Hi Nam, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on staging/staging-testing] url: https://github.com/intel-lab-lkp/linux/commits/Nam-Cao/staging-rtl8723bs-remove-dead-functions/20220819-165905 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git 8379cf83fe6d57a12952de6dcaf7a7fbd7b364fc config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20220819/202208192018.BfgiZyOY-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-5) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/3b86aa03519d904d916cb62a1113c0c5549496cb git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Nam-Cao/staging-rtl8723bs-remove-dead-functions/20220819-165905 git checkout 3b86aa03519d904d916cb62a1113c0c5549496cb # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/staging/rtl8723bs/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/staging/rtl8723bs/core/rtw_odm.c:13:27: warning: 'odm_comp_str' defined but not used [-Wunused-const-variable=] 13 | static const char * const odm_comp_str[] = { | ^~~~~~~~~~~~ vim +/odm_comp_str +13 drivers/staging/rtl8723bs/core/rtw_odm.c 554c0a3abf216c Hans de Goede 2017-03-29 12 05031914cb8f5b Tom Gardi 2017-08-12 @13 static const char * const odm_comp_str[] = { 554c0a3abf216c Hans de Goede 2017-03-29 14 /* BIT0 */"ODM_COMP_DIG", 554c0a3abf216c Hans de Goede 2017-03-29 15 /* BIT1 */"ODM_COMP_RA_MASK", 554c0a3abf216c Hans de Goede 2017-03-29 16 /* BIT2 */"ODM_COMP_DYNAMIC_TXPWR", 554c0a3abf216c Hans de Goede 2017-03-29 17 /* BIT3 */"ODM_COMP_FA_CNT", 554c0a3abf216c Hans de Goede 2017-03-29 18 /* BIT4 */"ODM_COMP_RSSI_MONITOR", 554c0a3abf216c Hans de Goede 2017-03-29 19 /* BIT5 */"ODM_COMP_CCK_PD", 554c0a3abf216c Hans de Goede 2017-03-29 20 /* BIT6 */"ODM_COMP_ANT_DIV", 554c0a3abf216c Hans de Goede 2017-03-29 21 /* BIT7 */"ODM_COMP_PWR_SAVE", 554c0a3abf216c Hans de Goede 2017-03-29 22 /* BIT8 */"ODM_COMP_PWR_TRAIN", 554c0a3abf216c Hans de Goede 2017-03-29 23 /* BIT9 */"ODM_COMP_RATE_ADAPTIVE", 554c0a3abf216c Hans de Goede 2017-03-29 24 /* BIT10 */"ODM_COMP_PATH_DIV", 554c0a3abf216c Hans de Goede 2017-03-29 25 /* BIT11 */"ODM_COMP_PSD", 554c0a3abf216c Hans de Goede 2017-03-29 26 /* BIT12 */"ODM_COMP_DYNAMIC_PRICCA", 554c0a3abf216c Hans de Goede 2017-03-29 27 /* BIT13 */"ODM_COMP_RXHP", 554c0a3abf216c Hans de Goede 2017-03-29 28 /* BIT14 */"ODM_COMP_MP", 554c0a3abf216c Hans de Goede 2017-03-29 29 /* BIT15 */"ODM_COMP_DYNAMIC_ATC", 554c0a3abf216c Hans de Goede 2017-03-29 30 /* BIT16 */"ODM_COMP_EDCA_TURBO", 554c0a3abf216c Hans de Goede 2017-03-29 31 /* BIT17 */"ODM_COMP_EARLY_MODE", 554c0a3abf216c Hans de Goede 2017-03-29 32 /* BIT18 */NULL, 554c0a3abf216c Hans de Goede 2017-03-29 33 /* BIT19 */NULL, 554c0a3abf216c Hans de Goede 2017-03-29 34 /* BIT20 */NULL, 554c0a3abf216c Hans de Goede 2017-03-29 35 /* BIT21 */NULL, 554c0a3abf216c Hans de Goede 2017-03-29 36 /* BIT22 */NULL, 554c0a3abf216c Hans de Goede 2017-03-29 37 /* BIT23 */NULL, 554c0a3abf216c Hans de Goede 2017-03-29 38 /* BIT24 */"ODM_COMP_TX_PWR_TRACK", 554c0a3abf216c Hans de Goede 2017-03-29 39 /* BIT25 */"ODM_COMP_RX_GAIN_TRACK", 554c0a3abf216c Hans de Goede 2017-03-29 40 /* BIT26 */"ODM_COMP_CALIBRATION", 554c0a3abf216c Hans de Goede 2017-03-29 41 /* BIT27 */NULL, 554c0a3abf216c Hans de Goede 2017-03-29 42 /* BIT28 */NULL, 554c0a3abf216c Hans de Goede 2017-03-29 43 /* BIT29 */NULL, 554c0a3abf216c Hans de Goede 2017-03-29 44 /* BIT30 */"ODM_COMP_COMMON", 554c0a3abf216c Hans de Goede 2017-03-29 45 /* BIT31 */"ODM_COMP_INIT", 554c0a3abf216c Hans de Goede 2017-03-29 46 }; 554c0a3abf216c Hans de Goede 2017-03-29 47 -- 0-DAY CI Kernel Test Service https://01.org/lkp