Merge 4.6-rc7 into tty-next

We want the pty fixes in here as well so that patches can build on it.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

4 files changed, 65 insertions, 13 deletions

diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index f20890ee03f3..f64778ad9753 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -269,6 +269,7 @@ struct skb_data {		/* skb->cb is one of these */
         struct lan78xx_net *dev;
         enum skb_state state;
         size_t length;
+        int num_of_packet;
 };
 
 struct usb_context {
@@ -1803,7 +1804,34 @@ static void lan78xx_remove_mdio(struct lan78xx_net *dev)
 
 static void lan78xx_link_status_change(struct net_device *net)
 {
-        /* nothing to do */
+        struct phy_device *phydev = net->phydev;
+        int ret, temp;
+
+        /* At forced 100 F/H mode, chip may fail to set mode correctly
+         * when cable is switched between long(~50+m) and short one.
+         * As workaround, set to 10 before setting to 100
+         * at forced 100 F/H mode.
+         */
+        if (!phydev->autoneg && (phydev->speed == 100)) {
+                /* disable phy interrupt */
+                temp = phy_read(phydev, LAN88XX_INT_MASK);
+                temp &= ~LAN88XX_INT_MASK_MDINTPIN_EN_;
+                ret = phy_write(phydev, LAN88XX_INT_MASK, temp);
+
+                temp = phy_read(phydev, MII_BMCR);
+                temp &= ~(BMCR_SPEED100 | BMCR_SPEED1000);
+                phy_write(phydev, MII_BMCR, temp); /* set to 10 first */
+                temp |= BMCR_SPEED100;
+                phy_write(phydev, MII_BMCR, temp); /* set to 100 later */
+
+                /* clear pending interrupt generated while workaround */
+                temp = phy_read(phydev, LAN88XX_INT_STS);
+
+                /* enable phy interrupt back */
+                temp = phy_read(phydev, LAN88XX_INT_MASK);
+                temp |= LAN88XX_INT_MASK_MDINTPIN_EN_;
+                ret = phy_write(phydev, LAN88XX_INT_MASK, temp);
+        }
 }
 
 static int lan78xx_phy_init(struct lan78xx_net *dev)
@@ -2464,7 +2492,7 @@ static void tx_complete(struct urb *urb)
         struct lan78xx_net *dev = entry->dev;
 
         if (urb->status == 0) {
-                dev->net->stats.tx_packets++;
+                dev->net->stats.tx_packets += entry->num_of_packet;
                 dev->net->stats.tx_bytes += entry->length;
         } else {
                 dev->net->stats.tx_errors++;
@@ -2681,10 +2709,11 @@ void lan78xx_skb_return(struct lan78xx_net *dev, struct sk_buff *skb)
                 return;
         }
 
-        skb->protocol = eth_type_trans(skb, dev->net);
         dev->net->stats.rx_packets++;
         dev->net->stats.rx_bytes += skb->len;
 
+        skb->protocol = eth_type_trans(skb, dev->net);
+
         netif_dbg(dev, rx_status, dev->net, "< rx, len %zu, type 0x%x\n",
                   skb->len + sizeof(struct ethhdr), skb->protocol);
         memset(skb->cb, 0, sizeof(struct skb_data));
@@ -2934,13 +2963,16 @@ static void lan78xx_tx_bh(struct lan78xx_net *dev)
 
         skb_totallen = 0;
         pkt_cnt = 0;
+        count = 0;
+        length = 0;
         for (skb = tqp->next; pkt_cnt < tqp->qlen; skb = skb->next) {
                 if (skb_is_gso(skb)) {
                         if (pkt_cnt) {
                                 /* handle previous packets first */
                                 break;
                         }
-                        length = skb->len;
+                        count = 1;
+                        length = skb->len - TX_OVERHEAD;
                         skb2 = skb_dequeue(tqp);
                         goto gso_skb;
                 }
@@ -2961,14 +2993,13 @@ static void lan78xx_tx_bh(struct lan78xx_net *dev)
         for (count = pos = 0; count < pkt_cnt; count++) {
                 skb2 = skb_dequeue(tqp);
                 if (skb2) {
+                        length += (skb2->len - TX_OVERHEAD);
                         memcpy(skb->data + pos, skb2->data, skb2->len);
                         pos += roundup(skb2->len, sizeof(u32));
                         dev_kfree_skb(skb2);
                 }
         }
 
-        length = skb_totallen;
-
 gso_skb:
         urb = usb_alloc_urb(0, GFP_ATOMIC);
         if (!urb) {
@@ -2980,6 +3011,7 @@ gso_skb:
         entry->urb = urb;
         entry->dev = dev;
         entry->length = length;
+        entry->num_of_packet = count;
 
         spin_lock_irqsave(&dev->txq.lock, flags);
         ret = usb_autopm_get_interface_async(dev->intf);
diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index f84080215915..82129eef7774 100644
--- a/drivers/net/usb/pegasus.c
+++ b/drivers/net/usb/pegasus.c
@@ -411,7 +411,7 @@ static int enable_net_traffic(struct net_device *dev, struct usb_device *usb)
         int ret;
 
         read_mii_word(pegasus, pegasus->phy, MII_LPA, &linkpart);
-        data[0] = 0xc9;
+        data[0] = 0xc8; /* TX & RX enable, append status, no CRC */
         data[1] = 0;
         if (linkpart & (ADVERTISE_100FULL | ADVERTISE_10FULL))
                 data[1] |= 0x20;        /* set full duplex */
@@ -497,7 +497,7 @@ static void read_bulk_callback(struct urb *urb)
                 pkt_len = buf[count - 3] << 8;
                 pkt_len += buf[count - 4];
                 pkt_len &= 0xfff;
-                pkt_len -= 8;
+                pkt_len -= 4;
         }
 
         /*
@@ -528,7 +528,7 @@ static void read_bulk_callback(struct urb *urb)
 goon:
         usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
                           usb_rcvbulkpipe(pegasus->usb, 1),
-                          pegasus->rx_skb->data, PEGASUS_MTU + 8,
+                          pegasus->rx_skb->data, PEGASUS_MTU,
                           read_bulk_callback, pegasus);
         rx_status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC);
         if (rx_status == -ENODEV)
@@ -569,7 +569,7 @@ static void rx_fixup(unsigned long data)
         }
         usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
                           usb_rcvbulkpipe(pegasus->usb, 1),
-                          pegasus->rx_skb->data, PEGASUS_MTU + 8,
+                          pegasus->rx_skb->data, PEGASUS_MTU,
                           read_bulk_callback, pegasus);
 try_again:
         status = usb_submit_urb(pegasus->rx_urb, GFP_ATOMIC);
@@ -823,7 +823,7 @@ static int pegasus_open(struct net_device *net)
 
         usb_fill_bulk_urb(pegasus->rx_urb, pegasus->usb,
                           usb_rcvbulkpipe(pegasus->usb, 1),
-                          pegasus->rx_skb->data, PEGASUS_MTU + 8,
+                          pegasus->rx_skb->data, PEGASUS_MTU,
                           read_bulk_callback, pegasus);
         if ((res = usb_submit_urb(pegasus->rx_urb, GFP_KERNEL))) {
                 if (res == -ENODEV)
diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c
index 30033dbe6662..c369db99c005 100644
--- a/drivers/net/usb/smsc75xx.c
+++ b/drivers/net/usb/smsc75xx.c
@@ -29,6 +29,7 @@
 #include <linux/crc32.h>
 #include <linux/usb/usbnet.h>
 #include <linux/slab.h>
+#include <linux/of_net.h>
 #include "smsc75xx.h"
 
 #define SMSC_CHIPNAME                   "smsc75xx"
@@ -761,6 +762,15 @@ static int smsc75xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
 
 static void smsc75xx_init_mac_address(struct usbnet *dev)
 {
+        const u8 *mac_addr;
+
+        /* maybe the boot loader passed the MAC address in devicetree */
+        mac_addr = of_get_mac_address(dev->udev->dev.of_node);
+        if (mac_addr) {
+                memcpy(dev->net->dev_addr, mac_addr, ETH_ALEN);
+                return;
+        }
+
         /* try reading mac address from EEPROM */
         if (smsc75xx_read_eeprom(dev, EEPROM_MAC_OFFSET, ETH_ALEN,
                         dev->net->dev_addr) == 0) {
@@ -772,7 +782,7 @@ static void smsc75xx_init_mac_address(struct usbnet *dev)
                 }
         }
 
-        /* no eeprom, or eeprom values are invalid. generate random MAC */
+        /* no useful static MAC address found. generate a random one */
         eth_hw_addr_random(dev->net);
         netif_dbg(dev, ifup, dev->net, "MAC address set to eth_random_addr\n");
 }
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index 66b3ab9f614e..2edc2bc6d1b9 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -29,6 +29,7 @@
 #include <linux/crc32.h>
 #include <linux/usb/usbnet.h>
 #include <linux/slab.h>
+#include <linux/of_net.h>
 #include "smsc95xx.h"
 
 #define SMSC_CHIPNAME                   "smsc95xx"
@@ -765,6 +766,15 @@ static int smsc95xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
 
 static void smsc95xx_init_mac_address(struct usbnet *dev)
 {
+        const u8 *mac_addr;
+
+        /* maybe the boot loader passed the MAC address in devicetree */
+        mac_addr = of_get_mac_address(dev->udev->dev.of_node);
+        if (mac_addr) {
+                memcpy(dev->net->dev_addr, mac_addr, ETH_ALEN);
+                return;
+        }
+
         /* try reading mac address from EEPROM */
         if (smsc95xx_read_eeprom(dev, EEPROM_MAC_OFFSET, ETH_ALEN,
                         dev->net->dev_addr) == 0) {
@@ -775,7 +785,7 @@ static void smsc95xx_init_mac_address(struct usbnet *dev)
                 }
         }
 
-        /* no eeprom, or eeprom values are invalid. generate random MAC */
+        /* no useful static MAC address found. generate a random one */
         eth_hw_addr_random(dev->net);
         netif_dbg(dev, ifup, dev->net, "MAC address set to eth_random_addr\n");
 }