[PATCH] bpf: export btf_find_by_name_kind and bpf_base_func_proto

[Ming Lei <ming.lei@redhat.com>]

Export btf_find_by_name_kind and bpf_base_func_proto, so that kernel
module can use them.

Almost all existed struct_ops users(hid, sched_ext, ...) need the two APIs.

Without this change, hid-bpf can't be built as module.

Cc: Benjamin Tissoires <bentiss@kernel.org>
Cc: Jiri Kosina <jikos@kernel.org>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
---
 kernel/bpf/btf.c     | 1 +
 kernel/bpf/helpers.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index d5019c4454d6..fdc4c0c1829d 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -567,6 +567,7 @@ s32 btf_find_by_name_kind(const struct btf *btf, const char *name, u8 kind)
 
 	return -ENOENT;
 }
+EXPORT_SYMBOL_GPL(btf_find_by_name_kind);
 
 s32 bpf_find_btf_id(const char *name, u32 kind, struct btf **btf_p)
 {
diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c
index b5f0adae8293..18d1a76f96d2 100644
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -2033,6 +2033,7 @@ bpf_base_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
 		return NULL;
 	}
 }
+EXPORT_SYMBOL_GPL(bpf_base_func_proto);
 
 void bpf_list_head_free(const struct btf_field *field, void *list_head,
 			struct bpf_spin_lock *spin_lock)
-- 
2.45.2