Hi Bjorn, I love your patch! Yet something to improve: [auto build test ERROR on robh/for-next] [also build test ERROR on linus/master v5.7-rc5 next-20200514] [cannot apply to agross-msm/qcom/for-next remoteproc/for-next rpmsg/for-next hwspinlock/for-next] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Bjorn-Andersson/remoteproc-qcom-PIL-info-support/20200514-161851 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: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot All errors (new ones prefixed by >>): drivers/remoteproc/qcom_q6v5_wcss.c: In function 'q6v5_wcss_load': >> drivers/remoteproc/qcom_q6v5_wcss.c:433:2: error: implicit declaration of function 'qcom_pil_info_store' [-Werror=implicit-function-declaration] 433 | qcom_pil_info_store("wcnss", wcss->mem_reloc, wcss->mem_size); | ^~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/qcom_pil_info_store +433 drivers/remoteproc/qcom_q6v5_wcss.c 420 421 static int q6v5_wcss_load(struct rproc *rproc, const struct firmware *fw) 422 { 423 struct q6v5_wcss *wcss = rproc->priv; 424 int ret; 425 426 ret = qcom_mdt_load_no_init(wcss->dev, fw, rproc->firmware, 427 0, wcss->mem_region, wcss->mem_phys, 428 wcss->mem_size, &wcss->mem_reloc); 429 if (ret) 430 return ret; 431 432 /* Failures only affect post mortem debugging, so ignore return value */ > 433 qcom_pil_info_store("wcnss", wcss->mem_reloc, wcss->mem_size); 434 435 return ret; 436 } 437 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org