Merge android-4.4.112 (5f6325b) into msm-4.4

* refs/heads/tmp-5f6325b
  Linux 4.4.112
  selftests/x86: Add test_vsyscall
  x86/alternatives: Add missing '\n' at end of ALTERNATIVE inline asm
  x86/alternatives: Fix optimize_nops() checking
  sysfs/cpu: Fix typos in vulnerability documentation
  x86/cpu: Implement CPU vulnerabilites sysfs functions
  sysfs/cpu: Add vulnerability folder
  x86/cpu: Merge bugs.c and bugs_64.c
  x86/cpufeatures: Add X86_BUG_SPECTRE_V[12]
  x86/pti: Rename BUG_CPU_INSECURE to BUG_CPU_MELTDOWN
  x86/cpufeatures: Add X86_BUG_CPU_INSECURE
  x86/cpufeatures: Make CPU bugs sticky
  x86/cpu: Factor out application of forced CPU caps
  x86/Documentation: Add PTI description
  e1000e: Fix e1000_check_for_copper_link_ich8lan return value.
  uas: ignore UAS for Norelsys NS1068(X) chips
  Bluetooth: Prevent stack info leak from the EFS element.
  staging: android: ashmem: fix a race condition in ASHMEM_SET_SIZE ioctl
  usbip: remove kernel addresses from usb device and urb debug msgs
  USB: fix usbmon BUG trigger
  usb: misc: usb3503: make sure reset is low for at least 100us
  USB: serial: cp210x: add new device ID ELV ALC 8xxx
  USB: serial: cp210x: add IDs for LifeScan OneTouch Verio IQ
  target: Avoid early CMD_T_PRE_EXECUTE failures during ABORT_TASK
  iscsi-target: Make TASK_REASSIGN use proper se_cmd->cmd_kref
  bpf, array: fix overflow in max_entries and undefined behavior in index_mask
  bpf: prevent out-of-bounds speculation
  bpf: adjust insn_aux_data when patching insns
  bpf: refactor fixup_bpf_calls()
  bpf: move fixup_bpf_calls() function
  bpf: don't (ab)use instructions to store state
  bpf: add bpf_patch_insn_single helper
  kaiser: Set _PAGE_NX only if supported
  drm/vmwgfx: Potential off by one in vmw_view_add()
  KVM: x86: Add memory barrier on vmcs field lookup
  x86/microcode/intel: Extend BDW late-loading with a revision check
  rbd: set max_segments to USHRT_MAX
  crypto: algapi - fix NULL dereference in crypto_remove_spawns()
  ipv6: fix possible mem leaks in ipv6_make_skb()
  net: stmmac: enable EEE in MII, GMII or RGMII only
  sh_eth: fix SH7757 GEther initialization
  sh_eth: fix TSU resource handling
  RDS: null pointer dereference in rds_atomic_free_op
  RDS: Heap OOB write in rds_message_alloc_sgs()
  net: core: fix module type in sock_diag_bind
  ip6_tunnel: disable dst caching if tunnel is dual-stack
  8021q: fix a memory leak for VLAN 0 device
  x86/pti/efi: broken conversion from efi to kernel page table
  Revert "userfaultfd: selftest: vm: allow to build in vm/ directory"
  xhci: Fix ring leak in failure path of xhci_alloc_virt_device()
  sysrq: Fix warning in sysrq generated crash.
  hwrng: core - sleep interruptible in read
  x86/mm/pat, /dev/mem: Remove superfluous error message
  cx82310_eth: use skb_cow_head() to deal with cloned skbs
  smsc75xx: use skb_cow_head() to deal with cloned skbs
  sr9700: use skb_cow_head() to deal with cloned skbs
  lan78xx: use skb_cow_head() to deal with cloned skbs
  r8152: adjust ALDPS function
  r8152: use test_and_clear_bit
  r8152: fix the wake event
  usb: musb: ux500: Fix NULL pointer dereference at system PM
  usbvision fix overflow of interfaces array
  locking/mutex: Allow next waiter lockless wakeup
  futex: Replace barrier() in unqueue_me() with READ_ONCE()
  locks: don't check for race with close when setting OFD lock
  zswap: don't param_set_charp while holding spinlock
  mm/zswap: use workqueue to destroy pool
  mm/page-writeback: fix dirty_ratelimit calculation
  mm/compaction: pass only pageblock aligned range to pageblock_pfn_to_page
  mm/compaction: fix invalid free_pfn and compact_cached_free_pfn
  x86/acpi: Reduce code duplication in mp_override_legacy_irq()
  ALSA: aloop: Fix racy hw constraints adjustment
  ALSA: aloop: Fix inconsistent format due to incomplete rule
  ALSA: aloop: Release cable upon open error path
  ALSA: pcm: Allow aborting mutex lock at OSS read/write loops
  ALSA: pcm: Abort properly at pending signal in OSS read/write loops
  ALSA: pcm: Add missing error checks in OSS emulation plugin builder
  ALSA: pcm: Remove incorrect snd_BUG_ON() usages
  iommu/arm-smmu-v3: Don't free page table ops twice
  x86/acpi: Handle SCI interrupts above legacy space gracefully
  x86/vsdo: Fix build on PARAVIRT_CLOCK=y, KVM_GUEST=n
  kvm: vmx: Scrub hardware GPRs at VM-exit
  net/mac80211/debugfs.c: prevent build failure with CONFIG_UBSAN=y
  MIPS: Disallow outsized PTRACE_SETREGSET NT_PRFPREG regset accesses
  MIPS: Also verify sizeof `elf_fpreg_t' with PTRACE_SETREGSET
  MIPS: Fix an FCSR access API regression with NT_PRFPREG and MSA
  MIPS: Consistently handle buffer counter with PTRACE_SETREGSET
  MIPS: Guard against any partial write attempt with PTRACE_SETREGSET
  MIPS: Factor out NT_PRFPREG regset access helpers
  MIPS: Validate PR_SET_FP_MODE prctl(2) requests against the ABI of the task
  IB/srpt: Disable RDMA access by the initiator
  can: gs_usb: fix return value of the "set_bittiming" callback
  KVM: Fix stack-out-of-bounds read in write_mmio
  dm bufio: fix shrinker scans when (nr_to_scan < retain_target)
  fscrypt: updates on 4.15-rc4
  ANDROID: uid_sys_stats: fix the comment
  BACKPORT: optee: fix invalid of_node_put() in optee_driver_init()
  BACKPORT: tee: optee: sync with new naming of interrupts
  BACKPORT: tee: indicate privileged dev in gen_caps
  BACKPORT: tee: optee: interruptible RPC sleep
  BACKPORT: tee: optee: add const to tee_driver_ops and tee_desc structures
  BACKPORT: tee: tee_shm: Constify dma_buf_ops structures.
  BACKPORT: tee: add forward declaration for struct device
  BACKPORT: tee: optee: fix uninitialized symbol 'parg'
  BACKPORT: tee.txt: standardize document format
  BACKPORT: tee: add ARM_SMCCC dependency
  BACKPORT: selinux: nlmsgtab: add SOCK_DESTROY to the netlink mapping tables

Conflicts:
	security/selinux/nlmsgtab.c

Change-Id: I5770a565f39c321f2305f8228e41f822e3cd0625
Signed-off-by: Srinivasarao P <spathi@codeaurora.org>

2 files changed, 51 insertions, 0 deletions

diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index 98504ec99c7d..59992788966c 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -223,6 +223,9 @@ config GENERIC_CPU_DEVICES
 config GENERIC_CPU_AUTOPROBE
 	bool
 
+config GENERIC_CPU_VULNERABILITIES
+	bool
+
 config SOC_BUS
 	bool
 
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 51a08995442d..cb5c54e258eb 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -673,10 +673,58 @@ static void __init cpu_dev_register_generic(void)
 #endif
 }
 
+#ifdef CONFIG_GENERIC_CPU_VULNERABILITIES
+
+ssize_t __weak cpu_show_meltdown(struct device *dev,
+				 struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "Not affected\n");
+}
+
+ssize_t __weak cpu_show_spectre_v1(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "Not affected\n");
+}
+
+ssize_t __weak cpu_show_spectre_v2(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "Not affected\n");
+}
+
+static DEVICE_ATTR(meltdown, 0444, cpu_show_meltdown, NULL);
+static DEVICE_ATTR(spectre_v1, 0444, cpu_show_spectre_v1, NULL);
+static DEVICE_ATTR(spectre_v2, 0444, cpu_show_spectre_v2, NULL);
+
+static struct attribute *cpu_root_vulnerabilities_attrs[] = {
+	&dev_attr_meltdown.attr,
+	&dev_attr_spectre_v1.attr,
+	&dev_attr_spectre_v2.attr,
+	NULL
+};
+
+static const struct attribute_group cpu_root_vulnerabilities_group = {
+	.name  = "vulnerabilities",
+	.attrs = cpu_root_vulnerabilities_attrs,
+};
+
+static void __init cpu_register_vulnerabilities(void)
+{
+	if (sysfs_create_group(&cpu_subsys.dev_root->kobj,
+			       &cpu_root_vulnerabilities_group))
+		pr_err("Unable to register CPU vulnerabilities\n");
+}
+
+#else
+static inline void cpu_register_vulnerabilities(void) { }
+#endif
+
 void __init cpu_dev_init(void)
 {
 	if (subsys_system_register(&cpu_subsys, cpu_root_attr_groups))
 		panic("Failed to register CPU subsystem");
 
 	cpu_dev_register_generic();
+	cpu_register_vulnerabilities();
 }