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authorBalbir Singh <balbir@in.ibm.com>2006-07-14 03:24:39 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-15 00:53:56 -0400
commitfb0ba6bd021248b6bdc58a7b1213a55a6776a38a (patch)
tree227944aafeecbef42df1687775bfe668d261ac6b /include
parent52f17b6c2bd443e7806a161e9d10a983650db01d (diff)
[PATCH] per-task-delay-accounting: utilities for genetlink usage
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>
Diffstat (limited to 'include')
-rw-r--r--include/net/genetlink.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 805de50df00d..8c2287264266 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -150,4 +150,24 @@ static inline int genlmsg_unicast(struct sk_buff *skb, u32 pid)
150 return nlmsg_unicast(genl_sock, skb, pid); 150 return nlmsg_unicast(genl_sock, skb, pid);
151} 151}
152 152
153/**
154 * gennlmsg_data - head of message payload
155 * @gnlh: genetlink messsage header
156 */
157static inline void *genlmsg_data(const struct genlmsghdr *gnlh)
158{
159 return ((unsigned char *) gnlh + GENL_HDRLEN);
160}
161
162/**
163 * genlmsg_len - length of message payload
164 * @gnlh: genetlink message header
165 */
166static inline int genlmsg_len(const struct genlmsghdr *gnlh)
167{
168 struct nlmsghdr *nlh = (struct nlmsghdr *)((unsigned char *)gnlh -
169 NLMSG_HDRLEN);
170 return (nlh->nlmsg_len - GENL_HDRLEN - NLMSG_HDRLEN);
171}
172
153#endif /* __NET_GENERIC_NETLINK_H */ 173#endif /* __NET_GENERIC_NETLINK_H */