Hi Nathan, FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: ef2e9a563b0cd7965e2a1263125dcbb1c86aa6cc commit: afe956c577b2d5a3d9834e4424587c1ebcf90c4c kbuild: Enable -Wtautological-compare date: 5 months ago config: mips-randconfig-r014-20200913 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project d6fadc49e3d7eb0977bca3ff92bf156bd059fcd4) 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 afe956c577b2d5a3d9834e4424587c1ebcf90c4c # 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 <[email protected]> All warnings (new ones prefixed by >>): clang-12: warning: argument unused during compilation: '-mno-branch-likely' [-Wunused-command-line-argument] clang-12: warning: argument unused during compilation: '-mno-branch-likely' [-Wunused-command-line-argument] In file included from kernel/bounds.c:14: In file included from include/linux/spinlock_types.h:18: In file included from include/linux/lockdep.h:44: In file included from include/linux/debug_locks.h:6: In file included from include/linux/atomic.h:7: >> arch/mips/include/asm/atomic.h:49:1: warning: converting the result of '<<' >> to a boolean always evaluates to true [-Wtautological-constant-compare] ATOMIC_OPS(atomic, int) ^ arch/mips/include/asm/atomic.h:40:9: note: expanded from macro 'ATOMIC_OPS' return cmpxchg(&v->counter, 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 kernel/bounds.c:14: In file included from include/linux/spinlock_types.h:18: In file included from include/linux/lockdep.h:44: In file included from include/linux/debug_locks.h:6: In file included from include/linux/atomic.h:7: >> arch/mips/include/asm/atomic.h:49:1: warning: converting the result of '<<' >> to a boolean always evaluates to true [-Wtautological-constant-compare] arch/mips/include/asm/atomic.h:40:9: note: expanded from macro 'ATOMIC_OPS' return cmpxchg(&v->counter, 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 kernel/bounds.c:14: In file included from include/linux/spinlock_types.h:18: In file included from include/linux/lockdep.h:44: In file included from include/linux/debug_locks.h:6: In file included from include/linux/atomic.h:7: >> arch/mips/include/asm/atomic.h:49:1: warning: converting the result of '<<' >> to a boolean always evaluates to true [-Wtautological-constant-compare] arch/mips/include/asm/atomic.h:45:9: note: expanded from macro 'ATOMIC_OPS' return xchg(&v->counter, n); \ ^ 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 kernel/bounds.c:14: In file included from include/linux/spinlock_types.h:18: In file included from include/linux/lockdep.h:44: In file included from include/linux/debug_locks.h:6: In file included from include/linux/atomic.h:7: arch/mips/include/asm/atomic.h:53:1: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] ATOMIC_OPS(atomic64, s64) ^ arch/mips/include/asm/atomic.h:40:9: note: expanded from macro 'ATOMIC_OPS' return cmpxchg(&v->counter, 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 kernel/bounds.c:14: In file included from include/linux/spinlock_types.h:18: In file included from include/linux/lockdep.h:44: In file included from include/linux/debug_locks.h:6: In file included from include/linux/atomic.h:7: arch/mips/include/asm/atomic.h:53:1: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] arch/mips/include/asm/atomic.h:40:9: note: expanded from macro 'ATOMIC_OPS' return cmpxchg(&v->counter, 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 kernel/bounds.c:14: In file included from include/linux/spinlock_types.h:18: In file included from include/linux/lockdep.h:44: In file included from include/linux/debug_locks.h:6: In file included from include/linux/atomic.h:7: arch/mips/include/asm/atomic.h:53:1: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] arch/mips/include/asm/atomic.h:45:9: note: expanded from macro 'ATOMIC_OPS' return xchg(&v->counter, n); \ ^ 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 kernel/bounds.c:14: In file included from include/linux/spinlock_types.h:18: In file included from include/linux/lockdep.h:44: In file included from include/linux/debug_locks.h:6: In file included from include/linux/atomic.h:7: arch/mips/include/asm/atomic.h:258:1: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] ATOMIC_SIP_OP(atomic, int, subu, ll, sc) ^ arch/mips/include/asm/atomic.h:252:7: note: expanded from macro 'ATOMIC_SIP_OP' 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 kernel/bounds.c:14: In file included from include/linux/spinlock_types.h:18: In file included from include/linux/lockdep.h:44: In file included from include/linux/debug_locks.h:6: In file included from include/linux/atomic.h:7: arch/mips/include/asm/atomic.h:262:1: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] ATOMIC_SIP_OP(atomic64, s64, dsubu, lld, scd) ^ arch/mips/include/asm/atomic.h:252:7: note: expanded from macro 'ATOMIC_SIP_OP' 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 kernel/bounds.c:14: In file included from include/linux/spinlock_types.h:18: In file included from include/linux/lockdep.h:44: >> include/linux/debug_locks.h:17:9: warning: converting the result of '<<' to >> a boolean always evaluates to true [-Wtautological-constant-compare] return xchg(&debug_locks, 0); ^ 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) ^ 9 warnings generated. 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:6: In file included from include/linux/seqlock.h:36: In file included from include/linux/spinlock.h:51: In file included from include/linux/preempt.h:78: In file included from ./arch/mips/include/generated/asm/preempt.h:1: In file included from include/asm-generic/preempt.h:5: In file included from include/linux/thread_info.h:38: In file included from arch/mips/include/asm/thread_info.h:16: In file included from arch/mips/include/asm/processor.h:14: In file included from include/linux/atomic.h:7: >> arch/mips/include/asm/atomic.h:49:1: warning: converting the result of '<<' >> to a boolean always evaluates to true [-Wtautological-constant-compare] ATOMIC_OPS(atomic, int) ^ arch/mips/include/asm/atomic.h:40:9: note: expanded from macro 'ATOMIC_OPS' return cmpxchg(&v->counter, 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:12: In file included from include/linux/compat.h:10: In file included from include/linux/time.h:6: In file included from include/linux/seqlock.h:36: In file included from include/linux/spinlock.h:51: In file included from include/linux/preempt.h:78: In file included from ./arch/mips/include/generated/asm/preempt.h:1: In file included from include/asm-generic/preempt.h:5: In file included from include/linux/thread_info.h:38: In file included from arch/mips/include/asm/thread_info.h:16: In file included from arch/mips/include/asm/processor.h:14: In file included from include/linux/atomic.h:7: >> arch/mips/include/asm/atomic.h:49:1: warning: converting the result of '<<' >> to a boolean always evaluates to true [-Wtautological-constant-compare] arch/mips/include/asm/atomic.h:40:9: note: expanded from macro 'ATOMIC_OPS' return cmpxchg(&v->counter, 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:12: In file included from include/linux/compat.h:10: In file included from include/linux/time.h:6: In file included from include/linux/seqlock.h:36: In file included from include/linux/spinlock.h:51: In file included from include/linux/preempt.h:78: In file included from ./arch/mips/include/generated/asm/preempt.h:1: In file included from include/asm-generic/preempt.h:5: In file included from include/linux/thread_info.h:38: In file included from arch/mips/include/asm/thread_info.h:16: In file included from arch/mips/include/asm/processor.h:14: In file included from include/linux/atomic.h:7: >> arch/mips/include/asm/atomic.h:49:1: warning: converting the result of '<<' >> to a boolean always evaluates to true [-Wtautological-constant-compare] arch/mips/include/asm/atomic.h:45:9: note: expanded from macro 'ATOMIC_OPS' return xchg(&v->counter, n); \ ^ 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:10: In file included from include/linux/time.h:6: In file included from include/linux/seqlock.h:36: In file included from include/linux/spinlock.h:51: In file included from include/linux/preempt.h:78: In file included from ./arch/mips/include/generated/asm/preempt.h:1: In file included from include/asm-generic/preempt.h:5: In file included from include/linux/thread_info.h:38: In file included from arch/mips/include/asm/thread_info.h:16: In file included from arch/mips/include/asm/processor.h:14: In file included from include/linux/atomic.h:7: arch/mips/include/asm/atomic.h:53:1: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] ATOMIC_OPS(atomic64, s64) ^ arch/mips/include/asm/atomic.h:40:9: note: expanded from macro 'ATOMIC_OPS' return cmpxchg(&v->counter, 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:12: In file included from include/linux/compat.h:10: In file included from include/linux/time.h:6: In file included from include/linux/seqlock.h:36: In file included from include/linux/spinlock.h:51: In file included from include/linux/preempt.h:78: In file included from ./arch/mips/include/generated/asm/preempt.h:1: In file included from include/asm-generic/preempt.h:5: In file included from include/linux/thread_info.h:38: In file included from arch/mips/include/asm/thread_info.h:16: In file included from arch/mips/include/asm/processor.h:14: In file included from include/linux/atomic.h:7: arch/mips/include/asm/atomic.h:53:1: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] arch/mips/include/asm/atomic.h:40:9: note: expanded from macro 'ATOMIC_OPS' return cmpxchg(&v->counter, 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:12: In file included from include/linux/compat.h:10: In file included from include/linux/time.h:6: In file included from include/linux/seqlock.h:36: In file included from include/linux/spinlock.h:51: In file included from include/linux/preempt.h:78: In file included from ./arch/mips/include/generated/asm/preempt.h:1: In file included from include/asm-generic/preempt.h:5: In file included from include/linux/thread_info.h:38: In file included from arch/mips/include/asm/thread_info.h:16: In file included from arch/mips/include/asm/processor.h:14: In file included from include/linux/atomic.h:7: arch/mips/include/asm/atomic.h:53:1: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] arch/mips/include/asm/atomic.h:45:9: note: expanded from macro 'ATOMIC_OPS' return xchg(&v->counter, n); \ ^ 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:10: In file included from include/linux/time.h:6: In file included from include/linux/seqlock.h:36: In file included from include/linux/spinlock.h:51: In file included from include/linux/preempt.h:78: In file included from ./arch/mips/include/generated/asm/preempt.h:1: In file included from include/asm-generic/preempt.h:5: In file included from include/linux/thread_info.h:38: In file included from arch/mips/include/asm/thread_info.h:16: In file included from arch/mips/include/asm/processor.h:14: In file included from include/linux/atomic.h:7: arch/mips/include/asm/atomic.h:258:1: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] ATOMIC_SIP_OP(atomic, int, subu, ll, sc) ^ arch/mips/include/asm/atomic.h:252:7: note: expanded from macro 'ATOMIC_SIP_OP' 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:10: In file included from include/linux/time.h:6: In file included from include/linux/seqlock.h:36: In file included from include/linux/spinlock.h:51: In file included from include/linux/preempt.h:78: In file included from ./arch/mips/include/generated/asm/preempt.h:1: In file included from include/asm-generic/preempt.h:5: In file included from include/linux/thread_info.h:38: In file included from arch/mips/include/asm/thread_info.h:16: In file included from arch/mips/include/asm/processor.h:14: In file included from include/linux/atomic.h:7: arch/mips/include/asm/atomic.h:262:1: warning: converting the result of '<<' to a boolean always evaluates to true [-Wtautological-constant-compare] ATOMIC_SIP_OP(atomic64, s64, dsubu, lld, scd) ^ arch/mips/include/asm/atomic.h:252:7: note: expanded from macro 'ATOMIC_SIP_OP' 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:10: In file included from include/linux/time.h:6: In file included from include/linux/seqlock.h:36: In file included from include/linux/spinlock.h:83: In file included from include/linux/spinlock_types.h:18: In file included from include/linux/lockdep.h:44: >> include/linux/debug_locks.h:17:9: warning: converting the result of '<<' to >> a boolean always evaluates to true [-Wtautological-constant-compare] return xchg(&debug_locks, 0); ^ 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: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:95: >> 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:95: >> 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: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:138:6: warning: no previous prototype for function 'output_thread_fpu_defines' [-Wmissing-prototypes] void output_thread_fpu_defines(void) ^ arch/mips/kernel/asm-offsets.c:138:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void output_thread_fpu_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:334:6: warning: no previous prototype for function 'output_pm_defines' [-Wmissing-prototypes] void output_pm_defines(void) ^ arch/mips/kernel/asm-offsets.c:334:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void output_pm_defines(void) ^ static arch/mips/kernel/asm-offsets.c:348:6: warning: no previous prototype for function 'output_kvm_defines' [-Wmissing-prototypes] void output_kvm_defines(void) ^ arch/mips/kernel/asm-offsets.c:348:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void output_kvm_defines(void) ^ static 24 warnings and 3 errors generated. make[2]: *** [scripts/Makefile.build:101: arch/mips/kernel/asm-offsets.s] Error 1 make[2]: Target 'missing-syscalls' not remade because of errors. make[1]: *** [arch/mips/Makefile:414: archprepare] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:180: 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=afe956c577b2d5a3d9834e4424587c1ebcf90c4c git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout afe956c577b2d5a3d9834e4424587c1ebcf90c4c vim +49 arch/mips/include/asm/atomic.h ^1da177e4c3f41 include/asm-mips/atomic.h Linus Torvalds 2005-04-16 47 1da7bce8591d58 arch/mips/include/asm/atomic.h Paul Burton 2019-10-01 48 #define ATOMIC_INIT(i) { (i) } 1da7bce8591d58 arch/mips/include/asm/atomic.h Paul Burton 2019-10-01 @49 ATOMIC_OPS(atomic, int) ^1da177e4c3f41 include/asm-mips/atomic.h Linus Torvalds 2005-04-16 50 :::::: The code at line 49 was first introduced by commit :::::: 1da7bce8591d58bf2a442b0324659af7390401c2 MIPS: atomic: Deduplicate 32b & 64b read, set, xchg, cmpxchg :::::: TO: Paul Burton <[email protected]> :::::: CC: Paul Burton <[email protected]> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
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