| // SPDX-License-Identifier: GPL-2.0 | |
| #include <linux/bpf.h> | |
| #include <bpf/bpf_helpers.h> | |
| #include "bpf_misc.h" | |
| __noinline | |
| int subprog_tc(struct __sk_buff *skb) | |
| { | |
| int ret = 1; | |
| __sink(skb); | |
| __sink(ret); | |
| /* let verifier know that 'subprog_tc' can change pointers to skb->data */ | |
| bpf_skb_change_proto(skb, 0, 0); | |
| return ret; | |
| } | |
| SEC("tc") | |
| int entry_tc(struct __sk_buff *skb) | |
| { | |
| return subprog_tc(skb); | |
| } | |
| char __license[] SEC("license") = "GPL"; |