[tglx-devel:irqflags 4/22] rust/helpers/spinlock.h:53:34: error: call to undeclared function '__LOCK'; ISO C99 and later do not support implicit function declarations

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

TO: Thomas Gleixner <tglx@kernel.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git irqflags
head:   ec3ae38eecb47043e2e2d2138e35ee22dedfced4
commit: e4ad033b57310ea8804a2fb5a32a23fdd93e4329 [4/22] movestuff
config: x86_64-randconfig-005-20260831 (https://download.01.org/0day-ci/archive/20260831/202608312301.kMILkNug-lkp@intel.com/config)
compiler: clang version 22.1.3 (https://github.com/llvm/llvm-project e9846648fd6183ee6d8cbdb4502213fcf902a211)
rustc: rustc 1.96.0 (ac68faa20 2026-05-25)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260831/202608312301.kMILkNug-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/202608312301.kMILkNug-lkp@intel.com/

All errors (new ones prefixed by >>):

>> rust/helpers/spinlock.h:53:34: error: call to undeclared function '__LOCK'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
>> rust/helpers/spinlock.h:53:34: error: call to undeclared function '__LOCK'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
>> rust/helpers/spinlock.h:55:7: error: call to undeclared function '__UNLOCK'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
>> rust/helpers/spinlock.h:53:2: error: expected identifier or '('
>> rust/helpers/spinlock.h:53:65: error: while loop outside of a function
>> rust/helpers/spinlock.c:31:19: error: use of undeclared identifier '_raw_spin_lock_irq_disable'
   rust/helpers/spinlock.h:55:2: error: expected identifier or '('
   rust/helpers/spinlock.h:55:66: error: while loop outside of a function
>> rust/helpers/spinlock.c:39:19: error: use of undeclared identifier '_raw_spin_unlock_irq_enable'
>> Unable to generate bindings: clang diagnosed error: rust/helpers/spinlock.h:53:34: error: call to undeclared function '__LOCK'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
>> rust/helpers/spinlock.h:53:34: error: call to undeclared function '__LOCK'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
>> rust/helpers/spinlock.h:55:7: error: call to undeclared function '__UNLOCK'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
>> rust/helpers/spinlock.h:53:2: error: expected identifier or '('
>> rust/helpers/spinlock.h:53:65: error: while loop outside of a function
>> rust/helpers/spinlock.c:31:19: error: use of undeclared identifier '_raw_spin_lock_irq_disable'
   rust/helpers/spinlock.h:55:2: error: expected identifier or '('
   rust/helpers/spinlock.h:55:66: error: while loop outside of a function
>> rust/helpers/spinlock.c:39:19: error: use of undeclared identifier '_raw_spin_unlock_irq_enable'


vim +/__LOCK +53 rust/helpers/spinlock.h

    51	
    52	#define __LOCK_IRQ_DISABLE(lock, ...)						\
  > 53		do { local_interrupt_disable(); __LOCK(lock, ##__VA_ARGS__); } while (0)
    54	#define __UNLOCK_IRQ_ENABLE(lock, ...)						\
  > 55		do { __UNLOCK(lock, ##__VA_ARGS__); local_interrupt_enable(); } while (0)
    56	

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