Hi Heiko, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 2dac75696c6da3c848daa118a729827541c89d33 commit: 527618abb92793b9d4dba548d55822dcebd95317 [5045/13299] s390/ctlreg: add struct ctlreg config: s390-buildonly-randconfig-r004-20220731 (https://download.01.org/0day-ci/archive/20231018/202310181800.Bh66q0T1-lkp@xxxxxxxxx/config) compiler: s390-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231018/202310181800.Bh66q0T1-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/202310181800.Bh66q0T1-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from arch/s390/include/asm/lowcore.h:14, from arch/s390/include/asm/current.h:13, from arch/s390/include/asm/preempt.h:5, from include/linux/preempt.h:79, from arch/s390/include/asm/percpu.h:5, from include/linux/irqflags.h:18, from include/linux/rcupdate.h:26, from include/linux/sysctl.h:26, from arch/s390/mm/pgalloc.c:9: In function 'local_ctl_load', inlined from '__crst_table_upgrade' at arch/s390/mm/pgalloc.c:66:3: >> arch/s390/include/asm/ctlreg.h:80:9: warning: array subscript 0 is outside array bounds of 'struct ctlreg[0]' [-Warray-bounds=] 80 | asm volatile( | ^~~ In function '__crst_table_upgrade': cc1: note: source object is likely at address zero vim +80 arch/s390/include/asm/ctlreg.h a0616cdebcfd57 arch/s390/include/asm/ctl_reg.h David Howells 2012-03-28 77 527618abb92793 arch/s390/include/asm/ctlreg.h Heiko Carstens 2023-09-11 78 static __always_inline void local_ctl_load(unsigned int cr, struct ctlreg *reg) dfa33ce1245a4b arch/s390/include/asm/ctlreg.h Heiko Carstens 2023-09-11 79 { dfa33ce1245a4b arch/s390/include/asm/ctlreg.h Heiko Carstens 2023-09-11 @80 asm volatile( dfa33ce1245a4b arch/s390/include/asm/ctlreg.h Heiko Carstens 2023-09-11 81 " lctlg %[cr],%[cr],%[reg]\n" dfa33ce1245a4b arch/s390/include/asm/ctlreg.h Heiko Carstens 2023-09-11 82 : dfa33ce1245a4b arch/s390/include/asm/ctlreg.h Heiko Carstens 2023-09-11 83 : [reg] "Q" (*reg), [cr] "i" (cr) dfa33ce1245a4b arch/s390/include/asm/ctlreg.h Heiko Carstens 2023-09-11 84 : "memory"); dfa33ce1245a4b arch/s390/include/asm/ctlreg.h Heiko Carstens 2023-09-11 85 } dfa33ce1245a4b arch/s390/include/asm/ctlreg.h Heiko Carstens 2023-09-11 86 :::::: The code at line 80 was first introduced by commit :::::: dfa33ce1245a4b88402947fa0a847e179044d2fc s390/ctlreg: add local_ctl_load() and local_ctl_store() :::::: TO: Heiko Carstens <hca@xxxxxxxxxxxxx> :::::: CC: Vasily Gorbik <gor@xxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
