[thomas-weissschuh:b4/rust-kunit-assertion 15/16] ld.lld: error: undefined symbol: kunit_string_stream_add

[thomas-weissschuh:b4/rust-kunit-assertion 15/16] ld.lld: error: undefined symbol: kunit_string_stream_add

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/thomas.weissschuh/linux.git b4/rust-kunit-assertion
head:   e8ef2ab596ea6cb29ff501ab4abf4757bf950871
commit: b1f6b44f2151569e88b5bb5e652e31aebffa0d19 [15/16] kunit: msg
config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20261010/202610100031.yvgHqzdD-lkp@intel.com/config)
compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 80cd965b6323b208519f8ab1d5ee86e4ea9862f4)
rustc: rustc 1.96.0 (ac68faa20 2026-05-25)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261010/202610100031.yvgHqzdD-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/202610100031.yvgHqzdD-lkp@intel.com/

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: kunit_string_stream_add
   >>> referenced by kunit.rs:57 (rust/kernel/kunit.rs:57)
   >>>               rust/kernel.o:(kernel::kunit::kunit_rust_assert_format) in archive vmlinux.a
   >>> referenced by kunit.rs:57 (rust/kernel/kunit.rs:57)
   >>>               rust/kernel.o:(kernel::kunit::kunit_rust_assert_format) in archive vmlinux.a
--
>> ld.lld: error: undefined symbol: kunit_assert_print_msg
   >>> referenced by kunit.rs:64 (rust/kernel/kunit.rs:64)
   >>>               rust/kernel.o:(kernel::kunit::kunit_rust_assert_format) in archive vmlinux.a

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