Christian Brauner 07d35cec28 vfs: use __struct_size() in the fdtable KUnit test ...

sparse doesn't know __builtin_dynamic_object_size() and so the two size
checks in the fdtable test fall apart on every config where the compiler
has __counted_by_ptr:

  fs/tests/fdtable_kunit.c:25:9: sparse: undefined identifier '__builtin_dynamic_object_size'
  fs/tests/fdtable_kunit.c:25:9: sparse: incompatible types for operation (==):

Use __struct_size() instead. Every compiler that has __counted_by_ptr also
has __builtin_dynamic_object_size() so it expands to the same builtin and
the test checks the same thing. sparse lacks the builtin and gets the
__builtin_object_size() fallback which it does understand.

Fixes: 501cbbd276 ("vfs: Add KUnit tests for fdtable")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202609111337.fBSfTIpR-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202609111828.SjerhPyO-lkp@intel.com/
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>

2026-09-11 14:47:49 +02:00

..

.kunitconfig

vfs: Add KUnit tests for fdtable

2026-09-10 09:32:48 +02:00

binfmt_elf_kunit.c

execve: Move KUnit tests to tests/ subdirectory

2024-07-22 18:25:47 -07:00

exec_kunit.c

fs/tests: exec: Remove bad test vector

2026-03-18 11:41:53 -07:00

fdtable_kunit.c

vfs: use __struct_size() in the fdtable KUnit test

2026-09-11 14:47:49 +02:00