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SubjectRe: [3.13.y-ckt stable] Linux 3.13.11-ckt20
Date
diff --git a/Makefile b/Makefile
index d917ed5..35d9566 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 13
SUBLEVEL = 11
-EXTRAVERSION = -ckt19
+EXTRAVERSION = -ckt20
NAME = King of Alienated Frog Porn

# *DOCUMENTATION*
diff --git a/arch/arc/kernel/signal.c b/arch/arc/kernel/signal.c
index 7e95e1a..d68b410 100644
--- a/arch/arc/kernel/signal.c
+++ b/arch/arc/kernel/signal.c
@@ -67,7 +67,7 @@ stash_usr_regs(struct rt_sigframe __user *sf, struct pt_regs *regs,
sigset_t *set)
{
int err;
- err = __copy_to_user(&(sf->uc.uc_mcontext.regs), regs,
+ err = __copy_to_user(&(sf->uc.uc_mcontext.regs.scratch), regs,
sizeof(sf->uc.uc_mcontext.regs.scratch));
err |= __copy_to_user(&sf->uc.uc_sigmask, set, sizeof(sigset_t));

@@ -83,7 +83,7 @@ static int restore_usr_regs(struct pt_regs *regs, struct rt_sigframe __user *sf)
if (!err)
set_current_blocked(&set);

- err |= __copy_from_user(regs, &(sf->uc.uc_mcontext.regs),
+ err |= __copy_from_user(regs, &(sf->uc.uc_mcontext.regs.scratch),
sizeof(sf->uc.uc_mcontext.regs.scratch));

return err;
diff --git a/arch/arm64/include/asm/mmu_context.h b/arch/arm64/include/asm/mmu_context.h
index a9eee33..101a42b 100644
--- a/arch/arm64/include/asm/mmu_context.h
+++ b/arch/arm64/include/asm/mmu_context.h
@@ -151,6 +151,15 @@ switch_mm(struct mm_struct *prev, struct mm_struct *next,
{
unsigned int cpu = smp_processor_id();

+ /*
+ * init_mm.pgd does not contain any user mappings and it is always
+ * active for kernel addresses in TTBR1. Just set the reserved TTBR0.
+ */
+ if (next == &init_mm) {
+ cpu_set_reserved_ttbr0();
+ return;
+ }
+
if (!cpumask_test_and_set_cpu(cpu, mm_cpumask(next)) || prev != next)
check_and_switch_context(next, tsk);
}
diff --git a/arch/powerpc/platforms/pseries/mobility.c b/arch/powerpc/platforms/pseries/mobility.c
index cde4e0a..bf38292 100644
--- a/arch/powerpc/platforms/pseries/mobility.c
+++ b/arch/powerpc/platforms/pseries/mobility.c
@@ -24,10 +24,10 @@
static struct kobject *mobility_kobj;

struct update_props_workarea {
- u32 phandle;
- u32 state;
- u64 reserved;
- u32 nprops;
+ __be32 phandle;
+ __be32 state;
+ __be64 reserved;
+ __be32 nprops;
} __packed;

#define NODE_ACTION_MASK 0xff000000
@@ -53,11 +53,11 @@ static int mobility_rtas_call(int token, char *buf, s32 scope)
return rc;
}

-static int delete_dt_node(u32 phandle)
+static int delete_dt_node(__be32 phandle)
{
struct device_node *dn;

- dn = of_find_node_by_phandle(phandle);
+ dn = of_find_node_by_phandle(be32_to_cpu(phandle));
if (!dn)
return -ENOENT;

@@ -126,7 +126,7 @@ static int update_dt_property(struct device_node *dn, struct property **prop,
return 0;
}

-static int update_dt_node(u32 phandle, s32 scope)
+static int update_dt_node(__be32 phandle, s32 scope)
{
struct update_props_workarea *upwa;
struct device_node *dn;
@@ -135,6 +135,7 @@ static int update_dt_node(u32 phandle, s32 scope)
char *prop_data;
char *rtas_buf;
int update_properties_token;
+ u32 nprops;
u32 vd;

update_properties_token = rtas_token("ibm,update-properties");
@@ -145,7 +146,7 @@ static int update_dt_node(u32 phandle, s32 scope)
if (!rtas_buf)
return -ENOMEM;

- dn = of_find_node_by_phandle(phandle);
+ dn = of_find_node_by_phandle(be32_to_cpu(phandle));
if (!dn) {
kfree(rtas_buf);
return -ENOENT;
@@ -161,6 +162,7 @@ static int update_dt_node(u32 phandle, s32 scope)
break;

prop_data = rtas_buf + sizeof(*upwa);
+ nprops = be32_to_cpu(upwa->nprops);

/* On the first call to ibm,update-properties for a node the
* the first property value descriptor contains an empty
@@ -169,17 +171,17 @@ static int update_dt_node(u32 phandle, s32 scope)
*/
if (*prop_data == 0) {
prop_data++;
- vd = *(u32 *)prop_data;
+ vd = be32_to_cpu(*(__be32 *)prop_data);
prop_data += vd + sizeof(vd);
- upwa->nprops--;
+ nprops--;
}

- for (i = 0; i < upwa->nprops; i++) {
+ for (i = 0; i < nprops; i++) {
char *prop_name;

prop_name = prop_data;
prop_data += strlen(prop_name) + 1;
- vd = *(u32 *)prop_data;
+ vd = be32_to_cpu(*(__be32 *)prop_data);
prop_data += sizeof(vd);

switch (vd) {
@@ -211,13 +213,13 @@ static int update_dt_node(u32 phandle, s32 scope)
return 0;
}

-static int add_dt_node(u32 parent_phandle, u32 drc_index)
+static int add_dt_node(__be32 parent_phandle, __be32 drc_index)
{
struct device_node *dn;
struct device_node *parent_dn;
int rc;

- parent_dn = of_find_node_by_phandle(parent_phandle);
+ parent_dn = of_find_node_by_phandle(be32_to_cpu(parent_phandle));
if (!parent_dn)
return -ENOENT;

@@ -236,7 +238,7 @@ static int add_dt_node(u32 parent_phandle, u32 drc_index)
int pseries_devicetree_update(s32 scope)
{
char *rtas_buf;
- u32 *data;
+ __be32 *data;
int update_nodes_token;
int rc;

@@ -253,17 +255,17 @@ int pseries_devicetree_update(s32 scope)
if (rc && rc != 1)
break;

- data = (u32 *)rtas_buf + 4;
- while (*data & NODE_ACTION_MASK) {
+ data = (__be32 *)rtas_buf + 4;
+ while (be32_to_cpu(*data) & NODE_ACTION_MASK) {
int i;
- u32 action = *data & NODE_ACTION_MASK;
- int node_count = *data & NODE_COUNT_MASK;
+ u32 action = be32_to_cpu(*data) & NODE_ACTION_MASK;
+ u32 node_count = be32_to_cpu(*data) & NODE_COUNT_MASK;

data++;

for (i = 0; i < node_count; i++) {
- u32 phandle = *data++;
- u32 drc_index;
+ __be32 phandle = *data++;
+ __be32 drc_index;

switch (action) {
case DELETE_DT_NODE:
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index c752cb4..a6aa91f 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -181,6 +181,16 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
},
},

+ /* ASRock */
+ { /* Handle problems with rebooting on ASRock Q1900DC-ITX */
+ .callback = set_pci_reboot,
+ .ident = "ASRock Q1900DC-ITX",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "ASRock"),
+ DMI_MATCH(DMI_BOARD_NAME, "Q1900DC-ITX"),
+ },
+ },
+
/* ASUS */
{ /* Handle problems with rebooting on ASUS P4S800 */
.callback = set_bios_reboot,
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index f52e300..4a0de62 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -323,8 +323,12 @@ EXPORT_SYMBOL_GPL(kvm_apic_update_irr);

static inline void apic_set_irr(int vec, struct kvm_lapic *apic)
{
- apic->irr_pending = true;
apic_set_vector(vec, apic->regs + APIC_IRR);
+ /*
+ * irr_pending must be true if any interrupt is pending; set it after
+ * APIC_IRR to avoid race with apic_clear_irr
+ */
+ apic->irr_pending = true;
}

static inline int apic_search_irr(struct kvm_lapic *apic)
@@ -356,13 +360,15 @@ static inline void apic_clear_irr(int vec, struct kvm_lapic *apic)

vcpu = apic->vcpu;

- apic_clear_vector(vec, apic->regs + APIC_IRR);
- if (unlikely(kvm_apic_vid_enabled(vcpu->kvm)))
+ if (unlikely(kvm_apic_vid_enabled(vcpu->kvm))) {
/* try to update RVI */
+ apic_clear_vector(vec, apic->regs + APIC_IRR);
kvm_make_request(KVM_REQ_EVENT, vcpu);
- else {
- vec = apic_search_irr(apic);
- apic->irr_pending = (vec != -1);
+ } else {
+ apic->irr_pending = false;
+ apic_clear_vector(vec, apic->regs + APIC_IRR);
+ if (apic_search_irr(apic) != -1)
+ apic->irr_pending = true;
}
}

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 2ff437d..9c2c662 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2260,8 +2260,8 @@ static __init void nested_vmx_setup_ctls_msrs(void)

if (enable_ept) {
/* nested EPT: emulate EPT also to L1 */
- nested_vmx_secondary_ctls_high |= SECONDARY_EXEC_ENABLE_EPT |
- SECONDARY_EXEC_UNRESTRICTED_GUEST;
+ nested_vmx_secondary_ctls_high |=
+ SECONDARY_EXEC_ENABLE_EPT;
nested_vmx_ept_caps = VMX_EPT_PAGE_WALK_4_BIT |
VMX_EPTP_WB_BIT | VMX_EPT_2MB_PAGE_BIT |
VMX_EPT_INVEPT_BIT;
@@ -2276,6 +2276,10 @@ static __init void nested_vmx_setup_ctls_msrs(void)
} else
nested_vmx_ept_caps = 0;

+ if (enable_unrestricted_guest)
+ nested_vmx_secondary_ctls_high |=
+ SECONDARY_EXEC_UNRESTRICTED_GUEST;
+
/* miscellaneous data */
rdmsr(MSR_IA32_VMX_MISC, nested_vmx_misc_low, nested_vmx_misc_high);
nested_vmx_misc_low &= VMX_MISC_PREEMPTION_TIMER_RATE_MASK |
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index ba60290..f1df2e4 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -973,7 +973,7 @@ static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr)
return -EINVAL;

drv->safe_state_index = -1;
- for (i = 0; i < CPUIDLE_STATE_MAX; i++) {
+ for (i = CPUIDLE_DRIVER_STATE_START; i < CPUIDLE_STATE_MAX; i++) {
drv->states[i].name[0] = '\0';
drv->states[i].desc[0] = '\0';
}
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 2dc3b51..b71f439 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -814,10 +814,6 @@ static int __init nbd_init(void)
return -EINVAL;
}

- nbd_dev = kcalloc(nbds_max, sizeof(*nbd_dev), GFP_KERNEL);
- if (!nbd_dev)
- return -ENOMEM;
-
part_shift = 0;
if (max_part > 0) {
part_shift = fls(max_part);
@@ -839,6 +835,10 @@ static int __init nbd_init(void)
if (nbds_max > 1UL << (MINORBITS - part_shift))
return -EINVAL;

+ nbd_dev = kcalloc(nbds_max, sizeof(*nbd_dev), GFP_KERNEL);
+ if (!nbd_dev)
+ return -ENOMEM;
+
for (i = 0; i < nbds_max; i++) {
struct gendisk *disk = alloc_disk(1 << part_shift);
if (!disk)
diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index 037443c..52a3884 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -219,6 +219,12 @@ static int edma_terminate_all(struct edma_chan *echan)
* echan->edesc is NULL and exit.)
*/
if (echan->edesc) {
+ /*
+ * free the running request descriptor
+ * since it is not in any of the vdesc lists
+ */
+ edma_desc_free(&echan->edesc->vdesc);
+
echan->edesc = NULL;
edma_stop(echan->ch_num);
}
diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c
index 2f66cf4..d1cb93d 100644
--- a/drivers/dma/omap-dma.c
+++ b/drivers/dma/omap-dma.c
@@ -487,6 +487,7 @@ static int omap_dma_terminate_all(struct omap_chan *c)
* c->desc is NULL and exit.)
*/
if (c->desc) {
+ omap_dma_desc_free(&c->desc->vd);
c->desc = NULL;
/* Avoid stopping the dma twice */
if (!c->paused)
diff --git a/drivers/gpu/drm/radeon/radeon_bios.c b/drivers/gpu/drm/radeon/radeon_bios.c
index 9ab3097..c43335c 100644
--- a/drivers/gpu/drm/radeon/radeon_bios.c
+++ b/drivers/gpu/drm/radeon/radeon_bios.c
@@ -76,7 +76,7 @@ static bool igp_read_bios_from_vram(struct radeon_device *rdev)

static bool radeon_read_bios(struct radeon_device *rdev)
{
- uint8_t __iomem *bios;
+ uint8_t __iomem *bios, val1, val2;
size_t size;

rdev->bios = NULL;
@@ -86,15 +86,19 @@ static bool radeon_read_bios(struct radeon_device *rdev)
return false;
}

- if (size == 0 || bios[0] != 0x55 || bios[1] != 0xaa) {
+ val1 = readb(&bios[0]);
+ val2 = readb(&bios[1]);
+
+ if (size == 0 || val1 != 0x55 || val2 != 0xaa) {
pci_unmap_rom(rdev->pdev, bios);
return false;
}
- rdev->bios = kmemdup(bios, size, GFP_KERNEL);
+ rdev->bios = kzalloc(size, GFP_KERNEL);
if (rdev->bios == NULL) {
pci_unmap_rom(rdev->pdev, bios);
return false;
}
+ memcpy_fromio(rdev->bios, bios, size);
pci_unmap_rom(rdev->pdev, bios);
return true;
}
diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c
index d079baa..0db6d71 100644
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -478,7 +478,7 @@ static irqreturn_t bma180_trigger_handler(int irq, void *p)

mutex_lock(&data->mutex);

- for_each_set_bit(bit, indio_dev->buffer->scan_mask,
+ for_each_set_bit(bit, indio_dev->active_scan_mask,
indio_dev->masklength) {
ret = bma180_get_acc_reg(data, bit);
if (ret < 0) {
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index 059946e..c42bace 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -356,7 +356,6 @@ static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state)
{
struct iio_dev *idev = iio_trigger_get_drvdata(trig);
struct at91_adc_state *st = iio_priv(idev);
- struct iio_buffer *buffer = idev->buffer;
struct at91_adc_reg_desc *reg = st->registers;
u32 status = at91_adc_readl(st, reg->trigger_register);
int value;
@@ -376,7 +375,7 @@ static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state)
at91_adc_writel(st, reg->trigger_register,
status | value);

- for_each_set_bit(bit, buffer->scan_mask,
+ for_each_set_bit(bit, idev->active_scan_mask,
st->num_channels) {
struct iio_chan_spec const *chan = idev->channels + bit;
at91_adc_writel(st, AT91_ADC_CHER,
@@ -391,7 +390,7 @@ static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state)
at91_adc_writel(st, reg->trigger_register,
status & ~value);

- for_each_set_bit(bit, buffer->scan_mask,
+ for_each_set_bit(bit, idev->active_scan_mask,
st->num_channels) {
struct iio_chan_spec const *chan = idev->channels + bit;
at91_adc_writel(st, AT91_ADC_CHDR,
diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index 6721a43..60dc32d 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -172,12 +172,11 @@ static int tiadc_buffer_preenable(struct iio_dev *indio_dev)
static int tiadc_buffer_postenable(struct iio_dev *indio_dev)
{
struct tiadc_device *adc_dev = iio_priv(indio_dev);
- struct iio_buffer *buffer = indio_dev->buffer;
unsigned int enb = 0;
u8 bit;

tiadc_step_config(indio_dev);
- for_each_set_bit(bit, buffer->scan_mask, adc_dev->channels)
+ for_each_set_bit(bit, indio_dev->active_scan_mask, adc_dev->channels)
enb |= (get_adc_step_bit(adc_dev, bit) << 1);
adc_dev->buffer_en_ch_steps = enb;

diff --git a/drivers/iio/imu/adis_trigger.c b/drivers/iio/imu/adis_trigger.c
index e0017c2..f53e9a8 100644
--- a/drivers/iio/imu/adis_trigger.c
+++ b/drivers/iio/imu/adis_trigger.c
@@ -60,7 +60,7 @@ int adis_probe_trigger(struct adis *adis, struct iio_dev *indio_dev)
iio_trigger_set_drvdata(adis->trig, adis);
ret = iio_trigger_register(adis->trig);

- indio_dev->trig = adis->trig;
+ indio_dev->trig = iio_trigger_get(adis->trig);
if (ret)
goto error_free_irq;

diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
index 4295171..30fce67 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
@@ -25,6 +25,16 @@
#include <linux/poll.h>
#include "inv_mpu_iio.h"

+static void inv_clear_kfifo(struct inv_mpu6050_state *st)
+{
+ unsigned long flags;
+
+ /* take the spin lock sem to avoid interrupt kick in */
+ spin_lock_irqsave(&st->time_stamp_lock, flags);
+ kfifo_reset(&st->timestamps);
+ spin_unlock_irqrestore(&st->time_stamp_lock, flags);
+}
+
int inv_reset_fifo(struct iio_dev *indio_dev)
{
int result;
@@ -51,6 +61,10 @@ int inv_reset_fifo(struct iio_dev *indio_dev)
INV_MPU6050_BIT_FIFO_RST);
if (result)
goto reset_fifo_fail;
+
+ /* clear timestamps fifo */
+ inv_clear_kfifo(st);
+
/* enable interrupt */
if (st->chip_config.accl_fifo_enable ||
st->chip_config.gyro_fifo_enable) {
@@ -84,16 +98,6 @@ reset_fifo_fail:
return result;
}

-static void inv_clear_kfifo(struct inv_mpu6050_state *st)
-{
- unsigned long flags;
-
- /* take the spin lock sem to avoid interrupt kick in */
- spin_lock_irqsave(&st->time_stamp_lock, flags);
- kfifo_reset(&st->timestamps);
- spin_unlock_irqrestore(&st->time_stamp_lock, flags);
-}
-
/**
* inv_mpu6050_irq_handler() - Cache a timestamp at each data ready interrupt.
*/
@@ -185,7 +189,6 @@ end_session:
flush_fifo:
/* Flush HW and SW FIFOs. */
inv_reset_fifo(indio_dev);
- inv_clear_kfifo(st);
mutex_unlock(&indio_dev->mlock);
iio_trigger_notify_done(indio_dev->trig);

diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 18f72e3..6e4858d 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -812,8 +812,7 @@ static int iio_device_add_channel_sysfs(struct iio_dev *indio_dev,
* @attr_list: List of IIO device attributes
*
* This function frees the memory allocated for each of the IIO device
- * attributes in the list. Note: if you want to reuse the list after calling
- * this function you have to reinitialize it using INIT_LIST_HEAD().
+ * attributes in the list.
*/
void iio_free_chan_devattr_list(struct list_head *attr_list)
{
@@ -821,6 +820,7 @@ void iio_free_chan_devattr_list(struct list_head *attr_list)

list_for_each_entry_safe(p, n, attr_list, l) {
kfree(p->dev_attr.attr.name);
+ list_del(&p->l);
kfree(p);
}
}
@@ -901,6 +901,7 @@ static void iio_device_unregister_sysfs(struct iio_dev *indio_dev)

iio_free_chan_devattr_list(&indio_dev->channel_attr_list);
kfree(indio_dev->chan_attr_group.attrs);
+ indio_dev->chan_attr_group.attrs = NULL;
}

static void iio_dev_release(struct device *device)
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index c531839..7c35689 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -596,6 +596,7 @@ int iio_device_register_eventset(struct iio_dev *indio_dev)
error_free_setup_event_lines:
iio_free_chan_devattr_list(&indio_dev->event_interface->dev_attr_list);
kfree(indio_dev->event_interface);
+ indio_dev->event_interface = NULL;
error_ret:

return ret;
diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c
index a841123..055ebeb 100644
--- a/drivers/infiniband/core/umem.c
+++ b/drivers/infiniband/core/umem.c
@@ -94,6 +94,14 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr,
if (dmasync)
dma_set_attr(DMA_ATTR_WRITE_BARRIER, &attrs);

+ /*
+ * If the combination of the addr and size requested for this memory
+ * region causes an integer overflow, return error.
+ */
+ if ((PAGE_ALIGN(addr + size) <= size) ||
+ (PAGE_ALIGN(addr + size) <= addr))
+ return ERR_PTR(-EINVAL);
+
if (!can_do_mlock())
return ERR_PTR(-EPERM);

diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index cff065f..bc1bc26 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -462,6 +462,20 @@ static int psmouse_poll(struct psmouse *psmouse)
PSMOUSE_CMD_POLL | (psmouse->pktsize << 8));
}

+/*
+ * psmouse_matches_pnp_id - check if psmouse matches one of the passed in ids.
+ */
+bool psmouse_matches_pnp_id(struct psmouse *psmouse, const char * const ids[])
+{
+ int i;
+
+ if (!strncmp(psmouse->ps2dev.serio->firmware_id, "PNP:", 4))
+ for (i = 0; ids[i]; i++)
+ if (strstr(psmouse->ps2dev.serio->firmware_id, ids[i]))
+ return true;
+
+ return false;
+}

/*
* Genius NetMouse magic init.
diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h
index 2f0b39d..f4cf664 100644
--- a/drivers/input/mouse/psmouse.h
+++ b/drivers/input/mouse/psmouse.h
@@ -108,6 +108,7 @@ void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution);
psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse);
int psmouse_activate(struct psmouse *psmouse);
int psmouse_deactivate(struct psmouse *psmouse);
+bool psmouse_matches_pnp_id(struct psmouse *psmouse, const char * const ids[]);

struct psmouse_attribute {
struct device_attribute dattr;
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index a9642f5..19f5022 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -117,6 +117,85 @@ void synaptics_reset(struct psmouse *psmouse)
}

#ifdef CONFIG_MOUSE_PS2_SYNAPTICS
+#define ANY_BOARD_ID 0
+struct min_max_quirk {
+ const char * const *pnp_ids;
+ struct {
+ unsigned long int min, max;
+ } board_id;
+ int x_min, x_max, y_min, y_max;
+};
+
+static const struct min_max_quirk min_max_pnpid_table[] = {
+ {
+ (const char * const []){"LEN0033", NULL},
+ {ANY_BOARD_ID, ANY_BOARD_ID},
+ 1024, 5052, 2258, 4832
+ },
+ {
+ (const char * const []){"LEN0042", NULL},
+ {ANY_BOARD_ID, ANY_BOARD_ID},
+ 1232, 5710, 1156, 4696
+ },
+ {
+ (const char * const []){"LEN0034", "LEN0036", "LEN0037",
+ "LEN0039", "LEN2002", "LEN2004",
+ NULL},
+ {ANY_BOARD_ID, 2961},
+ 1024, 5112, 2024, 4832
+ },
+ {
+ (const char * const []){"LEN2001", NULL},
+ {ANY_BOARD_ID, ANY_BOARD_ID},
+ 1024, 5022, 2508, 4832
+ },
+ {
+ (const char * const []){"LEN2006", NULL},
+ {ANY_BOARD_ID, ANY_BOARD_ID},
+ 1264, 5675, 1171, 4688
+ },
+ { }
+};
+
+/* This list has been kindly provided by Synaptics. */
+static const char * const topbuttonpad_pnp_ids[] = {
+ "LEN0017",
+ "LEN0018",
+ "LEN0019",
+ "LEN0023",
+ "LEN002A",
+ "LEN002B",
+ "LEN002C",
+ "LEN002D",
+ "LEN002E",
+ "LEN0033", /* Helix */
+ "LEN0034", /* T431s, L440, L540, T540, W540, X1 Carbon 2nd */
+ "LEN0035", /* X240 */
+ "LEN0036", /* T440 */
+ "LEN0037", /* X1 Carbon 2nd */
+ "LEN0038",
+ "LEN0039", /* T440s */
+ "LEN0041",
+ "LEN0042", /* Yoga */
+ "LEN0045",
+ "LEN0046",
+ "LEN0047",
+ "LEN0048",
+ "LEN0049",
+ "LEN2000",
+ "LEN2001", /* Edge E431 */
+ "LEN2002", /* Edge E531 */
+ "LEN2003",
+ "LEN2004", /* L440 */
+ "LEN2005",
+ "LEN2006",
+ "LEN2007",
+ "LEN2008",
+ "LEN2009",
+ "LEN200A",
+ "LEN200B",
+ NULL
+};

/*****************************************************************************
* Synaptics communications functions
@@ -270,21 +349,11 @@ static int synaptics_identify(struct psmouse *psmouse)
* Resolution is left zero if touchpad does not support the query
*/

-static const int *quirk_min_max;
-
static int synaptics_resolution(struct psmouse *psmouse)
{
struct synaptics_data *priv = psmouse->private;
unsigned char resp[3];

- if (quirk_min_max) {
- priv->x_min = quirk_min_max[0];
- priv->x_max = quirk_min_max[1];
- priv->y_min = quirk_min_max[2];
- priv->y_max = quirk_min_max[3];
- return 0;
- }
-
if (SYN_ID_MAJOR(priv->identity) < 4)
return 0;

@@ -303,6 +372,9 @@ static int synaptics_resolution(struct psmouse *psmouse)
} else {
priv->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1);
priv->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3);
+ psmouse_info(psmouse,
+ "queried max coordinates: x [..%d], y [..%d]\n",
+ priv->x_max, priv->y_max);
}
}

@@ -320,12 +392,49 @@ static int synaptics_resolution(struct psmouse *psmouse)
} else {
priv->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1);
priv->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3);
+ psmouse_info(psmouse,
+ "queried min coordinates: x [%d..], y [%d..]\n",
+ priv->x_min, priv->y_min);
}
}

return 0;
}

+/*
+ * Apply quirk(s) if the hardware matches
+ */
+
+static void synaptics_apply_quirks(struct psmouse *psmouse)
+{
+ struct synaptics_data *priv = psmouse->private;
+ int i;
+
+ for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) {
+ if (!psmouse_matches_pnp_id(psmouse,
+ min_max_pnpid_table[i].pnp_ids))
+ continue;
+
+ if (min_max_pnpid_table[i].board_id.min != ANY_BOARD_ID &&
+ priv->board_id < min_max_pnpid_table[i].board_id.min)
+ continue;
+
+ if (min_max_pnpid_table[i].board_id.max != ANY_BOARD_ID &&
+ priv->board_id > min_max_pnpid_table[i].board_id.max)
+ continue;
+
+ priv->x_min = min_max_pnpid_table[i].x_min;
+ priv->x_max = min_max_pnpid_table[i].x_max;
+ priv->y_min = min_max_pnpid_table[i].y_min;
+ priv->y_max = min_max_pnpid_table[i].y_max;
+ psmouse_info(psmouse,
+ "quirked min/max coordinates: x [%d..%d], y [%d..%d]\n",
+ priv->x_min, priv->x_max,
+ priv->y_min, priv->y_max);
+ break;
+ }
+}
+
static int synaptics_query_hardware(struct psmouse *psmouse)
{
if (synaptics_identify(psmouse))
@@ -341,6 +450,8 @@ static int synaptics_query_hardware(struct psmouse *psmouse)
if (synaptics_resolution(psmouse))
return -1;

+ synaptics_apply_quirks(psmouse);
+
return 0;
}

@@ -1318,8 +1429,10 @@ static void set_abs_position_params(struct input_dev *dev,
input_abs_set_res(dev, y_code, priv->y_res);
}

-static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
+static void set_input_params(struct psmouse *psmouse,
+ struct synaptics_data *priv)
{
+ struct input_dev *dev = psmouse->dev;
int i;

/* Things that apply to both modes */
@@ -1388,6 +1501,8 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)

if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
__set_bit(INPUT_PROP_BUTTONPAD, dev->propbit);
+ if (psmouse_matches_pnp_id(psmouse, topbuttonpad_pnp_ids))
+ __set_bit(INPUT_PROP_TOPBUTTONPAD, dev->propbit);
/* Clickpads report only left button */
__clear_bit(BTN_RIGHT, dev->keybit);
__clear_bit(BTN_MIDDLE, dev->keybit);
@@ -1559,102 +1674,6 @@ static const struct dmi_system_id olpc_dmi_table[] __initconst = {
{ }
};

-static const struct dmi_system_id min_max_dmi_table[] __initconst = {
-#if defined(CONFIG_DMI)
- {
- /* Lenovo ThinkPad Helix */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad Helix"),
- },
- .driver_data = (int []){1024, 5052, 2258, 4832},
- },
- {
- /* Lenovo ThinkPad X240 */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X240"),
- },
- .driver_data = (int []){1232, 5710, 1156, 4696},
- },
- {
- /* Lenovo ThinkPad Edge E431 */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad Edge E431"),
- },
- .driver_data = (int []){1024, 5022, 2508, 4832},
- },
- {
- /* Lenovo ThinkPad T431s */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T431"),
- },
- .driver_data = (int []){1024, 5112, 2024, 4832},
- },
- {
- /* Lenovo ThinkPad T440s */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T440"),
- },
- .driver_data = (int []){1024, 5112, 2024, 4832},
- },
- {
- /* Lenovo ThinkPad L440 */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L440"),
- },
- .driver_data = (int []){1024, 5112, 2024, 4832},
- },
- {
- /* Lenovo ThinkPad T540p */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T540"),
- },
- .driver_data = (int []){1024, 5112, 2024, 4832},
- },
- {
- /* Lenovo ThinkPad L540 */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L540"),
- },
- .driver_data = (int []){1024, 5112, 2024, 4832},
- },
- {
- /* Lenovo ThinkPad W540 */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W540"),
- },
- .driver_data = (int []){1024, 5112, 2024, 4832},
- },
- {
- /* Lenovo Yoga S1 */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_EXACT_MATCH(DMI_PRODUCT_VERSION,
- "ThinkPad S1 Yoga"),
- },
- .driver_data = (int []){1232, 5710, 1156, 4696},
- },
- {
- /* Lenovo ThinkPad X1 Carbon Haswell (3rd generation) */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_VERSION,
- "ThinkPad X1 Carbon 2nd"),
- },
- .driver_data = (int []){1024, 5112, 2024, 4832},
- },
-#endif
- { }
-};
-
static const struct dmi_system_id forcepad_dmi_table[] __initconst = {
#if defined(CONFIG_DMI) && defined(CONFIG_X86)
{
@@ -1669,15 +1688,9 @@ static const struct dmi_system_id forcepad_dmi_table[] __initconst = {

void __init synaptics_module_init(void)
{
- const struct dmi_system_id *min_max_dmi;
-
impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table);
broken_olpc_ec = dmi_check_system(olpc_dmi_table);

- min_max_dmi = dmi_first_match(min_max_dmi_table);
- if (min_max_dmi)
- quirk_min_max = min_max_dmi->driver_data;
-
/*
* Unfortunately ForcePad capability is not exported over PS/2,
* so we have to resort to checking DMI.
@@ -1732,7 +1745,7 @@ static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode)
priv->capabilities, priv->ext_cap, priv->ext_cap_0c,
priv->board_id, priv->firmware_id);

- set_input_params(psmouse->dev, priv);
+ set_input_params(psmouse, priv);

/*
* Encode touchpad model so that it can be used to set
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 4de2571..dd6d14d 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -783,6 +783,17 @@ static int i8042_pnp_aux_irq;
static char i8042_pnp_kbd_name[32];
static char i8042_pnp_aux_name[32];

+static void i8042_pnp_id_to_string(struct pnp_id *id, char *dst, int dst_size)
+{
+ strlcpy(dst, "PNP:", dst_size);
+
+ while (id) {
+ strlcat(dst, " ", dst_size);
+ strlcat(dst, id->id, dst_size);
+ id = id->next;
+ }
+}
+
static int i8042_pnp_kbd_probe(struct pnp_dev *dev, const struct pnp_device_id *did)
{
if (pnp_port_valid(dev, 0) && pnp_port_len(dev, 0) == 1)
@@ -799,6 +810,8 @@ static int i8042_pnp_kbd_probe(struct pnp_dev *dev, const struct pnp_device_id *
strlcat(i8042_pnp_kbd_name, ":", sizeof(i8042_pnp_kbd_name));
strlcat(i8042_pnp_kbd_name, pnp_dev_name(dev), sizeof(i8042_pnp_kbd_name));
}
+ i8042_pnp_id_to_string(dev->id, i8042_kbd_firmware_id,
+ sizeof(i8042_kbd_firmware_id));

/* Keyboard ports are always supposed to be wakeup-enabled */
device_set_wakeup_enable(&dev->dev, true);
@@ -823,6 +836,8 @@ static int i8042_pnp_aux_probe(struct pnp_dev *dev, const struct pnp_device_id *
strlcat(i8042_pnp_aux_name, ":", sizeof(i8042_pnp_aux_name));
strlcat(i8042_pnp_aux_name, pnp_dev_name(dev), sizeof(i8042_pnp_aux_name));
}
+ i8042_pnp_id_to_string(dev->id, i8042_aux_firmware_id,
+ sizeof(i8042_aux_firmware_id));

i8042_pnp_aux_devices++;
return 0;
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index ff91085..eb796ff 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -91,6 +91,8 @@ MODULE_PARM_DESC(debug, "Turn i8042 debugging mode on and off");
#endif

static bool i8042_bypass_aux_irq_test;
+static char i8042_kbd_firmware_id[128];
+static char i8042_aux_firmware_id[128];

#include "i8042.h"

@@ -1232,6 +1234,8 @@ static int __init i8042_create_kbd_port(void)
serio->dev.parent = &i8042_platform_device->dev;
strlcpy(serio->name, "i8042 KBD port", sizeof(serio->name));
strlcpy(serio->phys, I8042_KBD_PHYS_DESC, sizeof(serio->phys));
+ strlcpy(serio->firmware_id, i8042_kbd_firmware_id,
+ sizeof(serio->firmware_id));

port->serio = serio;
port->irq = I8042_KBD_IRQ;
@@ -1258,6 +1262,8 @@ static int __init i8042_create_aux_port(int idx)
if (idx < 0) {
strlcpy(serio->name, "i8042 AUX port", sizeof(serio->name));
strlcpy(serio->phys, I8042_AUX_PHYS_DESC, sizeof(serio->phys));
+ strlcpy(serio->firmware_id, i8042_aux_firmware_id,
+ sizeof(serio->firmware_id));
serio->close = i8042_port_close;
} else {
snprintf(serio->name, sizeof(serio->name), "i8042 AUX%d port", idx);
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index 8f4c4ab..b29134d 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -451,6 +451,13 @@ static ssize_t serio_set_bind_mode(struct device *dev, struct device_attribute *
return retval;
}

+static ssize_t firmware_id_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct serio *serio = to_serio_port(dev);
+
+ return sprintf(buf, "%s\n", serio->firmware_id);
+}
+
static DEVICE_ATTR_RO(type);
static DEVICE_ATTR_RO(proto);
static DEVICE_ATTR_RO(id);
@@ -473,12 +480,14 @@ static DEVICE_ATTR_RO(modalias);
static DEVICE_ATTR_WO(drvctl);
static DEVICE_ATTR(description, S_IRUGO, serio_show_description, NULL);
static DEVICE_ATTR(bind_mode, S_IWUSR | S_IRUGO, serio_show_bind_mode, serio_set_bind_mode);
+static DEVICE_ATTR_RO(firmware_id);

static struct attribute *serio_device_attrs[] = {
&dev_attr_modalias.attr,
&dev_attr_description.attr,
&dev_attr_drvctl.attr,
&dev_attr_bind_mode.attr,
+ &dev_attr_firmware_id.attr,
NULL
};

@@ -921,9 +930,14 @@ static int serio_uevent(struct device *dev, struct kobj_uevent_env *env)
SERIO_ADD_UEVENT_VAR("SERIO_PROTO=%02x", serio->id.proto);
SERIO_ADD_UEVENT_VAR("SERIO_ID=%02x", serio->id.id);
SERIO_ADD_UEVENT_VAR("SERIO_EXTRA=%02x", serio->id.extra);
+
SERIO_ADD_UEVENT_VAR("MODALIAS=serio:ty%02Xpr%02Xid%02Xex%02X",
serio->id.type, serio->id.proto, serio->id.id, serio->id.extra);

+ if (serio->firmware_id[0])
+ SERIO_ADD_UEVENT_VAR("SERIO_FIRMWARE_ID=%s",
+ serio->firmware_id);
+
return 0;
}
#undef SERIO_ADD_UEVENT_VAR
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_common.h b/drivers/media/platform/s5p-mfc/s5p_mfc_common.h
index 823812c..b8734ed 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_common.h
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_common.h
@@ -30,7 +30,7 @@

/* Offset base used to differentiate between CAPTURE and OUTPUT
* while mmaping */
-#define DST_QUEUE_OFF_BASE (TASK_SIZE / 2)
+#define DST_QUEUE_OFF_BASE (1 << 30)

#define MFC_BANK1_ALLOC_CTX 0
#define MFC_BANK2_ALLOC_CTX 1
diff --git a/drivers/media/platform/sh_veu.c b/drivers/media/platform/sh_veu.c
index 744e43b..f698e32 100644
--- a/drivers/media/platform/sh_veu.c
+++ b/drivers/media/platform/sh_veu.c
@@ -1183,6 +1183,7 @@ static int sh_veu_probe(struct platform_device *pdev)
}

*vdev = sh_veu_videodev;
+ vdev->v4l2_dev = &veu->v4l2_dev;
spin_lock_init(&veu->lock);
mutex_init(&veu->fop_lock);
vdev->lock = &veu->fop_lock;
diff --git a/drivers/mfd/kempld-core.c b/drivers/mfd/kempld-core.c
index 38917a8..2df3cbc 100644
--- a/drivers/mfd/kempld-core.c
+++ b/drivers/mfd/kempld-core.c
@@ -629,7 +629,7 @@ static int __init kempld_init(void)
if (force_device_id[0]) {
for (id = kempld_dmi_table; id->matches[0].slot != DMI_NONE; id++)
if (strstr(id->ident, force_device_id))
- if (id->callback && id->callback(id))
+ if (id->callback && !id->callback(id))
break;
if (id->matches[0].slot == DMI_NONE)
return -ENODEV;
diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index dcf2ee8..dc0c56a 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -2456,7 +2456,7 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev)
out:
if (res) {
/* no suitable interface, frame not sent */
- kfree_skb(skb);
+ dev_kfree_skb_any(skb);
}

return NETDEV_TX_OK;
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index b215df1..51d09f9 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -1481,7 +1481,7 @@ int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev)

if (res) {
/* no suitable interface, frame not sent */
- kfree_skb(skb);
+ dev_kfree_skb_any(skb);
}

return NETDEV_TX_OK;
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index a656d4c..db8844d 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3577,7 +3577,7 @@ void bond_xmit_slave_id(struct bonding *bond, struct sk_buff *skb, int slave_id)
}
}
/* no slave that can tx has been found */
- kfree_skb(skb);
+ dev_kfree_skb_any(skb);
}

/**
@@ -3656,7 +3656,7 @@ static int bond_xmit_activebackup(struct sk_buff *skb, struct net_device *bond_d
if (slave)
bond_dev_queue_xmit(bond, skb, slave->dev);
else
- kfree_skb(skb);
+ dev_kfree_skb_any(skb);

return NETDEV_TX_OK;
}
@@ -3704,7 +3704,7 @@ static int bond_xmit_broadcast(struct sk_buff *skb, struct net_device *bond_dev)
if (slave && IS_UP(slave->dev) && slave->link == BOND_LINK_UP)
bond_dev_queue_xmit(bond, skb, slave->dev);
else
- kfree_skb(skb);
+ dev_kfree_skb_any(skb);

return NETDEV_TX_OK;
}
@@ -3795,7 +3795,7 @@ static netdev_tx_t __bond_start_xmit(struct sk_buff *skb, struct net_device *dev
pr_err("%s: Error: Unknown bonding mode %d\n",
dev->name, bond->params.mode);
WARN_ON_ONCE(1);
- kfree_skb(skb);
+ dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
}
@@ -3816,7 +3816,7 @@ static netdev_tx_t bond_start_xmit(struct sk_buff *skb, struct net_device *dev)
if (bond_has_slaves(bond))
ret = __bond_start_xmit(skb, dev);
else
- kfree_skb(skb);
+ dev_kfree_skb_any(skb);
rcu_read_unlock();

return ret;
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index deea3a9..0542497 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -1081,12 +1081,19 @@ static int flexcan_probe(struct platform_device *pdev)
const struct flexcan_devtype_data *devtype_data;
struct net_device *dev;
struct flexcan_priv *priv;
+ struct regulator *reg_xceiver;
struct resource *mem;
struct clk *clk_ipg = NULL, *clk_per = NULL;
void __iomem *base;
int err, irq;
u32 clock_freq = 0;

+ reg_xceiver = devm_regulator_get(&pdev->dev, "xceiver");
+ if (PTR_ERR(reg_xceiver) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+ else if (IS_ERR(reg_xceiver))
+ reg_xceiver = NULL;
+
if (pdev->dev.of_node)
of_property_read_u32(pdev->dev.of_node,
"clock-frequency", &clock_freq);
@@ -1148,9 +1155,7 @@ static int flexcan_probe(struct platform_device *pdev)
priv->pdata = dev_get_platdata(&pdev->dev);
priv->devtype_data = devtype_data;

- priv->reg_xceiver = devm_regulator_get(&pdev->dev, "xceiver");
- if (IS_ERR(priv->reg_xceiver))
- priv->reg_xceiver = NULL;
+ priv->reg_xceiver = reg_xceiver;

netif_napi_add(dev, &priv->napi, flexcan_poll, FLEXCAN_NAPI_WEIGHT);

diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c
index 38492e0..26e0653 100644
--- a/drivers/net/ethernet/amd/pcnet32.c
+++ b/drivers/net/ethernet/amd/pcnet32.c
@@ -1516,7 +1516,7 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
{
struct pcnet32_private *lp;
int i, media;
- int fdx, mii, fset, dxsuflo;
+ int fdx, mii, fset, dxsuflo, sram;
int chip_version;
char *chipname;
struct net_device *dev;
@@ -1553,7 +1553,7 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
}

/* initialize variables */
- fdx = mii = fset = dxsuflo = 0;
+ fdx = mii = fset = dxsuflo = sram = 0;
chip_version = (chip_version >> 12) & 0xffff;

switch (chip_version) {
@@ -1586,6 +1586,7 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
chipname = "PCnet/FAST III 79C973"; /* PCI */
fdx = 1;
mii = 1;
+ sram = 1;
break;
case 0x2626:
chipname = "PCnet/Home 79C978"; /* PCI */
@@ -1609,6 +1610,7 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
chipname = "PCnet/FAST III 79C975"; /* PCI */
fdx = 1;
mii = 1;
+ sram = 1;
break;
case 0x2628:
chipname = "PCnet/PRO 79C976";
@@ -1637,6 +1639,31 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
dxsuflo = 1;
}

+ /*
+ * The Am79C973/Am79C975 controllers come with 12K of SRAM
+ * which we can use for the Tx/Rx buffers but most importantly,
+ * the use of SRAM allow us to use the BCR18:NOUFLO bit to avoid
+ * Tx fifo underflows.
+ */
+ if (sram) {
+ /*
+ * The SRAM is being configured in two steps. First we
+ * set the SRAM size in the BCR25:SRAM_SIZE bits. According
+ * to the datasheet, each bit corresponds to a 512-byte
+ * page so we can have at most 24 pages. The SRAM_SIZE
+ * holds the value of the upper 8 bits of the 16-bit SRAM size.
+ * The low 8-bits start at 0x00 and end at 0xff. So the
+ * address range is from 0x0000 up to 0x17ff. Therefore,
+ * the SRAM_SIZE is set to 0x17. The next step is to set
+ * the BCR26:SRAM_BND midway through so the Tx and Rx
+ * buffers can share the SRAM equally.
+ */
+ a->write_bcr(ioaddr, 25, 0x17);
+ a->write_bcr(ioaddr, 26, 0xc);
+ /* And finally enable the NOUFLO bit */
+ a->write_bcr(ioaddr, 18, a->read_bcr(ioaddr, 18) | (1 << 11));
+ }
+
dev = alloc_etherdev(sizeof(*lp));
if (!dev) {
ret = -ENOMEM;
diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c
index 8409bc1..fc40022 100644
--- a/drivers/net/ethernet/broadcom/bnx2.c
+++ b/drivers/net/ethernet/broadcom/bnx2.c
@@ -2869,7 +2869,7 @@ bnx2_tx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
sw_cons = BNX2_NEXT_TX_BD(sw_cons);

tx_bytes += skb->len;
- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);
tx_pkt++;
if (tx_pkt == budget)
break;
@@ -6622,7 +6622,7 @@ bnx2_start_xmit(struct sk_buff *skb, struct net_device *dev)

mapping = dma_map_single(&bp->pdev->dev, skb->data, len, PCI_DMA_TODEVICE);
if (dma_mapping_error(&bp->pdev->dev, mapping)) {
- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}

@@ -6715,7 +6715,7 @@ dma_error:
PCI_DMA_TODEVICE);
}

- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index fd16844..a2b0e6a 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -6577,7 +6577,7 @@ static void tg3_tx(struct tg3_napi *tnapi)
pkts_compl++;
bytes_compl += skb->len;

- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);

if (unlikely(tx_bug)) {
tg3_tx_recover(tp);
@@ -6909,7 +6909,7 @@ static int tg3_rx(struct tg3_napi *tnapi, int budget)
if (len > (tp->dev->mtu + ETH_HLEN) &&
skb->protocol != htons(ETH_P_8021Q) &&
skb->protocol != htons(ETH_P_8021AD)) {
- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);
goto drop_it_no_recycle;
}

@@ -7792,7 +7792,7 @@ static int tigon3_dma_hwbug_workaround(struct tg3_napi *tnapi,
PCI_DMA_TODEVICE);
/* Make sure the mapping succeeded */
if (pci_dma_mapping_error(tp->pdev, new_addr)) {
- dev_kfree_skb(new_skb);
+ dev_kfree_skb_any(new_skb);
ret = -1;
} else {
u32 save_entry = *entry;
@@ -7807,13 +7807,13 @@ static int tigon3_dma_hwbug_workaround(struct tg3_napi *tnapi,
new_skb->len, base_flags,
mss, vlan)) {
tg3_tx_skb_unmap(tnapi, save_entry, -1);
- dev_kfree_skb(new_skb);
+ dev_kfree_skb_any(new_skb);
ret = -1;
}
}
}

- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);
*pskb = new_skb;
return ret;
}
@@ -7856,7 +7856,7 @@ static int tg3_tso_bug(struct tg3 *tp, struct sk_buff *skb)
} while (segs);

tg3_tso_bug_end:
- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);

return NETDEV_TX_OK;
}
@@ -8094,7 +8094,7 @@ dma_error:
tg3_tx_skb_unmap(tnapi, tnapi->tx_prod, --i);
tnapi->tx_buffers[tnapi->tx_prod].skb = NULL;
drop:
- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);
drop_nofree:
tp->tx_dropped++;
return NETDEV_TX_OK;
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index a67ddf8..8e410b5 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -1881,7 +1881,7 @@ static u16 be_tx_compl_process(struct be_adapter *adapter,
queue_tail_inc(txq);
} while (cur_index != last_index);

- kfree_skb(sent_skb);
+ dev_kfree_skb_any(sent_skb);
return num_wrbs;
}

diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index b14d790..fd66535 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -2139,13 +2139,13 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
skb_new = skb_realloc_headroom(skb, fcb_len);
if (!skb_new) {
dev->stats.tx_errors++;
- kfree_skb(skb);
+ dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}

if (skb->sk)
skb_set_owner_w(skb_new, skb->sk);
- consume_skb(skb);
+ dev_consume_skb_any(skb);
skb = skb_new;
}

diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_main.c b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
index 57e390c..f42c201 100644
--- a/drivers/net/ethernet/intel/ixgb/ixgb_main.c
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
@@ -1521,12 +1521,12 @@ ixgb_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
int tso;

if (test_bit(__IXGB_DOWN, &adapter->flags)) {
- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}

if (skb->len <= 0) {
- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}

@@ -1543,7 +1543,7 @@ ixgb_xmit_frame(struct sk_buff *skb, struct net_device *netdev)

tso = ixgb_tso(adapter, skb);
if (tso < 0) {
- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index c23f2ae..8126b04 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -2366,13 +2366,6 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
netif_carrier_off(dev);
mlx4_en_set_default_moderation(priv);

- err = register_netdev(dev);
- if (err) {
- en_err(priv, "Netdev registration failed for port %d\n", port);
- goto out;
- }
- priv->registered = 1;
-
en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num);
en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num);

@@ -2403,6 +2396,14 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
queue_delayed_work(mdev->workqueue, &priv->service_task,
SERVICE_TASK_DELAY);

+ err = register_netdev(dev);
+ if (err) {
+ en_err(priv, "Netdev registration failed for port %d\n", port);
+ goto out;
+ }
+
+ priv->registered = 1;
+
return 0;

out:
diff --git a/drivers/net/ethernet/realtek/8139cp.c b/drivers/net/ethernet/realtek/8139cp.c
index 737c1a8..a3c1daa 100644
--- a/drivers/net/ethernet/realtek/8139cp.c
+++ b/drivers/net/ethernet/realtek/8139cp.c
@@ -899,7 +899,7 @@ out_unlock:

return NETDEV_TX_OK;
out_dma_error:
- kfree_skb(skb);
+ dev_kfree_skb_any(skb);
cp->dev->stats.tx_dropped++;
goto out_unlock;
}
diff --git a/drivers/net/ethernet/realtek/8139too.c b/drivers/net/ethernet/realtek/8139too.c
index da5972e..8cb2f35 100644
--- a/drivers/net/ethernet/realtek/8139too.c
+++ b/drivers/net/ethernet/realtek/8139too.c
@@ -1717,9 +1717,9 @@ static netdev_tx_t rtl8139_start_xmit (struct sk_buff *skb,
if (len < ETH_ZLEN)
memset(tp->tx_buf[entry], 0, ETH_ZLEN);
skb_copy_and_csum_dev(skb, tp->tx_buf[entry]);
- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);
} else {
- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);
dev->stats.tx_dropped++;
return NETDEV_TX_OK;
}
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index c737f0e..7202311 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -5835,7 +5835,7 @@ static void rtl8169_tx_clear_range(struct rtl8169_private *tp, u32 start,
tp->TxDescArray + entry);
if (skb) {
tp->dev->stats.tx_dropped++;
- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);
tx_skb->skb = NULL;
}
}
@@ -6060,7 +6060,7 @@ static netdev_tx_t rtl8169_start_xmit(struct sk_buff *skb,
err_dma_1:
rtl8169_unmap_tx_skb(d, tp->tx_skb + entry, txd);
err_dma_0:
- dev_kfree_skb(skb);
+ dev_kfree_skb_any(skb);
err_update_stats:
dev->stats.tx_dropped++;
return NETDEV_TX_OK;
@@ -6143,7 +6143,7 @@ static void rtl_tx(struct net_device *dev, struct rtl8169_private *tp)
tp->tx_stats.packets++;
tp->tx_stats.bytes += tx_skb->skb->len;
u64_stats_update_end(&tp->tx_stats.syncp);
- dev_kfree_skb(tx_skb->skb);
+ dev_kfree_skb_any(tx_skb->skb);
tx_skb->skb = NULL;
}
dirty_tx++;
diff --git a/drivers/net/wireless/iwlwifi/dvm/dev.h b/drivers/net/wireless/iwlwifi/dvm/dev.h
index 7434d9e..0db52ca 100644
--- a/drivers/net/wireless/iwlwifi/dvm/dev.h
+++ b/drivers/net/wireless/iwlwifi/dvm/dev.h
@@ -708,7 +708,6 @@ struct iwl_priv {
unsigned long reload_jiffies;
int reload_count;
bool ucode_loaded;
- bool init_ucode_run; /* Don't run init uCode again */

u8 plcp_delta_threshold;

diff --git a/drivers/net/wireless/iwlwifi/dvm/ucode.c b/drivers/net/wireless/iwlwifi/dvm/ucode.c
index 6363794..0223d06 100644
--- a/drivers/net/wireless/iwlwifi/dvm/ucode.c
+++ b/drivers/net/wireless/iwlwifi/dvm/ucode.c
@@ -424,9 +424,6 @@ int iwl_run_init_ucode(struct iwl_priv *priv)
if (!priv->fw->img[IWL_UCODE_INIT].sec[0].len)
return 0;

- if (priv->init_ucode_run)
- return 0;
-
iwl_init_notification_wait(&priv->notif_wait, &calib_wait,
calib_complete, ARRAY_SIZE(calib_complete),
iwlagn_wait_calib, priv);
@@ -446,8 +443,6 @@ int iwl_run_init_ucode(struct iwl_priv *priv)
*/
ret = iwl_wait_notification(&priv->notif_wait, &calib_wait,
UCODE_CALIB_TIMEOUT);
- if (!ret)
- priv->init_ucode_run = true;

goto out;

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 9f02c5a..ef22ea8 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -1074,8 +1074,7 @@ err:

static int xennet_change_mtu(struct net_device *dev, int mtu)
{
- int max = xennet_can_sg(dev) ?
- XEN_NETIF_MAX_TX_SIZE - MAX_TCP_HEADER : ETH_DATA_LEN;
+ int max = xennet_can_sg(dev) ? XEN_NETIF_MAX_TX_SIZE : ETH_DATA_LEN;

if (mtu > max)
return -EINVAL;
@@ -1356,8 +1355,6 @@ static struct net_device *xennet_create_dev(struct xenbus_device *dev)
SET_ETHTOOL_OPS(netdev, &xennet_ethtool_ops);
SET_NETDEV_DEV(netdev, &dev->dev);

- netif_set_gso_max_size(netdev, XEN_NETIF_MAX_TX_SIZE - MAX_TCP_HEADER);
-
np->netdev = netdev;

netif_carrier_off(netdev);
diff --git a/drivers/pci/hotplug/cpci_hotplug_pci.c b/drivers/pci/hotplug/cpci_hotplug_pci.c
index d3add98..4bc53f2 100644
--- a/drivers/pci/hotplug/cpci_hotplug_pci.c
+++ b/drivers/pci/hotplug/cpci_hotplug_pci.c
@@ -282,12 +282,13 @@ int __ref cpci_configure_slot(struct slot *slot)
}
parent = slot->dev->bus;

- list_for_each_entry(dev, &parent->devices, bus_list)
+ list_for_each_entry(dev, &parent->devices, bus_list) {
if (PCI_SLOT(dev->devfn) != PCI_SLOT(slot->devfn))
continue;
if ((dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) ||
(dev->hdr_type == PCI_HEADER_TYPE_CARDBUS))
pci_hp_add_bridge(dev);
+ }


pci_assign_unassigned_bridge_resources(parent->self);
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 2d5a97d..4fbc8db 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -5684,9 +5684,9 @@ free_port:
hba_free:
if (phba->msix_enabled)
pci_disable_msix(phba->pcidev);
- iscsi_host_remove(phba->shost);
pci_dev_put(phba->pcidev);
iscsi_host_free(phba->shost);
+ pci_set_drvdata(pcidev, NULL);
disable_pci:
pci_disable_device(pcidev);
return ret;
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 64e487a..719bd82 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1258,9 +1258,11 @@ int scsi_prep_state_check(struct scsi_device *sdev, struct request *req)
"rejecting I/O to dead device\n");
ret = BLKPREP_KILL;
break;
- case SDEV_QUIESCE:
case SDEV_BLOCK:
case SDEV_CREATED_BLOCK:
+ ret = BLKPREP_DEFER;
+ break;
+ case SDEV_QUIESCE:
/*
* If the devices is blocked we defer normal commands.
*/
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index a416aec..5fc2f0a 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -829,13 +829,14 @@ void spi_finalize_current_message(struct spi_master *master)
"failed to unprepare message: %d\n", ret);
}
}
+
+ trace_spi_message_done(mesg);
+
master->cur_msg_prepared = false;

mesg->state = NULL;
if (mesg->complete)
mesg->complete(mesg->context);
-
- trace_spi_message_done(mesg);
}
EXPORT_SYMBOL_GPL(spi_finalize_current_message);

diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 8789ba0..505aa4e 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -1164,7 +1164,7 @@ iscsit_handle_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
* traditional iSCSI block I/O.
*/
if (iscsit_allocate_iovecs(cmd) < 0) {
- return iscsit_add_reject_cmd(cmd,
+ return iscsit_reject_cmd(cmd,
ISCSI_REASON_BOOKMARK_NO_RESOURCES, buf);
}
immed_data = cmd->immediate_data;
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 7bdaa14..0a92635 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -246,8 +246,6 @@ static void n_tty_write_wakeup(struct tty_struct *tty)

static void n_tty_check_throttle(struct tty_struct *tty)
{
- if (tty->driver->type == TTY_DRIVER_TYPE_PTY)
- return;
/*
* Check the remaining room for the input canonicalization
* mode. We don't want to throttle the driver if we're in
@@ -1510,23 +1508,6 @@ n_tty_receive_char_lnext(struct tty_struct *tty, unsigned char c, char flag)
n_tty_receive_char_flagged(tty, c, flag);
}

-/**
- * n_tty_receive_buf - data receive
- * @tty: terminal device
- * @cp: buffer
- * @fp: flag buffer
- * @count: characters
- *
- * Called by the terminal driver when a block of characters has
- * been received. This function must be called from soft contexts
- * not from interrupt context. The driver is responsible for making
- * calls one at a time and in order (or using flush_to_ldisc)
- *
- * n_tty_receive_buf()/producer path:
- * claims non-exclusive termios_rwsem
- * publishes read_head and canon_head
- */
-
static void
n_tty_receive_buf_real_raw(struct tty_struct *tty, const unsigned char *cp,
char *fp, int count)
@@ -1682,47 +1663,85 @@ static void __receive_buf(struct tty_struct *tty, const unsigned char *cp,
}
}

-static void n_tty_receive_buf(struct tty_struct *tty, const unsigned char *cp,
- char *fp, int count)
+/**
+ * n_tty_receive_buf_common - process input
+ * @tty: device to receive input
+ * @cp: input chars
+ * @fp: flags for each char (if NULL, all chars are TTY_NORMAL)
+ * @count: number of input chars in @cp
+ *
+ * Called by the terminal driver when a block of characters has
+ * been received. This function must be called from soft contexts
+ * not from interrupt context. The driver is responsible for making
+ * calls one at a time and in order (or using flush_to_ldisc)
+ *
+ * Returns the # of input chars from @cp which were processed.
+ *
+ * In canonical mode, the maximum line length is 4096 chars (including
+ * the line termination char); lines longer than 4096 chars are
+ * truncated. After 4095 chars, input data is still processed but
+ * not stored. Overflow processing ensures the tty can always
+ * receive more input until at least one line can be read.
+ *
+ * In non-canonical mode, the read buffer will only accept 4095 chars;
+ * this provides the necessary space for a newline char if the input
+ * mode is switched to canonical.
+ *
+ * Note it is possible for the read buffer to _contain_ 4096 chars
+ * in non-canonical mode: the read buffer could already contain the
+ * maximum canon line of 4096 chars when the mode is switched to
+ * non-canonical.
+ *
+ * n_tty_receive_buf()/producer path:
+ * claims non-exclusive termios_rwsem
+ * publishes commit_head or canon_head
+ */
+static int
+n_tty_receive_buf_common(struct tty_struct *tty, const unsigned char *cp,
+ char *fp, int count, int flow)
{
- int room, n;
+ struct n_tty_data *ldata = tty->disc_data;
+ int room, n, rcvd = 0, overflow;

down_read(&tty->termios_rwsem);

while (1) {
- room = receive_room(tty);
+ /*
+ * When PARMRK is set, each input char may take up to 3 chars
+ * in the read buf; reduce the buffer space avail by 3x
+ *
+ * If we are doing input canonicalization, and there are no
+ * pending newlines, let characters through without limit, so
+ * that erase characters will be handled. Other excess
+ * characters will be beeped.
+ *
+ * paired with store in *_copy_from_read_buf() -- guarantees
+ * the consumer has loaded the data in read_buf up to the new
+ * read_tail (so this producer will not overwrite unread data)
+ */
+ size_t tail = ldata->read_tail;
+
+ room = N_TTY_BUF_SIZE - (ldata->read_head - tail);
+ if (I_PARMRK(tty))
+ room = (room + 2) / 3;
+ room--;
+ if (room <= 0) {
+ overflow = ldata->icanon && ldata->canon_head == tail;
+ if (overflow && room < 0)
+ ldata->read_head--;
+ room = overflow;
+ ldata->no_room = flow && !room;
+ } else
+ overflow = 0;
+
n = min(count, room);
if (!n)
break;
- __receive_buf(tty, cp, fp, n);
- cp += n;
- if (fp)
- fp += n;
- count -= n;
- }

- tty->receive_room = room;
- n_tty_check_throttle(tty);
- up_read(&tty->termios_rwsem);
-}
+ /* ignore parity errors if handling overflow */
+ if (!overflow || !fp || *fp != TTY_PARITY)
+ __receive_buf(tty, cp, fp, n);

-static int n_tty_receive_buf2(struct tty_struct *tty, const unsigned char *cp,
- char *fp, int count)
-{
- struct n_tty_data *ldata = tty->disc_data;
- int room, n, rcvd = 0;
-
- down_read(&tty->termios_rwsem);
-
- while (1) {
- room = receive_room(tty);
- n = min(count, room);
- if (!n) {
- if (!room)
- ldata->no_room = 1;
- break;
- }
- __receive_buf(tty, cp, fp, n);
cp += n;
if (fp)
fp += n;
@@ -1731,12 +1750,34 @@ static int n_tty_receive_buf2(struct tty_struct *tty, const unsigned char *cp,
}

tty->receive_room = room;
- n_tty_check_throttle(tty);
+
+ /* Unthrottle if handling overflow on pty */
+ if (tty->driver->type == TTY_DRIVER_TYPE_PTY) {
+ if (overflow) {
+ tty_set_flow_change(tty, TTY_UNTHROTTLE_SAFE);
+ tty_unthrottle_safe(tty);
+ __tty_set_flow_change(tty, 0);
+ }
+ } else
+ n_tty_check_throttle(tty);
+
up_read(&tty->termios_rwsem);

return rcvd;
}

+static void n_tty_receive_buf(struct tty_struct *tty, const unsigned char *cp,
+ char *fp, int count)
+{
+ n_tty_receive_buf_common(tty, cp, fp, count, 0);
+}
+
+static int n_tty_receive_buf2(struct tty_struct *tty, const unsigned char *cp,
+ char *fp, int count)
+{
+ return n_tty_receive_buf_common(tty, cp, fp, count, 1);
+}
+
int is_ignored(int sig)
{
return (sigismember(&current->blocked, sig) ||
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 8978dc9..8eeb118 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -362,6 +362,9 @@ static void lpuart_setup_watermark(struct lpuart_port *sport)
writeb(val | UARTPFIFO_TXFE | UARTPFIFO_RXFE,
sport->port.membase + UARTPFIFO);

+ /* explicitly clear RDRF */
+ readb(sport->port.membase + UARTSR1);
+
/* flush Tx and Rx FIFO */
writeb(UARTCFIFO_TXFLUSH | UARTCFIFO_RXFLUSH,
sport->port.membase + UARTCFIFO);
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 44f152d..9b69daf 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -383,6 +383,10 @@ static void xhci_clear_port_change_bit(struct xhci_hcd *xhci, u16 wValue,
status = PORT_PLC;
port_change_bit = "link state";
break;
+ case USB_PORT_FEAT_C_PORT_CONFIG_ERROR:
+ status = PORT_CEC;
+ port_change_bit = "config error";
+ break;
default:
/* Should never happen */
return;
@@ -584,6 +588,8 @@ static u32 xhci_get_port_status(struct usb_hcd *hcd,
status |= USB_PORT_STAT_C_LINK_STATE << 16;
if ((raw_port_status & PORT_WRC))
status |= USB_PORT_STAT_C_BH_RESET << 16;
+ if ((raw_port_status & PORT_CEC))
+ status |= USB_PORT_STAT_C_CONFIG_ERROR << 16;
}

if (hcd->speed != HCD_USB3) {
@@ -1002,6 +1008,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
case USB_PORT_FEAT_C_OVER_CURRENT:
case USB_PORT_FEAT_C_ENABLE:
case USB_PORT_FEAT_C_PORT_LINK_STATE:
+ case USB_PORT_FEAT_C_PORT_CONFIG_ERROR:
xhci_clear_port_change_bit(xhci, wValue, wIndex,
port_array[wIndex], temp);
break;
@@ -1067,7 +1074,7 @@ int xhci_hub_status_data(struct usb_hcd *hcd, char *buf)
*/
status = bus_state->resuming_ports;

- mask = PORT_CSC | PORT_PEC | PORT_OCC | PORT_PLC | PORT_WRC;
+ mask = PORT_CSC | PORT_PEC | PORT_OCC | PORT_PLC | PORT_WRC | PORT_CEC;

spin_lock_irqsave(&xhci->lock, flags);
/* For each port, did anything change? If so, set that bit in buf. */
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index d7f2e18c..e681201 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -111,6 +111,7 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
xhci->quirks |= XHCI_LPM_SUPPORT;
xhci->quirks |= XHCI_INTEL_HOST;
+ xhci->quirks |= XHCI_AVOID_BEI;
}
if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
pdev->device == PCI_DEVICE_ID_INTEL_PANTHERPOINT_XHCI) {
@@ -126,7 +127,6 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
* PPT chipsets.
*/
xhci->quirks |= XHCI_SPURIOUS_REBOOT;
- xhci->quirks |= XHCI_AVOID_BEI;
}
if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
pdev->device == PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI) {
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index c8ee4c0..60591ae 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -618,6 +618,7 @@ static struct usb_device_id id_table_combined [] = {
.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
{ USB_DEVICE(FTDI_VID, FTDI_NT_ORIONLXM_PID),
.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
+ { USB_DEVICE(FTDI_VID, FTDI_SYNAPSE_SS200_PID) },
/*
* ELV devices:
*/
@@ -1905,8 +1906,12 @@ static int ftdi_8u2232c_probe(struct usb_serial *serial)
{
struct usb_device *udev = serial->dev;

- if ((udev->manufacturer && !strcmp(udev->manufacturer, "CALAO Systems")) ||
- (udev->product && !strcmp(udev->product, "BeagleBone/XDS100V2")))
+ if (udev->manufacturer && !strcmp(udev->manufacturer, "CALAO Systems"))
+ return ftdi_jtag_probe(serial);
+
+ if (udev->product &&
+ (!strcmp(udev->product, "BeagleBone/XDS100V2") ||
+ !strcmp(udev->product, "SNAP Connect E10")))
return ftdi_jtag_probe(serial);

return 0;
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 56b1b55..4e4f46f 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -561,6 +561,12 @@
*/
#define FTDI_NT_ORIONLXM_PID 0x7c90 /* OrionLXm Substation Automation Platform */

+/*
+ * Synapse Wireless product ids (FTDI_VID)
+ * http://www.synapse-wireless.com
+ */
+#define FTDI_SYNAPSE_SS200_PID 0x9090 /* SS200 - SNAP Stick 200 */
+

/********************************/
/** third-party VID/PID combos **/
diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c
index 5f1d382..47e0de0 100644
--- a/drivers/usb/serial/keyspan_pda.c
+++ b/drivers/usb/serial/keyspan_pda.c
@@ -62,6 +62,7 @@ struct keyspan_pda_private {
/* For Xircom PGSDB9 and older Entregra version of the same device */
#define XIRCOM_VENDOR_ID 0x085a
#define XIRCOM_FAKE_ID 0x8027
+#define XIRCOM_FAKE_ID_2 0x8025 /* "PGMFHUB" serial */
#define ENTREGRA_VENDOR_ID 0x1645
#define ENTREGRA_FAKE_ID 0x8093

@@ -71,6 +72,7 @@ static const struct usb_device_id id_table_combined[] = {
#endif
#ifdef XIRCOM
{ USB_DEVICE(XIRCOM_VENDOR_ID, XIRCOM_FAKE_ID) },
+ { USB_DEVICE(XIRCOM_VENDOR_ID, XIRCOM_FAKE_ID_2) },
{ USB_DEVICE(ENTREGRA_VENDOR_ID, ENTREGRA_FAKE_ID) },
#endif
{ USB_DEVICE(KEYSPAN_VENDOR_ID, KEYSPAN_PDA_ID) },
@@ -94,6 +96,7 @@ static const struct usb_device_id id_table_fake[] = {
#ifdef XIRCOM
static const struct usb_device_id id_table_fake_xircom[] = {
{ USB_DEVICE(XIRCOM_VENDOR_ID, XIRCOM_FAKE_ID) },
+ { USB_DEVICE(XIRCOM_VENDOR_ID, XIRCOM_FAKE_ID_2) },
{ USB_DEVICE(ENTREGRA_VENDOR_ID, ENTREGRA_FAKE_ID) },
{ }
};
diff --git a/fs/aio.c b/fs/aio.c
index a17e9ac..08bcd65 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -709,6 +709,9 @@ static struct kioctx *ioctx_alloc(unsigned nr_events)
err_cleanup:
aio_nr_sub(ctx->max_reqs);
err_ctx:
+ atomic_set(&ctx->dead, 1);
+ if (ctx->mmap_size)
+ vm_munmap(ctx->mmap_base, ctx->mmap_size);
aio_free_ring(ctx);
err:
mutex_unlock(&ctx->ring_lock);
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 3530d7c..6bc5b78 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -1821,6 +1821,7 @@ refind_writable:
cifsFileInfo_put(inv_file);
spin_lock(&cifs_file_list_lock);
++refind;
+ inv_file = NULL;
goto refind_writable;
}
}
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 34a17d4..30f3eb5 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -630,7 +630,8 @@ smb2_clone_range(const unsigned int xid,

/* No need to change MaxChunks since already set to 1 */
chunk_sizes_updated = true;
- }
+ } else
+ goto cchunk_out;
}

cchunk_out:
diff --git a/fs/exec.c b/fs/exec.c
index 5743b8f..f1a8244 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1267,6 +1267,53 @@ static int check_unsafe_exec(struct linux_binprm *bprm)
return res;
}

+static void bprm_fill_uid(struct linux_binprm *bprm)
+{
+ struct inode *inode;
+ unsigned int mode;
+ kuid_t uid;
+ kgid_t gid;
+
+ /* clear any previous set[ug]id data from a previous binary */
+ bprm->cred->euid = current_euid();
+ bprm->cred->egid = current_egid();
+
+ if (bprm->file->f_path.mnt->mnt_flags & MNT_NOSUID)
+ return;
+
+ if (current->no_new_privs)
+ return;
+
+ inode = file_inode(bprm->file);
+ mode = ACCESS_ONCE(inode->i_mode);
+ if (!(mode & (S_ISUID|S_ISGID)))
+ return;
+
+ /* Be careful if suid/sgid is set */
+ mutex_lock(&inode->i_mutex);
+
+ /* reload atomically mode/uid/gid now that lock held */
+ mode = inode->i_mode;
+ uid = inode->i_uid;
+ gid = inode->i_gid;
+ mutex_unlock(&inode->i_mutex);
+
+ /* We ignore suid/sgid if there are no mappings for them in the ns */
+ if (!kuid_has_mapping(bprm->cred->user_ns, uid) ||
+ !kgid_has_mapping(bprm->cred->user_ns, gid))
+ return;
+
+ if (mode & S_ISUID) {
+ bprm->per_clear |= PER_CLEAR_ON_SETID;
+ bprm->cred->euid = uid;
+ }
+
+ if ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) {
+ bprm->per_clear |= PER_CLEAR_ON_SETID;
+ bprm->cred->egid = gid;
+ }
+}
+
/*
* Fill the binprm structure from the inode.
* Check permissions, then read the first 128 (BINPRM_BUF_SIZE) bytes
@@ -1275,36 +1322,9 @@ static int check_unsafe_exec(struct linux_binprm *bprm)
*/
int prepare_binprm(struct linux_binprm *bprm)
{
- struct inode *inode = file_inode(bprm->file);
- umode_t mode = inode->i_mode;
int retval;

-
- /* clear any previous set[ug]id data from a previous binary */
- bprm->cred->euid = current_euid();
- bprm->cred->egid = current_egid();
-
- if (!(bprm->file->f_path.mnt->mnt_flags & MNT_NOSUID) &&
- !current->no_new_privs &&
- kuid_has_mapping(bprm->cred->user_ns, inode->i_uid) &&
- kgid_has_mapping(bprm->cred->user_ns, inode->i_gid)) {
- /* Set-uid? */
- if (mode & S_ISUID) {
- bprm->per_clear |= PER_CLEAR_ON_SETID;
- bprm->cred->euid = inode->i_uid;
- }
-
- /* Set-gid? */
- /*
- * If setgid is set but no group execute bit then this
- * is a candidate for mandatory locking, not a setgid
- * executable.
- */
- if ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) {
- bprm->per_clear |= PER_CLEAR_ON_SETID;
- bprm->cred->egid = inode->i_gid;
- }
- }
+ bprm_fill_uid(bprm);

/* fill in binprm security blob */
retval = security_bprm_set_creds(bprm);
diff --git a/fs/hfsplus/brec.c b/fs/hfsplus/brec.c
index 6e560d5..754fdf8 100644
--- a/fs/hfsplus/brec.c
+++ b/fs/hfsplus/brec.c
@@ -131,13 +131,16 @@ skip:
hfs_bnode_write(node, entry, data_off + key_len, entry_len);
hfs_bnode_dump(node);

- if (new_node) {
- /* update parent key if we inserted a key
- * at the start of the first node
- */
- if (!rec && new_node != node)
- hfs_brec_update_parent(fd);
+ /*
+ * update parent key if we inserted a key
+ * at the start of the node and it is not the new node
+ */
+ if (!rec && new_node != node) {
+ hfs_bnode_read_key(node, fd->search_key, data_off + size);
+ hfs_brec_update_parent(fd);
+ }

+ if (new_node) {
hfs_bnode_put(fd->bnode);
if (!new_node->parent) {
hfs_btree_inc_height(tree);
@@ -168,9 +171,6 @@ skip:
goto again;
}

- if (!rec)
- hfs_brec_update_parent(fd);
-
return 0;
}

@@ -370,6 +370,8 @@ again:
if (IS_ERR(parent))
return PTR_ERR(parent);
__hfs_brec_find(parent, fd, hfs_find_rec_by_key);
+ if (fd->record < 0)
+ return -ENOENT;
hfs_bnode_dump(parent);
rec = fd->record;

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 5850a81..7f47331 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -2368,10 +2368,14 @@ out_dio:
/* buffered aio wouldn't have proper lock coverage today */
BUG_ON(ret == -EIOCBQUEUED && !(file->f_flags & O_DIRECT));

+ if (unlikely(written <= 0))
+ goto no_sync;
+
if (((file->f_flags & O_DSYNC) && !direct_io) || IS_SYNC(inode) ||
((file->f_flags & O_DIRECT) && !direct_io)) {
- ret = filemap_fdatawrite_range(file->f_mapping, *ppos,
- *ppos + count - 1);
+ ret = filemap_fdatawrite_range(file->f_mapping,
+ iocb->ki_pos - written,
+ iocb->ki_pos - 1);
if (ret < 0)
written = ret;

@@ -2384,10 +2388,12 @@ out_dio:
}

if (!ret)
- ret = filemap_fdatawait_range(file->f_mapping, *ppos,
- *ppos + count - 1);
+ ret = filemap_fdatawait_range(file->f_mapping,
+ iocb->ki_pos - written,
+ iocb->ki_pos - 1);
}

+no_sync:
/*
* deep in g_f_a_w_n()->ocfs2_direct_IO we pass in a ocfs2_dio_end_io
* function pointer which is called when o_direct io completes so that
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index 238ef0e..484d48b 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -170,7 +170,9 @@ enum rq_flag_bits {
__REQ_ELVPRIV, /* elevator private data attached */
__REQ_FAILED, /* set if the request failed */
__REQ_QUIET, /* don't worry about errors */
- __REQ_PREEMPT, /* set for "ide_preempt" requests */
+ __REQ_PREEMPT, /* set for "ide_preempt" requests and also
+ for requests for which the SCSI "quiesce"
+ state must be ignored. */
__REQ_ALLOCED, /* request came from our alloc pool */
__REQ_COPY_USER, /* contains copies of user pages */
__REQ_FLUSH_SEQ, /* request for flush sequence */
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index dfc5271..abe5098 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1838,6 +1838,12 @@ void netdev_freemem(struct net_device *dev);
void synchronize_net(void);
int init_dummy_netdev(struct net_device *dev);

+DECLARE_PER_CPU(int, xmit_recursion);
+static inline int dev_recursion_level(void)
+{
+ return this_cpu_read(xmit_recursion);
+}
+
struct net_device *dev_get_by_index(struct net *net, int ifindex);
struct net_device *__dev_get_by_index(struct net *net, int ifindex);
struct net_device *dev_get_by_index_rcu(struct net *net, int ifindex);
diff --git a/include/linux/serio.h b/include/linux/serio.h
index 36aac73..9f779c7 100644
--- a/include/linux/serio.h
+++ b/include/linux/serio.h
@@ -23,6 +23,7 @@ struct serio {

char name[32];
char phys[32];
+ char firmware_id[128];

bool manual_bind;

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 1389001..f06c9a8a 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -638,6 +638,7 @@ bool skb_try_coalesce(struct sk_buff *to, struct sk_buff *from,

struct sk_buff *__alloc_skb(unsigned int size, gfp_t priority, int flags,
int node);
+struct sk_buff *__build_skb(void *data, unsigned int frag_size);
struct sk_buff *build_skb(void *data, unsigned int frag_size);
static inline struct sk_buff *alloc_skb(unsigned int size,
gfp_t priority)
diff --git a/include/net/ip.h b/include/net/ip.h
index 4613b19..9651ebf 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -379,22 +379,6 @@ static __inline__ void inet_reset_saddr(struct sock *sk)

#endif

-static inline int sk_mc_loop(struct sock *sk)
-{
- if (!sk)
- return 1;
- switch (sk->sk_family) {
- case AF_INET:
- return inet_sk(sk)->mc_loop;
-#if IS_ENABLED(CONFIG_IPV6)
- case AF_INET6:
- return inet6_sk(sk)->mc_loop;
-#endif
- }
- WARN_ON(1);
- return 1;
-}
-
bool ip_call_ra_chain(struct sk_buff *skb);

/*
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index 9302699..299833a 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -181,7 +181,8 @@ int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *));

static inline int ip6_skb_dst_mtu(struct sk_buff *skb)
{
- struct ipv6_pinfo *np = skb->sk ? inet6_sk(skb->sk) : NULL;
+ struct ipv6_pinfo *np = skb->sk && !dev_recursion_level() ?
+ inet6_sk(skb->sk) : NULL;

return (np && np->pmtudisc == IPV6_PMTUDISC_PROBE) ?
skb_dst(skb)->dev->mtu : dst_mtu(skb_dst(skb));
diff --git a/include/net/sock.h b/include/net/sock.h
index 5db5b7f..c4f2c65 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1798,6 +1798,8 @@ struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie);

struct dst_entry *sk_dst_check(struct sock *sk, u32 cookie);

+bool sk_mc_loop(struct sock *sk);
+
static inline bool sk_can_gso(const struct sock *sk)
{
return net_gso_ok(sk->sk_route_caps, sk->sk_gso_type);
diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
index bd24470..f484952 100644
--- a/include/uapi/linux/input.h
+++ b/include/uapi/linux/input.h
@@ -164,6 +164,7 @@ struct input_keymap_entry {
#define INPUT_PROP_DIRECT 0x01 /* direct input devices */
#define INPUT_PROP_BUTTONPAD 0x02 /* has button(s) under pad */
#define INPUT_PROP_SEMI_MT 0x03 /* touch rectangle only */
+#define INPUT_PROP_TOPBUTTONPAD 0x04 /* softbuttons at top of pad */

#define INPUT_PROP_MAX 0x1f
#define INPUT_PROP_CNT (INPUT_PROP_MAX + 1)
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 68105f2..c0c8911 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -4185,6 +4185,13 @@ static void perf_pending_event(struct irq_work *entry)
{
struct perf_event *event = container_of(entry,
struct perf_event, pending);
+ int rctx;
+
+ rctx = perf_swevent_get_recursion_context();
+ /*
+ * If we 'fail' here, that's OK, it means recursion is already disabled
+ * and we won't recurse 'further'.
+ */

if (event->pending_disable) {
event->pending_disable = 0;
@@ -4195,6 +4202,9 @@ static void perf_pending_event(struct irq_work *entry)
event->pending_wakeup = 0;
perf_event_wakeup(event);
}
+
+ if (rctx >= 0)
+ perf_swevent_put_recursion_context(rctx);
}

/*
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 489f235..38c966a 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1017,6 +1017,10 @@ static pg_data_t __ref *hotadd_new_pgdat(int nid, u64 start)
return NULL;

arch_refresh_nodedata(nid, pgdat);
+ } else {
+ /* Reset the nr_zones and classzone_idx to 0 before reuse */
+ pgdat->nr_zones = 0;
+ pgdat->classzone_idx = 0;
}

/* we can use NODE_DATA(nid) from here */
@@ -1862,15 +1866,6 @@ void try_offline_node(int nid)
if (is_vmalloc_addr(zone->wait_table))
vfree(zone->wait_table);
}
-
- /*
- * Since there is no way to guarentee the address of pgdat/zone is not
- * on stack of any kernel threads or used by other kernel objects
- * without reference counting or other symchronizing method, do not
- * reset node_data and free pgdat here. Just reset it to 0 and reuse
- * the memory when the node is online again.
- */
- memset(pgdat, 0, sizeof(*pgdat));
}
EXPORT_SYMBOL(try_offline_node);

diff --git a/mm/mmap.c b/mm/mmap.c
index e359e9e..e3bd471 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -746,10 +746,8 @@ again: remove_next = 1 + (end > next->vm_end);

importer->anon_vma = exporter->anon_vma;
error = anon_vma_clone(importer, exporter);
- if (error) {
- importer->anon_vma = NULL;
+ if (error)
return error;
- }
}
}

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 145044b..1802b62 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -878,8 +878,11 @@ static void bdi_update_write_bandwidth(struct backing_dev_info *bdi,
* bw * elapsed + write_bandwidth * (period - elapsed)
* write_bandwidth = ---------------------------------------------------
* period
+ *
+ * @written may have decreased due to account_page_redirty().
+ * Avoid underflowing @bw calculation.
*/
- bw = written - bdi->written_stamp;
+ bw = written - min(written, bdi->written_stamp);
bw *= HZ;
if (unlikely(elapsed > period)) {
do_div(bw, elapsed);
@@ -943,7 +946,7 @@ static void global_update_bandwidth(unsigned long thresh,
unsigned long now)
{
static DEFINE_SPINLOCK(dirty_lock);
- static unsigned long update_time;
+ static unsigned long update_time = INITIAL_JIFFIES;

/*
* check locklessly first to optimize away locking for the most time
diff --git a/mm/rmap.c b/mm/rmap.c
index ea81a86..f748513 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -287,6 +287,13 @@ int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src)
return 0;

enomem_failure:
+ /*
+ * dst->anon_vma is dropped here otherwise its degree can be incorrectly
+ * decremented in unlink_anon_vmas().
+ * We can safely do this because callers of anon_vma_clone() don't care
+ * about dst->anon_vma if anon_vma_clone() failed.
+ */
+ dst->anon_vma = NULL;
unlink_anon_vmas(dst);
return -ENOMEM;
}
diff --git a/net/core/dev.c b/net/core/dev.c
index 7fb4317..36e12a3 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2768,7 +2768,9 @@ static void skb_update_prio(struct sk_buff *skb)
#define skb_update_prio(skb)
#endif

-static DEFINE_PER_CPU(int, xmit_recursion);
+DEFINE_PER_CPU(int, xmit_recursion);
+EXPORT_SYMBOL(xmit_recursion);
+
#define RECURSION_LIMIT 10

/**
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index c538d8a..76b86c7 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1762,10 +1762,10 @@ static int rtnl_group_changelink(const struct sk_buff *skb,
struct ifinfomsg *ifm,
struct nlattr **tb)
{
- struct net_device *dev;
+ struct net_device *dev, *aux;
int err;

- for_each_netdev(net, dev) {
+ for_each_netdev_safe(net, dev, aux) {
if (dev->group == group) {
err = do_setlink(skb, dev, ifm, tb, NULL, 0);
if (err < 0)
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 6e42045..1008034 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -276,13 +276,14 @@ nodata:
EXPORT_SYMBOL(__alloc_skb);

/**
- * build_skb - build a network buffer
+ * __build_skb - build a network buffer
* @data: data buffer provided by caller
- * @frag_size: size of fragment, or 0 if head was kmalloced
+ * @frag_size: size of data, or 0 if head was kmalloced
*
* Allocate a new &sk_buff. Caller provides space holding head and
* skb_shared_info. @data must have been allocated by kmalloc() only if
- * @frag_size is 0, otherwise data should come from the page allocator.
+ * @frag_size is 0, otherwise data should come from the page allocator
+ * or vmalloc()
* The return is the new skb buffer.
* On a failure the return is %NULL, and @data is not freed.
* Notes :
@@ -293,7 +294,7 @@ EXPORT_SYMBOL(__alloc_skb);
* before giving packet to stack.
* RX rings only contains data buffers, not full skbs.
*/
-struct sk_buff *build_skb(void *data, unsigned int frag_size)
+struct sk_buff *__build_skb(void *data, unsigned int frag_size)
{
struct skb_shared_info *shinfo;
struct sk_buff *skb;
@@ -307,7 +308,6 @@ struct sk_buff *build_skb(void *data, unsigned int frag_size)

memset(skb, 0, offsetof(struct sk_buff, tail));
skb->truesize = SKB_TRUESIZE(size);
- skb->head_frag = frag_size != 0;
atomic_set(&skb->users, 1);
skb->head = data;
skb->data = data;
@@ -324,6 +324,23 @@ struct sk_buff *build_skb(void *data, unsigned int frag_size)

return skb;
}
+
+/* build_skb() is wrapper over __build_skb(), that specifically
+ * takes care of skb->head and skb->pfmemalloc
+ * This means that if @frag_size is not zero, then @data must be backed
+ * by a page fragment, not kmalloc() or vmalloc()
+ */
+struct sk_buff *build_skb(void *data, unsigned int frag_size)
+{
+ struct sk_buff *skb = __build_skb(data, frag_size);
+
+ if (skb && frag_size) {
+ skb->head_frag = 1;
+ if (virt_to_head_page(data)->pfmemalloc)
+ skb->pfmemalloc = 1;
+ }
+ return skb;
+}
EXPORT_SYMBOL(build_skb);

struct netdev_alloc_cache {
@@ -350,7 +367,8 @@ refill:
gfp_t gfp = gfp_mask;

if (order)
- gfp |= __GFP_COMP | __GFP_NOWARN;
+ gfp |= __GFP_COMP | __GFP_NOWARN |
+ __GFP_NOMEMALLOC;
nc->frag.page = alloc_pages(gfp, order);
if (likely(nc->frag.page))
break;
diff --git a/net/core/sock.c b/net/core/sock.c
index ee847676..8235166 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -659,6 +659,25 @@ static inline void sock_valbool_flag(struct sock *sk, int bit, int valbool)
sock_reset_flag(sk, bit);
}

+bool sk_mc_loop(struct sock *sk)
+{
+ if (dev_recursion_level())
+ return false;
+ if (!sk)
+ return true;
+ switch (sk->sk_family) {
+ case AF_INET:
+ return inet_sk(sk)->mc_loop;
+#if IS_ENABLED(CONFIG_IPV6)
+ case AF_INET6:
+ return inet6_sk(sk)->mc_loop;
+#endif
+ }
+ WARN_ON(1);
+ return true;
+}
+EXPORT_SYMBOL(sk_mc_loop);
+
/*
* This is meant for all protocols to use and covers goings on
* at the socket level. Everything here is generic.
diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c
index 31ee5c6..479e8a6 100644
--- a/net/ipv4/ip_forward.c
+++ b/net/ipv4/ip_forward.c
@@ -126,6 +126,9 @@ int ip_forward(struct sk_buff *skb)
struct rtable *rt; /* Route we use */
struct ip_options *opt = &(IPCB(skb)->opt);

+ if (unlikely(skb->sk))
+ goto drop;
+
if (skb_warn_if_lro(skb))
goto drop;

diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 7e079a2..64735ad 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -154,6 +154,7 @@ void ping_unhash(struct sock *sk)
if (sk_hashed(sk)) {
write_lock_bh(&ping_table.lock);
hlist_nulls_del(&sk->sk_nulls_node);
+ sk_nulls_node_init(&sk->sk_nulls_node);
sock_put(sk);
isk->inet_num = 0;
isk->inet_sport = 0;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 2ab6b821..2cc1313 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -3060,10 +3060,11 @@ static int tcp_clean_rtx_queue(struct sock *sk, int prior_fackets,
if (seq_rtt < 0) {
seq_rtt = ca_seq_rtt;
}
- if (!(sacked & TCPCB_SACKED_ACKED))
+ if (!(sacked & TCPCB_SACKED_ACKED)) {
reord = min(pkts_acked, reord);
- if (!after(scb->end_seq, tp->high_seq))
- flag |= FLAG_ORIG_SACK_ACKED;
+ if (!after(scb->end_seq, tp->high_seq))
+ flag |= FLAG_ORIG_SACK_ACKED;
+ }
}

if (sacked & TCPCB_SACKED_ACKED)
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 9f627b9..1f2cd0f 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1875,7 +1875,7 @@ void tcp_v4_early_demux(struct sk_buff *skb)
skb->sk = sk;
skb->destructor = sock_edemux;
if (sk->sk_state != TCP_TIME_WAIT) {
- struct dst_entry *dst = sk->sk_rx_dst;
+ struct dst_entry *dst = ACCESS_ONCE(sk->sk_rx_dst);

if (dst)
dst = dst_check(dst, 0);
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index b692b0b..3adf183 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2569,39 +2569,65 @@ begin_fwd:
}
}

-/* Send a fin. The caller locks the socket for us. This cannot be
- * allowed to fail queueing a FIN frame under any circumstances.
+/* We allow to exceed memory limits for FIN packets to expedite
+ * connection tear down and (memory) recovery.
+ * Otherwise tcp_send_fin() could be tempted to either delay FIN
+ * or even be forced to close flow without any FIN.
+ */
+static void sk_forced_wmem_schedule(struct sock *sk, int size)
+{
+ int amt, status;
+
+ if (size <= sk->sk_forward_alloc)
+ return;
+ amt = sk_mem_pages(size);
+ sk->sk_forward_alloc += amt * SK_MEM_QUANTUM;
+ sk_memory_allocated_add(sk, amt, &status);
+}
+
+/* Send a FIN. The caller locks the socket for us.
+ * We should try to send a FIN packet really hard, but eventually give up.
*/
void tcp_send_fin(struct sock *sk)
{
+ struct sk_buff *skb, *tskb = tcp_write_queue_tail(sk);
struct tcp_sock *tp = tcp_sk(sk);
- struct sk_buff *skb = tcp_write_queue_tail(sk);
- int mss_now;

- /* Optimization, tack on the FIN if we have a queue of
- * unsent frames. But be careful about outgoing SACKS
- * and IP options.
+ /* Optimization, tack on the FIN if we have one skb in write queue and
+ * this skb was not yet sent, or we are under memory pressure.
+ * Note: in the latter case, FIN packet will be sent after a timeout,
+ * as TCP stack thinks it has already been transmitted.
*/
- mss_now = tcp_current_mss(sk);
-
- if (tcp_send_head(sk) != NULL) {
- TCP_SKB_CB(skb)->tcp_flags |= TCPHDR_FIN;
- TCP_SKB_CB(skb)->end_seq++;
+ if (tskb && (tcp_send_head(sk) || sk_under_memory_pressure(sk))) {
+coalesce:
+ TCP_SKB_CB(tskb)->tcp_flags |= TCPHDR_FIN;
+ TCP_SKB_CB(tskb)->end_seq++;
tp->write_seq++;
+ if (!tcp_send_head(sk)) {
+ /* This means tskb was already sent.
+ * Pretend we included the FIN on previous transmit.
+ * We need to set tp->snd_nxt to the value it would have
+ * if FIN had been sent. This is because retransmit path
+ * does not change tp->snd_nxt.
+ */
+ tp->snd_nxt++;
+ return;
+ }
} else {
- /* Socket is locked, keep trying until memory is available. */
- for (;;) {
- skb = sk_stream_alloc_skb(sk, 0, sk->sk_allocation);
- if (skb)
- break;
- yield();
+ skb = alloc_skb_fclone(MAX_TCP_HEADER, sk->sk_allocation);
+ if (unlikely(!skb)) {
+ if (tskb)
+ goto coalesce;
+ return;
}
+ skb_reserve(skb, MAX_TCP_HEADER);
+ sk_forced_wmem_schedule(sk, skb->truesize);
/* FIN eats a sequence byte, write_seq advanced by tcp_queue_skb(). */
tcp_init_nondata_skb(skb, tp->write_seq,
TCPHDR_ACK | TCPHDR_FIN);
tcp_queue_skb(sk, skb);
}
- __tcp_push_pending_frames(sk, mss_now, TCP_NAGLE_OFF);
+ __tcp_push_pending_frames(sk, tcp_current_mss(sk), TCP_NAGLE_OFF);
}

/* We get here when a process closes a file descriptor (either due to
@@ -2770,6 +2796,8 @@ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst,
}
#endif

+ /* Do not fool tcpdump (if any), clean our debris */
+ skb->tstamp.tv64 = 0;
return skb;
}
EXPORT_SYMBOL(tcp_make_synack);
@@ -2907,6 +2935,7 @@ static int tcp_send_syn_data(struct sock *sk, struct sk_buff *syn)
goto fallback;
syn_data->ip_summed = CHECKSUM_PARTIAL;
memcpy(syn_data->cb, syn->cb, sizeof(syn->cb));
+ skb_shinfo(syn_data)->gso_segs = 1;
if (unlikely(memcpy_fromiovecend(skb_put(syn_data, space),
fo->data->msg_iov, 0, space))) {
kfree_skb(syn_data);
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 66fe1f64..627ce5a 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -534,7 +534,8 @@ int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
{
struct sk_buff *frag;
struct rt6_info *rt = (struct rt6_info*)skb_dst(skb);
- struct ipv6_pinfo *np = skb->sk ? inet6_sk(skb->sk) : NULL;
+ struct ipv6_pinfo *np = skb->sk && !dev_recursion_level() ?
+ inet6_sk(skb->sk) : NULL;
struct ipv6hdr *tmp_hdr;
struct frag_hdr *fh;
unsigned int mtu, hlen, left, len;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index d540da2..c5851aa 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1605,7 +1605,7 @@ static void tcp_v6_early_demux(struct sk_buff *skb)
skb->sk = sk;
skb->destructor = sock_edemux;
if (sk->sk_state != TCP_TIME_WAIT) {
- struct dst_entry *dst = sk->sk_rx_dst;
+ struct dst_entry *dst = ACCESS_ONCE(sk->sk_rx_dst);

if (dst)
dst = dst_check(dst, inet6_sk(sk)->rx_dst_cookie);
diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c
index 31bf258..9608c6e 100644
--- a/net/mac80211/agg-rx.c
+++ b/net/mac80211/agg-rx.c
@@ -49,8 +49,6 @@ static void ieee80211_free_tid_rx(struct rcu_head *h)
container_of(h, struct tid_ampdu_rx, rcu_head);
int i;

- del_timer_sync(&tid_rx->reorder_timer);
-
for (i = 0; i < tid_rx->buf_size; i++)
dev_kfree_skb(tid_rx->reorder_buf[i]);
kfree(tid_rx->reorder_buf);
@@ -93,6 +91,12 @@ void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,

del_timer_sync(&tid_rx->session_timer);

+ /* make sure ieee80211_sta_reorder_release() doesn't re-arm the timer */
+ spin_lock_bh(&tid_rx->reorder_lock);
+ tid_rx->removed = true;
+ spin_unlock_bh(&tid_rx->reorder_lock);
+ del_timer_sync(&tid_rx->reorder_timer);
+
call_rcu(&tid_rx->rcu_head, ieee80211_free_tid_rx);
}

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 94c9df7..0c0b3f7 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -811,9 +811,10 @@ static void ieee80211_sta_reorder_release(struct ieee80211_sub_if_data *sdata,

set_release_timer:

- mod_timer(&tid_agg_rx->reorder_timer,
- tid_agg_rx->reorder_time[j] + 1 +
- HT_RX_REORDER_BUF_TIMEOUT);
+ if (!tid_agg_rx->removed)
+ mod_timer(&tid_agg_rx->reorder_timer,
+ tid_agg_rx->reorder_time[j] + 1 +
+ HT_RX_REORDER_BUF_TIMEOUT);
} else {
del_timer(&tid_agg_rx->reorder_timer);
}
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 69bfe88..20443ee 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -162,6 +162,7 @@ struct tid_ampdu_tx {
* @dialog_token: dialog token for aggregation session
* @rcu_head: RCU head used for freeing this struct
* @reorder_lock: serializes access to reorder buffer, see below.
+ * @removed: this session is removed (but might have been found due to RCU)
*
* This structure's lifetime is managed by RCU, assignments to
* the array holding it must hold the aggregation mutex.
@@ -185,6 +186,7 @@ struct tid_ampdu_rx {
u16 buf_size;
u16 timeout;
u8 dialog_token;
+ bool removed;
};

/**
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index a4fbf5d..8a2b386 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1616,13 +1616,11 @@ static struct sk_buff *netlink_alloc_large_skb(unsigned int size,
if (data == NULL)
return NULL;

- skb = build_skb(data, size);
+ skb = __build_skb(data, size);
if (skb == NULL)
vfree(data);
- else {
- skb->head_frag = 0;
+ else
skb->destructor = netlink_skb_destructor;
- }

return skb;
}
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index 392ab0f..9977902 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -152,7 +152,7 @@ static ssize_t sel_write_enforce(struct file *file, const char __user *buf,
goto out;

/* No partial writes. */
- length = EINVAL;
+ length = -EINVAL;
if (*ppos != 0)
goto out;

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index deec881..1bfebba 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -2830,6 +2830,8 @@ static void alc283_init(struct hda_codec *codec)

if (!hp_pin)
return;
+
+ msleep(30);
hp_pin_sense = snd_hda_jack_detect(codec, hp_pin);

/* Index 0x43 Direct Drive HP AMP LPM Control 1 */
@@ -3977,6 +3979,7 @@ enum {
ALC269_FIXUP_QUANTA_MUTE,
ALC269_FIXUP_LIFEBOOK,
ALC269_FIXUP_LIFEBOOK_EXTMIC,
+ ALC269_FIXUP_LIFEBOOK_HP_PIN,
ALC269_FIXUP_AMIC,
ALC269_FIXUP_DMIC,
ALC269VB_FIXUP_AMIC,
@@ -4107,6 +4110,13 @@ static const struct hda_fixup alc269_fixups[] = {
{ }
},
},
+ [ALC269_FIXUP_LIFEBOOK_HP_PIN] = {
+ .type = HDA_FIXUP_PINS,
+ .v.pins = (const struct hda_pintbl[]) {
+ { 0x21, 0x0221102f }, /* HP out */
+ { }
+ },
+ },
[ALC269_FIXUP_AMIC] = {
.type = HDA_FIXUP_PINS,
.v.pins = (const struct hda_pintbl[]) {
@@ -4532,6 +4542,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
SND_PCI_QUIRK(0x104d, 0x9084, "Sony VAIO", ALC275_FIXUP_SONY_HWEQ),
SND_PCI_QUIRK_VENDOR(0x104d, "Sony VAIO", ALC269_FIXUP_SONY_VAIO),
SND_PCI_QUIRK(0x10cf, 0x1475, "Lifebook", ALC269_FIXUP_LIFEBOOK),
+ SND_PCI_QUIRK(0x10cf, 0x15dc, "Lifebook T731", ALC269_FIXUP_LIFEBOOK_HP_PIN),
SND_PCI_QUIRK(0x10cf, 0x1845, "Lifebook U904", ALC269_FIXUP_LIFEBOOK_EXTMIC),
SND_PCI_QUIRK(0x17aa, 0x20f2, "Thinkpad SL410/510", ALC269_FIXUP_SKU_IGNORE),
SND_PCI_QUIRK(0x17aa, 0x215e, "Thinkpad L512", ALC269_FIXUP_SKU_IGNORE),
diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index 5a723df..a82ec53 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -178,6 +178,7 @@ static const struct rc_config {
{ USB_ID(0x041e, 0x3040), 2, 2, 6, 6, 2, 0x6e91 }, /* Live! 24-bit */
{ USB_ID(0x041e, 0x3042), 0, 1, 1, 1, 1, 0x000d }, /* Usb X-Fi S51 */
{ USB_ID(0x041e, 0x30df), 0, 1, 1, 1, 1, 0x000d }, /* Usb X-Fi S51 Pro */
+ { USB_ID(0x041e, 0x3237), 0, 1, 1, 1, 1, 0x000d }, /* Usb X-Fi S51 Pro */
{ USB_ID(0x041e, 0x3048), 2, 2, 6, 6, 2, 0x6e91 }, /* Toshiba SB0500 */
};


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