top_stack 255 kernel/bpf/btf.c u32 top_stack; top_stack 1000 kernel/bpf/btf.c if (env->top_stack == MAX_RESOLVE_DEPTH) top_stack 1008 kernel/bpf/btf.c v = &env->stack[env->top_stack++]; top_stack 1026 kernel/bpf/btf.c env->stack[env->top_stack - 1].next_member = next_member; top_stack 1033 kernel/bpf/btf.c u32 type_id = env->stack[--(env->top_stack)].type_id; top_stack 1043 kernel/bpf/btf.c return env->top_stack ? &env->stack[env->top_stack - 1] : NULL;