[linux-next:master 11408/11415] lib/tests/longest_symbol_kunit.c:28:14: sparse: sparse: '##' failed: concatenation is not a valid token

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

:::::: 
:::::: Manual check reason: "low confidence static check warning: lib/tests/longest_symbol_kunit.c:28:14: sparse: sparse: '##' failed: concatenation is not a valid token"
:::::: 

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: Kees Cook <kees@kernel.org>


First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   e94bd4ec45ac156616da285a0bf03056cd7430fc
commit: 8d483b174d31ef9aff98089d67401e6fc6ad4ea7 [11408/11415] Merge branch 'for-next/kspp' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git
:::::: branch date: 11 hours ago
:::::: commit date: 13 hours ago
config: csky-randconfig-r131-20250318 (https://download.01.org/0day-ci/archive/20250318/202503180806.WdbmHQEr-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 14.2.0
reproduce: (https://download.01.org/0day-ci/archive/20250318/202503180806.WdbmHQEr-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/r/202503180806.WdbmHQEr-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> lib/tests/longest_symbol_kunit.c:28:14: sparse: sparse: '##' failed: concatenation is not a valid token
>> lib/tests/longest_symbol_kunit.c:28:14: sparse: sparse: '##' failed: concatenation is not a valid token
   lib/tests/longest_symbol_kunit.c:29:14: sparse: sparse: '##' failed: concatenation is not a valid token
   lib/tests/longest_symbol_kunit.c:29:14: sparse: sparse: '##' failed: concatenation is not a valid token
   lib/tests/longest_symbol_kunit.c:34:23: sparse: sparse: '##' failed: concatenation is not a valid token
   lib/tests/longest_symbol_kunit.c:34:23: sparse: sparse: '##' failed: concatenation is not a valid token
   lib/tests/longest_symbol_kunit.c:37:1: sparse: sparse: '##' failed: concatenation is not a valid token
   lib/tests/longest_symbol_kunit.c:37:1: sparse: sparse: '##' failed: concatenation is not a valid token
   lib/tests/longest_symbol_kunit.c:41:9: sparse: sparse: '##' failed: concatenation is not a valid token
   lib/tests/longest_symbol_kunit.c:41:9: sparse: sparse: '##' failed: concatenation is not a valid token
   lib/tests/longest_symbol_kunit.c:64:47: sparse: sparse: '##' failed: concatenation is not a valid token
   lib/tests/longest_symbol_kunit.c:64:47: sparse: sparse: '##' failed: concatenation is not a valid token
   lib/tests/longest_symbol_kunit.c:28:14: sparse: sparse: Expected ; at end of declaration
   lib/tests/longest_symbol_kunit.c:28:14: sparse: sparse: got nnnng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nnng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nnnng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nnng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nng1h2i3j4k5l6m7ng1h2i3j4k5l6m7n
   lib/tests/longest_symbol_kunit.c:29:14: sparse: sparse: Expected ; at end of declaration
   lib/tests/longest_symbol_kunit.c:29:14: sparse: sparse: got nnnng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nnng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nnnng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nnng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nng1h2i3j4k5l6m7ng1h2i3j4k5l6m7n
   lib/tests/longest_symbol_kunit.c:32:1: sparse: sparse: Expected ; at the end of type declaration
   lib/tests/longest_symbol_kunit.c:32:1: sparse: sparse: got }
   lib/tests/longest_symbol_kunit.c:41:9: sparse: sparse: Expected ) after typeof
   lib/tests/longest_symbol_kunit.c:41:9: sparse: sparse: got nnnng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nnng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nnnng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nnng1h2i3j4k5l6m7ng1h2i3j4k5l6m7nng1h2i3j4k5l6m7ng1h2i3j4k5l6m7n
   lib/tests/longest_symbol_kunit.c:41:9: sparse: sparse: undefined identifier '__right'
   lib/tests/longest_symbol_kunit.c:41:9: sparse: sparse: undefined identifier '__right'

vim +28 lib/tests/longest_symbol_kunit.c

c104c16073b7fd lib/longest_symbol_kunit.c Sergio González Collado 2025-03-02  27  
c104c16073b7fd lib/longest_symbol_kunit.c Sergio González Collado 2025-03-02 @28  noinline int LONGEST_SYM_NAME(void);
c104c16073b7fd lib/longest_symbol_kunit.c Sergio González Collado 2025-03-02  29  noinline int LONGEST_SYM_NAME(void)
c104c16073b7fd lib/longest_symbol_kunit.c Sergio González Collado 2025-03-02  30  {
c104c16073b7fd lib/longest_symbol_kunit.c Sergio González Collado 2025-03-02  31  	return RETURN_LONGEST_SYM;
c104c16073b7fd lib/longest_symbol_kunit.c Sergio González Collado 2025-03-02  32  }
c104c16073b7fd lib/longest_symbol_kunit.c Sergio González Collado 2025-03-02  33  

:::::: The code at line 28 was first introduced by commit
:::::: c104c16073b7fdb3e4eae18f66f4009f6b073d6f Kunit to check the longest symbol length

:::::: TO: Sergio González Collado <sergio.collado@gmail.com>
:::::: CC: Shuah Khan <shuah@kernel.org>

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