Hi Vegard, kernel test robot noticed the following build warnings: [auto build test WARNING on masahiroy-kbuild/for-next] [also build test WARNING on masahiroy-kbuild/fixes soc/for-next kvmarm/next kvm/queue uml/next krzk-mem-ctrl/for-next bpf-next/master bpf/master linus/master v6.11-rc5 next-20240829] [cannot apply to tmlind-omap/for-next kvm/linux-next uml/fixes] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Vegard-Nossum/kbuild-use-objcopy-to-generate-asm-offsets/20240828-163854 base: https://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git for-next patch link: https://lore.kernel.org/r/20240828083605.3093701-1-vegard.nossum%40oracle.com patch subject: [PATCH] kbuild: use objcopy to generate asm-offsets config: mips-loongson3_defconfig (https://download.01.org/0day-ci/archive/20240830/202408300438.xObK98m5-lkp@xxxxxxxxx/config) compiler: mips64el-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240830/202408300438.xObK98m5-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/202408300438.xObK98m5-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): mips64el-linux-objcopy: /dev/stdout[.data.kbuild]: Illegal seek In file included from include/linux/mm_types.h:18, from include/linux/uio.h:10, from include/linux/socket.h:8, from include/linux/compat.h:15, from arch/mips/kernel/asm-offsets.c:12: include/linux/page-flags-layout.h:15:5: warning: "MAX_NR_ZONES" is not defined, evaluates to 0 [-Wundef] 15 | #if MAX_NR_ZONES < 2 | ^~~~~~~~~~~~ include/linux/page-flags-layout.h:58:19: warning: "LRU_GEN_WIDTH" is not defined, evaluates to 0 [-Wundef] 58 | #if ZONES_WIDTH + LRU_GEN_WIDTH + SECTIONS_WIDTH + NODES_SHIFT \ | ^~~~~~~~~~~~~ include/linux/page-flags-layout.h:59:28: warning: "NR_PAGEFLAGS" is not defined, evaluates to 0 [-Wundef] 59 | <= BITS_PER_LONG - NR_PAGEFLAGS | ^~~~~~~~~~~~ include/linux/page-flags-layout.h:93:19: warning: "LRU_GEN_WIDTH" is not defined, evaluates to 0 [-Wundef] 93 | #if ZONES_WIDTH + LRU_GEN_WIDTH + SECTIONS_WIDTH + NODES_WIDTH + \ | ^~~~~~~~~~~~~ include/linux/page-flags-layout.h:94:64: warning: "NR_PAGEFLAGS" is not defined, evaluates to 0 [-Wundef] 94 | KASAN_TAG_WIDTH + LAST_CPUPID_SHIFT <= BITS_PER_LONG - NR_PAGEFLAGS | ^~~~~~~~~~~~ include/linux/page-flags-layout.h:104:19: warning: "LRU_GEN_WIDTH" is not defined, evaluates to 0 [-Wundef] 104 | #if ZONES_WIDTH + LRU_GEN_WIDTH + SECTIONS_WIDTH + NODES_WIDTH + \ | ^~~~~~~~~~~~~ include/linux/page-flags-layout.h:105:63: warning: "NR_PAGEFLAGS" is not defined, evaluates to 0 [-Wundef] 105 | KASAN_TAG_WIDTH + LAST_CPUPID_WIDTH > BITS_PER_LONG - NR_PAGEFLAGS | ^~~~~~~~~~~~ In file included from include/linux/mm_types.h:5: include/linux/mm_types_task.h:22:34: warning: "SPINLOCK_SIZE" is not defined, evaluates to 0 [-Wundef] 22 | #define ALLOC_SPLIT_PTLOCKS (SPINLOCK_SIZE > BITS_PER_LONG/8) | ^~~~~~~~~~~~~ include/linux/mm_types.h:478:5: note: in expansion of macro 'ALLOC_SPLIT_PTLOCKS' 478 | #if ALLOC_SPLIT_PTLOCKS | ^~~~~~~~~~~~~~~~~~~ In file included from include/linux/dcache.h:14, from include/linux/fs.h:8, from include/linux/compat.h:17: >> include/linux/lockref.h:23:36: warning: "SPINLOCK_SIZE" is not defined, evaluates to 0 [-Wundef] 23 | IS_ENABLED(CONFIG_SMP) && SPINLOCK_SIZE <= 4) | ^~~~~~~~~~~~~ include/linux/lockref.h:27:5: note: in expansion of macro 'USE_CMPXCHG_LOCKREF' 27 | #if USE_CMPXCHG_LOCKREF | ^~~~~~~~~~~~~~~~~~~ In file included from include/linux/gfp.h:7, from include/linux/xarray.h:16, from include/linux/list_lru.h:14, from include/linux/fs.h:13: include/linux/mmzone.h:842:29: error: 'MAX_NR_ZONES' undeclared here (not in a function); did you mean 'MAX_NR_GENS'? 842 | long lowmem_reserve[MAX_NR_ZONES]; | ^~~~~~~~~~~~ | MAX_NR_GENS include/linux/mm_types_task.h:22:34: warning: "SPINLOCK_SIZE" is not defined, evaluates to 0 [-Wundef] 22 | #define ALLOC_SPLIT_PTLOCKS (SPINLOCK_SIZE > BITS_PER_LONG/8) | ^~~~~~~~~~~~~ include/linux/mm.h:2889:5: note: in expansion of macro 'ALLOC_SPLIT_PTLOCKS' 2889 | #if ALLOC_SPLIT_PTLOCKS | ^~~~~~~~~~~~~~~~~~~ In file included from include/linux/swap.h:9, from include/linux/suspend.h:5, from arch/mips/kernel/asm-offsets.c:17: include/linux/memcontrol.h: In function 'mem_cgroup_get_zone_lru_size': >> include/linux/memcontrol.h:914:31: warning: parameter 'lru' set but not used [-Wunused-but-set-parameter] 914 | enum lru_list lru, int zone_idx) | ~~~~~~~~~~~~~~^~~ >> include/linux/memcontrol.h:914:40: warning: parameter 'zone_idx' set but not used [-Wunused-but-set-parameter] 914 | enum lru_list lru, int zone_idx) | ~~~~^~~~~~~~ make[3]: *** [scripts/Makefile.build:244: arch/mips/kernel/asm-offsets.o] Error 1 make[3]: Target 'missing-syscalls' not remade because of errors. make[2]: *** [arch/mips/Makefile:432: archprepare] Error 2 make[2]: Target 'prepare' not remade because of errors. make[1]: *** [Makefile:224: __sub-make] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:224: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. vim +/SPINLOCK_SIZE +23 include/linux/lockref.h 57f4257eae33e0 Peter Zijlstra 2013-11-14 20 57f4257eae33e0 Peter Zijlstra 2013-11-14 21 #define USE_CMPXCHG_LOCKREF \ 57f4257eae33e0 Peter Zijlstra 2013-11-14 22 (IS_ENABLED(CONFIG_ARCH_USE_CMPXCHG_LOCKREF) && \ 597d795a2a786d Kirill A. Shutemov 2013-12-20 @23 IS_ENABLED(CONFIG_SMP) && SPINLOCK_SIZE <= 4) 0f8f2aaaab0b0f Waiman Long 2013-08-28 24 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
