bpftool: fix BTF raw dump of FWD's fwd_kind

kflag bit determines whether FWD is for struct or union. Use that bit.

Fixes: c93cc69004df ("bpftool: add ability to dump BTF types")
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/tools/bpf/bpftool/btf.c b/tools/bpf/bpftool/btf.c
index 58a2cd002a4b..7317438ecd9e 100644
--- a/tools/bpf/bpftool/btf.c
+++ b/tools/bpf/bpftool/btf.c
@@ -208,8 +208,8 @@ static int dump_btf_type(const struct btf *btf, __u32 id,
                 break;
         }
         case BTF_KIND_FWD: {
-                const char *fwd_kind = BTF_INFO_KIND(t->info) ? "union"
-                                                              : "struct";
+                const char *fwd_kind = BTF_INFO_KFLAG(t->info) ? "union"
+                                                               : "struct";
 
                 if (json_output)
                         jsonw_string_field(w, "fwd_kind", fwd_kind);