[PATCH bpf-next v4 1/6] libbpf: expose resolve_func_ptr() through libbpf_internal.h.

[thinker.li@xxxxxxxxx]

From: Kui-Feng Lee <thinker.li@xxxxxxxxx>

bpftool is going to reuse this helper function to support shadow types of
struct_ops maps.

Signed-off-by: Kui-Feng Lee <thinker.li@xxxxxxxxx>
---
 tools/lib/bpf/libbpf.c          | 2 +-
 tools/lib/bpf/libbpf_internal.h | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index 01f407591a92..ef8fd20f33ca 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -2145,7 +2145,7 @@ skip_mods_and_typedefs(const struct btf *btf, __u32 id, __u32 *res_id)
 	return t;
 }
 
-static const struct btf_type *
+const struct btf_type *
 resolve_func_ptr(const struct btf *btf, __u32 id, __u32 *res_id)
 {
 	const struct btf_type *t;
diff --git a/tools/lib/bpf/libbpf_internal.h b/tools/lib/bpf/libbpf_internal.h
index ad936ac5e639..17e6d381da6a 100644
--- a/tools/lib/bpf/libbpf_internal.h
+++ b/tools/lib/bpf/libbpf_internal.h
@@ -234,6 +234,8 @@ struct btf_type;
 struct btf_type *btf_type_by_id(const struct btf *btf, __u32 type_id);
 const char *btf_kind_str(const struct btf_type *t);
 const struct btf_type *skip_mods_and_typedefs(const struct btf *btf, __u32 id, __u32 *res_id);
+/* This function is exposed to bpftool */
+const struct btf_type *resolve_func_ptr(const struct btf *btf, __u32 id, __u32 *res_id);
 
 static inline enum btf_func_linkage btf_func_linkage(const struct btf_type *t)
 {
-- 
2.34.1