Re: [PATCH bpf-next] xsk: support AF_PACKET

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

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Hi Xuan,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on bpf-next/master]

url:    https://github.com/0day-ci/linux/commits/Xuan-Zhuo/xsk-support-AF_PACKET/20210528-140828
base:   https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master
config: x86_64-randconfig-a013-20210528 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 6505c630407c5feec818f0bb1c284f9eeebf2071)
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 x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        # https://github.com/0day-ci/linux/commit/814526a7683da5d39bbe21f94f18df3bb85a07e7
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Xuan-Zhuo/xsk-support-AF_PACKET/20210528-140828
        git checkout 814526a7683da5d39bbe21f94f18df3bb85a07e7
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

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 >>):

   In file included from net/packet/af_packet.c:93:
   In file included from net/packet/internal.h:6:
>> include/net/xdp_sock.h:106:6: warning: no previous prototype for function 'xsk_add_pack' [-Wmissing-prototypes]
   void xsk_add_pack(struct xsk_packet *xpt)
        ^
   include/net/xdp_sock.h:106:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void xsk_add_pack(struct xsk_packet *xpt)
   ^
   static 
>> include/net/xdp_sock.h:110:6: warning: no previous prototype for function '__xsk_remove_pack' [-Wmissing-prototypes]
   void __xsk_remove_pack(struct xsk_packet *xpt)
        ^
   include/net/xdp_sock.h:110:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void __xsk_remove_pack(struct xsk_packet *xpt)
   ^
   static 
   2 warnings generated.


vim +/xsk_add_pack +106 include/net/xdp_sock.h

   105	
 > 106	void xsk_add_pack(struct xsk_packet *xpt)
   107	{
   108	}
   109	
 > 110	void __xsk_remove_pack(struct xsk_packet *xpt)
   111	{
   112	}
   113	

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

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