[cilium:pr/ndo_peer2 4/6] include/linux/stddef.h:8:14: error: called object is not a function or function pointer

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

tree:   https://github.com/cilium/linux.git pr/ndo_peer2
head:   4520680ca55ca7c62b1f520cd43641c93cb4a55a
commit: ff1a15530833e0813ac71476e30905bd5d486667 [4/6] bpf, netkit, veth: Add indirect call wrapper for ndo_get_peer_dev
config: x86_64-randconfig-012-20231103 (https://download.01.org/0day-ci/archive/20231103/202311030746.YllMeEVn-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231103/202311030746.YllMeEVn-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/202311030746.YllMeEVn-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/net/sock.h:62,
                    from include/linux/sock_diag.h:8,
                    from net/core/filter.c:27:
   net/core/filter.c: In function 'netdev_get_peer':
>> include/linux/stddef.h:8:14: error: called object is not a function or function pointer
       8 | #define NULL ((void *)0)
         |              ^
   include/linux/indirect_call_wrapper.h:22:35: note: in definition of macro 'INDIRECT_CALL_2'
      22 |                 likely(f == f2) ? f2(__VA_ARGS__) :                     \
         |                                   ^~
   include/net/netkit.h:43:25: note: in expansion of macro 'NULL'
      43 | # define peer_netkit    NULL
         |                         ^~~~
   net/core/filter.c:2479:40: note: in expansion of macro 'peer_netkit'
    2479 |                                        peer_netkit, peer_veth, dev);
         |                                        ^~~~~~~~~~~
>> include/linux/stddef.h:8:14: error: called object is not a function or function pointer
       8 | #define NULL ((void *)0)
         |              ^
   include/linux/indirect_call_wrapper.h:18:35: note: in definition of macro 'INDIRECT_CALL_1'
      18 |                 likely(f == f1) ? f1(__VA_ARGS__) : f(__VA_ARGS__);     \
         |                                   ^~
   net/core/filter.c:2478:24: note: in expansion of macro 'INDIRECT_CALL_2'
    2478 |                 return INDIRECT_CALL_2(ops->ndo_get_peer_dev,
         |                        ^~~~~~~~~~~~~~~
   include/net/veth.h:12:25: note: in expansion of macro 'NULL'
      12 | #define peer_veth       NULL
         |                         ^~~~
   net/core/filter.c:2479:53: note: in expansion of macro 'peer_veth'
    2479 |                                        peer_netkit, peer_veth, dev);
         |                                                     ^~~~~~~~~


vim +8 include/linux/stddef.h

^1da177e4c3f41 Linus Torvalds   2005-04-16  6  
^1da177e4c3f41 Linus Torvalds   2005-04-16  7  #undef NULL
^1da177e4c3f41 Linus Torvalds   2005-04-16 @8  #define NULL ((void *)0)
6e218287432472 Richard Knutsson 2006-09-30  9  

:::::: The code at line 8 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@ppc970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@ppc970.osdl.org>

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