aboutsummaryrefslogtreecommitdiffstats
path: root/net
diff options
context:
space:
mode:
Diffstat (limited to 'net')
-rw-r--r--net/can/bcm.c3
-rw-r--r--net/core/net-sysfs.c20
-rw-r--r--net/ipv4/icmp.c3
-rw-r--r--net/ipv4/ipmr.c4
-rw-r--r--net/ipv4/route.c9
-rw-r--r--net/ipv4/xfrm4_policy.c13
-rw-r--r--net/ipv6/inet6_connection_sock.c3
-rw-r--r--net/irda/irttp.c1
-rw-r--r--net/mac80211/ibss.c8
-rw-r--r--net/netfilter/ipset/ip_set_hash_ip.c4
-rw-r--r--net/netfilter/ipset/ip_set_hash_ipport.c7
-rw-r--r--net/netfilter/ipset/ip_set_hash_ipportip.c7
-rw-r--r--net/netfilter/ipset/ip_set_hash_ipportnet.c7
-rw-r--r--net/netfilter/ipset/ip_set_hash_netiface.c2
-rw-r--r--net/netfilter/nfnetlink_cttimeout.c3
-rw-r--r--net/nfc/llcp/llcp.c2
-rw-r--r--net/openvswitch/flow.c14
-rw-r--r--net/openvswitch/vport-netdev.c2
-rw-r--r--net/sctp/chunk.c20
-rw-r--r--net/sctp/socket.c4
-rw-r--r--net/sctp/transport.c2
21 files changed, 83 insertions, 55 deletions
diff --git a/net/can/bcm.c b/net/can/bcm.c
index 6f74758..969b7cd 100644
--- a/net/can/bcm.c
+++ b/net/can/bcm.c
@@ -1084,6 +1084,9 @@ static int bcm_rx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg,
op->sk = sk;
op->ifindex = ifindex;
+ /* ifindex for timeout events w/o previous frame reception */
+ op->rx_ifindex = ifindex;
+
/* initialize uninitialized (kzalloc) structure */
hrtimer_init(&op->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
op->timer.function = bcm_rx_timeout_handler;
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index bcf02f6..017a8ba 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -429,6 +429,17 @@ static struct attribute_group netstat_group = {
.name = "statistics",
.attrs = netstat_attrs,
};
+
+#if IS_ENABLED(CONFIG_WIRELESS_EXT) || IS_ENABLED(CONFIG_CFG80211)
+static struct attribute *wireless_attrs[] = {
+ NULL
+};
+
+static struct attribute_group wireless_group = {
+ .name = "wireless",
+ .attrs = wireless_attrs,
+};
+#endif
#endif /* CONFIG_SYSFS */
#ifdef CONFIG_RPS
@@ -1409,6 +1420,15 @@ int netdev_register_kobject(struct net_device *net)
groups++;
*groups++ = &netstat_group;
+
+#if IS_ENABLED(CONFIG_WIRELESS_EXT) || IS_ENABLED(CONFIG_CFG80211)
+ if (net->ieee80211_ptr)
+ *groups++ = &wireless_group;
+#if IS_ENABLED(CONFIG_WIRELESS_EXT)
+ else if (net->wireless_handlers)
+ *groups++ = &wireless_group;
+#endif
+#endif
#endif /* CONFIG_SYSFS */
error = device_add(dev);
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index f2eccd5..17ff9fd 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -257,7 +257,8 @@ static inline bool icmpv4_xrlim_allow(struct net *net, struct rtable *rt,
struct inet_peer *peer = inet_getpeer_v4(net->ipv4.peers, fl4->daddr, 1);
rc = inet_peer_xrlim_allow(peer,
net->ipv4.sysctl_icmp_ratelimit);
- inet_putpeer(peer);
+ if (peer)
+ inet_putpeer(peer);
}
out:
return rc;
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 6168c4d..3eab2b2 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -1318,6 +1318,10 @@ int ip_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, unsi
if (get_user(v, (u32 __user *)optval))
return -EFAULT;
+ /* "pimreg%u" should not exceed 16 bytes (IFNAMSIZ) */
+ if (v != RT_TABLE_DEFAULT && v >= 1000000000)
+ return -EINVAL;
+
rtnl_lock();
ret = 0;
if (sk == rtnl_dereference(mrt->mroute_sk)) {
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index a8c6512..df25142 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1785,6 +1785,7 @@ static struct rtable *__mkroute_output(const struct fib_result *res,
if (dev_out->flags & IFF_LOOPBACK)
flags |= RTCF_LOCAL;
+ do_cache = true;
if (type == RTN_BROADCAST) {
flags |= RTCF_BROADCAST | RTCF_LOCAL;
fi = NULL;
@@ -1793,6 +1794,8 @@ static struct rtable *__mkroute_output(const struct fib_result *res,
if (!ip_check_mc_rcu(in_dev, fl4->daddr, fl4->saddr,
fl4->flowi4_proto))
flags &= ~RTCF_LOCAL;
+ else
+ do_cache = false;
/* If multicast route do not exist use
* default one, but do not gateway in this case.
* Yes, it is hack.
@@ -1802,8 +1805,8 @@ static struct rtable *__mkroute_output(const struct fib_result *res,
}
fnhe = NULL;
- do_cache = fi != NULL;
- if (fi) {
+ do_cache &= fi != NULL;
+ if (do_cache) {
struct rtable __rcu **prth;
struct fib_nh *nh = &FIB_RES_NH(*res);
@@ -2597,7 +2600,7 @@ int __init ip_rt_init(void)
pr_err("Unable to create route proc files\n");
#ifdef CONFIG_XFRM
xfrm_init();
- xfrm4_init(ip_rt_max_size);
+ xfrm4_init();
#endif
rtnl_register(PF_INET, RTM_GETROUTE, inet_rtm_getroute, NULL, NULL);
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 05c5ab8..3be0ac2 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -279,19 +279,8 @@ static void __exit xfrm4_policy_fini(void)
xfrm_policy_unregister_afinfo(&xfrm4_policy_afinfo);
}
-void __init xfrm4_init(int rt_max_size)
+void __init xfrm4_init(void)
{
- /*
- * Select a default value for the gc_thresh based on the main route
- * table hash size. It seems to me the worst case scenario is when
- * we have ipsec operating in transport mode, in which we create a
- * dst_entry per socket. The xfrm gc algorithm starts trying to remove
- * entries at gc_thresh, and prevents new allocations as 2*gc_thresh
- * so lets set an initial xfrm gc_thresh value at the rt_max_size/2.
- * That will let us store an ipsec connection per route table entry,
- * and start cleaning when were 1/2 full
- */
- xfrm4_dst_ops.gc_thresh = rt_max_size/2;
dst_entries_init(&xfrm4_dst_ops);
xfrm4_state_init();
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index c4f9341..3064785 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -252,6 +252,7 @@ struct dst_entry *inet6_csk_update_pmtu(struct sock *sk, u32 mtu)
return NULL;
dst->ops->update_pmtu(dst, sk, NULL, mtu);
- return inet6_csk_route_socket(sk, &fl6);
+ dst = inet6_csk_route_socket(sk, &fl6);
+ return IS_ERR(dst) ? NULL : dst;
}
EXPORT_SYMBOL_GPL(inet6_csk_update_pmtu);
diff --git a/net/irda/irttp.c b/net/irda/irttp.c
index 1002e33..ae43c62 100644
--- a/net/irda/irttp.c
+++ b/net/irda/irttp.c
@@ -441,6 +441,7 @@ struct tsap_cb *irttp_open_tsap(__u8 stsap_sel, int credit, notify_t *notify)
lsap = irlmp_open_lsap(stsap_sel, &ttp_notify, 0);
if (lsap == NULL) {
IRDA_DEBUG(0, "%s: unable to allocate LSAP!!\n", __func__);
+ __irttp_close_tsap(self);
return NULL;
}
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index bf87c70..c21e33d 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -1151,10 +1151,6 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
mutex_lock(&sdata->u.ibss.mtx);
- sdata->u.ibss.state = IEEE80211_IBSS_MLME_SEARCH;
- memset(sdata->u.ibss.bssid, 0, ETH_ALEN);
- sdata->u.ibss.ssid_len = 0;
-
active_ibss = ieee80211_sta_active_ibss(sdata);
if (!active_ibss && !is_zero_ether_addr(ifibss->bssid)) {
@@ -1175,6 +1171,10 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
}
}
+ ifibss->state = IEEE80211_IBSS_MLME_SEARCH;
+ memset(ifibss->bssid, 0, ETH_ALEN);
+ ifibss->ssid_len = 0;
+
sta_info_flush(sdata->local, sdata);
spin_lock_bh(&ifibss->incomplete_lock);
diff --git a/net/netfilter/ipset/ip_set_hash_ip.c b/net/netfilter/ipset/ip_set_hash_ip.c
index ec3dba5..5c0b785 100644
--- a/net/netfilter/ipset/ip_set_hash_ip.c
+++ b/net/netfilter/ipset/ip_set_hash_ip.c
@@ -173,6 +173,7 @@ hash_ip4_uadt(struct ip_set *set, struct nlattr *tb[],
return adtfn(set, &nip, timeout, flags);
}
+ ip_to = ip;
if (tb[IPSET_ATTR_IP_TO]) {
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
if (ret)
@@ -185,8 +186,7 @@ hash_ip4_uadt(struct ip_set *set, struct nlattr *tb[],
if (!cidr || cidr > 32)
return -IPSET_ERR_INVALID_CIDR;
ip_set_mask_from_to(ip, ip_to, cidr);
- } else
- ip_to = ip;
+ }
hosts = h->netmask == 32 ? 1 : 2 << (32 - h->netmask - 1);
diff --git a/net/netfilter/ipset/ip_set_hash_ipport.c b/net/netfilter/ipset/ip_set_hash_ipport.c
index 0171f75..6283351 100644
--- a/net/netfilter/ipset/ip_set_hash_ipport.c
+++ b/net/netfilter/ipset/ip_set_hash_ipport.c
@@ -162,7 +162,7 @@ hash_ipport4_uadt(struct ip_set *set, struct nlattr *tb[],
const struct ip_set_hash *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_ipport4_elem data = { };
- u32 ip, ip_to = 0, p = 0, port, port_to;
+ u32 ip, ip_to, p = 0, port, port_to;
u32 timeout = h->timeout;
bool with_ports = false;
int ret;
@@ -210,7 +210,7 @@ hash_ipport4_uadt(struct ip_set *set, struct nlattr *tb[],
return ip_set_eexist(ret, flags) ? 0 : ret;
}
- ip = ntohl(data.ip);
+ ip_to = ip = ntohl(data.ip);
if (tb[IPSET_ATTR_IP_TO]) {
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
if (ret)
@@ -223,8 +223,7 @@ hash_ipport4_uadt(struct ip_set *set, struct nlattr *tb[],
if (!cidr || cidr > 32)
return -IPSET_ERR_INVALID_CIDR;
ip_set_mask_from_to(ip, ip_to, cidr);
- } else
- ip_to = ip;
+ }
port_to = port = ntohs(data.port);
if (with_ports && tb[IPSET_ATTR_PORT_TO]) {
diff --git a/net/netfilter/ipset/ip_set_hash_ipportip.c b/net/netfilter/ipset/ip_set_hash_ipportip.c
index 6344ef5..6a21271 100644
--- a/net/netfilter/ipset/ip_set_hash_ipportip.c
+++ b/net/netfilter/ipset/ip_set_hash_ipportip.c
@@ -166,7 +166,7 @@ hash_ipportip4_uadt(struct ip_set *set, struct nlattr *tb[],
const struct ip_set_hash *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_ipportip4_elem data = { };
- u32 ip, ip_to = 0, p = 0, port, port_to;
+ u32 ip, ip_to, p = 0, port, port_to;
u32 timeout = h->timeout;
bool with_ports = false;
int ret;
@@ -218,7 +218,7 @@ hash_ipportip4_uadt(struct ip_set *set, struct nlattr *tb[],
return ip_set_eexist(ret, flags) ? 0 : ret;
}
- ip = ntohl(data.ip);
+ ip_to = ip = ntohl(data.ip);
if (tb[IPSET_ATTR_IP_TO]) {
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
if (ret)
@@ -231,8 +231,7 @@ hash_ipportip4_uadt(struct ip_set *set, struct nlattr *tb[],
if (!cidr || cidr > 32)
return -IPSET_ERR_INVALID_CIDR;
ip_set_mask_from_to(ip, ip_to, cidr);
- } else
- ip_to = ip;
+ }
port_to = port = ntohs(data.port);
if (with_ports && tb[IPSET_ATTR_PORT_TO]) {
diff --git a/net/netfilter/ipset/ip_set_hash_ipportnet.c b/net/netfilter/ipset/ip_set_hash_ipportnet.c
index cb71f9a..2d5cd4e 100644
--- a/net/netfilter/ipset/ip_set_hash_ipportnet.c
+++ b/net/netfilter/ipset/ip_set_hash_ipportnet.c
@@ -215,8 +215,8 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
const struct ip_set_hash *h = set->data;
ipset_adtfn adtfn = set->variant->adt[adt];
struct hash_ipportnet4_elem data = { .cidr = HOST_MASK - 1 };
- u32 ip, ip_to = 0, p = 0, port, port_to;
- u32 ip2_from = 0, ip2_to, ip2_last, ip2;
+ u32 ip, ip_to, p = 0, port, port_to;
+ u32 ip2_from, ip2_to, ip2_last, ip2;
u32 timeout = h->timeout;
bool with_ports = false;
u8 cidr;
@@ -286,6 +286,7 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
return ip_set_eexist(ret, flags) ? 0 : ret;
}
+ ip_to = ip;
if (tb[IPSET_ATTR_IP_TO]) {
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
if (ret)
@@ -306,6 +307,8 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
if (port > port_to)
swap(port, port_to);
}
+
+ ip2_to = ip2_from;
if (tb[IPSET_ATTR_IP2_TO]) {
ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to);
if (ret)
diff --git a/net/netfilter/ipset/ip_set_hash_netiface.c b/net/netfilter/ipset/ip_set_hash_netiface.c
index b9a6338..45a1014 100644
--- a/net/netfilter/ipset/ip_set_hash_netiface.c
+++ b/net/netfilter/ipset/ip_set_hash_netiface.c
@@ -793,7 +793,7 @@ static struct ip_set_type hash_netiface_type __read_mostly = {
[IPSET_ATTR_IP] = { .type = NLA_NESTED },
[IPSET_ATTR_IP_TO] = { .type = NLA_NESTED },
[IPSET_ATTR_IFACE] = { .type = NLA_NUL_STRING,
- .len = IPSET_MAXNAMELEN - 1 },
+ .len = IFNAMSIZ - 1 },
[IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
[IPSET_ATTR_CIDR] = { .type = NLA_U8 },
[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
diff --git a/net/netfilter/nfnetlink_cttimeout.c b/net/netfilter/nfnetlink_cttimeout.c
index 8847b4d..701c88a 100644
--- a/net/netfilter/nfnetlink_cttimeout.c
+++ b/net/netfilter/nfnetlink_cttimeout.c
@@ -41,7 +41,8 @@ MODULE_DESCRIPTION("cttimeout: Extended Netfilter Connection Tracking timeout tu
static LIST_HEAD(cttimeout_list);
static const struct nla_policy cttimeout_nla_policy[CTA_TIMEOUT_MAX+1] = {
- [CTA_TIMEOUT_NAME] = { .type = NLA_NUL_STRING },
+ [CTA_TIMEOUT_NAME] = { .type = NLA_NUL_STRING,
+ .len = CTNL_TIMEOUT_NAME_MAX - 1},
[CTA_TIMEOUT_L3PROTO] = { .type = NLA_U16 },
[CTA_TIMEOUT_L4PROTO] = { .type = NLA_U8 },
[CTA_TIMEOUT_DATA] = { .type = NLA_NESTED },
diff --git a/net/nfc/llcp/llcp.c b/net/nfc/llcp/llcp.c
index cc10d07..9e8f4b2 100644
--- a/net/nfc/llcp/llcp.c
+++ b/net/nfc/llcp/llcp.c
@@ -1210,7 +1210,7 @@ int nfc_llcp_register_device(struct nfc_dev *ndev)
local->remote_miu = LLCP_DEFAULT_MIU;
local->remote_lto = LLCP_DEFAULT_LTO;
- list_add(&llcp_devices, &local->list);
+ list_add(&local->list, &llcp_devices);
return 0;
}
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index 98c7063..733cbf4 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -702,15 +702,11 @@ int ovs_flow_extract(struct sk_buff *skb, u16 in_port, struct sw_flow_key *key,
/* We only match on the lower 8 bits of the opcode. */
if (ntohs(arp->ar_op) <= 0xff)
key->ip.proto = ntohs(arp->ar_op);
-
- if (key->ip.proto == ARPOP_REQUEST
- || key->ip.proto == ARPOP_REPLY) {
- memcpy(&key->ipv4.addr.src, arp->ar_sip, sizeof(key->ipv4.addr.src));
- memcpy(&key->ipv4.addr.dst, arp->ar_tip, sizeof(key->ipv4.addr.dst));
- memcpy(key->ipv4.arp.sha, arp->ar_sha, ETH_ALEN);
- memcpy(key->ipv4.arp.tha, arp->ar_tha, ETH_ALEN);
- key_len = SW_FLOW_KEY_OFFSET(ipv4.arp);
- }
+ memcpy(&key->ipv4.addr.src, arp->ar_sip, sizeof(key->ipv4.addr.src));
+ memcpy(&key->ipv4.addr.dst, arp->ar_tip, sizeof(key->ipv4.addr.dst));
+ memcpy(key->ipv4.arp.sha, arp->ar_sha, ETH_ALEN);
+ memcpy(key->ipv4.arp.tha, arp->ar_tha, ETH_ALEN);
+ key_len = SW_FLOW_KEY_OFFSET(ipv4.arp);
}
} else if (key->eth.type == htons(ETH_P_IPV6)) {
int nh_len; /* IPv6 Header + Extensions */
diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c
index 3c1e58b..a903348 100644
--- a/net/openvswitch/vport-netdev.c
+++ b/net/openvswitch/vport-netdev.c
@@ -158,7 +158,7 @@ static int netdev_send(struct vport *vport, struct sk_buff *skb)
if (unlikely(packet_length(skb) > mtu && !skb_is_gso(skb))) {
net_warn_ratelimited("%s: dropped over-mtu packet: %d > %d\n",
- ovs_dp_name(vport->dp),
+ netdev_vport->dev->name,
packet_length(skb), mtu);
goto error;
}
diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c
index 7c2df9c..69ce21e 100644
--- a/net/sctp/chunk.c
+++ b/net/sctp/chunk.c
@@ -183,7 +183,7 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
msg = sctp_datamsg_new(GFP_KERNEL);
if (!msg)
- return NULL;
+ return ERR_PTR(-ENOMEM);
/* Note: Calculate this outside of the loop, so that all fragments
* have the same expiration.
@@ -280,11 +280,14 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
chunk = sctp_make_datafrag_empty(asoc, sinfo, len, frag, 0);
- if (!chunk)
+ if (!chunk) {
+ err = -ENOMEM;
goto errout;
+ }
+
err = sctp_user_addto_chunk(chunk, offset, len, msgh->msg_iov);
if (err < 0)
- goto errout;
+ goto errout_chunk_free;
offset += len;
@@ -315,8 +318,10 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
chunk = sctp_make_datafrag_empty(asoc, sinfo, over, frag, 0);
- if (!chunk)
+ if (!chunk) {
+ err = -ENOMEM;
goto errout;
+ }
err = sctp_user_addto_chunk(chunk, offset, over,msgh->msg_iov);
@@ -324,7 +329,7 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
__skb_pull(chunk->skb, (__u8 *)chunk->chunk_hdr
- (__u8 *)chunk->skb->data);
if (err < 0)
- goto errout;
+ goto errout_chunk_free;
sctp_datamsg_assign(msg, chunk);
list_add_tail(&chunk->frag_list, &msg->chunks);
@@ -332,6 +337,9 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
return msg;
+errout_chunk_free:
+ sctp_chunk_free(chunk);
+
errout:
list_for_each_safe(pos, temp, &msg->chunks) {
list_del_init(pos);
@@ -339,7 +347,7 @@ errout:
sctp_chunk_free(chunk);
}
sctp_datamsg_put(msg);
- return NULL;
+ return ERR_PTR(err);
}
/* Check whether this message has expired. */
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index a60d1f8..406d957 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -1915,8 +1915,8 @@ SCTP_STATIC int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
/* Break the message into multiple chunks of maximum size. */
datamsg = sctp_datamsg_from_user(asoc, sinfo, msg, msg_len);
- if (!datamsg) {
- err = -ENOMEM;
+ if (IS_ERR(datamsg)) {
+ err = PTR_ERR(datamsg);
goto out_free;
}
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index 953c21e..206cf52 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -331,7 +331,7 @@ void sctp_transport_update_rto(struct sctp_transport *tp, __u32 rtt)
* 1/8, rto_alpha would be expressed as 3.
*/
tp->rttvar = tp->rttvar - (tp->rttvar >> net->sctp.rto_beta)
- + ((abs(tp->srtt - rtt)) >> net->sctp.rto_beta);
+ + (((__u32)abs64((__s64)tp->srtt - (__s64)rtt)) >> net->sctp.rto_beta);
tp->srtt = tp->srtt - (tp->srtt >> net->sctp.rto_alpha)
+ (rtt >> net->sctp.rto_alpha);
} else {