Hi Kiwoong, kernel test robot noticed the following build warnings: [auto build test WARNING on v6.4-rc3] [also build test WARNING on linus/master next-20230523] [cannot apply to jejb-scsi/for-next mkp-scsi/for-next] [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/Kiwoong-Kim/ufs-poll-HCS-UCRDY-before-issuing-a-UIC-command/20230523-215413 base: 44c026a73be8038f03dbdeef028b642880cf1511 patch link: https://lore.kernel.org/r/c511c7f03ce77a604aa5211c3ffac96022c3ee40.1684822284.git.kwmad.kim%40samsung.com patch subject: [PATCH v1 1/3] ufs: make __ufshcd_send_uic_cmd not wrapped by host_lock config: x86_64-allmodconfig (https://download.01.org/0day-ci/archive/20230524/202305240017.qlNZOZVe-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-12) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/c3fdde6dc3c766e3141c3ed43ae136ceb345c1c1 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Kiwoong-Kim/ufs-poll-HCS-UCRDY-before-issuing-a-UIC-command/20230523-215413 git checkout c3fdde6dc3c766e3141c3ed43ae136ceb345c1c1 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 olddefconfig make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/ufs/core/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202305240017.qlNZOZVe-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): drivers/ufs/core/ufshcd.c: In function 'ufshcd_send_uic_cmd': >> drivers/ufs/core/ufshcd.c:2479:23: warning: unused variable 'flags' [-Wunused-variable] 2479 | unsigned long flags; | ^~~~~ vim +/flags +2479 drivers/ufs/core/ufshcd.c 6ccf44fe4cd7c4 drivers/scsi/ufs/ufshcd.c Seungwon Jeon 2013-06-26 2468 6ccf44fe4cd7c4 drivers/scsi/ufs/ufshcd.c Seungwon Jeon 2013-06-26 2469 /** 6ccf44fe4cd7c4 drivers/scsi/ufs/ufshcd.c Seungwon Jeon 2013-06-26 2470 * ufshcd_send_uic_cmd - Send UIC commands and retrieve the result 6ccf44fe4cd7c4 drivers/scsi/ufs/ufshcd.c Seungwon Jeon 2013-06-26 2471 * @hba: per adapter instance 6ccf44fe4cd7c4 drivers/scsi/ufs/ufshcd.c Seungwon Jeon 2013-06-26 2472 * @uic_cmd: UIC command 6ccf44fe4cd7c4 drivers/scsi/ufs/ufshcd.c Seungwon Jeon 2013-06-26 2473 * 6ccf44fe4cd7c4 drivers/scsi/ufs/ufshcd.c Seungwon Jeon 2013-06-26 2474 * Returns 0 only if success. 6ccf44fe4cd7c4 drivers/scsi/ufs/ufshcd.c Seungwon Jeon 2013-06-26 2475 */ e77044c5a8422e drivers/scsi/ufs/ufshcd.c Avri Altman 2018-10-07 2476 int ufshcd_send_uic_cmd(struct ufs_hba *hba, struct uic_command *uic_cmd) 6ccf44fe4cd7c4 drivers/scsi/ufs/ufshcd.c Seungwon Jeon 2013-06-26 2477 { 6ccf44fe4cd7c4 drivers/scsi/ufs/ufshcd.c Seungwon Jeon 2013-06-26 2478 int ret; 57d104c153d3d6 drivers/scsi/ufs/ufshcd.c Subhash Jadavani 2014-09-25 @2479 unsigned long flags; 6ccf44fe4cd7c4 drivers/scsi/ufs/ufshcd.c Seungwon Jeon 2013-06-26 2480 a22bcfdbf10b41 drivers/scsi/ufs/ufshcd.c jongmin jeong 2021-10-18 2481 if (hba->quirks & UFSHCD_QUIRK_BROKEN_UIC_CMD) a22bcfdbf10b41 drivers/scsi/ufs/ufshcd.c jongmin jeong 2021-10-18 2482 return 0; a22bcfdbf10b41 drivers/scsi/ufs/ufshcd.c jongmin jeong 2021-10-18 2483 1ab27c9cf8b63d drivers/scsi/ufs/ufshcd.c Sahitya Tummala 2014-09-25 2484 ufshcd_hold(hba, false); 6ccf44fe4cd7c4 drivers/scsi/ufs/ufshcd.c Seungwon Jeon 2013-06-26 2485 mutex_lock(&hba->uic_cmd_mutex); cad2e03d860779 drivers/scsi/ufs/ufshcd.c Yaniv Gardi 2015-03-31 2486 ufshcd_add_delay_before_dme_cmd(hba); cad2e03d860779 drivers/scsi/ufs/ufshcd.c Yaniv Gardi 2015-03-31 2487 d75f7fe495cf57 drivers/scsi/ufs/ufshcd.c Yaniv Gardi 2016-02-01 2488 ret = __ufshcd_send_uic_cmd(hba, uic_cmd, true); 57d104c153d3d6 drivers/scsi/ufs/ufshcd.c Subhash Jadavani 2014-09-25 2489 if (!ret) 57d104c153d3d6 drivers/scsi/ufs/ufshcd.c Subhash Jadavani 2014-09-25 2490 ret = ufshcd_wait_for_uic_cmd(hba, uic_cmd); 57d104c153d3d6 drivers/scsi/ufs/ufshcd.c Subhash Jadavani 2014-09-25 2491 6ccf44fe4cd7c4 drivers/scsi/ufs/ufshcd.c Seungwon Jeon 2013-06-26 2492 mutex_unlock(&hba->uic_cmd_mutex); 6ccf44fe4cd7c4 drivers/scsi/ufs/ufshcd.c Seungwon Jeon 2013-06-26 2493 1ab27c9cf8b63d drivers/scsi/ufs/ufshcd.c Sahitya Tummala 2014-09-25 2494 ufshcd_release(hba); 6ccf44fe4cd7c4 drivers/scsi/ufs/ufshcd.c Seungwon Jeon 2013-06-26 2495 return ret; 6ccf44fe4cd7c4 drivers/scsi/ufs/ufshcd.c Seungwon Jeon 2013-06-26 2496 } 6ccf44fe4cd7c4 drivers/scsi/ufs/ufshcd.c Seungwon Jeon 2013-06-26 2497 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki