Merge branch 'bpf-add-kfunc-bpf_strncasecmp'

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Yuzuki Ishiyama says:

====================
bpf: Add kfunc bpf_strncasecmp()

This patchset introduces bpf_strncasecmp to allow case-insensitive and
limited-length string comparison. This is useful for parsing protocol
headers like HTTP.
---

Changes in v5:
- Fixed the test function numbering

Changes in v4:
- Updated the loop variable to maintain style consistency

Changes in v3:
- Use ternary operator to maintain style consistency
- Reverted unnecessary doc comment about XATTR_SIZE_MAX

Changes in v2:
- Compute max_sz upfront and remove len check from the loop body
- Document that @len is limited by XATTR_SIZE_MAX
====================

Link: https://patch.msgid.link/20260121033328.1850010-1-ishiyama@hpc.is.uec.ac.jp
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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This commit is contained in:

Alexei Starovoitov 2026-01-21 09:42:53 -08:00

parent d0f5d4f8f3 f4924ad0b1

commit d73cbe2c14

5 changed files with 40 additions and 5 deletions

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30

kernel/bpf/helpers.c

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1

tools/testing/selftests/bpf/prog_tests/string_kfuncs.c

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6

tools/testing/selftests/bpf/progs/string_kfuncs_failure1.c

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1

tools/testing/selftests/bpf/progs/string_kfuncs_failure2.c

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7

tools/testing/selftests/bpf/progs/string_kfuncs_success.c

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