xfrm: policy: remove xfrm_policy_put_afinfo

Alternative is to keep it an make the (unused) afinfo arg const to avoid
the compiler warnings once the afinfo structs get constified.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 7698785876d716aaa71ea159dc8f111b0420653b..80ef0dcf0e2952f2e137c65c603021dad50f509a 100644 (file)
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -116,11 +116,6 @@ static const struct xfrm_policy_afinfo *xfrm_policy_get_afinfo(unsigned short fa
        return afinfo;
 }
 
-static void xfrm_policy_put_afinfo(struct xfrm_policy_afinfo *afinfo)
-{
-       rcu_read_unlock();
-}
-
 static inline struct dst_entry *__xfrm_dst_lookup(struct net *net,
                                                  int tos, int oif,
                                                  const xfrm_address_t *saddr,
@@ -136,7 +131,7 @@ static inline struct dst_entry *__xfrm_dst_lookup(struct net *net,
 
        dst = afinfo->dst_lookup(net, tos, oif, saddr, daddr);
 
-       xfrm_policy_put_afinfo(afinfo);
+       rcu_read_unlock();
 
        return dst;
 }
@@ -1436,7 +1431,7 @@ xfrm_get_saddr(struct net *net, int oif, xfrm_address_t *local,
        if (unlikely(afinfo == NULL))
                return -EINVAL;
        err = afinfo->get_saddr(net, oif, local, remote);
-       xfrm_policy_put_afinfo(afinfo);
+       rcu_read_unlock();
        return err;
 }
 
@@ -1546,7 +1541,7 @@ static int xfrm_get_tos(const struct flowi *fl, int family)
        afinfo = xfrm_policy_get_afinfo(family);
        tos = afinfo ? afinfo->get_tos(fl) : 0;
 
-       xfrm_policy_put_afinfo(afinfo);
+       rcu_read_unlock();
 
        return tos;
 }
@@ -1632,7 +1627,7 @@ static inline struct xfrm_dst *xfrm_alloc_dst(struct net *net, int family)
        } else
                xdst = ERR_PTR(-ENOBUFS);
 
-       xfrm_policy_put_afinfo(afinfo);
+       rcu_read_unlock();
 
        return xdst;
 }
@@ -1649,7 +1644,7 @@ static inline int xfrm_init_path(struct xfrm_dst *path, struct dst_entry *dst,
 
        err = afinfo->init_path(path, dst, nfheader_len);
 
-       xfrm_policy_put_afinfo(afinfo);
+       rcu_read_unlock();
 
        return err;
 }
@@ -1666,7 +1661,7 @@ static inline int xfrm_fill_dst(struct xfrm_dst *xdst, struct net_device *dev,
 
        err = afinfo->fill_dst(xdst, dev, fl);
 
-       xfrm_policy_put_afinfo(afinfo);
+       rcu_read_unlock();
 
        return err;
 }
@@ -2215,7 +2210,7 @@ static struct dst_entry *make_blackhole(struct net *net, u16 family,
        } else {
                ret = afinfo->blackhole_route(net, dst_orig);
        }
-       xfrm_policy_put_afinfo(afinfo);
+       rcu_read_unlock();
 
        return ret;
 }
@@ -2465,7 +2460,7 @@ int __xfrm_decode_session(struct sk_buff *skb, struct flowi *fl,
 
        afinfo->decode_session(skb, fl, reverse);
        err = security_xfrm_decode_session(skb, &fl->flowi_secid);
-       xfrm_policy_put_afinfo(afinfo);
+       rcu_read_unlock();
        return err;
 }
 EXPORT_SYMBOL(__xfrm_decode_session);