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netlink: constify nlmsghdr arguments

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Consitfy nlmsghdr arguments to a couple of functions as preparation
for the next patch, which will constify the netlink message data in
all nfnetlink users.

Signed-off-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Patrick McHardy 2009-08-25 16:07:40 +02:00
parent 74f7a6552c
commit 3a6c2b419b
5 changed files with 13 additions and 12 deletions
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15
include/linux/netlink.h
View File

@ -217,12 +217,13 @@ int netlink_sendskb(struct sock *sk, struct sk_buff *skb);
struct netlink_callback
{
struct sk_buff *skb;
struct nlmsghdr *nlh;
int (*dump)(struct sk_buff * skb, struct netlink_callback *cb);
int (*done)(struct netlink_callback *cb);
int family;
long args[6];
struct sk_buff *skb;
const struct nlmsghdr *nlh;
int (*dump)(struct sk_buff * skb,
struct netlink_callback *cb);
int (*done)(struct netlink_callback *cb);
int family;
long args[6];
};
struct netlink_notify
@ -258,7 +259,7 @@ __nlmsg_put(struct sk_buff *skb, u32 pid, u32 seq, int type, int len, int flags)
NLMSG_NEW(skb, pid, seq, type, len, 0)
extern int netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
struct nlmsghdr *nlh,
const struct nlmsghdr *nlh,
int (*dump)(struct sk_buff *skb, struct netlink_callback*),
int (*done)(struct netlink_callback*));

4
include/net/netlink.h
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@ -365,7 +365,7 @@ static inline struct nlmsghdr *nlmsg_next(struct nlmsghdr *nlh, int *remaining)
*
* See nla_parse()
*/
static inline int nlmsg_parse(struct nlmsghdr *nlh, int hdrlen,
static inline int nlmsg_parse(const struct nlmsghdr *nlh, int hdrlen,
struct nlattr *tb[], int maxtype,
const struct nla_policy *policy)
{
@ -414,7 +414,7 @@ static inline int nlmsg_validate(struct nlmsghdr *nlh, int hdrlen, int maxtype,
*
* Returns 1 if a report back to the application is requested.
*/
static inline int nlmsg_report(struct nlmsghdr *nlh)
static inline int nlmsg_report(const struct nlmsghdr *nlh)
{
return !!(nlh->nlmsg_flags & NLM_F_ECHO);
}

2
include/net/rtnetlink.h
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@ -14,7 +14,7 @@ extern void rtnl_register(int protocol, int msgtype,
extern int rtnl_unregister(int protocol, int msgtype);
extern void rtnl_unregister_all(int protocol);
static inline int rtnl_msg_family(struct nlmsghdr *nlh)
static inline int rtnl_msg_family(const struct nlmsghdr *nlh)
{
if (nlmsg_len(nlh) >= sizeof(struct rtgenmsg))
return ((struct rtgenmsg *) nlmsg_data(nlh))->rtgen_family;

2
net/netlink/af_netlink.c
View File

@ -1705,7 +1705,7 @@ static int netlink_dump(struct sock *sk)
}
int netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
struct nlmsghdr *nlh,
const struct nlmsghdr *nlh,
int (*dump)(struct sk_buff *skb,
struct netlink_callback *),
int (*done)(struct netlink_callback *))

2
net/sched/act_api.c
View File

@ -1011,7 +1011,7 @@ static int tc_ctl_action(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
}
static struct nlattr *
find_dump_kind(struct nlmsghdr *n)
find_dump_kind(const struct nlmsghdr *n)
{
struct nlattr *tb1, *tb2[TCA_ACT_MAX+1];
struct nlattr *tb[TCA_ACT_MAX_PRIO + 1];