Hi Andrey, FYI, the error/warning still remains. tree: https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android-gs-raviole-5.10-android12-qpr1-d head: 9771767708df4fcf51cd1642e041c804a86e740c commit: f4fb11566b5eb19aa91f674123a365854ab1470f [1559/8858] UPSTREAM: kasan: shadow declarations only for software modes config: s390-randconfig-r044-20220220 (https://download.01.org/0day-ci/archive/20220221/202202210428.m74LAo9b-lkp@xxxxxxxxx/config) compiler: s390-linux-gcc (GCC) 11.2.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/ammarfaizi2/linux-block/commit/f4fb11566b5eb19aa91f674123a365854ab1470f git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android-gs-raviole-5.10-android12-qpr1-d git checkout f4fb11566b5eb19aa91f674123a365854ab1470f # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=s390 SHELL=/bin/bash arch/s390/mm/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All error/warnings (new ones prefixed by >>): In file included from include/linux/kasan.h:15, from arch/s390/mm/kasan_init.c:2: >> arch/s390/include/asm/kasan.h:20:31: error: unknown type name 'pgd_t'; did you mean 'pid_t'? 20 | extern void kasan_copy_shadow(pgd_t *dst); | ^~~~~ | pid_t >> arch/s390/mm/kasan_init.c:419:13: warning: no previous prototype for 'kasan_copy_shadow' [-Wmissing-prototypes] 419 | void __init kasan_copy_shadow(pgd_t *pg_dir) | ^~~~~~~~~~~~~~~~~ vim +20 arch/s390/include/asm/kasan.h 42db5ed86090d8 Vasily Gorbik 2017-11-17 18 42db5ed86090d8 Vasily Gorbik 2017-11-17 19 extern void kasan_early_init(void); 42db5ed86090d8 Vasily Gorbik 2017-11-17 @20 extern void kasan_copy_shadow(pgd_t *dst); 135ff163939294 Vasily Gorbik 2017-11-20 21 extern void kasan_free_early_identity(void); c360c9a238d175 Vasily Gorbik 2020-09-11 22 extern unsigned long kasan_vmax; 42db5ed86090d8 Vasily Gorbik 2017-11-17 23 #else 42db5ed86090d8 Vasily Gorbik 2017-11-17 24 static inline void kasan_early_init(void) { } 42db5ed86090d8 Vasily Gorbik 2017-11-17 25 static inline void kasan_copy_shadow(pgd_t *dst) { } 135ff163939294 Vasily Gorbik 2017-11-20 26 static inline void kasan_free_early_identity(void) { } 42db5ed86090d8 Vasily Gorbik 2017-11-17 27 #endif 42db5ed86090d8 Vasily Gorbik 2017-11-17 28 :::::: The code at line 20 was first introduced by commit :::::: 42db5ed86090d8e57ca08bfd162a10be6320cc49 s390/kasan: add initialization code and enable it :::::: TO: Vasily Gorbik <gor@xxxxxxxxxxxxx> :::::: CC: Martin Schwidefsky <schwidefsky@xxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
