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