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Message-ID: <20230730114951.74067-1-hffilwlqm@gmail.com>
Date: Sun, 30 Jul 2023 19:49:49 +0800
From: Leon Hwang <hffilwlqm@...il.com>
To: ast@...nel.org
Cc: daniel@...earbox.net, john.fastabend@...il.com, andrii@...nel.org,
martin.lau@...ux.dev, song@...nel.org, yonghong.song@...ux.dev,
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shuah@...nel.org, hffilwlqm@...il.com, tangyeechou@...il.com,
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Subject: [PATCH bpf-next v4 0/2] bpf, xdp: Add tracepoint to xdp attaching failure
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
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