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Message-ID: <20130405174125.GB971@kroah.com>
Date: Fri, 5 Apr 2013 10:41:25 -0700
From: Greg KH <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org,
Andrew Morton <akpm@...ux-foundation.org>,
torvalds@...ux-foundation.org, stable@...r.kernel.org
Cc: lwn@....net, Jiri Slaby <jslaby@...e.cz>
Subject: Re: Linux 3.0.72
diff --git a/Makefile b/Makefile
index fbba8bc..533c56b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 3
PATCHLEVEL = 0
-SUBLEVEL = 71
+SUBLEVEL = 72
EXTRAVERSION =
NAME = Sneaky Weasel
diff --git a/arch/arm/include/asm/signal.h b/arch/arm/include/asm/signal.h
index 43ba0fb..559ee24 100644
--- a/arch/arm/include/asm/signal.h
+++ b/arch/arm/include/asm/signal.h
@@ -127,6 +127,7 @@ struct sigaction {
__sigrestore_t sa_restorer;
sigset_t sa_mask; /* mask last for extensibility */
};
+#define __ARCH_HAS_SA_RESTORER
struct k_sigaction {
struct sigaction sa;
diff --git a/arch/avr32/include/asm/signal.h b/arch/avr32/include/asm/signal.h
index 8790dfc..e6952a0 100644
--- a/arch/avr32/include/asm/signal.h
+++ b/arch/avr32/include/asm/signal.h
@@ -128,6 +128,7 @@ struct sigaction {
__sigrestore_t sa_restorer;
sigset_t sa_mask; /* mask last for extensibility */
};
+#define __ARCH_HAS_SA_RESTORER
struct k_sigaction {
struct sigaction sa;
diff --git a/arch/cris/include/asm/signal.h b/arch/cris/include/asm/signal.h
index ea6af9a..057fea2 100644
--- a/arch/cris/include/asm/signal.h
+++ b/arch/cris/include/asm/signal.h
@@ -122,6 +122,7 @@ struct sigaction {
void (*sa_restorer)(void);
sigset_t sa_mask; /* mask last for extensibility */
};
+#define __ARCH_HAS_SA_RESTORER
struct k_sigaction {
struct sigaction sa;
diff --git a/arch/h8300/include/asm/signal.h b/arch/h8300/include/asm/signal.h
index fd8b66e..8695707 100644
--- a/arch/h8300/include/asm/signal.h
+++ b/arch/h8300/include/asm/signal.h
@@ -121,6 +121,7 @@ struct sigaction {
void (*sa_restorer)(void);
sigset_t sa_mask; /* mask last for extensibility */
};
+#define __ARCH_HAS_SA_RESTORER
struct k_sigaction {
struct sigaction sa;
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 8213efe..a874213 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -1168,6 +1168,11 @@ out:
#define PALE_RESET_ENTRY 0x80000000ffffffb0UL
+bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu)
+{
+ return irqchip_in_kernel(vcpu->kcm) == (vcpu->arch.apic != NULL);
+}
+
int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
{
struct kvm_vcpu *v;
diff --git a/arch/m32r/include/asm/signal.h b/arch/m32r/include/asm/signal.h
index b2eeb0d..802d561 100644
--- a/arch/m32r/include/asm/signal.h
+++ b/arch/m32r/include/asm/signal.h
@@ -123,6 +123,7 @@ struct sigaction {
__sigrestore_t sa_restorer;
sigset_t sa_mask; /* mask last for extensibility */
};
+#define __ARCH_HAS_SA_RESTORER
struct k_sigaction {
struct sigaction sa;
diff --git a/arch/m68k/include/asm/signal.h b/arch/m68k/include/asm/signal.h
index 0b6b0e5..ee80858 100644
--- a/arch/m68k/include/asm/signal.h
+++ b/arch/m68k/include/asm/signal.h
@@ -119,6 +119,7 @@ struct sigaction {
__sigrestore_t sa_restorer;
sigset_t sa_mask; /* mask last for extensibility */
};
+#define __ARCH_HAS_SA_RESTORER
struct k_sigaction {
struct sigaction sa;
diff --git a/arch/mn10300/include/asm/signal.h b/arch/mn10300/include/asm/signal.h
index 1865d72..eecaa76 100644
--- a/arch/mn10300/include/asm/signal.h
+++ b/arch/mn10300/include/asm/signal.h
@@ -131,6 +131,7 @@ struct sigaction {
__sigrestore_t sa_restorer;
sigset_t sa_mask; /* mask last for extensibility */
};
+#define __ARCH_HAS_SA_RESTORER
struct k_sigaction {
struct sigaction sa;
diff --git a/arch/powerpc/include/asm/signal.h b/arch/powerpc/include/asm/signal.h
index 3eb13be..ec63a0a 100644
--- a/arch/powerpc/include/asm/signal.h
+++ b/arch/powerpc/include/asm/signal.h
@@ -109,6 +109,7 @@ struct sigaction {
__sigrestore_t sa_restorer;
sigset_t sa_mask; /* mask last for extensibility */
};
+#define __ARCH_HAS_SA_RESTORER
struct k_sigaction {
struct sigaction sa;
diff --git a/arch/s390/include/asm/signal.h b/arch/s390/include/asm/signal.h
index cdf5cb2..c872626 100644
--- a/arch/s390/include/asm/signal.h
+++ b/arch/s390/include/asm/signal.h
@@ -131,6 +131,7 @@ struct sigaction {
void (*sa_restorer)(void);
sigset_t sa_mask; /* mask last for extensibility */
};
+#define __ARCH_HAS_SA_RESTORER
struct k_sigaction {
struct sigaction sa;
diff --git a/arch/sparc/include/asm/signal.h b/arch/sparc/include/asm/signal.h
index e49b828..4929431 100644
--- a/arch/sparc/include/asm/signal.h
+++ b/arch/sparc/include/asm/signal.h
@@ -191,6 +191,7 @@ struct __old_sigaction {
unsigned long sa_flags;
void (*sa_restorer)(void); /* not used by Linux/SPARC yet */
};
+#define __ARCH_HAS_SA_RESTORER
typedef struct sigaltstack {
void __user *ss_sp;
diff --git a/arch/x86/include/asm/signal.h b/arch/x86/include/asm/signal.h
index 598457c..6cbc795 100644
--- a/arch/x86/include/asm/signal.h
+++ b/arch/x86/include/asm/signal.h
@@ -125,6 +125,8 @@ typedef unsigned long sigset_t;
extern void do_notify_resume(struct pt_regs *, void *, __u32);
# endif /* __KERNEL__ */
+#define __ARCH_HAS_SA_RESTORER
+
#ifdef __i386__
# ifdef __KERNEL__
struct old_sigaction {
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index bfd75ff..d9302b7 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -53,6 +53,8 @@ static struct protection_domain *pt_domain;
static struct iommu_ops amd_iommu_ops;
+static struct dma_map_ops amd_iommu_dma_ops;
+
/*
* general struct to manage commands send to an IOMMU
*/
@@ -1778,18 +1780,20 @@ static int device_change_notifier(struct notifier_block *nb,
domain = domain_for_device(dev);
- /* allocate a protection domain if a device is added */
dma_domain = find_protection_domain(devid);
- if (dma_domain)
- goto out;
- dma_domain = dma_ops_domain_alloc();
- if (!dma_domain)
- goto out;
- dma_domain->target_dev = devid;
+ if (!dma_domain) {
+ /* allocate a protection domain if a device is added */
+ dma_domain = dma_ops_domain_alloc();
+ if (!dma_domain)
+ goto out;
+ dma_domain->target_dev = devid;
+
+ spin_lock_irqsave(&iommu_pd_list_lock, flags);
+ list_add_tail(&dma_domain->list, &iommu_pd_list);
+ spin_unlock_irqrestore(&iommu_pd_list_lock, flags);
+ }
- spin_lock_irqsave(&iommu_pd_list_lock, flags);
- list_add_tail(&dma_domain->list, &iommu_pd_list);
- spin_unlock_irqrestore(&iommu_pd_list_lock, flags);
+ dev->archdata.dma_ops = &amd_iommu_dma_ops;
break;
case BUS_NOTIFY_DEL_DEVICE:
diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c
index efad723..43e04d1 100644
--- a/arch/x86/kvm/i8254.c
+++ b/arch/x86/kvm/i8254.c
@@ -338,11 +338,15 @@ static enum hrtimer_restart pit_timer_fn(struct hrtimer *data)
return HRTIMER_NORESTART;
}
-static void create_pit_timer(struct kvm_kpit_state *ps, u32 val, int is_period)
+static void create_pit_timer(struct kvm *kvm, u32 val, int is_period)
{
+ struct kvm_kpit_state *ps = &kvm->arch.vpit->pit_state;
struct kvm_timer *pt = &ps->pit_timer;
s64 interval;
+ if (!irqchip_in_kernel(kvm))
+ return;
+
interval = muldiv64(val, NSEC_PER_SEC, KVM_PIT_FREQ);
pr_debug("create pit timer, interval is %llu nsec\n", interval);
@@ -394,13 +398,13 @@ static void pit_load_count(struct kvm *kvm, int channel, u32 val)
/* FIXME: enhance mode 4 precision */
case 4:
if (!(ps->flags & KVM_PIT_FLAGS_HPET_LEGACY)) {
- create_pit_timer(ps, val, 0);
+ create_pit_timer(kvm, val, 0);
}
break;
case 2:
case 3:
if (!(ps->flags & KVM_PIT_FLAGS_HPET_LEGACY)){
- create_pit_timer(ps, val, 1);
+ create_pit_timer(kvm, val, 1);
}
break;
default:
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index fbb0936..e329dc5 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -575,6 +575,9 @@ static bool guest_cpuid_has_xsave(struct kvm_vcpu *vcpu)
{
struct kvm_cpuid_entry2 *best;
+ if (!cpu_has_xsave)
+ return 0;
+
best = kvm_find_cpuid_entry(vcpu, 1, 0);
return best && (best->ecx & bit(X86_FEATURE_XSAVE));
}
@@ -3410,6 +3413,9 @@ long kvm_arch_vm_ioctl(struct file *filp,
r = -EEXIST;
if (kvm->arch.vpic)
goto create_irqchip_unlock;
+ r = -EINVAL;
+ if (atomic_read(&kvm->online_vcpus))
+ goto create_irqchip_unlock;
r = -ENOMEM;
vpic = kvm_create_pic(kvm);
if (vpic) {
@@ -5851,6 +5857,9 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
int pending_vec, max_bits, idx;
struct desc_ptr dt;
+ if (!guest_cpuid_has_xsave(vcpu) && (sregs->cr4 & X86_CR4_OSXSAVE))
+ return -EINVAL;
+
dt.size = sregs->idt.limit;
dt.address = sregs->idt.base;
kvm_x86_ops->set_idt(vcpu, &dt);
@@ -6116,12 +6125,7 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
if (r == 0)
r = kvm_mmu_setup(vcpu);
vcpu_put(vcpu);
- if (r < 0)
- goto free_vcpu;
- return 0;
-free_vcpu:
- kvm_x86_ops->vcpu_free(vcpu);
return r;
}
@@ -6194,6 +6198,11 @@ void kvm_arch_check_processor_compat(void *rtn)
kvm_x86_ops->check_processor_compatibility(rtn);
}
+bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu)
+{
+ return irqchip_in_kernel(vcpu->kvm) == (vcpu->arch.apic != NULL);
+}
+
int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
{
struct page *page;
diff --git a/arch/xtensa/include/asm/signal.h b/arch/xtensa/include/asm/signal.h
index 633ba73..75edf8a 100644
--- a/arch/xtensa/include/asm/signal.h
+++ b/arch/xtensa/include/asm/signal.h
@@ -133,6 +133,7 @@ struct sigaction {
void (*sa_restorer)(void);
sigset_t sa_mask; /* mask last for extensibility */
};
+#define __ARCH_HAS_SA_RESTORER
struct k_sigaction {
struct sigaction sa;
diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index 887f68f..db30542 100644
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -30,8 +30,9 @@ new_skb(ulong len)
{
struct sk_buff *skb;
- skb = alloc_skb(len, GFP_ATOMIC);
+ skb = alloc_skb(len + MAX_HEADER, GFP_ATOMIC);
if (skb) {
+ skb_reserve(skb, MAX_HEADER);
skb_reset_mac_header(skb);
skb_reset_network_header(skb);
skb->protocol = __constant_htons(ETH_P_AOE);
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 258cd0a..38f8da9 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -928,6 +928,11 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode,
wake_up_process(lo->lo_thread);
if (max_part > 0)
ioctl_by_bdev(bdev, BLKRRPART, 0);
+
+ /* Grab the block_device to prevent its destruction after we
+ * put /dev/loopXX inode. Later in loop_clr_fd() we bdput(bdev).
+ */
+ bdgrab(bdev);
return 0;
out_clr:
@@ -1024,8 +1029,10 @@ static int loop_clr_fd(struct loop_device *lo, struct block_device *bdev)
memset(lo->lo_encrypt_key, 0, LO_KEY_SIZE);
memset(lo->lo_crypt_name, 0, LO_NAME_SIZE);
memset(lo->lo_file_name, 0, LO_NAME_SIZE);
- if (bdev)
+ if (bdev) {
+ bdput(bdev);
invalidate_bdev(bdev);
+ }
set_capacity(lo->lo_disk, 0);
loop_sysfs_exit(lo);
if (bdev) {
diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index 54139d0..92bdc40 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -650,13 +650,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif,
bio->bi_end_io = end_block_io_op;
}
- /*
- * We set it one so that the last submit_bio does not have to call
- * atomic_inc.
- */
atomic_set(&pending_req->pendcnt, nbio);
-
- /* Get a reference count for the disk queue and start sending I/O */
blk_start_plug(&plug);
for (i = 0; i < nbio; i++)
@@ -684,6 +678,7 @@ static int dispatch_rw_block_io(struct xen_blkif *blkif,
fail_put_bio:
for (i = 0; i < nbio; i++)
bio_put(biolist[i]);
+ atomic_set(&pending_req->pendcnt, 1);
__end_block_io_op(pending_req, -EINVAL);
msleep(1); /* back off a bit */
return -EIO;
diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c
index 85e1ad6..e866ed9 100644
--- a/drivers/bluetooth/ath3k.c
+++ b/drivers/bluetooth/ath3k.c
@@ -71,8 +71,10 @@ static struct usb_device_id ath3k_table[] = {
{ USB_DEVICE(0x03F0, 0x311D) },
/* Atheros AR3012 with sflash firmware*/
+ { USB_DEVICE(0x0CF3, 0x0036) },
{ USB_DEVICE(0x0CF3, 0x3004) },
{ USB_DEVICE(0x0CF3, 0x311D) },
+ { USB_DEVICE(0x0CF3, 0x817a) },
{ USB_DEVICE(0x13d3, 0x3375) },
{ USB_DEVICE(0x04CA, 0x3005) },
@@ -93,8 +95,10 @@ MODULE_DEVICE_TABLE(usb, ath3k_table);
static struct usb_device_id ath3k_blist_tbl[] = {
/* Atheros AR3012 with sflash firmware*/
+ { USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 4b764f8..a77e0d1 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -136,8 +136,10 @@ static struct usb_device_id blacklist_table[] = {
{ USB_DEVICE(0x03f0, 0x311d), .driver_info = BTUSB_IGNORE },
/* Atheros 3012 with sflash firmware */
+ { USB_DEVICE(0x0cf3, 0x0036), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x0cf3, 0x311d), .driver_info = BTUSB_ATH3012 },
+ { USB_DEVICE(0x0cf3, 0x817a), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 },
{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 },
diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c
index 6871ed3..c5cce9c 100644
--- a/drivers/firmware/efivars.c
+++ b/drivers/firmware/efivars.c
@@ -119,6 +119,8 @@ struct efivar_attribute {
ssize_t (*store)(struct efivar_entry *entry, const char *buf, size_t count);
};
+static struct efivars __efivars;
+static struct efivar_operations ops;
#define EFIVAR_ATTR(_name, _mode, _show, _store) \
struct efivar_attribute efivar_attr_##_name = { \
@@ -730,6 +732,53 @@ static ssize_t efivar_delete(struct file *filp, struct kobject *kobj,
return count;
}
+static bool variable_is_present(efi_char16_t *variable_name, efi_guid_t *vendor)
+{
+ struct efivar_entry *entry, *n;
+ struct efivars *efivars = &__efivars;
+ unsigned long strsize1, strsize2;
+ bool found = false;
+
+ strsize1 = utf16_strsize(variable_name, 1024);
+ list_for_each_entry_safe(entry, n, &efivars->list, list) {
+ strsize2 = utf16_strsize(entry->var.VariableName, 1024);
+ if (strsize1 == strsize2 &&
+ !memcmp(variable_name, &(entry->var.VariableName),
+ strsize2) &&
+ !efi_guidcmp(entry->var.VendorGuid,
+ *vendor)) {
+ found = true;
+ break;
+ }
+ }
+ return found;
+}
+
+/*
+ * Returns the size of variable_name, in bytes, including the
+ * terminating NULL character, or variable_name_size if no NULL
+ * character is found among the first variable_name_size bytes.
+ */
+static unsigned long var_name_strnsize(efi_char16_t *variable_name,
+ unsigned long variable_name_size)
+{
+ unsigned long len;
+ efi_char16_t c;
+
+ /*
+ * The variable name is, by definition, a NULL-terminated
+ * string, so make absolutely sure that variable_name_size is
+ * the value we expect it to be. If not, return the real size.
+ */
+ for (len = 2; len <= variable_name_size; len += sizeof(c)) {
+ c = variable_name[(len / sizeof(c)) - 1];
+ if (!c)
+ break;
+ }
+
+ return min(len, variable_name_size);
+}
+
/*
* Let's not leave out systab information that snuck into
* the efivars driver
@@ -917,6 +966,28 @@ void unregister_efivars(struct efivars *efivars)
}
EXPORT_SYMBOL_GPL(unregister_efivars);
+/*
+ * Print a warning when duplicate EFI variables are encountered and
+ * disable the sysfs workqueue since the firmware is buggy.
+ */
+static void dup_variable_bug(efi_char16_t *s16, efi_guid_t *vendor_guid,
+ unsigned long len16)
+{
+ size_t i, len8 = len16 / sizeof(efi_char16_t);
+ char *s8;
+
+ s8 = kzalloc(len8, GFP_KERNEL);
+ if (!s8)
+ return;
+
+ for (i = 0; i < len8; i++)
+ s8[i] = s16[i];
+
+ printk(KERN_WARNING "efivars: duplicate variable: %s-%pUl\n",
+ s8, vendor_guid);
+ kfree(s8);
+}
+
int register_efivars(struct efivars *efivars,
const struct efivar_operations *ops,
struct kobject *parent_kobj)
@@ -957,6 +1028,24 @@ int register_efivars(struct efivars *efivars,
&vendor_guid);
switch (status) {
case EFI_SUCCESS:
+ variable_name_size = var_name_strnsize(variable_name,
+ variable_name_size);
+
+ /*
+ * Some firmware implementations return the
+ * same variable name on multiple calls to
+ * get_next_variable(). Terminate the loop
+ * immediately as there is no guarantee that
+ * we'll ever see a different variable name,
+ * and may end up looping here forever.
+ */
+ if (variable_is_present(variable_name, &vendor_guid)) {
+ dup_variable_bug(variable_name, &vendor_guid,
+ variable_name_size);
+ status = EFI_NOT_FOUND;
+ break;
+ }
+
efivar_create_sysfs_entry(efivars,
variable_name_size,
variable_name,
@@ -983,9 +1072,6 @@ out:
}
EXPORT_SYMBOL_GPL(register_efivars);
-static struct efivars __efivars;
-static struct efivar_operations ops;
-
/*
* For now we register the efi subsystem with the firmware subsystem
* and the vars subsystem with the efi subsystem. In the future, it
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 11ecb0c..2e0c24d 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -6507,8 +6507,8 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_framebuffer *intel_fb;
- struct drm_i915_gem_object *obj;
+ struct drm_framebuffer *old_fb = crtc->fb;
+ struct drm_i915_gem_object *obj = to_intel_framebuffer(fb)->obj;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct intel_unpin_work *work;
unsigned long flags;
@@ -6520,15 +6520,19 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
work->event = event;
work->dev = crtc->dev;
- intel_fb = to_intel_framebuffer(crtc->fb);
- work->old_fb_obj = intel_fb->obj;
+ work->old_fb_obj = to_intel_framebuffer(old_fb)->obj;
INIT_WORK(&work->work, intel_unpin_work_fn);
+ ret = drm_vblank_get(dev, intel_crtc->pipe);
+ if (ret)
+ goto free_work;
+
/* We borrow the event spin lock for protecting unpin_work */
spin_lock_irqsave(&dev->event_lock, flags);
if (intel_crtc->unpin_work) {
spin_unlock_irqrestore(&dev->event_lock, flags);
kfree(work);
+ drm_vblank_put(dev, intel_crtc->pipe);
DRM_DEBUG_DRIVER("flip queue: crtc already busy\n");
return -EBUSY;
@@ -6536,9 +6540,6 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
intel_crtc->unpin_work = work;
spin_unlock_irqrestore(&dev->event_lock, flags);
- intel_fb = to_intel_framebuffer(fb);
- obj = intel_fb->obj;
-
mutex_lock(&dev->struct_mutex);
/* Reference the objects for the scheduled work. */
@@ -6547,10 +6548,6 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
crtc->fb = fb;
- ret = drm_vblank_get(dev, intel_crtc->pipe);
- if (ret)
- goto cleanup_objs;
-
work->pending_flip_obj = obj;
work->enable_stall_check = true;
@@ -6572,7 +6569,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
cleanup_pending:
atomic_sub(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip);
-cleanup_objs:
+ crtc->fb = old_fb;
drm_gem_object_unreference(&work->old_fb_obj->base);
drm_gem_object_unreference(&obj->base);
mutex_unlock(&dev->struct_mutex);
@@ -6581,6 +6578,8 @@ cleanup_objs:
intel_crtc->unpin_work = NULL;
spin_unlock_irqrestore(&dev->event_lock, flags);
+ drm_vblank_put(dev, intel_crtc->pipe);
+free_work:
kfree(work);
return ret;
diff --git a/drivers/net/atl1e/atl1e.h b/drivers/net/atl1e/atl1e.h
index 490d3b3..4093097 100644
--- a/drivers/net/atl1e/atl1e.h
+++ b/drivers/net/atl1e/atl1e.h
@@ -439,7 +439,6 @@ struct atl1e_adapter {
struct atl1e_hw hw;
struct atl1e_hw_stats hw_stats;
- bool have_msi;
u32 wol;
u16 link_speed;
u16 link_duplex;
diff --git a/drivers/net/atl1e/atl1e_main.c b/drivers/net/atl1e/atl1e_main.c
index 86a9122..b0132bb 100644
--- a/drivers/net/atl1e/atl1e_main.c
+++ b/drivers/net/atl1e/atl1e_main.c
@@ -1848,37 +1848,19 @@ static void atl1e_free_irq(struct atl1e_adapter *adapter)
struct net_device *netdev = adapter->netdev;
free_irq(adapter->pdev->irq, netdev);
-
- if (adapter->have_msi)
- pci_disable_msi(adapter->pdev);
}
static int atl1e_request_irq(struct atl1e_adapter *adapter)
{
struct pci_dev *pdev = adapter->pdev;
struct net_device *netdev = adapter->netdev;
- int flags = 0;
int err = 0;
- adapter->have_msi = true;
- err = pci_enable_msi(adapter->pdev);
- if (err) {
- netdev_dbg(adapter->netdev,
- "Unable to allocate MSI interrupt Error: %d\n", err);
- adapter->have_msi = false;
- } else
- netdev->irq = pdev->irq;
-
-
- if (!adapter->have_msi)
- flags |= IRQF_SHARED;
- err = request_irq(adapter->pdev->irq, atl1e_intr, flags,
- netdev->name, netdev);
+ err = request_irq(pdev->irq, atl1e_intr, IRQF_SHARED,
+ netdev->name, netdev);
if (err) {
netdev_dbg(adapter->netdev,
"Unable to allocate interrupt Error: %d\n", err);
- if (adapter->have_msi)
- pci_disable_msi(adapter->pdev);
return err;
}
netdev_dbg(adapter->netdev, "atl1e_request_irq OK\n");
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 6f8b268..dd433a7 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2017,12 +2017,11 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev)
return -EINVAL;
}
+ write_unlock_bh(&bond->lock);
/* unregister rx_handler early so bond_handle_frame wouldn't be called
* for this slave anymore.
*/
netdev_rx_handler_unregister(slave_dev);
- write_unlock_bh(&bond->lock);
- synchronize_net();
write_lock_bh(&bond->lock);
if (!bond->params.fail_over_mac) {
diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
index e5efe3a..e5d0eed 100644
--- a/drivers/net/davinci_emac.c
+++ b/drivers/net/davinci_emac.c
@@ -1049,7 +1049,7 @@ static void emac_tx_handler(void *token, int len, int status)
struct net_device *ndev = skb->dev;
if (unlikely(netif_queue_stopped(ndev)))
- netif_start_queue(ndev);
+ netif_wake_queue(ndev);
ndev->stats.tx_packets++;
ndev->stats.tx_bytes += len;
dev_kfree_skb_any(skb);
diff --git a/drivers/net/ks8851.c b/drivers/net/ks8851.c
index bcd9ba6..99593f0 100644
--- a/drivers/net/ks8851.c
+++ b/drivers/net/ks8851.c
@@ -489,7 +489,7 @@ static void ks8851_rx_pkts(struct ks8851_net *ks)
for (; rxfc != 0; rxfc--) {
rxh = ks8851_rdreg32(ks, KS_RXFHSR);
rxstat = rxh & 0xffff;
- rxlen = rxh >> 16;
+ rxlen = (rxh >> 16) & 0xfff;
netif_dbg(ks, rx_status, ks->netdev,
"rx: stat 0x%04x, len 0x%04x\n", rxstat, rxlen);
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 6696e56..023b57e 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -552,6 +552,10 @@ static ssize_t macvtap_get_user(struct macvtap_queue *q,
if (unlikely(len < ETH_HLEN))
goto err;
+ err = -EMSGSIZE;
+ if (unlikely(count > UIO_MAXIOV))
+ goto err;
+
skb = macvtap_alloc_skb(&q->sk, NET_IP_ALIGN, len, vnet_hdr.hdr_len,
noblock, &err);
if (!skb)
diff --git a/drivers/net/pch_gbe/pch_gbe_main.c b/drivers/net/pch_gbe/pch_gbe_main.c
index 236d00e..0055daf 100644
--- a/drivers/net/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/pch_gbe/pch_gbe_main.c
@@ -1509,9 +1509,9 @@ pch_gbe_clean_rx(struct pch_gbe_adapter *adapter,
skb_put(skb, length);
skb->protocol = eth_type_trans(skb, netdev);
if (tcp_ip_status & PCH_GBE_RXD_ACC_STAT_TCPIPOK)
- skb->ip_summed = CHECKSUM_NONE;
- else
skb->ip_summed = CHECKSUM_UNNECESSARY;
+ else
+ skb->ip_summed = CHECKSUM_NONE;
napi_gro_receive(&adapter->napi, skb);
(*work_done)++;
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 5f93956..7f7aae2 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -992,7 +992,7 @@ static void sky2_ramset(struct sky2_hw *hw, u16 q, u32 start, u32 space)
sky2_write32(hw, RB_ADDR(q, RB_RX_UTHP), tp);
sky2_write32(hw, RB_ADDR(q, RB_RX_LTHP), space/2);
- tp = space - 2048/8;
+ tp = space - 8192/8;
sky2_write32(hw, RB_ADDR(q, RB_RX_UTPP), tp);
sky2_write32(hw, RB_ADDR(q, RB_RX_LTPP), space/4);
} else {
diff --git a/drivers/net/sky2.h b/drivers/net/sky2.h
index a79a166..8cc863e 100644
--- a/drivers/net/sky2.h
+++ b/drivers/net/sky2.h
@@ -2064,7 +2064,7 @@ enum {
GM_IS_RX_FF_OR = 1<<1, /* Receive FIFO Overrun */
GM_IS_RX_COMPL = 1<<0, /* Frame Reception Complete */
-#define GMAC_DEF_MSK GM_IS_TX_FF_UR
+#define GMAC_DEF_MSK (GM_IS_TX_FF_UR | GM_IS_RX_FF_OR)
};
/* GMAC_LINK_CTRL 16 bit GMAC Link Control Reg (YUKON only) */
diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c
index de0de3e..2f4775f 100644
--- a/drivers/net/usb/smsc75xx.c
+++ b/drivers/net/usb/smsc75xx.c
@@ -719,8 +719,12 @@ static int smsc75xx_set_rx_max_frame_length(struct usbnet *dev, int size)
static int smsc75xx_change_mtu(struct net_device *netdev, int new_mtu)
{
struct usbnet *dev = netdev_priv(netdev);
+ int ret;
+
+ if (new_mtu > MAX_SINGLE_PACKET_SIZE)
+ return -EINVAL;
- int ret = smsc75xx_set_rx_max_frame_length(dev, new_mtu);
+ ret = smsc75xx_set_rx_max_frame_length(dev, new_mtu + ETH_HLEN);
check_warn_return(ret, "Failed to set mac rx frame length");
return usbnet_change_mtu(netdev, new_mtu);
@@ -964,7 +968,7 @@ static int smsc75xx_reset(struct usbnet *dev)
netif_dbg(dev, ifup, dev->net, "FCT_TX_CTL set to 0x%08x", buf);
- ret = smsc75xx_set_rx_max_frame_length(dev, 1514);
+ ret = smsc75xx_set_rx_max_frame_length(dev, dev->net->mtu + ETH_HLEN);
check_warn_return(ret, "Failed to set max rx frame length");
ret = smsc75xx_read_reg(dev, MAC_RX, &buf);
@@ -1108,8 +1112,8 @@ static int smsc75xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
else if (rx_cmd_a & (RX_CMD_A_LONG | RX_CMD_A_RUNT))
dev->net->stats.rx_frame_errors++;
} else {
- /* ETH_FRAME_LEN + 4(CRC) + 2(COE) + 4(Vlan) */
- if (unlikely(size > (ETH_FRAME_LEN + 12))) {
+ /* MAX_SINGLE_PACKET_SIZE + 4(CRC) + 2(COE) + 4(Vlan) */
+ if (unlikely(size > (MAX_SINGLE_PACKET_SIZE + ETH_HLEN + 12))) {
netif_dbg(dev, rx_err, dev->net,
"size err rx_cmd_a=0x%08x", rx_cmd_a);
return 0;
diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c
index 47d44bc..5deeb14 100644
--- a/drivers/net/wireless/b43/dma.c
+++ b/drivers/net/wireless/b43/dma.c
@@ -1390,8 +1390,12 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev,
struct b43_dmaring *ring;
struct b43_dmadesc_generic *desc;
struct b43_dmadesc_meta *meta;
+ static const struct b43_txstatus fake; /* filled with 0 */
+ const struct b43_txstatus *txstat;
int slot, firstused;
bool frame_succeed;
+ int skip;
+ static u8 err_out1, err_out2;
ring = parse_cookie(dev, status->cookie, &slot);
if (unlikely(!ring))
@@ -1404,13 +1408,36 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev,
firstused = ring->current_slot - ring->used_slots + 1;
if (firstused < 0)
firstused = ring->nr_slots + firstused;
+
+ skip = 0;
if (unlikely(slot != firstused)) {
/* This possibly is a firmware bug and will result in
- * malfunction, memory leaks and/or stall of DMA functionality. */
- b43dbg(dev->wl, "Out of order TX status report on DMA ring %d. "
- "Expected %d, but got %d\n",
- ring->index, firstused, slot);
- return;
+ * malfunction, memory leaks and/or stall of DMA functionality.
+ */
+ if (slot == next_slot(ring, next_slot(ring, firstused))) {
+ /* If a single header/data pair was missed, skip over
+ * the first two slots in an attempt to recover.
+ */
+ slot = firstused;
+ skip = 2;
+ if (!err_out1) {
+ /* Report the error once. */
+ b43dbg(dev->wl,
+ "Skip on DMA ring %d slot %d.\n",
+ ring->index, slot);
+ err_out1 = 1;
+ }
+ } else {
+ /* More than a single header/data pair were missed.
+ * Report this error once.
+ */
+ if (!err_out2)
+ b43dbg(dev->wl,
+ "Out of order TX status report on DMA ring %d. Expected %d, but got %d\n",
+ ring->index, firstused, slot);
+ err_out2 = 1;
+ return;
+ }
}
ops = ring->ops;
@@ -1424,11 +1451,13 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev,
slot, firstused, ring->index);
break;
}
+
if (meta->skb) {
struct b43_private_tx_info *priv_info =
- b43_get_priv_tx_info(IEEE80211_SKB_CB(meta->skb));
+ b43_get_priv_tx_info(IEEE80211_SKB_CB(meta->skb));
- unmap_descbuffer(ring, meta->dmaaddr, meta->skb->len, 1);
+ unmap_descbuffer(ring, meta->dmaaddr,
+ meta->skb->len, 1);
kfree(priv_info->bouncebuffer);
priv_info->bouncebuffer = NULL;
} else {
@@ -1440,8 +1469,9 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev,
struct ieee80211_tx_info *info;
if (unlikely(!meta->skb)) {
- /* This is a scatter-gather fragment of a frame, so
- * the skb pointer must not be NULL. */
+ /* This is a scatter-gather fragment of a frame,
+ * so the skb pointer must not be NULL.
+ */
b43dbg(dev->wl, "TX status unexpected NULL skb "
"at slot %d (first=%d) on ring %d\n",
slot, firstused, ring->index);
@@ -1452,9 +1482,18 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev,
/*
* Call back to inform the ieee80211 subsystem about
- * the status of the transmission.
+ * the status of the transmission. When skipping over
+ * a missed TX status report, use a status structure
+ * filled with zeros to indicate that the frame was not
+ * sent (frame_count 0) and not acknowledged
*/
- frame_succeed = b43_fill_txstatus_report(dev, info, status);
+ if (unlikely(skip))
+ txstat = &fake;
+ else
+ txstat = status;
+
+ frame_succeed = b43_fill_txstatus_report(dev, info,
+ txstat);
#ifdef CONFIG_B43_DEBUG
if (frame_succeed)
ring->nr_succeed_tx_packets++;
@@ -1482,12 +1521,14 @@ void b43_dma_handle_txstatus(struct b43_wldev *dev,
/* Everything unmapped and free'd. So it's not used anymore. */
ring->used_slots--;
- if (meta->is_last_fragment) {
+ if (meta->is_last_fragment && !skip) {
/* This is the last scatter-gather
* fragment of the frame. We are done. */
break;
}
slot = next_slot(ring, slot);
+ if (skip > 0)
+ --skip;
}
if (ring->stopped) {
B43_WARN_ON(free_slots(ring) < TX_SLOTS_PER_FRAME);
diff --git a/drivers/net/wireless/mwifiex/init.c b/drivers/net/wireless/mwifiex/init.c
index 3f1559e..45dfc2b 100644
--- a/drivers/net/wireless/mwifiex/init.c
+++ b/drivers/net/wireless/mwifiex/init.c
@@ -561,6 +561,14 @@ mwifiex_shutdown_drv(struct mwifiex_adapter *adapter)
return ret;
}
+ /* cancel current command */
+ if (adapter->curr_cmd) {
+ dev_warn(adapter->dev, "curr_cmd is still in processing\n");
+ del_timer(&adapter->cmd_timer);
+ mwifiex_insert_cmd_to_free_q(adapter, adapter->curr_cmd);
+ adapter->curr_cmd = NULL;
+ }
+
/* shut down mwifiex */
dev_dbg(adapter->dev, "info: shutdown mwifiex...\n");
diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index c72128f..42cad5c 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -1882,7 +1882,7 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
case TRIG_NONE:
/* continous acquisition */
devpriv->ai_continous = 1;
- devpriv->ai_sample_count = 0;
+ devpriv->ai_sample_count = 1;
break;
}
diff --git a/drivers/tty/vt/vc_screen.c b/drivers/tty/vt/vc_screen.c
index 66825c9..ab23201 100644
--- a/drivers/tty/vt/vc_screen.c
+++ b/drivers/tty/vt/vc_screen.c
@@ -92,7 +92,7 @@ vcs_poll_data_free(struct vcs_poll_data *poll)
static struct vcs_poll_data *
vcs_poll_data_get(struct file *file)
{
- struct vcs_poll_data *poll = file->private_data;
+ struct vcs_poll_data *poll = file->private_data, *kill = NULL;
if (poll)
return poll;
@@ -121,10 +121,12 @@ vcs_poll_data_get(struct file *file)
file->private_data = poll;
} else {
/* someone else raced ahead of us */
- vcs_poll_data_free(poll);
+ kill = poll;
poll = file->private_data;
}
spin_unlock(&file->f_lock);
+ if (kill)
+ vcs_poll_data_free(kill);
return poll;
}
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index cb436fe1..151ca5e 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1960,8 +1960,8 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td,
if (event_trb != ep_ring->dequeue &&
event_trb != td->last_trb)
td->urb->actual_length =
- td->urb->transfer_buffer_length
- - TRB_LEN(le32_to_cpu(event->transfer_len));
+ td->urb->transfer_buffer_length -
+ EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
else
td->urb->actual_length = 0;
@@ -1993,7 +1993,7 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td,
/* Maybe the event was for the data stage? */
td->urb->actual_length =
td->urb->transfer_buffer_length -
- TRB_LEN(le32_to_cpu(event->transfer_len));
+ EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
xhci_dbg(xhci, "Waiting for status "
"stage event\n");
return 0;
@@ -2029,7 +2029,7 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td,
/* handle completion code */
switch (trb_comp_code) {
case COMP_SUCCESS:
- if (TRB_LEN(le32_to_cpu(event->transfer_len)) == 0) {
+ if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) == 0) {
frame->status = 0;
break;
}
@@ -2076,7 +2076,7 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td,
len += TRB_LEN(le32_to_cpu(cur_trb->generic.field[2]));
}
len += TRB_LEN(le32_to_cpu(cur_trb->generic.field[2])) -
- TRB_LEN(le32_to_cpu(event->transfer_len));
+ EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
if (trb_comp_code != COMP_STOP_INVAL) {
frame->actual_length = len;
@@ -2134,7 +2134,7 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td,
case COMP_SUCCESS:
/* Double check that the HW transferred everything. */
if (event_trb != td->last_trb ||
- TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) {
+ EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) {
xhci_warn(xhci, "WARN Successful completion "
"on short TX\n");
if (td->urb->transfer_flags & URB_SHORT_NOT_OK)
@@ -2162,18 +2162,18 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td,
"%d bytes untransferred\n",
td->urb->ep->desc.bEndpointAddress,
td->urb->transfer_buffer_length,
- TRB_LEN(le32_to_cpu(event->transfer_len)));
+ EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)));
/* Fast path - was this the last TRB in the TD for this URB? */
if (event_trb == td->last_trb) {
- if (TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) {
+ if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) {
td->urb->actual_length =
td->urb->transfer_buffer_length -
- TRB_LEN(le32_to_cpu(event->transfer_len));
+ EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
if (td->urb->transfer_buffer_length <
td->urb->actual_length) {
xhci_warn(xhci, "HC gave bad length "
"of %d bytes left\n",
- TRB_LEN(le32_to_cpu(event->transfer_len)));
+ EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)));
td->urb->actual_length = 0;
if (td->urb->transfer_flags & URB_SHORT_NOT_OK)
*status = -EREMOTEIO;
@@ -2217,7 +2217,7 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td,
if (trb_comp_code != COMP_STOP_INVAL)
td->urb->actual_length +=
TRB_LEN(le32_to_cpu(cur_trb->generic.field[2])) -
- TRB_LEN(le32_to_cpu(event->transfer_len));
+ EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
}
return finish_td(xhci, td, event_trb, event, ep, status, false);
@@ -2283,7 +2283,7 @@ static int handle_tx_event(struct xhci_hcd *xhci,
* transfer type
*/
case COMP_SUCCESS:
- if (TRB_LEN(le32_to_cpu(event->transfer_len)) == 0)
+ if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) == 0)
break;
if (xhci->quirks & XHCI_TRUST_TX_LENGTH)
trb_comp_code = COMP_SHORT_TX;
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 8b94412..94724b0 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -831,6 +831,10 @@ struct xhci_transfer_event {
__le32 flags;
};
+/* Transfer event TRB length bit mask */
+/* bits 0:23 */
+#define EVENT_TRB_LEN(p) ((p) & 0xffffff)
+
/** Transfer Event bit fields **/
#define TRB_TO_EP_ID(p) (((p) >> 16) & 0x1f)
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 149198f..132f114 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -646,6 +646,7 @@ static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(FTDI_VID, FTDI_RM_CANVIEW_PID) },
{ USB_DEVICE(ACTON_VID, ACTON_SPECTRAPRO_PID) },
{ USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) },
+ { USB_DEVICE(MITSUBISHI_VID, MITSUBISHI_FXUSB_PID) },
{ USB_DEVICE(BANDB_VID, BANDB_USOTL4_PID) },
{ USB_DEVICE(BANDB_VID, BANDB_USTL4_PID) },
{ USB_DEVICE(BANDB_VID, BANDB_USO9ML2_PID) },
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 97e0a6b..809c03a 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -584,6 +584,13 @@
#define CONTEC_COM1USBH_PID 0x8311 /* COM-1(USB)H */
/*
+ * Mitsubishi Electric Corp. (http://www.meau.com)
+ * Submitted by Konstantin Holoborodko
+ */
+#define MITSUBISHI_VID 0x06D3
+#define MITSUBISHI_FXUSB_PID 0x0284 /* USB/RS422 converters: FX-USB-AW/-BD */
+
+/*
* Definitions for B&B Electronics products.
*/
#define BANDB_VID 0x0856 /* B&B Electronics Vendor ID */
diff --git a/fs/block_dev.c b/fs/block_dev.c
index 77e8e5b..97e4cb5 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -576,6 +576,7 @@ struct block_device *bdgrab(struct block_device *bdev)
ihold(bdev->bd_inode);
return bdev;
}
+EXPORT_SYMBOL(bdgrab);
long nr_blockdev_pages(void)
{
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 7e20a65..01220b7 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3786,7 +3786,7 @@ static void update_global_block_rsv(struct btrfs_fs_info *fs_info)
spin_lock(&block_rsv->lock);
spin_lock(&sinfo->lock);
- block_rsv->size = num_bytes;
+ block_rsv->size = min_t(u64, num_bytes, 512 * 1024 * 1024);
num_bytes = sinfo->bytes_used + sinfo->bytes_pinned +
sinfo->bytes_reserved + sinfo->bytes_readonly +
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index e0113aa..2041de7 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -288,9 +288,9 @@ struct ext4_group_desc
*/
struct flex_groups {
- atomic_t free_inodes;
- atomic_t free_blocks;
- atomic_t used_dirs;
+ atomic64_t free_blocks;
+ atomic_t free_inodes;
+ atomic_t used_dirs;
};
#define EXT4_BG_INODE_UNINIT 0x0001 /* Inode table/bitmap not in use */
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 29272de..dd732c7 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -345,8 +345,8 @@ static int find_group_flex(struct super_block *sb, struct inode *parent,
ext4_group_t ngroups = ext4_get_groups_count(sb);
int flex_size = ext4_flex_bg_size(sbi);
ext4_group_t best_flex = parent_fbg_group;
- int blocks_per_flex = sbi->s_blocks_per_group * flex_size;
- int flexbg_free_blocks;
+ ext4_fsblk_t blocks_per_flex = sbi->s_blocks_per_group * flex_size;
+ ext4_fsblk_t flexbg_free_blocks;
int flex_freeb_ratio;
ext4_group_t n_fbg_groups;
ext4_group_t i;
@@ -355,7 +355,7 @@ static int find_group_flex(struct super_block *sb, struct inode *parent,
sbi->s_log_groups_per_flex;
find_close_to_parent:
- flexbg_free_blocks = atomic_read(&flex_group[best_flex].free_blocks);
+ flexbg_free_blocks = atomic64_read(&flex_group[best_flex].free_blocks);
flex_freeb_ratio = flexbg_free_blocks * 100 / blocks_per_flex;
if (atomic_read(&flex_group[best_flex].free_inodes) &&
flex_freeb_ratio > free_block_ratio)
@@ -370,7 +370,7 @@ find_close_to_parent:
if (i == parent_fbg_group || i == parent_fbg_group - 1)
continue;
- flexbg_free_blocks = atomic_read(&flex_group[i].free_blocks);
+ flexbg_free_blocks = atomic64_read(&flex_group[i].free_blocks);
flex_freeb_ratio = flexbg_free_blocks * 100 / blocks_per_flex;
if (flex_freeb_ratio > free_block_ratio &&
@@ -380,14 +380,14 @@ find_close_to_parent:
}
if ((atomic_read(&flex_group[best_flex].free_inodes) == 0) ||
- ((atomic_read(&flex_group[i].free_blocks) >
- atomic_read(&flex_group[best_flex].free_blocks)) &&
+ ((atomic64_read(&flex_group[i].free_blocks) >
+ atomic64_read(&flex_group[best_flex].free_blocks)) &&
atomic_read(&flex_group[i].free_inodes)))
best_flex = i;
}
if (!atomic_read(&flex_group[best_flex].free_inodes) ||
- !atomic_read(&flex_group[best_flex].free_blocks))
+ !atomic64_read(&flex_group[best_flex].free_blocks))
return -1;
found_flexbg:
@@ -406,8 +406,8 @@ out:
}
struct orlov_stats {
+ __u64 free_blocks;
__u32 free_inodes;
- __u32 free_blocks;
__u32 used_dirs;
};
@@ -424,7 +424,7 @@ static void get_orlov_stats(struct super_block *sb, ext4_group_t g,
if (flex_size > 1) {
stats->free_inodes = atomic_read(&flex_group[g].free_inodes);
- stats->free_blocks = atomic_read(&flex_group[g].free_blocks);
+ stats->free_blocks = atomic64_read(&flex_group[g].free_blocks);
stats->used_dirs = atomic_read(&flex_group[g].used_dirs);
return;
}
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 31bbdb5..35959f6 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2814,8 +2814,8 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
if (sbi->s_log_groups_per_flex) {
ext4_group_t flex_group = ext4_flex_group(sbi,
ac->ac_b_ex.fe_group);
- atomic_sub(ac->ac_b_ex.fe_len,
- &sbi->s_flex_groups[flex_group].free_blocks);
+ atomic64_sub(ac->ac_b_ex.fe_len,
+ &sbi->s_flex_groups[flex_group].free_blocks);
}
err = ext4_handle_dirty_metadata(handle, NULL, bitmap_bh);
@@ -4614,7 +4614,7 @@ do_more:
if (sbi->s_log_groups_per_flex) {
ext4_group_t flex_group = ext4_flex_group(sbi, block_group);
- atomic_add(count, &sbi->s_flex_groups[flex_group].free_blocks);
+ atomic64_add(count, &sbi->s_flex_groups[flex_group].free_blocks);
}
ext4_mb_unload_buddy(&e4b);
@@ -4745,8 +4745,8 @@ void ext4_add_groupblocks(handle_t *handle, struct super_block *sb,
if (sbi->s_log_groups_per_flex) {
ext4_group_t flex_group = ext4_flex_group(sbi, block_group);
- atomic_add(blocks_freed,
- &sbi->s_flex_groups[flex_group].free_blocks);
+ atomic64_add(blocks_freed,
+ &sbi->s_flex_groups[flex_group].free_blocks);
}
ext4_mb_unload_buddy(&e4b);
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 244100f..d2661aac 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -929,8 +929,8 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
sbi->s_log_groups_per_flex) {
ext4_group_t flex_group;
flex_group = ext4_flex_group(sbi, input->group);
- atomic_add(input->free_blocks_count,
- &sbi->s_flex_groups[flex_group].free_blocks);
+ atomic64_add(input->free_blocks_count,
+ &sbi->s_flex_groups[flex_group].free_blocks);
atomic_add(EXT4_INODES_PER_GROUP(sb),
&sbi->s_flex_groups[flex_group].free_inodes);
}
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index c6a3363..e05cd34 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1992,8 +1992,8 @@ static int ext4_fill_flex_info(struct super_block *sb)
flex_group = ext4_flex_group(sbi, i);
atomic_add(ext4_free_inodes_count(sb, gdp),
&sbi->s_flex_groups[flex_group].free_inodes);
- atomic_add(ext4_free_blks_count(sb, gdp),
- &sbi->s_flex_groups[flex_group].free_blocks);
+ atomic64_add(ext4_free_blks_count(sb, gdp),
+ &sbi->s_flex_groups[flex_group].free_blocks);
atomic_add(ext4_used_dirs_count(sb, gdp),
&sbi->s_flex_groups[flex_group].used_dirs);
}
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 3720caa..894e326 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -3440,19 +3440,6 @@ static inline int nfs4_server_supports_acls(struct nfs_server *server)
*/
#define NFS4ACL_MAXPAGES (XATTR_SIZE_MAX >> PAGE_CACHE_SHIFT)
-static void buf_to_pages(const void *buf, size_t buflen,
- struct page **pages, unsigned int *pgbase)
-{
- const void *p = buf;
-
- *pgbase = offset_in_page(buf);
- p -= *pgbase;
- while (p < buf + buflen) {
- *(pages++) = virt_to_page(p);
- p += PAGE_CACHE_SIZE;
- }
-}
-
static int buf_to_pages_noslab(const void *buf, size_t buflen,
struct page **pages, unsigned int *pgbase)
{
@@ -3549,9 +3536,19 @@ out:
nfs4_set_cached_acl(inode, acl);
}
+/*
+ * The getxattr API returns the required buffer length when called with a
+ * NULL buf. The NFSv4 acl tool then calls getxattr again after allocating
+ * the required buf. On a NULL buf, we send a page of data to the server
+ * guessing that the ACL request can be serviced by a page. If so, we cache
+ * up to the page of ACL data, and the 2nd call to getxattr is serviced by
+ * the cache. If not so, we throw away the page, and cache the required
+ * length. The next getxattr call will then produce another round trip to
+ * the server, this time with the input buf of the required size.
+ */
static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t buflen)
{
- struct page *pages[NFS4ACL_MAXPAGES];
+ struct page *pages[NFS4ACL_MAXPAGES] = {NULL, };
struct nfs_getaclargs args = {
.fh = NFS_FH(inode),
.acl_pages = pages,
@@ -3566,41 +3563,61 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
.rpc_argp = &args,
.rpc_resp = &res,
};
- struct page *localpage = NULL;
- int ret;
-
- if (buflen < PAGE_SIZE) {
- /* As long as we're doing a round trip to the server anyway,
- * let's be prepared for a page of acl data. */
- localpage = alloc_page(GFP_KERNEL);
- resp_buf = page_address(localpage);
- if (localpage == NULL)
- return -ENOMEM;
- args.acl_pages[0] = localpage;
- args.acl_pgbase = 0;
- args.acl_len = PAGE_SIZE;
- } else {
- resp_buf = buf;
- buf_to_pages(buf, buflen, args.acl_pages, &args.acl_pgbase);
+ int ret = -ENOMEM, npages, i;
+ size_t acl_len = 0;
+
+ npages = (buflen + PAGE_SIZE - 1) >> PAGE_SHIFT;
+ /* As long as we're doing a round trip to the server anyway,
+ * let's be prepared for a page of acl data. */
+ if (npages == 0)
+ npages = 1;
+
+ for (i = 0; i < npages; i++) {
+ pages[i] = alloc_page(GFP_KERNEL);
+ if (!pages[i])
+ goto out_free;
+ }
+ if (npages > 1) {
+ /* for decoding across pages */
+ res.acl_scratch = alloc_page(GFP_KERNEL);
+ if (!res.acl_scratch)
+ goto out_free;
}
- ret = nfs4_call_sync(NFS_SERVER(inode)->client, NFS_SERVER(inode), &msg, &args.seq_args, &res.seq_res, 0);
+ args.acl_len = npages * PAGE_SIZE;
+ args.acl_pgbase = 0;
+ /* Let decode_getfacl know not to fail if the ACL data is larger than
+ * the page we send as a guess */
+ if (buf == NULL)
+ res.acl_flags |= NFS4_ACL_LEN_REQUEST;
+ resp_buf = page_address(pages[0]);
+
+ dprintk("%s buf %p buflen %ld npages %d args.acl_len %ld\n",
+ __func__, buf, buflen, npages, args.acl_len);
+ ret = nfs4_call_sync(NFS_SERVER(inode)->client, NFS_SERVER(inode),
+ &msg, &args.seq_args, &res.seq_res, 0);
if (ret)
goto out_free;
- if (res.acl_len > args.acl_len)
- nfs4_write_cached_acl(inode, NULL, res.acl_len);
+
+ acl_len = res.acl_len - res.acl_data_offset;
+ if (acl_len > args.acl_len)
+ nfs4_write_cached_acl(inode, NULL, acl_len);
else
- nfs4_write_cached_acl(inode, resp_buf, res.acl_len);
+ nfs4_write_cached_acl(inode, resp_buf + res.acl_data_offset,
+ acl_len);
if (buf) {
ret = -ERANGE;
- if (res.acl_len > buflen)
+ if (acl_len > buflen)
goto out_free;
- if (localpage)
- memcpy(buf, resp_buf, res.acl_len);
+ _copy_from_pages(buf, pages, res.acl_data_offset,
+ res.acl_len);
}
- ret = res.acl_len;
+ ret = acl_len;
out_free:
- if (localpage)
- __free_page(localpage);
+ for (i = 0; i < npages; i++)
+ if (pages[i])
+ __free_page(pages[i]);
+ if (res.acl_scratch)
+ __free_page(res.acl_scratch);
return ret;
}
@@ -3631,6 +3648,8 @@ static ssize_t nfs4_proc_get_acl(struct inode *inode, void *buf, size_t buflen)
nfs_zap_acl_cache(inode);
ret = nfs4_read_cached_acl(inode, buf, buflen);
if (ret != -ENOENT)
+ /* -ENOENT is returned if there is no ACL or if there is an ACL
+ * but no cached acl data, just the acl length */
return ret;
return nfs4_get_acl_uncached(inode, buf, buflen);
}
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 5fcc67b..4204e96 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -2374,11 +2374,12 @@ static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
encode_compound_hdr(xdr, req, &hdr);
encode_sequence(xdr, &args->seq_args, &hdr);
encode_putfh(xdr, args->fh, &hdr);
- replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1;
+ replen = hdr.replen + op_decode_hdr_maxsz + 1;
encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr);
xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
args->acl_pages, args->acl_pgbase, args->acl_len);
+
encode_nops(&hdr);
}
@@ -4714,17 +4715,18 @@ decode_restorefh(struct xdr_stream *xdr)
}
static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
- size_t *acl_len)
+ struct nfs_getaclres *res)
{
- __be32 *savep;
+ __be32 *savep, *bm_p;
uint32_t attrlen,
bitmap[2] = {0};
struct kvec *iov = req->rq_rcv_buf.head;
int status;
- *acl_len = 0;
+ res->acl_len = 0;
if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
goto out;
+ bm_p = xdr->p;
if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
goto out;
if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
@@ -4736,18 +4738,30 @@ static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
size_t hdrlen;
u32 recvd;
+ /* The bitmap (xdr len + bitmaps) and the attr xdr len words
+ * are stored with the acl data to handle the problem of
+ * variable length bitmaps.*/
+ xdr->p = bm_p;
+ res->acl_data_offset = be32_to_cpup(bm_p) + 2;
+ res->acl_data_offset <<= 2;
+
/* We ignore &savep and don't do consistency checks on
* the attr length. Let userspace figure it out.... */
hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base;
+ attrlen += res->acl_data_offset;
recvd = req->rq_rcv_buf.len - hdrlen;
if (attrlen > recvd) {
- dprintk("NFS: server cheating in getattr"
- " acl reply: attrlen %u > recvd %u\n",
+ if (res->acl_flags & NFS4_ACL_LEN_REQUEST) {
+ /* getxattr interface called with a NULL buf */
+ res->acl_len = attrlen;
+ goto out;
+ }
+ dprintk("NFS: acl reply: attrlen %u > recvd %u\n",
attrlen, recvd);
return -EINVAL;
}
xdr_read_pages(xdr, attrlen);
- *acl_len = attrlen;
+ res->acl_len = attrlen;
} else
status = -EOPNOTSUPP;
@@ -5673,6 +5687,10 @@ nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
struct compound_hdr hdr;
int status;
+ if (res->acl_scratch != NULL) {
+ void *p = page_address(res->acl_scratch);
+ xdr_set_scratch_buffer(xdr, p, PAGE_SIZE);
+ }
status = decode_compound_hdr(xdr, &hdr);
if (status)
goto out;
@@ -5682,7 +5700,7 @@ nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
status = decode_putfh(xdr);
if (status)
goto out;
- status = decode_getacl(xdr, rqstp, &res->acl_len);
+ status = decode_getacl(xdr, rqstp, res);
out:
return status;
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index ecdd18a..59ac3f4 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -262,7 +262,7 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
iattr->ia_valid |= ATTR_SIZE;
}
if (bmval[0] & FATTR4_WORD0_ACL) {
- int nace;
+ u32 nace;
struct nfs4_ace *ace;
READ_BUF(4); len += 4;
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 567b3db..7cbc585 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -917,6 +917,8 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir)
ino = parent_sd->s_ino;
if (filldir(dirent, ".", 1, filp->f_pos, ino, DT_DIR) == 0)
filp->f_pos++;
+ else
+ return 0;
}
if (filp->f_pos == 1) {
if (parent_sd->s_parent)
@@ -925,6 +927,8 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir)
ino = parent_sd->s_ino;
if (filldir(dirent, "..", 2, filp->f_pos, ino, DT_DIR) == 0)
filp->f_pos++;
+ else
+ return 0;
}
mutex_lock(&sysfs_mutex);
for (pos = sysfs_dir_pos(ns, parent_sd, filp->f_pos, pos);
@@ -955,10 +959,21 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir)
return 0;
}
+static loff_t sysfs_dir_llseek(struct file *file, loff_t offset, int whence)
+{
+ struct inode *inode = file->f_path.dentry->d_inode;
+ loff_t ret;
+
+ mutex_lock(&inode->i_mutex);
+ ret = generic_file_llseek(file, offset, whence);
+ mutex_unlock(&inode->i_mutex);
+
+ return ret;
+}
const struct file_operations sysfs_dir_operations = {
.read = generic_read_dir,
.readdir = sysfs_readdir,
.release = sysfs_dir_release,
- .llseek = generic_file_llseek,
+ .llseek = sysfs_dir_llseek,
};
diff --git a/include/asm-generic/signal.h b/include/asm-generic/signal.h
index 555c0ae..743f7a5 100644
--- a/include/asm-generic/signal.h
+++ b/include/asm-generic/signal.h
@@ -99,6 +99,10 @@ typedef unsigned long old_sigset_t;
#include <asm-generic/signal-defs.h>
+#ifdef SA_RESTORER
+#define __ARCH_HAS_SA_RESTORER
+#endif
+
struct sigaction {
__sighandler_t sa_handler;
unsigned long sa_flags;
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 82d5476..8663a26 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -736,6 +736,13 @@ static inline bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu)
{
return vcpu->kvm->bsp_vcpu_id == vcpu->vcpu_id;
}
+
+bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu);
+
+#else
+
+static inline bool kvm_vcpu_compatible(struct kvm_vcpu *vcpu) { return true; }
+
#endif
#ifdef __KVM_HAVE_DEVICE_ASSIGNMENT
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 0012fc3..9733df5 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -591,8 +591,13 @@ struct nfs_getaclargs {
struct nfs4_sequence_args seq_args;
};
+/* getxattr ACL interface flags */
+#define NFS4_ACL_LEN_REQUEST 0x0001 /* zero length getxattr buffer */
struct nfs_getaclres {
size_t acl_len;
+ size_t acl_data_offset;
+ int acl_flags;
+ struct page * acl_scratch;
struct nfs4_sequence_res seq_res;
};
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index a20970e..af70af3 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -191,6 +191,8 @@ extern int xdr_decode_array2(struct xdr_buf *buf, unsigned int base,
struct xdr_array2_desc *desc);
extern int xdr_encode_array2(struct xdr_buf *buf, unsigned int base,
struct xdr_array2_desc *desc);
+extern void _copy_from_pages(char *p, struct page **pages, size_t pgbase,
+ size_t len);
/*
* Provide some simple tools for XDR buffer overflow-checking etc.
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index d3ec89f..6b762c6 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -130,7 +130,7 @@ struct thermal_zone_device {
/* Adding event notification support elements */
#define THERMAL_GENL_FAMILY_NAME "thermal_event"
#define THERMAL_GENL_VERSION 0x01
-#define THERMAL_GENL_MCAST_GROUP_NAME "thermal_mc_group"
+#define THERMAL_GENL_MCAST_GROUP_NAME "thermal_mc_grp"
enum events {
THERMAL_AUX0,
diff --git a/kernel/signal.c b/kernel/signal.c
index 0386710..b0c0887 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -437,7 +437,7 @@ flush_signal_handlers(struct task_struct *t, int force_default)
if (force_default || ka->sa.sa_handler != SIG_IGN)
ka->sa.sa_handler = SIG_DFL;
ka->sa.sa_flags = 0;
-#ifdef SA_RESTORER
+#ifdef __ARCH_HAS_SA_RESTORER
ka->sa.sa_restorer = NULL;
#endif
sigemptyset(&ka->sa.sa_mask);
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 97bf540..b3ae845 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -2527,11 +2527,25 @@ static int set_tracer_option(struct tracer *trace, char *cmp, int neg)
return -EINVAL;
}
-static void set_tracer_flags(unsigned int mask, int enabled)
+/* Some tracers require overwrite to stay enabled */
+int trace_keep_overwrite(struct tracer *tracer, u32 mask, int set)
+{
+ if (tracer->enabled && (mask & TRACE_ITER_OVERWRITE) && !set)
+ return -1;
+
+ return 0;
+}
+
+int set_tracer_flag(unsigned int mask, int enabled)
{
/* do nothing if flag is already set */
if (!!(trace_flags & mask) == !!enabled)
- return;
+ return 0;
+
+ /* Give the tracer a chance to approve the change */
+ if (current_trace->flag_changed)
+ if (current_trace->flag_changed(current_trace, mask, !!enabled))
+ return -EINVAL;
if (enabled)
trace_flags |= mask;
@@ -2543,6 +2557,8 @@ static void set_tracer_flags(unsigned int mask, int enabled)
if (mask == TRACE_ITER_OVERWRITE)
ring_buffer_change_overwrite(global_trace.buffer, enabled);
+
+ return 0;
}
static ssize_t
@@ -2552,7 +2568,7 @@ tracing_trace_options_write(struct file *filp, const char __user *ubuf,
char buf[64];
char *cmp;
int neg = 0;
- int ret;
+ int ret = -ENODEV;
int i;
if (cnt >= sizeof(buf))
@@ -2569,21 +2585,23 @@ tracing_trace_options_write(struct file *filp, const char __user *ubuf,
cmp += 2;
}
+ mutex_lock(&trace_types_lock);
+
for (i = 0; trace_options[i]; i++) {
if (strcmp(cmp, trace_options[i]) == 0) {
- set_tracer_flags(1 << i, !neg);
+ ret = set_tracer_flag(1 << i, !neg);
break;
}
}
/* If no option could be set, test the specific tracer options */
- if (!trace_options[i]) {
- mutex_lock(&trace_types_lock);
+ if (!trace_options[i])
ret = set_tracer_option(current_trace, cmp, neg);
- mutex_unlock(&trace_types_lock);
- if (ret)
- return ret;
- }
+
+ mutex_unlock(&trace_types_lock);
+
+ if (ret < 0)
+ return ret;
*ppos += cnt;
@@ -2881,6 +2899,9 @@ static int tracing_set_tracer(const char *buf)
goto out;
trace_branch_disable();
+
+ current_trace->enabled = false;
+
if (current_trace && current_trace->reset)
current_trace->reset(tr);
if (current_trace && current_trace->use_max_tr) {
@@ -2910,6 +2931,7 @@ static int tracing_set_tracer(const char *buf)
goto out;
}
+ current_trace->enabled = true;
trace_branch_enable(tr);
out:
mutex_unlock(&trace_types_lock);
@@ -4180,7 +4202,13 @@ trace_options_core_write(struct file *filp, const char __user *ubuf, size_t cnt,
if (val != 0 && val != 1)
return -EINVAL;
- set_tracer_flags(1 << index, val);
+
+ mutex_lock(&trace_types_lock);
+ ret = set_tracer_flag(1 << index, val);
+ mutex_unlock(&trace_types_lock);
+
+ if (ret < 0)
+ return ret;
*ppos += cnt;
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index f807407..123ee28 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -271,10 +271,14 @@ struct tracer {
enum print_line_t (*print_line)(struct trace_iterator *iter);
/* If you handled the flag setting, return 0 */
int (*set_flag)(u32 old_flags, u32 bit, int set);
+ /* Return 0 if OK with change, else return non-zero */
+ int (*flag_changed)(struct tracer *tracer,
+ u32 mask, int set);
struct tracer *next;
struct tracer_flags *flags;
int print_max;
int use_max_tr;
+ bool enabled;
};
@@ -776,6 +780,9 @@ extern struct list_head ftrace_events;
extern const char *__start___trace_bprintk_fmt[];
extern const char *__stop___trace_bprintk_fmt[];
+int trace_keep_overwrite(struct tracer *tracer, u32 mask, int set);
+int set_tracer_flag(unsigned int mask, int enabled);
+
#undef FTRACE_ENTRY
#define FTRACE_ENTRY(call, struct_name, id, tstruct, print) \
extern struct ftrace_event_call \
diff --git a/kernel/trace/trace_irqsoff.c b/kernel/trace/trace_irqsoff.c
index c77424b..984aad8 100644
--- a/kernel/trace/trace_irqsoff.c
+++ b/kernel/trace/trace_irqsoff.c
@@ -32,7 +32,7 @@ enum {
static int trace_type __read_mostly;
-static int save_lat_flag;
+static int save_flags;
static void stop_irqsoff_tracer(struct trace_array *tr, int graph);
static int start_irqsoff_tracer(struct trace_array *tr, int graph);
@@ -544,8 +544,11 @@ static void stop_irqsoff_tracer(struct trace_array *tr, int graph)
static void __irqsoff_tracer_init(struct trace_array *tr)
{
- save_lat_flag = trace_flags & TRACE_ITER_LATENCY_FMT;
- trace_flags |= TRACE_ITER_LATENCY_FMT;
+ save_flags = trace_flags;
+
+ /* non overwrite screws up the latency tracers */
+ set_tracer_flag(TRACE_ITER_OVERWRITE, 1);
+ set_tracer_flag(TRACE_ITER_LATENCY_FMT, 1);
tracing_max_latency = 0;
irqsoff_trace = tr;
@@ -559,10 +562,13 @@ static void __irqsoff_tracer_init(struct trace_array *tr)
static void irqsoff_tracer_reset(struct trace_array *tr)
{
+ int lat_flag = save_flags & TRACE_ITER_LATENCY_FMT;
+ int overwrite_flag = save_flags & TRACE_ITER_OVERWRITE;
+
stop_irqsoff_tracer(tr, is_graph());
- if (!save_lat_flag)
- trace_flags &= ~TRACE_ITER_LATENCY_FMT;
+ set_tracer_flag(TRACE_ITER_LATENCY_FMT, lat_flag);
+ set_tracer_flag(TRACE_ITER_OVERWRITE, overwrite_flag);
}
static void irqsoff_tracer_start(struct trace_array *tr)
@@ -595,6 +601,7 @@ static struct tracer irqsoff_tracer __read_mostly =
.print_line = irqsoff_print_line,
.flags = &tracer_flags,
.set_flag = irqsoff_set_flag,
+ .flag_changed = trace_keep_overwrite,
#ifdef CONFIG_FTRACE_SELFTEST
.selftest = trace_selftest_startup_irqsoff,
#endif
@@ -628,6 +635,7 @@ static struct tracer preemptoff_tracer __read_mostly =
.print_line = irqsoff_print_line,
.flags = &tracer_flags,
.set_flag = irqsoff_set_flag,
+ .flag_changed = trace_keep_overwrite,
#ifdef CONFIG_FTRACE_SELFTEST
.selftest = trace_selftest_startup_preemptoff,
#endif
@@ -663,6 +671,7 @@ static struct tracer preemptirqsoff_tracer __read_mostly =
.print_line = irqsoff_print_line,
.flags = &tracer_flags,
.set_flag = irqsoff_set_flag,
+ .flag_changed = trace_keep_overwrite,
#ifdef CONFIG_FTRACE_SELFTEST
.selftest = trace_selftest_startup_preemptirqsoff,
#endif
diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c
index f029dd4..1beb25e 100644
--- a/kernel/trace/trace_sched_wakeup.c
+++ b/kernel/trace/trace_sched_wakeup.c
@@ -36,7 +36,7 @@ static void __wakeup_reset(struct trace_array *tr);
static int wakeup_graph_entry(struct ftrace_graph_ent *trace);
static void wakeup_graph_return(struct ftrace_graph_ret *trace);
-static int save_lat_flag;
+static int save_flags;
#define TRACE_DISPLAY_GRAPH 1
@@ -526,8 +526,11 @@ static void stop_wakeup_tracer(struct trace_array *tr)
static int __wakeup_tracer_init(struct trace_array *tr)
{
- save_lat_flag = trace_flags & TRACE_ITER_LATENCY_FMT;
- trace_flags |= TRACE_ITER_LATENCY_FMT;
+ save_flags = trace_flags;
+
+ /* non overwrite screws up the latency tracers */
+ set_tracer_flag(TRACE_ITER_OVERWRITE, 1);
+ set_tracer_flag(TRACE_ITER_LATENCY_FMT, 1);
tracing_max_latency = 0;
wakeup_trace = tr;
@@ -549,12 +552,15 @@ static int wakeup_rt_tracer_init(struct trace_array *tr)
static void wakeup_tracer_reset(struct trace_array *tr)
{
+ int lat_flag = save_flags & TRACE_ITER_LATENCY_FMT;
+ int overwrite_flag = save_flags & TRACE_ITER_OVERWRITE;
+
stop_wakeup_tracer(tr);
/* make sure we put back any tasks we are tracing */
wakeup_reset(tr);
- if (!save_lat_flag)
- trace_flags &= ~TRACE_ITER_LATENCY_FMT;
+ set_tracer_flag(TRACE_ITER_LATENCY_FMT, lat_flag);
+ set_tracer_flag(TRACE_ITER_OVERWRITE, overwrite_flag);
}
static void wakeup_tracer_start(struct trace_array *tr)
@@ -580,6 +586,7 @@ static struct tracer wakeup_tracer __read_mostly =
.print_line = wakeup_print_line,
.flags = &tracer_flags,
.set_flag = wakeup_set_flag,
+ .flag_changed = trace_keep_overwrite,
#ifdef CONFIG_FTRACE_SELFTEST
.selftest = trace_selftest_startup_wakeup,
#endif
@@ -601,6 +608,7 @@ static struct tracer wakeup_rt_tracer __read_mostly =
.print_line = wakeup_print_line,
.flags = &tracer_flags,
.set_flag = wakeup_set_flag,
+ .flag_changed = trace_keep_overwrite,
#ifdef CONFIG_FTRACE_SELFTEST
.selftest = trace_selftest_startup_wakeup,
#endif
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index e0a3e51..a739dd1 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -453,19 +453,20 @@ int __ref online_pages(unsigned long pfn, unsigned long nr_pages)
zone->present_pages += onlined_pages;
zone->zone_pgdat->node_present_pages += onlined_pages;
- if (need_zonelists_rebuild)
- build_all_zonelists(zone);
- else
- zone_pcp_update(zone);
+ if (onlined_pages) {
+ node_set_state(zone_to_nid(zone), N_HIGH_MEMORY);
+ if (need_zonelists_rebuild)
+ build_all_zonelists(zone);
+ else
+ zone_pcp_update(zone);
+ }
mutex_unlock(&zonelists_mutex);
init_per_zone_wmark_min();
- if (onlined_pages) {
+ if (onlined_pages)
kswapd_run(zone_to_nid(zone));
- node_set_state(zone_to_nid(zone), N_HIGH_MEMORY);
- }
vm_total_pages = nr_free_pagecache_pages();
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 917ecb9..1e93a91 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -108,13 +108,6 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head)
grp = rtnl_dereference(real_dev->vlgrp);
BUG_ON(!grp);
- /* Take it out of our own structures, but be sure to interlock with
- * HW accelerating devices or SW vlan input packet processing if
- * VLAN is not 0 (leave it there for 802.1p).
- */
- if (vlan_id && (real_dev->features & NETIF_F_HW_VLAN_FILTER))
- ops->ndo_vlan_rx_kill_vid(real_dev, vlan_id);
-
grp->nr_vlans--;
if (vlan->flags & VLAN_FLAG_GVRP)
@@ -139,6 +132,13 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head)
call_rcu(&grp->rcu, vlan_rcu_free);
}
+ /* Take it out of our own structures, but be sure to interlock with
+ * HW accelerating devices or SW vlan input packet processing if
+ * VLAN is not 0 (leave it there for 802.1p).
+ */
+ if (vlan_id && (real_dev->features & NETIF_F_HW_VLAN_FILTER))
+ ops->ndo_vlan_rx_kill_vid(real_dev, vlan_id);
+
/* Get rid of the vlan's reference to real_dev */
dev_put(real_dev);
}
diff --git a/net/batman-adv/icmp_socket.c b/net/batman-adv/icmp_socket.c
index fa22ba2..ad7d8b2 100644
--- a/net/batman-adv/icmp_socket.c
+++ b/net/batman-adv/icmp_socket.c
@@ -136,10 +136,9 @@ static ssize_t bat_socket_read(struct file *file, char __user *buf,
spin_unlock_bh(&socket_client->lock);
- error = __copy_to_user(buf, &socket_packet->icmp_packet,
- socket_packet->icmp_len);
+ packet_len = min(count, socket_packet->icmp_len);
+ error = copy_to_user(buf, &socket_packet->icmp_packet, packet_len);
- packet_len = socket_packet->icmp_len;
kfree(socket_packet);
if (error)
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index cb4fb78..7b1d362 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -378,6 +378,7 @@ static void __sco_sock_close(struct sock *sk)
sco_chan_del(sk, ECONNRESET);
break;
+ case BT_CONNECT2:
case BT_CONNECT:
case BT_DISCONN:
sco_chan_del(sk, ECONNRESET);
diff --git a/net/core/dev.c b/net/core/dev.c
index ed1f0ca..e5eba56 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3070,6 +3070,7 @@ int netdev_rx_handler_register(struct net_device *dev,
if (dev->rx_handler)
return -EBUSY;
+ /* Note: rx_handler_data must be set before rx_handler */
rcu_assign_pointer(dev->rx_handler_data, rx_handler_data);
rcu_assign_pointer(dev->rx_handler, rx_handler);
@@ -3090,6 +3091,11 @@ void netdev_rx_handler_unregister(struct net_device *dev)
ASSERT_RTNL();
rcu_assign_pointer(dev->rx_handler, NULL);
+ /* a reader seeing a non NULL rx_handler in a rcu_read_lock()
+ * section has a guarantee to see a non NULL rx_handler_data
+ * as well.
+ */
+ synchronize_net();
rcu_assign_pointer(dev->rx_handler_data, NULL);
}
EXPORT_SYMBOL_GPL(netdev_rx_handler_unregister);
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 8a56d24..ab44f9d 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2244,11 +2244,8 @@ void tcp_enter_loss(struct sock *sk, int how)
if (tcp_is_reno(tp))
tcp_reset_reno_sack(tp);
- if (!how) {
- /* Push undo marker, if it was plain RTO and nothing
- * was retransmitted. */
- tp->undo_marker = tp->snd_una;
- } else {
+ tp->undo_marker = tp->snd_una;
+ if (how) {
tp->sacked_out = 0;
tp->fackets_out = 0;
}
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index e0b8bd1..0d9b959 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1579,8 +1579,11 @@ static int tcp_tso_should_defer(struct sock *sk, struct sk_buff *skb)
goto send_now;
}
- /* Ok, it looks like it is advisable to defer. */
- tp->tso_deferred = 1 | (jiffies << 1);
+ /* Ok, it looks like it is advisable to defer.
+ * Do not rearm the timer if already set to not break TCP ACK clocking.
+ */
+ if (!tp->tso_deferred)
+ tp->tso_deferred = 1 | (jiffies << 1);
return 1;
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index e845c0c..93c4721 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4553,26 +4553,20 @@ static void addrconf_sysctl_unregister(struct inet6_dev *idev)
static int __net_init addrconf_init_net(struct net *net)
{
- int err;
+ int err = -ENOMEM;
struct ipv6_devconf *all, *dflt;
- err = -ENOMEM;
- all = &ipv6_devconf;
- dflt = &ipv6_devconf_dflt;
+ all = kmemdup(&ipv6_devconf, sizeof(ipv6_devconf), GFP_KERNEL);
+ if (all == NULL)
+ goto err_alloc_all;
- if (!net_eq(net, &init_net)) {
- all = kmemdup(all, sizeof(ipv6_devconf), GFP_KERNEL);
- if (all == NULL)
- goto err_alloc_all;
+ dflt = kmemdup(&ipv6_devconf_dflt, sizeof(ipv6_devconf_dflt), GFP_KERNEL);
+ if (dflt == NULL)
+ goto err_alloc_dflt;
- dflt = kmemdup(dflt, sizeof(ipv6_devconf_dflt), GFP_KERNEL);
- if (dflt == NULL)
- goto err_alloc_dflt;
- } else {
- /* these will be inherited by all namespaces */
- dflt->autoconf = ipv6_defaults.autoconf;
- dflt->disable_ipv6 = ipv6_defaults.disable_ipv6;
- }
+ /* these will be inherited by all namespaces */
+ dflt->autoconf = ipv6_defaults.autoconf;
+ dflt->disable_ipv6 = ipv6_defaults.disable_ipv6;
net->ipv6.devconf_all = all;
net->ipv6.devconf_dflt = dflt;
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index cc61697..8ad05f8 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -2584,8 +2584,10 @@ bed:
NULL, NULL, NULL);
/* Check if the we got some results */
- if (!self->cachedaddr)
- return -EAGAIN; /* Didn't find any devices */
+ if (!self->cachedaddr) {
+ err = -EAGAIN; /* Didn't find any devices */
+ goto out;
+ }
daddr = self->cachedaddr;
/* Cleanup */
self->cachedaddr = 0;
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 482fa57..874f8ff 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -134,6 +134,7 @@ int genl_register_mc_group(struct genl_family *family,
int err = 0;
BUG_ON(grp->name[0] == '\0');
+ BUG_ON(memchr(grp->name, '\0', GENL_NAMSIZ) == NULL);
genl_lock();
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index d7824ec..3ee3fe3 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -135,6 +135,8 @@ static void __rpc_add_wait_queue(struct rpc_wait_queue *queue, struct rpc_task *
list_add_tail(&task->u.tk_wait.list, &queue->tasks[0]);
task->tk_waitqueue = queue;
queue->qlen++;
+ /* barrier matches the read in rpc_wake_up_task_queue_locked() */
+ smp_wmb();
rpc_set_queued(task);
dprintk("RPC: %5u added to queue %p \"%s\"\n",
@@ -369,8 +371,11 @@ static void __rpc_do_wake_up_task(struct rpc_wait_queue *queue, struct rpc_task
*/
static void rpc_wake_up_task_queue_locked(struct rpc_wait_queue *queue, struct rpc_task *task)
{
- if (RPC_IS_QUEUED(task) && task->tk_waitqueue == queue)
- __rpc_do_wake_up_task(queue, task);
+ if (RPC_IS_QUEUED(task)) {
+ smp_rmb();
+ if (task->tk_waitqueue == queue)
+ __rpc_do_wake_up_task(queue, task);
+ }
}
/*
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c
index f008c14..671e482 100644
--- a/net/sunrpc/xdr.c
+++ b/net/sunrpc/xdr.c
@@ -296,7 +296,7 @@ _copy_to_pages(struct page **pages, size_t pgbase, const char *p, size_t len)
* Copies data into an arbitrary memory location from an array of pages
* The copy is assumed to be non-overlapping.
*/
-static void
+void
_copy_from_pages(char *p, struct page **pages, size_t pgbase, size_t len)
{
struct page **pgfrom;
@@ -324,6 +324,7 @@ _copy_from_pages(char *p, struct page **pages, size_t pgbase, size_t len)
} while ((len -= copy) != 0);
}
+EXPORT_SYMBOL_GPL(_copy_from_pages);
/*
* xdr_shrink_bufhead
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 0722a25..afbdd0c 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -371,7 +371,7 @@ static void unix_sock_destructor(struct sock *sk)
#endif
}
-static int unix_release_sock(struct sock *sk, int embrion)
+static void unix_release_sock(struct sock *sk, int embrion)
{
struct unix_sock *u = unix_sk(sk);
struct dentry *dentry;
@@ -444,8 +444,6 @@ static int unix_release_sock(struct sock *sk, int embrion)
if (unix_tot_inflight)
unix_gc(); /* Garbage collect fds */
-
- return 0;
}
static void init_peercred(struct sock *sk)
@@ -682,9 +680,10 @@ static int unix_release(struct socket *sock)
if (!sk)
return 0;
+ unix_release_sock(sk, 0);
sock->sk = NULL;
- return unix_release_sock(sk, 0);
+ return 0;
}
static int unix_autobind(struct socket *sock)
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 373e14f..fb37356 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -91,7 +91,7 @@ int x25_parse_address_block(struct sk_buff *skb,
int needed;
int rc;
- if (skb->len < 1) {
+ if (!pskb_may_pull(skb, 1)) {
/* packet has no address block */
rc = 0;
goto empty;
@@ -100,7 +100,7 @@ int x25_parse_address_block(struct sk_buff *skb,
len = *skb->data;
needed = 1 + (len >> 4) + (len & 0x0f);
- if (skb->len < needed) {
+ if (!pskb_may_pull(skb, needed)) {
/* packet is too short to hold the addresses it claims
to hold */
rc = -1;
@@ -952,14 +952,27 @@ int x25_rx_call_request(struct sk_buff *skb, struct x25_neigh *nb,
*
* Facilities length is mandatory in call request packets
*/
- if (skb->len < 1)
+ if (!pskb_may_pull(skb, 1))
goto out_clear_request;
len = skb->data[0] + 1;
- if (skb->len < len)
+ if (!pskb_may_pull(skb, len))
goto out_clear_request;
skb_pull(skb,len);
/*
+ * Ensure that the amount of call user data is valid.
+ */
+ if (skb->len > X25_MAX_CUD_LEN)
+ goto out_clear_request;
+
+ /*
+ * Get all the call user data so it can be used in
+ * x25_find_listener and skb_copy_from_linear_data up ahead.
+ */
+ if (!pskb_may_pull(skb, skb->len))
+ goto out_clear_request;
+
+ /*
* Find a listener for the particular address/cud pair.
*/
sk = x25_find_listener(&source_addr,skb);
@@ -1167,6 +1180,9 @@ static int x25_sendmsg(struct kiocb *iocb, struct socket *sock,
* byte of the user data is the logical value of the Q Bit.
*/
if (test_bit(X25_Q_BIT_FLAG, &x25->flags)) {
+ if (!pskb_may_pull(skb, 1))
+ goto out_kfree_skb;
+
qbit = skb->data[0];
skb_pull(skb, 1);
}
@@ -1245,7 +1261,9 @@ static int x25_recvmsg(struct kiocb *iocb, struct socket *sock,
struct x25_sock *x25 = x25_sk(sk);
struct sockaddr_x25 *sx25 = (struct sockaddr_x25 *)msg->msg_name;
size_t copied;
- int qbit;
+ int qbit, header_len = x25->neighbour->extended ?
+ X25_EXT_MIN_LEN : X25_STD_MIN_LEN;
+
struct sk_buff *skb;
unsigned char *asmptr;
int rc = -ENOTCONN;
@@ -1266,6 +1284,9 @@ static int x25_recvmsg(struct kiocb *iocb, struct socket *sock,
skb = skb_dequeue(&x25->interrupt_in_queue);
+ if (!pskb_may_pull(skb, X25_STD_MIN_LEN))
+ goto out_free_dgram;
+
skb_pull(skb, X25_STD_MIN_LEN);
/*
@@ -1286,10 +1307,12 @@ static int x25_recvmsg(struct kiocb *iocb, struct socket *sock,
if (!skb)
goto out;
+ if (!pskb_may_pull(skb, header_len))
+ goto out_free_dgram;
+
qbit = (skb->data[0] & X25_Q_BIT) == X25_Q_BIT;
- skb_pull(skb, x25->neighbour->extended ?
- X25_EXT_MIN_LEN : X25_STD_MIN_LEN);
+ skb_pull(skb, header_len);
if (test_bit(X25_Q_BIT_FLAG, &x25->flags)) {
asmptr = skb_push(skb, 1);
diff --git a/net/x25/x25_dev.c b/net/x25/x25_dev.c
index 9005f6d..60749c5 100644
--- a/net/x25/x25_dev.c
+++ b/net/x25/x25_dev.c
@@ -32,6 +32,9 @@ static int x25_receive_data(struct sk_buff *skb, struct x25_neigh *nb)
unsigned short frametype;
unsigned int lci;
+ if (!pskb_may_pull(skb, X25_STD_MIN_LEN))
+ return 0;
+
frametype = skb->data[2];
lci = ((skb->data[0] << 8) & 0xF00) + ((skb->data[1] << 0) & 0x0FF);
@@ -115,6 +118,9 @@ int x25_lapb_receive_frame(struct sk_buff *skb, struct net_device *dev,
goto drop;
}
+ if (!pskb_may_pull(skb, 1))
+ return 0;
+
switch (skb->data[0]) {
case X25_IFACE_DATA:
diff --git a/net/x25/x25_facilities.c b/net/x25/x25_facilities.c
index f77e4e7..36384a1 100644
--- a/net/x25/x25_facilities.c
+++ b/net/x25/x25_facilities.c
@@ -44,7 +44,7 @@
int x25_parse_facilities(struct sk_buff *skb, struct x25_facilities *facilities,
struct x25_dte_facilities *dte_facs, unsigned long *vc_fac_mask)
{
- unsigned char *p = skb->data;
+ unsigned char *p;
unsigned int len;
*vc_fac_mask = 0;
@@ -60,14 +60,16 @@ int x25_parse_facilities(struct sk_buff *skb, struct x25_facilities *facilities,
memset(dte_facs->called_ae, '\0', sizeof(dte_facs->called_ae));
memset(dte_facs->calling_ae, '\0', sizeof(dte_facs->calling_ae));
- if (skb->len < 1)
+ if (!pskb_may_pull(skb, 1))
return 0;
- len = *p++;
+ len = skb->data[0];
- if (len >= skb->len)
+ if (!pskb_may_pull(skb, 1 + len))
return -1;
+ p = skb->data + 1;
+
while (len > 0) {
switch (*p & X25_FAC_CLASS_MASK) {
case X25_FAC_CLASS_A:
diff --git a/net/x25/x25_in.c b/net/x25/x25_in.c
index 15de65f..36ab913 100644
--- a/net/x25/x25_in.c
+++ b/net/x25/x25_in.c
@@ -107,6 +107,8 @@ static int x25_state1_machine(struct sock *sk, struct sk_buff *skb, int frametyp
/*
* Parse the data in the frame.
*/
+ if (!pskb_may_pull(skb, X25_STD_MIN_LEN))
+ goto out_clear;
skb_pull(skb, X25_STD_MIN_LEN);
len = x25_parse_address_block(skb, &source_addr,
@@ -127,9 +129,11 @@ static int x25_state1_machine(struct sock *sk, struct sk_buff *skb, int frametyp
* Copy any Call User Data.
*/
if (skb->len > 0) {
- skb_copy_from_linear_data(skb,
- x25->calluserdata.cuddata,
- skb->len);
+ if (skb->len > X25_MAX_CUD_LEN)
+ goto out_clear;
+
+ skb_copy_bits(skb, 0, x25->calluserdata.cuddata,
+ skb->len);
x25->calluserdata.cudlength = skb->len;
}
if (!sock_flag(sk, SOCK_DEAD))
@@ -137,6 +141,9 @@ static int x25_state1_machine(struct sock *sk, struct sk_buff *skb, int frametyp
break;
}
case X25_CLEAR_REQUEST:
+ if (!pskb_may_pull(skb, X25_STD_MIN_LEN + 2))
+ goto out_clear;
+
x25_write_internal(sk, X25_CLEAR_CONFIRMATION);
x25_disconnect(sk, ECONNREFUSED, skb->data[3], skb->data[4]);
break;
@@ -164,6 +171,9 @@ static int x25_state2_machine(struct sock *sk, struct sk_buff *skb, int frametyp
switch (frametype) {
case X25_CLEAR_REQUEST:
+ if (!pskb_may_pull(skb, X25_STD_MIN_LEN + 2))
+ goto out_clear;
+
x25_write_internal(sk, X25_CLEAR_CONFIRMATION);
x25_disconnect(sk, 0, skb->data[3], skb->data[4]);
break;
@@ -177,6 +187,11 @@ static int x25_state2_machine(struct sock *sk, struct sk_buff *skb, int frametyp
}
return 0;
+
+out_clear:
+ x25_write_internal(sk, X25_CLEAR_REQUEST);
+ x25_start_t23timer(sk);
+ return 0;
}
/*
@@ -206,6 +221,9 @@ static int x25_state3_machine(struct sock *sk, struct sk_buff *skb, int frametyp
break;
case X25_CLEAR_REQUEST:
+ if (!pskb_may_pull(skb, X25_STD_MIN_LEN + 2))
+ goto out_clear;
+
x25_write_internal(sk, X25_CLEAR_CONFIRMATION);
x25_disconnect(sk, 0, skb->data[3], skb->data[4]);
break;
@@ -304,6 +322,12 @@ static int x25_state3_machine(struct sock *sk, struct sk_buff *skb, int frametyp
}
return queued;
+
+out_clear:
+ x25_write_internal(sk, X25_CLEAR_REQUEST);
+ x25->state = X25_STATE_2;
+ x25_start_t23timer(sk);
+ return 0;
}
/*
@@ -313,13 +337,13 @@ static int x25_state3_machine(struct sock *sk, struct sk_buff *skb, int frametyp
*/
static int x25_state4_machine(struct sock *sk, struct sk_buff *skb, int frametype)
{
+ struct x25_sock *x25 = x25_sk(sk);
+
switch (frametype) {
case X25_RESET_REQUEST:
x25_write_internal(sk, X25_RESET_CONFIRMATION);
case X25_RESET_CONFIRMATION: {
- struct x25_sock *x25 = x25_sk(sk);
-
x25_stop_timer(sk);
x25->condition = 0x00;
x25->va = 0;
@@ -331,6 +355,9 @@ static int x25_state4_machine(struct sock *sk, struct sk_buff *skb, int frametyp
break;
}
case X25_CLEAR_REQUEST:
+ if (!pskb_may_pull(skb, X25_STD_MIN_LEN + 2))
+ goto out_clear;
+
x25_write_internal(sk, X25_CLEAR_CONFIRMATION);
x25_disconnect(sk, 0, skb->data[3], skb->data[4]);
break;
@@ -340,6 +367,12 @@ static int x25_state4_machine(struct sock *sk, struct sk_buff *skb, int frametyp
}
return 0;
+
+out_clear:
+ x25_write_internal(sk, X25_CLEAR_REQUEST);
+ x25->state = X25_STATE_2;
+ x25_start_t23timer(sk);
+ return 0;
}
/* Higher level upcall for a LAPB frame */
diff --git a/net/x25/x25_link.c b/net/x25/x25_link.c
index 2130692..0a9e074 100644
--- a/net/x25/x25_link.c
+++ b/net/x25/x25_link.c
@@ -90,6 +90,9 @@ void x25_link_control(struct sk_buff *skb, struct x25_neigh *nb,
break;
case X25_DIAGNOSTIC:
+ if (!pskb_may_pull(skb, X25_STD_MIN_LEN + 4))
+ break;
+
printk(KERN_WARNING "x25: diagnostic #%d - "
"%02X %02X %02X\n",
skb->data[3], skb->data[4],
diff --git a/net/x25/x25_subr.c b/net/x25/x25_subr.c
index dc20cf1..faf98d8 100644
--- a/net/x25/x25_subr.c
+++ b/net/x25/x25_subr.c
@@ -271,7 +271,11 @@ int x25_decode(struct sock *sk, struct sk_buff *skb, int *ns, int *nr, int *q,
int *d, int *m)
{
struct x25_sock *x25 = x25_sk(sk);
- unsigned char *frame = skb->data;
+ unsigned char *frame;
+
+ if (!pskb_may_pull(skb, X25_STD_MIN_LEN))
+ return X25_ILLEGAL;
+ frame = skb->data;
*ns = *nr = *q = *d = *m = 0;
@@ -296,6 +300,10 @@ int x25_decode(struct sock *sk, struct sk_buff *skb, int *ns, int *nr, int *q,
if (frame[2] == X25_RR ||
frame[2] == X25_RNR ||
frame[2] == X25_REJ) {
+ if (!pskb_may_pull(skb, X25_EXT_MIN_LEN))
+ return X25_ILLEGAL;
+ frame = skb->data;
+
*nr = (frame[3] >> 1) & 0x7F;
return frame[2];
}
@@ -310,6 +318,10 @@ int x25_decode(struct sock *sk, struct sk_buff *skb, int *ns, int *nr, int *q,
if (x25->neighbour->extended) {
if ((frame[2] & 0x01) == X25_DATA) {
+ if (!pskb_may_pull(skb, X25_EXT_MIN_LEN))
+ return X25_ILLEGAL;
+ frame = skb->data;
+
*q = (frame[0] & X25_Q_BIT) == X25_Q_BIT;
*d = (frame[0] & X25_D_BIT) == X25_D_BIT;
*m = (frame[3] & X25_EXT_M_BIT) == X25_EXT_M_BIT;
diff --git a/virt/kvm/irq_comm.c b/virt/kvm/irq_comm.c
index 9f614b4..272407c 100644
--- a/virt/kvm/irq_comm.c
+++ b/virt/kvm/irq_comm.c
@@ -318,6 +318,7 @@ static int setup_routing_entry(struct kvm_irq_routing_table *rt,
*/
hlist_for_each_entry(ei, n, &rt->map[ue->gsi], link)
if (ei->type == KVM_IRQ_ROUTING_MSI ||
+ ue->type == KVM_IRQ_ROUTING_MSI ||
ue->u.irqchip.irqchip == ei->irqchip.irqchip)
return r;
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 6b39ba9..88dde44 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1616,18 +1616,22 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, u32 id)
r = kvm_arch_vcpu_setup(vcpu);
if (r)
- return r;
+ goto vcpu_destroy;
mutex_lock(&kvm->lock);
+ if (!kvm_vcpu_compatible(vcpu)) {
+ r = -EINVAL;
+ goto unlock_vcpu_destroy;
+ }
if (atomic_read(&kvm->online_vcpus) == KVM_MAX_VCPUS) {
r = -EINVAL;
- goto vcpu_destroy;
+ goto unlock_vcpu_destroy;
}
kvm_for_each_vcpu(r, v, kvm)
if (v->vcpu_id == id) {
r = -EEXIST;
- goto vcpu_destroy;
+ goto unlock_vcpu_destroy;
}
BUG_ON(kvm->vcpus[atomic_read(&kvm->online_vcpus)]);
@@ -1637,7 +1641,7 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, u32 id)
r = create_vcpu_fd(vcpu);
if (r < 0) {
kvm_put_kvm(kvm);
- goto vcpu_destroy;
+ goto unlock_vcpu_destroy;
}
kvm->vcpus[atomic_read(&kvm->online_vcpus)] = vcpu;
@@ -1651,8 +1655,9 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, u32 id)
mutex_unlock(&kvm->lock);
return r;
-vcpu_destroy:
+unlock_vcpu_destroy:
mutex_unlock(&kvm->lock);
+vcpu_destroy:
kvm_arch_vcpu_destroy(vcpu);
return r;
}
--
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