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genetlink: make genl_ops flags a u8 and move to end

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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>
This commit is contained in:
Johannes Berg 2013-11-14 17:14:47 +01:00 committed by David S. Miller
parent 4534de8305
commit 3f5ccd06ae
1 changed files with 3 additions and 3 deletions
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6
include/net/genetlink.h
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@ -112,15 +112,15 @@ static inline void genl_info_net_set(struct genl_info *info, struct net *net)
* @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);