tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: df9574a57d02b265322e77fb8628d4d33641dda9 commit: 46e281044468bb35b00581f099d195702fdec1ec [7343/8016] kmsan: enable on s390 config: s390-randconfig-r123-20240627 (https://download.01.org/0day-ci/archive/20240627/202406272033.KejtfLkw-lkp@xxxxxxxxx/config) compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 326ba38a991250a8587a399a260b0f7af2c9166a) reproduce: (https://download.01.org/0day-ci/archive/20240627/202406272033.KejtfLkw-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/202406272033.KejtfLkw-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> mm/kmsan/instrumentation.c:318:42: sparse: sparse: Using plain integer as NULL pointer mm/kmsan/instrumentation.c:319:69: sparse: sparse: Using plain integer as NULL pointer -- >> mm/kmsan/hooks.c:269:14: sparse: sparse: cast removes address space '__user' of expression >> mm/kmsan/hooks.c:271:75: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected void const *user_addr @@ got void [noderef] __user *to @@ mm/kmsan/hooks.c:271:75: sparse: expected void const *user_addr mm/kmsan/hooks.c:271:75: sparse: got void [noderef] __user *to mm/kmsan/hooks.c:280:50: sparse: sparse: cast removes address space '__user' of expression >> mm/kmsan/hooks.c:306:59: sparse: sparse: Using plain integer as NULL pointer mm/kmsan/hooks.c:319:79: sparse: sparse: Using plain integer as NULL pointer mm/kmsan/hooks.c:325:79: sparse: sparse: Using plain integer as NULL pointer mm/kmsan/hooks.c:421:78: sparse: sparse: Using plain integer as NULL pointer vim +318 mm/kmsan/instrumentation.c f80be4571b19b9 Alexander Potapenko 2022-09-15 307 f80be4571b19b9 Alexander Potapenko 2022-09-15 308 /* f80be4571b19b9 Alexander Potapenko 2022-09-15 309 * Report that an uninitialized value with the given origin was used in a way f80be4571b19b9 Alexander Potapenko 2022-09-15 310 * that constituted undefined behavior. f80be4571b19b9 Alexander Potapenko 2022-09-15 311 */ 62a9bbf2e999b9 Alexander Potapenko 2023-01-12 312 void __msan_warning(u32 origin); f80be4571b19b9 Alexander Potapenko 2022-09-15 313 void __msan_warning(u32 origin) f80be4571b19b9 Alexander Potapenko 2022-09-15 314 { f80be4571b19b9 Alexander Potapenko 2022-09-15 315 if (!kmsan_enabled || kmsan_in_runtime()) f80be4571b19b9 Alexander Potapenko 2022-09-15 316 return; f80be4571b19b9 Alexander Potapenko 2022-09-15 317 kmsan_enter_runtime(); f80be4571b19b9 Alexander Potapenko 2022-09-15 @318 kmsan_report(origin, /*address*/ 0, /*size*/ 0, f80be4571b19b9 Alexander Potapenko 2022-09-15 319 /*off_first*/ 0, /*off_last*/ 0, /*user_addr*/ 0, f80be4571b19b9 Alexander Potapenko 2022-09-15 320 REASON_ANY); f80be4571b19b9 Alexander Potapenko 2022-09-15 321 kmsan_leave_runtime(); f80be4571b19b9 Alexander Potapenko 2022-09-15 322 } f80be4571b19b9 Alexander Potapenko 2022-09-15 323 EXPORT_SYMBOL(__msan_warning); f80be4571b19b9 Alexander Potapenko 2022-09-15 324 :::::: The code at line 318 was first introduced by commit :::::: f80be4571b19b9fd8dd1528cd2a2f123aff51f70 kmsan: add KMSAN runtime core :::::: TO: Alexander Potapenko <glider@xxxxxxxxxx> :::::: CC: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
