Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

5 files changed, 133 insertions, 13 deletions

diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index fc5938ba3d78..a527e37728cd 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -88,6 +88,11 @@ config LSI_ET1011C_PHY
 	---help---
 	  Supports the LSI ET1011C PHY.
 
+config MICREL_PHY
+	tristate "Driver for Micrel PHYs"
+	---help---
+	  Supports the KSZ9021, VSC8201, KS8001 PHYs.
+
 config FIXED_PHY
 	bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
 	depends on PHYLIB=y
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index 1342585af381..13bebab65d02 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -20,4 +20,5 @@ obj-$(CONFIG_MDIO_BITBANG)	+= mdio-bitbang.o
 obj-$(CONFIG_MDIO_GPIO)		+= mdio-gpio.o
 obj-$(CONFIG_NATIONAL_PHY)	+= national.o
 obj-$(CONFIG_STE10XP)		+= ste10Xp.o
+obj-$(CONFIG_MICREL_PHY)	+= micrel.o
 obj-$(CONFIG_MDIO_OCTEON)	+= mdio-octeon.o
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
new file mode 100644
index 000000000000..0cd80e4d71d9
--- /dev/null
+++ b/drivers/net/phy/micrel.c
@@ -0,0 +1,104 @@
+/*
+ * drivers/net/phy/micrel.c
+ *
+ * Driver for Micrel PHYs
+ *
+ * Author: David J. Choi
+ *
+ * Copyright (c) 2010 Micrel, Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ * Support : ksz9021 , vsc8201, ks8001
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/phy.h>
+
+#define	PHY_ID_KSZ9021			0x00221611
+#define	PHY_ID_VSC8201			0x000FC413
+#define	PHY_ID_KS8001			0x0022161A
+
+
+static int kszphy_config_init(struct phy_device *phydev)
+{
+	return 0;
+}
+
+
+static struct phy_driver ks8001_driver = {
+	.phy_id		= PHY_ID_KS8001,
+	.phy_id_mask	= 0x00fffff0,
+	.features	= PHY_BASIC_FEATURES,
+	.flags		= PHY_POLL,
+	.config_init	= kszphy_config_init,
+	.config_aneg	= genphy_config_aneg,
+	.read_status	= genphy_read_status,
+	.driver		= { .owner = THIS_MODULE,},
+};
+
+static struct phy_driver vsc8201_driver = {
+	.phy_id		= PHY_ID_VSC8201,
+	.name		= "Micrel VSC8201",
+	.phy_id_mask	= 0x00fffff0,
+	.features	= PHY_BASIC_FEATURES,
+	.flags		= PHY_POLL,
+	.config_init	= kszphy_config_init,
+	.config_aneg	= genphy_config_aneg,
+	.read_status	= genphy_read_status,
+	.driver		= { .owner = THIS_MODULE,},
+};
+
+static struct phy_driver ksz9021_driver = {
+	.phy_id		= PHY_ID_KSZ9021,
+	.phy_id_mask	= 0x000fff10,
+	.name		= "Micrel KSZ9021 Gigabit PHY",
+	.features	= PHY_GBIT_FEATURES | SUPPORTED_Pause,
+	.flags		= PHY_POLL,
+	.config_init	= kszphy_config_init,
+	.config_aneg	= genphy_config_aneg,
+	.read_status	= genphy_read_status,
+	.driver		= { .owner = THIS_MODULE, },
+};
+
+static int __init ksphy_init(void)
+{
+	int ret;
+
+	ret = phy_driver_register(&ks8001_driver);
+	if (ret)
+		goto err1;
+	ret = phy_driver_register(&vsc8201_driver);
+	if (ret)
+		goto err2;
+
+	ret = phy_driver_register(&ksz9021_driver);
+	if (ret)
+		goto err3;
+	return 0;
+
+err3:
+	phy_driver_unregister(&vsc8201_driver);
+err2:
+	phy_driver_unregister(&ks8001_driver);
+err1:
+	return ret;
+}
+
+static void __exit ksphy_exit(void)
+{
+	phy_driver_unregister(&ks8001_driver);
+	phy_driver_unregister(&vsc8201_driver);
+	phy_driver_unregister(&ksz9021_driver);
+}
+
+module_init(ksphy_init);
+module_exit(ksphy_exit);
+
+MODULE_DESCRIPTION("Micrel PHY driver");
+MODULE_AUTHOR("David J. Choi");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c
index 35f195329fdd..5441688daba7 100644
--- a/drivers/net/ppp_generic.c
+++ b/drivers/net/ppp_generic.c
@@ -405,6 +405,7 @@ static ssize_t ppp_read(struct file *file, char __user *buf,
 	DECLARE_WAITQUEUE(wait, current);
 	ssize_t ret;
 	struct sk_buff *skb = NULL;
+	struct iovec iov;
 
 	ret = count;
 
@@ -448,7 +449,9 @@ static ssize_t ppp_read(struct file *file, char __user *buf,
 	if (skb->len > count)
 		goto outf;
 	ret = -EFAULT;
-	if (copy_to_user(buf, skb->data, skb->len))
+	iov.iov_base = buf;
+	iov.iov_len = count;
+	if (skb_copy_datagram_iovec(skb, 0, &iov, skb->len))
 		goto outf;
 	ret = skb->len;
 
@@ -1567,13 +1570,22 @@ ppp_input(struct ppp_channel *chan, struct sk_buff *skb)
 	struct channel *pch = chan->ppp;
 	int proto;
 
-	if (!pch || skb->len == 0) {
+	if (!pch) {
 		kfree_skb(skb);
 		return;
 	}
 
-	proto = PPP_PROTO(skb);
 	read_lock_bh(&pch->upl);
+	if (!pskb_may_pull(skb, 2)) {
+		kfree_skb(skb);
+		if (pch->ppp) {
+			++pch->ppp->dev->stats.rx_length_errors;
+			ppp_receive_error(pch->ppp);
+		}
+		goto done;
+	}
+
+	proto = PPP_PROTO(skb);
 	if (!pch->ppp || proto >= 0xc000 || proto == PPP_CCPFRAG) {
 		/* put it on the channel queue */
 		skb_queue_tail(&pch->file.rq, skb);
@@ -1585,6 +1597,8 @@ ppp_input(struct ppp_channel *chan, struct sk_buff *skb)
 	} else {
 		ppp_do_recv(pch->ppp, skb, pch);
 	}
+
+done:
 	read_unlock_bh(&pch->upl);
 }
 
@@ -1617,7 +1631,8 @@ ppp_input_error(struct ppp_channel *chan, int code)
 static void
 ppp_receive_frame(struct ppp *ppp, struct sk_buff *skb, struct channel *pch)
 {
-	if (pskb_may_pull(skb, 2)) {
+	/* note: a 0-length skb is used as an error indication */
+	if (skb->len > 0) {
 #ifdef CONFIG_PPP_MULTILINK
 		/* XXX do channel-level decompression here */
 		if (PPP_PROTO(skb) == PPP_MP)
@@ -1625,15 +1640,10 @@ ppp_receive_frame(struct ppp *ppp, struct sk_buff *skb, struct channel *pch)
 		else
 #endif /* CONFIG_PPP_MULTILINK */
 			ppp_receive_nonmp_frame(ppp, skb);
-		return;
+	} else {
+		kfree_skb(skb);
+		ppp_receive_error(ppp);
 	}
-
-	if (skb->len > 0)
-		/* note: a 0-length skb is used as an error indication */
-		++ppp->dev->stats.rx_length_errors;
-
-	kfree_skb(skb);
-	ppp_receive_error(ppp);
 }
 
 static void
diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c
index 291add255246..47634b617107 100644
--- a/drivers/net/usb/dm9601.c
+++ b/drivers/net/usb/dm9601.c
@@ -240,7 +240,7 @@ static int dm_write_shared_word(struct usbnet *dev, int phy, u8 reg, __le16 valu
 		goto out;
 
 	dm_write_reg(dev, DM_SHARED_ADDR, phy ? (reg | 0x40) : reg);
-	dm_write_reg(dev, DM_SHARED_CTRL, phy ? 0x1c : 0x14);
+	dm_write_reg(dev, DM_SHARED_CTRL, phy ? 0x1a : 0x12);
 
 	for (i = 0; i < DM_TIMEOUT; i++) {
 		u8 tmp;