treewide: Use addattr_nest()/addattr_nest_end() to handle nested attributes

We have helper routines to support nested attribute addition into
netlink buffer: use them instead of open coding.

Use addattr_nest_compat()/addattr_nest_compat_end() where appropriate.

Signed-off-by: Serhey Popovych <serhe.popovych@gmail.com>
Signed-off-by: David Ahern <dsahern@gmail.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/tc/m_nat.c b/tc/m_nat.c
index f5de4d4c..1bb6495b 100644
--- a/tc/m_nat.c
+++ b/tc/m_nat.c
@@ -129,10 +129,9 @@ parse_nat(struct action_util *a, int *argc_p, char ***argv_p, int tca_id, struct
 		}
 	}
 
-	tail = NLMSG_TAIL(n);
-	addattr_l(n, MAX_MSG, tca_id, NULL, 0);
+	tail = addattr_nest(n, MAX_MSG, tca_id);
 	addattr_l(n, MAX_MSG, TCA_NAT_PARMS, &sel, sizeof(sel));
-	tail->rta_len = (char *)NLMSG_TAIL(n) - (char *)tail;
+	addattr_nest_end(n, tail);
 
 	*argc_p = argc;
 	*argv_p = argv;