Hi Zijun, kernel test robot noticed the following build errors: [auto build test ERROR on 0f7ca6f69354e0c3923bbc28c92d0ecab4d50a3e] url: https://github.com/intel-lab-lkp/linux/commits/Zijun-Hu/of-Fix-API-of_find_node_opts_by_path-finding-OF-device-node-failure/20241216-084408 base: 0f7ca6f69354e0c3923bbc28c92d0ecab4d50a3e patch link: https://lore.kernel.org/r/20241216-of_core_fix-v2-6-e69b8f60da63%40quicinc.com patch subject: [PATCH v2 6/7] of: Fix potential wrong MODALIAS uevent value config: parisc-randconfig-002-20241216 (https://download.01.org/0day-ci/archive/20241216/202412161436.p6lF8p6C-lkp@xxxxxxxxx/config) compiler: hppa-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241216/202412161436.p6lF8p6C-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202412161436.p6lF8p6C-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from include/linux/clk-provider.h:9, from lib/vsprintf.c:23: include/linux/of.h: In function 'of_modalias': >> include/linux/of.h:764:16: error: returning 'int' from a function with return type 'char *' makes pointer from integer without a cast [-Wint-conversion] 764 | return -ENODEV; | ^ lib/vsprintf.c: In function 'va_format': lib/vsprintf.c:1683:9: warning: function 'va_format' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 1683 | buf += vsnprintf(buf, end > buf ? end - buf : 0, va_fmt->fmt, va); | ^~~ -- In file included from lib/logic_pio.c:11: include/linux/of.h: In function 'of_modalias': >> include/linux/of.h:764:16: error: returning 'int' from a function with return type 'char *' makes pointer from integer without a cast [-Wint-conversion] 764 | return -ENODEV; | ^ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for GET_FREE_REGION Depends on [n]: SPARSEMEM [=n] Selected by [y]: - RESOURCE_KUNIT_TEST [=y] && RUNTIME_TESTING_MENU [=y] && KUNIT [=y] vim +764 include/linux/of.h bd69f73f2c81ee Grant Likely 2013-02-10 761 f1f6eae8bdfdfc Zijun Hu 2024-12-16 762 static inline char *of_modalias(const struct device_node *np, ssize_t *lenp) bd7a7ed774afd1 Miquel Raynal 2023-04-04 763 { bd7a7ed774afd1 Miquel Raynal 2023-04-04 @764 return -ENODEV; bd7a7ed774afd1 Miquel Raynal 2023-04-04 765 } bd7a7ed774afd1 Miquel Raynal 2023-04-04 766 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki