[PATCH bpf-next v1 4/8] libbpf: Export btf__find_by_name_kind_own()

[Ihor Solodrai <ihor.solodrai@linux.dev>]

btf__find_by_name_kind() searches the base BTF before the split BTF,
so in case of a name collision between base and split it always
returns a base type. Tools that process split BTF may need to restrict
a lookup to the split's own types.

The internal helper btf__find_by_name_kind_own() already does exactly
that. Make it a public API.

Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev>
---
 tools/lib/bpf/btf.h             | 2 ++
 tools/lib/bpf/libbpf.map        | 1 +
 tools/lib/bpf/libbpf_internal.h | 2 --
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/lib/bpf/btf.h b/tools/lib/bpf/btf.h
index 1a31f2da947f..587172c0de08 100644
--- a/tools/lib/bpf/btf.h
+++ b/tools/lib/bpf/btf.h
@@ -172,6 +172,8 @@ LIBBPF_API __s32 btf__find_by_name(const struct btf *btf,
 				   const char *type_name);
 LIBBPF_API __s32 btf__find_by_name_kind(const struct btf *btf,
 					const char *type_name, __u32 kind);
+LIBBPF_API __s32 btf__find_by_name_kind_own(const struct btf *btf,
+					    const char *type_name, __u32 kind);
 LIBBPF_API __u32 btf__type_cnt(const struct btf *btf);
 LIBBPF_API const struct btf *btf__base_btf(const struct btf *btf);
 LIBBPF_API const struct btf_type *btf__type_by_id(const struct btf *btf,
diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map
index b731df19ae69..08ab2ea881fb 100644
--- a/tools/lib/bpf/libbpf.map
+++ b/tools/lib/bpf/libbpf.map
@@ -460,5 +460,6 @@ LIBBPF_1.8.0 {
 	global:
 		bpf_program__attach_tracing_multi;
 		bpf_program__clone;
+		btf__find_by_name_kind_own;
 		btf__new_empty_opts;
 } LIBBPF_1.7.0;
diff --git a/tools/lib/bpf/libbpf_internal.h b/tools/lib/bpf/libbpf_internal.h
index d5b7db703b3f..7a74abb904f8 100644
--- a/tools/lib/bpf/libbpf_internal.h
+++ b/tools/lib/bpf/libbpf_internal.h
@@ -596,8 +596,6 @@ typedef int (*type_id_visit_fn)(__u32 *type_id, void *ctx);
 typedef int (*str_off_visit_fn)(__u32 *str_off, void *ctx);
 int btf_ext_visit_type_ids(struct btf_ext *btf_ext, type_id_visit_fn visit, void *ctx);
 int btf_ext_visit_str_offs(struct btf_ext *btf_ext, str_off_visit_fn visit, void *ctx);
-__s32 btf__find_by_name_kind_own(const struct btf *btf, const char *type_name,
-				 __u32 kind);
 
 /* handle direct returned errors */
 static inline int libbpf_err(int ret)
-- 
2.55.0