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

15 files changed, 106 insertions, 40 deletions

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 2571a62d923e..8b72c88ba213 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -1126,10 +1126,10 @@ regen_max_retry - INTEGER
         Default: 5
 
 max_addresses - INTEGER
-        Number of maximum addresses per interface.  0 disables limitation.
-        It is recommended not set too large value (or 0) because it would
-        be too easy way to crash kernel to allow to create too much of
-        autoconfigured addresses.
+        Maximum number of autoconfigured addresses per interface.  Setting
+        to zero disables the limitation.  It is not recommended to set this
+        value too large (or to zero) because it would be an easy way to
+        crash the kernel by allowing too many addresses to be created.
         Default: 16
 
 disable_ipv6 - BOOLEAN
diff --git a/MAINTAINERS b/MAINTAINERS
index 9b0557a42a9a..2a479c7005b8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3495,9 +3495,9 @@ S:	Maintained
 F:      drivers/net/wireless/libertas/
 
 MARVELL MV643XX ETHERNET DRIVER
-M:      Lennert Buytenhek <buytenh@marvell.com>
+M:      Lennert Buytenhek <buytenh@wantstofly.org>
 L:      netdev@vger.kernel.org
-S:      Supported
+S:      Maintained
 F:      drivers/net/mv643xx_eth.*
 F:      include/linux/mv643xx.h
 
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 319c2b5281e9..8be6faee43e6 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -4005,11 +4005,21 @@ check_page:
                         }
                 }
 
-                if (!buffer_info->dma)
+                if (!buffer_info->dma) {
                         buffer_info->dma = pci_map_page(pdev,
                                                         buffer_info->page, 0,
                                                         buffer_info->length,
                                                         PCI_DMA_FROMDEVICE);
+                        if (pci_dma_mapping_error(pdev, buffer_info->dma)) {
+                                put_page(buffer_info->page);
+                                dev_kfree_skb(skb);
+                                buffer_info->page = NULL;
+                                buffer_info->skb = NULL;
+                                buffer_info->dma = 0;
+                                adapter->alloc_rx_buff_failed++;
+                                break; /* while !buffer_info->skb */
+                        }
+                }
 
                 rx_desc = E1000_RX_DESC(*rx_ring, i);
                 rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
@@ -4100,6 +4110,13 @@ map_skb:
                                                   skb->data,
                                                   buffer_info->length,
                                                   PCI_DMA_FROMDEVICE);
+                if (pci_dma_mapping_error(pdev, buffer_info->dma)) {
+                        dev_kfree_skb(skb);
+                        buffer_info->skb = NULL;
+                        buffer_info->dma = 0;
+                        adapter->alloc_rx_buff_failed++;
+                        break; /* while !buffer_info->skb */
+                }
 
                 /*
                  * XXX if it was allocated cleanly it will never map to a
diff --git a/drivers/net/sfc/falcon_boards.c b/drivers/net/sfc/falcon_boards.c
index bf0b96af5334..5712fddd72f2 100644
--- a/drivers/net/sfc/falcon_boards.c
+++ b/drivers/net/sfc/falcon_boards.c
@@ -29,6 +29,15 @@
 #define FALCON_BOARD_SFN4111T 0x51
 #define FALCON_BOARD_SFN4112F 0x52
 
+/* Board temperature is about 15°C above ambient when air flow is
+ * limited. */
+#define FALCON_BOARD_TEMP_BIAS  15
+
+/* SFC4000 datasheet says: 'The maximum permitted junction temperature
+ * is 125°C; the thermal design of the environment for the SFC4000
+ * should aim to keep this well below 100°C.' */
+#define FALCON_JUNC_TEMP_MAX    90
+
 /*****************************************************************************
  * Support for LM87 sensor chip used on several boards
  */
@@ -548,16 +557,16 @@ fail_hwmon:
 static u8 sfe4002_lm87_channel = 0x03; /* use AIN not FAN inputs */
 
 static const u8 sfe4002_lm87_regs[] = {
-        LM87_IN_LIMITS(0, 0x83, 0x91),          /* 2.5V:  1.8V +/- 5% */
-        LM87_IN_LIMITS(1, 0x51, 0x5a),          /* Vccp1: 1.2V +/- 5% */
-        LM87_IN_LIMITS(2, 0xb6, 0xca),          /* 3.3V:  3.3V +/- 5% */
-        LM87_IN_LIMITS(3, 0xb0, 0xc9),          /* 5V:    4.6-5.2V */
-        LM87_IN_LIMITS(4, 0xb0, 0xe0),          /* 12V:   11-14V */
-        LM87_IN_LIMITS(5, 0x44, 0x4b),          /* Vccp2: 1.0V +/- 5% */
-        LM87_AIN_LIMITS(0, 0xa0, 0xb2),         /* AIN1:  1.66V +/- 5% */
-        LM87_AIN_LIMITS(1, 0x91, 0xa1),         /* AIN2:  1.5V +/- 5% */
-        LM87_TEMP_INT_LIMITS(10, 60),           /* board */
-        LM87_TEMP_EXT1_LIMITS(10, 70),          /* Falcon */
+        LM87_IN_LIMITS(0, 0x7c, 0x99),          /* 2.5V:  1.8V +/- 10% */
+        LM87_IN_LIMITS(1, 0x4c, 0x5e),          /* Vccp1: 1.2V +/- 10% */
+        LM87_IN_LIMITS(2, 0xac, 0xd4),          /* 3.3V:  3.3V +/- 10% */
+        LM87_IN_LIMITS(3, 0xac, 0xd4),          /* 5V:    5.0V +/- 10% */
+        LM87_IN_LIMITS(4, 0xac, 0xe0),          /* 12V:   10.8-14V */
+        LM87_IN_LIMITS(5, 0x3f, 0x4f),          /* Vccp2: 1.0V +/- 10% */
+        LM87_AIN_LIMITS(0, 0x98, 0xbb),         /* AIN1:  1.66V +/- 10% */
+        LM87_AIN_LIMITS(1, 0x8a, 0xa9),         /* AIN2:  1.5V +/- 10% */
+        LM87_TEMP_INT_LIMITS(0, 80 + FALCON_BOARD_TEMP_BIAS),
+        LM87_TEMP_EXT1_LIMITS(0, FALCON_JUNC_TEMP_MAX),
         0
 };
 
@@ -619,14 +628,14 @@ static int sfe4002_init(struct efx_nic *efx)
 static u8 sfn4112f_lm87_channel = 0x03; /* use AIN not FAN inputs */
 
 static const u8 sfn4112f_lm87_regs[] = {
-        LM87_IN_LIMITS(0, 0x83, 0x91),          /* 2.5V:  1.8V +/- 5% */
-        LM87_IN_LIMITS(1, 0x51, 0x5a),          /* Vccp1: 1.2V +/- 5% */
-        LM87_IN_LIMITS(2, 0xb6, 0xca),          /* 3.3V:  3.3V +/- 5% */
-        LM87_IN_LIMITS(4, 0xb0, 0xe0),          /* 12V:   11-14V */
-        LM87_IN_LIMITS(5, 0x44, 0x4b),          /* Vccp2: 1.0V +/- 5% */
-        LM87_AIN_LIMITS(1, 0x91, 0xa1),         /* AIN2:  1.5V +/- 5% */
-        LM87_TEMP_INT_LIMITS(10, 60),           /* board */
-        LM87_TEMP_EXT1_LIMITS(10, 70),          /* Falcon */
+        LM87_IN_LIMITS(0, 0x7c, 0x99),          /* 2.5V:  1.8V +/- 10% */
+        LM87_IN_LIMITS(1, 0x4c, 0x5e),          /* Vccp1: 1.2V +/- 10% */
+        LM87_IN_LIMITS(2, 0xac, 0xd4),          /* 3.3V:  3.3V +/- 10% */
+        LM87_IN_LIMITS(4, 0xac, 0xe0),          /* 12V:   10.8-14V */
+        LM87_IN_LIMITS(5, 0x3f, 0x4f),          /* Vccp2: 1.0V +/- 10% */
+        LM87_AIN_LIMITS(1, 0x8a, 0xa9),         /* AIN2:  1.5V +/- 10% */
+        LM87_TEMP_INT_LIMITS(0, 60 + FALCON_BOARD_TEMP_BIAS),
+        LM87_TEMP_EXT1_LIMITS(0, FALCON_JUNC_TEMP_MAX),
         0
 };
 
diff --git a/drivers/net/sfc/mcdi.c b/drivers/net/sfc/mcdi.c
index 86610db2cff5..c48669c77414 100644
--- a/drivers/net/sfc/mcdi.c
+++ b/drivers/net/sfc/mcdi.c
@@ -127,7 +127,7 @@ static int efx_mcdi_poll(struct efx_nic *efx)
         efx_dword_t reg;
 
         /* Check for a reboot atomically with respect to efx_mcdi_copyout() */
-        rc = efx_mcdi_poll_reboot(efx);
+        rc = -efx_mcdi_poll_reboot(efx);
         if (rc)
                 goto out;
 
diff --git a/drivers/net/tc35815.c b/drivers/net/tc35815.c
index d838d4015c63..a2c635ecdab8 100644
--- a/drivers/net/tc35815.c
+++ b/drivers/net/tc35815.c
@@ -1437,7 +1437,6 @@ static int tc35815_do_interrupt(struct net_device *dev, u32 status, int limit)
                 /* Transmit complete. */
                 lp->lstats.tx_ints++;
                 tc35815_txdone(dev);
-                netif_wake_queue(dev);
                 if (ret < 0)
                         ret = 0;
         }
diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 3486e8ca039a..c8cdb7f30adc 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -582,6 +582,11 @@ static const struct usb_device_id	products [] = {
                         USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
         .driver_info = (unsigned long) &mbm_info,
 }, {
+        /* Ericsson C3607w ver 2 */
+        USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x190b, USB_CLASS_COMM,
+                        USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
+        .driver_info = (unsigned long) &mbm_info,
+}, {
         /* Toshiba F3507g */
         USB_DEVICE_AND_INTERFACE_INFO(0x0930, 0x130b, USB_CLASS_COMM,
                         USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index aebe8c51d3e1..b07874f7da7f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -2008,7 +2008,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
                         IWL_DEBUG_TX_REPLY(priv, "Retry scheduler reclaim scd_ssn "
                                            "%d index %d\n", scd_ssn , index);
                         freed = iwl_tx_queue_reclaim(priv, txq_id, index);
-                        priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
+                        iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
 
                         if (priv->mac80211_registered &&
                             (iwl_queue_space(&txq->q) > txq->q.low_mark) &&
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index f3d662c8cbcf..2cf92a51f041 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -1116,7 +1116,7 @@ static void iwl5000_rx_reply_tx(struct iwl_priv *priv,
                                         scd_ssn , index, txq_id, txq->swq_id);
 
                         freed = iwl_tx_queue_reclaim(priv, txq_id, index);
-                        priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
+                        iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
 
                         if (priv->mac80211_registered &&
                             (iwl_queue_space(&txq->q) > txq->q.low_mark) &&
@@ -1144,16 +1144,14 @@ static void iwl5000_rx_reply_tx(struct iwl_priv *priv,
                                    tx_resp->failure_frame);
 
                 freed = iwl_tx_queue_reclaim(priv, txq_id, index);
-                if (ieee80211_is_data_qos(tx_resp->frame_ctrl))
-                        priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
+                iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
 
                 if (priv->mac80211_registered &&
                     (iwl_queue_space(&txq->q) > txq->q.low_mark))
                         iwl_wake_queue(priv, txq_id);
         }
 
-        if (ieee80211_is_data_qos(tx_resp->frame_ctrl))
-                iwl_txq_check_empty(priv, sta_id, tid, txq_id);
+        iwl_txq_check_empty(priv, sta_id, tid, txq_id);
 
         if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK))
                 IWL_ERR(priv, "TODO:  Implement Tx ABORT REQUIRED!!!\n");
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index d390eef2efe5..728410083cb8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -2787,8 +2787,8 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
                 if ((le16_to_cpu(priv->staging_rxon.channel) != ch))
                         priv->staging_rxon.flags = 0;
 
-                iwl_set_rxon_ht(priv, ht_conf);
                 iwl_set_rxon_channel(priv, conf->channel);
+                iwl_set_rxon_ht(priv, ht_conf);
 
                 iwl_set_flags_for_band(priv, conf->channel->band);
                 spin_unlock_irqrestore(&priv->lock, flags);
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 8f0c564e68b0..1b0701b876c3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -451,6 +451,8 @@ void iwl_hw_txq_ctx_free(struct iwl_priv *priv);
 int iwl_hw_tx_queue_init(struct iwl_priv *priv,
                          struct iwl_tx_queue *txq);
 int iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
+void iwl_free_tfds_in_queue(struct iwl_priv *priv,
+                            int sta_id, int tid, int freed);
 int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
                       int slots_num, u32 txq_id);
 void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id);
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index d365d13e3291..6eff3d4d0616 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -120,6 +120,20 @@ int iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq)
 EXPORT_SYMBOL(iwl_txq_update_write_ptr);
 
 
+void iwl_free_tfds_in_queue(struct iwl_priv *priv,
+                            int sta_id, int tid, int freed)
+{
+        if (priv->stations[sta_id].tid[tid].tfds_in_queue >= freed)
+                priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
+        else {
+                IWL_ERR(priv, "free more than tfds_in_queue (%u:%d)\n",
+                        priv->stations[sta_id].tid[tid].tfds_in_queue,
+                        freed);
+                priv->stations[sta_id].tid[tid].tfds_in_queue = 0;
+        }
+}
+EXPORT_SYMBOL(iwl_free_tfds_in_queue);
+
 /**
  * iwl_tx_queue_free - Deallocate DMA queue.
  * @txq: Transmit queue to deallocate.
@@ -1131,6 +1145,7 @@ int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index)
         struct iwl_queue *q = &txq->q;
         struct iwl_tx_info *tx_info;
         int nfreed = 0;
+        struct ieee80211_hdr *hdr;
 
         if ((index >= q->n_bd) || (iwl_queue_used(q, index) == 0)) {
                 IWL_ERR(priv, "Read index for DMA queue txq id (%d), index %d, "
@@ -1145,13 +1160,16 @@ int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index)
 
                 tx_info = &txq->txb[txq->q.read_ptr];
                 iwl_tx_status(priv, tx_info->skb[0]);
+
+                hdr = (struct ieee80211_hdr *)tx_info->skb[0]->data;
+                if (hdr && ieee80211_is_data_qos(hdr->frame_control))
+                        nfreed++;
                 tx_info->skb[0] = NULL;
 
                 if (priv->cfg->ops->lib->txq_inval_byte_cnt_tbl)
                         priv->cfg->ops->lib->txq_inval_byte_cnt_tbl(priv, txq);
 
                 priv->cfg->ops->lib->txq_free_tfd(priv, txq);
-                nfreed++;
         }
         return nfreed;
 }
@@ -1559,7 +1577,7 @@ void iwl_rx_reply_compressed_ba(struct iwl_priv *priv,
         if (txq->q.read_ptr != (ba_resp_scd_ssn & 0xff)) {
                 /* calculate mac80211 ampdu sw queue to wake */
                 int freed = iwl_tx_queue_reclaim(priv, scd_flow, index);
-                priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
+                iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
 
                 if ((iwl_queue_space(&txq->q) > txq->q.low_mark) &&
                     priv->mac80211_registered &&
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index fbc1c7472c5e..099c753c4213 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -410,7 +410,8 @@ static ssize_t wireless_show(struct device *d, char *buf,
         const struct iw_statistics *iw;
         ssize_t ret = -EINVAL;
 
-        rtnl_lock();
+        if (!rtnl_trylock())
+                return restart_syscall();
         if (dev_isalive(dev)) {
                 iw = get_wireless_stats(dev);
                 if (iw)
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 014982b61564..51ca946e3392 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1317,14 +1317,19 @@ static int devinet_sysctl_forward(ctl_table *ctl, int write,
 {
         int *valp = ctl->data;
         int val = *valp;
+        loff_t pos = *ppos;
         int ret = proc_dointvec(ctl, write, buffer, lenp, ppos);
 
         if (write && *valp != val) {
                 struct net *net = ctl->extra2;
 
                 if (valp != &IPV4_DEVCONF_DFLT(net, FORWARDING)) {
-                        if (!rtnl_trylock())
+                        if (!rtnl_trylock()) {
+                                /* Restore the original values before restarting */
+                                *valp = val;
+                                *ppos = pos;
                                 return restart_syscall();
+                        }
                         if (valp == &IPV4_DEVCONF_ALL(net, FORWARDING)) {
                                 inet_forward_change(net);
                         } else if (*valp) {
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index b0d4a4b23db5..1b327f15e7e7 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -502,8 +502,11 @@ static int addrconf_fixup_forwarding(struct ctl_table *table, int *p, int old)
         if (p == &net->ipv6.devconf_dflt->forwarding)
                 return 0;
 
-        if (!rtnl_trylock())
+        if (!rtnl_trylock()) {
+                /* Restore the original values before restarting */
+                *p = old;
                 return restart_syscall();
+        }
 
         if (p == &net->ipv6.devconf_all->forwarding) {
                 __s32 newf = net->ipv6.devconf_all->forwarding;
@@ -4042,12 +4045,15 @@ int addrconf_sysctl_forward(ctl_table *ctl, int write,
 {
         int *valp = ctl->data;
         int val = *valp;
+        loff_t pos = *ppos;
         int ret;
 
         ret = proc_dointvec(ctl, write, buffer, lenp, ppos);
 
         if (write)
                 ret = addrconf_fixup_forwarding(ctl, valp, val);
+        if (ret)
+                *ppos = pos;
         return ret;
 }
 
@@ -4089,8 +4095,11 @@ static int addrconf_disable_ipv6(struct ctl_table *table, int *p, int old)
         if (p == &net->ipv6.devconf_dflt->disable_ipv6)
                 return 0;
 
-        if (!rtnl_trylock())
+        if (!rtnl_trylock()) {
+                /* Restore the original values before restarting */
+                *p = old;
                 return restart_syscall();
+        }
 
         if (p == &net->ipv6.devconf_all->disable_ipv6) {
                 __s32 newf = net->ipv6.devconf_all->disable_ipv6;
@@ -4109,12 +4118,15 @@ int addrconf_sysctl_disable(ctl_table *ctl, int write,
 {
         int *valp = ctl->data;
         int val = *valp;
+        loff_t pos = *ppos;
         int ret;
 
         ret = proc_dointvec(ctl, write, buffer, lenp, ppos);
 
         if (write)
                 ret = addrconf_disable_ipv6(ctl, valp, val);
+        if (ret)
+                *ppos = pos;
         return ret;
 }