aboutsummaryrefslogtreecommitdiff
path: root/net/ipv4/route.c
diff options
context:
space:
mode:
authorDavid S. Miller <davem@davemloft.net>2012-07-19 12:31:33 -0700
committerDavid S. Miller <davem@davemloft.net>2012-07-20 13:31:21 -0700
commitf5b0a8743601a4477419171f5046bd07d1c080a0 (patch)
tree92e17ec293c3d0e35a0deda5d3bbf43710fb96ff /net/ipv4/route.c
parentf8126f1d5136be1ca1a3536d43ad7a710b5620f8 (diff)
net: Document dst->obsolete better.
Add a big comment explaining how the field works, and use defines instead of magic constants for the values assigned to it. Suggested by Joe Perches. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/route.c')
-rw-r--r--net/ipv4/route.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index d1d57963809..50d2498c928 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1221,7 +1221,7 @@ static void rt_set_nexthop(struct rtable *rt, const struct flowi4 *fl4,
static struct rtable *rt_dst_alloc(struct net_device *dev,
bool nopolicy, bool noxfrm)
{
- return dst_alloc(&ipv4_dst_ops, dev, 1, -1,
+ return dst_alloc(&ipv4_dst_ops, dev, 1, DST_OBSOLETE_FORCE_CHK,
DST_HOST | DST_NOCACHE |
(nopolicy ? DST_NOPOLICY : 0) |
(noxfrm ? DST_NOXFRM : 0));
@@ -1969,9 +1969,10 @@ static struct dst_ops ipv4_dst_blackhole_ops = {
struct dst_entry *ipv4_blackhole_route(struct net *net, struct dst_entry *dst_orig)
{
- struct rtable *rt = dst_alloc(&ipv4_dst_blackhole_ops, NULL, 1, 0, 0);
struct rtable *ort = (struct rtable *) dst_orig;
+ struct rtable *rt;
+ rt = dst_alloc(&ipv4_dst_blackhole_ops, NULL, 1, DST_OBSOLETE_NONE, 0);
if (rt) {
struct dst_entry *new = &rt->dst;