[jimc:lukas-v3.0 20/24] lib/dynamic_debug.c:621:6: sparse: sparse: symbol 'skip_spaces_and_coma' was not declared. Should it be static?

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

tree:   https://github.com/jimc/linux.git lukas-v3.0
head:   1f42080421213a7819e069d5b6d22cef0b6c9c61
commit: 34cd8a2374f70a56e599ee3e5d786c989d3cb096 [20/24] dyndbg: add skip_spaces_and_coma()
config: i386-randconfig-061-20231227 (https://download.01.org/0day-ci/archive/20231228/202312280200.lVCy4vxu-lkp@intel.com/config)
compiler: ClangBuiltLinux 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/20231228/202312280200.lVCy4vxu-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/202312280200.lVCy4vxu-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> lib/dynamic_debug.c:621:6: sparse: sparse: symbol 'skip_spaces_and_coma' was not declared. Should it be static?
   lib/dynamic_debug.c: note: in included file (through include/linux/mmzone.h, include/linux/gfp.h, include/linux/umh.h, include/linux/kmod.h, ...):
   include/linux/page-flags.h:242:46: sparse: sparse: self-comparison always evaluates to false

vim +/skip_spaces_and_coma +621 lib/dynamic_debug.c

   620	
 > 621	char *skip_spaces_and_coma(const char *str)
   622	{
   623		str = skip_spaces(str);
   624		if (*str == ',')
   625			str = skip_spaces(++str);
   626		return (char *)str;
   627	}
   628	

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