[PATCH bpf-next v3 0/2] Add kfuncs bpf_strcasestr and bpf_strncasestr

[Rong Tao]

From: Rong Tao <rongtao@xxxxxxxx>

Add kfuncs bpf_strcasestr and bpf_strncasestr, which are extensions of
bpf_strstr and bpf_strnstr, suitable for more scenarios.

Rong Tao (2):
  bpf: add bpf_strcasestr,bpf_strncasestr kfuncs
  selftests/bpf: Test bpf_strcasestr,bpf_strncasestr kfuncs

 kernel/bpf/helpers.c                          | 97 +++++++++++++++----
 .../selftests/bpf/prog_tests/string_kfuncs.c  |  2 +
 .../bpf/progs/string_kfuncs_failure1.c        | 12 +++
 .../bpf/progs/string_kfuncs_failure2.c        |  2 +
 .../bpf/progs/string_kfuncs_success.c         | 10 ++
 5 files changed, 102 insertions(+), 21 deletions(-)

--- 
v3: keep __bpf_strnstr() static and compress some tests.
v2: remove extra __bpf_kfunc and fix comment of bpf_strncasestr().
    https://lore.kernel.org/all/tencent_6D228941AB904DD6E1E58C8ACDEBEC280C06@xxxxxx/
v1: https://lore.kernel.org/all/tencent_8AF4D15B4475031E2185ACDE4B1495995707@xxxxxx/
-- 
2.51.0