Commit 04488734 authored by David S. Miller's avatar David S. Miller

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

parents 54831a83 c4d49794
...@@ -1126,10 +1126,10 @@ regen_max_retry - INTEGER ...@@ -1126,10 +1126,10 @@ regen_max_retry - INTEGER
Default: 5 Default: 5
max_addresses - INTEGER max_addresses - INTEGER
Number of maximum addresses per interface. 0 disables limitation. Maximum number of autoconfigured addresses per interface. Setting
It is recommended not set too large value (or 0) because it would to zero disables the limitation. It is not recommended to set this
be too easy way to crash kernel to allow to create too much of value too large (or to zero) because it would be an easy way to
autoconfigured addresses. crash the kernel by allowing too many addresses to be created.
Default: 16 Default: 16
disable_ipv6 - BOOLEAN disable_ipv6 - BOOLEAN
......
...@@ -3495,9 +3495,9 @@ S: Maintained ...@@ -3495,9 +3495,9 @@ S: Maintained
F: drivers/net/wireless/libertas/ F: drivers/net/wireless/libertas/
MARVELL MV643XX ETHERNET DRIVER MARVELL MV643XX ETHERNET DRIVER
M: Lennert Buytenhek <buytenh@marvell.com> M: Lennert Buytenhek <buytenh@wantstofly.org>
L: netdev@vger.kernel.org L: netdev@vger.kernel.org
S: Supported S: Maintained
F: drivers/net/mv643xx_eth.* F: drivers/net/mv643xx_eth.*
F: include/linux/mv643xx.h F: include/linux/mv643xx.h
......
...@@ -4005,11 +4005,21 @@ e1000_alloc_jumbo_rx_buffers(struct e1000_adapter *adapter, ...@@ -4005,11 +4005,21 @@ e1000_alloc_jumbo_rx_buffers(struct e1000_adapter *adapter,
} }
} }
if (!buffer_info->dma) if (!buffer_info->dma) {
buffer_info->dma = pci_map_page(pdev, buffer_info->dma = pci_map_page(pdev,
buffer_info->page, 0, buffer_info->page, 0,
buffer_info->length, buffer_info->length,
PCI_DMA_FROMDEVICE); 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 = E1000_RX_DESC(*rx_ring, i);
rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma); rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
...@@ -4100,6 +4110,13 @@ static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter, ...@@ -4100,6 +4110,13 @@ static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter,
skb->data, skb->data,
buffer_info->length, buffer_info->length,
PCI_DMA_FROMDEVICE); 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 * XXX if it was allocated cleanly it will never map to a
......
...@@ -29,6 +29,15 @@ ...@@ -29,6 +29,15 @@
#define FALCON_BOARD_SFN4111T 0x51 #define FALCON_BOARD_SFN4111T 0x51
#define FALCON_BOARD_SFN4112F 0x52 #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 * Support for LM87 sensor chip used on several boards
*/ */
...@@ -548,16 +557,16 @@ static int sfn4111t_init(struct efx_nic *efx) ...@@ -548,16 +557,16 @@ static int sfn4111t_init(struct efx_nic *efx)
static u8 sfe4002_lm87_channel = 0x03; /* use AIN not FAN inputs */ static u8 sfe4002_lm87_channel = 0x03; /* use AIN not FAN inputs */
static const u8 sfe4002_lm87_regs[] = { static const u8 sfe4002_lm87_regs[] = {
LM87_IN_LIMITS(0, 0x83, 0x91), /* 2.5V: 1.8V +/- 5% */ LM87_IN_LIMITS(0, 0x7c, 0x99), /* 2.5V: 1.8V +/- 10% */
LM87_IN_LIMITS(1, 0x51, 0x5a), /* Vccp1: 1.2V +/- 5% */ LM87_IN_LIMITS(1, 0x4c, 0x5e), /* Vccp1: 1.2V +/- 10% */
LM87_IN_LIMITS(2, 0xb6, 0xca), /* 3.3V: 3.3V +/- 5% */ LM87_IN_LIMITS(2, 0xac, 0xd4), /* 3.3V: 3.3V +/- 10% */
LM87_IN_LIMITS(3, 0xb0, 0xc9), /* 5V: 4.6-5.2V */ LM87_IN_LIMITS(3, 0xac, 0xd4), /* 5V: 5.0V +/- 10% */
LM87_IN_LIMITS(4, 0xb0, 0xe0), /* 12V: 11-14V */ LM87_IN_LIMITS(4, 0xac, 0xe0), /* 12V: 10.8-14V */
LM87_IN_LIMITS(5, 0x44, 0x4b), /* Vccp2: 1.0V +/- 5% */ LM87_IN_LIMITS(5, 0x3f, 0x4f), /* Vccp2: 1.0V +/- 10% */
LM87_AIN_LIMITS(0, 0xa0, 0xb2), /* AIN1: 1.66V +/- 5% */ LM87_AIN_LIMITS(0, 0x98, 0xbb), /* AIN1: 1.66V +/- 10% */
LM87_AIN_LIMITS(1, 0x91, 0xa1), /* AIN2: 1.5V +/- 5% */ LM87_AIN_LIMITS(1, 0x8a, 0xa9), /* AIN2: 1.5V +/- 10% */
LM87_TEMP_INT_LIMITS(10, 60), /* board */ LM87_TEMP_INT_LIMITS(0, 80 + FALCON_BOARD_TEMP_BIAS),
LM87_TEMP_EXT1_LIMITS(10, 70), /* Falcon */ LM87_TEMP_EXT1_LIMITS(0, FALCON_JUNC_TEMP_MAX),
0 0
}; };
...@@ -619,14 +628,14 @@ static int sfe4002_init(struct efx_nic *efx) ...@@ -619,14 +628,14 @@ static int sfe4002_init(struct efx_nic *efx)
static u8 sfn4112f_lm87_channel = 0x03; /* use AIN not FAN inputs */ static u8 sfn4112f_lm87_channel = 0x03; /* use AIN not FAN inputs */
static const u8 sfn4112f_lm87_regs[] = { static const u8 sfn4112f_lm87_regs[] = {
LM87_IN_LIMITS(0, 0x83, 0x91), /* 2.5V: 1.8V +/- 5% */ LM87_IN_LIMITS(0, 0x7c, 0x99), /* 2.5V: 1.8V +/- 10% */
LM87_IN_LIMITS(1, 0x51, 0x5a), /* Vccp1: 1.2V +/- 5% */ LM87_IN_LIMITS(1, 0x4c, 0x5e), /* Vccp1: 1.2V +/- 10% */
LM87_IN_LIMITS(2, 0xb6, 0xca), /* 3.3V: 3.3V +/- 5% */ LM87_IN_LIMITS(2, 0xac, 0xd4), /* 3.3V: 3.3V +/- 10% */
LM87_IN_LIMITS(4, 0xb0, 0xe0), /* 12V: 11-14V */ LM87_IN_LIMITS(4, 0xac, 0xe0), /* 12V: 10.8-14V */
LM87_IN_LIMITS(5, 0x44, 0x4b), /* Vccp2: 1.0V +/- 5% */ LM87_IN_LIMITS(5, 0x3f, 0x4f), /* Vccp2: 1.0V +/- 10% */
LM87_AIN_LIMITS(1, 0x91, 0xa1), /* AIN2: 1.5V +/- 5% */ LM87_AIN_LIMITS(1, 0x8a, 0xa9), /* AIN2: 1.5V +/- 10% */
LM87_TEMP_INT_LIMITS(10, 60), /* board */ LM87_TEMP_INT_LIMITS(0, 60 + FALCON_BOARD_TEMP_BIAS),
LM87_TEMP_EXT1_LIMITS(10, 70), /* Falcon */ LM87_TEMP_EXT1_LIMITS(0, FALCON_JUNC_TEMP_MAX),
0 0
}; };
......
...@@ -127,7 +127,7 @@ static int efx_mcdi_poll(struct efx_nic *efx) ...@@ -127,7 +127,7 @@ static int efx_mcdi_poll(struct efx_nic *efx)
efx_dword_t reg; efx_dword_t reg;
/* Check for a reboot atomically with respect to efx_mcdi_copyout() */ /* 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) if (rc)
goto out; goto out;
......
...@@ -1437,7 +1437,6 @@ static int tc35815_do_interrupt(struct net_device *dev, u32 status, int limit) ...@@ -1437,7 +1437,6 @@ static int tc35815_do_interrupt(struct net_device *dev, u32 status, int limit)
/* Transmit complete. */ /* Transmit complete. */
lp->lstats.tx_ints++; lp->lstats.tx_ints++;
tc35815_txdone(dev); tc35815_txdone(dev);
netif_wake_queue(dev);
if (ret < 0) if (ret < 0)
ret = 0; ret = 0;
} }
......
...@@ -581,6 +581,11 @@ static const struct usb_device_id products [] = { ...@@ -581,6 +581,11 @@ static const struct usb_device_id products [] = {
USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x1049, USB_CLASS_COMM, USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x1049, USB_CLASS_COMM,
USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE), USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
.driver_info = (unsigned long) &mbm_info, .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 */ /* Toshiba F3507g */
USB_DEVICE_AND_INTERFACE_INFO(0x0930, 0x130b, USB_CLASS_COMM, USB_DEVICE_AND_INTERFACE_INFO(0x0930, 0x130b, USB_CLASS_COMM,
......
...@@ -2008,7 +2008,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv, ...@@ -2008,7 +2008,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
IWL_DEBUG_TX_REPLY(priv, "Retry scheduler reclaim scd_ssn " IWL_DEBUG_TX_REPLY(priv, "Retry scheduler reclaim scd_ssn "
"%d index %d\n", scd_ssn , index); "%d index %d\n", scd_ssn , index);
freed = iwl_tx_queue_reclaim(priv, txq_id, 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 && if (priv->mac80211_registered &&
(iwl_queue_space(&txq->q) > txq->q.low_mark) && (iwl_queue_space(&txq->q) > txq->q.low_mark) &&
......
...@@ -1116,7 +1116,7 @@ static void iwl5000_rx_reply_tx(struct iwl_priv *priv, ...@@ -1116,7 +1116,7 @@ static void iwl5000_rx_reply_tx(struct iwl_priv *priv,
scd_ssn , index, txq_id, txq->swq_id); scd_ssn , index, txq_id, txq->swq_id);
freed = iwl_tx_queue_reclaim(priv, txq_id, 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 && if (priv->mac80211_registered &&
(iwl_queue_space(&txq->q) > txq->q.low_mark) && (iwl_queue_space(&txq->q) > txq->q.low_mark) &&
...@@ -1144,15 +1144,13 @@ static void iwl5000_rx_reply_tx(struct iwl_priv *priv, ...@@ -1144,15 +1144,13 @@ static void iwl5000_rx_reply_tx(struct iwl_priv *priv,
tx_resp->failure_frame); tx_resp->failure_frame);
freed = iwl_tx_queue_reclaim(priv, txq_id, index); freed = iwl_tx_queue_reclaim(priv, txq_id, index);
if (ieee80211_is_data_qos(tx_resp->frame_ctrl)) iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
if (priv->mac80211_registered && if (priv->mac80211_registered &&
(iwl_queue_space(&txq->q) > txq->q.low_mark)) (iwl_queue_space(&txq->q) > txq->q.low_mark))
iwl_wake_queue(priv, txq_id); 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)) if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK))
......
...@@ -2787,8 +2787,8 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed) ...@@ -2787,8 +2787,8 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
if ((le16_to_cpu(priv->staging_rxon.channel) != ch)) if ((le16_to_cpu(priv->staging_rxon.channel) != ch))
priv->staging_rxon.flags = 0; priv->staging_rxon.flags = 0;
iwl_set_rxon_ht(priv, ht_conf);
iwl_set_rxon_channel(priv, conf->channel); iwl_set_rxon_channel(priv, conf->channel);
iwl_set_rxon_ht(priv, ht_conf);
iwl_set_flags_for_band(priv, conf->channel->band); iwl_set_flags_for_band(priv, conf->channel->band);
spin_unlock_irqrestore(&priv->lock, flags); spin_unlock_irqrestore(&priv->lock, flags);
......
...@@ -451,6 +451,8 @@ void iwl_hw_txq_ctx_free(struct iwl_priv *priv); ...@@ -451,6 +451,8 @@ void iwl_hw_txq_ctx_free(struct iwl_priv *priv);
int iwl_hw_tx_queue_init(struct iwl_priv *priv, int iwl_hw_tx_queue_init(struct iwl_priv *priv,
struct iwl_tx_queue *txq); struct iwl_tx_queue *txq);
int iwl_txq_update_write_ptr(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 iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
int slots_num, u32 txq_id); int slots_num, u32 txq_id);
void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id); void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id);
......
...@@ -120,6 +120,20 @@ int iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq) ...@@ -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); 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. * iwl_tx_queue_free - Deallocate DMA queue.
* @txq: Transmit queue to deallocate. * @txq: Transmit queue to deallocate.
...@@ -1131,6 +1145,7 @@ int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index) ...@@ -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_queue *q = &txq->q;
struct iwl_tx_info *tx_info; struct iwl_tx_info *tx_info;
int nfreed = 0; int nfreed = 0;
struct ieee80211_hdr *hdr;
if ((index >= q->n_bd) || (iwl_queue_used(q, index) == 0)) { if ((index >= q->n_bd) || (iwl_queue_used(q, index) == 0)) {
IWL_ERR(priv, "Read index for DMA queue txq id (%d), index %d, " 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) ...@@ -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]; tx_info = &txq->txb[txq->q.read_ptr];
iwl_tx_status(priv, tx_info->skb[0]); 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; tx_info->skb[0] = NULL;
if (priv->cfg->ops->lib->txq_inval_byte_cnt_tbl) 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_inval_byte_cnt_tbl(priv, txq);
priv->cfg->ops->lib->txq_free_tfd(priv, txq); priv->cfg->ops->lib->txq_free_tfd(priv, txq);
nfreed++;
} }
return nfreed; return nfreed;
} }
...@@ -1559,7 +1577,7 @@ void iwl_rx_reply_compressed_ba(struct iwl_priv *priv, ...@@ -1559,7 +1577,7 @@ void iwl_rx_reply_compressed_ba(struct iwl_priv *priv,
if (txq->q.read_ptr != (ba_resp_scd_ssn & 0xff)) { if (txq->q.read_ptr != (ba_resp_scd_ssn & 0xff)) {
/* calculate mac80211 ampdu sw queue to wake */ /* calculate mac80211 ampdu sw queue to wake */
int freed = iwl_tx_queue_reclaim(priv, scd_flow, index); 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) && if ((iwl_queue_space(&txq->q) > txq->q.low_mark) &&
priv->mac80211_registered && priv->mac80211_registered &&
......
...@@ -410,7 +410,8 @@ static ssize_t wireless_show(struct device *d, char *buf, ...@@ -410,7 +410,8 @@ static ssize_t wireless_show(struct device *d, char *buf,
const struct iw_statistics *iw; const struct iw_statistics *iw;
ssize_t ret = -EINVAL; ssize_t ret = -EINVAL;
rtnl_lock(); if (!rtnl_trylock())
return restart_syscall();
if (dev_isalive(dev)) { if (dev_isalive(dev)) {
iw = get_wireless_stats(dev); iw = get_wireless_stats(dev);
if (iw) if (iw)
......
...@@ -1317,14 +1317,19 @@ static int devinet_sysctl_forward(ctl_table *ctl, int write, ...@@ -1317,14 +1317,19 @@ static int devinet_sysctl_forward(ctl_table *ctl, int write,
{ {
int *valp = ctl->data; int *valp = ctl->data;
int val = *valp; int val = *valp;
loff_t pos = *ppos;
int ret = proc_dointvec(ctl, write, buffer, lenp, ppos); int ret = proc_dointvec(ctl, write, buffer, lenp, ppos);
if (write && *valp != val) { if (write && *valp != val) {
struct net *net = ctl->extra2; struct net *net = ctl->extra2;
if (valp != &IPV4_DEVCONF_DFLT(net, FORWARDING)) { 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(); return restart_syscall();
}
if (valp == &IPV4_DEVCONF_ALL(net, FORWARDING)) { if (valp == &IPV4_DEVCONF_ALL(net, FORWARDING)) {
inet_forward_change(net); inet_forward_change(net);
} else if (*valp) { } else if (*valp) {
......
...@@ -502,8 +502,11 @@ static int addrconf_fixup_forwarding(struct ctl_table *table, int *p, int old) ...@@ -502,8 +502,11 @@ static int addrconf_fixup_forwarding(struct ctl_table *table, int *p, int old)
if (p == &net->ipv6.devconf_dflt->forwarding) if (p == &net->ipv6.devconf_dflt->forwarding)
return 0; return 0;
if (!rtnl_trylock()) if (!rtnl_trylock()) {
/* Restore the original values before restarting */
*p = old;
return restart_syscall(); return restart_syscall();
}
if (p == &net->ipv6.devconf_all->forwarding) { if (p == &net->ipv6.devconf_all->forwarding) {
__s32 newf = 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, ...@@ -4042,12 +4045,15 @@ int addrconf_sysctl_forward(ctl_table *ctl, int write,
{ {
int *valp = ctl->data; int *valp = ctl->data;
int val = *valp; int val = *valp;
loff_t pos = *ppos;
int ret; int ret;
ret = proc_dointvec(ctl, write, buffer, lenp, ppos); ret = proc_dointvec(ctl, write, buffer, lenp, ppos);
if (write) if (write)
ret = addrconf_fixup_forwarding(ctl, valp, val); ret = addrconf_fixup_forwarding(ctl, valp, val);
if (ret)
*ppos = pos;
return ret; return ret;
} }
...@@ -4089,8 +4095,11 @@ static int addrconf_disable_ipv6(struct ctl_table *table, int *p, int old) ...@@ -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) if (p == &net->ipv6.devconf_dflt->disable_ipv6)
return 0; return 0;
if (!rtnl_trylock()) if (!rtnl_trylock()) {
/* Restore the original values before restarting */
*p = old;
return restart_syscall(); return restart_syscall();
}
if (p == &net->ipv6.devconf_all->disable_ipv6) { if (p == &net->ipv6.devconf_all->disable_ipv6) {
__s32 newf = 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, ...@@ -4109,12 +4118,15 @@ int addrconf_sysctl_disable(ctl_table *ctl, int write,
{ {
int *valp = ctl->data; int *valp = ctl->data;
int val = *valp; int val = *valp;
loff_t pos = *ppos;
int ret; int ret;
ret = proc_dointvec(ctl, write, buffer, lenp, ppos); ret = proc_dointvec(ctl, write, buffer, lenp, ppos);
if (write) if (write)
ret = addrconf_disable_ipv6(ctl, valp, val); ret = addrconf_disable_ipv6(ctl, valp, val);
if (ret)
*ppos = pos;
return ret; return ret;
} }
......
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