Re: [POC 1/6] irq & spin_lock: Add counted interrupt disabling/enabling

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

Hi Boqun,

kernel test robot noticed the following build errors:

[auto build test ERROR on tip/locking/core]
[also build test ERROR on linus/master v6.12-rc4 next-20241018]
[cannot apply to rust/rust-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Boqun-Feng/irq-spin_lock-Add-counted-interrupt-disabling-enabling/20241018-135435
base:   tip/locking/core
patch link:    https://lore.kernel.org/r/20241018055125.2784186-2-boqun.feng%40gmail.com
patch subject: [POC 1/6] irq & spin_lock: Add counted interrupt disabling/enabling
config: um-allnoconfig (https://download.01.org/0day-ci/archive/20241021/202410211503.Ri6kGlzj-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/20241021/202410211503.Ri6kGlzj-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/202410211503.Ri6kGlzj-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from arch/um/kernel/asm-offsets.c:1:
   In file included from arch/x86/um/shared/sysdep/kernel-offsets.h:3:
   In file included from include/linux/sched.h:2140:
>> include/linux/spinlock.h:383:2: error: call to undeclared function '_raw_spin_lock_irq_disable'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     383 |         raw_spin_lock_irq_disable(&lock->rlock);
         |         ^
   include/linux/spinlock.h:275:41: note: expanded from macro 'raw_spin_lock_irq_disable'
     275 | #define raw_spin_lock_irq_disable(lock) _raw_spin_lock_irq_disable(lock)
         |                                         ^
   include/linux/spinlock.h:383:2: note: did you mean 'spin_lock_irq_disable'?
   include/linux/spinlock.h:275:41: note: expanded from macro 'raw_spin_lock_irq_disable'
     275 | #define raw_spin_lock_irq_disable(lock) _raw_spin_lock_irq_disable(lock)
         |                                         ^
   include/linux/spinlock.h:381:29: note: 'spin_lock_irq_disable' declared here
     381 | static __always_inline void spin_lock_irq_disable(spinlock_t *lock)
         |                             ^
>> include/linux/spinlock.h:413:2: error: call to undeclared function '_raw_spin_unlock_irq_enable'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     413 |         raw_spin_unlock_irq_enable(&lock->rlock);
         |         ^
   include/linux/spinlock.h:279:42: note: expanded from macro 'raw_spin_unlock_irq_enable'
     279 | #define raw_spin_unlock_irq_enable(lock)        _raw_spin_unlock_irq_enable(lock)
         |                                                 ^
   include/linux/spinlock.h:413:2: note: did you mean 'spin_unlock_irq_enable'?
   include/linux/spinlock.h:279:42: note: expanded from macro 'raw_spin_unlock_irq_enable'
     279 | #define raw_spin_unlock_irq_enable(lock)        _raw_spin_unlock_irq_enable(lock)
         |                                                 ^
   include/linux/spinlock.h:411:29: note: 'spin_unlock_irq_enable' declared here
     411 | static __always_inline void spin_unlock_irq_enable(spinlock_t *lock)
         |                             ^
   2 errors generated.
   make[3]: *** [scripts/Makefile.build:102: arch/um/kernel/asm-offsets.s] Error 1
   make[3]: Target 'prepare' not remade because of errors.
   make[2]: *** [Makefile:1203: prepare0] Error 2
   make[2]: Target 'prepare' not remade because of errors.
   make[1]: *** [Makefile:224: __sub-make] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:224: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.


vim +/_raw_spin_lock_irq_disable +383 include/linux/spinlock.h

   380	
   381	static __always_inline void spin_lock_irq_disable(spinlock_t *lock)
   382	{
 > 383		raw_spin_lock_irq_disable(&lock->rlock);
   384	}
   385	
   386	#define spin_lock_irqsave(lock, flags)				\
   387	do {								\
   388		raw_spin_lock_irqsave(spinlock_check(lock), flags);	\
   389	} while (0)
   390	
   391	#define spin_lock_irqsave_nested(lock, flags, subclass)			\
   392	do {									\
   393		raw_spin_lock_irqsave_nested(spinlock_check(lock), flags, subclass); \
   394	} while (0)
   395	
   396	static __always_inline void spin_unlock(spinlock_t *lock)
   397	{
   398		raw_spin_unlock(&lock->rlock);
   399	}
   400	
   401	static __always_inline void spin_unlock_bh(spinlock_t *lock)
   402	{
   403		raw_spin_unlock_bh(&lock->rlock);
   404	}
   405	
   406	static __always_inline void spin_unlock_irq(spinlock_t *lock)
   407	{
   408		raw_spin_unlock_irq(&lock->rlock);
   409	}
   410	
   411	static __always_inline void spin_unlock_irq_enable(spinlock_t *lock)
   412	{
 > 413		raw_spin_unlock_irq_enable(&lock->rlock);
   414	}
   415	

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