netlink: Rename pid to portid to avoid confusion

It is a frequent mistake to confuse the netlink port identifier with a
process identifier.  Try to reduce this confusion by renaming fields
that hold port identifiers portid instead of pid.

I have carefully avoided changing the structures exported to
userspace to avoid changing the userspace API.

I have successfully built an allyesconfig kernel with this change.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 7 deletions

diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index cd17dda5a987..73ade5fbc856 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -165,7 +165,7 @@ static inline struct nlmsghdr *nlmsg_hdr(const struct sk_buff *skb)
 
 struct netlink_skb_parms {
         struct scm_creds        creds;          /* Skb credentials      */
-        __u32                   pid;
+        __u32                   portid;
         __u32                   dst_group;
         struct sock             *ssk;
 };
@@ -205,14 +205,14 @@ extern void __netlink_clear_multicast_users(struct sock *sk, unsigned int group)
 extern void netlink_clear_multicast_users(struct sock *sk, unsigned int group);
 extern void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err);
 extern int netlink_has_listeners(struct sock *sk, unsigned int group);
-extern int netlink_unicast(struct sock *ssk, struct sk_buff *skb, __u32 pid, int nonblock);
-extern int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, __u32 pid,
+extern int netlink_unicast(struct sock *ssk, struct sk_buff *skb, __u32 portid, int nonblock);
+extern int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, __u32 portid,
                              __u32 group, gfp_t allocation);
 extern int netlink_broadcast_filtered(struct sock *ssk, struct sk_buff *skb,
-        __u32 pid, __u32 group, gfp_t allocation,
+        __u32 portid, __u32 group, gfp_t allocation,
         int (*filter)(struct sock *dsk, struct sk_buff *skb, void *data),
         void *filter_data);
-extern int netlink_set_err(struct sock *ssk, __u32 pid, __u32 group, int code);
+extern int netlink_set_err(struct sock *ssk, __u32 portid, __u32 group, int code);
 extern int netlink_register_notifier(struct notifier_block *nb);
 extern int netlink_unregister_notifier(struct notifier_block *nb);
 
@@ -253,12 +253,12 @@ struct netlink_callback {
 
 struct netlink_notify {
         struct net *net;
-        int pid;
+        int portid;
         int protocol;
 };
 
 struct nlmsghdr *
-__nlmsg_put(struct sk_buff *skb, u32 pid, u32 seq, int type, int len, int flags);
+__nlmsg_put(struct sk_buff *skb, u32 portid, u32 seq, int type, int len, int flags);
 
 struct netlink_dump_control {
         int (*dump)(struct sk_buff *skb, struct netlink_callback *);