4.7.8-stable review

cover

	kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.7.8-rc1.gz
    Linux 4.7.8-rc1
    x86/apic: Get rid of apic_version[] array
    mfd: 88pm80x: Double shifting bug in suspend/resume
    mfd: rtsx_usb: Avoid setting ucr->current_sg.status
 Documentation/virtual/kvm/devices/vcpu.txt |   4 +-
 Makefile                                   |   4 +-
 arch/arm/boot/dts/armada-390.dtsi          |   3 +
 arch/arm/boot/dts/qcom-apq8064.dtsi        |  76 ++++++++++++++++------
 arch/arm64/kernel/stacktrace.c             |   5 +-
 arch/arm64/kernel/traps.c                  |  10 +--
 arch/mips/kvm/emulate.c                    |  63 +++++++++++++++---
 arch/powerpc/include/asm/pci-bridge.h      |   1 +
 arch/powerpc/include/asm/reg.h             |   1 +
 arch/powerpc/kernel/pci-common.c           |  36 ++++++++++
 arch/powerpc/kvm/book3s_emulate.c          |   2 +
 arch/powerpc/kvm/booke.c                   |   2 +-
 arch/powerpc/platforms/pseries/pci.c       |   4 ++
 arch/powerpc/platforms/pseries/pci_dlpar.c |   7 +-
 arch/x86/include/asm/fpu/xstate.h          |   7 +-
 arch/x86/include/asm/mpspec.h              |   2 +-
 arch/x86/kernel/acpi/boot.c                |   2 +-
 arch/x86/kernel/apic/apic.c                |  17 ++---
 arch/x86/kernel/apic/io_apic.c             |   4 +-
 arch/x86/kernel/apic/probe_32.c            |   2 +-
 arch/x86/kernel/apic/vector.c              |  23 ++++++-
 arch/x86/kernel/e820.c                     |  14 ++--
 arch/x86/kernel/process_64.c               |  13 ++--
 arch/x86/kernel/ptrace.c                   |   4 +-
 arch/x86/kernel/smpboot.c                  |  28 +++++---
 arch/x86/xen/smp.c                         |   6 ++
 drivers/char/tpm/tpm-dev.c                 |   2 +-
 drivers/char/tpm/tpm-interface.c           |  51 ++++++++-------
 drivers/char/tpm/tpm-sysfs.c               |   2 +-
 drivers/char/tpm/tpm.h                     |  12 ++--
 drivers/char/tpm/tpm2-cmd.c                | 101 +++++++++++++++++++----------
 drivers/char/tpm/tpm_crb.c                 |   7 +-
 drivers/cpuidle/cpuidle-arm.c              |   1 +
 drivers/mfd/Kconfig                        |   1 +
 drivers/mfd/atmel-hlcdc.c                  |   5 +-
 drivers/mfd/rtsx_usb.c                     |  10 +--
 drivers/misc/cxl/vphb.c                    |  10 ++-
 drivers/pci/host-bridge.c                  |   1 +
 drivers/usb/dwc3/gadget.c                  |   3 +-
 include/linux/mfd/88pm80x.h                |   4 +-
 kernel/time/timekeeping.c                  |   7 +-
 security/integrity/ima/ima_appraise.c      |   4 +-
 security/integrity/ima/ima_main.c          |   2 +-
 sound/pci/ali5451/ali5451.c                |   2 +
 sound/usb/line6/driver.c                   |   2 +-
 sound/usb/mixer_quirks.c                   |  22 +++++--
 virt/kvm/arm/pmu.c                         |   8 +++
 virt/kvm/arm/vgic/vgic.c                   |   6 ++
 48 files changed, 426 insertions(+), 177 deletions(-)
  # ls -ld /sys/block/sd* | grep -m1 0021:01:00.0
  <...> /sys/block/sdaa -> ../devices/pci0021:01/0021:01:00.0/<...>
  # ls -ld /sys/block/sd* | grep -m1 0021:01:00.1
  <...> /sys/block/sdab -> ../devices/pci0021:01/0021:01:00.1/<...>
  # cat >/dev/sdaa & pid1=$!
  # cat >/dev/sdab & pid2=$!
  # drmgr -w 5 -d 1 -c phb -s 'PHB 33' -r
  Validating PHB DLPAR capability...yes.
  [  594.306719] pci_hp_remove_devices: PCI: Removing devices on bus 0021:01
  [  594.306738] pci_hp_remove_devices:    Removing 0021:01:00.0...
  ...
  [  598.236381] pci_hp_remove_devices:    Removing 0021:01:00.1...
  ...
  [  611.972077] pci_bus 0021:01: busn_res: [bus 01-ff] is released
  [  611.972140] rpadlpar_io: slot PHB 33 removed
  # kill -9 $pid1
  # kill -9 $pid2
  [  632.918088] pcibios_free_controller_deferred: domain 33, dynamic 1
  # drmgr -w 5 -d 1 -c phb -s 'PHB 33' -r
  Validating PHB DLPAR capability...yes.
  [  916.357363] pci_hp_remove_devices: PCI: Removing devices on bus 0021:01
  [  916.357386] pci_hp_remove_devices:    Removing 0021:01:00.0...
  ...
  [  920.566527] pci_hp_remove_devices:    Removing 0021:01:00.1...
  ...
  [  933.955873] pci_bus 0021:01: busn_res: [bus 01-ff] is released
  [  933.955977] pcibios_free_controller_deferred: domain 33, dynamic 1
  [  933.955999] rpadlpar_io: slot PHB 33 removed
---
 arch/powerpc/include/asm/pci-bridge.h      |    1 
 arch/powerpc/kernel/pci-common.c           |   36 +++++++++++++++++++++++++++++
 arch/powerpc/platforms/pseries/pci.c       |    4 +++
 arch/powerpc/platforms/pseries/pci_dlpar.c |    7 ++++-
 4 files changed, 46 insertions(+), 2 deletions(-)
@@ -299,6 +299,7 @@ extern void pci_process_bridge_OF_ranges
 /* Allocate & free a PCI host bridge structure */
 extern struct pci_controller *pcibios_alloc_controller(struct device_node *dev);
 extern void pcibios_free_controller(struct pci_controller *phb);
+extern void pcibios_free_controller_deferred(struct pci_host_bridge *bridge);
 
 #ifdef CONFIG_PCI
 extern int pcibios_vaddr_is_ioport(void __iomem *address);

@@ -103,6 +103,42 @@ void pcibios_free_controller(struct pci_
 EXPORT_SYMBOL_GPL(pcibios_free_controller);
 
 /*
+ * This function is used to call pcibios_free_controller()
+ * in a deferred manner: a callback from the PCI subsystem.
+ *
+ * _*DO NOT*_ call pcibios_free_controller() explicitly if
+ * this is used (or it may access an invalid *phb pointer).
+ *
+ * The callback occurs when all references to the root bus
+ * are dropped (e.g., child buses/devices and their users).
+ *
+ * It's called as .release_fn() of 'struct pci_host_bridge'
+ * which is associated with the 'struct pci_controller.bus'
+ * (root bus) - it expects .release_data to hold a pointer
+ * to 'struct pci_controller'.
+ *
+ * In order to use it, register .release_fn()/release_data
+ * like this:
+ *
+ * pci_set_host_bridge_release(bridge,
+ *                             pcibios_free_controller_deferred
+ *                             (void *) phb);
+ *
+ * e.g. in the pcibios_root_bridge_prepare() callback from
+ * pci_create_root_bus().
+ */
+void pcibios_free_controller_deferred(struct pci_host_bridge *bridge)
+{
+	struct pci_controller *phb = (struct pci_controller *)
+					 bridge->release_data;
+
+	pr_debug("domain %d, dynamic %d\n", phb->global_number, phb->is_dynamic);
+
+	pcibios_free_controller(phb);
+}
+EXPORT_SYMBOL_GPL(pcibios_free_controller_deferred);
+
+/*
  * The function is used to return the minimal alignment
  * for memory or I/O windows of the associated P2P bridge.
  * By default, 4KiB alignment for I/O windows and 1MiB for

@@ -119,6 +119,10 @@ int pseries_root_bridge_prepare(struct p
 
 	bus = bridge->bus;
 
+	/* Rely on the pcibios_free_controller_deferred() callback. */
+	pci_set_host_bridge_release(bridge, pcibios_free_controller_deferred,
+					(void *) pci_bus_to_host(bus));
+
 	dn = pcibios_get_phb_of_node(bus);
 	if (!dn)
 		return 0;

@@ -106,8 +106,11 @@ int remove_phb_dynamic(struct pci_contro
 		release_resource(res);
 	}
 
-	/* Free pci_controller data structure */
-	pcibios_free_controller(phb);
+	/*
+	 * The pci_controller data structure is freed by
+	 * the pcibios_free_controller_deferred() callback;
+	 * see pseries_root_bridge_prepare().
+	 */
 
 	return 0;
 }

---
 drivers/misc/cxl/vphb.c   |   10 +++++++++-
 drivers/pci/host-bridge.c |    1 +
 2 files changed, 10 insertions(+), 1 deletion(-)
@@ -243,6 +243,11 @@ int cxl_pci_vphb_add(struct cxl_afu *afu
 	if (phb->bus == NULL)
 		return -ENXIO;
 
+	/* Set release hook on root bus */
+	pci_set_host_bridge_release(to_pci_host_bridge(phb->bus->bridge),
+				    pcibios_free_controller_deferred,
+				    (void *) phb);
+
 	/* Claim resources. This might need some rework as well depending
 	 * whether we are doing probe-only or not, like assigning unassigned
 	 * resources etc...

@@ -269,7 +274,10 @@ void cxl_pci_vphb_remove(struct cxl_afu
 	afu->phb = NULL;
 
 	pci_remove_root_bus(phb->bus);
-	pcibios_free_controller(phb);
+	/*
+	 * We don't free phb here - that's handled by
+	 * pcibios_free_controller_deferred()
+	 */
 }
 
 bool cxl_pci_is_vphb_device(struct pci_dev *dev)

@@ -44,6 +44,7 @@ void pci_set_host_bridge_release(struct
 	bridge->release_fn = release_fn;
 	bridge->release_data = release_data;
 }
+EXPORT_SYMBOL_GPL(pci_set_host_bridge_release);
 
 void pcibios_resource_to_bus(struct pci_bus *bus, struct pci_bus_region *region,
 			     struct resource *res)

 swapper     0 [000]   253.427536:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]   254.426573:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]   254.426687:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]   254.426800:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]   254.426905:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]   254.427022:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]   254.427127:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]   254.427239:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]   254.427346:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]   254.427463:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]   255.426572:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]    39.953768:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]    40.064839:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]    40.175956:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]    40.287103:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]    40.398217:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]    40.509324:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]    40.620437:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]    40.731546:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]    40.842654:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]    40.953772:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
 swapper     0 [000]    41.064881:  111111111 cpu-clock:  ffffffff810a0de6 native_safe_halt+0x6 ([kernel.kallsyms])
---
 kernel/time/timekeeping.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
@@ -403,8 +403,11 @@ static __always_inline u64 __ktime_get_f
 		tkr = tkf->base + (seq & 0x01);
 		now = ktime_to_ns(tkr->base);
 
-		now += clocksource_delta(tkr->read(tkr->clock),
-					 tkr->cycle_last, tkr->mask);
+		now += timekeeping_delta_to_ns(tkr,
+				clocksource_delta(
+					tkr->read(tkr->clock),
+					tkr->cycle_last,
+					tkr->mask));
 	} while (read_seqcount_retry(&tkf->seq, seq));
 
 	return now;

---
 drivers/usb/dwc3/gadget.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
@@ -363,7 +363,8 @@ static int dwc3_send_clear_stall_ep_cmd(
 	 * IN transfers due to a mishandled error condition. Synopsys
 	 * STAR 9000614252.
 	 */
-	if (dep->direction && (dwc->revision >= DWC3_REVISION_260A))
+	if (dep->direction && (dwc->revision >= DWC3_REVISION_260A) &&
+	    (dwc->gadget.speed >= USB_SPEED_SUPER))
 		cmd |= DWC3_DEPCMD_CLEARPENDIN;
 
 	memset(&params, 0, sizeof(params));

---
 sound/pci/ali5451/ali5451.c |    2 ++
 1 file changed, 2 insertions(+)
@@ -1408,6 +1408,7 @@ snd_ali_playback_pointer(struct snd_pcm_
 	spin_unlock(&codec->reg_lock);
 	dev_dbg(codec->card->dev, "playback pointer returned cso=%xh.\n", cso);
 
+	cso %= runtime->buffer_size;
 	return cso;
 }
 

@@ -1428,6 +1429,7 @@ static snd_pcm_uframes_t snd_ali_pointer
 	cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2));
 	spin_unlock(&codec->reg_lock);
 
+	cso %= runtime->buffer_size;
 	return cso;
 }
 

---
 sound/usb/mixer_quirks.c |   22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)
@@ -1831,6 +1831,7 @@ void snd_usb_mixer_rc_memory_change(stru
 }
 
 static void snd_dragonfly_quirk_db_scale(struct usb_mixer_interface *mixer,
+					 struct usb_mixer_elem_info *cval,
 					 struct snd_kcontrol *kctl)
 {
 	/* Approximation using 10 ranges based on output measurement on hw v1.2.

@@ -1848,10 +1849,19 @@ static void snd_dragonfly_quirk_db_scale
 		41, 50, TLV_DB_MINMAX_ITEM(-441, 0),
 	);
 
-	usb_audio_info(mixer->chip, "applying DragonFly dB scale quirk\n");
-	kctl->tlv.p = scale;
-	kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
-	kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
+	if (cval->min == 0 && cval->max == 50) {
+		usb_audio_info(mixer->chip, "applying DragonFly dB scale quirk (0-50 variant)\n");
+		kctl->tlv.p = scale;
+		kctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
+		kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
+
+	} else if (cval->min == 0 && cval->max <= 1000) {
+		/* Some other clearly broken DragonFly variant.
+		 * At least a 0..53 variant (hw v1.0) exists.
+		 */
+		usb_audio_info(mixer->chip, "ignoring too narrow dB range on a DragonFly device");
+		kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
+	}
 }
 
 void snd_usb_mixer_fu_apply_quirk(struct usb_mixer_interface *mixer,

@@ -1860,8 +1870,8 @@ void snd_usb_mixer_fu_apply_quirk(struct
 {
 	switch (mixer->chip->usb_id) {
 	case USB_ID(0x21b4, 0x0081): /* AudioQuest DragonFly */
-		if (unitid == 7 && cval->min == 0 && cval->max == 50)
-			snd_dragonfly_quirk_db_scale(mixer, kctl);
+		if (unitid == 7 && cval->control == UAC_FU_VOLUME)
+			snd_dragonfly_quirk_db_scale(mixer, cval, kctl);
 		break;
 	}
 }

---
 sound/usb/line6/driver.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
@@ -29,7 +29,7 @@
 /*
 	This is Line 6's MIDI manufacturer ID.
 */
-const unsigned char line6_midi_id[] = {
+const unsigned char line6_midi_id[3] = {
 	0x00, 0x01, 0x0c
 };
 EXPORT_SYMBOL_GPL(line6_midi_id);

---
 drivers/mfd/rtsx_usb.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)
@@ -46,9 +46,6 @@ static void rtsx_usb_sg_timed_out(unsign
 
 	dev_dbg(&ucr->pusb_intf->dev, "%s: sg transfer timed out", __func__);
 	usb_sg_cancel(&ucr->current_sg);
-
-	/* we know the cancellation is caused by time-out */
-	ucr->current_sg.status = -ETIMEDOUT;
 }
 
 static int rtsx_usb_bulk_transfer_sglist(struct rtsx_ucr *ucr,

@@ -67,12 +64,15 @@ static int rtsx_usb_bulk_transfer_sglist
 	ucr->sg_timer.expires = jiffies + msecs_to_jiffies(timeout);
 	add_timer(&ucr->sg_timer);
 	usb_sg_wait(&ucr->current_sg);
-	del_timer_sync(&ucr->sg_timer);
+	if (!del_timer_sync(&ucr->sg_timer))
+		ret = -ETIMEDOUT;
+	else
+		ret = ucr->current_sg.status;
 
 	if (act_len)
 		*act_len = ucr->current_sg.bytes;
 
-	return ucr->current_sg.status;
+	return ret;
 }
 
 int rtsx_usb_transfer_data(struct rtsx_ucr *ucr, unsigned int pipe,

---
 drivers/mfd/atmel-hlcdc.c |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
@@ -50,8 +50,9 @@ static int regmap_atmel_hlcdc_reg_write(
 	if (reg <= ATMEL_HLCDC_DIS) {
 		u32 status;
 
-		readl_poll_timeout(hregmap->regs + ATMEL_HLCDC_SR, status,
-				   !(status & ATMEL_HLCDC_SIP), 1, 100);
+		readl_poll_timeout_atomic(hregmap->regs + ATMEL_HLCDC_SR,
+					  status, !(status & ATMEL_HLCDC_SIP),
+					  1, 100);
 	}
 
 	writel(val, hregmap->regs + reg);

---
 include/linux/mfd/88pm80x.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
@@ -350,7 +350,7 @@ static inline int pm80x_dev_suspend(stru
 	int irq = platform_get_irq(pdev, 0);
 
 	if (device_may_wakeup(dev))
-		set_bit((1 << irq), &chip->wu_flag);
+		set_bit(irq, &chip->wu_flag);
 
 	return 0;
 }

@@ -362,7 +362,7 @@ static inline int pm80x_dev_resume(struc
 	int irq = platform_get_irq(pdev, 0);
 
 	if (device_may_wakeup(dev))
-		clear_bit((1 << irq), &chip->wu_flag);
+		clear_bit(irq, &chip->wu_flag);
 
 	return 0;
 }

---
 arch/x86/xen/smp.c |    6 ++++++
 1 file changed, 6 insertions(+)
@@ -87,6 +87,12 @@ static void cpu_bringup(void)
 	cpu_data(cpu).x86_max_cores = 1;
 	set_cpu_sibling_map(cpu);
 
+	/*
+	 * identify_cpu() may have set logical_pkg_id to -1 due
+	 * to incorrect phys_proc_id. Let's re-comupte it.
+	 */
+	topology_update_package_map(apic->cpu_present_to_apicid(cpu), cpu);
+
 	xen_setup_cpu_clockevents();
 
 	notify_cpu_starting(cpu);

---
 arch/powerpc/include/asm/reg.h    |    1 +
 arch/powerpc/kvm/book3s_emulate.c |    2 ++
 2 files changed, 3 insertions(+)
@@ -718,6 +718,7 @@
 #define   MMCR0_FCHV	0x00000001UL /* freeze conditions in hypervisor mode */
 #define SPRN_MMCR1	798
 #define SPRN_MMCR2	785
+#define SPRN_UMMCR2	769
 #define SPRN_MMCRA	0x312
 #define   MMCRA_SDSYNC	0x80000000UL /* SDAR synced with SIAR */
 #define   MMCRA_SDAR_DCACHE_MISS 0x40000000UL

@@ -498,6 +498,7 @@ int kvmppc_core_emulate_mtspr_pr(struct
 	case SPRN_MMCR0:
 	case SPRN_MMCR1:
 	case SPRN_MMCR2:
+	case SPRN_UMMCR2:
 #endif
 		break;
 unprivileged:

@@ -640,6 +641,7 @@ int kvmppc_core_emulate_mfspr_pr(struct
 	case SPRN_MMCR0:
 	case SPRN_MMCR1:
 	case SPRN_MMCR2:
+	case SPRN_UMMCR2:
 	case SPRN_TIR:
 #endif
 		*spr_val = 0;

---
 arch/mips/kvm/emulate.c |   63 ++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 53 insertions(+), 10 deletions(-)
@@ -807,6 +807,47 @@ enum emulation_result kvm_mips_emul_tlbr
 	return EMULATE_FAIL;
 }
 
+/**
+ * kvm_mips_invalidate_guest_tlb() - Indicates a change in guest MMU map.
+ * @vcpu:	VCPU with changed mappings.
+ * @tlb:	TLB entry being removed.
+ *
+ * This is called to indicate a single change in guest MMU mappings, so that we
+ * can arrange TLB flushes on this and other CPUs.
+ */
+static void kvm_mips_invalidate_guest_tlb(struct kvm_vcpu *vcpu,
+					  struct kvm_mips_tlb *tlb)
+{
+	int cpu, i;
+	bool user;
+
+	/* No need to flush for entries which are already invalid */
+	if (!((tlb->tlb_lo[0] | tlb->tlb_lo[1]) & ENTRYLO_V))
+		return;
+	/* User address space doesn't need flushing for KSeg2/3 changes */
+	user = tlb->tlb_hi < KVM_GUEST_KSEG0;
+
+	preempt_disable();
+
+	/*
+	 * Probe the shadow host TLB for the entry being overwritten, if one
+	 * matches, invalidate it
+	 */
+	kvm_mips_host_tlb_inv(vcpu, tlb->tlb_hi);
+
+	/* Invalidate the whole ASID on other CPUs */
+	cpu = smp_processor_id();
+	for_each_possible_cpu(i) {
+		if (i == cpu)
+			continue;
+		if (user)
+			vcpu->arch.guest_user_asid[i] = 0;
+		vcpu->arch.guest_kernel_asid[i] = 0;
+	}
+
+	preempt_enable();
+}
+
 /* Write Guest TLB Entry @ Index */
 enum emulation_result kvm_mips_emul_tlbwi(struct kvm_vcpu *vcpu)
 {

@@ -826,11 +867,8 @@ enum emulation_result kvm_mips_emul_tlbw
 	}
 
 	tlb = &vcpu->arch.guest_tlb[index];
-	/*
-	 * Probe the shadow host TLB for the entry being overwritten, if one
-	 * matches, invalidate it
-	 */
-	kvm_mips_host_tlb_inv(vcpu, tlb->tlb_hi);
+
+	kvm_mips_invalidate_guest_tlb(vcpu, tlb);
 
 	tlb->tlb_mask = kvm_read_c0_guest_pagemask(cop0);
 	tlb->tlb_hi = kvm_read_c0_guest_entryhi(cop0);

@@ -859,11 +897,7 @@ enum emulation_result kvm_mips_emul_tlbw
 
 	tlb = &vcpu->arch.guest_tlb[index];
 
-	/*
-	 * Probe the shadow host TLB for the entry being overwritten, if one
-	 * matches, invalidate it
-	 */
-	kvm_mips_host_tlb_inv(vcpu, tlb->tlb_hi);
+	kvm_mips_invalidate_guest_tlb(vcpu, tlb);
 
 	tlb->tlb_mask = kvm_read_c0_guest_pagemask(cop0);
 	tlb->tlb_hi = kvm_read_c0_guest_entryhi(cop0);

@@ -982,6 +1016,7 @@ enum emulation_result kvm_mips_emulate_C
 	int32_t rt, rd, copz, sel, co_bit, op;
 	uint32_t pc = vcpu->arch.pc;
 	unsigned long curr_pc;
+	int cpu, i;
 
 	/*
 	 * Update PC and hold onto current PC in case there is

@@ -1089,8 +1124,16 @@ enum emulation_result kvm_mips_emulate_C
 						vcpu->arch.gprs[rt]
 						& KVM_ENTRYHI_ASID);
 
+					preempt_disable();
 					/* Blow away the shadow host TLBs */
 					kvm_mips_flush_host_tlb(1);
+					cpu = smp_processor_id();
+					for_each_possible_cpu(i)
+						if (i != cpu) {
+							vcpu->arch.guest_user_asid[i] = 0;
+							vcpu->arch.guest_kernel_asid[i] = 0;
+						}
+					preempt_enable();
 				}
 				kvm_write_c0_guest_entryhi(cop0,
 							   vcpu->arch.gprs[rt]);

---
 Documentation/virtual/kvm/devices/vcpu.txt |    4 +++-
 virt/kvm/arm/pmu.c                         |    8 ++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)
@@ -30,4 +30,6 @@ Returns: -ENODEV: PMUv3 not supported
                  attribute
          -EBUSY: PMUv3 already initialized
 
-Request the initialization of the PMUv3.
+Request the initialization of the PMUv3.  This must be done after creating the
+in-kernel irqchip.  Creating a PMU with a userspace irqchip is currently not
+supported.

@@ -423,6 +423,14 @@ static int kvm_arm_pmu_v3_init(struct kv
 	if (!kvm_arm_support_pmu_v3())
 		return -ENODEV;
 
+	/*
+	 * We currently require an in-kernel VGIC to use the PMU emulation,
+	 * because we do not support forwarding PMU overflow interrupts to
+	 * userspace yet.
+	 */
+	if (!irqchip_in_kernel(vcpu->kvm) || !vgic_initialized(vcpu->kvm))
+		return -ENODEV;
+
 	if (!test_bit(KVM_ARM_VCPU_PMU_V3, vcpu->arch.features) ||
 	    !kvm_arm_pmu_irq_initialized(vcpu))
 		return -ENXIO;

---
 virt/kvm/arm/vgic/vgic.c |    6 ++++++
 1 file changed, 6 insertions(+)
@@ -553,6 +553,9 @@ next:
 /* Sync back the hardware VGIC state into our emulation after a guest's run. */
 void kvm_vgic_sync_hwstate(struct kvm_vcpu *vcpu)
 {
+	if (unlikely(!vgic_initialized(vcpu->kvm)))
+		return;
+
 	vgic_process_maintenance_interrupt(vcpu);
 	vgic_fold_lr_state(vcpu);
 	vgic_prune_ap_list(vcpu);

@@ -561,6 +564,9 @@ void kvm_vgic_sync_hwstate(struct kvm_vc
 /* Flush our emulation state into the GIC hardware before entering the guest. */
 void kvm_vgic_flush_hwstate(struct kvm_vcpu *vcpu)
 {
+	if (unlikely(!vgic_initialized(vcpu->kvm)))
+		return;
+
 	spin_lock(&vcpu->arch.vgic_cpu.ap_list_lock);
 	vgic_flush_lr_state(vcpu);
 	spin_unlock(&vcpu->arch.vgic_cpu.ap_list_lock);

---
 arch/powerpc/kvm/booke.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
@@ -2038,7 +2038,7 @@ int kvm_arch_vcpu_ioctl_set_guest_debug(
 		if (type == KVMPPC_DEBUG_NONE)
 			continue;
 
-		if (type & !(KVMPPC_DEBUG_WATCH_READ |
+		if (type & ~(KVMPPC_DEBUG_WATCH_READ |
 			     KVMPPC_DEBUG_WATCH_WRITE |
 			     KVMPPC_DEBUG_BREAKPOINT))
 			return -EINVAL;

---
 arch/arm64/kernel/stacktrace.c |    5 ++++-
 arch/arm64/kernel/traps.c      |   10 +++++-----
 2 files changed, 9 insertions(+), 6 deletions(-)
@@ -43,6 +43,9 @@ int notrace unwind_frame(struct task_str
 	unsigned long fp = frame->fp;
 	unsigned long irq_stack_ptr;
 
+	if (!tsk)
+		tsk = current;
+
 	/*
 	 * Switching between stacks is valid when tracing current and in
 	 * non-preemptible context.

@@ -67,7 +70,7 @@ int notrace unwind_frame(struct task_str
 	frame->pc = READ_ONCE_NOCHECK(*(unsigned long *)(fp + 8));
 
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
-	if (tsk && tsk->ret_stack &&
+	if (tsk->ret_stack &&
 			(frame->pc == (unsigned long)return_to_handler)) {
 		/*
 		 * This is a case where function graph tracer has

@@ -149,6 +149,11 @@ static void dump_backtrace(struct pt_reg
 	unsigned long irq_stack_ptr;
 	int skip;
 
+	pr_debug("%s(regs = %p tsk = %p)\n", __func__, regs, tsk);
+
+	if (!tsk)
+		tsk = current;
+
 	/*
 	 * Switching between stacks is valid when tracing current and in
 	 * non-preemptible context.

@@ -158,11 +163,6 @@ static void dump_backtrace(struct pt_reg
 	else
 		irq_stack_ptr = 0;
 
-	pr_debug("%s(regs = %p tsk = %p)\n", __func__, regs, tsk);
-
-	if (!tsk)
-		tsk = current;
-
 	if (tsk == current) {
 		frame.fp = (unsigned long)__builtin_frame_address(0);
 		frame.sp = current_stack_pointer;

---
 arch/x86/kernel/e820.c |   14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)
@@ -348,7 +348,7 @@ int __init sanitize_e820_map(struct e820
 		 * continue building up new bios map based on this
 		 * information
 		 */
-		if (current_type != last_type || current_type == E820_PRAM) {
+		if (current_type != last_type) {
 			if (last_type != 0)	 {
 				new_bios[new_bios_entry].size =
 					change_point[chgidx]->addr - last_addr;

@@ -754,7 +754,7 @@ u64 __init early_reserve_e820(u64 size,
 /*
  * Find the highest page frame number we have available
  */
-static unsigned long __init e820_end_pfn(unsigned long limit_pfn)
+static unsigned long __init e820_end_pfn(unsigned long limit_pfn, unsigned type)
 {
 	int i;
 	unsigned long last_pfn = 0;

@@ -765,11 +765,7 @@ static unsigned long __init e820_end_pfn
 		unsigned long start_pfn;
 		unsigned long end_pfn;
 
-		/*
-		 * Persistent memory is accounted as ram for purposes of
-		 * establishing max_pfn and mem_map.
-		 */
-		if (ei->type != E820_RAM && ei->type != E820_PRAM)
+		if (ei->type != type)
 			continue;
 
 		start_pfn = ei->addr >> PAGE_SHIFT;

@@ -794,12 +790,12 @@ static unsigned long __init e820_end_pfn
 }
 unsigned long __init e820_end_of_ram_pfn(void)
 {
-	return e820_end_pfn(MAX_ARCH_PFN);
+	return e820_end_pfn(MAX_ARCH_PFN, E820_RAM);
 }
 
 unsigned long __init e820_end_of_low_ram_pfn(void)
 {
-	return e820_end_pfn(1UL << (32-PAGE_SHIFT));
+	return e820_end_pfn(1UL << (32 - PAGE_SHIFT), E820_RAM);
 }
 
 static void early_panic(char *msg)

  # cat /sys/kernel/debug/gpio
  gpiochip0: GPIOs 360-511, parent: platform/INT344B:00, INT344B:00:
   gpio-511 (                    |sysfs               ) in  hi
  # rtcwake -s10 -mmem
  <10 seconds passes>
  # cat /sys/kernel/debug/gpio
  gpiochip0: GPIOs 360-511, parent: platform/INT344B:00, INT344B:00:
   gpio-511 (                    |sysfs               ) in  ?
---
 arch/x86/kernel/apic/vector.c |   23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)
@@ -661,11 +661,28 @@ void irq_complete_move(struct irq_cfg *c
  */
 void irq_force_complete_move(struct irq_desc *desc)
 {
-	struct irq_data *irqdata = irq_desc_get_irq_data(desc);
-	struct apic_chip_data *data = apic_chip_data(irqdata);
-	struct irq_cfg *cfg = data ? &data->cfg : NULL;
+	struct irq_data *irqdata;
+	struct apic_chip_data *data;
+	struct irq_cfg *cfg;
 	unsigned int cpu;
 
+	/*
+	 * The function is called for all descriptors regardless of which
+	 * irqdomain they belong to. For example if an IRQ is provided by
+	 * an irq_chip as part of a GPIO driver, the chip data for that
+	 * descriptor is specific to the irq_chip in question.
+	 *
+	 * Check first that the chip_data is what we expect
+	 * (apic_chip_data) before touching it any further.
+	 */
+	irqdata = irq_domain_get_irq_data(x86_vector_domain,
+					  irq_desc_get_irq(desc));
+	if (!irqdata)
+		return;
+
+	data = apic_chip_data(irqdata);
+	cfg = data ? &data->cfg : NULL;
+
 	if (!cfg)
 		return;
 

---
 arch/x86/include/asm/fpu/xstate.h |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)
@@ -24,11 +24,12 @@
 				 XFEATURE_MASK_YMM | \
 				 XFEATURE_MASK_OPMASK | \
 				 XFEATURE_MASK_ZMM_Hi256 | \
-				 XFEATURE_MASK_Hi16_ZMM	 | \
-				 XFEATURE_MASK_PKRU)
+				 XFEATURE_MASK_Hi16_ZMM)
 
 /* Supported features which require eager state saving */
-#define XFEATURE_MASK_EAGER	(XFEATURE_MASK_BNDREGS | XFEATURE_MASK_BNDCSR)
+#define XFEATURE_MASK_EAGER	(XFEATURE_MASK_BNDREGS | \
+				 XFEATURE_MASK_BNDCSR | \
+				 XFEATURE_MASK_PKRU)
 
 /* All currently supported features */
 #define XCNTXT_MASK	(XFEATURE_MASK_LAZY | XFEATURE_MASK_EAGER)

---
 arch/x86/include/asm/mpspec.h   |    2 +-
 arch/x86/kernel/acpi/boot.c     |    2 +-
 arch/x86/kernel/apic/apic.c     |   17 +++++++----------
 arch/x86/kernel/apic/io_apic.c  |    4 ++--
 arch/x86/kernel/apic/probe_32.c |    2 +-
 arch/x86/kernel/smpboot.c       |   10 +++++-----
 6 files changed, 17 insertions(+), 20 deletions(-)
@@ -6,7 +6,6 @@
 #include <asm/x86_init.h>
 #include <asm/apicdef.h>
 
-extern int apic_version[];
 extern int pic_mode;
 
 #ifdef CONFIG_X86_32

@@ -40,6 +39,7 @@ extern int mp_bus_id_to_type[MAX_MP_BUSS
 extern DECLARE_BITMAP(mp_bus_not_pci, MAX_MP_BUSSES);
 
 extern unsigned int boot_cpu_physical_apicid;
+extern u8 boot_cpu_apic_version;
 extern unsigned long mp_lapic_addr;
 
 #ifdef CONFIG_X86_LOCAL_APIC

@@ -180,7 +180,7 @@ static int acpi_register_lapic(int id, u
 	}
 
 	if (boot_cpu_physical_apicid != -1U)
-		ver = apic_version[boot_cpu_physical_apicid];
+		ver = boot_cpu_apic_version;
 
 	return generic_processor_info(id, ver);
 }

@@ -64,6 +64,8 @@ unsigned disabled_cpus;
 unsigned int boot_cpu_physical_apicid = -1U;
 EXPORT_SYMBOL_GPL(boot_cpu_physical_apicid);
 
+u8 boot_cpu_apic_version;
+
 /*
  * The highest APIC ID seen during enumeration.
  */

@@ -1790,8 +1792,7 @@ void __init init_apic_mappings(void)
 		 * since smp_sanity_check is prepared for such a case
 		 * and disable smp mode
 		 */
-		apic_version[new_apicid] =
-			 GET_APIC_VERSION(apic_read(APIC_LVR));
+		boot_cpu_apic_version = GET_APIC_VERSION(apic_read(APIC_LVR));
 	}
 }
 

@@ -1806,13 +1807,10 @@ void __init register_lapic_address(unsig
 	}
 	if (boot_cpu_physical_apicid == -1U) {
 		boot_cpu_physical_apicid  = read_apic_id();
-		apic_version[boot_cpu_physical_apicid] =
-			 GET_APIC_VERSION(apic_read(APIC_LVR));
+		boot_cpu_apic_version = GET_APIC_VERSION(apic_read(APIC_LVR));
 	}
 }
 
-int apic_version[MAX_LOCAL_APIC];
-
 /*
  * Local APIC interrupts
  */

@@ -2102,11 +2100,10 @@ int generic_processor_info(int apicid, i
 			   cpu, apicid);
 		version = 0x10;
 	}
-	apic_version[apicid] = version;
 
-	if (version != apic_version[boot_cpu_physical_apicid]) {
+	if (version != boot_cpu_apic_version) {
 		pr_warning("BIOS bug: APIC version mismatch, boot CPU: %x, CPU %d: version %x\n",
-			apic_version[boot_cpu_physical_apicid], cpu, version);
+			boot_cpu_apic_version, cpu, version);
 	}
 
 	physid_set(apicid, phys_cpu_present_map);

@@ -2249,7 +2246,7 @@ int __init APIC_init_uniprocessor(void)
 	 * Complain if the BIOS pretends there is one.
 	 */
 	if (!boot_cpu_has(X86_FEATURE_APIC) &&
-	    APIC_INTEGRATED(apic_version[boot_cpu_physical_apicid])) {
+	    APIC_INTEGRATED(boot_cpu_apic_version)) {
 		pr_err("BIOS bug, local APIC 0x%x not detected!...\n",
 			boot_cpu_physical_apicid);
 		return -1;

@@ -1592,7 +1592,7 @@ void __init setup_ioapic_ids_from_mpc(vo
 	 * no meaning without the serial APIC bus.
 	 */
 	if (!(boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)
-		|| APIC_XAPIC(apic_version[boot_cpu_physical_apicid]))
+		|| APIC_XAPIC(boot_cpu_apic_version))
 		return;
 	setup_ioapic_ids_from_mpc_nocheck();
 }

@@ -2422,7 +2422,7 @@ static int io_apic_get_unique_id(int ioa
 static u8 io_apic_unique_id(int idx, u8 id)
 {
 	if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) &&
-	    !APIC_XAPIC(apic_version[boot_cpu_physical_apicid]))
+	    !APIC_XAPIC(boot_cpu_apic_version))
 		return io_apic_get_unique_id(idx, id);
 	else
 		return id;

@@ -153,7 +153,7 @@ early_param("apic", parse_apic);
 
 void __init default_setup_apic_routing(void)
 {
-	int version = apic_version[boot_cpu_physical_apicid];
+	int version = boot_cpu_apic_version;
 
 	if (num_possible_cpus() > 8) {
 		switch (boot_cpu_data.x86_vendor) {

@@ -676,7 +676,7 @@ wakeup_secondary_cpu_via_nmi(int apicid,
 	 * Give the other CPU some time to accept the IPI.
 	 */
 	udelay(200);
-	if (APIC_INTEGRATED(apic_version[boot_cpu_physical_apicid])) {
+	if (APIC_INTEGRATED(boot_cpu_apic_version)) {
 		maxlvt = lapic_get_maxlvt();
 		if (maxlvt > 3)			/* Due to the Pentium erratum 3AP.  */
 			apic_write(APIC_ESR, 0);

@@ -703,7 +703,7 @@ wakeup_secondary_cpu_via_init(int phys_a
 	/*
 	 * Be paranoid about clearing APIC errors.
 	 */
-	if (APIC_INTEGRATED(apic_version[phys_apicid])) {
+	if (APIC_INTEGRATED(boot_cpu_apic_version)) {
 		if (maxlvt > 3)		/* Due to the Pentium erratum 3AP.  */
 			apic_write(APIC_ESR, 0);
 		apic_read(APIC_ESR);

@@ -742,7 +742,7 @@ wakeup_secondary_cpu_via_init(int phys_a
 	 * Determine this based on the APIC version.
 	 * If we don't have an integrated APIC, don't send the STARTUP IPIs.
 	 */
-	if (APIC_INTEGRATED(apic_version[phys_apicid]))
+	if (APIC_INTEGRATED(boot_cpu_apic_version))
 		num_starts = 2;
 	else
 		num_starts = 0;

@@ -980,7 +980,7 @@ static int do_boot_cpu(int apicid, int c
 		/*
 		 * Be paranoid about clearing APIC errors.
 		*/
-		if (APIC_INTEGRATED(apic_version[boot_cpu_physical_apicid])) {
+		if (APIC_INTEGRATED(boot_cpu_apic_version)) {
 			apic_write(APIC_ESR, 0);
 			apic_read(APIC_ESR);
 		}

@@ -1235,7 +1235,7 @@ static int __init smp_sanity_check(unsig
 	/*
 	 * If we couldn't find a local APIC, then get out of here now!
 	 */
-	if (APIC_INTEGRATED(apic_version[boot_cpu_physical_apicid]) &&
+	if (APIC_INTEGRATED(boot_cpu_apic_version) &&
 	    !boot_cpu_has(X86_FEATURE_APIC)) {
 		if (!disable_apic) {
 			pr_err("BIOS bug, local APIC #%d not detected!...\n",

---
 arch/x86/kernel/smpboot.c |   18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)
@@ -1393,9 +1393,21 @@ __init void prefill_possible_map(void)
 {
 	int i, possible;
 
-	/* no processor from mptable or madt */
-	if (!num_processors)
-		num_processors = 1;
+	/* No boot processor was found in mptable or ACPI MADT */
+	if (!num_processors) {
+		int apicid = boot_cpu_physical_apicid;
+		int cpu = hard_smp_processor_id();
+
+		pr_warn("Boot CPU (id %d) not listed by BIOS\n", cpu);
+
+		/* Make sure boot cpu is enumerated */
+		if (apic->cpu_present_to_apicid(0) == BAD_APICID &&
+		    apic->apic_id_valid(apicid))
+			generic_processor_info(apicid, boot_cpu_apic_version);
+
+		if (!num_processors)
+			num_processors = 1;
+	}
 
 	i = setup_max_cpus ?: 1;
 	if (setup_possible_cpus == -1) {

---
 arch/x86/kernel/process_64.c |   13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)
@@ -110,12 +110,13 @@ void __show_regs(struct pt_regs *regs, i
 	get_debugreg(d7, 7);
 
 	/* Only print out debug registers if they are in their non-default state. */
-	if ((d0 == 0) && (d1 == 0) && (d2 == 0) && (d3 == 0) &&
-	    (d6 == DR6_RESERVED) && (d7 == 0x400))
-		return;
-
-	printk(KERN_DEFAULT "DR0: %016lx DR1: %016lx DR2: %016lx\n", d0, d1, d2);
-	printk(KERN_DEFAULT "DR3: %016lx DR6: %016lx DR7: %016lx\n", d3, d6, d7);
+	if (!((d0 == 0) && (d1 == 0) && (d2 == 0) && (d3 == 0) &&
+	    (d6 == DR6_RESERVED) && (d7 == 0x400))) {
+		printk(KERN_DEFAULT "DR0: %016lx DR1: %016lx DR2: %016lx\n",
+		       d0, d1, d2);
+		printk(KERN_DEFAULT "DR3: %016lx DR6: %016lx DR7: %016lx\n",
+		       d3, d6, d7);
+	}
 
 	if (boot_cpu_has(X86_FEATURE_OSPKE))
 		printk(KERN_DEFAULT "PKRU: %08x\n", read_pkru());

---
 arch/x86/kernel/ptrace.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
@@ -173,8 +173,8 @@ unsigned long kernel_stack_pointer(struc
 		return sp;
 
 	prev_esp = (u32 *)(context);
-	if (prev_esp)
-		return (unsigned long)prev_esp;
+	if (*prev_esp)
+		return (unsigned long)*prev_esp;
 
 	return (unsigned long)regs;
 }

---
 arch/arm/boot/dts/armada-390.dtsi |    3 +++
 1 file changed, 3 insertions(+)
@@ -47,6 +47,8 @@
 #include "armada-39x.dtsi"
 
 / {
+	compatible = "marvell,armada390";
+
 	soc {
 		internal-regs {
 			pinctrl@18000 {

@@ -54,4 +56,5 @@
 				reg = <0x18000 0x20>;
 			};
 		};
+	};
 };

---
 drivers/cpuidle/cpuidle-arm.c |    1 +
 1 file changed, 1 insertion(+)
@@ -135,6 +135,7 @@ static int __init arm_idle_init(void)
 		dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 		if (!dev) {
 			pr_err("Failed to allocate cpuidle device\n");
+			ret = -ENOMEM;
 			goto out_fail;
 		}
 		dev->cpu = cpu;

---
 security/integrity/ima/ima_appraise.c |    4 ++--
 security/integrity/ima/ima_main.c     |    2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)
@@ -190,7 +190,7 @@ int ima_appraise_measurement(enum ima_ho
 {
 	static const char op[] = "appraise_data";
 	char *cause = "unknown";
-	struct dentry *dentry = file->f_path.dentry;
+	struct dentry *dentry = file_dentry(file);
 	struct inode *inode = d_backing_inode(dentry);
 	enum integrity_status status = INTEGRITY_UNKNOWN;
 	int rc = xattr_len, hash_start = 0;

@@ -295,7 +295,7 @@ out:
  */
 void ima_update_xattr(struct integrity_iint_cache *iint, struct file *file)
 {
-	struct dentry *dentry = file->f_path.dentry;
+	struct dentry *dentry = file_dentry(file);
 	int rc = 0;
 
 	/* do not collect and update hash for digital signatures */

@@ -222,7 +222,7 @@ static int process_measurement(struct fi
 	if ((action & IMA_APPRAISE_SUBMASK) ||
 		    strcmp(template_desc->name, IMA_TEMPLATE_IMA_NAME) != 0)
 		/* read 'security.ima' */
-		xattr_len = ima_read_xattr(file->f_path.dentry, &xattr_value);
+		xattr_len = ima_read_xattr(file_dentry(file), &xattr_value);
 
 	hash_algo = ima_get_hash_algo(xattr_value, xattr_len);
 

---
 drivers/char/tpm/tpm-dev.c       |    2 
 drivers/char/tpm/tpm-interface.c |   51 ++++++++++---------
 drivers/char/tpm/tpm-sysfs.c     |    2 
 drivers/char/tpm/tpm.h           |   12 +++-
 drivers/char/tpm/tpm2-cmd.c      |  101 +++++++++++++++++++++++++--------------
 5 files changed, 103 insertions(+), 65 deletions(-)
@@ -139,7 +139,7 @@ static ssize_t tpm_write(struct file *fi
 
 	/* atomic tpm command send and result receive */
 	out_size = tpm_transmit(priv->chip, priv->data_buffer,
-				sizeof(priv->data_buffer));
+				sizeof(priv->data_buffer), 0);
 	if (out_size < 0) {
 		mutex_unlock(&priv->buffer_mutex);
 		return out_size;

@@ -39,7 +39,7 @@ static ssize_t pubek_show(struct device
 	struct tpm_chip *chip = dev_get_drvdata(dev);
 
 	tpm_cmd.header.in = tpm_readpubek_header;
-	err = tpm_transmit_cmd(chip, &tpm_cmd, READ_PUBEK_RESULT_SIZE,
+	err = tpm_transmit_cmd(chip, &tpm_cmd, READ_PUBEK_RESULT_SIZE, 0,
 			       "attempting to read the PUBEK");
 	if (err)
 		goto out;

@@ -494,11 +494,15 @@ extern struct class *tpm_class;
 extern dev_t tpm_devt;
 extern const struct file_operations tpm_fops;
 
+enum tpm_transmit_flags {
+	TPM_TRANSMIT_UNLOCKED	= BIT(0),
+};
+
+ssize_t tpm_transmit(struct tpm_chip *chip, const u8 *buf, size_t bufsiz,
+		     unsigned int flags);
+ssize_t tpm_transmit_cmd(struct tpm_chip *chip, const void *cmd, int len,
+			 unsigned int flags, const char *desc);
 ssize_t	tpm_getcap(struct device *, __be32, cap_t *, const char *);
-ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf,
-		     size_t bufsiz);
-ssize_t tpm_transmit_cmd(struct tpm_chip *chip, void *cmd, int len,
-			 const char *desc);
 extern int tpm_get_timeouts(struct tpm_chip *);
 extern void tpm_gen_interrupt(struct tpm_chip *);
 extern int tpm_do_selftest(struct tpm_chip *);

---
 drivers/char/tpm/tpm_crb.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
@@ -142,6 +142,11 @@ static int crb_send(struct tpm_chip *chi
 	struct crb_priv *priv = chip->vendor.priv;
 	int rc = 0;
 
+	/* Zero the cancel register so that the next command will not get
+	 * canceled.
+	 */
+	iowrite32(0, &priv->cca->cancel);
+
 	if (len > ioread32(&priv->cca->cmd_size)) {
 		dev_err(&chip->dev,
 			"invalid command count value %x %zx\n",

@@ -175,8 +180,6 @@ static void crb_cancel(struct tpm_chip *
 
 	if ((priv->flags & CRB_FL_ACPI_START) && crb_do_acpi_start(chip))
 		dev_err(&chip->dev, "ACPI Start failed\n");
-
-	iowrite32(0, &priv->cca->cancel);
 }
 
 static bool crb_req_canceled(struct tpm_chip *chip, u8 status)

	kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.7.8-rc1.gz
Shuah Khan
Sr. Linux Kernel Developer
Open Source Innovation Group
Samsung Research America(Silicon Valley)
[email protected]
	total: 149 pass: 149 fail: 0
Qemu test results:
	total: 110 pass: 110 fail: 0

4.7.8-stable review

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Greg Kroah-Hartman

Shuah Khan

Guenter Roeck