Hi AngeloGioacchino, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on robh/for-next] [also build test WARNING on linus/master v5.13 next-20210701] [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/AngeloGioacchino-Del-Regno/Add-support-for-Core-Power-Reduction-v3-v4-and-Hardened/20210701-185521 base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next config: arm64-allyesconfig (attached as .config) compiler: aarch64-linux-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/2abd8addac7695342f7d6de0c4ceac55dd60ea43 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review AngeloGioacchino-Del-Regno/Add-support-for-Core-Power-Reduction-v3-v4-and-Hardened/20210701-185521 git checkout 2abd8addac7695342f7d6de0c4ceac55dd60ea43 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/soc/qcom/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): drivers/soc/qcom/cpr3.c:355: warning: Function parameter or member 'tdesc' not described in 'cpr_get_ro_factor' drivers/soc/qcom/cpr3.c:355: warning: Function parameter or member 'fnum' not described in 'cpr_get_ro_factor' drivers/soc/qcom/cpr3.c:355: warning: Function parameter or member 'ro_idx' not described in 'cpr_get_ro_factor' drivers/soc/qcom/cpr3.c:558: warning: Function parameter or member 'drv' not described in 'cpr_set_acc' drivers/soc/qcom/cpr3.c:558: warning: Excess function parameter 'thread' description in 'cpr_set_acc' >> drivers/soc/qcom/cpr3.c:581: warning: expecting prototype for cpr_post_voltage(). Prototype was for cpr_pre_voltage() instead drivers/soc/qcom/cpr3.c:1145: warning: Function parameter or member 'ring_osc_factor' not described in 'cpr3_adjust_quot' drivers/soc/qcom/cpr3.c:1145: warning: Function parameter or member 'volt_closed_loop' not described in 'cpr3_adjust_quot' drivers/soc/qcom/cpr3.c:1145: warning: Excess function parameter 'thread' description in 'cpr3_adjust_quot' vim +581 drivers/soc/qcom/cpr3.c 569 570 /** 571 * cpr_post_voltage() - Actions to execute before setting voltage 572 * @thread: Structure holding CPR thread-specific parameters 573 * @dir: Enumeration for voltage change direction 574 * @fuse_level: Fuse corner for mem-acc, if supported. 575 * 576 * Return: Zero for success or negative number on errors. 577 */ 578 static int cpr_pre_voltage(struct cpr_thread *thread, 579 enum voltage_change_dir dir, 580 int fuse_level) > 581 { 582 struct cpr_drv *drv = thread->drv; 583 584 if (drv->desc->cpr_type == CTRL_TYPE_CPR3 && 585 drv->desc->pd_throttle_val) 586 cpr_write(thread, CPR3_REG_PD_THROTTLE, 587 drv->desc->pd_throttle_val); 588 589 if (drv->tcsr && dir == DOWN) 590 cpr_set_acc(drv, fuse_level); 591 592 return 0; 593 } 594 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org