1 /* SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) */ 2 #include <linux/bpf.h> 3 #include <bpf/bpf_helpers.h> 4 5 struct { 6 __uint(type, BPF_MAP_TYPE_HASH); 7 __type(key, __u32); 8 __type(value, long); 9 __uint(max_entries, 2); 10 } htab SEC(".maps"); 11 12 struct { 13 __uint(type, BPF_MAP_TYPE_ARRAY); 14 __type(key, __u32); 15 __type(value, long); 16 __uint(max_entries, 2); 17 } array SEC(".maps"); 18 19 /* Sample program which should always load for testing control paths. */ 20 SEC("xdp") int func() 21 { 22 __u64 key64 = 0; 23 __u32 key = 0; 24 long *value; 25 26 value = bpf_map_lookup_elem(&htab, &key); 27 if (!value) 28 return 1; 29 value = bpf_map_lookup_elem(&array, &key64); 30 if (!value) 31 return 1; 32 33 return 0; 34 } 35