[mingo-tip:master 1788/2335] lib/memcat_p.c:10:8: warning: no previous prototype for function '__memcat_p'

[kernel test robot]

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git master
head:   85293bf3fca6d85608cff1447ce3097583f15fab
commit: f4a35864aeccc248d3c2122bf0a8f2ba77ea8c2f [1788/2335] headers/deps: smp: Optimize <linux/smp.h> dependencies, remove <linux/smp_api.h> inclusion
config: x86_64-randconfig-a001 (https://download.01.org/0day-ci/archive/20220318/202203181728.i1dteMPk-lkp@xxxxxxxxx/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project a6ec1e3d798f8eab43fb3a91028c6ab04e115fcb)
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git/commit/?id=f4a35864aeccc248d3c2122bf0a8f2ba77ea8c2f
        git remote add mingo-tip git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git
        git fetch --no-tags mingo-tip master
        git checkout f4a35864aeccc248d3c2122bf0a8f2ba77ea8c2f
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

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

All warnings (new ones prefixed by >>):

>> lib/memcat_p.c:10:8: warning: no previous prototype for function '__memcat_p' [-Wmissing-prototypes]
   void **__memcat_p(void **a, void **b)
          ^
   lib/memcat_p.c:10:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void **__memcat_p(void **a, void **b)
   ^
   static 
   1 warning generated.


vim +/__memcat_p +10 lib/memcat_p.c

93048c0944150b3 Alexander Shishkin 2018-10-16   4  
93048c0944150b3 Alexander Shishkin 2018-10-16   5  /*
93048c0944150b3 Alexander Shishkin 2018-10-16   6   * Merge two NULL-terminated pointer arrays into a newly allocated
93048c0944150b3 Alexander Shishkin 2018-10-16   7   * array, which is also NULL-terminated. Nomenclature is inspired by
93048c0944150b3 Alexander Shishkin 2018-10-16   8   * memset_p() and memcat() found elsewhere in the kernel source tree.
93048c0944150b3 Alexander Shishkin 2018-10-16   9   */
93048c0944150b3 Alexander Shishkin 2018-10-16 @10  void **__memcat_p(void **a, void **b)

:::::: The code at line 10 was first introduced by commit
:::::: 93048c0944150b316a15f92c41a4d626c8df37fd lib: Fix ia64 bootloader linkage

:::::: TO: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
:::::: CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
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