Hi Rick, Thank you for the patch! Yet something to improve:
[auto build test ERROR on linus/master] [also build test ERROR on v4.18 next-20180815] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Rick-Edgecombe/KASLR-feature-to-randomize-each-loadable-module/20180816-120750 config: um-x86_64_defconfig (attached as .config) compiler: gcc-7 (Debian 7.3.0-16) 7.3.0 reproduce: # save the attached .config to linux build tree make ARCH=um SUBARCH=x86_64 Note: the linux-review/Rick-Edgecombe/KASLR-feature-to-randomize-each-loadable-module/20180816-120750 HEAD 7eff11788897c8579f53bc7043f854794dbad25f builds fine. It only hurts bisectibility. All error/warnings (new ones prefixed by >>): arch/x86/um/../kernel/module.c: In function 'kaslr_randomize_each_module': >> arch/x86/um/../kernel/module.c:53:9: error: implicit declaration of function >> 'kaslr_enabled' [-Werror=implicit-function-declaration] return kaslr_enabled() ^~~~~~~~~~~~~ arch/x86/um/../kernel/module.c: In function 'get_modules_rand_len': >> arch/x86/um/../kernel/module.c:68:9: error: 'MODULES_RAND_LEN' undeclared >> (first use in this function); did you mean 'MODULE_NAME_LEN'? return MODULES_RAND_LEN; ^~~~~~~~~~~~~~~~ MODULE_NAME_LEN arch/x86/um/../kernel/module.c:68:9: note: each undeclared identifier is reported only once for each function it appears in >> arch/x86/um/../kernel/module.c:69:1: warning: control reaches end of >> non-void function [-Wreturn-type] } ^ cc1: some warnings being treated as errors vim +/kaslr_enabled +53 arch/x86/um/../kernel/module.c 50 51 static inline int kaslr_randomize_each_module(void) 52 { > 53 return kaslr_enabled() 54 && IS_ENABLED(CONFIG_RANDOMIZE_BASE) 55 && IS_ENABLED(CONFIG_X86_64); 56 } 57 58 static inline int kaslr_randomize_base(void) 59 { 60 return kaslr_enabled() 61 && IS_ENABLED(CONFIG_RANDOMIZE_BASE) 62 && !IS_ENABLED(CONFIG_X86_64); 63 } 64 65 #ifdef CONFIG_X86_64 66 static inline const unsigned long get_modules_rand_len(void) 67 { > 68 return MODULES_RAND_LEN; > 69 } 70 #else 71 static inline const unsigned long get_modules_rand_len(void) 72 { 73 BUILD_BUG(); 74 return 0; 75 } 76 #endif 77 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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