[PATCH bpf-next v5 1/3] bpf, btf: Fix return value of register_btf_id_dtor_kfuncs

[Geliang Tang <geliang@xxxxxxxxxx>]

From: Geliang Tang <tanggeliang@xxxxxxxxxx>

The same as __register_btf_kfunc_id_set(), to let the modules with
stripped btf section loaded, this patch changes the return value of
register_btf_id_dtor_kfuncs() too from -ENOENT to 0 when btf is NULL.

Signed-off-by: Geliang Tang <tanggeliang@xxxxxxxxxx>
---
 kernel/bpf/btf.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index f7725cb6e564..16eb937eca46 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -8219,10 +8219,8 @@ int register_btf_id_dtor_kfuncs(const struct btf_id_dtor_kfunc *dtors, u32 add_c
 			pr_err("missing vmlinux BTF, cannot register dtor kfuncs\n");
 			return -ENOENT;
 		}
-		if (owner && IS_ENABLED(CONFIG_DEBUG_INFO_BTF_MODULES)) {
-			pr_err("missing module BTF, cannot register dtor kfuncs\n");
-			return -ENOENT;
-		}
+		if (owner && IS_ENABLED(CONFIG_DEBUG_INFO_BTF_MODULES))
+			pr_warn("missing module BTF, cannot register dtor kfuncs\n");
 		return 0;
 	}
 	if (IS_ERR(btf))
-- 
2.40.1