[jimc:dd-classmaps-v9-akpm 30/41] include/linux/dynamic_debug.h:519:9: warning: '_DPRINTK_CLASSBITS_INIT' macro redefined

[jimc:dd-classmaps-v9-akpm 30/41] include/linux/dynamic_debug.h:519:9: warning: '_DPRINTK_CLASSBITS_INIT' macro redefined

[kernel test robot]

tree:   https://github.com/jimc/linux.git dd-classmaps-v9-akpm
head:   bc05be3d2d3a71c95bbd0c24599f0bafcd5e7326
commit: 5959d9dd620041fe8451e9b2d2545b1084526432 [30/41] dyndbg-API: promote DYNAMIC_DEBUG_CLASSMAP_PARAM to API
config: x86_64-randconfig-161-20260915 (https://download.01.org/0day-ci/archive/20260915/202609150432.LZOVGeK3-lkp@intel.com/config)
compiler: clang version 22.1.8 (https://github.com/llvm/llvm-project ca7933e47d3a3451d81e72ac174dcb5aa28b59d1)
rustc: rustc 1.96.0 (ac68faa20 2026-05-25)
smatch: v0.5.0-9187-g5189e3fb
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260915/202609150432.LZOVGeK3-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/202609150432.LZOVGeK3-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from arch/x86/kernel/asm-offsets.c:10:
   In file included from include/crypto/aria.h:22:
   In file included from include/linux/module.h:31:
>> include/linux/dynamic_debug.h:519:9: warning: '_DPRINTK_CLASSBITS_INIT' macro redefined [-Wmacro-redefined]
     519 | #define _DPRINTK_CLASSBITS_INIT 0U
         |         ^
   include/linux/dynamic_debug.h:70:9: note: previous definition is here
      70 | #define _DPRINTK_CLASSBITS_INIT ((_DPRINTK_FLAGS_DEFAULT & _DPRINTK_FLAGS_PRINT) ? ~0U : 0U)
         |         ^
   1 warning generated.
--
>> clang diag: include/linux/dynamic_debug.h:519:9: warning: '_DPRINTK_CLASSBITS_INIT' macro redefined [-Wmacro-redefined]
--
   In file included from arch/x86/kernel/asm-offsets.c:10:
   In file included from include/crypto/aria.h:22:
   In file included from include/linux/module.h:31:
>> include/linux/dynamic_debug.h:519:9: warning: '_DPRINTK_CLASSBITS_INIT' macro redefined [-Wmacro-redefined]
     519 | #define _DPRINTK_CLASSBITS_INIT 0U
         |         ^
   include/linux/dynamic_debug.h:70:9: note: previous definition is here
      70 | #define _DPRINTK_CLASSBITS_INIT ((_DPRINTK_FLAGS_DEFAULT & _DPRINTK_FLAGS_PRINT) ? ~0U : 0U)
         |         ^
   1 warning generated.
   In file included from kernel/sched/rq-offsets.c:5:
   In file included from kernel/sched/sched.h:31:
   In file included from include/linux/cpufreq.h:12:
   In file included from include/linux/cpu.h:17:
   In file included from include/linux/node.h:18:
   In file included from include/linux/device.h:32:
   In file included from include/linux/device/driver.h:21:
   In file included from include/linux/module.h:31:
>> include/linux/dynamic_debug.h:519:9: warning: '_DPRINTK_CLASSBITS_INIT' macro redefined [-Wmacro-redefined]
     519 | #define _DPRINTK_CLASSBITS_INIT 0U
         |         ^
   include/linux/dynamic_debug.h:70:9: note: previous definition is here
      70 | #define _DPRINTK_CLASSBITS_INIT ((_DPRINTK_FLAGS_DEFAULT & _DPRINTK_FLAGS_PRINT) ? ~0U : 0U)
         |         ^
   1 warning generated.
   llvm-nm: error: rust/helpers/helpers.o: No such file or directory
>> clang diag: include/linux/dynamic_debug.h:519:9: warning: '_DPRINTK_CLASSBITS_INIT' macro redefined [-Wmacro-redefined]
>> clang diag: include/linux/dynamic_debug.h:519:9: warning: '_DPRINTK_CLASSBITS_INIT' macro redefined [-Wmacro-redefined]
>> clang diag: include/linux/dynamic_debug.h:519:9: warning: '_DPRINTK_CLASSBITS_INIT' macro redefined [-Wmacro-redefined]


vim +/_DPRINTK_CLASSBITS_INIT +519 include/linux/dynamic_debug.h

   515	
   516	#if defined(DEBUG)
   517	#define _DPRINTK_CLASSBITS_INIT ~0U
   518	#else
 > 519	#define _DPRINTK_CLASSBITS_INIT 0U
   520	#endif
   521	

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki