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Date: Mon, 14 Jun 2021 21:59:36 +0800
From: kernel test robot <lkp@...el.com>
To: Ingo Molnar <mingo@...nel.org>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
x86@...nel.org
Subject: [tip:tmp.tmp2 242/364] include/linux/kthread.h:55:3: error: implicit
declaration of function 'wake_up_process'; did you mean 'wake_up_poll'?
Hi Ingo,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git tmp.tmp2
head: adcceb5eb7aee38e4a9c15bdf599655f0e1b1324
commit: 880b182db2f9eaa03034f29e0ba191fcffc4e7f5 [242/364] sched/headers, kthread: Remove <linux/sched.h> from <linux/kthread.h>
config: x86_64-rhel-8.3 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=880b182db2f9eaa03034f29e0ba191fcffc4e7f5
git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
git fetch --no-tags tip tmp.tmp2
git checkout 880b182db2f9eaa03034f29e0ba191fcffc4e7f5
# save the attached .config to linux build tree
make W=1 ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
In file included from include/linux/srcu.h:20,
from include/linux/notifier.h:16,
from arch/x86/include/asm/uprobes.h:13,
from include/linux/uprobes.h:49,
from include/linux/mm_types.h:14,
from include/linux/mmzone.h:21,
from include/linux/gfp.h:7,
from include/linux/mm.h:12,
from include/linux/ring_buffer.h:5,
from kernel/trace/ring_buffer_benchmark.c:7:
include/linux/rcuwait.h: In function 'rcuwait_active':
include/linux/rcupdate.h:364:9: error: dereferencing pointer to incomplete type 'struct task_struct'
364 | typeof(*p) *_________p1 = (typeof(*p) *__force)READ_ONCE(p); \
| ^
include/linux/rcupdate.h:474:31: note: in expansion of macro '__rcu_access_pointer'
474 | #define rcu_access_pointer(p) __rcu_access_pointer((p), __rcu)
| ^~~~~~~~~~~~~~~~~~~~
include/linux/rcuwait.h:33:11: note: in expansion of macro 'rcu_access_pointer'
33 | return !!rcu_access_pointer(w->task);
| ^~~~~~~~~~~~~~~~~~
kernel/trace/ring_buffer_benchmark.c: At top level:
>> kernel/trace/ring_buffer_benchmark.c:45:28: error: 'MAX_NICE' undeclared here (not in a function)
45 | static int producer_nice = MAX_NICE;
| ^~~~~~~~
kernel/trace/ring_buffer_benchmark.c: In function 'ring_buffer_consumer':
>> kernel/trace/ring_buffer_benchmark.c:219:3: error: implicit declaration of function 'set_current_state'; did you mean 'set_current_groups'? [-Werror=implicit-function-declaration]
219 | set_current_state(TASK_INTERRUPTIBLE);
| ^~~~~~~~~~~~~~~~~
| set_current_groups
>> kernel/trace/ring_buffer_benchmark.c:223:3: error: implicit declaration of function 'schedule' [-Werror=implicit-function-declaration]
223 | schedule();
| ^~~~~~~~
>> kernel/trace/ring_buffer_benchmark.c:225:2: error: implicit declaration of function '__set_current_state' [-Werror=implicit-function-declaration]
225 | __set_current_state(TASK_RUNNING);
| ^~~~~~~~~~~~~~~~~~~
kernel/trace/ring_buffer_benchmark.c: In function 'ring_buffer_producer':
>> kernel/trace/ring_buffer_benchmark.c:268:4: error: implicit declaration of function 'wake_up_process'; did you mean 'wake_up_poll'? [-Werror=implicit-function-declaration]
268 | wake_up_process(consumer);
| ^~~~~~~~~~~~~~~
| wake_up_poll
kernel/trace/ring_buffer_benchmark.c:281:4: error: implicit declaration of function 'cond_resched'; did you mean 'should_resched'? [-Werror=implicit-function-declaration]
281 | cond_resched();
| ^~~~~~~~~~~~
| should_resched
kernel/trace/ring_buffer_benchmark.c: In function 'ring_buffer_producer_thread':
>> kernel/trace/ring_buffer_benchmark.c:419:3: error: implicit declaration of function 'schedule_timeout'; did you mean 'schedule_work'? [-Werror=implicit-function-declaration]
419 | schedule_timeout(HZ * SLEEP_TIME);
| ^~~~~~~~~~~~~~~~
| schedule_work
kernel/trace/ring_buffer_benchmark.c: In function 'ring_buffer_benchmark_init':
>> kernel/trace/ring_buffer_benchmark.c:459:4: error: implicit declaration of function 'sched_set_fifo' [-Werror=implicit-function-declaration]
459 | sched_set_fifo(consumer);
| ^~~~~~~~~~~~~~
>> kernel/trace/ring_buffer_benchmark.c:461:4: error: implicit declaration of function 'sched_set_fifo_low' [-Werror=implicit-function-declaration]
461 | sched_set_fifo_low(consumer);
| ^~~~~~~~~~~~~~~~~~
>> kernel/trace/ring_buffer_benchmark.c:463:4: error: implicit declaration of function 'set_user_nice'; did you mean 'seq_user_ns'? [-Werror=implicit-function-declaration]
463 | set_user_nice(consumer, consumer_nice);
| ^~~~~~~~~~~~~
| seq_user_ns
In file included from include/linux/uaccess.h:11,
from arch/x86/include/asm/fpu/xstate.h:5,
from arch/x86/include/asm/pgtable.h:26,
from include/linux/pgtable.h:6,
from include/linux/mm.h:35,
from include/linux/ring_buffer.h:5,
from kernel/trace/ring_buffer_benchmark.c:7:
kernel/trace/ring_buffer_benchmark.c: At top level:
arch/x86/include/asm/uaccess.h:46:20: warning: 'pagefault_disabled' used but never defined
46 | static inline bool pagefault_disabled(void);
| ^~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
--
In file included from lib/kunit/try-catch.c:13:
lib/kunit/try-catch.c: In function 'kunit_try_catch_run':
>> include/linux/kthread.h:55:3: error: implicit declaration of function 'wake_up_process'; did you mean 'wake_up_poll'? [-Werror=implicit-function-declaration]
55 | wake_up_process(__k); \
| ^~~~~~~~~~~~~~~
lib/kunit/try-catch.c:68:16: note: in expansion of macro 'kthread_run'
68 | task_struct = kthread_run(kunit_generic_run_threadfn_adapter,
| ^~~~~~~~~~~
cc1: some warnings being treated as errors
vim +55 include/linux/kthread.h
ac687e6e8c2618 Peter Zijlstra 2021-01-12 40
^1da177e4c3f41 Linus Torvalds 2005-04-16 41 /**
9e37bd301ee130 Randy Dunlap 2006-06-25 42 * kthread_run - create and wake a thread.
^1da177e4c3f41 Linus Torvalds 2005-04-16 43 * @threadfn: the function to run until signal_pending(current).
^1da177e4c3f41 Linus Torvalds 2005-04-16 44 * @data: data ptr for @threadfn.
^1da177e4c3f41 Linus Torvalds 2005-04-16 45 * @namefmt: printf-style name for the thread.
^1da177e4c3f41 Linus Torvalds 2005-04-16 46 *
^1da177e4c3f41 Linus Torvalds 2005-04-16 47 * Description: Convenient wrapper for kthread_create() followed by
9e37bd301ee130 Randy Dunlap 2006-06-25 48 * wake_up_process(). Returns the kthread or ERR_PTR(-ENOMEM).
9e37bd301ee130 Randy Dunlap 2006-06-25 49 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 50 #define kthread_run(threadfn, data, namefmt, ...) \
^1da177e4c3f41 Linus Torvalds 2005-04-16 51 ({ \
^1da177e4c3f41 Linus Torvalds 2005-04-16 52 struct task_struct *__k \
^1da177e4c3f41 Linus Torvalds 2005-04-16 53 = kthread_create(threadfn, data, namefmt, ## __VA_ARGS__); \
^1da177e4c3f41 Linus Torvalds 2005-04-16 54 if (!IS_ERR(__k)) \
^1da177e4c3f41 Linus Torvalds 2005-04-16 @55 wake_up_process(__k); \
^1da177e4c3f41 Linus Torvalds 2005-04-16 56 __k; \
^1da177e4c3f41 Linus Torvalds 2005-04-16 57 })
^1da177e4c3f41 Linus Torvalds 2005-04-16 58
:::::: The code at line 55 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2
:::::: TO: Linus Torvalds <torvalds@...970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@...970.osdl.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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