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charset=us-ascii Content-Disposition: inline In-Reply-To: <20251206-printf-kunit-printf-attr-v1-1-1682808b51d0@gmail.com> Hi Tamir, kernel test robot noticed the following build warnings: [auto build test WARNING on 559e608c46553c107dbba19dae0854af7b219400] url: https://github.com/intel-lab-lkp/linux/commits/Tamir-Duberstein/printf-add-__printf-attribute/20251206-212115 base: 559e608c46553c107dbba19dae0854af7b219400 patch link: https://lore.kernel.org/r/20251206-printf-kunit-printf-attr-v1-1-1682808b51d0%40gmail.com patch subject: [PATCH] printf: add __printf attribute config: um-randconfig-001-20251207 (https://download.01.org/0day-ci/archive/20251207/202512070856.1syRb0ZL-lkp@intel.com/config) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project a805147ac1ba123916de182babb0831fbb148756) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251207/202512070856.1syRb0ZL-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202512070856.1syRb0ZL-lkp@intel.com/ All warnings (new ones prefixed by >>): >> lib/tests/printf_kunit.c:270:1: warning: GCC requires a function with the '__format__' attribute to be variadic [-Wgcc-compat] 270 | test_hashed(struct kunit *kunittest, const char *fmt, const void *p) | ^ 1 warning generated. Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for OF_GPIO Depends on [n]: GPIOLIB [=y] && OF [=y] && HAS_IOMEM [=n] Selected by [m]: - REGULATOR_RT5133 [=m] && REGULATOR [=y] && I2C [=m] && GPIOLIB [=y] && OF [=y] vim +/__format__ +270 lib/tests/printf_kunit.c 707cc7280f452a lib/test_printf.c Rasmus Villemoes 2015-11-06 268 c23bf7282349cc lib/tests/printf_kunit.c Tamir Duberstein 2025-12-06 269 static void __printf(2, 3) 81a03aa9b88c5d lib/tests/printf_kunit.c Tamir Duberstein 2025-03-07 @270 test_hashed(struct kunit *kunittest, const char *fmt, const void *p) 4d42c44727a062 lib/test_printf.c Andy Shevchenko 2018-12-04 271 { 4d42c44727a062 lib/test_printf.c Andy Shevchenko 2018-12-04 272 char buf[PLAIN_BUF_SIZE]; 4d42c44727a062 lib/test_printf.c Andy Shevchenko 2018-12-04 273 81a03aa9b88c5d lib/tests/printf_kunit.c Tamir Duberstein 2025-03-07 274 plain_hash_to_buffer(kunittest, p, buf, PLAIN_BUF_SIZE); 4d42c44727a062 lib/test_printf.c Andy Shevchenko 2018-12-04 275 4d42c44727a062 lib/test_printf.c Andy Shevchenko 2018-12-04 276 test(buf, fmt, p); 4d42c44727a062 lib/test_printf.c Andy Shevchenko 2018-12-04 277 } 4d42c44727a062 lib/test_printf.c Andy Shevchenko 2018-12-04 278 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki