tools/testing/selftests/bpf/progs/test_global_func7.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /* Copyright (c) 2020 Facebook */
   3 #include <stddef.h>
   4 #include <linux/bpf.h>
   5 #include <bpf/bpf_helpers.h>
   6
   7 __attribute__ ((noinline))
   8 void foo(struct __sk_buff *skb)
   9 {
  10         skb->tc_index = 0;
  11 }
  12
  13 SEC("classifier/test")
  14 int test_cls(struct __sk_buff *skb)
  15 {
  16         foo(skb);
  17         return 0;
  18 }