After HID-BPF struct_ops was merged into 6.11-rc0, there are a few
mishaps:
- the bpf_wq API changed and needs to be updated here
- libbpf now auto-attach all the struct_ops it sees in the bpf object,
leading to attempting at attaching them multiple times
Fix the selftests but also prevent the same struct_ops to be attached
more than once as this enters various locks, confusions, and kernel
oopses.
Signed-off-by: Benjamin Tissoires <bentiss@xxxxxxxxxx>
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Benjamin Tissoires (4):
selftests/hid: fix bpf_wq new API
selftests/hid: disable struct_ops auto-attach
HID: bpf: prevent the same struct_ops to be attached more than once
selftests/hid: add test for attaching multiple time the same struct_ops
drivers/hid/bpf/hid_bpf_struct_ops.c | 5 +++++
tools/testing/selftests/hid/hid_bpf.c | 26 ++++++++++++++++++++++
tools/testing/selftests/hid/progs/hid.c | 2 +-
.../testing/selftests/hid/progs/hid_bpf_helpers.h | 2 +-
4 files changed, 33 insertions(+), 2 deletions(-)
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base-commit: 6e504d2c61244a01226c5100c835e44fb9b85ca8
change-id: 20240723-fix-6-11-bpf-cfa63dcda5bc
Best regards,
--
Benjamin Tissoires <bentiss@xxxxxxxxxx>
