Commit b9a395f0 authored by Geliang Tang's avatar Geliang Tang Committed by Martin KaFai Lau
Browse files

bpf, btf: Fix return value of register_btf_id_dtor_kfuncs 



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: default avatarGeliang Tang <tanggeliang@kylinos.cn>
Link: https://lore.kernel.org/r/eab65586d7fb0e72f2707d3747c7d4a5d60c823f.1707373307.git.tanggeliang@kylinos.cn


Signed-off-by: default avatarMartin KaFai Lau <martin.lau@kernel.org>
parent e55dad12

kernel/bpf/btf.c

+2 −4
Original line number Diff line number Diff line
@@ -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))