selftests/bpf: Update kfuncs using btf_struct_meta to new variants

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Update selftests to use the new non-_impl kfuncs marked with
KF_IMPLICIT_ARGS by removing redundant declarations and macros from
bpf_experimental.h (the new kfuncs are present in the vmlinux.h) and
updating relevant callsites.

Fix spin_lock verifier-log matching for lock_id_kptr_preserve by
accepting variable instruction numbers. The calls to kfuncs with
implicit arguments do not have register moves (e.g. r5 = 0)
corresponding to dummy arguments anymore, so the order of instructions
has shifted.

Acked-by: Mykyta Yatsenko <yatsenko@meta.com>
Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20260327203241.3365046-2-ihor.solodrai@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Ihor Solodrai 2026-03-27 13:32:41 -07:00 • committed by Alexei Starovoitov

parent d457072576

commit 101a9d9df8

3 changed files with 9 additions and 156 deletions

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156

tools/testing/selftests/bpf/bpf_experimental.h

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5

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

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4

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

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