Hi Zijun, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on bluetooth-next/master] [also build test WARNING on linus/master v5.14-rc7 next-20210823] [cannot apply to linux/master bluetooth/master] [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/Zijun-Hu/Bluetooth-btusb-Add-support-using-different-nvm-for-variant-WCN6855-controller/20210823-170111 base: https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git master config: alpha-allyesconfig (attached as .config) compiler: alpha-linux-gcc (GCC) 11.2.0 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/0e2a1544bcc7d3ffac1bd4c27614c8d892933ed3 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Zijun-Hu/Bluetooth-btusb-Add-support-using-different-nvm-for-variant-WCN6855-controller/20210823-170111 git checkout 0e2a1544bcc7d3ffac1bd4c27614c8d892933ed3 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=alpha If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): drivers/bluetooth/btusb.c: In function 'btusb_generate_qca_nvm_name': >> drivers/bluetooth/btusb.c:3342:48: warning: argument to 'sizeof' in 'snprintf' call is the same expression as the destination; did you mean to provide an explicit length? [-Wsizeof-pointer-memaccess] 3342 | snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x%s%s.bin", | ^ drivers/bluetooth/btusb.c:3342:34: error: passing argument 1 of 'snprintf' from incompatible pointer type [-Werror=incompatible-pointer-types] 3342 | snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x%s%s.bin", | ^~~~~~ | | | char ** In file included from include/linux/list.h:9, from include/linux/dmi.h:5, from drivers/bluetooth/btusb.c:9: include/linux/kernel.h:204:20: note: expected 'char *' but argument is of type 'char **' 204 | int snprintf(char *buf, size_t size, const char *fmt, ...); | ~~~~~~^~~ drivers/bluetooth/btusb.c:3347:48: warning: argument to 'sizeof' in 'snprintf' call is the same expression as the destination; did you mean to provide an explicit length? [-Wsizeof-pointer-memaccess] 3347 | snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x%s%s%04x.bin", | ^ drivers/bluetooth/btusb.c:3347:34: error: passing argument 1 of 'snprintf' from incompatible pointer type [-Werror=incompatible-pointer-types] 3347 | snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x%s%s%04x.bin", | ^~~~~~ | | | char ** In file included from include/linux/list.h:9, from include/linux/dmi.h:5, from drivers/bluetooth/btusb.c:9: include/linux/kernel.h:204:20: note: expected 'char *' but argument is of type 'char **' 204 | int snprintf(char *buf, size_t size, const char *fmt, ...); | ~~~~~~^~~ drivers/bluetooth/btusb.c:3354:40: warning: argument to 'sizeof' in 'snprintf' call is the same expression as the destination; did you mean to provide an explicit length? [-Wsizeof-pointer-memaccess] 3354 | snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin", | ^ drivers/bluetooth/btusb.c:3354:26: error: passing argument 1 of 'snprintf' from incompatible pointer type [-Werror=incompatible-pointer-types] 3354 | snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin", | ^~~~~~ | | | char ** In file included from include/linux/list.h:9, from include/linux/dmi.h:5, from drivers/bluetooth/btusb.c:9: include/linux/kernel.h:204:20: note: expected 'char *' but argument is of type 'char **' 204 | int snprintf(char *buf, size_t size, const char *fmt, ...); | ~~~~~~^~~ drivers/bluetooth/btusb.c: In function 'btusb_setup_qca_load_nvm': drivers/bluetooth/btusb.c:3371:53: error: passing argument 1 of 'btusb_generate_qca_nvm_name' from incompatible pointer type [-Werror=incompatible-pointer-types] 3371 | btusb_generate_qca_nvm_name(&fwname, sizeof(fwname), ver, "_", "gf"); | ^~~~~~~ | | | char (*)[64] drivers/bluetooth/btusb.c:3333:48: note: expected 'char **' but argument is of type 'char (*)[64]' 3333 | static void btusb_generate_qca_nvm_name(char **fwname, | ~~~~~~~^~~~~~ drivers/bluetooth/btusb.c:3374:53: error: passing argument 1 of 'btusb_generate_qca_nvm_name' from incompatible pointer type [-Werror=incompatible-pointer-types] 3374 | btusb_generate_qca_nvm_name(&fwname, sizeof(fwname), ver, NULL, NULL); | ^~~~~~~ | | | char (*)[64] drivers/bluetooth/btusb.c:3333:48: note: expected 'char **' but argument is of type 'char (*)[64]' 3333 | static void btusb_generate_qca_nvm_name(char **fwname, | ~~~~~~~^~~~~~ cc1: some warnings being treated as errors vim +3342 drivers/bluetooth/btusb.c 3332 3333 static void btusb_generate_qca_nvm_name(char **fwname, 3334 int max_size, 3335 struct qca_version *ver, 3336 char *separator, 3337 char *vendor) 3338 { 3339 if (((ver->flag >> 8) & 0xff) == QCA_FLAG_MULTI_NVM) { 3340 /* if boardid equal 0, use default nvm without surfix */ 3341 if (le16_to_cpu(ver->board_id) == 0x0) { > 3342 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x%s%s.bin", 3343 le32_to_cpu(ver->rom_version), 3344 separator, 3345 vendor); 3346 } else { 3347 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x%s%s%04x.bin", 3348 le32_to_cpu(ver->rom_version), 3349 separator, 3350 vendor, 3351 le16_to_cpu(ver->board_id)); 3352 } 3353 } else { 3354 snprintf(fwname, sizeof(fwname), "qca/nvm_usb_%08x.bin", 3355 le32_to_cpu(ver->rom_version)); 3356 } 3357 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org