tcp: simplify inetpeer_addr_base use
In many places, the a6 field is typecasted to struct in6_addr. As the
fields are in union anyway, just add in6_addr type to the union and get rid
of the typecasting.
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
index 80479ab..d5332dd 100644
--- a/include/net/inetpeer.h
+++ b/include/net/inetpeer.h
@@ -19,6 +19,7 @@
union {
__be32 a4;
__be32 a6[4];
+ struct in6_addr in6;
};
};
@@ -151,7 +152,7 @@
{
struct inetpeer_addr daddr;
- *(struct in6_addr *)daddr.addr.a6 = *v6daddr;
+ daddr.addr.in6 = *v6daddr;
daddr.family = AF_INET6;
return inet_getpeer(base, &daddr, create);
}
diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c
index 5bef351..f62c2c6 100644
--- a/net/ipv4/tcp_metrics.c
+++ b/net/ipv4/tcp_metrics.c
@@ -80,17 +80,11 @@
static bool addr_same(const struct inetpeer_addr *a,
const struct inetpeer_addr *b)
{
- const struct in6_addr *a6, *b6;
-
if (a->family != b->family)
return false;
if (a->family == AF_INET)
return a->addr.a4 == b->addr.a4;
-
- a6 = (const struct in6_addr *) &a->addr.a6[0];
- b6 = (const struct in6_addr *) &b->addr.a6[0];
-
- return ipv6_addr_equal(a6, b6);
+ return ipv6_addr_equal(&a->addr.in6, &b->addr.in6);
}
struct tcpm_hash_bucket {
@@ -256,8 +250,8 @@
break;
#if IS_ENABLED(CONFIG_IPV6)
case AF_INET6:
- *(struct in6_addr *)saddr.addr.a6 = inet_rsk(req)->ir_v6_loc_addr;
- *(struct in6_addr *)daddr.addr.a6 = inet_rsk(req)->ir_v6_rmt_addr;
+ saddr.addr.in6 = inet_rsk(req)->ir_v6_loc_addr;
+ daddr.addr.in6 = inet_rsk(req)->ir_v6_rmt_addr;
hash = ipv6_addr_hash(&inet_rsk(req)->ir_v6_rmt_addr);
break;
#endif
@@ -304,9 +298,9 @@
hash = (__force unsigned int) daddr.addr.a4;
} else {
saddr.family = AF_INET6;
- *(struct in6_addr *)saddr.addr.a6 = tw->tw_v6_rcv_saddr;
+ saddr.addr.in6 = tw->tw_v6_rcv_saddr;
daddr.family = AF_INET6;
- *(struct in6_addr *)daddr.addr.a6 = tw->tw_v6_daddr;
+ daddr.addr.in6 = tw->tw_v6_daddr;
hash = ipv6_addr_hash(&tw->tw_v6_daddr);
}
}
@@ -354,9 +348,9 @@
hash = (__force unsigned int) daddr.addr.a4;
} else {
saddr.family = AF_INET6;
- *(struct in6_addr *)saddr.addr.a6 = sk->sk_v6_rcv_saddr;
+ saddr.addr.in6 = sk->sk_v6_rcv_saddr;
daddr.family = AF_INET6;
- *(struct in6_addr *)daddr.addr.a6 = sk->sk_v6_daddr;
+ daddr.addr.in6 = sk->sk_v6_daddr;
hash = ipv6_addr_hash(&sk->sk_v6_daddr);
}
}
@@ -966,7 +960,7 @@
addr->family = AF_INET6;
memcpy(addr->addr.a6, nla_data(a), sizeof(addr->addr.a6));
if (hash)
- *hash = ipv6_addr_hash((struct in6_addr *) addr->addr.a6);
+ *hash = ipv6_addr_hash(&addr->addr.in6);
return 0;
}
return optional ? 1 : -EAFNOSUPPORT;