Hi Zheng, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 75db7d4fff188725f4adc2de1281daa5b8680603 commit: c8783f92771c891518257c9deb22cd91d4e1a212 [2077/2077] livepatch/core: Revert module_enable_ro and module_disable_ro config: x86_64-randconfig-161-20250402 (https://download.01.org/0day-ci/archive/20250402/202504021840.VgjrPfcw-lkp@i...) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250402/202504021840.VgjrPfcw-lkp@i...) 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@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202504021840.VgjrPfcw-lkp@intel.com/ All warnings (new ones prefixed by >>):

...

kernel/module/strict_rwx.c:36:6: warning: no previous prototype for 'module_disable_ro' [-Wmissing-prototypes] 36 | void module_disable_ro(const struct module *mod) | ^~~~~~~~~~~~~~~~~

vim +/module_disable_ro +36 kernel/module/strict_rwx.c 34 35 #ifdef CONFIG_LIVEPATCH_WO_FTRACE

36 void module_disable_ro(const struct module *mod) 37 { 38 if (!IS_ENABLED(CONFIG_STRICT_MODULE_RWX)) 39 return; 40 #ifdef CONFIG_STRICT_MODULE_RWX 41 if (!rodata_enabled) 42 return; 43 #endif 44 45 module_set_memory(mod, MOD_TEXT, set_memory_rw); 46 module_set_memory(mod, MOD_INIT_TEXT, set_memory_rw); 47 module_set_memory(mod, MOD_RODATA, set_memory_rw); 48 module_set_memory(mod, MOD_INIT_RODATA, set_memory_rw); 49 } 50 #endif /* CONFIG_LIVEPATCH_WO_FTRACE */ 51

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