULL; 1250 1251 mhi_deinit_dev_ctxt(mhi_cntrl); 1252 } 1253 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki