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>
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index ab7db83..58a4ba2 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -402,7 +402,7 @@
if (unresolved)
ops->unresolved_rules++;
- notify_rule_change(RTM_NEWRULE, rule, ops, nlh, NETLINK_CB(skb).pid);
+ notify_rule_change(RTM_NEWRULE, rule, ops, nlh, NETLINK_CB(skb).portid);
flush_route_cache(ops);
rules_ops_put(ops);
return 0;
@@ -500,7 +500,7 @@
}
notify_rule_change(RTM_DELRULE, rule, ops, nlh,
- NETLINK_CB(skb).pid);
+ NETLINK_CB(skb).portid);
if (ops->delete)
ops->delete(rule);
fib_rule_put(rule);
@@ -601,7 +601,7 @@
if (idx < cb->args[1])
goto skip;
- if (fib_nl_fill_rule(skb, rule, NETLINK_CB(cb->skb).pid,
+ if (fib_nl_fill_rule(skb, rule, NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq, RTM_NEWRULE,
NLM_F_MULTI, ops) < 0)
break;
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 117afaf..c160adb 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -2102,7 +2102,7 @@
if (tidx < tbl_skip || (family && tbl->family != family))
continue;
- if (neightbl_fill_info(skb, tbl, NETLINK_CB(cb->skb).pid,
+ if (neightbl_fill_info(skb, tbl, NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq, RTM_NEWNEIGHTBL,
NLM_F_MULTI) <= 0)
break;
@@ -2115,7 +2115,7 @@
goto next;
if (neightbl_fill_param_info(skb, tbl, p,
- NETLINK_CB(cb->skb).pid,
+ NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq,
RTM_NEWNEIGHTBL,
NLM_F_MULTI) <= 0)
@@ -2244,7 +2244,7 @@
continue;
if (idx < s_idx)
goto next;
- if (neigh_fill_info(skb, n, NETLINK_CB(cb->skb).pid,
+ if (neigh_fill_info(skb, n, NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq,
RTM_NEWNEIGH,
NLM_F_MULTI) <= 0) {
@@ -2281,7 +2281,7 @@
continue;
if (idx < s_idx)
goto next;
- if (pneigh_fill_info(skb, n, NETLINK_CB(cb->skb).pid,
+ if (pneigh_fill_info(skb, n, NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq,
RTM_NEWNEIGH,
NLM_F_MULTI, tbl) <= 0) {
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 508c5df..9257537 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1081,7 +1081,7 @@
if (idx < s_idx)
goto cont;
if (rtnl_fill_ifinfo(skb, dev, RTM_NEWLINK,
- NETLINK_CB(cb->skb).pid,
+ NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq, 0,
NLM_F_MULTI,
ext_filter_mask) <= 0)
@@ -1899,14 +1899,14 @@
if (nskb == NULL)
return -ENOBUFS;
- err = rtnl_fill_ifinfo(nskb, dev, RTM_NEWLINK, NETLINK_CB(skb).pid,
+ err = rtnl_fill_ifinfo(nskb, dev, RTM_NEWLINK, NETLINK_CB(skb).portid,
nlh->nlmsg_seq, 0, 0, ext_filter_mask);
if (err < 0) {
/* -EMSGSIZE implies BUG in if_nlmsg_size */
WARN_ON(err == -EMSGSIZE);
kfree_skb(nskb);
} else
- err = rtnl_unicast(nskb, net, NETLINK_CB(skb).pid);
+ err = rtnl_unicast(nskb, net, NETLINK_CB(skb).portid);
return err;
}
@@ -2180,9 +2180,9 @@
{
struct netdev_hw_addr *ha;
int err;
- u32 pid, seq;
+ u32 portid, seq;
- pid = NETLINK_CB(cb->skb).pid;
+ portid = NETLINK_CB(cb->skb).portid;
seq = cb->nlh->nlmsg_seq;
list_for_each_entry(ha, &list->list, list) {
@@ -2190,7 +2190,7 @@
goto skip;
err = nlmsg_populate_fdb_fill(skb, dev, ha->addr,
- pid, seq, 0, NTF_SELF);
+ portid, seq, 0, NTF_SELF);
if (err < 0)
return err;
skip:
