[git patches] net driver fixes

From: Jeff Garzik
Date: Thu Oct 16 2008 - 06:03:22 EST


Please pull from 'davem-fixes' branch of
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6.git davem-fixes

to receive the following updates:

drivers/net/Kconfig | 12 ++++++++++--
drivers/net/ixgbe/ixgbe.h | 4 ++--
drivers/net/ixgbe/ixgbe_main.c | 32 ++++++++++++++++----------------
drivers/net/myri10ge/myri10ge.c | 26 +++++++++++++-------------
drivers/net/pcmcia/Kconfig | 2 +-
drivers/net/wan/lmc/lmc_main.c | 31 ++++++++++++++++++++++++-------
drivers/net/xen-netfront.c | 5 ++++-
7 files changed, 70 insertions(+), 42 deletions(-)

Alan Cox (2):
lmc: copy_*_user under spinlock
[netdrvr] ibmtr: PCMCIA IBMTR is ok on 64bit

Isaku Yamahata (1):
xen-netfront: Avoid unaligned accesses to IP header

Jeff Garzik (1):
[netdrvr] myri10ge, ixgbe: remove broken select INTEL_IOATDMA

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 1d8af33..ad301ac 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2410,7 +2410,6 @@ config IXGBE
tristate "Intel(R) 10GbE PCI Express adapters support"
depends on PCI && INET
select INET_LRO
- select INTEL_IOATDMA
---help---
This driver supports Intel(R) 10GbE PCI Express family of
adapters. For more information on how to identify your adapter, go
@@ -2426,6 +2425,11 @@ config IXGBE
To compile this driver as a module, choose M here. The module
will be called ixgbe.

+config IXGBE_DCA
+ bool
+ default y
+ depends on IXGBE && DCA && !(IXGBE=y && DCA=m)
+
config IXGB
tristate "Intel(R) PRO/10GbE support"
depends on PCI
@@ -2462,7 +2466,6 @@ config MYRI10GE
select FW_LOADER
select CRC32
select INET_LRO
- select INTEL_IOATDMA
---help---
This driver supports Myricom Myri-10G Dual Protocol interface in
Ethernet mode. If the eeprom on your board is not recent enough,
@@ -2474,6 +2477,11 @@ config MYRI10GE
To compile this driver as a module, choose M here. The module
will be called myri10ge.

+config MYRI10GE_DCA
+ bool
+ default y
+ depends on MYRI10GE && DCA && !(MYRI10GE=y && DCA=m)
+
config NETXEN_NIC
tristate "NetXen Multi port (1/10) Gigabit Ethernet NIC"
depends on PCI
diff --git a/drivers/net/ixgbe/ixgbe.h b/drivers/net/ixgbe/ixgbe.h
index 2198b77..e116d34 100644
--- a/drivers/net/ixgbe/ixgbe.h
+++ b/drivers/net/ixgbe/ixgbe.h
@@ -36,7 +36,7 @@
#include "ixgbe_type.h"
#include "ixgbe_common.h"

-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
+#ifdef CONFIG_IXGBE_DCA
#include <linux/dca.h>
#endif

@@ -136,7 +136,7 @@ struct ixgbe_ring {
* offset associated with this ring, which is different
* for DCE and RSS modes */

-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
+#ifdef CONFIG_IXGBE_DCA
/* cpu for tx queue */
int cpu;
#endif
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index ca17af4..7548fb7 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -80,7 +80,7 @@ static struct pci_device_id ixgbe_pci_tbl[] = {
};
MODULE_DEVICE_TABLE(pci, ixgbe_pci_tbl);

-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
+#ifdef CONFIG_IXGBE_DCA
static int ixgbe_notify_dca(struct notifier_block *, unsigned long event,
void *p);
static struct notifier_block dca_notifier = {
@@ -296,7 +296,7 @@ done_cleaning:
return (total_packets ? true : false);
}

-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
+#ifdef CONFIG_IXGBE_DCA
static void ixgbe_update_rx_dca(struct ixgbe_adapter *adapter,
struct ixgbe_ring *rx_ring)
{
@@ -383,7 +383,7 @@ static int __ixgbe_notify_dca(struct device *dev, void *data)
return 0;
}

-#endif /* CONFIG_DCA or CONFIG_DCA_MODULE */
+#endif /* CONFIG_IXGBE_DCA */
/**
* ixgbe_receive_skb - Send a completed packet up the stack
* @adapter: board private structure
@@ -947,7 +947,7 @@ static irqreturn_t ixgbe_msix_clean_tx(int irq, void *data)
r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues);
for (i = 0; i < q_vector->txr_count; i++) {
tx_ring = &(adapter->tx_ring[r_idx]);
-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
+#ifdef CONFIG_IXGBE_DCA
if (adapter->flags & IXGBE_FLAG_DCA_ENABLED)
ixgbe_update_tx_dca(adapter, tx_ring);
#endif
@@ -1022,7 +1022,7 @@ static int ixgbe_clean_rxonly(struct napi_struct *napi, int budget)

r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues);
rx_ring = &(adapter->rx_ring[r_idx]);
-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
+#ifdef CONFIG_IXGBE_DCA
if (adapter->flags & IXGBE_FLAG_DCA_ENABLED)
ixgbe_update_rx_dca(adapter, rx_ring);
#endif
@@ -1066,7 +1066,7 @@ static int ixgbe_clean_rxonly_many(struct napi_struct *napi, int budget)
r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues);
for (i = 0; i < q_vector->rxr_count; i++) {
rx_ring = &(adapter->rx_ring[r_idx]);
-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
+#ifdef CONFIG_IXGBE_DCA
if (adapter->flags & IXGBE_FLAG_DCA_ENABLED)
ixgbe_update_rx_dca(adapter, rx_ring);
#endif
@@ -2155,7 +2155,7 @@ void ixgbe_down(struct ixgbe_adapter *adapter)

netif_carrier_off(netdev);

-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
+#ifdef CONFIG_IXGBE_DCA
if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) {
adapter->flags &= ~IXGBE_FLAG_DCA_ENABLED;
dca_remove_requester(&adapter->pdev->dev);
@@ -2167,7 +2167,7 @@ void ixgbe_down(struct ixgbe_adapter *adapter)
ixgbe_clean_all_tx_rings(adapter);
ixgbe_clean_all_rx_rings(adapter);

-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
+#ifdef CONFIG_IXGBE_DCA
/* since we reset the hardware DCA settings were cleared */
if (dca_add_requester(&adapter->pdev->dev) == 0) {
adapter->flags |= IXGBE_FLAG_DCA_ENABLED;
@@ -2193,7 +2193,7 @@ static int ixgbe_poll(struct napi_struct *napi, int budget)
struct ixgbe_adapter *adapter = q_vector->adapter;
int tx_cleaned, work_done = 0;

-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
+#ifdef CONFIG_IXGBE_DCA
if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) {
ixgbe_update_tx_dca(adapter, adapter->tx_ring);
ixgbe_update_rx_dca(adapter, adapter->rx_ring);
@@ -3922,7 +3922,7 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
if (err)
goto err_register;

-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
+#ifdef CONFIG_IXGBE_DCA
if (dca_add_requester(&pdev->dev) == 0) {
adapter->flags |= IXGBE_FLAG_DCA_ENABLED;
/* always use CB2 mode, difference is masked
@@ -3972,7 +3972,7 @@ static void __devexit ixgbe_remove(struct pci_dev *pdev)

flush_scheduled_work();

-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
+#ifdef CONFIG_IXGBE_DCA
if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) {
adapter->flags &= ~IXGBE_FLAG_DCA_ENABLED;
dca_remove_requester(&pdev->dev);
@@ -4105,10 +4105,10 @@ static int __init ixgbe_init_module(void)

printk(KERN_INFO "%s: %s\n", ixgbe_driver_name, ixgbe_copyright);

-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
+#ifdef CONFIG_IXGBE_DCA
dca_register_notify(&dca_notifier);
-
#endif
+
ret = pci_register_driver(&ixgbe_driver);
return ret;
}
@@ -4123,13 +4123,13 @@ module_init(ixgbe_init_module);
**/
static void __exit ixgbe_exit_module(void)
{
-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
+#ifdef CONFIG_IXGBE_DCA
dca_unregister_notify(&dca_notifier);
#endif
pci_unregister_driver(&ixgbe_driver);
}

-#if defined(CONFIG_DCA) || defined(CONFIG_DCA_MODULE)
+#ifdef CONFIG_IXGBE_DCA
static int ixgbe_notify_dca(struct notifier_block *nb, unsigned long event,
void *p)
{
@@ -4140,7 +4140,7 @@ static int ixgbe_notify_dca(struct notifier_block *nb, unsigned long event,

return ret_val ? NOTIFY_BAD : NOTIFY_DONE;
}
-#endif /* CONFIG_DCA or CONFIG_DCA_MODULE */
+#endif /* CONFIG_IXGBE_DCA */

module_exit(ixgbe_exit_module);

diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index 6dce901..a9aebad 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -188,7 +188,7 @@ struct myri10ge_slice_state {
dma_addr_t fw_stats_bus;
int watchdog_tx_done;
int watchdog_tx_req;
-#if (defined CONFIG_DCA) || (defined CONFIG_DCA_MODULE)
+#ifdef CONFIG_MYRI10GE_DCA
int cached_dca_tag;
int cpu;
__be32 __iomem *dca_tag;
@@ -220,7 +220,7 @@ struct myri10ge_priv {
int msi_enabled;
int msix_enabled;
struct msix_entry *msix_vectors;
-#if (defined CONFIG_DCA) || (defined CONFIG_DCA_MODULE)
+#ifdef CONFIG_MYRI10GE_DCA
int dca_enabled;
#endif
u32 link_state;
@@ -902,7 +902,7 @@ static int myri10ge_reset(struct myri10ge_priv *mgp)
struct myri10ge_slice_state *ss;
int i, status;
size_t bytes;
-#if (defined CONFIG_DCA) || (defined CONFIG_DCA_MODULE)
+#ifdef CONFIG_MYRI10GE_DCA
unsigned long dca_tag_off;
#endif

@@ -1012,7 +1012,7 @@ static int myri10ge_reset(struct myri10ge_priv *mgp)
}
put_be32(htonl(mgp->intr_coal_delay), mgp->intr_coal_delay_ptr);

-#if (defined CONFIG_DCA) || (defined CONFIG_DCA_MODULE)
+#ifdef CONFIG_MYRI10GE_DCA
status = myri10ge_send_cmd(mgp, MXGEFW_CMD_GET_DCA_OFFSET, &cmd, 0);
dca_tag_off = cmd.data0;
for (i = 0; i < mgp->num_slices; i++) {
@@ -1051,7 +1051,7 @@ static int myri10ge_reset(struct myri10ge_priv *mgp)
return status;
}

-#if (defined CONFIG_DCA) || (defined CONFIG_DCA_MODULE)
+#ifdef CONFIG_MYRI10GE_DCA
static void
myri10ge_write_dca(struct myri10ge_slice_state *ss, int cpu, int tag)
{
@@ -1505,7 +1505,7 @@ static int myri10ge_poll(struct napi_struct *napi, int budget)
struct net_device *netdev = ss->mgp->dev;
int work_done;

-#if (defined CONFIG_DCA) || (defined CONFIG_DCA_MODULE)
+#ifdef CONFIG_MYRI10GE_DCA
if (ss->mgp->dca_enabled)
myri10ge_update_dca(ss);
#endif
@@ -1736,7 +1736,7 @@ static const char myri10ge_gstrings_main_stats[][ETH_GSTRING_LEN] = {
"tx_boundary", "WC", "irq", "MSI", "MSIX",
"read_dma_bw_MBs", "write_dma_bw_MBs", "read_write_dma_bw_MBs",
"serial_number", "watchdog_resets",
-#if (defined CONFIG_DCA) || (defined CONFIG_DCA_MODULE)
+#ifdef CONFIG_MYRI10GE_DCA
"dca_capable_firmware", "dca_device_present",
#endif
"link_changes", "link_up", "dropped_link_overflow",
@@ -1815,7 +1815,7 @@ myri10ge_get_ethtool_stats(struct net_device *netdev,
data[i++] = (unsigned int)mgp->read_write_dma;
data[i++] = (unsigned int)mgp->serial_number;
data[i++] = (unsigned int)mgp->watchdog_resets;
-#if (defined CONFIG_DCA) || (defined CONFIG_DCA_MODULE)
+#ifdef CONFIG_MYRI10GE_DCA
data[i++] = (unsigned int)(mgp->ss[0].dca_tag != NULL);
data[i++] = (unsigned int)(mgp->dca_enabled);
#endif
@@ -3844,7 +3844,7 @@ static int myri10ge_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
dev_err(&pdev->dev, "failed reset\n");
goto abort_with_slices;
}
-#if (defined CONFIG_DCA) || (defined CONFIG_DCA_MODULE)
+#ifdef CONFIG_MYRI10GE_DCA
myri10ge_setup_dca(mgp);
#endif
pci_set_drvdata(pdev, mgp);
@@ -3948,7 +3948,7 @@ static void myri10ge_remove(struct pci_dev *pdev)
netdev = mgp->dev;
unregister_netdev(netdev);

-#if (defined CONFIG_DCA) || (defined CONFIG_DCA_MODULE)
+#ifdef CONFIG_MYRI10GE_DCA
myri10ge_teardown_dca(mgp);
#endif
myri10ge_dummy_rdma(mgp, 0);
@@ -3993,7 +3993,7 @@ static struct pci_driver myri10ge_driver = {
#endif
};

-#if (defined CONFIG_DCA) || (defined CONFIG_DCA_MODULE)
+#ifdef CONFIG_MYRI10GE_DCA
static int
myri10ge_notify_dca(struct notifier_block *nb, unsigned long event, void *p)
{
@@ -4024,7 +4024,7 @@ static __init int myri10ge_init_module(void)
myri10ge_driver.name, myri10ge_rss_hash);
myri10ge_rss_hash = MXGEFW_RSS_HASH_TYPE_SRC_PORT;
}
-#if (defined CONFIG_DCA) || (defined CONFIG_DCA_MODULE)
+#ifdef CONFIG_MYRI10GE_DCA
dca_register_notify(&myri10ge_dca_notifier);
#endif
if (myri10ge_max_slices > MYRI10GE_MAX_SLICES)
@@ -4037,7 +4037,7 @@ module_init(myri10ge_init_module);

static __exit void myri10ge_cleanup_module(void)
{
-#if (defined CONFIG_DCA) || (defined CONFIG_DCA_MODULE)
+#ifdef CONFIG_MYRI10GE_DCA
dca_unregister_notify(&myri10ge_dca_notifier);
#endif
pci_unregister_driver(&myri10ge_driver);
diff --git a/drivers/net/pcmcia/Kconfig b/drivers/net/pcmcia/Kconfig
index e8f55d8..9b8f793 100644
--- a/drivers/net/pcmcia/Kconfig
+++ b/drivers/net/pcmcia/Kconfig
@@ -111,7 +111,7 @@ config ARCNET_COM20020_CS

config PCMCIA_IBMTR
tristate "IBM PCMCIA tokenring adapter support"
- depends on IBMTR!=y && TR && !64BIT
+ depends on IBMTR!=y && TR
help
Say Y here if you intend to attach this type of Token Ring PCMCIA
card to your computer. You then also need to say Y to "Token Ring
diff --git a/drivers/net/wan/lmc/lmc_main.c b/drivers/net/wan/lmc/lmc_main.c
index f80640f..d7bb63e 100644
--- a/drivers/net/wan/lmc/lmc_main.c
+++ b/drivers/net/wan/lmc/lmc_main.c
@@ -122,7 +122,6 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/
* Most functions mess with the structure
* Disable interrupts while we do the polling
*/
- spin_lock_irqsave(&sc->lmc_lock, flags);

switch (cmd) {
/*
@@ -152,6 +151,7 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/
break;
}

+ spin_lock_irqsave(&sc->lmc_lock, flags);
sc->lmc_media->set_status (sc, &ctl);

if(ctl.crc_length != sc->ictl.crc_length) {
@@ -161,6 +161,7 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/
else
sc->TxDescriptControlInit &= ~LMC_TDES_ADD_CRC_DISABLE;
}
+ spin_unlock_irqrestore(&sc->lmc_lock, flags);

ret = 0;
break;
@@ -187,15 +188,18 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/
break; /* no change */
}

+ spin_lock_irqsave(&sc->lmc_lock, flags);
lmc_proto_close(sc);

sc->if_type = new_type;
lmc_proto_attach(sc);
ret = lmc_proto_open(sc);
+ spin_unlock_irqrestore(&sc->lmc_lock, flags);
break;
}

case LMCIOCGETXINFO: /*fold01*/
+ spin_lock_irqsave(&sc->lmc_lock, flags);
sc->lmc_xinfo.Magic0 = 0xBEEFCAFE;

sc->lmc_xinfo.PciCardType = sc->lmc_cardtype;
@@ -208,6 +212,7 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/
sc->lmc_xinfo.MaxFrameSize = LMC_PKT_BUF_SZ;
sc->lmc_xinfo.link_status = sc->lmc_media->get_link_status (sc);
sc->lmc_xinfo.mii_reg16 = lmc_mii_readreg (sc, 0, 16);
+ spin_unlock_irqrestore(&sc->lmc_lock, flags);

sc->lmc_xinfo.Magic1 = 0xDEADBEEF;

@@ -220,6 +225,7 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/
break;

case LMCIOCGETLMCSTATS:
+ spin_lock_irqsave(&sc->lmc_lock, flags);
if (sc->lmc_cardtype == LMC_CARDTYPE_T1) {
lmc_mii_writereg(sc, 0, 17, T1FRAMER_FERR_LSB);
sc->extra_stats.framingBitErrorCount +=
@@ -243,6 +249,7 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/
sc->extra_stats.severelyErroredFrameCount +=
regVal & T1FRAMER_SEF_MASK;
}
+ spin_unlock_irqrestore(&sc->lmc_lock, flags);
if (copy_to_user(ifr->ifr_data, &sc->lmc_device->stats,
sizeof(sc->lmc_device->stats)) ||
copy_to_user(ifr->ifr_data + sizeof(sc->lmc_device->stats),
@@ -258,12 +265,14 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/
break;
}

+ spin_lock_irqsave(&sc->lmc_lock, flags);
memset(&sc->lmc_device->stats, 0, sizeof(sc->lmc_device->stats));
memset(&sc->extra_stats, 0, sizeof(sc->extra_stats));
sc->extra_stats.check = STATCHECK;
sc->extra_stats.version_size = (DRIVER_VERSION << 16) +
sizeof(sc->lmc_device->stats) + sizeof(sc->extra_stats);
sc->extra_stats.lmc_cardtype = sc->lmc_cardtype;
+ spin_unlock_irqrestore(&sc->lmc_lock, flags);
ret = 0;
break;

@@ -282,8 +291,10 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/
ret = -EFAULT;
break;
}
+ spin_lock_irqsave(&sc->lmc_lock, flags);
sc->lmc_media->set_circuit_type(sc, ctl.circuit_type);
sc->ictl.circuit_type = ctl.circuit_type;
+ spin_unlock_irqrestore(&sc->lmc_lock, flags);
ret = 0;

break;
@@ -294,12 +305,14 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/
break;
}

+ spin_lock_irqsave(&sc->lmc_lock, flags);
/* Reset driver and bring back to current state */
printk (" REG16 before reset +%04x\n", lmc_mii_readreg (sc, 0, 16));
lmc_running_reset (dev);
printk (" REG16 after reset +%04x\n", lmc_mii_readreg (sc, 0, 16));

LMC_EVENT_LOG(LMC_EVENT_FORCEDRESET, LMC_CSR_READ (sc, csr_status), lmc_mii_readreg (sc, 0, 16));
+ spin_unlock_irqrestore(&sc->lmc_lock, flags);

ret = 0;
break;
@@ -338,14 +351,15 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/
*/
netif_stop_queue(dev);

- if (copy_from_user(&xc, ifr->ifr_data, sizeof(struct lmc_xilinx_control))) {
+ if (copy_from_user(&xc, ifr->ifr_data, sizeof(struct lmc_xilinx_control))) {
ret = -EFAULT;
break;
- }
+ }
switch(xc.command){
case lmc_xilinx_reset: /*fold02*/
{
u16 mii;
+ spin_lock_irqsave(&sc->lmc_lock, flags);
mii = lmc_mii_readreg (sc, 0, 16);

/*
@@ -404,6 +418,7 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/
lmc_led_off(sc, LMC_DS3_LED2);
}
}
+ spin_unlock_irqrestore(&sc->lmc_lock, flags);



@@ -416,6 +431,7 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/
{
u16 mii;
int timeout = 500000;
+ spin_lock_irqsave(&sc->lmc_lock, flags);
mii = lmc_mii_readreg (sc, 0, 16);

/*
@@ -451,13 +467,14 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/
*/
while( (LMC_CSR_READ(sc, csr_gp) & LMC_GEP_INIT) == 0 &&
(timeout-- > 0))
- ;
+ cpu_relax();


/*
* stop driving Xilinx-related signals
*/
lmc_gpio_mkinput(sc, 0xff);
+ spin_unlock_irqrestore(&sc->lmc_lock, flags);

ret = 0x0;

@@ -493,6 +510,7 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/

printk("%s: Starting load of data Len: %d at 0x%p == 0x%p\n", dev->name, xc.len, xc.data, data);

+ spin_lock_irqsave(&sc->lmc_lock, flags);
lmc_gpio_mkinput(sc, 0xff);

/*
@@ -545,7 +563,7 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/
*/
while( (LMC_CSR_READ(sc, csr_gp) & LMC_GEP_INIT) == 0 &&
(timeout-- > 0))
- ;
+ cpu_relax();

printk(KERN_DEBUG "%s: Waited %d for the Xilinx to clear it's memory\n", dev->name, 500000-timeout);

@@ -588,6 +606,7 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/

sc->lmc_miireg16 &= ~LMC_MII16_FIFO_RESET;
lmc_mii_writereg(sc, 0, 16, sc->lmc_miireg16);
+ spin_unlock_irqrestore(&sc->lmc_lock, flags);

kfree(data);

@@ -611,8 +630,6 @@ int lmc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) /*fold00*/
break;
}

- spin_unlock_irqrestore(&sc->lmc_lock, flags); /*fold01*/
-
lmc_trace(dev, "lmc_ioctl out");

return ret;
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index c749bdb..9ffe743 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -239,11 +239,14 @@ static void xennet_alloc_rx_buffers(struct net_device *dev)
*/
batch_target = np->rx_target - (req_prod - np->rx.rsp_cons);
for (i = skb_queue_len(&np->rx_batch); i < batch_target; i++) {
- skb = __netdev_alloc_skb(dev, RX_COPY_THRESHOLD,
+ skb = __netdev_alloc_skb(dev, RX_COPY_THRESHOLD + NET_IP_ALIGN,
GFP_ATOMIC | __GFP_NOWARN);
if (unlikely(!skb))
goto no_skb;

+ /* Align ip header to a 16 bytes boundary */
+ skb_reserve(skb, NET_IP_ALIGN);
+
page = alloc_page(GFP_ATOMIC | __GFP_NOWARN);
if (!page) {
kfree_skb(skb);
--
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