[akpm-mm:mm-nonmm-unstable 38/57] ERROR: modpost: "__sync_add_and_fetch_4" [kernel/trace/ring_buffer_benchmark.ko] undefined!

[akpm-mm:mm-nonmm-unstable 38/57] ERROR: modpost: "__sync_add_and_fetch_4" [kernel/trace/ring_buffer_benchmark.ko] undefined!

[kernel test robot]

:::::: 
:::::: Manual check reason: "only suspicious fbc files changed"
:::::: 

BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: David Hildenbrand <david@kernel.org>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Linux Memory Management List <linux-mm@kvack.org>
CC: mm-commits@vger.kernel.org
TO: Konstantin Khorenko <khorenko@virtuozzo.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Linux Memory Management List <linux-mm@kvack.org>
CC: Peter Oberparleiter <oberpar@linux.ibm.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-nonmm-unstable
head:   e672d8e8696b8a51ad9326bf38a97f2011d6ba31
commit: 5f17c8a4261c0fb72783bc1d6cb2ec4b1611897c [38/57] gcov: use atomic counter updates to fix concurrent access crashes
:::::: branch date: 25 hours ago
:::::: commit date: 8 days ago
config: csky-allmodconfig (https://download.01.org/0day-ci/archive/20260502/202605022314.CyfLKqrA-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260502/202605022314.CyfLKqrA-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/r/202605022314.CyfLKqrA-lkp@intel.com/

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "__sync_add_and_fetch_4" [kernel/trace/ring_buffer_benchmark.ko] undefined!
>> ERROR: modpost: "__sync_add_and_fetch_4" [kernel/trace/preemptirq_delay_test.ko] undefined!
>> ERROR: modpost: "__sync_add_and_fetch_4" [kernel/trace/synth_event_gen_test.ko] undefined!
>> ERROR: modpost: "__sync_add_and_fetch_4" [kernel/trace/kprobe_event_gen_test.ko] undefined!
>> ERROR: modpost: "__sync_add_and_fetch_4" [kernel/trace/remote_test.ko] undefined!
>> ERROR: modpost: "__sync_add_and_fetch_4" [io_uring/mock_file.ko] undefined!
>> ERROR: modpost: "__sync_add_and_fetch_4" [net/rds/rds.ko] undefined!
>> ERROR: modpost: "__sync_add_and_fetch_4" [net/rds/rds_rdma.ko] undefined!
>> ERROR: modpost: "__sync_add_and_fetch_4" [net/rds/rds_tcp.ko] undefined!

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki