netdev - [Patch bpf-next v3 3/3] selftests/bpf: add timeout map check in map

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Date:   Mon, 21 Dec 2020 17:33:44 -0800
From:   Cong Wang <xiyou.wangcong@...il.com>
To:     netdev@...r.kernel.org
Cc:     Cong Wang <cong.wang@...edance.com>, Andrey Ignatov <rdna@...com>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Dongdong Wang <wangdongdong.6@...edance.com>
Subject: [Patch bpf-next v3 3/3] selftests/bpf: add timeout map check in map_ptr tests

From: Cong Wang <cong.wang@...edance.com>

Similar to regular hashmap test.

Acked-by: Andrey Ignatov <rdna@...com>
Cc: Alexei Starovoitov <ast@...nel.org>
Cc: Daniel Borkmann <daniel@...earbox.net>
Cc: Dongdong Wang <wangdongdong.6@...edance.com>
Signed-off-by: Cong Wang <cong.wang@...edance.com>
---
 .../selftests/bpf/progs/map_ptr_kern.c        | 20 +++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/tools/testing/selftests/bpf/progs/map_ptr_kern.c b/tools/testing/selftests/bpf/progs/map_ptr_kern.c
index d8850bc6a9f1..424a9e76c93f 100644
--- a/tools/testing/selftests/bpf/progs/map_ptr_kern.c
+++ b/tools/testing/selftests/bpf/progs/map_ptr_kern.c
@@ -648,6 +648,25 @@ static inline int check_ringbuf(void)
 	return 1;
 }
 
+struct {
+	__uint(type, BPF_MAP_TYPE_TIMEOUT_HASH);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+} m_timeout SEC(".maps");
+
+static inline int check_timeout_hash(void)
+{
+	struct bpf_htab *timeout_hash = (struct bpf_htab *)&m_timeout;
+	struct bpf_map *map = (struct bpf_map *)&m_timeout;
+
+	VERIFY(check_default(&timeout_hash->map, map));
+	VERIFY(timeout_hash->n_buckets == MAX_ENTRIES);
+	VERIFY(timeout_hash->elem_size == 64);
+
+	return 1;
+}
+
 SEC("cgroup_skb/egress")
 int cg_skb(void *ctx)
 {
@@ -679,6 +698,7 @@ int cg_skb(void *ctx)
 	VERIFY_TYPE(BPF_MAP_TYPE_SK_STORAGE, check_sk_storage);
 	VERIFY_TYPE(BPF_MAP_TYPE_DEVMAP_HASH, check_devmap_hash);
 	VERIFY_TYPE(BPF_MAP_TYPE_RINGBUF, check_ringbuf);
+	VERIFY_TYPE(BPF_MAP_TYPE_TIMEOUT_HASH, check_timeout_hash);
 
 	return 1;
 }
-- 
2.25.1