Hi Baolin, I love your patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v5.7-rc1 next-20200412] [cannot apply to arm-soc/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/Baolin-Wang/Introduce-the-reques... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 8f3d9f354286745c751374f5f1fcafee6b3f3136 config: riscv-allyesconfig (attached as .config) compiler: riscv64-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 GCC_VERSION=9.3.0 make.cross ARCH=riscv If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/mmc/host/sdhci.c: In function 'sdhci_request_atomic': 2076 | if (sdhci_present_error(host, mrq->cmd, true)) { | ^~~~~~~~~~~~~~~~~~~ 2081 | cmd = sdhci_manual_cmd23(host, mrq) ? mrq->sbc : mrq->cmd; | ^~~~~~~~~~~~~~~~~~ | sdhci_auto_cmd12 2090 | if (!sdhci_send_command(host, cmd)) | ^ cc1: some warnings being treated as errors vim +/sdhci_present_error +2076 drivers/mmc/host/sdhci.c 2066 2067 int sdhci_request_atomic(struct mmc_host *mmc, struct mmc_request *mrq) 2068 { 2069 struct sdhci_host *host = mmc_priv(mmc); 2070 struct mmc_command *cmd; 2071 unsigned long flags; 2072 int ret = 0; 2073 2074 spin_lock_irqsave(&host->lock, flags); 2075 2077 sdhci_finish_mrq(host, mrq); 2078 goto out_finish; 2079 } 2080 2082 2083 /* 2084 * The HSQ may send a command in interrupt context without polling 2085 * the busy signaling, which means we should return BUSY if controller 2086 * has not released inhibit bits to allow HSQ trying to send request 2087 * again in non-atomic context. So we should not finish this request 2088 * here. 2089 */ 2091 ret = -EBUSY; 2092 else 2093 sdhci_led_activate(host); 2094 2095 out_finish: 2096 spin_unlock_irqrestore(&host->lock, flags); 2097 return ret; 2098 } 2099 EXPORT_SYMBOL_GPL(sdhci_request_atomic); 2100 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org