[rt-devel:linux-6.10.y-rt-rebase 11/93] kernel/softirq.c:663:40: error: call to undeclared function 'local_pending_timers'; ISO C99 and later do not support implicit function declarations

[kernel test robot <lkp@intel.com>]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-6.10.y-rt-rebase
head:   6d20efa57a896036453f4b061ae22601ef61b494
commit: 9105c9af2449940dbb3b9c2b98f2c9868a384410 [11/93] softirq: Use a dedicated thread for timer wakeups.
config: i386-randconfig-012-20240529 (https://download.01.org/0day-ci/archive/20240530/202405300512.kGipfc2J-lkp@intel.com/config)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240530/202405300512.kGipfc2J-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/202405300512.kGipfc2J-lkp@intel.com/

Note: the rt-devel/linux-6.10.y-rt-rebase HEAD 6d20efa57a896036453f4b061ae22601ef61b494 builds fine.
      It only hurts bisectability.

All errors (new ones prefixed by >>):

>> kernel/softirq.c:663:40: error: call to undeclared function 'local_pending_timers'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     663 |                 if (IS_ENABLED(CONFIG_PREEMPT_RT) && local_pending_timers())
         |                                                      ^
   1 error generated.


vim +/local_pending_timers +663 kernel/softirq.c

   649	
   650	static inline void __irq_exit_rcu(void)
   651	{
   652	#ifndef __ARCH_IRQ_EXIT_IRQS_DISABLED
   653		local_irq_disable();
   654	#else
   655		lockdep_assert_irqs_disabled();
   656	#endif
   657		account_hardirq_exit(current);
   658		preempt_count_sub(HARDIRQ_OFFSET);
   659		if (!in_interrupt()) {
   660			if (local_softirq_pending())
   661				invoke_softirq();
   662	
 > 663			if (IS_ENABLED(CONFIG_PREEMPT_RT) && local_pending_timers())
   664				wake_timersd();
   665		}
   666	
   667		tick_irq_exit();
   668	}
   669	

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