[linux-next:master 4460/5027] include/linux/jump_label.h:81:35: error: implicit declaration of function 'WARN'

[linux-next:master 4460/5027] include/linux/jump_label.h:81:35: error: implicit declaration of function 'WARN'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   451cc82bd11eb6a374f4dbcfc1cf007eafea91ab
commit: de2f542cfbec295ac0f9b6a832d7b3ba20df391f [4460/5027] fs/proc: Add /proc/cmdline_load for boot loader arguments
config: arm64-randconfig-r061-20230727 (https://download.01.org/0day-ci/archive/20230727/202307271907.B7vh0S4A-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20230727/202307271907.B7vh0S4A-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/202307271907.B7vh0S4A-lkp@intel.com/

Note: the linux-next/master HEAD 451cc82bd11eb6a374f4dbcfc1cf007eafea91ab builds fine.
      It may have been fixed somewhere.

All errors (new ones prefixed by >>):

   In file included from include/linux/static_key.h:1,
                    from include/linux/kasan-enabled.h:5,
                    from arch/arm64/include/asm/cache.h:41,
                    from include/linux/cache.h:6,
                    from include/linux/init.h:116,
                    from include/linux/printk.h:6,
                    from include/asm-generic/bug.h:22,
                    from arch/arm64/include/asm/bug.h:26,
                    from include/linux/bug.h:5,
                    from include/linux/fortify-string.h:5,
                    from include/linux/string.h:254,
                    from include/linux/uuid.h:11,
                    from include/linux/mod_devicetable.h:14,
                    from scripts/mod/devicetable-offsets.c:3:
   include/linux/jump_label.h: In function 'static_key_fast_inc_not_disabled':
>> include/linux/jump_label.h:81:35: error: implicit declaration of function 'WARN' [-Werror=implicit-function-declaration]
      81 | #define STATIC_KEY_CHECK_USE(key) WARN(!static_key_initialized,               \
         |                                   ^~~~
   include/linux/jump_label.h:286:9: note: in expansion of macro 'STATIC_KEY_CHECK_USE'
     286 |         STATIC_KEY_CHECK_USE(key);
         |         ^~~~~~~~~~~~~~~~~~~~
   include/linux/jump_label.h: In function 'static_key_enable':
>> include/linux/jump_label.h:322:17: error: implicit declaration of function 'WARN_ON_ONCE' [-Werror=implicit-function-declaration]
     322 |                 WARN_ON_ONCE(atomic_read(&key->enabled) != 1);
         |                 ^~~~~~~~~~~~
   cc1: some warnings being treated as errors
   make[3]: *** [scripts/Makefile.build:116: scripts/mod/devicetable-offsets.s] Error 1
   make[3]: Target 'scripts/mod/' not remade because of errors.
   make[2]: *** [Makefile:1274: prepare0] Error 2
   make[2]: Target 'prepare' not remade because of errors.
   make[1]: *** [Makefile:234: __sub-make] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:234: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.


vim +/WARN +81 include/linux/jump_label.h

c4b2c0c5f647aa Hannes Frederic Sowa 2013-10-19  80  
5cdda5117e125e Borislav Petkov      2017-10-18 @81  #define STATIC_KEY_CHECK_USE(key) WARN(!static_key_initialized,		      \
5cdda5117e125e Borislav Petkov      2017-10-18  82  				    "%s(): static key '%pS' used before call to jump_label_init()", \
5cdda5117e125e Borislav Petkov      2017-10-18  83  				    __func__, (key))
d430d3d7e646eb Jason Baron          2011-03-16  84  

:::::: The code at line 81 was first introduced by commit
:::::: 5cdda5117e125e0dbb020425cc55a4c143c6febc locking/static_keys: Improve uninitialized key warning

:::::: TO: Borislav Petkov <bp@suse.de>
:::::: CC: Ingo Molnar <mingo@kernel.org>

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https://github.com/intel/lkp-tests/wiki