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net: l3mdev: remove redundant calls

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A previous patch added l3mdev flow update making these hooks
redundant. Remove them.

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern 2016-09-10 12:09:57 -07:00 committed by David S. Miller
parent 4c1feac58e
commit e0d56fdd73
8 changed files with 10 additions and 37 deletions
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3
net/ipv4/ip_output.c
View File

@ -1582,8 +1582,7 @@ void ip_send_unicast_reply(struct sock *sk, struct sk_buff *skb,
}
oif = arg->bound_dev_if;
if (!oif && netif_index_is_l3_master(net, skb->skb_iif))
oif = skb->skb_iif;
oif = oif ? : skb->skb_iif;
flowi4_init_output(&fl4, oif,
IP4_REPLY_MARK(net, skb->mark),

12
net/ipv4/route.c
View File

@ -1831,7 +1831,7 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr,
* Now we are ready to route packet.
*/
fl4.flowi4_oif = 0;
fl4.flowi4_iif = l3mdev_fib_oif_rcu(dev);
fl4.flowi4_iif = dev->ifindex;
fl4.flowi4_mark = skb->mark;
fl4.flowi4_tos = tos;
fl4.flowi4_scope = RT_SCOPE_UNIVERSE;
@ -2150,7 +2150,6 @@ struct rtable *__ip_route_output_key_hash(struct net *net, struct flowi4 *fl4,
unsigned int flags = 0;
struct fib_result res;
struct rtable *rth;
int master_idx;
int orig_oif;
int err = -ENETUNREACH;
@ -2160,9 +2159,6 @@ struct rtable *__ip_route_output_key_hash(struct net *net, struct flowi4 *fl4,
orig_oif = fl4->flowi4_oif;
master_idx = l3mdev_master_ifindex_by_index(net, fl4->flowi4_oif);
if (master_idx)
fl4->flowi4_oif = master_idx;
fl4->flowi4_iif = LOOPBACK_IFINDEX;
fl4->flowi4_tos = tos & IPTOS_RT_MASK;
fl4->flowi4_scope = ((tos & RTO_ONLINK) ?
@ -2263,8 +2259,7 @@ struct rtable *__ip_route_output_key_hash(struct net *net, struct flowi4 *fl4,
if (err) {
res.fi = NULL;
res.table = NULL;
if (fl4->flowi4_oif &&
!netif_index_is_l3_master(net, fl4->flowi4_oif)) {
if (fl4->flowi4_oif) {
/* Apparently, routing tables are wrong. Assume,
that the destination is on link.
@ -2577,9 +2572,6 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh)
fl4.flowi4_oif = tb[RTA_OIF] ? nla_get_u32(tb[RTA_OIF]) : 0;
fl4.flowi4_mark = mark;
if (netif_index_is_l3_master(net, fl4.flowi4_oif))
fl4.flowi4_flags = FLOWI_FLAG_L3MDEV_SRC | FLOWI_FLAG_SKIP_NH_OIF;
if (iif) {
struct net_device *dev;

2
net/ipv4/xfrm4_policy.c
View File

@ -112,7 +112,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
int oif = 0;
if (skb_dst(skb))
oif = l3mdev_fib_oif(skb_dst(skb)->dev);
oif = skb_dst(skb)->dev->ifindex;
memset(fl4, 0, sizeof(struct flowi4));
fl4->flowi4_mark = skb->mark;

2
net/ipv6/ip6_output.c
View File

@ -1070,8 +1070,6 @@ struct dst_entry *ip6_dst_lookup_flow(const struct sock *sk, struct flowi6 *fl6,
return ERR_PTR(err);
if (final_dst)
fl6->daddr = *final_dst;
if (!fl6->flowi6_oif)
fl6->flowi6_oif = l3mdev_fib_oif(dst->dev);
return xfrm_lookup_route(sock_net(sk), dst, flowi6_to_flowi(fl6), sk, 0);
}

11
net/ipv6/ndisc.c
View File

@ -67,7 +67,6 @@
#include <net/flow.h>
#include <net/ip6_checksum.h>
#include <net/inet_common.h>
#include <net/l3mdev.h>
#include <linux/proc_fs.h>
#include <linux/netfilter.h>
@ -457,11 +456,9 @@ static void ndisc_send_skb(struct sk_buff *skb,
if (!dst) {
struct flowi6 fl6;
int oif = l3mdev_fib_oif(skb->dev);
int oif = skb->dev->ifindex;
icmpv6_flow_init(sk, &fl6, type, saddr, daddr, oif);
if (oif != skb->dev->ifindex)
fl6.flowi6_flags |= FLOWI_FLAG_L3MDEV_SRC;
dst = icmp6_dst_alloc(skb->dev, &fl6);
if (IS_ERR(dst)) {
kfree_skb(skb);
@ -1538,7 +1535,6 @@ void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target)
int rd_len;
u8 ha_buf[MAX_ADDR_LEN], *ha = NULL,
ops_data_buf[NDISC_OPS_REDIRECT_DATA_SPACE], *ops_data = NULL;
int oif = l3mdev_fib_oif(dev);
bool ret;
if (ipv6_get_lladdr(dev, &saddr_buf, IFA_F_TENTATIVE)) {
@ -1555,10 +1551,7 @@ void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target)
}
icmpv6_flow_init(sk, &fl6, NDISC_REDIRECT,
&saddr_buf, &ipv6_hdr(skb)->saddr, oif);
if (oif != skb->dev->ifindex)
fl6.flowi6_flags |= FLOWI_FLAG_L3MDEV_SRC;
&saddr_buf, &ipv6_hdr(skb)->saddr, dev->ifindex);
dst = ip6_route_output(net, NULL, &fl6);
if (dst->error) {

7
net/ipv6/route.c
View File

@ -1164,7 +1164,7 @@ void ip6_route_input(struct sk_buff *skb)
int flags = RT6_LOOKUP_F_HAS_SADDR;
struct ip_tunnel_info *tun_info;
struct flowi6 fl6 = {
.flowi6_iif = l3mdev_fib_oif(skb->dev),
.flowi6_iif = skb->dev->ifindex,
.daddr = iph->daddr,
.saddr = iph->saddr,
.flowlabel = ip6_flowinfo(iph),
@ -3349,11 +3349,6 @@ static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh)
} else {
fl6.flowi6_oif = oif;
if (netif_index_is_l3_master(net, oif)) {
fl6.flowi6_flags = FLOWI_FLAG_L3MDEV_SRC |
FLOWI_FLAG_SKIP_NH_OIF;
}
rt = (struct rt6_info *)ip6_route_output(net, NULL, &fl6);
}

8
net/ipv6/tcp_ipv6.c
View File

@ -818,12 +818,8 @@ static void tcp_v6_send_response(const struct sock *sk, struct sk_buff *skb, u32
fl6.flowi6_proto = IPPROTO_TCP;
if (rt6_need_strict(&fl6.daddr) && !oif)
fl6.flowi6_oif = tcp_v6_iif(skb);
else {
if (!oif && netif_index_is_l3_master(net, skb->skb_iif))
oif = skb->skb_iif;
fl6.flowi6_oif = oif;
}
else
fl6.flowi6_oif = oif ? : skb->skb_iif;
fl6.flowi6_mark = IP6_REPLY_MARK(net, skb->mark);
fl6.fl6_dport = t1->dest;

2
net/ipv6/xfrm6_policy.c
View File

@ -134,7 +134,7 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
nexthdr = nh[nhoff];
if (skb_dst(skb))
oif = l3mdev_fib_oif(skb_dst(skb)->dev);
oif = skb_dst(skb)->dev->ifindex;
memset(fl6, 0, sizeof(struct flowi6));
fl6->flowi6_mark = skb->mark;