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net: Deinline __nlmsg_put and genlmsg_put. -7k code on i386 defconfig. 

text	   data	    bss	    dec	    hex	filename
8455963	 532732	1810804	10799499 a4c98b	vmlinux.o.before
8448899	 532732	1810804	10792435 a4adf3	vmlinux.o

This change also removes commented-out copy of __nlmsg_put
which was last touched in 2005 with "Enable once all users
have been converted" comment on top.

Changes in v2: rediffed against net-next.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Denys Vlasenko 2012-01-30 15:22:06 -05:00 committed by David S. Miller
parent 5de658f878
commit a46621a3a8
5 changed files with 53 additions and 80 deletions
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18
include/linux/netlink.h
View File

@ -237,22 +237,8 @@ struct netlink_notify {
int protocol;
};
static __inline__ struct nlmsghdr *
__nlmsg_put(struct sk_buff *skb, u32 pid, u32 seq, int type, int len, int flags)
{
struct nlmsghdr *nlh;
int size = NLMSG_LENGTH(len);
nlh = (struct nlmsghdr*)skb_put(skb, NLMSG_ALIGN(size));
nlh->nlmsg_type = type;
nlh->nlmsg_len = size;
nlh->nlmsg_flags = flags;
nlh->nlmsg_pid = pid;
nlh->nlmsg_seq = seq;
if (!__builtin_constant_p(size) || NLMSG_ALIGN(size) - size != 0)
memset(NLMSG_DATA(nlh) + len, 0, NLMSG_ALIGN(size) - size);
return nlh;
}
struct nlmsghdr *
__nlmsg_put(struct sk_buff *skb, u32 pid, u32 seq, int type, int len, int flags);
#define NLMSG_NEW(skb, pid, seq, type, len, flags) \
({ if (unlikely(skb_tailroom(skb) < (int)NLMSG_SPACE(len))) \

31
include/net/genetlink.h
View File

@ -131,35 +131,8 @@ extern void genl_unregister_mc_group(struct genl_family *family,
extern void genl_notify(struct sk_buff *skb, struct net *net, u32 pid,
u32 group, struct nlmsghdr *nlh, gfp_t flags);
/**
* genlmsg_put - Add generic netlink header to netlink message
* @skb: socket buffer holding the message
* @pid: netlink pid the message is addressed to
* @seq: sequence number (usually the one of the sender)
* @family: generic netlink family
* @flags netlink message flags
* @cmd: generic netlink command
*
* Returns pointer to user specific header
*/
static inline void *genlmsg_put(struct sk_buff *skb, u32 pid, u32 seq,
struct genl_family *family, int flags, u8 cmd)
{
struct nlmsghdr *nlh;
struct genlmsghdr *hdr;
nlh = nlmsg_put(skb, pid, seq, family->id, GENL_HDRLEN +
family->hdrsize, flags);
if (nlh == NULL)
return NULL;
hdr = nlmsg_data(nlh);
hdr->cmd = cmd;
hdr->version = family->version;
hdr->reserved = 0;
return (char *) hdr + GENL_HDRLEN;
}
void *genlmsg_put(struct sk_buff *skb, u32 pid, u32 seq,
struct genl_family *family, int flags, u8 cmd);
/**
* genlmsg_nlhdr - Obtain netlink header from user specified header

35
include/net/netlink.h
View File

@ -441,41 +441,6 @@ static inline int nlmsg_report(const struct nlmsghdr *nlh)
nla_for_each_attr(pos, nlmsg_attrdata(nlh, hdrlen), \
nlmsg_attrlen(nlh, hdrlen), rem)
#if 0
/* FIXME: Enable once all users have been converted */
/**
* __nlmsg_put - Add a new netlink message to an skb
* @skb: socket buffer to store message in
* @pid: netlink process id
* @seq: sequence number of message
* @type: message type
* @payload: length of message payload
* @flags: message flags
*
* The caller is responsible to ensure that the skb provides enough
* tailroom for both the netlink header and payload.
*/
static inline struct nlmsghdr *__nlmsg_put(struct sk_buff *skb, u32 pid,
u32 seq, int type, int payload,
int flags)
{
struct nlmsghdr *nlh;
nlh = (struct nlmsghdr *) skb_put(skb, nlmsg_total_size(payload));
nlh->nlmsg_type = type;
nlh->nlmsg_len = nlmsg_msg_size(payload);
nlh->nlmsg_flags = flags;
nlh->nlmsg_pid = pid;
nlh->nlmsg_seq = seq;
memset((unsigned char *) nlmsg_data(nlh) + payload, 0,
nlmsg_padlen(payload));
return nlh;
}
#endif
/**
* nlmsg_put - Add a new netlink message to an skb
* @skb: socket buffer to store message in

18
net/netlink/af_netlink.c
View File

@ -1645,6 +1645,24 @@ static void netlink_destroy_callback(struct netlink_callback *cb)
kfree(cb);
}
struct nlmsghdr *
__nlmsg_put(struct sk_buff *skb, u32 pid, u32 seq, int type, int len, int flags)
{
struct nlmsghdr *nlh;
int size = NLMSG_LENGTH(len);
nlh = (struct nlmsghdr*)skb_put(skb, NLMSG_ALIGN(size));
nlh->nlmsg_type = type;
nlh->nlmsg_len = size;
nlh->nlmsg_flags = flags;
nlh->nlmsg_pid = pid;
nlh->nlmsg_seq = seq;
if (!__builtin_constant_p(size) || NLMSG_ALIGN(size) - size != 0)
memset(NLMSG_DATA(nlh) + len, 0, NLMSG_ALIGN(size) - size);
return nlh;
}
EXPORT_SYMBOL(__nlmsg_put);
/*
* It looks a bit ugly.
* It would be better to create kernel thread.

31
net/netlink/genetlink.c
View File

@ -498,6 +498,37 @@ int genl_unregister_family(struct genl_family *family)
}
EXPORT_SYMBOL(genl_unregister_family);
/**
* genlmsg_put - Add generic netlink header to netlink message
* @skb: socket buffer holding the message
* @pid: netlink pid the message is addressed to
* @seq: sequence number (usually the one of the sender)
* @family: generic netlink family
* @flags netlink message flags
* @cmd: generic netlink command
*
* Returns pointer to user specific header
*/
void *genlmsg_put(struct sk_buff *skb, u32 pid, u32 seq,
struct genl_family *family, int flags, u8 cmd)
{
struct nlmsghdr *nlh;
struct genlmsghdr *hdr;
nlh = nlmsg_put(skb, pid, seq, family->id, GENL_HDRLEN +
family->hdrsize, flags);
if (nlh == NULL)
return NULL;
hdr = nlmsg_data(nlh);
hdr->cmd = cmd;
hdr->version = family->version;
hdr->reserved = 0;
return (char *) hdr + GENL_HDRLEN;
}
EXPORT_SYMBOL(genlmsg_put);
static int genl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
{
struct genl_ops *ops;