From 7b1883cefc288b2725966357edd2d8f321605622 Mon Sep 17 00:00:00 2001 From: Joe Stringer Date: Wed, 21 Jan 2015 16:42:51 -0800 Subject: [PATCH] genetlink: Add genlmsg_parse() helper function. The first user will be the next patch. Signed-off-by: Joe Stringer Acked-by: Pravin B Shelar Signed-off-by: David S. Miller --- include/net/genetlink.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/include/net/genetlink.h b/include/net/genetlink.h index f24aa83b80b6..d5a9a8b5af37 100644 --- a/include/net/genetlink.h +++ b/include/net/genetlink.h @@ -205,6 +205,23 @@ static inline struct nlmsghdr *genlmsg_nlhdr(void *user_hdr, NLMSG_HDRLEN); } +/** + * genlmsg_parse - parse attributes of a genetlink message + * @nlh: netlink message header + * @family: genetlink message family + * @tb: destination array with maxtype+1 elements + * @maxtype: maximum attribute type to be expected + * @policy: validation policy + * */ +static inline int genlmsg_parse(const struct nlmsghdr *nlh, + const struct genl_family *family, + struct nlattr *tb[], int maxtype, + const struct nla_policy *policy) +{ + return nlmsg_parse(nlh, family->hdrsize + GENL_HDRLEN, tb, maxtype, + policy); +} + /** * genl_dump_check_consistent - check if sequence is consistent and advertise if not * @cb: netlink callback structure that stores the sequence number