On 7/23/24 20:19, Ming Lei wrote:
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.
Could you give me more context?
Give me a link of an example code or something?
Or explain the use case?
Thanks!
Cc: Benjamin Tissoires <bentiss@xxxxxxxxxx>
Cc: Jiri Kosina <jikos@xxxxxxxxxx>
Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx>
---
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)
