From d3e42bb0a329fadff98fcb927714d0a486840e3b Mon Sep 17 00:00:00 2001 From: Martin KaFai Lau Date: Mon, 27 Jan 2020 09:51:45 -0800 Subject: bpf: Reuse log from btf_prase_vmlinux() in btf_struct_ops_init() Instead of using a locally defined "struct bpf_verifier_log log = {}", btf_struct_ops_init() should reuse the "log" from its calling function "btf_parse_vmlinux()". It should also resolve the frame-size too large compiler warning in some ARCH. Fixes: 27ae7997a661 ("bpf: Introduce BPF_PROG_TYPE_STRUCT_OPS") Signed-off-by: Martin KaFai Lau Signed-off-by: Daniel Borkmann Acked-by: Andrii Nakryiko Acked-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20200127175145.1154438-1-kafai@fb.com --- kernel/bpf/bpf_struct_ops.c | 5 ++--- kernel/bpf/btf.c | 2 +- 2 files changed, 3 insertions(+), 4 deletions(-) (limited to 'kernel') diff --git a/kernel/bpf/bpf_struct_ops.c b/kernel/bpf/bpf_struct_ops.c index 8ad1c9ea26b2..042f95534f86 100644 --- a/kernel/bpf/bpf_struct_ops.c +++ b/kernel/bpf/bpf_struct_ops.c @@ -96,12 +96,11 @@ const struct bpf_prog_ops bpf_struct_ops_prog_ops = { static const struct btf_type *module_type; -void bpf_struct_ops_init(struct btf *btf) +void bpf_struct_ops_init(struct btf *btf, struct bpf_verifier_log *log) { s32 type_id, value_id, module_id; const struct btf_member *member; struct bpf_struct_ops *st_ops; - struct bpf_verifier_log log = {}; const struct btf_type *t; char value_name[128]; const char *mname; @@ -172,7 +171,7 @@ void bpf_struct_ops_init(struct btf *btf) member->type, NULL); if (func_proto && - btf_distill_func_proto(&log, btf, + btf_distill_func_proto(log, btf, func_proto, mname, &st_ops->func_models[j])) { pr_warn("Error in parsing func ptr %s in struct %s\n", diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c index b7c1660fb594..8c9d8f266bef 100644 --- a/kernel/bpf/btf.c +++ b/kernel/bpf/btf.c @@ -3643,7 +3643,7 @@ struct btf *btf_parse_vmlinux(void) goto errout; } - bpf_struct_ops_init(btf); + bpf_struct_ops_init(btf, log); btf_verifier_env_free(env); refcount_set(&btf->refcnt, 1); -- cgit