1 // SPDX-License-Identifier: GPL-2.0 2 // Copyright (c) 2019 Facebook 3 #include "vmlinux.h" 4 #include <bpf/bpf_helpers.h> 5 #include <bpf/bpf_tracing.h> 6 7 char _license[] SEC("license") = "GPL"; 8 9 SEC("raw_tracepoint/consume_skb") 10 int while_true(volatile struct pt_regs* ctx) 11 { 12 int i = 0; 13 14 while (true) { 15 if (PT_REGS_RC(ctx) & 1) 16 i += 3; 17 else 18 i += 7; 19 if (i > 40) 20 break; 21 } 22 23 return i; 24 } 25