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authorTejun Heo <htejun@gmail.com>2008-03-25 12:22:47 +0900
committerJeff Garzik <jgarzik@redhat.com>2008-04-17 15:44:16 -0400
commitf08048e94564d009b19038cfbdd800aa83e79c7f (patch)
tree4afa7e4fff9ec716e9acbe746a464cda5daec063
parentb558edddb1c42c70a30cfe494984d4be409f7b2b (diff)
libata: PCI device should be powered up before being accessed
PCI device should be powered up or powered up before its PCI regsiters are accessed. Although PCI configuration register access is allowed in D3hot, PCI device is free to reset its status when transiting from D3hot to D0 causing configuration data to change. Many libata SFF drivers which use ata_pci_init_one() read and update configuration registers before calling ata_pci_init_one() which enables the PCI device. Also, in resume paths, some drivers access registers without resuming the PCI device. This patch adds a call to pcim_enable_device() in init path if register is accessed before calling ata_pci_init_one() and make resume paths first resume PCI devices, access PCI configuration regiters then resume ATA host. While at it... * cmd640 was strange in that it set ->resume even when CONFIG_PM is not. This is by-product of minimal build fix. Updated. * In cs5530, Don't BUG() on reinit failure. Just whine and fail resume. Signed-off-by: Tejun Heo <htejun@gmail.com>
-rw-r--r--drivers/ata/pata_ali.c14
-rw-r--r--drivers/ata/pata_amd.c16
-rw-r--r--drivers/ata/pata_artop.c5
-rw-r--r--drivers/ata/pata_cmd640.c21
-rw-r--r--drivers/ata/pata_cmd64x.c15
-rw-r--r--drivers/ata/pata_cs5520.c15
-rw-r--r--drivers/ata/pata_cs5530.c18
-rw-r--r--drivers/ata/pata_hpt366.c14
-rw-r--r--drivers/ata/pata_hpt37x.c5
-rw-r--r--drivers/ata/pata_hpt3x2n.c5
-rw-r--r--drivers/ata/pata_it821x.c14
-rw-r--r--drivers/ata/pata_netcell.c5
-rw-r--r--drivers/ata/pata_ns87415.c6
-rw-r--r--drivers/ata/pata_optidma.c5
-rw-r--r--drivers/ata/pata_serverworks.c19
-rw-r--r--drivers/ata/pata_sil680.c13
-rw-r--r--drivers/ata/pata_sis.c6
-rw-r--r--drivers/ata/pata_sl82c105.c5
-rw-r--r--drivers/ata/pata_via.c14
19 files changed, 195 insertions, 20 deletions
diff --git a/drivers/ata/pata_ali.c b/drivers/ata/pata_ali.c
index 511a830b6256..3814aebefb2d 100644
--- a/drivers/ata/pata_ali.c
+++ b/drivers/ata/pata_ali.c
@@ -637,6 +637,11 @@ static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
const struct ata_port_info *ppi[] = { NULL, NULL };
u8 tmp;
struct pci_dev *isa_bridge;
+ int rc;
+
+ rc = pcim_enable_device(pdev);
+ if (rc)
+ return rc;
/*
* The chipset revision selects the driver operations and
@@ -672,8 +677,15 @@ static int ali_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
#ifdef CONFIG_PM
static int ali_reinit_one(struct pci_dev *pdev)
{
+ struct ata_host *host = dev_get_drvdata(&pdev->dev);
+ int rc;
+
+ rc = ata_pci_device_do_resume(pdev);
+ if (rc)
+ return rc;
ali_init_chipset(pdev);
- return ata_pci_device_resume(pdev);
+ ata_host_resume(host);
+ return 0;
}
#endif
diff --git a/drivers/ata/pata_amd.c b/drivers/ata/pata_amd.c
index 4b8d9b592ca4..5e1bc13a756b 100644
--- a/drivers/ata/pata_amd.c
+++ b/drivers/ata/pata_amd.c
@@ -659,10 +659,15 @@ static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
static int printed_version;
int type = id->driver_data;
u8 fifo;
+ int rc;
if (!printed_version++)
dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
+ rc = pcim_enable_device(pdev);
+ if (rc)
+ return rc;
+
pci_read_config_byte(pdev, 0x41, &fifo);
/* Check for AMD7409 without swdma errata and if found adjust type */
@@ -706,6 +711,13 @@ static int amd_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
#ifdef CONFIG_PM
static int amd_reinit_one(struct pci_dev *pdev)
{
+ struct ata_host *host = dev_get_drvdata(&pdev->dev);
+ int rc;
+
+ rc = ata_pci_device_do_resume(pdev);
+ if (rc)
+ return rc;
+
if (pdev->vendor == PCI_VENDOR_ID_AMD) {
u8 fifo;
pci_read_config_byte(pdev, 0x41, &fifo);
@@ -718,7 +730,9 @@ static int amd_reinit_one(struct pci_dev *pdev)
pdev->device == PCI_DEVICE_ID_AMD_COBRA_7401)
ata_pci_clear_simplex(pdev);
}
- return ata_pci_device_resume(pdev);
+
+ ata_host_resume(host);
+ return 0;
}
#endif
diff --git a/drivers/ata/pata_artop.c b/drivers/ata/pata_artop.c
index d4218310327b..2f8148016971 100644
--- a/drivers/ata/pata_artop.c
+++ b/drivers/ata/pata_artop.c
@@ -446,11 +446,16 @@ static int artop_init_one (struct pci_dev *pdev, const struct pci_device_id *id)
.port_ops = &artop6260_ops,
};
const struct ata_port_info *ppi[] = { NULL, NULL };
+ int rc;
if (!printed_version++)
dev_printk(KERN_DEBUG, &pdev->dev,
"version " DRV_VERSION "\n");
+ rc = pcim_enable_device(pdev);
+ if (rc)
+ return rc;
+
if (id->driver_data == 0) { /* 6210 variant */
ppi[0] = &info_6210;
ppi[1] = &ata_dummy_port_info;
diff --git a/drivers/ata/pata_cmd640.c b/drivers/ata/pata_cmd640.c
index 43d198f90968..0ef1d1ded1f8 100644
--- a/drivers/ata/pata_cmd640.c
+++ b/drivers/ata/pata_cmd640.c
@@ -254,20 +254,31 @@ static int cmd640_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
.port_ops = &cmd640_port_ops
};
const struct ata_port_info *ppi[] = { &info, NULL };
+ int rc;
+
+ rc = pcim_enable_device(pdev);
+ if (rc)
+ return rc;
cmd640_hardware_init(pdev);
+
return ata_pci_init_one(pdev, ppi);
}
+#ifdef CONFIG_PM
static int cmd640_reinit_one(struct pci_dev *pdev)
{
+ struct ata_host *host = dev_get_drvdata(&pdev->dev);
+ int rc;
+
+ rc = ata_pci_device_do_resume(pdev);
+ if (rc)
+ return rc;
cmd640_hardware_init(pdev);
-#ifdef CONFIG_PM
- return ata_pci_device_resume(pdev);
-#else
+ ata_host_resume(host);
return 0;
-#endif
}
+#endif
static const struct pci_device_id cmd640[] = {
{ PCI_VDEVICE(CMD, 0x640), 0 },
@@ -281,8 +292,8 @@ static struct pci_driver cmd640_pci_driver = {
.remove = ata_pci_remove_one,
#ifdef CONFIG_PM
.suspend = ata_pci_device_suspend,
-#endif
.resume = cmd640_reinit_one,
+#endif
};
static int __init cmd640_init(void)
diff --git a/drivers/ata/pata_cmd64x.c b/drivers/ata/pata_cmd64x.c
index 7acbbd9ee469..1c9a8d97f874 100644
--- a/drivers/ata/pata_cmd64x.c
+++ b/drivers/ata/pata_cmd64x.c
@@ -435,6 +435,11 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
};
const struct ata_port_info *ppi[] = { &cmd_info[id->driver_data], NULL };
u8 mrdmode;
+ int rc;
+
+ rc = pcim_enable_device(pdev);
+ if (rc)
+ return rc;
pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class_rev);
class_rev &= 0xFF;
@@ -470,7 +475,14 @@ static int cmd64x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
#ifdef CONFIG_PM
static int cmd64x_reinit_one(struct pci_dev *pdev)
{
+ struct ata_host *host = dev_get_drvdata(&pdev->dev);
u8 mrdmode;
+ int rc;
+
+ rc = ata_pci_device_do_resume(pdev);
+ if (rc)
+ return rc;
+
pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 64);
pci_read_config_byte(pdev, MRDMODE, &mrdmode);
mrdmode &= ~ 0x30; /* IRQ set up */
@@ -479,7 +491,8 @@ static int cmd64x_reinit_one(struct pci_dev *pdev)
#ifdef CONFIG_PPC
pci_write_config_byte(pdev, UDIDETCR0, 0xF0);
#endif
- return ata_pci_device_resume(pdev);
+ ata_host_resume(host);
+ return 0;
}
#endif
diff --git a/drivers/ata/pata_cs5520.c b/drivers/ata/pata_cs5520.c
index 7ed279b0a12e..dd6b2355fcdc 100644
--- a/drivers/ata/pata_cs5520.c
+++ b/drivers/ata/pata_cs5520.c
@@ -203,6 +203,10 @@ static int __devinit cs5520_init_one(struct pci_dev *pdev, const struct pci_devi
struct ata_ioports *ioaddr;
int i, rc;
+ rc = pcim_enable_device(pdev);
+ if (rc)
+ return rc;
+
/* IDE port enable bits */
pci_read_config_byte(pdev, 0x60, &pcicfg);
@@ -310,11 +314,20 @@ static int __devinit cs5520_init_one(struct pci_dev *pdev, const struct pci_devi
static int cs5520_reinit_one(struct pci_dev *pdev)
{
+ struct ata_host *host = dev_get_drvdata(&pdev->dev);
u8 pcicfg;
+ int rc;
+
+ rc = ata_pci_device_do_resume(pdev);
+ if (rc)
+ return rc;
+
pci_read_config_byte(pdev, 0x60, &pcicfg);
if ((pcicfg & 0x40) == 0)
pci_write_config_byte(pdev, 0x60, pcicfg | 0x40);
- return ata_pci_device_resume(pdev);
+
+ ata_host_resume(host);
+ return 0;
}
/**
diff --git a/drivers/ata/pata_cs5530.c b/drivers/ata/pata_cs5530.c
index e1818fdd9159..f876aeddf1a1 100644
--- a/drivers/ata/pata_cs5530.c
+++ b/drivers/ata/pata_cs5530.c
@@ -349,6 +349,11 @@ static int cs5530_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
.port_ops = &cs5530_port_ops
};
const struct ata_port_info *ppi[] = { &info, NULL };
+ int rc;
+
+ rc = pcim_enable_device(pdev);
+ if (rc)
+ return rc;
/* Chip initialisation */
if (cs5530_init_chip())
@@ -364,10 +369,19 @@ static int cs5530_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
#ifdef CONFIG_PM
static int cs5530_reinit_one(struct pci_dev *pdev)
{
+ struct ata_host *host = dev_get_drvdata(&pdev->dev);
+ int rc;
+
+ rc = ata_pci_device_do_resume(pdev);
+ if (rc)
+ return rc;
+
/* If we fail on resume we are doomed */
if (cs5530_init_chip())
- BUG();
- return ata_pci_device_resume(pdev);
+ return -EIO;
+
+ ata_host_resume(host);
+ return 0;
}
#endif /* CONFIG_PM */
diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c
index a742efa0da2b..a82089048f58 100644
--- a/drivers/ata/pata_hpt366.c
+++ b/drivers/ata/pata_hpt366.c
@@ -402,6 +402,11 @@ static int hpt36x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
u32 class_rev;
u32 reg1;
+ int rc;
+
+ rc = pcim_enable_device(dev);
+ if (rc)
+ return rc;
pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
class_rev &= 0xFF;
@@ -435,8 +440,15 @@ static int hpt36x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
#ifdef CONFIG_PM
static int hpt36x_reinit_one(struct pci_dev *dev)
{
+ struct ata_host *host = dev_get_drvdata(&dev->dev);
+ int rc;
+
+ rc = ata_pci_device_do_resume(dev);
+ if (rc)
+ return rc;
hpt36x_init_chipset(dev);
- return ata_pci_device_resume(dev);
+ ata_host_resume(host);
+ return 0;
}
#endif
diff --git a/drivers/ata/pata_hpt37x.c b/drivers/ata/pata_hpt37x.c
index 9a10878b2ad8..2ddcd07a7518 100644
--- a/drivers/ata/pata_hpt37x.c
+++ b/drivers/ata/pata_hpt37x.c
@@ -966,6 +966,11 @@ static int hpt37x_init_one(struct pci_dev *dev, const struct pci_device_id *id)
const struct hpt_chip *chip_table;
int clock_slot;
+ int rc;
+
+ rc = pcim_enable_device(dev);
+ if (rc)
+ return rc;
pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
class_rev &= 0xFF;
diff --git a/drivers/ata/pata_hpt3x2n.c b/drivers/ata/pata_hpt3x2n.c
index 9f1c084f846f..3a517cb9bd3e 100644
--- a/drivers/ata/pata_hpt3x2n.c
+++ b/drivers/ata/pata_hpt3x2n.c
@@ -505,6 +505,11 @@ static int hpt3x2n_init_one(struct pci_dev *dev, const struct pci_device_id *id)
unsigned int f_low, f_high;
int adjust;
unsigned long iobase = pci_resource_start(dev, 4);
+ int rc;
+
+ rc = pcim_enable_device(dev);
+ if (rc)
+ return rc;
pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
class_rev &= 0xFF;
diff --git a/drivers/ata/pata_it821x.c b/drivers/ata/pata_it821x.c
index 257951d03dbb..6bdbb7140dfa 100644
--- a/drivers/ata/pata_it821x.c
+++ b/drivers/ata/pata_it821x.c
@@ -759,6 +759,11 @@ static int it821x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
const struct ata_port_info *ppi[] = { NULL, NULL };
static char *mode[2] = { "pass through", "smart" };
+ int rc;
+
+ rc = pcim_enable_device(pdev);
+ if (rc)
+ return rc;
/* Force the card into bypass mode if so requested */
if (it8212_noraid) {
@@ -780,10 +785,17 @@ static int it821x_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
#ifdef CONFIG_PM
static int it821x_reinit_one(struct pci_dev *pdev)
{
+ struct ata_host *host = dev_get_drvdata(&pdev->dev);
+ int rc;
+
+ rc = ata_pci_device_do_resume(pdev);
+ if (rc)
+ return rc;
/* Resume - turn raid back off if need be */
if (it8212_noraid)
it821x_disable_raid(pdev);
- return ata_pci_device_resume(pdev);
+ ata_host_resume(host);
+ return rc;
}
#endif
diff --git a/drivers/ata/pata_netcell.c b/drivers/ata/pata_netcell.c
index 25c922abd554..0e4a08e15209 100644
--- a/drivers/ata/pata_netcell.c
+++ b/drivers/ata/pata_netcell.c
@@ -100,11 +100,16 @@ static int netcell_init_one (struct pci_dev *pdev, const struct pci_device_id *e
.port_ops = &netcell_ops,
};
const struct ata_port_info *port_info[] = { &info, NULL };
+ int rc;
if (!printed_version++)
dev_printk(KERN_DEBUG, &pdev->dev,
"version " DRV_VERSION "\n");
+ rc = pcim_enable_device(pdev);
+ if (rc)
+ return rc;
+
/* Any chip specific setup/optimisation/messages here */
ata_pci_clear_simplex(pdev);
diff --git a/drivers/ata/pata_ns87415.c b/drivers/ata/pata_ns87415.c
index d0e2e50823b1..93eb958cb0c9 100644
--- a/drivers/ata/pata_ns87415.c
+++ b/drivers/ata/pata_ns87415.c
@@ -410,6 +410,7 @@ static int ns87415_init_one (struct pci_dev *pdev, const struct pci_device_id *e
.port_ops = &ns87415_pata_ops,
};
const struct ata_port_info *ppi[] = { &info, NULL };
+ int rc;
#if defined(CONFIG_SUPERIO)
static const struct ata_port_info info87560 = {
.sht = &ns87415_sht,
@@ -425,6 +426,11 @@ static int ns87415_init_one (struct pci_dev *pdev, const struct pci_device_id *e
if (!printed_version++)
dev_printk(KERN_DEBUG, &pdev->dev,
"version " DRV_VERSION "\n");
+
+ rc = pcim_enable_device(pdev);
+ if (rc)
+ return rc;
+
/* Select 512 byte sectors */
pci_write_config_byte(pdev, 0x55, 0xEE);
/* Select PIO0 8bit clocking */
diff --git a/drivers/ata/pata_optidma.c b/drivers/ata/pata_optidma.c
index f9b485a487ae..be8c421dc2aa 100644
--- a/drivers/ata/pata_optidma.c
+++ b/drivers/ata/pata_optidma.c
@@ -497,10 +497,15 @@ static int optidma_init_one(struct pci_dev *dev, const struct pci_device_id *id)
};
const struct ata_port_info *ppi[] = { &info_82c700, NULL };
static int printed_version;
+ int rc;
if (!printed_version++)
dev_printk(KERN_DEBUG, &dev->dev, "version " DRV_VERSION "\n");
+ rc = pcim_enable_device(dev);
+ if (rc)
+ return rc;
+
/* Fixed location chipset magic */
inw(0x1F1);
inw(0x1F1);
diff --git a/drivers/ata/pata_serverworks.c b/drivers/ata/pata_serverworks.c
index a589c0fa0dbb..6702df37cfed 100644
--- a/drivers/ata/pata_serverworks.c
+++ b/drivers/ata/pata_serverworks.c
@@ -498,6 +498,11 @@ static int serverworks_init_one(struct pci_dev *pdev, const struct pci_device_id
}
};
const struct ata_port_info *ppi[] = { &info[id->driver_data], NULL };
+ int rc;
+
+ rc = pcim_enable_device(pdev);
+ if (rc)
+ return rc;
/* Force master latency timer to 64 PCI clocks */
pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x40);
@@ -535,11 +540,17 @@ static int serverworks_init_one(struct pci_dev *pdev, const struct pci_device_id
#ifdef CONFIG_PM
static int serverworks_reinit_one(struct pci_dev *pdev)
{
+ struct ata_host *host = dev_get_drvdata(&pdev->dev);
+ int rc;
+
+ rc = ata_pci_device_do_resume(pdev);
+ if (rc)
+ return rc;
+
/* Force master latency timer to 64 PCI clocks */
pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x40);
- switch (pdev->device)
- {
+ switch (pdev->device) {
case PCI_DEVICE_ID_SERVERWORKS_OSB4IDE:
serverworks_fixup_osb4(pdev);
break;
@@ -554,7 +565,9 @@ static int serverworks_reinit_one(struct pci_dev *pdev)
serverworks_fixup_ht1000(pdev);
break;
}
- return ata_pci_device_resume(pdev);
+
+ ata_host_resume(host);
+ return 0;
}
#endif
diff --git a/drivers/ata/pata_sil680.c b/drivers/ata/pata_sil680.c
index 7c5b2dd9a1a1..f4dc09718cab 100644
--- a/drivers/ata/pata_sil680.c
+++ b/drivers/ata/pata_sil680.c
@@ -346,6 +346,10 @@ static int __devinit sil680_init_one(struct pci_dev *pdev,
if (!printed_version++)
dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
+ rc = pcim_enable_device(pdev);
+ if (rc)
+ return rc;
+
switch (sil680_init_chip(pdev, &try_mmio)) {
case 0:
ppi[0] = &info_slow;
@@ -406,10 +410,15 @@ use_ioports:
#ifdef CONFIG_PM
static int sil680_reinit_one(struct pci_dev *pdev)
{
- int try_mmio;
+ struct ata_host *host = dev_get_drvdata(&pdev->dev);
+ int try_mmio, rc;
+ rc = ata_pci_device_do_resume(pdev);
+ if (rc)
+ return rc;
sil680_init_chip(pdev, &try_mmio);
- return ata_pci_device_resume(pdev);
+ ata_host_resume(host);
+ return 0;
}
#endif
diff --git a/drivers/ata/pata_sis.c b/drivers/ata/pata_sis.c
index dc7e91562e43..abda90f51247 100644
--- a/drivers/ata/pata_sis.c
+++ b/drivers/ata/pata_sis.c
@@ -862,6 +862,7 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
struct pci_dev *host = NULL;
struct sis_chipset *chipset = NULL;
struct sis_chipset *sets;
+ int rc;
static struct sis_chipset sis_chipsets[] = {
@@ -914,8 +915,11 @@ static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
dev_printk(KERN_DEBUG, &pdev->dev,
"version " DRV_VERSION "\n");
- /* We have to find the bridge first */
+ rc = pcim_enable_device(pdev);
+ if (rc)
+ return rc;
+ /* We have to find the bridge first */
for (sets = &sis_chipsets[0]; sets->device; sets++) {
host = pci_get_device(PCI_VENDOR_ID_SI, sets->device, NULL);
if (host != NULL) {
diff --git a/drivers/ata/pata_sl82c105.c b/drivers/ata/pata_sl82c105.c
index 81ef207f8265..6c37181341ea 100644
--- a/drivers/ata/pata_sl82c105.c
+++ b/drivers/ata/pata_sl82c105.c
@@ -344,6 +344,11 @@ static int sl82c105_init_one(struct pci_dev *dev, const struct pci_device_id *id
NULL };
u32 val;
int rev;
+ int rc;
+
+ rc = pcim_enable_device(dev);
+ if (rc)
+ return rc;
rev = sl82c105_bridge_revision(dev);
diff --git a/drivers/ata/pata_via.c b/drivers/ata/pata_via.c
index d119a68c388f..24430f70f00e 100644
--- a/drivers/ata/pata_via.c
+++ b/drivers/ata/pata_via.c
@@ -524,10 +524,15 @@ static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
static int printed_version;
u8 enable;
u32 timing;
+ int rc;
if (!printed_version++)
dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
+ rc = pcim_enable_device(pdev);
+ if (rc)
+ return rc;
+
/* To find out how the IDE will behave and what features we
actually have to look at the bridge not the IDE controller */
for (config = via_isa_bridges; config->id; config++)
@@ -615,6 +620,11 @@ static int via_reinit_one(struct pci_dev *pdev)
u32 timing;
struct ata_host *host = dev_get_drvdata(&pdev->dev);
const struct via_isa_bridge *config = host->private_data;
+ int rc;
+
+ rc = ata_pci_device_do_resume(pdev);
+ if (rc)
+ return rc;
via_config_fifo(pdev, config->flags);
@@ -630,7 +640,9 @@ static int via_reinit_one(struct pci_dev *pdev)
timing &= ~0x80008;
pci_write_config_dword(pdev, 0x50, timing);
}
- return ata_pci_device_resume(pdev);
+
+ ata_host_resume(host);
+ return 0;
}
#endif