Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Merge 'net' into 'net-next' to get the AF_PACKET bug fix that
Daniel's direct transmit changes depend upon.

Signed-off-by: David S. Miller <davem@davemloft.net>

37 files changed, 314 insertions, 208 deletions

diff --git a/Documentation/devicetree/bindings/net/davinci_emac.txt b/Documentation/devicetree/bindings/net/davinci_emac.txt
index 48b259e29e87..bad381faf036 100644
--- a/Documentation/devicetree/bindings/net/davinci_emac.txt
+++ b/Documentation/devicetree/bindings/net/davinci_emac.txt
@@ -4,7 +4,7 @@ This file provides information, what the device node
 for the davinci_emac interface contains.
 
 Required properties:
-- compatible: "ti,davinci-dm6467-emac";
+- compatible: "ti,davinci-dm6467-emac" or "ti,am3517-emac"
 - reg: Offset and length of the register set for the device
 - ti,davinci-ctrl-reg-offset: offset to control register
 - ti,davinci-ctrl-mod-reg-offset: offset to control module register
diff --git a/Documentation/networking/packet_mmap.txt b/Documentation/networking/packet_mmap.txt
index c01223628a87..8e48e3b14227 100644
--- a/Documentation/networking/packet_mmap.txt
+++ b/Documentation/networking/packet_mmap.txt
@@ -123,6 +123,16 @@ Transmission process is similar to capture as shown below.
 [shutdown]  close() --------> destruction of the transmission socket and
                               deallocation of all associated resources.
 
+Socket creation and destruction is also straight forward, and is done
+the same way as in capturing described in the previous paragraph:
+
+ int fd = socket(PF_PACKET, mode, 0);
+
+The protocol can optionally be 0 in case we only want to transmit
+via this socket, which avoids an expensive call to packet_rcv().
+In this case, you also need to bind(2) the TX_RING with sll_protocol = 0
+set. Otherwise, htons(ETH_P_ALL) or any other protocol, for example.
+
 Binding the socket to your network interface is mandatory (with zero copy) to
 know the header size of frames used in the circular buffer.
 
diff --git a/MAINTAINERS b/MAINTAINERS
index b9ea9321adde..63ae89617fc5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4450,10 +4450,8 @@ M:	Bruce Allan <bruce.w.allan@intel.com>
 M:      Carolyn Wyborny <carolyn.wyborny@intel.com>
 M:      Don Skidmore <donald.c.skidmore@intel.com>
 M:      Greg Rose <gregory.v.rose@intel.com>
-M:      Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
 M:      Alex Duyck <alexander.h.duyck@intel.com>
 M:      John Ronciak <john.ronciak@intel.com>
-M:      Tushar Dave <tushar.n.dave@intel.com>
 L:      e1000-devel@lists.sourceforge.net
 W:      http://www.intel.com/support/feedback.htm
 W:      http://e1000.sourceforge.net/
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 36eab0c4fb33..398e299ee1bd 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4199,9 +4199,9 @@ static int bond_check_params(struct bond_params *params)
              (arp_ip_count < BOND_MAX_ARP_TARGETS) && arp_ip_target[i]; i++) {
                 /* not complete check, but should be good enough to
                    catch mistakes */
-                __be32 ip = in_aton(arp_ip_target[i]);
-                if (!isdigit(arp_ip_target[i][0]) || ip == 0 ||
-                    ip == htonl(INADDR_BROADCAST)) {
+                __be32 ip;
+                if (!in4_pton(arp_ip_target[i], -1, (u8 *)&ip, -1, NULL) ||
+                    IS_IP_TARGET_UNUSABLE_ADDRESS(ip)) {
                         pr_warning("Warning: bad arp_ip_target module parameter (%s), ARP monitoring will not be performed\n",
                                    arp_ip_target[i]);
                         arp_interval = 0;
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index c778a26fb4da..e46467683e82 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -1634,12 +1634,12 @@ static ssize_t bonding_show_packets_per_slave(struct device *d,
                                               char *buf)
 {
         struct bonding *bond = to_bond(d);
-        int packets_per_slave = bond->params.packets_per_slave;
+        unsigned int packets_per_slave = bond->params.packets_per_slave;
 
         if (packets_per_slave > 1)
                 packets_per_slave = reciprocal_value(packets_per_slave);
 
-        return sprintf(buf, "%d\n", packets_per_slave);
+        return sprintf(buf, "%u\n", packets_per_slave);
 }
 
 static ssize_t bonding_store_packets_per_slave(struct device *d,
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index 0216d592d0ce..2e46c28fc601 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -3114,6 +3114,11 @@ int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs_param)
 {
         struct bnx2x *bp = netdev_priv(pci_get_drvdata(dev));
 
+        if (!IS_SRIOV(bp)) {
+                BNX2X_ERR("failed to configure SR-IOV since vfdb was not allocated. Check dmesg for errors in probe stage\n");
+                return -EINVAL;
+        }
+
         DP(BNX2X_MSG_IOV, "bnx2x_sriov_configure called with %d, BNX2X_NR_VIRTFN(bp) was %d\n",
            num_vfs_param, BNX2X_NR_VIRTFN(bp));
 
diff --git a/drivers/net/ethernet/emulex/benet/be_hw.h b/drivers/net/ethernet/emulex/benet/be_hw.h
index 3e2162121601..dc88782185f2 100644
--- a/drivers/net/ethernet/emulex/benet/be_hw.h
+++ b/drivers/net/ethernet/emulex/benet/be_hw.h
@@ -64,6 +64,9 @@
 #define SLIPORT_ERROR_NO_RESOURCE1      0x2
 #define SLIPORT_ERROR_NO_RESOURCE2      0x9
 
+#define SLIPORT_ERROR_FW_RESET1         0x2
+#define SLIPORT_ERROR_FW_RESET2         0x0
+
 /********* Memory BAR register ************/
 #define PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET      0xfc
 /* Host Interrupt Enable, if set interrupts are enabled although "PCI Interrupt
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index fee64bf10446..0fde69d5cb6a 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -2464,8 +2464,16 @@ void be_detect_error(struct be_adapter *adapter)
          */
         if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
                 adapter->hw_error = true;
-                dev_err(&adapter->pdev->dev,
-                        "Error detected in the card\n");
+                /* Do not log error messages if its a FW reset */
+                if (sliport_err1 == SLIPORT_ERROR_FW_RESET1 &&
+                    sliport_err2 == SLIPORT_ERROR_FW_RESET2) {
+                        dev_info(&adapter->pdev->dev,
+                                 "Firmware update in progress\n");
+                        return;
+                } else {
+                        dev_err(&adapter->pdev->dev,
+                                "Error detected in the card\n");
+                }
         }
 
         if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
@@ -2932,28 +2940,35 @@ static void be_cancel_worker(struct be_adapter *adapter)
         }
 }
 
-static int be_clear(struct be_adapter *adapter)
+static void be_mac_clear(struct be_adapter *adapter)
 {
         int i;
 
+        if (adapter->pmac_id) {
+                for (i = 0; i < (adapter->uc_macs + 1); i++)
+                        be_cmd_pmac_del(adapter, adapter->if_handle,
+                                        adapter->pmac_id[i], 0);
+                adapter->uc_macs = 0;
+
+                kfree(adapter->pmac_id);
+                adapter->pmac_id = NULL;
+        }
+}
+
+static int be_clear(struct be_adapter *adapter)
+{
         be_cancel_worker(adapter);
 
         if (sriov_enabled(adapter))
                 be_vf_clear(adapter);
 
         /* delete the primary mac along with the uc-mac list */
-        for (i = 0; i < (adapter->uc_macs + 1); i++)
-                be_cmd_pmac_del(adapter, adapter->if_handle,
-                                adapter->pmac_id[i], 0);
-        adapter->uc_macs = 0;
+        be_mac_clear(adapter);
 
         be_cmd_if_destroy(adapter, adapter->if_handle,  0);
 
         be_clear_queues(adapter);
 
-        kfree(adapter->pmac_id);
-        adapter->pmac_id = NULL;
-
         be_msix_disable(adapter);
         return 0;
 }
@@ -3812,6 +3827,8 @@ static int lancer_fw_download(struct be_adapter *adapter,
         }
 
         if (change_status == LANCER_FW_RESET_NEEDED) {
+                dev_info(&adapter->pdev->dev,
+                         "Resetting adapter to activate new FW\n");
                 status = lancer_physdev_ctrl(adapter,
                                              PHYSDEV_CONTROL_FW_RESET_MASK);
                 if (status) {
@@ -4363,13 +4380,13 @@ static int lancer_recover_func(struct be_adapter *adapter)
                         goto err;
         }
 
-        dev_err(dev, "Error recovery successful\n");
+        dev_err(dev, "Adapter recovery successful\n");
         return 0;
 err:
         if (status == -EAGAIN)
                 dev_err(dev, "Waiting for resource provisioning\n");
         else
-                dev_err(dev, "Error recovery failed\n");
+                dev_err(dev, "Adapter recovery failed\n");
 
         return status;
 }
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index b8e232b4ea2d..d5f0d72e5e33 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -1378,7 +1378,7 @@ static void mvneta_rxq_drop_pkts(struct mvneta_port *pp,
 
                 dev_kfree_skb_any(skb);
                 dma_unmap_single(pp->dev->dev.parent, rx_desc->buf_phys_addr,
-                                 rx_desc->data_size, DMA_FROM_DEVICE);
+                                 MVNETA_RX_BUF_SIZE(pp->pkt_size), DMA_FROM_DEVICE);
         }
 
         if (rx_done)
@@ -1424,7 +1424,7 @@ static int mvneta_rx(struct mvneta_port *pp, int rx_todo,
                 }
 
                 dma_unmap_single(pp->dev->dev.parent, rx_desc->buf_phys_addr,
-                                 rx_desc->data_size, DMA_FROM_DEVICE);
+                                 MVNETA_RX_BUF_SIZE(pp->pkt_size), DMA_FROM_DEVICE);
 
                 rx_bytes = rx_desc->data_size -
                         (ETH_FCS_LEN + MVNETA_MH_SIZE);
diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c
index d8bdaf6d82d2..493a1125f54f 100644
--- a/drivers/net/ethernet/nvidia/forcedeth.c
+++ b/drivers/net/ethernet/nvidia/forcedeth.c
@@ -5149,8 +5149,10 @@ static void nv_self_test(struct net_device *dev, struct ethtool_test *test, u64
 {
         struct fe_priv *np = netdev_priv(dev);
         u8 __iomem *base = get_hwbase(dev);
-        int result;
-        memset(buffer, 0, nv_get_sset_count(dev, ETH_SS_TEST)*sizeof(u64));
+        int result, count;
+
+        count = nv_get_sset_count(dev, ETH_SS_TEST);
+        memset(buffer, 0, count * sizeof(u64));
 
         if (!nv_link_test(dev)) {
                 test->flags |= ETH_TEST_FL_FAILED;
@@ -5194,7 +5196,7 @@ static void nv_self_test(struct net_device *dev, struct ethtool_test *test, u64
                         return;
                 }
 
-                if (!nv_loopback_test(dev)) {
+                if (count > NV_TEST_COUNT_BASE && !nv_loopback_test(dev)) {
                         test->flags |= ETH_TEST_FL_FAILED;
                         buffer[3] = 1;
                 }
diff --git a/drivers/net/ethernet/qlogic/qlge/qlge.h b/drivers/net/ethernet/qlogic/qlge/qlge.h
index 0c9c4e895595..03517478e589 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge.h
+++ b/drivers/net/ethernet/qlogic/qlge/qlge.h
@@ -18,7 +18,7 @@
  */
 #define DRV_NAME        "qlge"
 #define DRV_STRING      "QLogic 10 Gigabit PCI-E Ethernet Driver "
-#define DRV_VERSION     "1.00.00.33"
+#define DRV_VERSION     "1.00.00.34"
 
 #define WQ_ADDR_ALIGN   0x3     /* 4 byte alignment */
 
diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_ethtool.c b/drivers/net/ethernet/qlogic/qlge/qlge_ethtool.c
index 0780e039b271..8dee1beb9854 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qlge/qlge_ethtool.c
@@ -181,6 +181,7 @@ static const char ql_gstrings_test[][ETH_GSTRING_LEN] = {
 };
 #define QLGE_TEST_LEN (sizeof(ql_gstrings_test) / ETH_GSTRING_LEN)
 #define QLGE_STATS_LEN ARRAY_SIZE(ql_gstrings_stats)
+#define QLGE_RCV_MAC_ERR_STATS  7
 
 static int ql_update_ring_coalescing(struct ql_adapter *qdev)
 {
@@ -280,6 +281,9 @@ static void ql_update_stats(struct ql_adapter *qdev)
                 iter++;
         }
 
+        /* Update receive mac error statistics */
+        iter += QLGE_RCV_MAC_ERR_STATS;
+
         /*
          * Get Per-priority TX pause frame counter statistics.
          */
diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_main.c b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
index a245dc18d769..449f506d2e8f 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge_main.c
+++ b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
@@ -2376,14 +2376,6 @@ static netdev_features_t qlge_fix_features(struct net_device *ndev,
         netdev_features_t features)
 {
         int err;
-        /*
-         * Since there is no support for separate rx/tx vlan accel
-         * enable/disable make sure tx flag is always in same state as rx.
-         */
-        if (features & NETIF_F_HW_VLAN_CTAG_RX)
-                features |= NETIF_F_HW_VLAN_CTAG_TX;
-        else
-                features &= ~NETIF_F_HW_VLAN_CTAG_TX;
 
         /* Update the behavior of vlan accel in the adapter */
         err = qlge_update_hw_vlan_features(ndev, features);
diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c
index 41ba974bf37c..cd9b164a0434 100644
--- a/drivers/net/ethernet/ti/davinci_emac.c
+++ b/drivers/net/ethernet/ti/davinci_emac.c
@@ -61,6 +61,7 @@
 #include <linux/davinci_emac.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
+#include <linux/of_device.h>
 #include <linux/of_irq.h>
 #include <linux/of_net.h>
 
@@ -1752,10 +1753,14 @@ static const struct net_device_ops emac_netdev_ops = {
 #endif
 };
 
+static const struct of_device_id davinci_emac_of_match[];
+
 static struct emac_platform_data *
 davinci_emac_of_get_pdata(struct platform_device *pdev, struct emac_priv *priv)
 {
         struct device_node *np;
+        const struct of_device_id *match;
+        const struct emac_platform_data *auxdata;
         struct emac_platform_data *pdata = NULL;
         const u8 *mac_addr;
 
@@ -1793,7 +1798,20 @@ davinci_emac_of_get_pdata(struct platform_device *pdev, struct emac_priv *priv)
 
         priv->phy_node = of_parse_phandle(np, "phy-handle", 0);
         if (!priv->phy_node)
-                pdata->phy_id = "";
+                pdata->phy_id = NULL;
+
+        auxdata = pdev->dev.platform_data;
+        if (auxdata) {
+                pdata->interrupt_enable = auxdata->interrupt_enable;
+                pdata->interrupt_disable = auxdata->interrupt_disable;
+        }
+
+        match = of_match_device(davinci_emac_of_match, &pdev->dev);
+        if (match && match->data) {
+                auxdata = match->data;
+                pdata->version = auxdata->version;
+                pdata->hw_ram_addr = auxdata->hw_ram_addr;
+        }
 
         pdev->dev.platform_data = pdata;
 
@@ -2020,8 +2038,14 @@ static const struct dev_pm_ops davinci_emac_pm_ops = {
 };
 
 #if IS_ENABLED(CONFIG_OF)
+static const struct emac_platform_data am3517_emac_data = {
+        .version                = EMAC_VERSION_2,
+        .hw_ram_addr            = 0x01e20000,
+};
+
 static const struct of_device_id davinci_emac_of_match[] = {
         {.compatible = "ti,davinci-dm6467-emac", },
+        {.compatible = "ti,am3517-emac", .data = &am3517_emac_data, },
         {},
 };
 MODULE_DEVICE_TABLE(of, davinci_emac_of_match);
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 4c6f84c79e95..4a34bcb6549f 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -872,6 +872,8 @@ static ssize_t macvtap_aio_read(struct kiocb *iocb, const struct iovec *iv,
 
         ret = macvtap_do_read(q, iv, len, file->f_flags & O_NONBLOCK);
         ret = min_t(ssize_t, ret, len); /* XXX copied from tun.c. Why? */
+        if (ret > 0)
+                iocb->ki_pos = ret;
 out:
         return ret;
 }
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 6b0b2a057a47..3c5a8d8cde50 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1355,6 +1355,8 @@ static ssize_t tun_chr_aio_read(struct kiocb *iocb, const struct iovec *iv,
         ret = tun_do_read(tun, tfile, iv, len,
                           file->f_flags & O_NONBLOCK);
         ret = min_t(ssize_t, ret, len);
+        if (ret > 0)
+                iocb->ki_pos = ret;
 out:
         tun_put(tun);
         return ret;
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 5c24288814db..56c2229d28fd 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -425,10 +425,10 @@ static void receive_buf(struct receive_queue *rq, void *buf, unsigned int len)
         if (unlikely(len < sizeof(struct virtio_net_hdr) + ETH_HLEN)) {
                 pr_debug("%s: short packet %i\n", dev->name, len);
                 dev->stats.rx_length_errors++;
-                if (vi->big_packets)
-                        give_pages(rq, buf);
-                else if (vi->mergeable_rx_bufs)
+                if (vi->mergeable_rx_bufs)
                         put_page(virt_to_head_page(buf));
+                else if (vi->big_packets)
+                        give_pages(rq, buf);
                 else
                         dev_kfree_skb(buf);
                 return;
@@ -1366,6 +1366,11 @@ static void virtnet_config_changed(struct virtio_device *vdev)
 
 static void virtnet_free_queues(struct virtnet_info *vi)
 {
+        int i;
+
+        for (i = 0; i < vi->max_queue_pairs; i++)
+                netif_napi_del(&vi->rq[i].napi);
+
         kfree(vi->rq);
         kfree(vi->sq);
 }
@@ -1395,10 +1400,10 @@ static void free_unused_bufs(struct virtnet_info *vi)
                 struct virtqueue *vq = vi->rq[i].vq;
 
                 while ((buf = virtqueue_detach_unused_buf(vq)) != NULL) {
-                        if (vi->big_packets)
-                                give_pages(&vi->rq[i], buf);
-                        else if (vi->mergeable_rx_bufs)
+                        if (vi->mergeable_rx_bufs)
                                 put_page(virt_to_head_page(buf));
+                        else if (vi->big_packets)
+                                give_pages(&vi->rq[i], buf);
                         else
                                 dev_kfree_skb(buf);
                         --vi->rq[i].num;
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 64f0e0d18b81..acf13920e6d1 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -1149,49 +1149,72 @@ static int xenvif_set_skb_gso(struct xenvif *vif,
         return 0;
 }
 
-static inline void maybe_pull_tail(struct sk_buff *skb, unsigned int len)
+static inline int maybe_pull_tail(struct sk_buff *skb, unsigned int len,
+                                  unsigned int max)
 {
-        if (skb_is_nonlinear(skb) && skb_headlen(skb) < len) {
-                /* If we need to pullup then pullup to the max, so we
-                 * won't need to do it again.
-                 */
-                int target = min_t(int, skb->len, MAX_TCP_HEADER);
-                __pskb_pull_tail(skb, target - skb_headlen(skb));
-        }
+        if (skb_headlen(skb) >= len)
+                return 0;
+
+        /* If we need to pullup then pullup to the max, so we
+         * won't need to do it again.
+         */
+        if (max > skb->len)
+                max = skb->len;
+
+        if (__pskb_pull_tail(skb, max - skb_headlen(skb)) == NULL)
+                return -ENOMEM;
+
+        if (skb_headlen(skb) < len)
+                return -EPROTO;
+
+        return 0;
 }
 
+/* This value should be large enough to cover a tagged ethernet header plus
+ * maximally sized IP and TCP or UDP headers.
+ */
+#define MAX_IP_HDR_LEN 128
+
 static int checksum_setup_ip(struct xenvif *vif, struct sk_buff *skb,
                              int recalculate_partial_csum)
 {
-        struct iphdr *iph = (void *)skb->data;
-        unsigned int header_size;
         unsigned int off;
-        int err = -EPROTO;
+        bool fragment;
+        int err;
+
+        fragment = false;
+
+        err = maybe_pull_tail(skb,
+                              sizeof(struct iphdr),
+                              MAX_IP_HDR_LEN);
+        if (err < 0)
+                goto out;
 
-        off = sizeof(struct iphdr);
+        if (ip_hdr(skb)->frag_off & htons(IP_OFFSET | IP_MF))
+                fragment = true;
 
-        header_size = skb->network_header + off + MAX_IPOPTLEN;
-        maybe_pull_tail(skb, header_size);
+        off = ip_hdrlen(skb);
 
-        off = iph->ihl * 4;
+        err = -EPROTO;
 
-        switch (iph->protocol) {
+        switch (ip_hdr(skb)->protocol) {
         case IPPROTO_TCP:
                 if (!skb_partial_csum_set(skb, off,
                                           offsetof(struct tcphdr, check)))
                         goto out;
 
                 if (recalculate_partial_csum) {
-                        struct tcphdr *tcph = tcp_hdr(skb);
-
-                        header_size = skb->network_header +
-                                off +
-                                sizeof(struct tcphdr);
-                        maybe_pull_tail(skb, header_size);
-
-                        tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
-                                                         skb->len - off,
-                                                         IPPROTO_TCP, 0);
+                        err = maybe_pull_tail(skb,
+                                              off + sizeof(struct tcphdr),
+                                              MAX_IP_HDR_LEN);
+                        if (err < 0)
+                                goto out;
+
+                        tcp_hdr(skb)->check =
+                                ~csum_tcpudp_magic(ip_hdr(skb)->saddr,
+                                                   ip_hdr(skb)->daddr,
+                                                   skb->len - off,
+                                                   IPPROTO_TCP, 0);
                 }
                 break;
         case IPPROTO_UDP:
@@ -1200,24 +1223,20 @@ static int checksum_setup_ip(struct xenvif *vif, struct sk_buff *skb,
                         goto out;
 
                 if (recalculate_partial_csum) {
-                        struct udphdr *udph = udp_hdr(skb);
-
-                        header_size = skb->network_header +
-                                off +
-                                sizeof(struct udphdr);
-                        maybe_pull_tail(skb, header_size);
-
-                        udph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
-                                                         skb->len - off,
-                                                         IPPROTO_UDP, 0);
+                        err = maybe_pull_tail(skb,
+                                              off + sizeof(struct udphdr),
+                                              MAX_IP_HDR_LEN);
+                        if (err < 0)
+                                goto out;
+
+                        udp_hdr(skb)->check =
+                                ~csum_tcpudp_magic(ip_hdr(skb)->saddr,
+                                                   ip_hdr(skb)->daddr,
+                                                   skb->len - off,
+                                                   IPPROTO_UDP, 0);
                 }
                 break;
         default:
-                if (net_ratelimit())
-                        netdev_err(vif->dev,
-                                   "Attempting to checksum a non-TCP/UDP packet, "
-                                   "dropping a protocol %d packet\n",
-                                   iph->protocol);
                 goto out;
         }
 
@@ -1227,75 +1246,99 @@ out:
         return err;
 }
 
+/* This value should be large enough to cover a tagged ethernet header plus
+ * an IPv6 header, all options, and a maximal TCP or UDP header.
+ */
+#define MAX_IPV6_HDR_LEN 256
+
+#define OPT_HDR(type, skb, off) \
+        (type *)(skb_network_header(skb) + (off))
+
 static int checksum_setup_ipv6(struct xenvif *vif, struct sk_buff *skb,
                                int recalculate_partial_csum)
 {
-        int err = -EPROTO;
-        struct ipv6hdr *ipv6h = (void *)skb->data;
+        int err;
         u8 nexthdr;
-        unsigned int header_size;
         unsigned int off;
+        unsigned int len;
         bool fragment;
         bool done;
 
+        fragment = false;
         done = false;
 
         off = sizeof(struct ipv6hdr);
 
-        header_size = skb->network_header + off;
-        maybe_pull_tail(skb, header_size);
+        err = maybe_pull_tail(skb, off, MAX_IPV6_HDR_LEN);
+        if (err < 0)
+                goto out;
 
-        nexthdr = ipv6h->nexthdr;
+        nexthdr = ipv6_hdr(skb)->nexthdr;
 
-        while ((off <= sizeof(struct ipv6hdr) + ntohs(ipv6h->payload_len)) &&
-               !done) {
+        len = sizeof(struct ipv6hdr) + ntohs(ipv6_hdr(skb)->payload_len);
+        while (off <= len && !done) {
                 switch (nexthdr) {
                 case IPPROTO_DSTOPTS:
                 case IPPROTO_HOPOPTS:
                 case IPPROTO_ROUTING: {
-                        struct ipv6_opt_hdr *hp = (void *)(skb->data + off);
+                        struct ipv6_opt_hdr *hp;
 
-                        header_size = skb->network_header +
-                                off +
-                                sizeof(struct ipv6_opt_hdr);
-                        maybe_pull_tail(skb, header_size);
+                        err = maybe_pull_tail(skb,
+                                              off +
+                                              sizeof(struct ipv6_opt_hdr),
+                                              MAX_IPV6_HDR_LEN);
+                        if (err < 0)
+                                goto out;
 
+                        hp = OPT_HDR(struct ipv6_opt_hdr, skb, off);
                         nexthdr = hp->nexthdr;
                         off += ipv6_optlen(hp);
                         break;
                 }
                 case IPPROTO_AH: {
-                        struct ip_auth_hdr *hp = (void *)(skb->data + off);
+                        struct ip_auth_hdr *hp;
+
+                        err = maybe_pull_tail(skb,
+                                              off +
+                                              sizeof(struct ip_auth_hdr),
+                                              MAX_IPV6_HDR_LEN);
+                        if (err < 0)
+                                goto out;
+
+                        hp = OPT_HDR(struct ip_auth_hdr, skb, off);
+                        nexthdr = hp->nexthdr;
+                        off += ipv6_authlen(hp);
+                        break;
+                }
+                case IPPROTO_FRAGMENT: {
+                        struct frag_hdr *hp;
 
-                        header_size = skb->network_header +
-                                off +
-                                sizeof(struct ip_auth_hdr);
-                        maybe_pull_tail(skb, header_size);
+                        err = maybe_pull_tail(skb,
+                                              off +
+                                              sizeof(struct frag_hdr),
+                                              MAX_IPV6_HDR_LEN);
+                        if (err < 0)
+                                goto out;
+
+                        hp = OPT_HDR(struct frag_hdr, skb, off);
+
+                        if (hp->frag_off & htons(IP6_OFFSET | IP6_MF))
+                                fragment = true;
 
                         nexthdr = hp->nexthdr;
-                        off += (hp->hdrlen+2)<<2;
+                        off += sizeof(struct frag_hdr);
                         break;
                 }
-                case IPPROTO_FRAGMENT:
-                        fragment = true;
-                        /* fall through */
                 default:
                         done = true;
                         break;
                 }
         }
 
-        if (!done) {
-                if (net_ratelimit())
-                        netdev_err(vif->dev, "Failed to parse packet header\n");
-                goto out;
-        }
+        err = -EPROTO;
 
-        if (fragment) {
-                if (net_ratelimit())
-                        netdev_err(vif->dev, "Packet is a fragment!\n");
+        if (!done || fragment)
                 goto out;
-        }
 
         switch (nexthdr) {
         case IPPROTO_TCP:
@@ -1304,17 +1347,17 @@ static int checksum_setup_ipv6(struct xenvif *vif, struct sk_buff *skb,
                         goto out;
 
                 if (recalculate_partial_csum) {
-                        struct tcphdr *tcph = tcp_hdr(skb);
-
-                        header_size = skb->network_header +
-                                off +
-                                sizeof(struct tcphdr);
-                        maybe_pull_tail(skb, header_size);
-
-                        tcph->check = ~csum_ipv6_magic(&ipv6h->saddr,
-                                                       &ipv6h->daddr,
-                                                       skb->len - off,
-                                                       IPPROTO_TCP, 0);
+                        err = maybe_pull_tail(skb,
+                                              off + sizeof(struct tcphdr),
+                                              MAX_IPV6_HDR_LEN);
+                        if (err < 0)
+                                goto out;
+
+                        tcp_hdr(skb)->check =
+                                ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
+                                                 &ipv6_hdr(skb)->daddr,
+                                                 skb->len - off,
+                                                 IPPROTO_TCP, 0);
                 }
                 break;
         case IPPROTO_UDP:
@@ -1323,25 +1366,20 @@ static int checksum_setup_ipv6(struct xenvif *vif, struct sk_buff *skb,
                         goto out;
 
                 if (recalculate_partial_csum) {
-                        struct udphdr *udph = udp_hdr(skb);
-
-                        header_size = skb->network_header +
-                                off +
-                                sizeof(struct udphdr);
-                        maybe_pull_tail(skb, header_size);
-
-                        udph->check = ~csum_ipv6_magic(&ipv6h->saddr,
-                                                       &ipv6h->daddr,
-                                                       skb->len - off,
-                                                       IPPROTO_UDP, 0);
+                        err = maybe_pull_tail(skb,
+                                              off + sizeof(struct udphdr),
+                                              MAX_IPV6_HDR_LEN);
+                        if (err < 0)
+                                goto out;
+
+                        udp_hdr(skb)->check =
+                                ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
+                                                 &ipv6_hdr(skb)->daddr,
+                                                 skb->len - off,
+                                                 IPPROTO_UDP, 0);
                 }
                 break;
         default:
-                if (net_ratelimit())
-                        netdev_err(vif->dev,
-                                   "Attempting to checksum a non-TCP/UDP packet, "
-                                   "dropping a protocol %d packet\n",
-                                   nexthdr);
                 goto out;
         }
 
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 5d89d1b808a6..c56c350324e4 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -4,6 +4,7 @@
 #include <uapi/linux/ipv6.h>
 
 #define ipv6_optlen(p)  (((p)->hdrlen+1) << 3)
+#define ipv6_authlen(p) (((p)->hdrlen+2) << 2)
 /*
  * This structure contains configuration options per IPv6 link.
  */
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index eb198acaac1d..488316e339a1 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -110,7 +110,8 @@ struct frag_hdr {
         __be32  identification;
 };
 
-#define IP6_MF  0x0001
+#define IP6_MF          0x0001
+#define IP6_OFFSET      0xFFF8
 
 #include <net/sock.h>
 
diff --git a/include/net/sock.h b/include/net/sock.h
index e3a18ff0c38b..2ef3c3eca47a 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1035,7 +1035,6 @@ enum cg_proto_flags {
 };
 
 struct cg_proto {
-        void                    (*enter_memory_pressure)(struct sock *sk);
         struct res_counter      memory_allocated;       /* Current allocated memory. */
         struct percpu_counter   sockets_allocated;      /* Current number of sockets. */
         int                     memory_pressure;
@@ -1155,8 +1154,7 @@ static inline void sk_leave_memory_pressure(struct sock *sk)
                 struct proto *prot = sk->sk_prot;
 
                 for (; cg_proto; cg_proto = parent_cg_proto(prot, cg_proto))
-                        if (cg_proto->memory_pressure)
-                                cg_proto->memory_pressure = 0;
+                        cg_proto->memory_pressure = 0;
         }
 
 }
@@ -1171,7 +1169,7 @@ static inline void sk_enter_memory_pressure(struct sock *sk)
                 struct proto *prot = sk->sk_prot;
 
                 for (; cg_proto; cg_proto = parent_cg_proto(prot, cg_proto))
-                        cg_proto->enter_memory_pressure(sk);
+                        cg_proto->memory_pressure = 1;
         }
 
         sk->sk_prot->enter_memory_pressure(sk);
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 229d820bdf0b..045d56eaeca2 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -426,6 +426,16 @@ netdev_features_t br_features_recompute(struct net_bridge *br,
 int br_handle_frame_finish(struct sk_buff *skb);
 rx_handler_result_t br_handle_frame(struct sk_buff **pskb);
 
+static inline bool br_rx_handler_check_rcu(const struct net_device *dev)
+{
+        return rcu_dereference(dev->rx_handler) == br_handle_frame;
+}
+
+static inline struct net_bridge_port *br_port_get_check_rcu(const struct net_device *dev)
+{
+        return br_rx_handler_check_rcu(dev) ? br_port_get_rcu(dev) : NULL;
+}
+
 /* br_ioctl.c */
 int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
 int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd,
diff --git a/net/bridge/br_stp_bpdu.c b/net/bridge/br_stp_bpdu.c
index 8660ea3be705..bdb459d21ad8 100644
--- a/net/bridge/br_stp_bpdu.c
+++ b/net/bridge/br_stp_bpdu.c
@@ -153,7 +153,7 @@ void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb,
         if (buf[0] != 0 || buf[1] != 0 || buf[2] != 0)
                 goto err;
 
-        p = br_port_get_rcu(dev);
+        p = br_port_get_check_rcu(dev);
         if (!p)
                 goto err;
 
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 2718fed53d8c..06e72d3cdf60 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3584,6 +3584,7 @@ void skb_scrub_packet(struct sk_buff *skb, bool xnet)
         skb->tstamp.tv64 = 0;
         skb->pkt_type = PACKET_HOST;
         skb->skb_iif = 0;
+        skb->local_df = 0;
         skb_dst_drop(skb);
         skb->mark = 0;
         secpath_reset(skb);
diff --git a/net/ipv4/tcp_memcontrol.c b/net/ipv4/tcp_memcontrol.c
index 269a89ecd2f4..f7e522c558ba 100644
--- a/net/ipv4/tcp_memcontrol.c
+++ b/net/ipv4/tcp_memcontrol.c
@@ -6,13 +6,6 @@
 #include <linux/memcontrol.h>
 #include <linux/module.h>
 
-static void memcg_tcp_enter_memory_pressure(struct sock *sk)
-{
-        if (sk->sk_cgrp->memory_pressure)
-                sk->sk_cgrp->memory_pressure = 1;
-}
-EXPORT_SYMBOL(memcg_tcp_enter_memory_pressure);
-
 int tcp_init_cgroup(struct mem_cgroup *memcg, struct cgroup_subsys *ss)
 {
         /*
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index c235da940019..e4171dd98590 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -237,6 +237,30 @@ struct packet_skb_cb {
 static void __fanout_unlink(struct sock *sk, struct packet_sock *po);
 static void __fanout_link(struct sock *sk, struct packet_sock *po);
 
+static struct net_device *packet_cached_dev_get(struct packet_sock *po)
+{
+        struct net_device *dev;
+
+        rcu_read_lock();
+        dev = rcu_dereference(po->cached_dev);
+        if (likely(dev))
+                dev_hold(dev);
+        rcu_read_unlock();
+
+        return dev;
+}
+
+static void packet_cached_dev_assign(struct packet_sock *po,
+                                     struct net_device *dev)
+{
+        rcu_assign_pointer(po->cached_dev, dev);
+}
+
+static void packet_cached_dev_reset(struct packet_sock *po)
+{
+        RCU_INIT_POINTER(po->cached_dev, NULL);
+}
+
 /* register_prot_hook must be invoked with the po->bind_lock held,
  * or from a context in which asynchronous accesses to the packet
  * socket is not possible (packet_create()).
@@ -246,12 +270,10 @@ static void register_prot_hook(struct sock *sk)
         struct packet_sock *po = pkt_sk(sk);
 
         if (!po->running) {
-                if (po->fanout) {
+                if (po->fanout)
                         __fanout_link(sk, po);
-                } else {
+                else
                         dev_add_pack(&po->prot_hook);
-                        rcu_assign_pointer(po->cached_dev, po->prot_hook.dev);
-                }
 
                 sock_hold(sk);
                 po->running = 1;
@@ -270,12 +292,11 @@ static void __unregister_prot_hook(struct sock *sk, bool sync)
         struct packet_sock *po = pkt_sk(sk);
 
         po->running = 0;
-        if (po->fanout) {
+
+        if (po->fanout)
                 __fanout_unlink(sk, po);
-        } else {
+        else
                 __dev_remove_pack(&po->prot_hook);
-                RCU_INIT_POINTER(po->cached_dev, NULL);
-        }
 
         __sock_put(sk);
 
@@ -2061,19 +2082,6 @@ static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff *skb,
         return tp_len;
 }
 
-static struct net_device *packet_cached_dev_get(struct packet_sock *po)
-{
-        struct net_device *dev;
-
-        rcu_read_lock();
-        dev = rcu_dereference(po->cached_dev);
-        if (dev)
-                dev_hold(dev);
-        rcu_read_unlock();
-
-        return dev;
-}
-
 static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
 {
         struct sk_buff *skb;
@@ -2090,7 +2098,7 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
 
         mutex_lock(&po->pg_vec_lock);
 
-        if (saddr == NULL) {
+        if (likely(saddr == NULL)) {
                 dev     = packet_cached_dev_get(po);
                 proto   = po->num;
                 addr    = NULL;
@@ -2244,7 +2252,7 @@ static int packet_snd(struct socket *sock,
          *      Get and verify the address.
          */
 
-        if (saddr == NULL) {
+        if (likely(saddr == NULL)) {
                 dev     = packet_cached_dev_get(po);
                 proto   = po->num;
                 addr    = NULL;
@@ -2453,6 +2461,8 @@ static int packet_release(struct socket *sock)
 
         spin_lock(&po->bind_lock);
         unregister_prot_hook(sk, false);
+        packet_cached_dev_reset(po);
+
         if (po->prot_hook.dev) {
                 dev_put(po->prot_hook.dev);
                 po->prot_hook.dev = NULL;
@@ -2508,14 +2518,17 @@ static int packet_do_bind(struct sock *sk, struct net_device *dev, __be16 protoc
 
         spin_lock(&po->bind_lock);
         unregister_prot_hook(sk, true);
+
         po->num = protocol;
         po->prot_hook.type = protocol;
         if (po->prot_hook.dev)
                 dev_put(po->prot_hook.dev);
-        po->prot_hook.dev = dev;
 
+        po->prot_hook.dev = dev;
         po->ifindex = dev ? dev->ifindex : 0;
 
+        packet_cached_dev_assign(po, dev);
+
         if (protocol == 0)
                 goto out_unlock;
 
@@ -2628,7 +2641,8 @@ static int packet_create(struct net *net, struct socket *sock, int protocol,
         po = pkt_sk(sk);
         sk->sk_family = PF_PACKET;
         po->num = proto;
-        RCU_INIT_POINTER(po->cached_dev, NULL);
+
+        packet_cached_dev_reset(po);
 
         sk->sk_destruct = packet_sock_destruct;
         sk_refcnt_debug_inc(sk);
@@ -3339,6 +3353,7 @@ static int packet_notifier(struct notifier_block *this,
                                                 sk->sk_error_report(sk);
                                 }
                                 if (msg == NETDEV_UNREGISTER) {
+                                        packet_cached_dev_reset(po);
                                         po->ifindex = -1;
                                         if (po->prot_hook.dev)
                                                 dev_put(po->prot_hook.dev);
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index fd7072827a40..69cb848e8345 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -270,6 +270,16 @@ int tcf_register_action(struct tc_action_ops *act)
 {
         struct tc_action_ops *a, **ap;
 
+        /* Must supply act, dump, cleanup and init */
+        if (!act->act || !act->dump || !act->cleanup || !act->init)
+                return -EINVAL;
+
+        /* Supply defaults */
+        if (!act->lookup)
+                act->lookup = tcf_hash_search;
+        if (!act->walk)
+                act->walk = tcf_generic_walker;
+
         write_lock(&act_mod_lock);
         for (ap = &act_base; (a = *ap) != NULL; ap = &a->next) {
                 if (act->type == a->type || (strcmp(act->kind, a->kind) == 0)) {
@@ -381,7 +391,7 @@ int tcf_action_exec(struct sk_buff *skb, const struct tc_action *act,
         }
         while ((a = act) != NULL) {
 repeat:
-                if (a->ops && a->ops->act) {
+                if (a->ops) {
                         ret = a->ops->act(skb, a, res);
                         if (TC_MUNGED & skb->tc_verd) {
                                 /* copied already, allow trampling */
@@ -405,7 +415,7 @@ void tcf_action_destroy(struct tc_action *act, int bind)
         struct tc_action *a;
 
         for (a = act; a; a = act) {
-                if (a->ops && a->ops->cleanup) {
+                if (a->ops) {
                         if (a->ops->cleanup(a, bind) == ACT_P_DELETED)
                                 module_put(a->ops->owner);
                         act = act->next;
@@ -424,7 +434,7 @@ tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int bind, int ref)
 {
         int err = -EINVAL;
 
-        if (a->ops == NULL || a->ops->dump == NULL)
+        if (a->ops == NULL)
                 return err;
         return a->ops->dump(skb, a, bind, ref);
 }
@@ -436,7 +446,7 @@ tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int bind, int ref)
         unsigned char *b = skb_tail_pointer(skb);
         struct nlattr *nest;
 
-        if (a->ops == NULL || a->ops->dump == NULL)
+        if (a->ops == NULL)
                 return err;
 
         if (nla_put_string(skb, TCA_KIND, a->ops->kind))
@@ -723,8 +733,6 @@ tcf_action_get_1(struct nlattr *nla, struct nlmsghdr *n, u32 portid)
         a->ops = tc_lookup_action(tb[TCA_ACT_KIND]);
         if (a->ops == NULL)
                 goto err_free;
-        if (a->ops->lookup == NULL)
-                goto err_mod;
         err = -ENOENT;
         if (a->ops->lookup(a, index) == 0)
                 goto err_mod;
@@ -1084,12 +1092,6 @@ tc_dump_action(struct sk_buff *skb, struct netlink_callback *cb)
         memset(&a, 0, sizeof(struct tc_action));
         a.ops = a_o;
 
-        if (a_o->walk == NULL) {
-                WARN(1, "tc_dump_action: %s !capable of dumping table\n",
-                     a_o->kind);
-                goto out_module_put;
-        }
-
         nlh = nlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
                         cb->nlh->nlmsg_type, sizeof(*t), 0);
         if (!nlh)
diff --git a/net/sched/act_csum.c b/net/sched/act_csum.c
index 3a4c0caa1f7d..5c5edf56adbd 100644
--- a/net/sched/act_csum.c
+++ b/net/sched/act_csum.c
@@ -585,9 +585,7 @@ static struct tc_action_ops act_csum_ops = {
         .act            = tcf_csum,
         .dump           = tcf_csum_dump,
         .cleanup        = tcf_csum_cleanup,
-        .lookup         = tcf_hash_search,
         .init           = tcf_csum_init,
-        .walk           = tcf_generic_walker
 };
 
 MODULE_DESCRIPTION("Checksum updating actions");
diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c
index fd2b3cff5fa2..5645a4d32abd 100644
--- a/net/sched/act_gact.c
+++ b/net/sched/act_gact.c
@@ -206,9 +206,7 @@ static struct tc_action_ops act_gact_ops = {
         .act            =       tcf_gact,
         .dump           =       tcf_gact_dump,
         .cleanup        =       tcf_gact_cleanup,
-        .lookup         =       tcf_hash_search,
         .init           =       tcf_gact_init,
-        .walk           =       tcf_generic_walker
 };
 
 MODULE_AUTHOR("Jamal Hadi Salim(2002-4)");
diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c
index 60d88b6b9560..882a89762f77 100644
--- a/net/sched/act_ipt.c
+++ b/net/sched/act_ipt.c
@@ -298,9 +298,7 @@ static struct tc_action_ops act_ipt_ops = {
         .act            =       tcf_ipt,
         .dump           =       tcf_ipt_dump,
         .cleanup        =       tcf_ipt_cleanup,
-        .lookup         =       tcf_hash_search,
         .init           =       tcf_ipt_init,
-        .walk           =       tcf_generic_walker
 };
 
 static struct tc_action_ops act_xt_ops = {
@@ -312,9 +310,7 @@ static struct tc_action_ops act_xt_ops = {
         .act            =       tcf_ipt,
         .dump           =       tcf_ipt_dump,
         .cleanup        =       tcf_ipt_cleanup,
-        .lookup         =       tcf_hash_search,
         .init           =       tcf_ipt_init,
-        .walk           =       tcf_generic_walker
 };
 
 MODULE_AUTHOR("Jamal Hadi Salim(2002-13)");
diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
index 977c10e0631b..252378121ce7 100644
--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -271,9 +271,7 @@ static struct tc_action_ops act_mirred_ops = {
         .act            =       tcf_mirred,
         .dump           =       tcf_mirred_dump,
         .cleanup        =       tcf_mirred_cleanup,
-        .lookup         =       tcf_hash_search,
         .init           =       tcf_mirred_init,
-        .walk           =       tcf_generic_walker
 };
 
 MODULE_AUTHOR("Jamal Hadi Salim(2002)");
diff --git a/net/sched/act_nat.c b/net/sched/act_nat.c
index 876f0ef29694..6a15ace00241 100644
--- a/net/sched/act_nat.c
+++ b/net/sched/act_nat.c
@@ -308,9 +308,7 @@ static struct tc_action_ops act_nat_ops = {
         .act            =       tcf_nat,
         .dump           =       tcf_nat_dump,
         .cleanup        =       tcf_nat_cleanup,
-        .lookup         =       tcf_hash_search,
         .init           =       tcf_nat_init,
-        .walk           =       tcf_generic_walker
 };
 
 MODULE_DESCRIPTION("Stateless NAT actions");
diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
index 7ed78c9e505c..03b67674169c 100644
--- a/net/sched/act_pedit.c
+++ b/net/sched/act_pedit.c
@@ -243,9 +243,7 @@ static struct tc_action_ops act_pedit_ops = {
         .act            =       tcf_pedit,
         .dump           =       tcf_pedit_dump,
         .cleanup        =       tcf_pedit_cleanup,
-        .lookup         =       tcf_hash_search,
         .init           =       tcf_pedit_init,
-        .walk           =       tcf_generic_walker
 };
 
 MODULE_AUTHOR("Jamal Hadi Salim(2002-4)");
diff --git a/net/sched/act_police.c b/net/sched/act_police.c
index 272d8e924cf6..16a62c36928a 100644
--- a/net/sched/act_police.c
+++ b/net/sched/act_police.c
@@ -407,7 +407,6 @@ static struct tc_action_ops act_police_ops = {
         .act            =       tcf_act_police,
         .dump           =       tcf_act_police_dump,
         .cleanup        =       tcf_act_police_cleanup,
-        .lookup         =       tcf_hash_search,
         .init           =       tcf_act_police_locate,
         .walk           =       tcf_act_police_walker
 };
diff --git a/net/sched/act_simple.c b/net/sched/act_simple.c
index 7725eb4ab756..31157d3e729c 100644
--- a/net/sched/act_simple.c
+++ b/net/sched/act_simple.c
@@ -201,7 +201,6 @@ static struct tc_action_ops act_simp_ops = {
         .dump           =       tcf_simp_dump,
         .cleanup        =       tcf_simp_cleanup,
         .init           =       tcf_simp_init,
-        .walk           =       tcf_generic_walker,
 };
 
 MODULE_AUTHOR("Jamal Hadi Salim(2005)");
diff --git a/net/sched/act_skbedit.c b/net/sched/act_skbedit.c
index 9119b73527c9..cf20add1c3ff 100644
--- a/net/sched/act_skbedit.c
+++ b/net/sched/act_skbedit.c
@@ -202,7 +202,6 @@ static struct tc_action_ops act_skbedit_ops = {
         .dump           =       tcf_skbedit_dump,
         .cleanup        =       tcf_skbedit_cleanup,
         .init           =       tcf_skbedit_init,
-        .walk           =       tcf_generic_walker,
 };
 
 MODULE_AUTHOR("Alexander Duyck, <alexander.h.duyck@intel.com>");
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index 1d4f3ac29baf..d0810dc5f079 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -572,7 +572,7 @@ void sctp_transport_burst_limited(struct sctp_transport *t)
         u32 old_cwnd = t->cwnd;
         u32 max_burst_bytes;
 
-        if (t->burst_limited)
+        if (t->burst_limited || asoc->max_burst == 0)
                 return;
 
         max_burst_bytes = t->flight_size + (asoc->max_burst * asoc->pathmtu);