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lwt: Remove unused len field 

The field is initialized by ILA and MPLS but never used. Remove it.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Thomas Graf 2016-10-21 16:10:22 +02:00 committed by David S. Miller
parent 7281a66590
commit f76a9db351
3 changed files with 3 additions and 9 deletions
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3
include/net/lwtunnel.h
View File

@ -24,11 +24,10 @@ enum {
struct lwtunnel_state {
__u16 type;
__u16 flags;
__u16 headroom;
atomic_t refcnt;
int (*orig_output)(struct net *net, struct sock *sk, struct sk_buff *skb);
int (*orig_input)(struct sk_buff *);
int len;
__u16 headroom;
struct rcu_head rcu;
__u8 data[0];
};

4
net/ipv6/ila/ila_lwt.c
View File

@ -122,7 +122,6 @@ static int ila_build_state(struct net_device *dev, struct nlattr *nla,
struct ila_lwt *ilwt;
struct ila_params *p;
struct nlattr *tb[ILA_ATTR_MAX + 1];
size_t encap_len = sizeof(*ilwt);
struct lwtunnel_state *newts;
const struct fib6_config *cfg6 = cfg;
struct ila_addr *iaddr;
@ -155,7 +154,7 @@ static int ila_build_state(struct net_device *dev, struct nlattr *nla,
if (!tb[ILA_ATTR_LOCATOR])
return -EINVAL;
newts = lwtunnel_state_alloc(encap_len);
newts = lwtunnel_state_alloc(sizeof(*ilwt));
if (!newts)
return -ENOMEM;
@ -166,7 +165,6 @@ static int ila_build_state(struct net_device *dev, struct nlattr *nla,
return ret;
}
newts->len = encap_len;
p = ila_params_lwtunnel(newts);
p->locator.v64 = (__force __be64)nla_get_u64(tb[ILA_ATTR_LOCATOR]);

5
net/mpls/mpls_iptunnel.c
View File

@ -133,7 +133,6 @@ static int mpls_build_state(struct net_device *dev, struct nlattr *nla,
struct mpls_iptunnel_encap *tun_encap_info;
struct nlattr *tb[MPLS_IPTUNNEL_MAX + 1];
struct lwtunnel_state *newts;
int tun_encap_info_len;
int ret;
ret = nla_parse_nested(tb, MPLS_IPTUNNEL_MAX, nla,
@ -144,13 +143,11 @@ static int mpls_build_state(struct net_device *dev, struct nlattr *nla,
if (!tb[MPLS_IPTUNNEL_DST])
return -EINVAL;
tun_encap_info_len = sizeof(*tun_encap_info);
newts = lwtunnel_state_alloc(tun_encap_info_len);
newts = lwtunnel_state_alloc(sizeof(*tun_encap_info));
if (!newts)
return -ENOMEM;
newts->len = tun_encap_info_len;
tun_encap_info = mpls_lwtunnel_encap(newts);
ret = nla_get_labels(tb[MPLS_IPTUNNEL_DST], MAX_NEW_LABELS,
&tun_encap_info->labels, tun_encap_info->label);