From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- tools/testing/selftests/bpf/sample_map_ret0.c | 34 +++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 tools/testing/selftests/bpf/sample_map_ret0.c (limited to 'tools/testing/selftests/bpf/sample_map_ret0.c') diff --git a/tools/testing/selftests/bpf/sample_map_ret0.c b/tools/testing/selftests/bpf/sample_map_ret0.c new file mode 100644 index 000000000..075630367 --- /dev/null +++ b/tools/testing/selftests/bpf/sample_map_ret0.c @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) */ +#include +#include "bpf_helpers.h" + +struct bpf_map_def SEC("maps") htab = { + .type = BPF_MAP_TYPE_HASH, + .key_size = sizeof(__u32), + .value_size = sizeof(long), + .max_entries = 2, +}; + +struct bpf_map_def SEC("maps") array = { + .type = BPF_MAP_TYPE_ARRAY, + .key_size = sizeof(__u32), + .value_size = sizeof(long), + .max_entries = 2, +}; + +/* Sample program which should always load for testing control paths. */ +SEC(".text") int func() +{ + __u64 key64 = 0; + __u32 key = 0; + long *value; + + value = bpf_map_lookup_elem(&htab, &key); + if (!value) + return 1; + value = bpf_map_lookup_elem(&array, &key64); + if (!value) + return 1; + + return 0; +} -- cgit v1.2.3