* [jfern:rcu/repro-irq-loop 25/26] kernel/softirq.c:642:22: error: no member named 'rcu_read_unlock_special' in 'struct task_struct'
@ 2025-06-04 14:00 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2025-06-04 14:00 UTC (permalink / raw)
To: Joel Fernandes; +Cc: llvm, oe-kbuild-all
tree: https://git.kernel.org/pub/scm/linux/kernel/git/jfern/linux.git rcu/repro-irq-loop
head: fa3bc34561eb0c8d8d6a0634a8cb953083255117
commit: 9b64249e95c159447bf6ca5adcd2fea32a91491d [25/26] HACK: Force rcu_r_u_s in tick_irq_exit()
config: x86_64-allnoconfig (https://download.01.org/0day-ci/archive/20250604/202506042116.qdOac1Qk-lkp@intel.com/config)
compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250604/202506042116.qdOac1Qk-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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202506042116.qdOac1Qk-lkp@intel.com/
All errors (new ones prefixed by >>):
>> kernel/softirq.c:642:22: error: no member named 'rcu_read_unlock_special' in 'struct task_struct'
642 | WRITE_ONCE(current->rcu_read_unlock_special.b.need_qs, true);
| ~~~~~~~ ^
include/asm-generic/rwonce.h:60:33: note: expanded from macro 'WRITE_ONCE'
60 | compiletime_assert_rwonce_type(x); \
| ^
include/asm-generic/rwonce.h:36:35: note: expanded from macro 'compiletime_assert_rwonce_type'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^
include/linux/compiler_types.h:524:10: note: expanded from macro '__native_word'
524 | (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \
| ^
include/linux/compiler_types.h:557:22: note: expanded from macro 'compiletime_assert'
557 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~
include/linux/compiler_types.h:545:23: note: expanded from macro '_compiletime_assert'
545 | __compiletime_assert(condition, msg, prefix, suffix)
| ^~~~~~~~~
include/linux/compiler_types.h:537:9: note: expanded from macro '__compiletime_assert'
537 | if (!(condition)) \
| ^~~~~~~~~
>> kernel/softirq.c:642:22: error: no member named 'rcu_read_unlock_special' in 'struct task_struct'
642 | WRITE_ONCE(current->rcu_read_unlock_special.b.need_qs, true);
| ~~~~~~~ ^
include/asm-generic/rwonce.h:60:33: note: expanded from macro 'WRITE_ONCE'
60 | compiletime_assert_rwonce_type(x); \
| ^
include/asm-generic/rwonce.h:36:35: note: expanded from macro 'compiletime_assert_rwonce_type'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^
include/linux/compiler_types.h:524:39: note: expanded from macro '__native_word'
524 | (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \
| ^
include/linux/compiler_types.h:557:22: note: expanded from macro 'compiletime_assert'
557 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~
include/linux/compiler_types.h:545:23: note: expanded from macro '_compiletime_assert'
545 | __compiletime_assert(condition, msg, prefix, suffix)
| ^~~~~~~~~
include/linux/compiler_types.h:537:9: note: expanded from macro '__compiletime_assert'
537 | if (!(condition)) \
| ^~~~~~~~~
>> kernel/softirq.c:642:22: error: no member named 'rcu_read_unlock_special' in 'struct task_struct'
642 | WRITE_ONCE(current->rcu_read_unlock_special.b.need_qs, true);
| ~~~~~~~ ^
include/asm-generic/rwonce.h:60:33: note: expanded from macro 'WRITE_ONCE'
60 | compiletime_assert_rwonce_type(x); \
| ^
include/asm-generic/rwonce.h:36:35: note: expanded from macro 'compiletime_assert_rwonce_type'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^
include/linux/compiler_types.h:525:10: note: expanded from macro '__native_word'
525 | sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
| ^
include/linux/compiler_types.h:557:22: note: expanded from macro 'compiletime_assert'
557 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~
include/linux/compiler_types.h:545:23: note: expanded from macro '_compiletime_assert'
545 | __compiletime_assert(condition, msg, prefix, suffix)
| ^~~~~~~~~
include/linux/compiler_types.h:537:9: note: expanded from macro '__compiletime_assert'
537 | if (!(condition)) \
| ^~~~~~~~~
>> kernel/softirq.c:642:22: error: no member named 'rcu_read_unlock_special' in 'struct task_struct'
642 | WRITE_ONCE(current->rcu_read_unlock_special.b.need_qs, true);
| ~~~~~~~ ^
include/asm-generic/rwonce.h:60:33: note: expanded from macro 'WRITE_ONCE'
60 | compiletime_assert_rwonce_type(x); \
| ^
include/asm-generic/rwonce.h:36:35: note: expanded from macro 'compiletime_assert_rwonce_type'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^
include/linux/compiler_types.h:525:38: note: expanded from macro '__native_word'
525 | sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
| ^
include/linux/compiler_types.h:557:22: note: expanded from macro 'compiletime_assert'
557 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~
include/linux/compiler_types.h:545:23: note: expanded from macro '_compiletime_assert'
545 | __compiletime_assert(condition, msg, prefix, suffix)
| ^~~~~~~~~
include/linux/compiler_types.h:537:9: note: expanded from macro '__compiletime_assert'
537 | if (!(condition)) \
| ^~~~~~~~~
>> kernel/softirq.c:642:22: error: no member named 'rcu_read_unlock_special' in 'struct task_struct'
642 | WRITE_ONCE(current->rcu_read_unlock_special.b.need_qs, true);
| ~~~~~~~ ^
include/asm-generic/rwonce.h:60:33: note: expanded from macro 'WRITE_ONCE'
60 | compiletime_assert_rwonce_type(x); \
| ^
include/asm-generic/rwonce.h:36:48: note: expanded from macro 'compiletime_assert_rwonce_type'
36 | compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \
| ^
include/linux/compiler_types.h:557:22: note: expanded from macro 'compiletime_assert'
557 | _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
| ^~~~~~~~~
include/linux/compiler_types.h:545:23: note: expanded from macro '_compiletime_assert'
545 | __compiletime_assert(condition, msg, prefix, suffix)
| ^~~~~~~~~
include/linux/compiler_types.h:537:9: note: expanded from macro '__compiletime_assert'
537 | if (!(condition)) \
| ^~~~~~~~~
>> kernel/softirq.c:642:22: error: no member named 'rcu_read_unlock_special' in 'struct task_struct'
642 | WRITE_ONCE(current->rcu_read_unlock_special.b.need_qs, true);
| ~~~~~~~ ^
include/asm-generic/rwonce.h:61:15: note: expanded from macro 'WRITE_ONCE'
61 | __WRITE_ONCE(x, val); \
| ^
include/asm-generic/rwonce.h:55:20: note: expanded from macro '__WRITE_ONCE'
55 | *(volatile typeof(x) *)&(x) = (val); \
| ^
>> kernel/softirq.c:642:22: error: no member named 'rcu_read_unlock_special' in 'struct task_struct'
642 | WRITE_ONCE(current->rcu_read_unlock_special.b.need_qs, true);
| ~~~~~~~ ^
include/asm-generic/rwonce.h:61:15: note: expanded from macro 'WRITE_ONCE'
61 | __WRITE_ONCE(x, val); \
| ^
include/asm-generic/rwonce.h:55:27: note: expanded from macro '__WRITE_ONCE'
55 | *(volatile typeof(x) *)&(x) = (val); \
| ^
7 errors generated.
vim +642 kernel/softirq.c
638
639 static inline void tick_irq_exit(void)
640 {
641 rcu_read_lock();
> 642 WRITE_ONCE(current->rcu_read_unlock_special.b.need_qs, true);
643 rcu_read_unlock();
644
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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