bpf/helpers: Fix bpf_strnstr len error

[bpf-next v2 0/2] bpf/helpers: Fix bpf_strnstr len error

Rong Tao posted 2 patches 1 month ago

Only 0 patches received!

kernel/bpf/helpers.c                                      | 4 +++-
tools/testing/selftests/bpf/progs/string_kfuncs_success.c | 2 ++
2 files changed, 5 insertions(+), 1 deletion(-)

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[bpf-next v2 0/2] bpf/helpers: Fix bpf_strnstr len error

Posted by Rong Tao 1 month ago

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