9 files changed, 110 insertions, 48 deletions

diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 77a49ffdd0ef..a9e1f1785614 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -163,7 +163,7 @@ int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev,
                 goto err_unlock;
         }
 
-        rx_stats = per_cpu_ptr(vlan_dev_info(dev)->vlan_rx_stats,
+        rx_stats = per_cpu_ptr(vlan_dev_info(skb->dev)->vlan_rx_stats,
                                smp_processor_id());
         rx_stats->rx_packets++;
         rx_stats->rx_bytes += skb->len;
diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c
index bb110c5ce1d2..9bc805df95d2 100644
--- a/net/ipv4/tcp_probe.c
+++ b/net/ipv4/tcp_probe.c
@@ -39,9 +39,9 @@ static int port __read_mostly = 0;
 MODULE_PARM_DESC(port, "Port to match (0=all)");
 module_param(port, int, 0);
 
-static int bufsize __read_mostly = 4096;
+static unsigned int bufsize __read_mostly = 4096;
 MODULE_PARM_DESC(bufsize, "Log buffer size in packets (4096)");
-module_param(bufsize, int, 0);
+module_param(bufsize, uint, 0);
 
 static int full __read_mostly;
 MODULE_PARM_DESC(full, "Full log (1=every ack packet received,  0=only cwnd changes)");
@@ -75,12 +75,12 @@ static struct {
 
 static inline int tcp_probe_used(void)
 {
-        return (tcp_probe.head - tcp_probe.tail) % bufsize;
+        return (tcp_probe.head - tcp_probe.tail) & (bufsize - 1);
 }
 
 static inline int tcp_probe_avail(void)
 {
-        return bufsize - tcp_probe_used();
+        return bufsize - tcp_probe_used() - 1;
 }
 
 /*
@@ -116,7 +116,7 @@ static int jtcp_rcv_established(struct sock *sk, struct sk_buff *skb,
                         p->ssthresh = tcp_current_ssthresh(sk);
                         p->srtt = tp->srtt >> 3;
 
-                        tcp_probe.head = (tcp_probe.head + 1) % bufsize;
+                        tcp_probe.head = (tcp_probe.head + 1) & (bufsize - 1);
                 }
                 tcp_probe.lastcwnd = tp->snd_cwnd;
                 spin_unlock(&tcp_probe.lock);
@@ -149,7 +149,7 @@ static int tcpprobe_open(struct inode * inode, struct file * file)
 static int tcpprobe_sprint(char *tbuf, int n)
 {
         const struct tcp_log *p
-                = tcp_probe.log + tcp_probe.tail % bufsize;
+                = tcp_probe.log + tcp_probe.tail;
         struct timespec tv
                 = ktime_to_timespec(ktime_sub(p->tstamp, tcp_probe.start));
 
@@ -192,7 +192,7 @@ static ssize_t tcpprobe_read(struct file *file, char __user *buf,
                 width = tcpprobe_sprint(tbuf, sizeof(tbuf));
 
                 if (cnt + width < len)
-                        tcp_probe.tail = (tcp_probe.tail + 1) % bufsize;
+                        tcp_probe.tail = (tcp_probe.tail + 1) & (bufsize - 1);
 
                 spin_unlock_bh(&tcp_probe.lock);
 
@@ -222,9 +222,10 @@ static __init int tcpprobe_init(void)
         init_waitqueue_head(&tcp_probe.wait);
         spin_lock_init(&tcp_probe.lock);
 
-        if (bufsize < 0)
+        if (bufsize == 0)
                 return -EINVAL;
 
+        bufsize = roundup_pow_of_two(bufsize);
         tcp_probe.log = kcalloc(bufsize, sizeof(struct tcp_log), GFP_KERNEL);
         if (!tcp_probe.log)
                 goto err0;
@@ -236,7 +237,7 @@ static __init int tcpprobe_init(void)
         if (ret)
                 goto err1;
 
-        pr_info("TCP probe registered (port=%d)\n", port);
+        pr_info("TCP probe registered (port=%d) bufsize=%u\n", port, bufsize);
         return 0;
  err1:
         proc_net_remove(&init_net, procname);
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 8c08a28d8f83..67107d63c1cd 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -15,7 +15,6 @@
 #include <net/xfrm.h>
 #include <net/ip.h>
 
-static struct dst_ops xfrm4_dst_ops;
 static struct xfrm_policy_afinfo xfrm4_policy_afinfo;
 
 static struct dst_entry *xfrm4_dst_lookup(struct net *net, int tos,
@@ -190,8 +189,10 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
 
 static inline int xfrm4_garbage_collect(struct dst_ops *ops)
 {
-        xfrm4_policy_afinfo.garbage_collect(&init_net);
-        return (atomic_read(&xfrm4_dst_ops.entries) > xfrm4_dst_ops.gc_thresh*2);
+        struct net *net = container_of(ops, struct net, xfrm.xfrm4_dst_ops);
+
+        xfrm4_policy_afinfo.garbage_collect(net);
+        return (atomic_read(&ops->entries) > ops->gc_thresh * 2);
 }
 
 static void xfrm4_update_pmtu(struct dst_entry *dst, u32 mtu)
@@ -268,7 +269,7 @@ static struct xfrm_policy_afinfo xfrm4_policy_afinfo = {
 static struct ctl_table xfrm4_policy_table[] = {
         {
                 .procname       = "xfrm4_gc_thresh",
-                .data           = &xfrm4_dst_ops.gc_thresh,
+                .data           = &init_net.xfrm.xfrm4_dst_ops.gc_thresh,
                 .maxlen         = sizeof(int),
                 .mode           = 0644,
                 .proc_handler   = proc_dointvec,
@@ -295,8 +296,6 @@ static void __exit xfrm4_policy_fini(void)
 
 void __init xfrm4_init(int rt_max_size)
 {
-        xfrm4_state_init();
-        xfrm4_policy_init();
         /*
          * 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
@@ -308,6 +307,9 @@ void __init xfrm4_init(int rt_max_size)
          * and start cleaning when were 1/2 full
          */
         xfrm4_dst_ops.gc_thresh = rt_max_size/2;
+
+        xfrm4_state_init();
+        xfrm4_policy_init();
 #ifdef CONFIG_SYSCTL
         sysctl_hdr = register_net_sysctl_table(&init_net, net_ipv4_ctl_path,
                                                 xfrm4_policy_table);
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 312c20adc83f..624a54832a7c 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -63,6 +63,7 @@ struct nf_ct_frag6_queue
         struct inet_frag_queue  q;
 
         __be32                  id;             /* fragment id          */
+        u32                     user;
         struct in6_addr         saddr;
         struct in6_addr         daddr;
 
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 7254e3f899a7..dbdc696f5fc5 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -24,7 +24,6 @@
 #include <net/mip6.h>
 #endif
 
-static struct dst_ops xfrm6_dst_ops;
 static struct xfrm_policy_afinfo xfrm6_policy_afinfo;
 
 static struct dst_entry *xfrm6_dst_lookup(struct net *net, int tos,
@@ -224,8 +223,10 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
 
 static inline int xfrm6_garbage_collect(struct dst_ops *ops)
 {
-        xfrm6_policy_afinfo.garbage_collect(&init_net);
-        return (atomic_read(&xfrm6_dst_ops.entries) > xfrm6_dst_ops.gc_thresh*2);
+        struct net *net = container_of(ops, struct net, xfrm.xfrm6_dst_ops);
+
+        xfrm6_policy_afinfo.garbage_collect(net);
+        return (atomic_read(&ops->entries) > ops->gc_thresh * 2);
 }
 
 static void xfrm6_update_pmtu(struct dst_entry *dst, u32 mtu)
@@ -310,7 +311,7 @@ static void xfrm6_policy_fini(void)
 static struct ctl_table xfrm6_policy_table[] = {
         {
                 .procname       = "xfrm6_gc_thresh",
-                .data           = &xfrm6_dst_ops.gc_thresh,
+                .data           = &init_net.xfrm.xfrm6_dst_ops.gc_thresh,
                 .maxlen         = sizeof(int),
                 .mode           = 0644,
                 .proc_handler   = proc_dointvec,
@@ -326,13 +327,6 @@ int __init xfrm6_init(void)
         int ret;
         unsigned int gc_thresh;
 
-        ret = xfrm6_policy_init();
-        if (ret)
-                goto out;
-
-        ret = xfrm6_state_init();
-        if (ret)
-                goto out_policy;
         /*
          * We need a good default value for the xfrm6 gc threshold.
          * In ipv4 we set it to the route hash table size * 8, which
@@ -346,6 +340,15 @@ int __init xfrm6_init(void)
          */
         gc_thresh = FIB6_TABLE_HASHSZ * 8;
         xfrm6_dst_ops.gc_thresh = (gc_thresh < 1024) ? 1024 : gc_thresh;
+
+        ret = xfrm6_policy_init();
+        if (ret)
+                goto out;
+
+        ret = xfrm6_state_init();
+        if (ret)
+                goto out_policy;
+
 #ifdef CONFIG_SYSCTL
         sysctl_hdr = register_net_sysctl_table(&init_net, net_ipv6_ctl_path,
                                                 xfrm6_policy_table);
diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h
index 0ea258123b8e..d6bd9f517401 100644
--- a/net/mac80211/driver-trace.h
+++ b/net/mac80211/driver-trace.h
@@ -705,7 +705,7 @@ TRACE_EVENT(drv_ampdu_action,
                 __entry->ret = ret;
                 __entry->action = action;
                 __entry->tid = tid;
-                __entry->ssn = *ssn;
+                __entry->ssn = ssn ? *ssn : 0;
         ),
 
         TP_printk(
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 4725a549ad4d..0ecb16a9a883 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -469,16 +469,16 @@ static inline int xfrm_byidx_should_resize(struct net *net, int total)
         return 0;
 }
 
-void xfrm_spd_getinfo(struct xfrmk_spdinfo *si)
+void xfrm_spd_getinfo(struct net *net, struct xfrmk_spdinfo *si)
 {
         read_lock_bh(&xfrm_policy_lock);
-        si->incnt = init_net.xfrm.policy_count[XFRM_POLICY_IN];
-        si->outcnt = init_net.xfrm.policy_count[XFRM_POLICY_OUT];
-        si->fwdcnt = init_net.xfrm.policy_count[XFRM_POLICY_FWD];
-        si->inscnt = init_net.xfrm.policy_count[XFRM_POLICY_IN+XFRM_POLICY_MAX];
-        si->outscnt = init_net.xfrm.policy_count[XFRM_POLICY_OUT+XFRM_POLICY_MAX];
-        si->fwdscnt = init_net.xfrm.policy_count[XFRM_POLICY_FWD+XFRM_POLICY_MAX];
-        si->spdhcnt = init_net.xfrm.policy_idx_hmask;
+        si->incnt = net->xfrm.policy_count[XFRM_POLICY_IN];
+        si->outcnt = net->xfrm.policy_count[XFRM_POLICY_OUT];
+        si->fwdcnt = net->xfrm.policy_count[XFRM_POLICY_FWD];
+        si->inscnt = net->xfrm.policy_count[XFRM_POLICY_IN+XFRM_POLICY_MAX];
+        si->outscnt = net->xfrm.policy_count[XFRM_POLICY_OUT+XFRM_POLICY_MAX];
+        si->fwdscnt = net->xfrm.policy_count[XFRM_POLICY_FWD+XFRM_POLICY_MAX];
+        si->spdhcnt = net->xfrm.policy_idx_hmask;
         si->spdhmcnt = xfrm_policy_hashmax;
         read_unlock_bh(&xfrm_policy_lock);
 }
@@ -1309,15 +1309,28 @@ static inline int xfrm_get_tos(struct flowi *fl, int family)
         return tos;
 }
 
-static inline struct xfrm_dst *xfrm_alloc_dst(int family)
+static inline struct xfrm_dst *xfrm_alloc_dst(struct net *net, int family)
 {
         struct xfrm_policy_afinfo *afinfo = xfrm_policy_get_afinfo(family);
+        struct dst_ops *dst_ops;
         struct xfrm_dst *xdst;
 
         if (!afinfo)
                 return ERR_PTR(-EINVAL);
 
-        xdst = dst_alloc(afinfo->dst_ops) ?: ERR_PTR(-ENOBUFS);
+        switch (family) {
+        case AF_INET:
+                dst_ops = &net->xfrm.xfrm4_dst_ops;
+                break;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+        case AF_INET6:
+                dst_ops = &net->xfrm.xfrm6_dst_ops;
+                break;
+#endif
+        default:
+                BUG();
+        }
+        xdst = dst_alloc(dst_ops) ?: ERR_PTR(-ENOBUFS);
 
         xfrm_policy_put_afinfo(afinfo);
 
@@ -1366,6 +1379,7 @@ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy,
                                             struct flowi *fl,
                                             struct dst_entry *dst)
 {
+        struct net *net = xp_net(policy);
         unsigned long now = jiffies;
         struct net_device *dev;
         struct dst_entry *dst_prev = NULL;
@@ -1389,7 +1403,7 @@ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy,
         dst_hold(dst);
 
         for (; i < nx; i++) {
-                struct xfrm_dst *xdst = xfrm_alloc_dst(family);
+                struct xfrm_dst *xdst = xfrm_alloc_dst(net, family);
                 struct dst_entry *dst1 = &xdst->u.dst;
 
                 err = PTR_ERR(xdst);
@@ -2279,6 +2293,7 @@ EXPORT_SYMBOL(xfrm_bundle_ok);
 
 int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo)
 {
+        struct net *net;
         int err = 0;
         if (unlikely(afinfo == NULL))
                 return -EINVAL;
@@ -2302,6 +2317,27 @@ int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo)
                 xfrm_policy_afinfo[afinfo->family] = afinfo;
         }
         write_unlock_bh(&xfrm_policy_afinfo_lock);
+
+        rtnl_lock();
+        for_each_net(net) {
+                struct dst_ops *xfrm_dst_ops;
+
+                switch (afinfo->family) {
+                case AF_INET:
+                        xfrm_dst_ops = &net->xfrm.xfrm4_dst_ops;
+                        break;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+                case AF_INET6:
+                        xfrm_dst_ops = &net->xfrm.xfrm6_dst_ops;
+                        break;
+#endif
+                default:
+                        BUG();
+                }
+                *xfrm_dst_ops = *afinfo->dst_ops;
+        }
+        rtnl_unlock();
+
         return err;
 }
 EXPORT_SYMBOL(xfrm_policy_register_afinfo);
@@ -2332,6 +2368,22 @@ int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo)
 }
 EXPORT_SYMBOL(xfrm_policy_unregister_afinfo);
 
+static void __net_init xfrm_dst_ops_init(struct net *net)
+{
+        struct xfrm_policy_afinfo *afinfo;
+
+        read_lock_bh(&xfrm_policy_afinfo_lock);
+        afinfo = xfrm_policy_afinfo[AF_INET];
+        if (afinfo)
+                net->xfrm.xfrm4_dst_ops = *afinfo->dst_ops;
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+        afinfo = xfrm_policy_afinfo[AF_INET6];
+        if (afinfo)
+                net->xfrm.xfrm6_dst_ops = *afinfo->dst_ops;
+#endif
+        read_unlock_bh(&xfrm_policy_afinfo_lock);
+}
+
 static struct xfrm_policy_afinfo *xfrm_policy_get_afinfo(unsigned short family)
 {
         struct xfrm_policy_afinfo *afinfo;
@@ -2494,6 +2546,7 @@ static int __net_init xfrm_net_init(struct net *net)
         rv = xfrm_policy_init(net);
         if (rv < 0)
                 goto out_policy;
+        xfrm_dst_ops_init(net);
         rv = xfrm_sysctl_init(net);
         if (rv < 0)
                 goto out_sysctl;
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index d847f1a52b44..b36cc344474b 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -641,11 +641,11 @@ out:
 }
 EXPORT_SYMBOL(xfrm_state_flush);
 
-void xfrm_sad_getinfo(struct xfrmk_sadinfo *si)
+void xfrm_sad_getinfo(struct net *net, struct xfrmk_sadinfo *si)
 {
         spin_lock_bh(&xfrm_state_lock);
-        si->sadcnt = init_net.xfrm.state_num;
-        si->sadhcnt = init_net.xfrm.state_hmask;
+        si->sadcnt = net->xfrm.state_num;
+        si->sadhcnt = net->xfrm.state_hmask;
         si->sadhmcnt = xfrm_state_hashmax;
         spin_unlock_bh(&xfrm_state_lock);
 }
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 1ada6186933c..d5a712976004 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -781,7 +781,8 @@ static inline size_t xfrm_spdinfo_msgsize(void)
                + nla_total_size(sizeof(struct xfrmu_spdhinfo));
 }
 
-static int build_spdinfo(struct sk_buff *skb, u32 pid, u32 seq, u32 flags)
+static int build_spdinfo(struct sk_buff *skb, struct net *net,
+                         u32 pid, u32 seq, u32 flags)
 {
         struct xfrmk_spdinfo si;
         struct xfrmu_spdinfo spc;
@@ -795,7 +796,7 @@ static int build_spdinfo(struct sk_buff *skb, u32 pid, u32 seq, u32 flags)
 
         f = nlmsg_data(nlh);
         *f = flags;
-        xfrm_spd_getinfo(&si);
+        xfrm_spd_getinfo(net, &si);
         spc.incnt = si.incnt;
         spc.outcnt = si.outcnt;
         spc.fwdcnt = si.fwdcnt;
@@ -828,7 +829,7 @@ static int xfrm_get_spdinfo(struct sk_buff *skb, struct nlmsghdr *nlh,
         if (r_skb == NULL)
                 return -ENOMEM;
 
-        if (build_spdinfo(r_skb, spid, seq, *flags) < 0)
+        if (build_spdinfo(r_skb, net, spid, seq, *flags) < 0)
                 BUG();
 
         return nlmsg_unicast(net->xfrm.nlsk, r_skb, spid);
@@ -841,7 +842,8 @@ static inline size_t xfrm_sadinfo_msgsize(void)
                + nla_total_size(4); /* XFRMA_SAD_CNT */
 }
 
-static int build_sadinfo(struct sk_buff *skb, u32 pid, u32 seq, u32 flags)
+static int build_sadinfo(struct sk_buff *skb, struct net *net,
+                         u32 pid, u32 seq, u32 flags)
 {
         struct xfrmk_sadinfo si;
         struct xfrmu_sadhinfo sh;
@@ -854,7 +856,7 @@ static int build_sadinfo(struct sk_buff *skb, u32 pid, u32 seq, u32 flags)
 
         f = nlmsg_data(nlh);
         *f = flags;
-        xfrm_sad_getinfo(&si);
+        xfrm_sad_getinfo(net, &si);
 
         sh.sadhmcnt = si.sadhmcnt;
         sh.sadhcnt = si.sadhcnt;
@@ -882,7 +884,7 @@ static int xfrm_get_sadinfo(struct sk_buff *skb, struct nlmsghdr *nlh,
         if (r_skb == NULL)
                 return -ENOMEM;
 
-        if (build_sadinfo(r_skb, spid, seq, *flags) < 0)
+        if (build_sadinfo(r_skb, net, spid, seq, *flags) < 0)
                 BUG();
 
         return nlmsg_unicast(net->xfrm.nlsk, r_skb, spid);