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authorThomas Graf <tgraf@suug.ch>2012-06-28 03:57:45 +0000
committerDavid S. Miller <davem@davemloft.net>2012-06-28 17:56:43 -0700
commit58050fce3530939372e6c2f4b4beb76fcb4caa65 (patch)
treeee2b85eda9973fed36102dad66f583e43a4a6cab /include/net/genetlink.h
parent9f10d3f6f966ef6f6a8d025a4b1d341923d04607 (diff)
net: Use NLMSG_DEFAULT_SIZE in combination with nlmsg_new()
Using NLMSG_GOODSIZE results in multiple pages being used as nlmsg_new() will automatically add the size of the netlink header to the payload thus exceeding the page limit. NLMSG_DEFAULT_SIZE takes this into account. Signed-off-by: Thomas Graf <tgraf@suug.ch> Cc: Jiri Pirko <jpirko@redhat.com> Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Cc: Sergey Lapin <slapin@ossfans.org> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Lauro Ramos Venancio <lauro.venancio@openbossa.org> Cc: Aloisio Almeida Jr <aloisio.almeida@openbossa.org> Cc: Samuel Ortiz <sameo@linux.intel.com> Reviewed-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/genetlink.h')
-rw-r--r--include/net/genetlink.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index ccb68880abf5..48905cd3884c 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -5,6 +5,8 @@
#include <net/netlink.h>
#include <net/net_namespace.h>
+#define GENLMSG_DEFAULT_SIZE (NLMSG_DEFAULT_SIZE - GENL_HDRLEN)
+
/**
* struct genl_multicast_group - generic netlink multicast group
* @name: name of the multicast group, names are per-family