[linux-next:master 2620/2633] kernel/kallsyms.c:314:13: warning: no previous prototype for function 'kallsyms_lookup_buildid'

[linux-next:master 2620/2633] kernel/kallsyms.c:314:13: warning: no previous prototype for function 'kallsyms_lookup_buildid'

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   ec85c95b0c90a17413901b018e8ade7b9eae7cad
commit: fecf694f2b4b583d7740d55f584411b3062afa7e [2620/2633] module: add printk formats to add module build ID to stacktraces
config: riscv-randconfig-r015-20210512 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project a0fed635fe1701470062495a6ffee1c608f3f1bc)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install riscv cross compiling tool for clang build
        # apt-get install binutils-riscv64-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=fecf694f2b4b583d7740d55f584411b3062afa7e
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout fecf694f2b4b583d7740d55f584411b3062afa7e
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=riscv 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   kernel/kallsyms.c:310:71: error: too many arguments to function call, expected 5, have 6
           return !!module_address_lookup(addr, symbolsize, offset, NULL, NULL, namebuf) ||
                    ~~~~~~~~~~~~~~~~~~~~~                                       ^~~~~~~
   include/linux/module.h:745:27: note: 'module_address_lookup' declared here
   static inline const char *module_address_lookup(unsigned long addr,
                             ^
   kernel/kallsyms.c:341:30: error: too many arguments to function call, expected 5, have 6
                                       modname, modbuildid, namebuf);
                                                            ^~~~~~~
   include/linux/module.h:745:27: note: 'module_address_lookup' declared here
   static inline const char *module_address_lookup(unsigned long addr,
                             ^
>> kernel/kallsyms.c:314:13: warning: no previous prototype for function 'kallsyms_lookup_buildid' [-Wmissing-prototypes]
   const char *kallsyms_lookup_buildid(unsigned long addr, unsigned long *symbolsize,
               ^
   kernel/kallsyms.c:314:7: note: declare 'static' if the function is not intended to be used outside of this translation unit
   const char *kallsyms_lookup_buildid(unsigned long addr, unsigned long *symbolsize,
         ^
   static 
   kernel/kallsyms.c:570:12: warning: no previous prototype for function 'arch_get_kallsym' [-Wmissing-prototypes]
   int __weak arch_get_kallsym(unsigned int symnum, unsigned long *value,
              ^
   kernel/kallsyms.c:570:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int __weak arch_get_kallsym(unsigned int symnum, unsigned long *value,
   ^
   static 
   2 warnings and 2 errors generated.

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for LOCKDEP
   Depends on DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT && (FRAME_POINTER || MIPS || PPC || S390 || MICROBLAZE || ARM || ARC || X86)
   Selected by
   - LOCK_STAT && DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT
   - DEBUG_LOCK_ALLOC && DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT


vim +/kallsyms_lookup_buildid +314 kernel/kallsyms.c

   313	
 > 314	const char *kallsyms_lookup_buildid(unsigned long addr, unsigned long *symbolsize,
   315					    unsigned long *offset, char **modname,
   316					    const unsigned char **modbuildid, char *namebuf)
   317	{
   318		const char *ret;
   319	
   320		namebuf[KSYM_NAME_LEN - 1] = 0;
   321		namebuf[0] = 0;
   322	
   323		if (is_ksym_addr(addr)) {
   324			unsigned long pos;
   325	
   326			pos = get_symbol_pos(addr, symbolsize, offset);
   327			/* Grab name */
   328			kallsyms_expand_symbol(get_symbol_offset(pos),
   329					       namebuf, KSYM_NAME_LEN);
   330			if (modname)
   331				*modname = NULL;
   332			if (modbuildid)
   333				*modbuildid = NULL;
   334	
   335			ret = namebuf;
   336			goto found;
   337		}
   338	
   339		/* See if it's in a module or a BPF JITed image. */
   340		ret = module_address_lookup(addr, symbolsize, offset,
   341					    modname, modbuildid, namebuf);
   342		if (!ret)
   343			ret = bpf_address_lookup(addr, symbolsize,
   344						 offset, modname, namebuf);
   345	
   346		if (!ret)
   347			ret = ftrace_mod_address_lookup(addr, symbolsize,
   348							offset, modname, namebuf);
   349	
   350	found:
   351		cleanup_symbol_name(namebuf);
   352		return ret;
   353	}
   354	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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