[PATCH bpf-next v2 0/2] Fix test_probe_user on s390x

[Ilya Leoshkevich <iii@linux.ibm.com>]

Hi,

This is a fix for [1]: test_probe_user fails on s390x, because it hooks
only connect(), but not socketcall(SYS_CONNECT).

Patch 1 adds this quirk to BPF_KSYSCALL documentation.
Patch 2 fixes the test by attaching a prog to socketcall().

Best regards,
Ilya

[1] https://lore.kernel.org/bpf/06631b122b9bd6258139a36b971bba3e79543503.camel@linux.ibm.com/

v1: https://lore.kernel.org/bpf/20220723020344.21699-1-iii@linux.ibm.com/
v1 -> v2: Add CONFIG_ prefix to CLONE_BACKWARDS* symbols (Jiri).
          Change the type of prog_names to make checkpatch happy.
          Use prog_count everywhere (Jiri).
          #ifdef out handle_sys_socketcall() on non-s390x (Jiri).

Ilya Leoshkevich (2):
  libbpf: Extend BPF_KSYSCALL documentation
  selftests/bpf: Attach to socketcall() in test_probe_user

 tools/lib/bpf/bpf_tracing.h                   | 15 +++++---
 .../selftests/bpf/prog_tests/probe_user.c     | 35 +++++++++++++------
 .../selftests/bpf/progs/test_probe_user.c     | 32 +++++++++++++++--
 3 files changed, 65 insertions(+), 17 deletions(-)

-- 
2.35.3