[PATCH 0/2] selftests: riscv: vector: Fix the checks of the child's exit status

[Danish Khateeb <danishkhateeb03@gmail.com>]

Two fixes for vstate_exec_nolibc, found through a kernel test robot
warning [1]. Patch 1 checks the return value of waitpid(), which GCC
warns about. Patch 2 fixes a check which never matches, so that a child
reporting a failure no longer lets the tests pass.

Tested in QEMU (virt, rv64 with and without V) on a v7.3-rc1 defconfig
kernel, running vstate_prctl as init:

- vstate_prctl passes 13/13 with and without the series.
- With the child's vstate_ctrl check forced to fail, it still passes
  13/13 without patch 2, and fails the 6 affected tests with it.
- The warning is gone with GCC 14.2 and 16.2.

[1] https://lore.kernel.org/r/202609250003.hvssJlRZ-lkp@intel.com/

Danish Khateeb (2):
  selftests: riscv: vstate_exec_nolibc: Check the return value of
    waitpid()
  selftests: riscv: vector: Fix the check for children exiting with -1

 tools/testing/selftests/riscv/vector/v_helpers.c          | 2 +-
 tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c | 6 +++++-
 2 files changed, 6 insertions(+), 2 deletions(-)


base-commit: a06776565b9e73512e880a95b66c198ae8e7e24a
-- 
2.55.0