[PATCH] per-task-delay-accounting: utilities for genetlink usage (fb0ba6bd) · Commits · 戴 / test

Two utilities for simplifying usage of NETLINK_GENERIC interface. Signed-off-by:

Balbir Singh <balbir@in.ibm.com> Signed-off-by:

Shailabh Nagar <nagar@watson.ibm.com> Cc: Jes Sorensen <jes@sgi.com> Cc: Peter Chubb <peterc@gelato.unsw.edu.au> Cc: Erich Focht <efocht@ess.nec.de> Cc: Levent Serinol <lserinol@gmail.com> Cc: Jay Lan <jlan@engr.sgi.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by:

Andrew Morton <akpm@osdl.org> Signed-off-by:

Linus Torvalds <torvalds@osdl.org>

include/net/genetlink.h

+20 −0

Original line number	Diff line number	Diff line
		@@ -150,4 +150,24 @@ static inline int genlmsg_unicast(struct sk_buff *skb, u32 pid)
		return nlmsg_unicast(genl_sock, skb, pid);
		}

		/**
		* gennlmsg_data - head of message payload
		* @gnlh: genetlink messsage header
		*/
		static inline void genlmsg_data(const struct genlmsghdr gnlh)
		{
		return ((unsigned char *) gnlh + GENL_HDRLEN);
		}

		/**
		* genlmsg_len - length of message payload
		* @gnlh: genetlink message header
		*/
		static inline int genlmsg_len(const struct genlmsghdr *gnlh)
		{
		struct nlmsghdr nlh = (struct nlmsghdr )((unsigned char *)gnlh -
		NLMSG_HDRLEN);
		return (nlh->nlmsg_len - GENL_HDRLEN - NLMSG_HDRLEN);
		}

		#endif /* __NET_GENERIC_NETLINK_H */

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