tnum_is_unknown   490 kernel/bpf/verifier.c 				if (!tnum_is_unknown(reg->var_off)) {
tnum_is_unknown  6224 kernel/bpf/verifier.c 		if (!tnum_is_unknown(reg->var_off)) {
tnum_is_unknown  6235 kernel/bpf/verifier.c 	if (!tnum_is_unknown(enforce_attach_type_range) &&