Re: [PATCH net-next v4] net: openvswitch: IPv6: Add IPv6 extension header support

On Thu, 16 Sep 2021 13:44:09 -0700 Toms Atteka wrote:

+/**
+ * Parses packet and sets IPv6 extension header flags.
+ *
+ * skb          buffer where extension header data starts in packet
+ * nh           ipv6 header
+ * ext_hdrs     flags are stored here
+ *
+ * OFPIEH12_UNREP is set if more than one of a given IPv6 extension header
+ * is unexpectedly encountered. (Two destination options headers may be
+ * expected and would not cause this bit to be set.)
+ *
+ * OFPIEH12_UNSEQ is set if IPv6 extension headers were not in the order
+ * preferred (but not required) by RFC 2460:
+ *
+ * When more than one extension header is used in the same packet, it is
+ * recommended that those headers appear in the following order:
+ *      IPv6 header
+ *      Hop-by-Hop Options header
+ *      Destination Options header
+ *      Routing header
+ *      Fragment header
+ *      Authentication header
+ *      Encapsulating Security Payload header
+ *      Destination Options header
+ *      upper-layer header
+ */

This is not a valid kdoc format, please read
Documentation/doc-guide/kernel-doc.rst and double check for warnings
with scripts/kernel-doc -none.

+static void get_ipv6_ext_hdrs(struct sk_buff *skb, struct ipv6hdr *nh,
+			      u16 *ext_hdrs)
+{