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| author | David S. Miller <davem@davemloft.net> | 2012-07-19 12:31:33 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-07-20 13:31:21 -0700 |
| commit | f5b0a8743601a4477419171f5046bd07d1c080a0 (patch) | |
| tree | 92e17ec293c3d0e35a0deda5d3bbf43710fb96ff /net/ipv4/route.c | |
| parent | f8126f1d5136be1ca1a3536d43ad7a710b5620f8 (diff) | |
| download | linux-f5b0a8743601a4477419171f5046bd07d1c080a0.tar.gz linux-f5b0a8743601a4477419171f5046bd07d1c080a0.tar.bz2 linux-f5b0a8743601a4477419171f5046bd07d1c080a0.zip | |
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.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c index d1d579638092..50d2498c9284 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; |