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genetlink: register family ops as array

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Instead of using a linked list, use an array. This reduces
the data size needed by the users of genetlink, for example
in wireless (net/wireless/nl80211.c) on 64-bit it frees up
over 1K of data space.

Remove the attempted sending of CTRL_CMD_NEWOPS ctrl event
since genl_ctrl_event(CTRL_CMD_NEWOPS, ...) only returns
-EINVAL anyway, therefore no such event could ever be sent.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Johannes Berg
2013-11-14 17:14:44 +01:00
committed by David S. Miller
parent 3686ec5e84
commit d91824c08f
2 changed files with 36 additions and 47 deletions
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7
include/net/genetlink.h
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@@ -39,9 +39,10 @@ struct genl_info;
* @post_doit: called after an operation's doit callback, it may
* undo operations done by pre_doit, for example release locks
* @attrbuf: buffer to store parsed attributes
* @ops_list: list of all assigned operations
* @family_list: family list
* @mcast_groups: multicast groups list
* @ops: the operations supported by this family (private)
* @n_ops: number of operations supported by this family (private)
*/
struct genl_family {
unsigned int id;
@@ -58,7 +59,8 @@ struct genl_family {
struct sk_buff *skb,
struct genl_info *info);
struct nlattr ** attrbuf; /* private */
struct list_head ops_list; /* private */
struct genl_ops * ops; /* private */
unsigned int n_ops; /* private */
struct list_head family_list; /* private */
struct list_head mcast_groups; /* private */
struct module *module;
@@ -119,7 +121,6 @@ struct genl_ops {
int (*dumpit)(struct sk_buff *skb,
struct netlink_callback *cb);
int (*done)(struct netlink_callback *cb);
struct list_head ops_list;
};
int __genl_register_family(struct genl_family *family);