linux-kernel - [PATCH bpf-next v3 0/2] bpf: Add kfunc bpf

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Message-ID: <tencent_E3598F975B2A13AFC3A3E08837062E42A908@qq.com>
Date: Tue,  2 Sep 2025 17:18:25 +0800
From: Rong Tao <rtoax@...mail.com>
To: andrii@...nel.org,
	ast@...nel.org,
	vmalik@...hat.com
Cc: rtoax@...mail.com,
	Daniel Borkmann <daniel@...earbox.net>,
	Martin KaFai Lau <martin.lau@...ux.dev>,
	Eduard Zingerman <eddyz87@...il.com>,
	Song Liu <song@...nel.org>,
	Yonghong Song <yonghong.song@...ux.dev>,
	John Fastabend <john.fastabend@...il.com>,
	KP Singh <kpsingh@...nel.org>,
	Stanislav Fomichev <sdf@...ichev.me>,
	Hao Luo <haoluo@...gle.com>,
	Jiri Olsa <jolsa@...nel.org>,
	Mykola Lysenko <mykolal@...com>,
	Shuah Khan <shuah@...nel.org>,
	Rong Tao <rongtao@...tc.cn>,
	bpf@...r.kernel.org (open list:BPF [GENERAL] (Safe Dynamic Programs and Tools)),
	linux-kernel@...r.kernel.org (open list),
	linux-kselftest@...r.kernel.org (open list:KERNEL SELFTEST FRAMEWORK)
Subject: [PATCH bpf-next v3 0/2] bpf: Add kfunc bpf_strcasecmp()

Kfunc already support bpf_strcmp, this patchset introduce bpf_strcasecmp
and add some selftests.

Rong Tao (2):
  bpf: add bpf_strcasecmp kfunc
  selftests/bpf: Test kfunc bpf_strcasecmp

 kernel/bpf/helpers.c                          | 68 +++++++++++++------
 .../selftests/bpf/prog_tests/string_kfuncs.c  |  1 +
 .../bpf/progs/string_kfuncs_failure1.c        |  6 ++
 .../bpf/progs/string_kfuncs_failure2.c        |  1 +
 .../bpf/progs/string_kfuncs_success.c         |  5 ++
 5 files changed, 61 insertions(+), 20 deletions(-)

---
v3: Update prog_tests/string_kfuncs.c for "strcasecmp";
v2: Remove __ign prefix from __bpf_strcasecmp and add E2BIG failure test;
    https://lore.kernel.org/lkml/tencent_8646158457D4511C447C833B21B3ACF6CB07@qq.com/
v1: https://lore.kernel.org/lkml/tencent_5AE811A28781BE106AD6CDE59F4ADD2BFA06@qq.com/
-- 
2.51.0