docs: cgroup-v2: fix misc.events key format descriptiongrafted

In misc cgroup, misc.events does not output a simple "max" key. Instead,
each registered misc resource outputs a separate key suffixed with ".max"
(i.e., "<res>.max").
Update the documentation to clarify that the entry key is "<res>.max".

Suggested-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Cheng Lingfei <chenglingfei@foxmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/include/net/ah.h b/include/net/ah.h
new file mode 100644
index 000000000..2d2dea521
--- /dev/null
+++ b/include/net/ah.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _NET_AH_H
+#define _NET_AH_H
+
+#include <linux/skbuff.h>
+
+struct crypto_ahash;
+
+struct ah_data {
+	int			icv_full_len;
+	int			icv_trunc_len;
+
+	struct crypto_ahash	*ahash;
+};
+
+struct ip_auth_hdr;
+
+static inline struct ip_auth_hdr *ip_auth_hdr(const struct sk_buff *skb)
+{
+	return (struct ip_auth_hdr *)skb_transport_header(skb);
+}
+
+#endif