linux-kernel - toeplitz.c:335:23: warning: excess elements in struct initializer

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Date:   Tue, 19 Jul 2022 08:07:44 +0800
From:   kernel test robot <lkp@...el.com>
To:     Coco Li <lixiaoyan@...gle.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Willem de Bruijn <willemb@...gle.com>
Subject: toeplitz.c:335:23: warning: excess elements in struct initializer

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   80e19f34c2887a8881084b7bb7480e9544d56b91
commit: 5ebfb4cc3048380b43506ffc71b9cf8b83128989 selftests/net: toeplitz test
date:   12 months ago
reproduce: make O=/tmp/kselftest -C tools/testing/selftests

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

   toeplitz.c: In function 'create_ring':
   toeplitz.c:334:16: error: variable 'args' has initializer but incomplete type
     334 |         struct fanout_args args = {
         |                ^~~~~~~~~~~
   toeplitz.c:335:18: error: 'struct fanout_args' has no member named 'id'
     335 |                 .id = 1,
         |                  ^~
>> toeplitz.c:335:23: warning: excess elements in struct initializer
     335 |                 .id = 1,
         |                       ^
   toeplitz.c:335:23: note: (near initialization for 'args')
   toeplitz.c:336:18: error: 'struct fanout_args' has no member named 'type_flags'
     336 |                 .type_flags = PACKET_FANOUT_CPU,
         |                  ^~~~~~~~~~
   In file included from toeplitz.c:33:
>> ../../../../usr/include/linux/if_packet.h:63:41: warning: excess elements in struct initializer
      63 | #define PACKET_FANOUT_CPU               2
         |                                         ^
   toeplitz.c:336:31: note: in expansion of macro 'PACKET_FANOUT_CPU'
     336 |                 .type_flags = PACKET_FANOUT_CPU,
         |                               ^~~~~~~~~~~~~~~~~
   ../../../../usr/include/linux/if_packet.h:63:41: note: (near initialization for 'args')
      63 | #define PACKET_FANOUT_CPU               2
         |                                         ^
   toeplitz.c:336:31: note: in expansion of macro 'PACKET_FANOUT_CPU'
     336 |                 .type_flags = PACKET_FANOUT_CPU,
         |                               ^~~~~~~~~~~~~~~~~
   toeplitz.c:337:18: error: 'struct fanout_args' has no member named 'max_num_members'
     337 |                 .max_num_members = RSS_MAX_CPUS
         |                  ^~~~~~~~~~~~~~~
   toeplitz.c:64:22: warning: excess elements in struct initializer
      64 | #define RSS_MAX_CPUS (1 << 16)  /* real constraint is PACKET_FANOUT_MAX */
         |                      ^
   toeplitz.c:337:36: note: in expansion of macro 'RSS_MAX_CPUS'
     337 |                 .max_num_members = RSS_MAX_CPUS
         |                                    ^~~~~~~~~~~~
   toeplitz.c:64:22: note: (near initialization for 'args')
      64 | #define RSS_MAX_CPUS (1 << 16)  /* real constraint is PACKET_FANOUT_MAX */
         |                      ^
   toeplitz.c:337:36: note: in expansion of macro 'RSS_MAX_CPUS'
     337 |                 .max_num_members = RSS_MAX_CPUS
         |                                    ^~~~~~~~~~~~
   toeplitz.c:334:28: error: storage size of 'args' isn't known
     334 |         struct fanout_args args = {
         |                            ^~~~
>> toeplitz.c:334:28: warning: unused variable 'args' [-Wunused-variable]

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