include/linux/rseq_entry.h:880:3: error: call to undeclared function 'rseq_clear_one_shot_events'; ISO C99 and later do not support implicit function declarations

include/linux/rseq_entry.h:880:3: error: call to undeclared function 'rseq_clear_one_shot_events'; ISO C99 and later do not support implicit function declarations

[kernel test robot]

:::::: 
:::::: Manual check reason: "bisect to a FBC not belonging to original linux-review patches: branch: linux-review/odion-efficios-com/rseq-uapi-add-rseq-operation-definitions/20260828-113339, commit: b48f8aaf42196bb53259f19916fd2afcd82ac10c"
:::::: 

BCC: lkp@intel.com
CC: llvm@lists.linux.dev
CC: oe-kbuild-all@lists.linux.dev
TO: Olivier Dion <odion@efficios.com>
CC: 0day robot <lkp@intel.com>

tree:   https://github.com/intel-lab-lkp/linux/commits/odion-efficios-com/rseq-uapi-add-rseq-operation-definitions/20260828-113339
head:   6442a4dd9f55ba8a0f39522b330200e1b8548bd5
commit: b48f8aaf42196bb53259f19916fd2afcd82ac10c rseq: apply operations on exit to user space
date:   9 hours ago
:::::: branch date: 9 hours ago
:::::: commit date: 9 hours ago
config: arm-allnoconfig (https://download.01.org/0day-ci/archive/20260829/202608290830.9A528I8Q-lkp@intel.com/config)
compiler: clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260829/202608290830.9A528I8Q-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/r/202608290830.9A528I8Q-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from kernel/rseq.c:78:
>> include/linux/rseq_entry.h:880:3: error: call to undeclared function 'rseq_clear_one_shot_events'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     880 |                 rseq_clear_one_shot_events(ev);
         |                 ^
   include/linux/rseq_entry.h:897:2: error: call to undeclared function 'rseq_clear_one_shot_events'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     897 |         rseq_clear_one_shot_events(ev);
         |         ^
   2 errors generated.


vim +/rseq_clear_one_shot_events +880 include/linux/rseq_entry.h

05b44aef709cae5 Thomas Gleixner 2025-10-27  870  
7a5201ea1907534 Thomas Gleixner 2025-10-27  871  static __always_inline void rseq_syscall_exit_to_user_mode(void)
7a5201ea1907534 Thomas Gleixner 2025-10-27  872  {
7a5201ea1907534 Thomas Gleixner 2025-10-27  873  	struct rseq_event *ev = &current->rseq.event;
7a5201ea1907534 Thomas Gleixner 2025-10-27  874  
7a5201ea1907534 Thomas Gleixner 2025-10-27  875  	rseq_stat_inc(rseq_stats.exit);
7a5201ea1907534 Thomas Gleixner 2025-10-27  876  
7a5201ea1907534 Thomas Gleixner 2025-10-27  877  	/* Needed to remove the store for the !lockdep case */
7a5201ea1907534 Thomas Gleixner 2025-10-27  878  	if (IS_ENABLED(CONFIG_LOCKDEP)) {
7a5201ea1907534 Thomas Gleixner 2025-10-27  879  		WARN_ON_ONCE(ev->sched_switch);
b48f8aaf42196bb Olivier Dion    2026-08-28 @880  		rseq_clear_one_shot_events(ev);
7a5201ea1907534 Thomas Gleixner 2025-10-27  881  	}
7a5201ea1907534 Thomas Gleixner 2025-10-27  882  }
7a5201ea1907534 Thomas Gleixner 2025-10-27  883  

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