Messages in this thread | | | Date | Fri, 15 Jul 2022 00:32:06 +0800 | From | kernel test robot <> | Subject | [ogabbay:habanalabs-next 1/3] drivers/misc/habanalabs/common/debugfs.c:599:9: warning: function 'hl_engine_data_sprintf' might be a candidate for 'gnu_printf' format attribute |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux.git habanalabs-next head: 0339d759da283025aa01ba72cb7e5b6df9978670 commit: b916f64dace37d374de75823a203749caf30fd7c [1/3] habanalabs: removed seq_file parameter from is_idle asic functions config: i386-randconfig-a001 (https://download.01.org/0day-ci/archive/20220715/202207150057.RUJOxIhW-lkp@intel.com/config) compiler: gcc-11 (Debian 11.3.0-3) 11.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux.git/commit/?id=b916f64dace37d374de75823a203749caf30fd7c git remote add ogabbay https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux.git git fetch --no-tags ogabbay habanalabs-next git checkout b916f64dace37d374de75823a203749caf30fd7c # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/misc/
If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
drivers/misc/habanalabs/common/debugfs.c: In function 'hl_engine_data_sprintf': >> drivers/misc/habanalabs/common/debugfs.c:599:9: warning: function 'hl_engine_data_sprintf' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 599 | str_size = vsnprintf(NULL, 0, fmt, args) + 1; | ^~~~~~~~ drivers/misc/habanalabs/common/debugfs.c:604:17: warning: function 'hl_engine_data_sprintf' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 604 | vsnprintf(e->buf + e->actual_size, str_size, fmt, args); | ^~~~~~~~~
vim +599 drivers/misc/habanalabs/common/debugfs.c
589 590 void hl_engine_data_sprintf(struct engines_data *e, const char *fmt, ...) 591 { 592 va_list args; 593 int str_size; 594 595 va_start(args, fmt); 596 /* Calculate formatted string length. Assuming each string is null terminated, hence 597 * increment result by 1 598 */ > 599 str_size = vsnprintf(NULL, 0, fmt, args) + 1; 600 va_end(args); 601 602 if ((e->actual_size + str_size) < e->allocated_buf_size) { 603 va_start(args, fmt); 604 vsnprintf(e->buf + e->actual_size, str_size, fmt, args); 605 va_end(args); 606 } 607 608 /* Need to update the size even when not updating destination buffer to get the exact size 609 * of all input strings 610 */ 611 e->actual_size += str_size; 612
-- 0-DAY CI Kernel Test Service https://01.org/lkp
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