* [bpf-next v2 0/2] bpf/helpers: Fix bpf_strnstr len error
@ 2025-08-28 2:52 Rong Tao
0 siblings, 0 replies; only message in thread
From: Rong Tao @ 2025-08-28 2:52 UTC (permalink / raw)
To: andrii.nakryiko, ast, daniel
Cc: rtoax, Rong Tao, Andrii Nakryiko, Martin KaFai Lau,
Eduard Zingerman, Song Liu, Yonghong Song, John Fastabend,
KP Singh, Stanislav Fomichev, Hao Luo, Jiri Olsa, Mykola Lysenko,
Shuah Khan, Viktor Malik,
open list:BPF [GENERAL] (Safe Dynamic Programs and Tools),
open list, open list:KERNEL SELFTEST FRAMEWORK
From: Rong Tao <rongtao@cestc.cn>
Fix bpf_strnstr() wrong 'len' parameter, bpf_strnstr("open", "open", 4)
should return 0 instead of -ENOENT.
Rong Tao (2):
bpf/helpers: bpf_strnstr: Exact match length
selftests/bpf: Add tests for bpf_strnstr
kernel/bpf/helpers.c | 4 +++-
tools/testing/selftests/bpf/progs/string_kfuncs_success.c | 2 ++
2 files changed, 5 insertions(+), 1 deletion(-)
---
v2: Follow Andrii Nakryiko's advise, fix the 'wrong fix';
v1: https://lore.kernel.org/lkml/tencent_65E5988AD52BEC280D22964189505CD6ED06@qq.com/
--
2.51.0
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2025-08-28 2:52 [bpf-next v2 0/2] bpf/helpers: Fix bpf_strnstr len error Rong Tao
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