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-rw-r--r--tools/testing/selftests/bpf/progs/test_libbpf_get_fd_by_id_opts.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_libbpf_get_fd_by_id_opts.c b/tools/testing/selftests/bpf/progs/test_libbpf_get_fd_by_id_opts.c
index f5ac5f3e8919..568816307f71 100644
--- a/tools/testing/selftests/bpf/progs/test_libbpf_get_fd_by_id_opts.c
+++ b/tools/testing/selftests/bpf/progs/test_libbpf_get_fd_by_id_opts.c
@@ -31,6 +31,7 @@ int BPF_PROG(check_access, struct bpf_map *map, fmode_t fmode)
if (fmode & FMODE_WRITE)
return -EACCES;
+ barrier();
return 0;
}