diff options
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_global_func10.c')
-rw-r--r-- | tools/testing/selftests/bpf/progs/test_global_func10.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_global_func10.c b/tools/testing/selftests/bpf/progs/test_global_func10.c new file mode 100644 index 000000000000..61c2ae92ce41 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_global_func10.c @@ -0,0 +1,29 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include <stddef.h> +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> + +struct Small { + int x; +}; + +struct Big { + int x; + int y; +}; + +__noinline int foo(const struct Big *big) +{ + if (big == 0) + return 0; + + return bpf_get_prandom_u32() < big->y; +} + +SEC("cgroup_skb/ingress") +int test_cls(struct __sk_buff *skb) +{ + const struct Small small = {.x = skb->len }; + + return foo((struct Big *)&small) ? 1 : 0; +} |