tree: https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-5.14.y-rt-rebase head: 0eead4e5a60cb716ec911a552787a69332cf6943 commit: 5a78a76f0b525fc1a5c07b86810bd8842357e1d3 [13/245] console: add write_atomic interface config: i386-randconfig-r021-20210816 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 44d0a99a12ec7ead4d2f5ef649ba05b40f6d463d) 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 # https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git/com... git remote add linux-rt-devel https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git git fetch --no-tags linux-rt-devel linux-5.14.y-rt-rebase git checkout 5a78a76f0b525fc1a5c07b86810bd8842357e1d3 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): static inline void __kcsan_check_access(const volatile void *ptr, size_t size, ^ include/linux/kcsan-checks.h:149:10: warning: unused parameter 'type' [-Wunused-parameter] int type) { } ^ include/linux/kcsan-checks.h:158:42: warning: unused parameter 'n' [-Wunused-parameter] static inline void kcsan_atomic_next(int n) { } ^ include/linux/kcsan-checks.h:159:56: warning: unused parameter 'mask' [-Wunused-parameter] static inline void kcsan_set_access_mask(unsigned long mask) { } ^ include/linux/kcsan-checks.h:164:48: warning: unused parameter 'ptr' [-Wunused-parameter] kcsan_begin_scoped_access(const volatile void *ptr, size_t size, int type, ^ include/linux/kcsan-checks.h:164:60: warning: unused parameter 'size' [-Wunused-parameter] kcsan_begin_scoped_access(const volatile void *ptr, size_t size, int type, ^ include/linux/kcsan-checks.h:164:70: warning: unused parameter 'type' [-Wunused-parameter] kcsan_begin_scoped_access(const volatile void *ptr, size_t size, int type, ^ include/linux/kcsan-checks.h:166:72: warning: unused parameter 'sa' [-Wunused-parameter] static inline void kcsan_end_scoped_access(struct kcsan_scoped_access *sa) { } ^ include/linux/kcsan-checks.h:184:60: warning: unused parameter 'ptr' [-Wunused-parameter] static inline void kcsan_check_access(const volatile void *ptr, size_t size, ^ include/linux/kcsan-checks.h:184:72: warning: unused parameter 'size' [-Wunused-parameter] static inline void kcsan_check_access(const volatile void *ptr, size_t size, ^ include/linux/kcsan-checks.h:185:15: warning: unused parameter 'type' [-Wunused-parameter] int type) { } ^ In file included from drivers/gpu/drm/i915/i915_drv.c:30: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:15: In file included from include/linux/bitops.h:32: In file included from arch/x86/include/asm/bitops.h:17: arch/x86/include/asm/alternative.h:90:63: warning: unused parameter 'mod' [-Wunused-parameter] static inline void alternatives_smp_module_add(struct module *mod, char *name, ^ arch/x86/include/asm/alternative.h:90:74: warning: unused parameter 'name' [-Wunused-parameter] static inline void alternatives_smp_module_add(struct module *mod, char *name, ^ arch/x86/include/asm/alternative.h:91:19: warning: unused parameter 'locks' [-Wunused-parameter] void *locks, void *locks_end, ^ arch/x86/include/asm/alternative.h:91:32: warning: unused parameter 'locks_end' [-Wunused-parameter] void *locks, void *locks_end, ^ arch/x86/include/asm/alternative.h:92:19: warning: unused parameter 'text' [-Wunused-parameter] void *text, void *text_end) {} ^ arch/x86/include/asm/alternative.h:92:31: warning: unused parameter 'text_end' [-Wunused-parameter] void *text, void *text_end) {} ^ arch/x86/include/asm/alternative.h:93:63: warning: unused parameter 'mod' [-Wunused-parameter] static inline void alternatives_smp_module_del(struct module *mod) {} ^ arch/x86/include/asm/alternative.h:95:52: warning: unused parameter 'start' [-Wunused-parameter] static inline int alternatives_text_reserved(void *start, void *end) ^ arch/x86/include/asm/alternative.h:95:65: warning: unused parameter 'end' [-Wunused-parameter] static inline int alternatives_text_reserved(void *start, void *end) ^ In file included from drivers/gpu/drm/i915/i915_drv.c:30: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:15: In file included from include/linux/bitops.h:32: In file included from arch/x86/include/asm/bitops.h:391: In file included from include/asm-generic/bitops/instrumented-atomic.h:14: include/linux/instrumented.h:116:38: warning: unused parameter 'to' [-Wunused-parameter] instrument_copy_to_user(void __user *to, const void *from, unsigned long n) ^ include/linux/instrumented.h:133:62: warning: unused parameter 'from' [-Wunused-parameter] instrument_copy_from_user(const void *to, const void __user *from, unsigned long n) ^ In file included from drivers/gpu/drm/i915/i915_drv.c:30: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:15: In file included from include/linux/bitops.h:32: In file included from arch/x86/include/asm/bitops.h:395: In file included from include/asm-generic/bitops/le.h:7: In file included from arch/x86/include/uapi/asm/byteorder.h:5: In file included from include/linux/byteorder/little_endian.h:11: include/linux/byteorder/generic.h:195:16: warning: comparison of integers of different signs: 'int' and 'size_t' (aka 'unsigned int') [-Wsign-compare] for (i = 0; i < len; i++) ~ ^ ~~~ include/linux/byteorder/generic.h:203:16: warning: comparison of integers of different signs: 'int' and 'size_t' (aka 'unsigned int') [-Wsign-compare] for (i = 0; i < len; i++) ~ ^ ~~~ In file included from drivers/gpu/drm/i915/i915_drv.c:30: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:17: In file included from include/linux/kobject.h:19: In file included from include/linux/list.h:9: In file included from include/linux/kernel.h:19: static inline bool kgdb_roundup_delay(unsigned int cpu) ^ In file included from drivers/gpu/drm/i915/i915_drv.c:30: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:17: In file included from include/linux/kobject.h:19: In file included from include/linux/list.h:9: include/linux/kernel.h:323:48: warning: unused parameter 'fmt' [-Wunused-parameter] void ____trace_printk_check_format(const char *fmt, ...) ^ In file included from drivers/gpu/drm/i915/i915_drv.c:30: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:17: In file included from include/linux/kobject.h:20: In file included from include/linux/sysfs.h:16: In file included from include/linux/kernfs.h:12: In file included from include/linux/mutex.h:14: In file included from arch/x86/include/asm/current.h:6: In file included from arch/x86/include/asm/percpu.h:390: In file included from include/asm-generic/percpu.h:7: include/linux/percpu-defs.h:313:57: warning: unused parameter 'op' [-Wunused-parameter] static inline void __this_cpu_preempt_check(const char *op) { } ^ In file included from drivers/gpu/drm/i915/i915_drv.c:30: In file included from include/linux/acpi.h:13: In file included from include/linux/irqdomain.h:35: In file included from include/linux/of.h:17: In file included from include/linux/kobject.h:20: In file included from include/linux/sysfs.h:16: In file included from include/linux/kernfs.h:12: In file included from include/linux/mutex.h:17: In file included from include/linux/lockdep.h:14: In file included from include/linux/smp.h:13: include/linux/cpumask.h:105:51: warning: unused parameter 'cpu' [-Wunused-parameter] static inline void cpu_max_bits_warn(unsigned int cpu, unsigned int bits) ^ include/linux/cpumask.h:105:69: warning: unused parameter 'bits' [-Wunused-parameter] static inline void cpu_max_bits_warn(unsigned int cpu, unsigned int bits) ^ include/linux/cpumask.h:121:64: warning: unused parameter 'srcp' [-Wunused-parameter] static inline unsigned int cpumask_first(const struct cpumask *srcp) ^ include/linux/cpumask.h:126:63: warning: unused parameter 'srcp' [-Wunused-parameter] static inline unsigned int cpumask_last(const struct cpumask *srcp) ^ include/linux/cpumask.h:132:70: warning: unused parameter 'srcp' [-Wunused-parameter] static inline unsigned int cpumask_next(int n, const struct cpumask *srcp) ^ include/linux/cpumask.h:137:75: warning: unused parameter 'srcp' [-Wunused-parameter] static inline unsigned int cpumask_next_zero(int n, const struct cpumask *srcp) ^ include/linux/cpumask.h:143:32: warning: unused parameter 'srcp' [-Wunused-parameter] const struct cpumask *srcp, ^ include/linux/cpumask.h:144:32: warning: unused parameter 'andp' [-Wunused-parameter] const struct cpumask *andp) ^ include/linux/cpumask.h:149:75: warning: unused parameter 'mask' [-Wunused-parameter] static inline unsigned int cpumask_next_wrap(int n, const struct cpumask *mask, ^ include/linux/cpumask.h:150:15: warning: unused parameter 'start' [-Wunused-parameter] int start, bool wrap) ^ include/linux/cpumask.h:157:66: warning: unused parameter 'mask' [-Wunused-parameter] static inline unsigned int cpumask_any_but(const struct cpumask *mask, ^ include/linux/cpumask.h:158:22: warning: unused parameter 'cpu' [-Wunused-parameter] unsigned int cpu) ^ include/linux/cpumask.h:163:62: warning: unused parameter 'i' [-Wunused-parameter] static inline unsigned int cpumask_local_spread(unsigned int i, int node) ^ include/linux/cpumask.h:163:69: warning: unused parameter 'node' [-Wunused-parameter] static inline unsigned int cpumask_local_spread(unsigned int i, int node) ^ include/linux/cpumask.h:738:53: warning: unused parameter 'mask' [-Wunused-parameter] static inline bool alloc_cpumask_var(cpumask_var_t *mask, gfp_t flags) ^ include/linux/cpumask.h:738:65: warning: unused parameter 'flags' [-Wunused-parameter] static inline bool alloc_cpumask_var(cpumask_var_t *mask, gfp_t flags) ^ include/linux/cpumask.h:743:58: warning: unused parameter 'mask' [-Wunused-parameter] static inline bool alloc_cpumask_var_node(cpumask_var_t *mask, gfp_t flags, ^ include/linux/cpumask.h:743:70: warning: unused parameter 'flags' [-Wunused-parameter] static inline bool alloc_cpumask_var_node(cpumask_var_t *mask, gfp_t flags, ^ include/linux/cpumask.h:744:12: warning: unused parameter 'node' [-Wunused-parameter] int node) ^ include/linux/cpumask.h:749:66: warning: unused parameter 'flags' [-Wunused-parameter] static inline bool zalloc_cpumask_var(cpumask_var_t *mask, gfp_t flags) ^ include/linux/cpumask.h:755:71: warning: unused parameter 'flags' [-Wunused-parameter] static inline bool zalloc_cpumask_var_node(cpumask_var_t *mask, gfp_t flags, ^ include/linux/cpumask.h:756:12: warning: unused parameter 'node' [-Wunused-parameter] int node) -- ^~~~~~~~~~~~ include/linux/ftrace.h:831:38: note: expanded from macro 'CALLER_ADDR2' #define CALLER_ADDR2 ((unsigned long)ftrace_return_address(2)) ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/ftrace.h:823:36: note: expanded from macro 'ftrace_return_address' # define ftrace_return_address(n) __builtin_return_address(n) ^~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/gpu/drm/i915/i915_drv.c:39: In file included from include/linux/vga_switcheroo.h:34: In file included from include/linux/fb.h:5: In file included from include/linux/kgdb.h:19: In file included from include/linux/kprobes.h:32: arch/x86/include/asm/kprobes.h:125:56: warning: unused parameter 'regs' [-Wunused-parameter] static inline int kprobe_debug_handler(struct pt_regs *regs) { return 0; } ^ In file included from drivers/gpu/drm/i915/i915_drv.c:39: In file included from include/linux/vga_switcheroo.h:34: In file included from include/linux/fb.h:5: In file included from include/linux/kgdb.h:19: include/linux/kprobes.h:417:56: warning: unused parameter 'regs' [-Wunused-parameter] static inline int kprobe_fault_handler(struct pt_regs *regs, int trapnr) ^ include/linux/kprobes.h:417:66: warning: unused parameter 'trapnr' [-Wunused-parameter] static inline int kprobe_fault_handler(struct pt_regs *regs, int trapnr) ^ include/linux/kprobes.h:421:47: warning: unused parameter 'addr' [-Wunused-parameter] static inline struct kprobe *get_kprobe(void *addr) ^ include/linux/kprobes.h:429:50: warning: unused parameter 'p' [-Wunused-parameter] static inline int register_kprobe(struct kprobe *p) ^ include/linux/kprobes.h:433:52: warning: unused parameter 'kps' [-Wunused-parameter] static inline int register_kprobes(struct kprobe **kps, int num) ^ include/linux/kprobes.h:433:61: warning: unused parameter 'num' [-Wunused-parameter] static inline int register_kprobes(struct kprobe **kps, int num) ^ include/linux/kprobes.h:437:53: warning: unused parameter 'p' [-Wunused-parameter] static inline void unregister_kprobe(struct kprobe *p) ^ include/linux/kprobes.h:440:55: warning: unused parameter 'kps' [-Wunused-parameter] static inline void unregister_kprobes(struct kprobe **kps, int num) ^ include/linux/kprobes.h:440:64: warning: unused parameter 'num' [-Wunused-parameter] static inline void unregister_kprobes(struct kprobe **kps, int num) ^ include/linux/kprobes.h:443:56: warning: unused parameter 'rp' [-Wunused-parameter] static inline int register_kretprobe(struct kretprobe *rp) ^ include/linux/kprobes.h:447:58: warning: unused parameter 'rps' [-Wunused-parameter] static inline int register_kretprobes(struct kretprobe **rps, int num) ^ include/linux/kprobes.h:447:67: warning: unused parameter 'num' [-Wunused-parameter] static inline int register_kretprobes(struct kretprobe **rps, int num) ^ include/linux/kprobes.h:451:59: warning: unused parameter 'rp' [-Wunused-parameter] static inline void unregister_kretprobe(struct kretprobe *rp) ^ include/linux/kprobes.h:454:61: warning: unused parameter 'rps' [-Wunused-parameter] static inline void unregister_kretprobes(struct kretprobe **rps, int num) ^ include/linux/kprobes.h:454:70: warning: unused parameter 'num' [-Wunused-parameter] static inline void unregister_kretprobes(struct kretprobe **rps, int num) ^ include/linux/kprobes.h:457:58: warning: unused parameter 'tk' [-Wunused-parameter] static inline void kprobe_flush_task(struct task_struct *tk) ^ include/linux/kprobes.h:463:49: warning: unused parameter 'kp' [-Wunused-parameter] static inline int disable_kprobe(struct kprobe *kp) ^ include/linux/kprobes.h:467:48: warning: unused parameter 'kp' [-Wunused-parameter] static inline int enable_kprobe(struct kprobe *kp) ^ include/linux/kprobes.h:472:58: warning: unused parameter 'addr' [-Wunused-parameter] static inline bool within_kprobe_blacklist(unsigned long addr) ^ include/linux/kprobes.h:476:51: warning: unused parameter 'symnum' [-Wunused-parameter] static inline int kprobe_get_kallsym(unsigned int symnum, unsigned long *value, ^ include/linux/kprobes.h:476:74: warning: unused parameter 'value' [-Wunused-parameter] static inline int kprobe_get_kallsym(unsigned int symnum, unsigned long *value, ^ include/linux/kprobes.h:477:16: warning: unused parameter 'type' [-Wunused-parameter] char *type, char *sym) ^ include/linux/kprobes.h:477:28: warning: unused parameter 'sym' [-Wunused-parameter] char *type, char *sym) ^ include/linux/kprobes.h:492:54: warning: unused parameter 'addr' [-Wunused-parameter] static inline bool is_kprobe_insn_slot(unsigned long addr) ^ include/linux/kprobes.h:498:57: warning: unused parameter 'addr' [-Wunused-parameter] static inline bool is_kprobe_optinsn_slot(unsigned long addr) ^ In file included from drivers/gpu/drm/i915/i915_drv.c:39: In file included from include/linux/vga_switcheroo.h:34: In file included from include/linux/fb.h:5: include/linux/kgdb.h:368:43: warning: unused parameter 'msg' [-Wunused-parameter] static inline void kgdb_panic(const char *msg) {} ^ static inline void kgdb_roundup_cpu(unsigned int cpu) {} ^ In file included from drivers/gpu/drm/i915/i915_drv.c:39: In file included from include/linux/vga_switcheroo.h:34: In file included from include/linux/fb.h:6: In file included from include/uapi/linux/fb.h:6: In file included from include/linux/i2c.h:18: In file included from include/linux/regulator/consumer.h:35: 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:13: In file included from include/linux/cgroup.h:26: include/linux/kernel_stat.h:86:37: warning: unused parameter 'cpu' [-Wunused-parameter] enum cpu_usage_stat usage, int cpu) ^ In file included from drivers/gpu/drm/i915/i915_drv.c:39: In file included from include/linux/vga_switcheroo.h:34: In file included from include/linux/fb.h:6: In file included from include/uapi/linux/fb.h:6: In file included from include/linux/i2c.h:18: In file included from include/linux/regulator/consumer.h:35: 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:13: In file included from include/linux/cgroup.h:28: In file included from include/linux/cgroup-defs.h:20: include/linux/u64_stats_sync.h:121:58: warning: unused parameter 'syncp' [-Wunused-parameter] static inline void u64_stats_init(struct u64_stats_sync *syncp) ^ include/linux/u64_stats_sync.h:126:66: warning: unused parameter 'syncp' [-Wunused-parameter] static inline void u64_stats_update_begin(struct u64_stats_sync *syncp) ^ include/linux/u64_stats_sync.h:133:64: warning: unused parameter 'syncp' [-Wunused-parameter] static inline void u64_stats_update_end(struct u64_stats_sync *syncp) ^ include/linux/u64_stats_sync.h:141:55: warning: unused parameter 'syncp' [-Wunused-parameter] u64_stats_update_begin_irqsave(struct u64_stats_sync *syncp) ^ include/linux/u64_stats_sync.h:153:56: warning: unused parameter 'syncp' [-Wunused-parameter] u64_stats_update_end_irqrestore(struct u64_stats_sync *syncp, ^ include/linux/u64_stats_sync.h:154:19: warning: unused parameter 'flags' [-Wunused-parameter] unsigned long flags) ^ include/linux/u64_stats_sync.h:162:81: warning: unused parameter 'syncp' [-Wunused-parameter] static inline unsigned int __u64_stats_fetch_begin(const struct u64_stats_sync *syncp) ^ include/linux/u64_stats_sync.h:179:73: warning: unused parameter 'syncp' [-Wunused-parameter] static inline bool __u64_stats_fetch_retry(const struct u64_stats_sync *syncp, ^ include/linux/u64_stats_sync.h:180:20: warning: unused parameter 'start' [-Wunused-parameter] unsigned int start) ^ In file included from drivers/gpu/drm/i915/i915_drv.c:39: In file included from include/linux/vga_switcheroo.h:34: In file included from include/linux/fb.h:6: In file included from include/uapi/linux/fb.h:6: In file included from include/linux/i2c.h:18: In file included from include/linux/regulator/consumer.h:35: 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:13: In file included from include/linux/cgroup.h:28: In file included from include/linux/cgroup-defs.h:22: In file included from include/linux/bpf-cgroup.h:5: In file included from include/linux/bpf.h:22: include/linux/sched/mm.h:103:59: warning: unused parameter 'mm' [-Wunused-parameter] static inline void mm_update_next_owner(struct mm_struct *mm) ^ include/linux/sched/mm.h:321:37: warning: unused parameter 'memcg' [-Wunused-parameter] set_active_memcg(struct mem_cgroup *memcg) ^ In file included from drivers/gpu/drm/i915/i915_drv.c:39: In file included from include/linux/vga_switcheroo.h:34: In file included from include/linux/fb.h:6: In file included from include/uapi/linux/fb.h:6: In file included from include/linux/i2c.h:18: In file included from include/linux/regulator/consumer.h:35: 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:13: In file included from include/linux/cgroup.h:28: In file included from include/linux/cgroup-defs.h:22: In file included from include/linux/bpf-cgroup.h:5: include/linux/bpf.h:740:61: warning: unused parameter 'prog' [-Wunused-parameter] static inline int bpf_trampoline_link_prog(struct bpf_prog *prog, ^ include/linux/bpf.h:741:32: warning: unused parameter 'tr' [-Wunused-parameter] struct bpf_trampoline *tr) ^ include/linux/bpf.h:745:63: warning: unused parameter 'prog' [-Wunused-parameter] static inline int bpf_trampoline_unlink_prog(struct bpf_prog *prog, ^ include/linux/bpf.h:746:34: warning: unused parameter 'tr' [-Wunused-parameter] struct bpf_trampoline *tr) ^ include/linux/bpf.h:750:61: warning: unused parameter 'key' [-Wunused-parameter] static inline struct bpf_trampoline *bpf_trampoline_get(u64 key, ^ include/linux/bpf.h:751:39: warning: unused parameter 'tgt_info' [-Wunused-parameter] .. vim +/cpu +300 include/linux/printk.h 299 301 { 302 return false; 303 } 304 #endif /* CONFIG_SMP */ 305 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org