1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* Copyright (c) 2018 Facebook */ 3 #include <linux/bpf.h> 4 #include <bpf/bpf_helpers.h> 5 #include "bpf_legacy.h" 6 7 struct ipv_counts { 8 unsigned int v4; 9 unsigned int v6; 10 }; 11 12 struct { 13 __uint(type, BPF_MAP_TYPE_ARRAY); 14 __uint(max_entries, 4); 15 __type(key, int); 16 __type(value, struct ipv_counts); 17 } btf_map SEC(".maps"); 18 19 __attribute__((noinline)) 20 int test_long_fname_2(void) 21 { 22 struct ipv_counts *counts; 23 int key = 0; 24 25 counts = bpf_map_lookup_elem(&btf_map, &key); 26 if (!counts) 27 return 0; 28 29 counts->v6++; 30 31 return 0; 32 } 33 34 __attribute__((noinline)) 35 int test_long_fname_1(void) 36 { 37 return test_long_fname_2(); 38 } 39 40 SEC("dummy_tracepoint") 41 int _dummy_tracepoint(void *arg) 42 { 43 return test_long_fname_1(); 44 } 45 46 char _license[] SEC("license") = "GPL"; 47