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X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Sun, Aug 24, 2025 at 05:32:49AM +0800, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable > head: 3c3393d4b766eebdc475ea5bd6bbd3a221e2526e > commit: 98a7f4a3d2b1655e323e6943cf0203d0bd5a64eb [125/221] mm: update coredump logic to correctly use bitmap mm flags > config: arc-randconfig-r071-20250824 (https://download.01.org/0day-ci/archive/20250824/202508240502.frw1Krzo-lkp@intel.com/config) Sigh, another 'special' arch (+ config options) causing issues with core changes... I'm guessing it's having problems, somehow (???) with importing compiler_types.h which is just... yeah. This is for ACCESS_PRIVATE(). Will try to come up wtih a solution just to suit arc with some horrid config then I guess :/ Given the issue clearly has to be (although it's bizarre) the including of linux/compiler_types.h, let's move __mm_flags_set_mask_dumpable() to include/linux/mm.h (even though it sucks to really). Will send a fix-patch in the series... > compiler: arc-linux-gcc (GCC) 9.5.0 > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250824/202508240502.frw1Krzo-lkp@intel.com/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 > | Closes: https://lore.kernel.org/oe-kbuild-all/202508240502.frw1Krzo-lkp@intel.com/ > > All warnings (new ones prefixed by >>): > > include/linux/sched/task.h: At top level: > include/linux/sched/task.h:99:41: warning: 'struct pid' declared inside parameter list will not be visible outside of this definition or declaration > 99 | struct task_struct *copy_process(struct pid *pid, int trace, int node, > | ^~~ > include/linux/sched/task.h: In function 'arch_thread_struct_whitelist': > include/linux/sched/task.h:178:40: error: invalid application of 'sizeof' to incomplete type 'struct task_struct' > 178 | # define arch_task_struct_size (sizeof(struct task_struct)) > | ^~~~~~ > include/linux/sched/task.h:191:10: note: in expansion of macro 'arch_task_struct_size' > 191 | *size = arch_task_struct_size - offsetof(struct task_struct, thread); > | ^~~~~~~~~~~~~~~~~~~~~ OK so somehow before there was some... alternative offsetof defined?... Because this is just weird. It's not really digging into exactly why this is triggering I don't think given I can avoid the include that causes it. > In file included from include/uapi/linux/posix_types.h:5, > from include/uapi/linux/types.h:14, > from include/linux/types.h:6, > from include/uapi/linux/sched.h:5, > from include/linux/sched.h:10, > from arch/arc/kernel/asm-offsets.c:6: > include/linux/stddef.h:16:32: error: invalid use of undefined type 'struct task_struct' > 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) > | ^~~~~~~~~~~~~~~~~~ > include/linux/sched/task.h:191:34: note: in expansion of macro 'offsetof' > 191 | *size = arch_task_struct_size - offsetof(struct task_struct, thread); > | ^~~~~~~~ > In file included from include/linux/sched/user.h:9, > from include/linux/cred.h:18, > from include/linux/sched/signal.h:10, > from include/linux/rcuwait.h:6, > from include/linux/mm.h:36, > from arch/arc/include/asm/arcregs.h:149, > from arch/arc/include/asm/irqflags-compact.h:16, > from arch/arc/include/asm/irqflags.h:11, > from include/linux/irqflags.h:18, > from include/linux/spinlock.h:59, > from include/linux/sched.h:37, > from arch/arc/kernel/asm-offsets.c:6: > include/linux/ratelimit.h: In function 'ratelimit_state_init': > include/linux/ratelimit.h:14:2: error: implicit declaration of function 'raw_spin_lock_init' [-Werror=implicit-function-declaration] > 14 | raw_spin_lock_init(&rs->lock); > | ^~~~~~~~~~~~~~~~~~ > include/linux/ratelimit.h: In function 'ratelimit_state_reset_interval': > include/linux/ratelimit.h:44:2: error: implicit declaration of function 'raw_spin_lock_irqsave'; did you mean 'read_seqbegin_or_lock_irqsave'? [-Werror=implicit-function-declaration] > 44 | raw_spin_lock_irqsave(&rs->lock, flags); > | ^~~~~~~~~~~~~~~~~~~~~ > | read_seqbegin_or_lock_irqsave > include/linux/ratelimit.h:49:2: error: implicit declaration of function 'raw_spin_unlock_irqrestore'; did you mean 'write_sequnlock_irqrestore'? [-Werror=implicit-function-declaration] > 49 | raw_spin_unlock_irqrestore(&rs->lock, flags); > | ^~~~~~~~~~~~~~~~~~~~~~~~~~ > | write_sequnlock_irqrestore > In file included from include/linux/sched/signal.h:12, > from include/linux/rcuwait.h:6, > from include/linux/mm.h:36, > from arch/arc/include/asm/arcregs.h:149, > from arch/arc/include/asm/irqflags-compact.h:16, > from arch/arc/include/asm/irqflags.h:11, > from include/linux/irqflags.h:18, > from include/linux/spinlock.h:59, > from include/linux/sched.h:37, > from arch/arc/kernel/asm-offsets.c:6: > include/linux/pid.h: In function 'pid_alive': > include/linux/pid.h:267:10: error: dereferencing pointer to incomplete type 'const struct task_struct' > 267 | return p->thread_pid != NULL; > | ^~ > In file included from include/linux/preempt.h:11, > from include/linux/sched.h:15, > from arch/arc/kernel/asm-offsets.c:6: > include/linux/hrtimer.h: In function 'hrtimer_update_function': > include/linux/cleanup.h:290:2: error: unknown type name 'class_raw_spinlock_irqsave_t'; did you mean 'class_local_lock_irqsave_t'? > 290 | class_##_name##_t var __cleanup(class_##_name##_destructor) = \ > | ^~~~~~ > include/linux/cleanup.h:401:2: note: in expansion of macro 'CLASS' > 401 | CLASS(_name, __UNIQUE_ID(guard)) > | ^~~~~ > include/linux/hrtimer.h:340:2: note: in expansion of macro 'guard' > 340 | guard(raw_spinlock_irqsave)(&timer->base->cpu_base->lock); > | ^~~~~ > In file included from include/linux/alarmtimer.h:6, > from include/linux/posix-timers.h:5, > from include/linux/sched/signal.h:13, > from include/linux/rcuwait.h:6, > from include/linux/mm.h:36, > from arch/arc/include/asm/arcregs.h:149, > from arch/arc/include/asm/irqflags-compact.h:16, > from arch/arc/include/asm/irqflags.h:11, > from include/linux/irqflags.h:18, > from include/linux/spinlock.h:59, > from include/linux/sched.h:37, > from arch/arc/kernel/asm-offsets.c:6: > include/linux/hrtimer.h:340:2: error: cleanup argument not a function > In file included from include/linux/preempt.h:11, > from include/linux/sched.h:15, > from arch/arc/kernel/asm-offsets.c:6: > include/linux/cleanup.h:291:3: error: implicit declaration of function 'class_raw_spinlock_irqsave_constructor'; did you mean 'class_local_lock_irqsave_constructor'? [-Werror=implicit-function-declaration] > 291 | class_##_name##_constructor > | ^~~~~~ > include/linux/cleanup.h:401:2: note: in expansion of macro 'CLASS' > 401 | CLASS(_name, __UNIQUE_ID(guard)) > | ^~~~~ > include/linux/hrtimer.h:340:2: note: in expansion of macro 'guard' > 340 | guard(raw_spinlock_irqsave)(&timer->base->cpu_base->lock); > | ^~~~~ > >> include/linux/compiler.h:166:45: warning: unused variable '__UNIQUE_ID_guard255' [-Wunused-variable] > 166 | #define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__) > | ^~~~~~~~~~~~ > include/linux/cleanup.h:290:20: note: in definition of macro 'CLASS' > 290 | class_##_name##_t var __cleanup(class_##_name##_destructor) = \ > | ^~~ > include/linux/compiler_types.h:84:22: note: in expansion of macro '___PASTE' > 84 | #define __PASTE(a,b) ___PASTE(a,b) > | ^~~~~~~~ > include/linux/compiler.h:166:29: note: in expansion of macro '__PASTE' > 166 | #define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__) > | ^~~~~~~ > include/linux/compiler_types.h:84:22: note: in expansion of macro '___PASTE' > 84 | #define __PASTE(a,b) ___PASTE(a,b) > | ^~~~~~~~ > include/linux/compiler.h:166:37: note: in expansion of macro '__PASTE' > 166 | #define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__) > | ^~~~~~~ > include/linux/cleanup.h:401:15: note: in expansion of macro '__UNIQUE_ID' > 401 | CLASS(_name, __UNIQUE_ID(guard)) > | ^~~~~~~~~~~ > include/linux/hrtimer.h:340:2: note: in expansion of macro 'guard' > 340 | guard(raw_spinlock_irqsave)(&timer->base->cpu_base->lock); > | ^~~~~ > In file included from include/linux/rbtree.h:24, > from include/linux/mm_types.h:11, > from include/linux/mmzone.h:22, > from include/linux/gfp.h:7, > from include/linux/mm.h:7, > from arch/arc/include/asm/arcregs.h:149, > from arch/arc/include/asm/irqflags-compact.h:16, > from arch/arc/include/asm/irqflags.h:11, > from include/linux/irqflags.h:18, > from include/linux/spinlock.h:59, > from include/linux/sched.h:37, > from arch/arc/kernel/asm-offsets.c:6: > include/linux/rcuref.h: In function '__rcuref_put': > include/linux/preempt.h:227:49: error: implicit declaration of function 'irqs_disabled' [-Werror=implicit-function-declaration] > 227 | #define preemptible() (preempt_count() == 0 && !irqs_disabled()) > | ^~~~~~~~~~~~~ > include/linux/rcupdate.h:399:39: note: in definition of macro 'RCU_LOCKDEP_WARN' > 399 | if (debug_lockdep_rcu_enabled() && (c) && \ > | ^ > include/linux/rcuref.h:103:44: note: in expansion of macro 'preemptible' > 103 | RCU_LOCKDEP_WARN(!rcu_read_lock_held() && preemptible(), > | ^~~~~~~~~~~ > In file included from include/linux/rcuwait.h:6, > from include/linux/mm.h:36, > from arch/arc/include/asm/arcregs.h:149, > from arch/arc/include/asm/irqflags-compact.h:16, > from arch/arc/include/asm/irqflags.h:11, > from include/linux/irqflags.h:18, > from include/linux/spinlock.h:59, > from include/linux/sched.h:37, > from arch/arc/kernel/asm-offsets.c:6: > include/linux/sched/signal.h: At top level: > include/linux/sched/signal.h:192:22: error: field 'prev_cputime' has incomplete type > 192 | struct prev_cputime prev_cputime; > | ^~~~~~~~~~~~ > include/linux/sched/signal.h:197:28: error: field 'ioac' has incomplete type > 197 | struct task_io_accounting ioac; > | ^~~~ > include/linux/sched/signal.h: In function 'kernel_signal_stop': > include/linux/sched/signal.h:302:3: error: implicit declaration of function 'set_special_state' [-Werror=implicit-function-declaration] > 302 | set_special_state(TASK_STOPPED); > | ^~~~~~~~~~~~~~~~~ > include/linux/sched/signal.h:302:21: error: 'TASK_STOPPED' undeclared (first use in this function); did you mean 'CLD_STOPPED'? > 302 | set_special_state(TASK_STOPPED); > | ^~~~~~~~~~~~ > | CLD_STOPPED > include/linux/sched/signal.h:306:2: error: implicit declaration of function 'schedule'; did you mean 'sched_exec'? [-Werror=implicit-function-declaration] > 306 | schedule(); > | ^~~~~~~~ > | sched_exec > include/linux/sched/signal.h: In function '__set_notify_signal': > include/linux/sched/signal.h:357:10: error: implicit declaration of function 'test_and_set_tsk_thread_flag'; did you mean 'test_and_set_ti_thread_flag'? [-Werror=implicit-function-declaration] > 357 | return !test_and_set_tsk_thread_flag(task, TIF_NOTIFY_SIGNAL) && > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ > | test_and_set_ti_thread_flag > include/linux/sched/signal.h:358:10: error: implicit declaration of function 'wake_up_state'; did you mean 'wake_up_sync'? [-Werror=implicit-function-declaration] > 358 | !wake_up_state(task, TASK_INTERRUPTIBLE); > | ^~~~~~~~~~~~~ > | wake_up_sync > include/linux/sched/signal.h:358:30: error: 'TASK_INTERRUPTIBLE' undeclared (first use in this function); did you mean 'FOLL_INTERRUPTIBLE'? > 358 | !wake_up_state(task, TASK_INTERRUPTIBLE); > | ^~~~~~~~~~~~~~~~~~ > | FOLL_INTERRUPTIBLE > include/linux/sched/signal.h: In function 'set_notify_signal': > include/linux/sched/signal.h:368:3: error: implicit declaration of function 'kick_process'; did you mean 'copy_process'? [-Werror=implicit-function-declaration] > 368 | kick_process(task); > | ^~~~~~~~~~~~ > | copy_process > include/linux/sched/signal.h: In function 'restart_syscall': > include/linux/sched/signal.h:373:2: error: implicit declaration of function 'set_tsk_thread_flag'; did you mean 'set_ti_thread_flag'? [-Werror=implicit-function-declaration] > 373 | set_tsk_thread_flag(current, TIF_SIGPENDING); > | ^~~~~~~~~~~~~~~~~~~ > | set_ti_thread_flag > In file included from arch/arc/include/asm/ptrace.h:11, > from arch/arc/include/asm/processor.h:16, > from include/linux/sched.h:13, > from arch/arc/kernel/asm-offsets.c:6: > > > vim +/__UNIQUE_ID_guard255 +166 include/linux/compiler.h > > fe8c8a126806fe Cesar Eduardo Barros 2013-11-25 165 > a8306f2d4dcea0 Nick Desaulniers 2023-08-31 @166 #define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__) > 6f33d58794ef4c Rusty Russell 2012-11-22 167 > > :::::: The code at line 166 was first introduced by commit > :::::: a8306f2d4dcea03538c70c26d2948483f70254ff compiler.h: unify __UNIQUE_ID > > :::::: TO: Nick Desaulniers > :::::: CC: Andrew Morton > > -- > 0-DAY CI Kernel Test Service > https://github.com/intel/lkp-tests/wiki