1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */ 3 4 #include <vmlinux.h> 5 #include <bpf/bpf_tracing.h> 6 #include <bpf/bpf_helpers.h> 7 #include <bpf/bpf_core_read.h> 8 #include "bpf_experimental.h" 9 10 struct node_data { 11 int key; 12 int data; 13 struct bpf_rb_node node; 14 }; 15 16 struct node_data2 { 17 int key; 18 struct bpf_rb_node node; 19 int data; 20 }; 21 22 static bool less2(struct bpf_rb_node *a, const struct bpf_rb_node *b) 23 { 24 struct node_data2 *node_a; 25 struct node_data2 *node_b; 26 27 node_a = container_of(a, struct node_data2, node); 28 node_b = container_of(b, struct node_data2, node); 29 30 return node_a->key < node_b->key; 31 } 32 33 #define private(name) SEC(".data." #name) __hidden __attribute__((aligned(8))) 34 private(A) struct bpf_spin_lock glock; 35 private(A) struct bpf_rb_root groot __contains(node_data, node); 36 37 SEC("tc") 38 long rbtree_api_add__add_wrong_type(void *ctx) 39 { 40 struct node_data2 *n; 41 42 n = bpf_obj_new(typeof(*n)); 43 if (!n) 44 return 1; 45 46 bpf_spin_lock(&glock); 47 bpf_rbtree_add(&groot, &n->node, less2); 48 bpf_spin_unlock(&glock); 49 return 0; 50 } 51 52 char _license[] SEC("license") = "GPL"; 53