Hi Eric, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable head: f30ee81787a5abee6c7c72b0fcc30d428319c449 commit: c717f7a0e6b98a52da146e1c09e4c5d92934ca41 [62/89] arm/kexec: refactor for kernel/Kconfig.kexec config: arm-randconfig-r032-20230703 (https://download.01.org/0day-ci/archive/20230704/202307040131.41upArk4-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce: (https://download.01.org/0day-ci/archive/20230704/202307040131.41upArk4-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/202307040131.41upArk4-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from fs/proc/vmcore.c:22: In file included from include/linux/crash_dump.h:5: >> include/linux/kexec.h:41:2: error: KEXEC_SOURCE_MEMORY_LIMIT not defined 41 | #error KEXEC_SOURCE_MEMORY_LIMIT not defined | ^ >> include/linux/kexec.h:45:2: error: KEXEC_DESTINATION_MEMORY_LIMIT not defined 45 | #error KEXEC_DESTINATION_MEMORY_LIMIT not defined | ^ >> include/linux/kexec.h:49:2: error: KEXEC_CONTROL_MEMORY_LIMIT not defined 49 | #error KEXEC_CONTROL_MEMORY_LIMIT not defined | ^ >> include/linux/kexec.h:57:2: error: KEXEC_CONTROL_PAGE_SIZE not defined 57 | #error KEXEC_CONTROL_PAGE_SIZE not defined | ^ >> include/linux/kexec.h:61:2: error: KEXEC_ARCH not defined 61 | #error KEXEC_ARCH not defined | ^ 5 errors generated. -- In file included from kernel/kexec_core.c:15: >> include/linux/kexec.h:41:2: error: KEXEC_SOURCE_MEMORY_LIMIT not defined 41 | #error KEXEC_SOURCE_MEMORY_LIMIT not defined | ^ >> include/linux/kexec.h:45:2: error: KEXEC_DESTINATION_MEMORY_LIMIT not defined 45 | #error KEXEC_DESTINATION_MEMORY_LIMIT not defined | ^ >> include/linux/kexec.h:49:2: error: KEXEC_CONTROL_MEMORY_LIMIT not defined 49 | #error KEXEC_CONTROL_MEMORY_LIMIT not defined | ^ >> include/linux/kexec.h:57:2: error: KEXEC_CONTROL_PAGE_SIZE not defined 57 | #error KEXEC_CONTROL_PAGE_SIZE not defined | ^ >> include/linux/kexec.h:61:2: error: KEXEC_ARCH not defined 61 | #error KEXEC_ARCH not defined | ^ >> kernel/kexec_core.c:179:15: error: use of undeclared identifier 'KEXEC_DESTINATION_MEMORY_LIMIT' 179 | if (mend >= KEXEC_DESTINATION_MEMORY_LIMIT) | ^ >> kernel/kexec_core.c:388:17: error: use of undeclared identifier 'KEXEC_CONTROL_MEMORY_LIMIT' 388 | if ((epfn >= (KEXEC_CONTROL_MEMORY_LIMIT >> PAGE_SHIFT)) || | ^ kernel/kexec_core.c:454:18: error: use of undeclared identifier 'KEXEC_CONTROL_MEMORY_LIMIT' 454 | if (hole_end > KEXEC_CRASH_CONTROL_MEMORY_LIMIT) | ^ include/linux/kexec.h:65:42: note: expanded from macro 'KEXEC_CRASH_CONTROL_MEMORY_LIMIT' 65 | #define KEXEC_CRASH_CONTROL_MEMORY_LIMIT KEXEC_CONTROL_MEMORY_LIMIT | ^ >> kernel/kexec_core.c:721:6: error: use of undeclared identifier 'KEXEC_SOURCE_MEMORY_LIMIT' 721 | (KEXEC_SOURCE_MEMORY_LIMIT >> PAGE_SHIFT)) { | ^ >> kernel/kexec_core.c:1061:4: error: call to undeclared function 'crash_setup_regs'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 1061 | crash_setup_regs(&fixed_regs, regs); | ^ 10 errors generated. -- In file included from security/security.c:23: In file included from include/linux/ima.h:13: >> include/linux/kexec.h:41:2: error: KEXEC_SOURCE_MEMORY_LIMIT not defined 41 | #error KEXEC_SOURCE_MEMORY_LIMIT not defined | ^ >> include/linux/kexec.h:45:2: error: KEXEC_DESTINATION_MEMORY_LIMIT not defined 45 | #error KEXEC_DESTINATION_MEMORY_LIMIT not defined | ^ >> include/linux/kexec.h:49:2: error: KEXEC_CONTROL_MEMORY_LIMIT not defined 49 | #error KEXEC_CONTROL_MEMORY_LIMIT not defined | ^ >> include/linux/kexec.h:57:2: error: KEXEC_CONTROL_PAGE_SIZE not defined 57 | #error KEXEC_CONTROL_PAGE_SIZE not defined | ^ >> include/linux/kexec.h:61:2: error: KEXEC_ARCH not defined 61 | #error KEXEC_ARCH not defined | ^ In file included from security/security.c:26: include/linux/mman.h:154:9: warning: division by zero is undefined [-Wdivision-by-zero] 154 | _calc_vm_trans(flags, MAP_SYNC, VM_SYNC ) | | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/mman.h:132:21: note: expanded from macro '_calc_vm_trans' 132 | : ((x) & (bit1)) / ((bit1) / (bit2)))) | ^ ~~~~~~~~~~~~~~~~~ 1 warning and 5 errors generated. vim +41 include/linux/kexec.h dc009d92435f99 Eric W. Biederman 2005-06-25 39 dc009d92435f99 Eric W. Biederman 2005-06-25 40 #ifndef KEXEC_SOURCE_MEMORY_LIMIT dc009d92435f99 Eric W. Biederman 2005-06-25 @41 #error KEXEC_SOURCE_MEMORY_LIMIT not defined dc009d92435f99 Eric W. Biederman 2005-06-25 42 #endif dc009d92435f99 Eric W. Biederman 2005-06-25 43 dc009d92435f99 Eric W. Biederman 2005-06-25 44 #ifndef KEXEC_DESTINATION_MEMORY_LIMIT dc009d92435f99 Eric W. Biederman 2005-06-25 @45 #error KEXEC_DESTINATION_MEMORY_LIMIT not defined dc009d92435f99 Eric W. Biederman 2005-06-25 46 #endif dc009d92435f99 Eric W. Biederman 2005-06-25 47 dc009d92435f99 Eric W. Biederman 2005-06-25 48 #ifndef KEXEC_CONTROL_MEMORY_LIMIT dc009d92435f99 Eric W. Biederman 2005-06-25 @49 #error KEXEC_CONTROL_MEMORY_LIMIT not defined dc009d92435f99 Eric W. Biederman 2005-06-25 50 #endif dc009d92435f99 Eric W. Biederman 2005-06-25 51 7e01b5acd88b3f Martin Schwidefsky 2015-04-16 52 #ifndef KEXEC_CONTROL_MEMORY_GFP dc5cccacf4272d Russell King 2016-08-02 53 #define KEXEC_CONTROL_MEMORY_GFP (GFP_KERNEL | __GFP_NORETRY) 7e01b5acd88b3f Martin Schwidefsky 2015-04-16 54 #endif 7e01b5acd88b3f Martin Schwidefsky 2015-04-16 55 163f6876f5c3ff Huang Ying 2008-08-15 56 #ifndef KEXEC_CONTROL_PAGE_SIZE 163f6876f5c3ff Huang Ying 2008-08-15 @57 #error KEXEC_CONTROL_PAGE_SIZE not defined dc009d92435f99 Eric W. Biederman 2005-06-25 58 #endif dc009d92435f99 Eric W. Biederman 2005-06-25 59 dc009d92435f99 Eric W. Biederman 2005-06-25 60 #ifndef KEXEC_ARCH dc009d92435f99 Eric W. Biederman 2005-06-25 @61 #error KEXEC_ARCH not defined dc009d92435f99 Eric W. Biederman 2005-06-25 62 #endif dc009d92435f99 Eric W. Biederman 2005-06-25 63 :::::: The code at line 41 was first introduced by commit :::::: dc009d92435f99498cbc579ce76bf28e837e2c14 [PATCH] kexec: add kexec syscalls :::::: TO: Eric W. Biederman <ebiederm@xxxxxxxxxxxx> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
