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-rw-r--r--drivers/char/Kconfig4
-rw-r--r--drivers/char/agp/amd64-agp.c10
-rw-r--r--drivers/char/agp/backend.c13
-rw-r--r--drivers/char/agp/hp-agp.c6
-rw-r--r--drivers/char/agp/intel-agp.c6
-rw-r--r--drivers/char/agp/uninorth-agp.c77
-rw-r--r--drivers/char/efirtc.c1
-rw-r--r--drivers/char/hvc_console.c1
-rw-r--r--drivers/char/hvc_iucv.c2
-rw-r--r--drivers/char/hw_random/core.c5
-rw-r--r--drivers/char/hw_random/virtio-rng.c6
-rw-r--r--drivers/char/ipmi/ipmi_kcs_sm.c2
-rw-r--r--drivers/char/ipmi/ipmi_si_intf.c118
-rw-r--r--drivers/char/keyboard.c10
-rw-r--r--drivers/char/lp.c115
-rw-r--r--drivers/char/mem.c161
-rw-r--r--drivers/char/misc.c26
-rw-r--r--drivers/char/nozomi.c50
-rw-r--r--drivers/char/nvram.c14
-rw-r--r--drivers/char/nwflash.c1
-rw-r--r--drivers/char/random.c10
-rw-r--r--drivers/char/sonypi.c60
-rw-r--r--drivers/char/sysrq.c2
-rw-r--r--drivers/char/toshiba.c12
-rw-r--r--drivers/char/tty_io.c4
-rw-r--r--drivers/char/vt.c50
26 files changed, 467 insertions, 299 deletions
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 6f31c947210..e023682be2c 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -502,7 +502,7 @@ config BRIQ_PANEL
config BFIN_OTP
tristate "Blackfin On-Chip OTP Memory Support"
- depends on BLACKFIN && (BF52x || BF54x)
+ depends on BLACKFIN && (BF51x || BF52x || BF54x)
default y
help
If you say Y here, you will get support for a character device
@@ -669,7 +669,7 @@ config VIRTIO_CONSOLE
config HVCS
tristate "IBM Hypervisor Virtual Console Server support"
- depends on PPC_PSERIES
+ depends on PPC_PSERIES && HVC_CONSOLE
help
Partitionable IBM Power5 ppc64 machines allow hosting of
firmware virtual consoles from one Linux partition by
diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c
index 2fb2e6cc322..1afb8968a34 100644
--- a/drivers/char/agp/amd64-agp.c
+++ b/drivers/char/agp/amd64-agp.c
@@ -728,6 +728,10 @@ int __init agp_amd64_init(void)
if (agp_off)
return -EINVAL;
+
+ if (gart_iommu_aperture)
+ return agp_bridges_found ? 0 : -ENODEV;
+
err = pci_register_driver(&agp_amd64_pci_driver);
if (err < 0)
return err;
@@ -766,17 +770,15 @@ int __init agp_amd64_init(void)
static void __exit agp_amd64_cleanup(void)
{
+ if (gart_iommu_aperture)
+ return;
if (aperture_resource)
release_resource(aperture_resource);
pci_unregister_driver(&agp_amd64_pci_driver);
}
-/* On AMD64 the PCI driver needs to initialize this driver early
- for the IOMMU, so it has to be called via a backdoor. */
-#ifndef CONFIG_GART_IOMMU
module_init(agp_amd64_init);
module_exit(agp_amd64_cleanup);
-#endif
MODULE_AUTHOR("Dave Jones <davej@redhat.com>, Andi Kleen");
module_param(agp_try_unsupported, bool, 0);
diff --git a/drivers/char/agp/backend.c b/drivers/char/agp/backend.c
index a56ca080e10..c3ab46da51a 100644
--- a/drivers/char/agp/backend.c
+++ b/drivers/char/agp/backend.c
@@ -285,18 +285,22 @@ int agp_add_bridge(struct agp_bridge_data *bridge)
{
int error;
- if (agp_off)
- return -ENODEV;
+ if (agp_off) {
+ error = -ENODEV;
+ goto err_put_bridge;
+ }
if (!bridge->dev) {
printk (KERN_DEBUG PFX "Erk, registering with no pci_dev!\n");
- return -EINVAL;
+ error = -EINVAL;
+ goto err_put_bridge;
}
/* Grab reference on the chipset driver. */
if (!try_module_get(bridge->driver->owner)) {
dev_info(&bridge->dev->dev, "can't lock chipset driver\n");
- return -EINVAL;
+ error = -EINVAL;
+ goto err_put_bridge;
}
error = agp_backend_initialize(bridge);
@@ -326,6 +330,7 @@ frontend_err:
agp_backend_cleanup(bridge);
err_out:
module_put(bridge->driver->owner);
+err_put_bridge:
agp_put_bridge(bridge);
return error;
}
diff --git a/drivers/char/agp/hp-agp.c b/drivers/char/agp/hp-agp.c
index 9047b271465..58752b70efe 100644
--- a/drivers/char/agp/hp-agp.c
+++ b/drivers/char/agp/hp-agp.c
@@ -488,9 +488,8 @@ zx1_gart_probe (acpi_handle obj, u32 depth, void *context, void **ret)
handle = obj;
do {
status = acpi_get_object_info(handle, &info);
- if (ACPI_SUCCESS(status)) {
+ if (ACPI_SUCCESS(status) && (info->valid & ACPI_VALID_HID)) {
/* TBD check _CID also */
- info->hardware_id.string[sizeof(info->hardware_id.length)-1] = '\0';
match = (strcmp(info->hardware_id.string, "HWP0001") == 0);
kfree(info);
if (match) {
@@ -509,6 +508,9 @@ zx1_gart_probe (acpi_handle obj, u32 depth, void *context, void **ret)
handle = parent;
} while (ACPI_SUCCESS(status));
+ if (ACPI_FAILURE(status))
+ return AE_OK; /* found no enclosing IOC */
+
if (hp_zx1_setup(sba_hpa + HP_ZX1_IOC_OFFSET, lba_hpa))
return AE_OK;
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index 30c36ac2cd0..3999a5f25f3 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -2460,10 +2460,14 @@ static int __devinit agp_intel_probe(struct pci_dev *pdev,
&bridge->mode);
}
- if (bridge->driver->mask_memory == intel_i965_mask_memory)
+ if (bridge->driver->mask_memory == intel_i965_mask_memory) {
if (pci_set_dma_mask(intel_private.pcidev, DMA_BIT_MASK(36)))
dev_err(&intel_private.pcidev->dev,
"set gfx device dma mask 36bit failed!\n");
+ else
+ pci_set_consistent_dma_mask(intel_private.pcidev,
+ DMA_BIT_MASK(36));
+ }
pci_set_drvdata(pdev, bridge);
return agp_add_bridge(bridge);
diff --git a/drivers/char/agp/uninorth-agp.c b/drivers/char/agp/uninorth-agp.c
index 703959eba45..d89da4ac061 100644
--- a/drivers/char/agp/uninorth-agp.c
+++ b/drivers/char/agp/uninorth-agp.c
@@ -144,16 +144,13 @@ static int uninorth_configure(void)
return 0;
}
-static int uninorth_insert_memory(struct agp_memory *mem, off_t pg_start,
- int type)
+static int uninorth_insert_memory(struct agp_memory *mem, off_t pg_start, int type)
{
- int i, j, num_entries;
+ int i, num_entries;
void *temp;
+ u32 *gp;
int mask_type;
- temp = agp_bridge->current_size;
- num_entries = A_SIZE_32(temp)->num_entries;
-
if (type != mem->type)
return -EINVAL;
@@ -163,49 +160,12 @@ static int uninorth_insert_memory(struct agp_memory *mem, off_t pg_start,
return -EINVAL;
}
- if ((pg_start + mem->page_count) > num_entries)
- return -EINVAL;
-
- j = pg_start;
-
- while (j < (pg_start + mem->page_count)) {
- if (agp_bridge->gatt_table[j])
- return -EBUSY;
- j++;
- }
-
- for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
- agp_bridge->gatt_table[j] =
- cpu_to_le32((page_to_phys(mem->pages[i]) & 0xFFFFF000UL) | 0x1UL);
- flush_dcache_range((unsigned long)__va(page_to_phys(mem->pages[i])),
- (unsigned long)__va(page_to_phys(mem->pages[i]))+0x1000);
- }
- (void)in_le32((volatile u32*)&agp_bridge->gatt_table[pg_start]);
- mb();
-
- uninorth_tlbflush(mem);
- return 0;
-}
-
-static int u3_insert_memory(struct agp_memory *mem, off_t pg_start, int type)
-{
- int i, num_entries;
- void *temp;
- u32 *gp;
- int mask_type;
+ if (mem->page_count == 0)
+ return 0;
temp = agp_bridge->current_size;
num_entries = A_SIZE_32(temp)->num_entries;
- if (type != mem->type)
- return -EINVAL;
-
- mask_type = agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type);
- if (mask_type != 0) {
- /* We know nothing of memory types */
- return -EINVAL;
- }
-
if ((pg_start + mem->page_count) > num_entries)
return -EINVAL;
@@ -213,14 +173,18 @@ static int u3_insert_memory(struct agp_memory *mem, off_t pg_start, int type)
for (i = 0; i < mem->page_count; ++i) {
if (gp[i]) {
dev_info(&agp_bridge->dev->dev,
- "u3_insert_memory: entry 0x%x occupied (%x)\n",
+ "uninorth_insert_memory: entry 0x%x occupied (%x)\n",
i, gp[i]);
return -EBUSY;
}
}
for (i = 0; i < mem->page_count; i++) {
- gp[i] = (page_to_phys(mem->pages[i]) >> PAGE_SHIFT) | 0x80000000UL;
+ if (is_u3)
+ gp[i] = (page_to_phys(mem->pages[i]) >> PAGE_SHIFT) | 0x80000000UL;
+ else
+ gp[i] = cpu_to_le32((page_to_phys(mem->pages[i]) & 0xFFFFF000UL) |
+ 0x1UL);
flush_dcache_range((unsigned long)__va(page_to_phys(mem->pages[i])),
(unsigned long)__va(page_to_phys(mem->pages[i]))+0x1000);
}
@@ -230,14 +194,23 @@ static int u3_insert_memory(struct agp_memory *mem, off_t pg_start, int type)
return 0;
}
-int u3_remove_memory(struct agp_memory *mem, off_t pg_start, int type)
+int uninorth_remove_memory(struct agp_memory *mem, off_t pg_start, int type)
{
size_t i;
u32 *gp;
+ int mask_type;
+
+ if (type != mem->type)
+ return -EINVAL;
- if (type != 0 || mem->type != 0)
+ mask_type = agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type);
+ if (mask_type != 0) {
/* We know nothing of memory types */
return -EINVAL;
+ }
+
+ if (mem->page_count == 0)
+ return 0;
gp = (u32 *) &agp_bridge->gatt_table[pg_start];
for (i = 0; i < mem->page_count; ++i)
@@ -536,7 +509,7 @@ const struct agp_bridge_driver uninorth_agp_driver = {
.create_gatt_table = uninorth_create_gatt_table,
.free_gatt_table = uninorth_free_gatt_table,
.insert_memory = uninorth_insert_memory,
- .remove_memory = agp_generic_remove_memory,
+ .remove_memory = uninorth_remove_memory,
.alloc_by_type = agp_generic_alloc_by_type,
.free_by_type = agp_generic_free_by_type,
.agp_alloc_page = agp_generic_alloc_page,
@@ -562,8 +535,8 @@ const struct agp_bridge_driver u3_agp_driver = {
.agp_enable = uninorth_agp_enable,
.create_gatt_table = uninorth_create_gatt_table,
.free_gatt_table = uninorth_free_gatt_table,
- .insert_memory = u3_insert_memory,
- .remove_memory = u3_remove_memory,
+ .insert_memory = uninorth_insert_memory,
+ .remove_memory = uninorth_remove_memory,
.alloc_by_type = agp_generic_alloc_by_type,
.free_by_type = agp_generic_free_by_type,
.agp_alloc_page = agp_generic_alloc_page,
diff --git a/drivers/char/efirtc.c b/drivers/char/efirtc.c
index 26a47dc88f6..53c524e7b82 100644
--- a/drivers/char/efirtc.c
+++ b/drivers/char/efirtc.c
@@ -285,6 +285,7 @@ static const struct file_operations efi_rtc_fops = {
.unlocked_ioctl = efi_rtc_ioctl,
.open = efi_rtc_open,
.release = efi_rtc_close,
+ .llseek = no_llseek,
};
static struct miscdevice efi_rtc_dev= {
diff --git a/drivers/char/hvc_console.c b/drivers/char/hvc_console.c
index a632f25f144..416d3423150 100644
--- a/drivers/char/hvc_console.c
+++ b/drivers/char/hvc_console.c
@@ -832,6 +832,7 @@ int hvc_remove(struct hvc_struct *hp)
tty_hangup(tty);
return 0;
}
+EXPORT_SYMBOL_GPL(hvc_remove);
/* Driver initialization: called as soon as someone uses hvc_alloc(). */
static int hvc_init(void)
diff --git a/drivers/char/hvc_iucv.c b/drivers/char/hvc_iucv.c
index b8a5d654d3d..fe62bd0e17b 100644
--- a/drivers/char/hvc_iucv.c
+++ b/drivers/char/hvc_iucv.c
@@ -931,7 +931,7 @@ static struct hv_ops hvc_iucv_ops = {
};
/* Suspend / resume device operations */
-static struct dev_pm_ops hvc_iucv_pm_ops = {
+static const struct dev_pm_ops hvc_iucv_pm_ops = {
.freeze = hvc_iucv_pm_freeze,
.thaw = hvc_iucv_pm_restore_thaw,
.restore = hvc_iucv_pm_restore_thaw,
diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index e989f67bb61..3d9c61e5acb 100644
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -158,10 +158,11 @@ static ssize_t rng_dev_read(struct file *filp, char __user *buf,
goto out;
}
}
-out_unlock:
- mutex_unlock(&rng_mutex);
out:
return ret ? : err;
+out_unlock:
+ mutex_unlock(&rng_mutex);
+ goto out;
}
diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c
index bdaef8e9402..64fe0a793ef 100644
--- a/drivers/char/hw_random/virtio-rng.c
+++ b/drivers/char/hw_random/virtio-rng.c
@@ -114,7 +114,7 @@ static struct virtio_device_id id_table[] = {
{ 0 },
};
-static struct virtio_driver virtio_rng = {
+static struct virtio_driver virtio_rng_driver = {
.driver.name = KBUILD_MODNAME,
.driver.owner = THIS_MODULE,
.id_table = id_table,
@@ -124,12 +124,12 @@ static struct virtio_driver virtio_rng = {
static int __init init(void)
{
- return register_virtio_driver(&virtio_rng);
+ return register_virtio_driver(&virtio_rng_driver);
}
static void __exit fini(void)
{
- unregister_virtio_driver(&virtio_rng);
+ unregister_virtio_driver(&virtio_rng_driver);
}
module_init(init);
module_exit(fini);
diff --git a/drivers/char/ipmi/ipmi_kcs_sm.c b/drivers/char/ipmi/ipmi_kcs_sm.c
index 80704875794..cf82fedae09 100644
--- a/drivers/char/ipmi/ipmi_kcs_sm.c
+++ b/drivers/char/ipmi/ipmi_kcs_sm.c
@@ -370,7 +370,7 @@ static enum si_sm_result kcs_event(struct si_sm_data *kcs, long time)
return SI_SM_IDLE;
case KCS_START_OP:
- if (state != KCS_IDLE) {
+ if (state != KCS_IDLE_STATE) {
start_error_recovery(kcs,
"State machine not idle at start");
break;
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index d2e698096ac..176f1751237 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -64,6 +64,7 @@
#include <linux/dmi.h>
#include <linux/string.h>
#include <linux/ctype.h>
+#include <linux/pnp.h>
#ifdef CONFIG_PPC_OF
#include <linux/of_device.h>
@@ -1919,7 +1920,7 @@ struct SPMITable {
s8 spmi_id[1]; /* A '\0' terminated array starts here. */
};
-static __devinit int try_init_acpi(struct SPMITable *spmi)
+static __devinit int try_init_spmi(struct SPMITable *spmi)
{
struct smi_info *info;
u8 addr_space;
@@ -1940,7 +1941,7 @@ static __devinit int try_init_acpi(struct SPMITable *spmi)
return -ENOMEM;
}
- info->addr_source = "ACPI";
+ info->addr_source = "SPMI";
/* Figure out the interface type. */
switch (spmi->InterfaceType) {
@@ -2002,7 +2003,7 @@ static __devinit int try_init_acpi(struct SPMITable *spmi)
return 0;
}
-static __devinit void acpi_find_bmc(void)
+static __devinit void spmi_find_bmc(void)
{
acpi_status status;
struct SPMITable *spmi;
@@ -2020,9 +2021,106 @@ static __devinit void acpi_find_bmc(void)
if (status != AE_OK)
return;
- try_init_acpi(spmi);
+ try_init_spmi(spmi);
}
}
+
+static int __devinit ipmi_pnp_probe(struct pnp_dev *dev,
+ const struct pnp_device_id *dev_id)
+{
+ struct acpi_device *acpi_dev;
+ struct smi_info *info;
+ acpi_handle handle;
+ acpi_status status;
+ unsigned long long tmp;
+
+ acpi_dev = pnp_acpi_device(dev);
+ if (!acpi_dev)
+ return -ENODEV;
+
+ info = kzalloc(sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
+ info->addr_source = "ACPI";
+
+ handle = acpi_dev->handle;
+
+ /* _IFT tells us the interface type: KCS, BT, etc */
+ status = acpi_evaluate_integer(handle, "_IFT", NULL, &tmp);
+ if (ACPI_FAILURE(status))
+ goto err_free;
+
+ switch (tmp) {
+ case 1:
+ info->si_type = SI_KCS;
+ break;
+ case 2:
+ info->si_type = SI_SMIC;
+ break;
+ case 3:
+ info->si_type = SI_BT;
+ break;
+ default:
+ dev_info(&dev->dev, "unknown interface type %lld\n", tmp);
+ goto err_free;
+ }
+
+ if (pnp_port_valid(dev, 0)) {
+ info->io_setup = port_setup;
+ info->io.addr_type = IPMI_IO_ADDR_SPACE;
+ info->io.addr_data = pnp_port_start(dev, 0);
+ } else if (pnp_mem_valid(dev, 0)) {
+ info->io_setup = mem_setup;
+ info->io.addr_type = IPMI_MEM_ADDR_SPACE;
+ info->io.addr_data = pnp_mem_start(dev, 0);
+ } else {
+ dev_err(&dev->dev, "no I/O or memory address\n");
+ goto err_free;
+ }
+
+ info->io.regspacing = DEFAULT_REGSPACING;
+ info->io.regsize = DEFAULT_REGSPACING;
+ info->io.regshift = 0;
+
+ /* If _GPE exists, use it; otherwise use standard interrupts */
+ status = acpi_evaluate_integer(handle, "_GPE", NULL, &tmp);
+ if (ACPI_SUCCESS(status)) {
+ info->irq = tmp;
+ info->irq_setup = acpi_gpe_irq_setup;
+ } else if (pnp_irq_valid(dev, 0)) {
+ info->irq = pnp_irq(dev, 0);
+ info->irq_setup = std_irq_setup;
+ }
+
+ info->dev = &acpi_dev->dev;
+ pnp_set_drvdata(dev, info);
+
+ return try_smi_init(info);
+
+err_free:
+ kfree(info);
+ return -EINVAL;
+}
+
+static void __devexit ipmi_pnp_remove(struct pnp_dev *dev)
+{
+ struct smi_info *info = pnp_get_drvdata(dev);
+
+ cleanup_one_si(info);
+}
+
+static const struct pnp_device_id pnp_dev_table[] = {
+ {"IPI0001", 0},
+ {"", 0},
+};
+
+static struct pnp_driver ipmi_pnp_driver = {
+ .name = DEVICE_NAME,
+ .probe = ipmi_pnp_probe,
+ .remove = __devexit_p(ipmi_pnp_remove),
+ .id_table = pnp_dev_table,
+};
#endif
#ifdef CONFIG_DMI
@@ -2202,7 +2300,6 @@ static int __devinit ipmi_pci_probe(struct pci_dev *pdev,
int rv;
int class_type = pdev->class & PCI_ERMC_CLASSCODE_TYPE_MASK;
struct smi_info *info;
- int first_reg_offset = 0;
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (!info)
@@ -2241,9 +2338,6 @@ static int __devinit ipmi_pci_probe(struct pci_dev *pdev,
info->addr_source_cleanup = ipmi_pci_cleanup;
info->addr_source_data = pdev;
- if (pdev->subsystem_vendor == PCI_HP_VENDOR_ID)
- first_reg_offset = 1;
-
if (pci_resource_flags(pdev, 0) & IORESOURCE_IO) {
info->io_setup = port_setup;
info->io.addr_type = IPMI_IO_ADDR_SPACE;
@@ -3108,7 +3202,10 @@ static __devinit int init_ipmi_si(void)
#endif
#ifdef CONFIG_ACPI
- acpi_find_bmc();
+ spmi_find_bmc();
+#endif
+#ifdef CONFIG_ACPI
+ pnp_register_driver(&ipmi_pnp_driver);
#endif
#ifdef CONFIG_PCI
@@ -3233,6 +3330,9 @@ static __exit void cleanup_ipmi_si(void)
#ifdef CONFIG_PCI
pci_unregister_driver(&ipmi_pci_driver);
#endif
+#ifdef CONFIG_ACPI
+ pnp_unregister_driver(&ipmi_pnp_driver);
+#endif
#ifdef CONFIG_PPC_OF
of_unregister_platform_driver(&ipmi_of_platform_driver);
diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
index 5619007e7e0..f706b1dffdb 100644
--- a/drivers/char/keyboard.c
+++ b/drivers/char/keyboard.c
@@ -233,7 +233,8 @@ int setkeycode(unsigned int scancode, unsigned int keycode)
}
/*
- * Making beeps and bells.
+ * Making beeps and bells. Note that we prefer beeps to bells, but when
+ * shutting the sound off we do both.
*/
static int kd_sound_helper(struct input_handle *handle, void *data)
@@ -242,9 +243,12 @@ static int kd_sound_helper(struct input_handle *handle, void *data)
struct input_dev *dev = handle->dev;
if (test_bit(EV_SND, dev->evbit)) {
- if (test_bit(SND_TONE, dev->sndbit))
+ if (test_bit(SND_TONE, dev->sndbit)) {
input_inject_event(handle, EV_SND, SND_TONE, *hz);
- if (test_bit(SND_BELL, handle->dev->sndbit))
+ if (*hz)
+ return 0;
+ }
+ if (test_bit(SND_BELL, dev->sndbit))
input_inject_event(handle, EV_SND, SND_BELL, *hz ? 1 : 0);
}
diff --git a/drivers/char/lp.c b/drivers/char/lp.c
index e444c2dba16..938a3a27388 100644
--- a/drivers/char/lp.c
+++ b/drivers/char/lp.c
@@ -127,6 +127,7 @@
#include <linux/wait.h>
#include <linux/jiffies.h>
#include <linux/smp_lock.h>
+#include <linux/compat.h>
#include <linux/parport.h>
#undef LP_STATS
@@ -571,13 +572,11 @@ static int lp_release(struct inode * inode, struct file * file)
return 0;
}
-static int lp_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+static int lp_do_ioctl(unsigned int minor, unsigned int cmd,
+ unsigned long arg, void __user *argp)
{
- unsigned int minor = iminor(inode);
int status;
int retval = 0;
- void __user *argp = (void __user *)arg;
#ifdef LP_DEBUG
printk(KERN_DEBUG "lp%d ioctl, cmd: 0x%x, arg: 0x%lx\n", minor, cmd, arg);
@@ -587,9 +586,6 @@ static int lp_ioctl(struct inode *inode, struct file *file,
if ((LP_F(minor) & LP_EXIST) == 0)
return -ENODEV;
switch ( cmd ) {
- struct timeval par_timeout;
- long to_jiffies;
-
case LPTIME:
LP_TIME(minor) = arg * HZ/100;
break;
@@ -652,34 +648,101 @@ static int lp_ioctl(struct inode *inode, struct file *file,
return -EFAULT;
break;
- case LPSETTIMEOUT:
- if (copy_from_user (&par_timeout, argp,
- sizeof (struct timeval))) {
- return -EFAULT;
- }
- /* Convert to jiffies, place in lp_table */
- if ((par_timeout.tv_sec < 0) ||
- (par_timeout.tv_usec < 0)) {
- return -EINVAL;
- }
- to_jiffies = DIV_ROUND_UP(par_timeout.tv_usec, 1000000/HZ);
- to_jiffies += par_timeout.tv_sec * (long) HZ;
- if (to_jiffies <= 0) {
- return -EINVAL;
- }
- lp_table[minor].timeout = to_jiffies;
- break;
-
default:
retval = -EINVAL;
}
return retval;
}
+static int lp_set_timeout(unsigned int minor, struct timeval *par_timeout)
+{
+ long to_jiffies;
+
+ /* Convert to jiffies, place in lp_table */
+ if ((par_timeout->tv_sec < 0) ||
+ (par_timeout->tv_usec < 0)) {
+ return -EINVAL;
+ }
+ to_jiffies = DIV_ROUND_UP(par_timeout->tv_usec, 1000000/HZ);
+ to_jiffies += par_timeout->tv_sec * (long) HZ;
+ if (to_jiffies <= 0) {
+ return -EINVAL;
+ }
+ lp_table[minor].timeout = to_jiffies;
+ return 0;
+}
+
+static long lp_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ unsigned int minor;
+ struct timeval par_timeout;
+ int ret;
+
+ minor = iminor(file->f_path.dentry->d_inode);
+ lock_kernel();
+ switch (cmd) {
+ case LPSETTIMEOUT:
+ if (copy_from_user(&par_timeout, (void __user *)arg,
+ sizeof (struct timeval))) {
+ ret = -EFAULT;
+ break;
+ }
+ ret = lp_set_timeout(minor, &par_timeout);
+ break;
+ default:
+ ret = lp_do_ioctl(minor, cmd, arg, (void __user *)arg);
+ break;
+ }
+ unlock_kernel();
+
+ return ret;
+}
+
+#ifdef CONFIG_COMPAT
+static long lp_compat_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
+{
+ unsigned int minor;
+ struct timeval par_timeout;
+ struct compat_timeval __user *tc;
+ int ret;
+
+ minor = iminor(file->f_path.dentry->d_inode);
+ lock_kernel();
+ switch (cmd) {
+ case LPSETTIMEOUT:
+ tc = compat_ptr(arg);
+ if (get_user(par_timeout.tv_sec, &tc->tv_sec) ||
+ get_user(par_timeout.tv_usec, &tc->tv_usec)) {
+ ret = -EFAULT;
+ break;
+ }
+ ret = lp_set_timeout(minor, &par_timeout);
+ break;
+#ifdef LP_STATS
+ case LPGETSTATS:
+ /* FIXME: add an implementation if you set LP_STATS */
+ ret = -EINVAL;
+ break;
+#endif
+ default:
+ ret = lp_do_ioctl(minor, cmd, arg, compat_ptr(arg));
+ break;
+ }
+ unlock_kernel();
+
+ return ret;
+}
+#endif
+
static const struct file_operations lp_fops = {
.owner = THIS_MODULE,
.write = lp_write,
- .ioctl = lp_ioctl,
+ .unlocked_ioctl = lp_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = lp_compat_ioctl,
+#endif
.open = lp_open,
.release = lp_release,
#ifdef CONFIG_PARPORT_1284
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index fba76fb55ab..be832b6f827 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -34,6 +34,16 @@
# include <linux/efi.h>
#endif
+static inline unsigned long size_inside_page(unsigned long start,
+ unsigned long size)
+{
+ unsigned long sz;
+
+ sz = PAGE_SIZE - (start & (PAGE_SIZE - 1));
+
+ return min(sz, size);
+}
+
/*
* Architectures vary in how they handle caching for addresses
* outside of main memory.
@@ -126,9 +136,7 @@ static ssize_t read_mem(struct file * file, char __user * buf,
#ifdef __ARCH_HAS_NO_PAGE_ZERO_MAPPED
/* we don't have page 0 mapped on sparc and m68k.. */
if (p < PAGE_SIZE) {
- sz = PAGE_SIZE - p;
- if (sz > count)
- sz = count;
+ sz = size_inside_page(p, count);
if (sz > 0) {
if (clear_user(buf, sz))
return -EFAULT;
@@ -141,15 +149,9 @@ static ssize_t read_mem(struct file * file, char __user * buf,
#endif
while (count > 0) {
- /*
- * Handle first page in case it's not aligned
- */
- if (-p & (PAGE_SIZE - 1))
- sz = -p & (PAGE_SIZE - 1);
- else
- sz = PAGE_SIZE;
+ unsigned long remaining;
- sz = min_t(unsigned long, sz, count);
+ sz = size_inside_page(p, count);
if (!range_is_allowed(p >> PAGE_SHIFT, count))
return -EPERM;
@@ -163,12 +165,10 @@ static ssize_t read_mem(struct file * file, char __user * buf,
if (!ptr)
return -EFAULT;
- if (copy_to_user(buf, ptr, sz)) {
- unxlate_dev_mem_ptr(p, ptr);
- return -EFAULT;
- }
-
+ remaining = copy_to_user(buf, ptr, sz);
unxlate_dev_mem_ptr(p, ptr);
+ if (remaining)
+ return -EFAULT;
buf += sz;
p += sz;
@@ -196,9 +196,7 @@ static ssize_t write_mem(struct file * file, const char __user * buf,
#ifdef __ARCH_HAS_NO_PAGE_ZERO_MAPPED
/* we don't have page 0 mapped on sparc and m68k.. */
if (p < PAGE_SIZE) {
- unsigned long sz = PAGE_SIZE - p;
- if (sz > count)
- sz = count;
+ sz = size_inside_page(p, count);
/* Hmm. Do something? */
buf += sz;
p += sz;
@@ -208,15 +206,7 @@ static ssize_t write_mem(struct file * file, const char __user * buf,
#endif
while (count > 0) {
- /*
- * Handle first page in case it's not aligned
- */
- if (-p & (PAGE_SIZE - 1))
- sz = -p & (PAGE_SIZE - 1);
- else
- sz = PAGE_SIZE;
-
- sz = min_t(unsigned long, sz, count);
+ sz = size_inside_page(p, count);
if (!range_is_allowed(p >> PAGE_SHIFT, sz))
return -EPERM;
@@ -234,16 +224,14 @@ static ssize_t write_mem(struct file * file, const char __user * buf,
}
copied = copy_from_user(ptr, buf, sz);
+ unxlate_dev_mem_ptr(p, ptr);
if (copied) {
written += sz - copied;
- unxlate_dev_mem_ptr(p, ptr);
if (written)
break;
return -EFAULT;
}
- unxlate_dev_mem_ptr(p, ptr);
-
buf += sz;
p += sz;
count -= sz;
@@ -417,27 +405,18 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
#ifdef __ARCH_HAS_NO_PAGE_ZERO_MAPPED
/* we don't have page 0 mapped on sparc and m68k.. */
if (p < PAGE_SIZE && low_count > 0) {
- size_t tmp = PAGE_SIZE - p;
- if (tmp > low_count) tmp = low_count;
- if (clear_user(buf, tmp))
+ sz = size_inside_page(p, low_count);
+ if (clear_user(buf, sz))
return -EFAULT;
- buf += tmp;
- p += tmp;
- read += tmp;
- low_count -= tmp;
- count -= tmp;
+ buf += sz;
+ p += sz;
+ read += sz;
+ low_count -= sz;
+ count -= sz;
}
#endif
while (low_count > 0) {
- /*
- * Handle first page in case it's not aligned
- */
- if (-p & (PAGE_SIZE - 1))
- sz = -p & (PAGE_SIZE - 1);
- else
- sz = PAGE_SIZE;
-
- sz = min_t(unsigned long, sz, low_count);
+ sz = size_inside_page(p, low_count);
/*
* On ia64 if a page has been mapped somewhere as
@@ -461,21 +440,18 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
if (!kbuf)
return -ENOMEM;
while (count > 0) {
- int len = count;
-
- if (len > PAGE_SIZE)
- len = PAGE_SIZE;
- len = vread(kbuf, (char *)p, len);
- if (!len)
+ sz = size_inside_page(p, count);
+ sz = vread(kbuf, (char *)p, sz);
+ if (!sz)
break;
- if (copy_to_user(buf, kbuf, len)) {
+ if (copy_to_user(buf, kbuf, sz)) {
free_page((unsigned long)kbuf);
return -EFAULT;
}
- count -= len;
- buf += len;
- read += len;
- p += len;
+ count -= sz;
+ buf += sz;
+ read += sz;
+ p += sz;
}
free_page((unsigned long)kbuf);
}
@@ -485,7 +461,7 @@ static ssize_t read_kmem(struct file *file, char __user *buf,
static inline ssize_t
-do_write_kmem(void *p, unsigned long realp, const char __user * buf,
+do_write_kmem(unsigned long p, const char __user *buf,
size_t count, loff_t *ppos)
{
ssize_t written, sz;
@@ -494,14 +470,11 @@ do_write_kmem(void *p, unsigned long realp, const char __user * buf,
written = 0;
#ifdef __ARCH_HAS_NO_PAGE_ZERO_MAPPED
/* we don't have page 0 mapped on sparc and m68k.. */
- if (realp < PAGE_SIZE) {
- unsigned long sz = PAGE_SIZE - realp;
- if (sz > count)
- sz = count;
+ if (p < PAGE_SIZE) {
+ sz = size_inside_page(p, count);
/* Hmm. Do something? */
buf += sz;
p += sz;
- realp += sz;
count -= sz;
written += sz;
}
@@ -509,22 +482,15 @@ do_write_kmem(void *p, unsigned long realp, const char __user * buf,
while (count > 0) {
char *ptr;
- /*
- * Handle first page in case it's not aligned
- */
- if (-realp & (PAGE_SIZE - 1))
- sz = -realp & (PAGE_SIZE - 1);
- else
- sz = PAGE_SIZE;
- sz = min_t(unsigned long, sz, count);
+ sz = size_inside_page(p, count);
/*
* On ia64 if a page has been mapped somewhere as
* uncached, then it must also be accessed uncached
* by the kernel or data corruption may occur
*/
- ptr = xlate_dev_kmem_ptr(p);
+ ptr = xlate_dev_kmem_ptr((char *)p);
copied = copy_from_user(ptr, buf, sz);
if (copied) {
@@ -535,7 +501,6 @@ do_write_kmem(void *p, unsigned long realp, const char __user * buf,
}
buf += sz;
p += sz;
- realp += sz;
count -= sz;
written += sz;
}
@@ -554,19 +519,14 @@ static ssize_t write_kmem(struct file * file, const char __user * buf,
unsigned long p = *ppos;
ssize_t wrote = 0;
ssize_t virtr = 0;
- ssize_t written;
char * kbuf; /* k-addr because vwrite() takes vmlist_lock rwlock */
if (p < (unsigned long) high_memory) {
-
- wrote = count;
- if (count > (unsigned long) high_memory - p)
- wrote = (unsigned long) high_memory - p;
-
- written = do_write_kmem((void*)p, p, buf, wrote, ppos);
- if (written != wrote)
- return written;
- wrote = written;
+ unsigned long to_write = min_t(unsigned long, count,
+ (unsigned long)high_memory - p);
+ wrote = do_write_kmem(p, buf, to_write, ppos);
+ if (wrote != to_write)
+ return wrote;
p += wrote;
buf += wrote;
count -= wrote;
@@ -577,24 +537,21 @@ static ssize_t write_kmem(struct file * file, const char __user * buf,
if (!kbuf)
return wrote ? wrote : -ENOMEM;
while (count > 0) {
- int len = count;
-
- if (len > PAGE_SIZE)
- len = PAGE_SIZE;
- if (len) {
- written = copy_from_user(kbuf, buf, len);
- if (written) {
- if (wrote + virtr)
- break;
- free_page((unsigned long)kbuf);
- return -EFAULT;
- }
+ unsigned long sz = size_inside_page(p, count);
+ unsigned long n;
+
+ n = copy_from_user(kbuf, buf, sz);
+ if (n) {
+ if (wrote + virtr)
+ break;
+ free_page((unsigned long)kbuf);
+ return -EFAULT;
}
- len = vwrite(kbuf, (char *)p, len);
- count -= len;
- buf += len;
- virtr += len;
- p += len;
+ sz = vwrite(kbuf, (char *)p, sz);
+ count -= sz;
+ buf += sz;
+ virtr += sz;
+ p += sz;
}
free_page((unsigned long)kbuf);
}
diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index 96f1cd086dd..94a136e96c0 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -60,9 +60,7 @@ static DEFINE_MUTEX(misc_mtx);
* Assigned numbers, used for dynamic minors
*/
#define DYNAMIC_MINORS 64 /* like dynamic majors */
-static unsigned char misc_minors[DYNAMIC_MINORS / 8];
-
-extern int pmu_device_init(void);
+static DECLARE_BITMAP(misc_minors, DYNAMIC_MINORS);
#ifdef CONFIG_PROC_FS
static void *misc_seq_start(struct seq_file *seq, loff_t *pos)
@@ -198,24 +196,23 @@ int misc_register(struct miscdevice * misc)
}
if (misc->minor == MISC_DYNAMIC_MINOR) {
- int i = DYNAMIC_MINORS;
- while (--i >= 0)
- if ( (misc_minors[i>>3] & (1 << (i&7))) == 0)
- break;
- if (i<0) {
+ int i = find_first_zero_bit(misc_minors, DYNAMIC_MINORS);
+ if (i >= DYNAMIC_MINORS) {
mutex_unlock(&misc_mtx);
return -EBUSY;
}
- misc->minor = i;
+ misc->minor = DYNAMIC_MINORS - i - 1;
+ set_bit(i, misc_minors);
}
- if (misc->minor < DYNAMIC_MINORS)
- misc_minors[misc->minor >> 3] |= 1 << (misc->minor & 7);
dev = MKDEV(MISC_MAJOR, misc->minor);
misc->this_device = device_create(misc_class, misc->parent, dev,
misc, "%s", misc->name);
if (IS_ERR(misc->this_device)) {
+ int i = DYNAMIC_MINORS - misc->minor - 1;
+ if (i < DYNAMIC_MINORS && i >= 0)
+ clear_bit(i, misc_minors);
err = PTR_ERR(misc->this_device);
goto out;
}
@@ -242,7 +239,7 @@ int misc_register(struct miscdevice * misc)
int misc_deregister(struct miscdevice *misc)
{
- int i = misc->minor;
+ int i = DYNAMIC_MINORS - misc->minor - 1;
if (list_empty(&misc->list))
return -EINVAL;
@@ -250,9 +247,8 @@ int misc_deregister(struct miscdevice *misc)
mutex_lock(&misc_mtx);
list_del(&misc->list);
device_destroy(misc_class, MKDEV(MISC_MAJOR, misc->minor));
- if (i < DYNAMIC_MINORS && i>0) {
- misc_minors[i>>3] &= ~(1 << (misc->minor & 7));
- }
+ if (i < DYNAMIC_MINORS && i >= 0)
+ clear_bit(i, misc_minors);
mutex_unlock(&misc_mtx);
return 0;
}
diff --git a/drivers/char/nozomi.c b/drivers/char/nozomi.c
index d3400b20444..2ad7d37afbd 100644
--- a/drivers/char/nozomi.c
+++ b/drivers/char/nozomi.c
@@ -358,7 +358,7 @@ struct port {
u8 update_flow_control;
struct ctrl_ul ctrl_ul;
struct ctrl_dl ctrl_dl;
- struct kfifo *fifo_ul;
+ struct kfifo fifo_ul;
void __iomem *dl_addr[2];
u32 dl_size[2];
u8 toggle_dl;
@@ -685,8 +685,6 @@ static int nozomi_read_config_table(struct nozomi *dc)
dump_table(dc);
for (i = PORT_MDM; i < MAX_PORT; i++) {
- dc->port[i].fifo_ul =
- kfifo_alloc(FIFO_BUFFER_SIZE_UL, GFP_ATOMIC, NULL);
memset(&dc->port[i].ctrl_dl, 0, sizeof(struct ctrl_dl));
memset(&dc->port[i].ctrl_ul, 0, sizeof(struct ctrl_ul));
}
@@ -798,7 +796,7 @@ static int send_data(enum port_type index, struct nozomi *dc)
struct tty_struct *tty = tty_port_tty_get(&port->port);
/* Get data from tty and place in buf for now */
- size = __kfifo_get(port->fifo_ul, dc->send_buf,
+ size = kfifo_out(&port->fifo_ul, dc->send_buf,
ul_size < SEND_BUF_MAX ? ul_size : SEND_BUF_MAX);
if (size == 0) {
@@ -988,11 +986,11 @@ static int receive_flow_control(struct nozomi *dc)
} else if (old_ctrl.CTS == 0 && ctrl_dl.CTS == 1) {
- if (__kfifo_len(dc->port[port].fifo_ul)) {
+ if (kfifo_len(&dc->port[port].fifo_ul)) {
DBG1("Enable interrupt (0x%04X) on port: %d",
enable_ier, port);
DBG1("Data in buffer [%d], enable transmit! ",
- __kfifo_len(dc->port[port].fifo_ul));
+ kfifo_len(&dc->port[port].fifo_ul));
enable_transmit_ul(port, dc);
} else {
DBG1("No data in buffer...");
@@ -1433,6 +1431,16 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev,
goto err_free_sbuf;
}
+ for (i = PORT_MDM; i < MAX_PORT; i++) {
+ if (kfifo_alloc(&dc->port[i].fifo_ul,
+ FIFO_BUFFER_SIZE_UL, GFP_ATOMIC)) {
+ dev_err(&pdev->dev,
+ "Could not allocate kfifo buffer\n");
+ ret = -ENOMEM;
+ goto err_free_kfifo;
+ }
+ }
+
spin_lock_init(&dc->spin_mutex);
nozomi_setup_private_data(dc);
@@ -1445,7 +1453,7 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev,
NOZOMI_NAME, dc);
if (unlikely(ret)) {
dev_err(&pdev->dev, "can't request irq %d\n", pdev->irq);
- goto err_free_sbuf;
+ goto err_free_kfifo;
}
DBG1("base_addr: %p", dc->base_addr);
@@ -1464,13 +1472,28 @@ static int __devinit nozomi_card_init(struct pci_dev *pdev,
dc->state = NOZOMI_STATE_ENABLED;
for (i = 0; i < MAX_PORT; i++) {
+ struct device *tty_dev;
+
mutex_init(&dc->port[i].tty_sem);
tty_port_init(&dc->port[i].port);
- tty_register_device(ntty_driver, dc->index_start + i,
+ tty_dev = tty_register_device(ntty_driver, dc->index_start + i,
&pdev->dev);
+
+ if (IS_ERR(tty_dev)) {
+ ret = PTR_ERR(tty_dev);
+ dev_err(&pdev->dev, "Could not allocate tty?\n");
+ goto err_free_tty;
+ }
}
+
return 0;
+err_free_tty:
+ for (i = dc->index_start; i < dc->index_start + MAX_PORT; ++i)
+ tty_unregister_device(ntty_driver, i);
+err_free_kfifo:
+ for (i = 0; i < MAX_PORT; i++)
+ kfifo_free(&dc->port[i].fifo_ul);
err_free_sbuf:
kfree(dc->send_buf);
iounmap(dc->base_addr);
@@ -1536,8 +1559,7 @@ static void __devexit nozomi_card_exit(struct pci_dev *pdev)
free_irq(pdev->irq, dc);
for (i = 0; i < MAX_PORT; i++)
- if (dc->port[i].fifo_ul)
- kfifo_free(dc->port[i].fifo_ul);
+ kfifo_free(&dc->port[i].fifo_ul);
kfree(dc->send_buf);
@@ -1629,10 +1651,10 @@ static void ntty_close(struct tty_struct *tty, struct file *file)
dc->open_ttys--;
port->count--;
- tty_port_tty_set(port, NULL);
if (port->count == 0) {
DBG1("close: %d", nport->token_dl);
+ tty_port_tty_set(port, NULL);
spin_lock_irqsave(&dc->spin_mutex, flags);
dc->last_ier &= ~(nport->token_dl);
writew(dc->last_ier, dc->reg_ier);
@@ -1673,7 +1695,7 @@ static int ntty_write(struct tty_struct *tty, const unsigned char *buffer,
goto exit;
}
- rval = __kfifo_put(port->fifo_ul, (unsigned char *)buffer, count);
+ rval = kfifo_in(&port->fifo_ul, (unsigned char *)buffer, count);
/* notify card */
if (unlikely(dc == NULL)) {
@@ -1721,7 +1743,7 @@ static int ntty_write_room(struct tty_struct *tty)
if (!port->port.count)
goto exit;
- room = port->fifo_ul->size - __kfifo_len(port->fifo_ul);
+ room = port->fifo_ul.size - kfifo_len(&port->fifo_ul);
exit:
mutex_unlock(&port->tty_sem);
@@ -1878,7 +1900,7 @@ static s32 ntty_chars_in_buffer(struct tty_struct *tty)
goto exit_in_buffer;
}
- rval = __kfifo_len(port->fifo_ul);
+ rval = kfifo_len(&port->fifo_ul);
exit_in_buffer:
return rval;
diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c
index 4008e2ce73c..fdbcc9fd6d3 100644
--- a/drivers/char/nvram.c
+++ b/drivers/char/nvram.c
@@ -264,10 +264,16 @@ static ssize_t nvram_write(struct file *file, const char __user *buf,
unsigned char contents[NVRAM_BYTES];
unsigned i = *ppos;
unsigned char *tmp;
- int len;
- len = (NVRAM_BYTES - i) < count ? (NVRAM_BYTES - i) : count;
- if (copy_from_user(contents, buf, len))
+ if (i >= NVRAM_BYTES)
+ return 0; /* Past EOF */
+
+ if (count > NVRAM_BYTES - i)
+ count = NVRAM_BYTES - i;
+ if (count > NVRAM_BYTES)
+ return -EFAULT; /* Can't happen, but prove it to gcc */
+
+ if (copy_from_user(contents, buf, count))
return -EFAULT;
spin_lock_irq(&rtc_lock);
@@ -275,7 +281,7 @@ static ssize_t nvram_write(struct file *file, const char __user *buf,
if (!__nvram_check_checksum())
goto checksum_err;
- for (tmp = contents; count-- > 0 && i < NVRAM_BYTES; ++i, ++tmp)
+ for (tmp = contents; count--; ++i, ++tmp)
__nvram_write_byte(*tmp, i);
__nvram_set_checksum();
diff --git a/drivers/char/nwflash.c b/drivers/char/nwflash.c
index 8c7df5ba088..f80810901db 100644
--- a/drivers/char/nwflash.c
+++ b/drivers/char/nwflash.c
@@ -27,6 +27,7 @@
#include <linux/init.h>
#include <linux/smp_lock.h>
#include <linux/mutex.h>
+#include <linux/jiffies.h>
#include <asm/hardware/dec21285.h>
#include <asm/io.h>
diff --git a/drivers/char/random.c b/drivers/char/random.c
index dcd08635cf1..8258982b49e 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1245,12 +1245,8 @@ static int proc_do_uuid(ctl_table *table, int write,
if (uuid[8] == 0)
generate_random_uuid(uuid);
- sprintf(buf, "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-"
- "%02x%02x%02x%02x%02x%02x",
- uuid[0], uuid[1], uuid[2], uuid[3],
- uuid[4], uuid[5], uuid[6], uuid[7],
- uuid[8], uuid[9], uuid[10], uuid[11],
- uuid[12], uuid[13], uuid[14], uuid[15]);
+ sprintf(buf, "%pU", uuid);
+
fake_table.data = buf;
fake_table.maxlen = sizeof(buf);
@@ -1310,7 +1306,7 @@ ctl_table random_table[] = {
/********************************************************************
*
- * Random funtions for networking
+ * Random functions for networking
*
********************************************************************/
diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c
index 8c262aaf7c2..bba727c3807 100644
--- a/drivers/char/sonypi.c
+++ b/drivers/char/sonypi.c
@@ -50,7 +50,6 @@
#include <linux/err.h>
#include <linux/kfifo.h>
#include <linux/platform_device.h>
-#include <linux/smp_lock.h>
#include <asm/uaccess.h>
#include <asm/io.h>
@@ -487,7 +486,7 @@ static struct sonypi_device {
int camera_power;
int bluetooth_power;
struct mutex lock;
- struct kfifo *fifo;
+ struct kfifo fifo;
spinlock_t fifo_lock;
wait_queue_head_t fifo_proc_list;
struct fasync_struct *fifo_async;
@@ -496,7 +495,7 @@ static struct sonypi_device {
struct input_dev *input_jog_dev;
struct input_dev *input_key_dev;
struct work_struct input_work;
- struct kfifo *input_fifo;
+ struct kfifo input_fifo;
spinlock_t input_fifo_lock;
} sonypi_device;
@@ -777,8 +776,9 @@ static void input_keyrelease(struct work_struct *work)
{
struct sonypi_keypress kp;
- while (kfifo_get(sonypi_device.input_fifo, (unsigned char *)&kp,
- sizeof(kp)) == sizeof(kp)) {
+ while (kfifo_out_locked(&sonypi_device.input_fifo, (unsigned char *)&kp,
+ sizeof(kp), &sonypi_device.input_fifo_lock)
+ == sizeof(kp)) {
msleep(10);
input_report_key(kp.dev, kp.key, 0);
input_sync(kp.dev);
@@ -827,8 +827,9 @@ static void sonypi_report_input_event(u8 event)
if (kp.dev) {
input_report_key(kp.dev, kp.key, 1);
input_sync(kp.dev);
- kfifo_put(sonypi_device.input_fifo,
- (unsigned char *)&kp, sizeof(kp));
+ kfifo_in_locked(&sonypi_device.input_fifo,
+ (unsigned char *)&kp, sizeof(kp),
+ &sonypi_device.input_fifo_lock);
schedule_work(&sonypi_device.input_work);
}
}
@@ -880,7 +881,8 @@ found:
acpi_bus_generate_proc_event(sonypi_acpi_device, 1, event);
#endif
- kfifo_put(sonypi_device.fifo, (unsigned char *)&event, sizeof(event));
+ kfifo_in_locked(&sonypi_device.fifo, (unsigned char *)&event,
+ sizeof(event), &sonypi_device.fifo_lock);
kill_fasync(&sonypi_device.fifo_async, SIGIO, POLL_IN);
wake_up_interruptible(&sonypi_device.fifo_proc_list);
@@ -902,14 +904,13 @@ static int sonypi_misc_release(struct inode *inode, struct file *file)
static int sonypi_misc_open(struct inode *inode, struct file *file)
{
- lock_kernel();
mutex_lock(&sonypi_device.lock);
/* Flush input queue on first open */
if (!sonypi_device.open_count)
- kfifo_reset(sonypi_device.fifo);
+ kfifo_reset(&sonypi_device.fifo);
sonypi_device.open_count++;
mutex_unlock(&sonypi_device.lock);
- unlock_kernel();
+
return 0;
}
@@ -919,17 +920,18 @@ static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
ssize_t ret;
unsigned char c;
- if ((kfifo_len(sonypi_device.fifo) == 0) &&
+ if ((kfifo_len(&sonypi_device.fifo) == 0) &&
(file->f_flags & O_NONBLOCK))
return -EAGAIN;
ret = wait_event_interruptible(sonypi_device.fifo_proc_list,
- kfifo_len(sonypi_device.fifo) != 0);
+ kfifo_len(&sonypi_device.fifo) != 0);
if (ret)
return ret;
while (ret < count &&
- (kfifo_get(sonypi_device.fifo, &c, sizeof(c)) == sizeof(c))) {
+ (kfifo_out_locked(&sonypi_device.fifo, &c, sizeof(c),
+ &sonypi_device.fifo_lock) == sizeof(c))) {
if (put_user(c, buf++))
return -EFAULT;
ret++;
@@ -946,15 +948,15 @@ static ssize_t sonypi_misc_read(struct file *file, char __user *buf,
static unsigned int sonypi_misc_poll(struct file *file, poll_table *wait)
{
poll_wait(file, &sonypi_device.fifo_proc_list, wait);
- if (kfifo_len(sonypi_device.fifo))
+ if (kfifo_len(&sonypi_device.fifo))
return POLLIN | POLLRDNORM;
return 0;
}
-static int sonypi_misc_ioctl(struct inode *ip, struct file *fp,
+static long sonypi_misc_ioctl(struct file *fp,
unsigned int cmd, unsigned long arg)
{
- int ret = 0;
+ long ret = 0;
void __user *argp = (void __user *)arg;
u8 val8;
u16 val16;
@@ -1070,7 +1072,8 @@ static const struct file_operations sonypi_misc_fops = {
.open = sonypi_misc_open,
.release = sonypi_misc_release,
.fasync = sonypi_misc_fasync,
- .ioctl = sonypi_misc_ioctl,
+ .unlocked_ioctl = sonypi_misc_ioctl,
+ .llseek = no_llseek,
};
static struct miscdevice sonypi_misc_device = {
@@ -1313,11 +1316,10 @@ static int __devinit sonypi_probe(struct platform_device *dev)
"http://www.linux.it/~malattia/wiki/index.php/Sony_drivers\n");
spin_lock_init(&sonypi_device.fifo_lock);
- sonypi_device.fifo = kfifo_alloc(SONYPI_BUF_SIZE, GFP_KERNEL,
- &sonypi_device.fifo_lock);
- if (IS_ERR(sonypi_device.fifo)) {
+ error = kfifo_alloc(&sonypi_device.fifo, SONYPI_BUF_SIZE, GFP_KERNEL);
+ if (error) {
printk(KERN_ERR "sonypi: kfifo_alloc failed\n");
- return PTR_ERR(sonypi_device.fifo);
+ return error;
}
init_waitqueue_head(&sonypi_device.fifo_proc_list);
@@ -1393,12 +1395,10 @@ static int __devinit sonypi_probe(struct platform_device *dev)
}
spin_lock_init(&sonypi_device.input_fifo_lock);
- sonypi_device.input_fifo =
- kfifo_alloc(SONYPI_BUF_SIZE, GFP_KERNEL,
- &sonypi_device.input_fifo_lock);
- if (IS_ERR(sonypi_device.input_fifo)) {
+ error = kfifo_alloc(&sonypi_device.input_fifo, SONYPI_BUF_SIZE,
+ GFP_KERNEL);
+ if (error) {
printk(KERN_ERR "sonypi: kfifo_alloc failed\n");
- error = PTR_ERR(sonypi_device.input_fifo);
goto err_inpdev_unregister;
}
@@ -1423,7 +1423,7 @@ static int __devinit sonypi_probe(struct platform_device *dev)
pci_disable_device(pcidev);
err_put_pcidev:
pci_dev_put(pcidev);
- kfifo_free(sonypi_device.fifo);
+ kfifo_free(&sonypi_device.fifo);
return error;
}
@@ -1438,7 +1438,7 @@ static int __devexit sonypi_remove(struct platform_device *dev)
if (useinput) {
input_unregister_device(sonypi_device.input_key_dev);
input_unregister_device(sonypi_device.input_jog_dev);
- kfifo_free(sonypi_device.input_fifo);
+ kfifo_free(&sonypi_device.input_fifo);
}
misc_deregister(&sonypi_misc_device);
@@ -1451,7 +1451,7 @@ static int __devexit sonypi_remove(struct platform_device *dev)
pci_dev_put(sonypi_device.dev);
}
- kfifo_free(sonypi_device.fifo);
+ kfifo_free(&sonypi_device.fifo);
return 0;
}
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 44203ff599d..1ae2de7d8b4 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -339,7 +339,7 @@ static struct sysrq_key_op sysrq_term_op = {
static void moom_callback(struct work_struct *ignored)
{
- out_of_memory(node_zonelist(0, GFP_KERNEL), GFP_KERNEL, 0);
+ out_of_memory(node_zonelist(0, GFP_KERNEL), GFP_KERNEL, 0, NULL);
}
static DECLARE_WORK(moom_work, moom_callback);
diff --git a/drivers/char/toshiba.c b/drivers/char/toshiba.c
index 663cd15d7c7..f8bc79f6de3 100644
--- a/drivers/char/toshiba.c
+++ b/drivers/char/toshiba.c
@@ -68,7 +68,7 @@
#include <linux/stat.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
-
+#include <linux/smp_lock.h>
#include <linux/toshiba.h>
#define TOSH_MINOR_DEV 181
@@ -88,13 +88,13 @@ static int tosh_date;
static int tosh_sci;
static int tosh_fan;
-static int tosh_ioctl(struct inode *, struct file *, unsigned int,
+static long tosh_ioctl(struct file *, unsigned int,
unsigned long);
static const struct file_operations tosh_fops = {
.owner = THIS_MODULE,
- .ioctl = tosh_ioctl,
+ .unlocked_ioctl = tosh_ioctl,
};
static struct miscdevice tosh_device = {
@@ -252,8 +252,7 @@ int tosh_smm(SMMRegisters *regs)
EXPORT_SYMBOL(tosh_smm);
-static int tosh_ioctl(struct inode *ip, struct file *fp, unsigned int cmd,
- unsigned long arg)
+static long tosh_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
{
SMMRegisters regs;
SMMRegisters __user *argp = (SMMRegisters __user *)arg;
@@ -275,13 +274,16 @@ static int tosh_ioctl(struct inode *ip, struct file *fp, unsigned int cmd,
return -EINVAL;
/* do we need to emulate the fan ? */
+ lock_kernel();
if (tosh_fan==1) {
if (((ax==0xf300) || (ax==0xf400)) && (bx==0x0004)) {
err = tosh_emulate_fan(&regs);
+ unlock_kernel();
break;
}
}
err = tosh_smm(&regs);
+ unlock_kernel();
break;
default:
return -EINVAL;
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 684f0e0b175..c6f3b48be9d 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -516,7 +516,6 @@ static void do_tty_hangup(struct work_struct *work)
/* inuse_filps is protected by the single kernel lock */
lock_kernel();
check_tty_count(tty, "do_tty_hangup");
- unlock_kernel();
file_list_lock();
/* This breaks for file handles being sent over AF_UNIX sockets ? */
@@ -531,7 +530,6 @@ static void do_tty_hangup(struct work_struct *work)
}
file_list_unlock();
- lock_kernel();
tty_ldisc_hangup(tty);
read_lock(&tasklist_lock);
@@ -1953,8 +1951,8 @@ static int tty_fasync(int fd, struct file *filp, int on)
pid = task_pid(current);
type = PIDTYPE_PID;
}
- spin_unlock_irqrestore(&tty->ctrl_lock, flags);
retval = __f_setown(filp, pid, type, 0);
+ spin_unlock_irqrestore(&tty->ctrl_lock, flags);
if (retval)
goto out;
} else {
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index 1e3d728dbf7..50faa1fb0f0 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -164,6 +164,9 @@ module_param(default_utf8, int, S_IRUGO | S_IWUSR);
int global_cursor_default = -1;
module_param(global_cursor_default, int, S_IRUGO | S_IWUSR);
+static int cur_default = CUR_DEFAULT;
+module_param(cur_default, int, S_IRUGO | S_IWUSR);
+
/*
* ignore_poke: don't unblank the screen when things are typed. This is
* mainly for the privacy of braille terminal users.
@@ -184,12 +187,10 @@ static DECLARE_WORK(console_work, console_callback);
* fg_console is the current virtual console,
* last_console is the last used one,
* want_console is the console we want to switch to,
- * kmsg_redirect is the console for kernel messages,
*/
int fg_console;
int last_console;
int want_console = -1;
-int kmsg_redirect;
/*
* For each existing display, we have a pointer to console currently visible
@@ -1638,7 +1639,7 @@ static void reset_terminal(struct vc_data *vc, int do_clear)
/* do not do set_leds here because this causes an endless tasklet loop
when the keyboard hasn't been initialized yet */
- vc->vc_cursor_type = CUR_DEFAULT;
+ vc->vc_cursor_type = cur_default;
vc->vc_complement_mask = vc->vc_s_complement_mask;
default_attr(vc);
@@ -1840,7 +1841,7 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
if (vc->vc_par[0])
vc->vc_cursor_type = vc->vc_par[0] | (vc->vc_par[1] << 8) | (vc->vc_par[2] << 16);
else
- vc->vc_cursor_type = CUR_DEFAULT;
+ vc->vc_cursor_type = cur_default;
return;
}
break;
@@ -2434,6 +2435,37 @@ struct tty_driver *console_driver;
#ifdef CONFIG_VT_CONSOLE
+/**
+ * vt_kmsg_redirect() - Sets/gets the kernel message console
+ * @new: The new virtual terminal number or -1 if the console should stay
+ * unchanged
+ *
+ * By default, the kernel messages are always printed on the current virtual
+ * console. However, the user may modify that default with the
+ * TIOCL_SETKMSGREDIRECT ioctl call.
+ *
+ * This function sets the kernel message console to be @new. It returns the old
+ * virtual console number. The virtual terminal number 0 (both as parameter and
+ * return value) means no redirection (i.e. always printed on the currently
+ * active console).
+ *
+ * The parameter -1 means that only the current console is returned, but the
+ * value is not modified. You may use the macro vt_get_kmsg_redirect() in that
+ * case to make the code more understandable.
+ *
+ * When the kernel is compiled without CONFIG_VT_CONSOLE, this function ignores
+ * the parameter and always returns 0.
+ */
+int vt_kmsg_redirect(int new)
+{
+ static int kmsg_con;
+
+ if (new != -1)
+ return xchg(&kmsg_con, new);
+ else
+ return kmsg_con;
+}
+
/*
* Console on virtual terminal
*
@@ -2448,6 +2480,7 @@ static void vt_console_print(struct console *co, const char *b, unsigned count)
const ushort *start;
ushort cnt = 0;
ushort myx;
+ int kmsg_console;
/* console busy or not yet initialized */
if (!printable)
@@ -2455,8 +2488,9 @@ static void vt_console_print(struct console *co, const char *b, unsigned count)
if (!spin_trylock(&printing_lock))
return;
- if (kmsg_redirect && vc_cons_allocated(kmsg_redirect - 1))
- vc = vc_cons[kmsg_redirect - 1].d;
+ kmsg_console = vt_get_kmsg_redirect();
+ if (kmsg_console && vc_cons_allocated(kmsg_console - 1))
+ vc = vc_cons[kmsg_console - 1].d;
/* read `x' only after setting currcons properly (otherwise
the `x' macro will read the x of the foreground console). */
@@ -2613,7 +2647,7 @@ int tioclinux(struct tty_struct *tty, unsigned long arg)
ret = set_vesa_blanking(p);
break;
case TIOCL_GETKMSGREDIRECT:
- data = kmsg_redirect;
+ data = vt_get_kmsg_redirect();
ret = __put_user(data, p);
break;
case TIOCL_SETKMSGREDIRECT:
@@ -2623,7 +2657,7 @@ int tioclinux(struct tty_struct *tty, unsigned long arg)
if (get_user(data, p+1))
ret = -EFAULT;
else
- kmsg_redirect = data;
+ vt_kmsg_redirect(data);
}
break;
case TIOCL_GETFGCONSOLE:
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-23 23:18:27 +0000