genetlink: make genl_ops flags a u8 and move to end
To save some space in the struct on 32-bit systems,
make the flags a u8 (only 4 bits are used) and also
move them to the end of the struct.
This has no impact on 64-bit systems as alignment of
the struct in an array uses up the space anyway.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index d87486a..0b6a144 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -112,15 +112,15 @@
* @ops_list: operations list
*/
struct genl_ops {
- u8 cmd;
- u8 internal_flags;
- unsigned int flags;
const struct nla_policy *policy;
int (*doit)(struct sk_buff *skb,
struct genl_info *info);
int (*dumpit)(struct sk_buff *skb,
struct netlink_callback *cb);
int (*done)(struct netlink_callback *cb);
+ u8 cmd;
+ u8 internal_flags;
+ u8 flags;
};
int __genl_register_family(struct genl_family *family);