Hi Lukasz, FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 9123e3a74ec7b934a4a099e98af6a61c2f80bbf5 commit: 1bc138c622959979eb547be2d3bbc6442a5c80b0 PM / EM: add support for other devices than CPUs in Energy Model date: 8 weeks ago config: mips-randconfig-r001-20200817 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project ab9fc8bae805c785066779e76e7846aabad5609e) 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 # install mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu git checkout 1bc138c622959979eb547be2d3bbc6442a5c80b0 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All errors (new ones prefixed by >>): arch/mips/include/asm/sync.h:147:34: note: expanded from macro '__SYNC_loongson3_war' # define __SYNC_loongson3_war (1 << 31) ^ In file included from arch/mips/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:10: In file included from include/linux/time.h:74: In file included from include/linux/time32.h:13: In file included from include/linux/timex.h:65: In file included from arch/mips/include/asm/timex.h:19: In file included from arch/mips/include/asm/cpu-type.h:12: In file included from include/linux/smp.h:15: include/linux/llist.h:222:9: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] return xchg(&head->first, NULL); ^ arch/mips/include/asm/cmpxchg.h:102:7: note: expanded from macro 'xchg' if (!__SYNC_loongson3_war) \ ^ arch/mips/include/asm/sync.h:147:34: note: expanded from macro '__SYNC_loongson3_war' # define __SYNC_loongson3_war (1 << 31) ^ In file included from arch/mips/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:10: In file included from include/crypto/hash.h:11: In file included from include/linux/crypto.h:19: In file included from include/linux/slab.h:15: In file included from include/linux/gfp.h:9: include/linux/topology.h:119:9: error: implicit declaration of function 'cpu_logical_map' [-Werror,-Wimplicit-function-declaration] return cpu_to_node(raw_smp_processor_id()); ^ arch/mips/include/asm/mach-loongson64/topology.h:7:27: note: expanded from macro 'cpu_to_node' #define cpu_to_node(cpu) (cpu_logical_map(cpu) >> 2) ^ In file included from arch/mips/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:10: In file included from include/crypto/hash.h:11: In file included from include/linux/crypto.h:19: In file included from include/linux/slab.h:15: In file included from include/linux/gfp.h:9: include/linux/topology.h:176:9: error: implicit declaration of function 'cpu_logical_map' [-Werror,-Wimplicit-function-declaration] return cpu_to_node(cpu); ^ arch/mips/include/asm/mach-loongson64/topology.h:7:27: note: expanded from macro 'cpu_to_node' #define cpu_to_node(cpu) (cpu_logical_map(cpu) >> 2) ^ In file included from arch/mips/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:15: In file included from include/linux/socket.h:8: In file included from include/linux/uio.h:10: In file included from include/crypto/hash.h:11: In file included from include/linux/crypto.h:19: In file included from include/linux/slab.h:15: In file included from include/linux/gfp.h:9: include/linux/topology.h:210:25: error: implicit declaration of function 'cpu_logical_map' [-Werror,-Wimplicit-function-declaration] return cpumask_of_node(cpu_to_node(cpu)); ^ arch/mips/include/asm/mach-loongson64/topology.h:7:27: note: expanded from macro 'cpu_to_node' #define cpu_to_node(cpu) (cpu_logical_map(cpu) >> 2) ^ In file included from arch/mips/kernel/asm-offsets.c:15: In file included from include/linux/mm.h:32: In file included from include/linux/pgtable.h:6: arch/mips/include/asm/pgtable.h:210:3: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] cmpxchg64(&buddy->pte, 0, _PAGE_GLOBAL); ^ arch/mips/include/asm/cmpxchg.h:220:2: note: expanded from macro 'cmpxchg64' cmpxchg((ptr), (o), (n)); \ ^ arch/mips/include/asm/cmpxchg.h:194:7: note: expanded from macro 'cmpxchg' if (!__SYNC_loongson3_war) \ ^ arch/mips/include/asm/sync.h:147:34: note: expanded from macro '__SYNC_loongson3_war' # define __SYNC_loongson3_war (1 << 31) ^ In file included from arch/mips/kernel/asm-offsets.c:15: In file included from include/linux/mm.h:32: In file included from include/linux/pgtable.h:6: arch/mips/include/asm/pgtable.h:210:3: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] arch/mips/include/asm/cmpxchg.h:220:2: note: expanded from macro 'cmpxchg64' cmpxchg((ptr), (o), (n)); \ ^ arch/mips/include/asm/cmpxchg.h:204:7: note: expanded from macro 'cmpxchg' if (!__SYNC_loongson3_war) \ ^ arch/mips/include/asm/sync.h:147:34: note: expanded from macro '__SYNC_loongson3_war' # define __SYNC_loongson3_war (1 << 31) ^ In file included from arch/mips/kernel/asm-offsets.c:17: In file included from include/linux/suspend.h:5: In file included from include/linux/swap.h:9: In file included from include/linux/memcontrol.h:22: In file included from include/linux/writeback.h:14: In file included from include/linux/blk-cgroup.h:23: In file included from include/linux/blkdev.h:11: In file included from include/linux/genhd.h:36: In file included from include/linux/device.h:16: In file included from include/linux/energy_model.h:10: >> include/linux/sched/topology.h:237:9: error: implicit declaration of >> function 'cpu_logical_map' [-Werror,-Wimplicit-function-declaration] return cpu_to_node(task_cpu(p)); ^ arch/mips/include/asm/mach-loongson64/topology.h:7:27: note: expanded from macro 'cpu_to_node' #define cpu_to_node(cpu) (cpu_logical_map(cpu) >> 2) ^ In file included from arch/mips/kernel/asm-offsets.c:24: include/linux/kvm_host.h:332:9: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] return cmpxchg(&vcpu->mode, IN_GUEST_MODE, EXITING_GUEST_MODE); ^ arch/mips/include/asm/cmpxchg.h:194:7: note: expanded from macro 'cmpxchg' if (!__SYNC_loongson3_war) \ ^ arch/mips/include/asm/sync.h:147:34: note: expanded from macro '__SYNC_loongson3_war' # define __SYNC_loongson3_war (1 << 31) ^ In file included from arch/mips/kernel/asm-offsets.c:24: include/linux/kvm_host.h:332:9: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] arch/mips/include/asm/cmpxchg.h:204:7: note: expanded from macro 'cmpxchg' if (!__SYNC_loongson3_war) \ ^ arch/mips/include/asm/sync.h:147:34: note: expanded from macro '__SYNC_loongson3_war' # define __SYNC_loongson3_war (1 << 31) ^ arch/mips/kernel/asm-offsets.c:26:6: warning: no previous prototype for function 'output_ptreg_defines' [-Wmissing-prototypes] void output_ptreg_defines(void) ^ arch/mips/kernel/asm-offsets.c:26:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void output_ptreg_defines(void) ^ static arch/mips/kernel/asm-offsets.c:78:6: warning: no previous prototype for function 'output_task_defines' [-Wmissing-prototypes] void output_task_defines(void) ^ arch/mips/kernel/asm-offsets.c:78:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void output_task_defines(void) ^ static arch/mips/kernel/asm-offsets.c:93:6: warning: no previous prototype for function 'output_thread_info_defines' [-Wmissing-prototypes] void output_thread_info_defines(void) ^ arch/mips/kernel/asm-offsets.c:93:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void output_thread_info_defines(void) ^ static arch/mips/kernel/asm-offsets.c:110:6: warning: no previous prototype for function 'output_thread_defines' [-Wmissing-prototypes] void output_thread_defines(void) ^ arch/mips/kernel/asm-offsets.c:110:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void output_thread_defines(void) ^ static arch/mips/kernel/asm-offsets.c:181:6: warning: no previous prototype for function 'output_mm_defines' [-Wmissing-prototypes] void output_mm_defines(void) ^ arch/mips/kernel/asm-offsets.c:181:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void output_mm_defines(void) ^ static arch/mips/kernel/asm-offsets.c:242:6: warning: no previous prototype for function 'output_sc_defines' [-Wmissing-prototypes] void output_sc_defines(void) ^ arch/mips/kernel/asm-offsets.c:242:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void output_sc_defines(void) ^ static arch/mips/kernel/asm-offsets.c:255:6: warning: no previous prototype for function 'output_signal_defined' [-Wmissing-prototypes] void output_signal_defined(void) ^ arch/mips/kernel/asm-offsets.c:255:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void output_signal_defined(void) ^ static arch/mips/kernel/asm-offsets.c:322:6: warning: no previous prototype for function 'output_pbe_defines' [-Wmissing-prototypes] void output_pbe_defines(void) ^ arch/mips/kernel/asm-offsets.c:322:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void output_pbe_defines(void) ^ static 22 warnings and 4 errors generated. make[2]: *** [scripts/Makefile.build:114: arch/mips/kernel/asm-offsets.s] Error 1 make[2]: Target 'missing-syscalls' not remade because of errors. make[1]: *** [arch/mips/Makefile:397: archprepare] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:185: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1bc138c622959979eb547be2d3bbc6442a5c80b0 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 1bc138c622959979eb547be2d3bbc6442a5c80b0 vim +/cpu_logical_map +237 include/linux/sched/topology.h 36a0df85d2e85e1 Thara Gopinath 2020-02-21 234 ee6a3d19f15b9b1 Ingo Molnar 2017-02-06 235 static inline int task_node(const struct task_struct *p) ee6a3d19f15b9b1 Ingo Molnar 2017-02-06 236 { ee6a3d19f15b9b1 Ingo Molnar 2017-02-06 @237 return cpu_to_node(task_cpu(p)); ee6a3d19f15b9b1 Ingo Molnar 2017-02-06 238 } ee6a3d19f15b9b1 Ingo Molnar 2017-02-06 239 :::::: The code at line 237 was first introduced by commit :::::: ee6a3d19f15b9b10075481088b8d4537f286d7b4 sched/headers: Remove the <linux/topology.h> include from <linux/sched.h> :::::: TO: Ingo Molnar <mi...@kernel.org> :::::: CC: Ingo Molnar <mi...@kernel.org> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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