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From:   Leon Hwang <hffilwlqm@gmail.com>
To:     ast@kernel.org
Cc:     daniel@iogearbox.net, john.fastabend@gmail.com, andrii@kernel.org,
        martin.lau@linux.dev, song@kernel.org, yonghong.song@linux.dev,
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        shuah@kernel.org, hffilwlqm@gmail.com, tangyeechou@gmail.com,
        kernel-patches-bot@fb.com, bpf@vger.kernel.org,
        linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
        linux-trace-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org
Subject: [PATCH bpf-next v4 0/2] bpf, xdp: Add tracepoint to xdp attaching failure
Date:   Sun, 30 Jul 2023 19:49:49 +0800
Message-ID: <20230730114951.74067-1-hffilwlqm@gmail.com>
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This series introduces a new tracepoint in bpf_xdp_link_attach(). By
this tracepoint, error message will be captured when error happens in
dev_xdp_attach(), e.g. invalid attaching flags.

v3 -> v4:
* Fix selftest-crashed issue.

Leon Hwang (2):
  bpf, xdp: Add tracepoint to xdp attaching failure
  selftests/bpf: Add testcase for xdp attaching failure tracepoint

 include/trace/events/xdp.h                    | 17 +++++
 net/core/dev.c                                |  5 +-
 .../selftests/bpf/prog_tests/xdp_attach.c     | 65 +++++++++++++++++++
 .../bpf/progs/test_xdp_attach_fail.c          | 54 +++++++++++++++
 4 files changed, 140 insertions(+), 1 deletion(-)
 create mode 100644 tools/testing/selftests/bpf/progs/test_xdp_attach_fail.c


base-commit: a33d978500acd8fb67efac9773ba0a8502c1ff06
-- 
2.41.0