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xfrm: remove tos indirection from afinfo_policy 

Only used by ipv4, we can read the fl4 tos value directly instead.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Florian Westphal 2019-04-16 16:44:37 +02:00 committed by Steffen Klassert
parent e54d152765
commit f24ea52873
4 changed files with 3 additions and 24 deletions
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1
include/net/xfrm.h
View File

@ -329,7 +329,6 @@ struct xfrm_policy_afinfo {
void (*decode_session)(struct sk_buff *skb,
struct flowi *fl,
int reverse);
int (*get_tos)(const struct flowi *fl);
int (*init_path)(struct xfrm_dst *path,
struct dst_entry *dst,
int nfheader_len);

6
net/ipv4/xfrm4_policy.c
View File

@ -69,11 +69,6 @@ static int xfrm4_get_saddr(struct net *net, int oif,
return 0;
}
static int xfrm4_get_tos(const struct flowi *fl)
{
return IPTOS_RT_MASK & fl->u.ip4.flowi4_tos; /* Strip ECN bits */
}
static int xfrm4_init_path(struct xfrm_dst *path, struct dst_entry *dst,
int nfheader_len)
{
@ -272,7 +267,6 @@ static const struct xfrm_policy_afinfo xfrm4_policy_afinfo = {
.dst_lookup = xfrm4_dst_lookup,
.get_saddr = xfrm4_get_saddr,
.decode_session = _decode_session4,
.get_tos = xfrm4_get_tos,
.init_path = xfrm4_init_path,
.fill_dst = xfrm4_fill_dst,
.blackhole_route = ipv4_blackhole_route,

6
net/ipv6/xfrm6_policy.c
View File

@ -71,11 +71,6 @@ static int xfrm6_get_saddr(struct net *net, int oif,
return 0;
}
static int xfrm6_get_tos(const struct flowi *fl)
{
return 0;
}
static int xfrm6_init_path(struct xfrm_dst *path, struct dst_entry *dst,
int nfheader_len)
{
@ -292,7 +287,6 @@ static const struct xfrm_policy_afinfo xfrm6_policy_afinfo = {
.dst_lookup = xfrm6_dst_lookup,
.get_saddr = xfrm6_get_saddr,
.decode_session = _decode_session6,
.get_tos = xfrm6_get_tos,
.init_path = xfrm6_init_path,
.fill_dst = xfrm6_fill_dst,
.blackhole_route = ip6_blackhole_route,

14
net/xfrm/xfrm_policy.c
View File

@ -2450,18 +2450,10 @@ xfrm_tmpl_resolve(struct xfrm_policy **pols, int npols, const struct flowi *fl,
static int xfrm_get_tos(const struct flowi *fl, int family)
{
const struct xfrm_policy_afinfo *afinfo;
int tos;
if (family == AF_INET)
return IPTOS_RT_MASK & fl->u.ip4.flowi4_tos;
afinfo = xfrm_policy_get_afinfo(family);
if (!afinfo)
return 0;
tos = afinfo->get_tos(fl);
rcu_read_unlock();
return tos;
return 0;
}
static inline struct xfrm_dst *xfrm_alloc_dst(struct net *net, int family)