linux.git/include/uapi, branch v4.19-rc7

mm/hugetlb: add mmap() encodings for 32MB and 512MB page sizes

2018-10-05T23:32:04+00:00

ARM64 architecture also supports 32MB and 512MB HugeTLB page sizes.  This
just adds mmap() system call argument encoding for them.

Link: http://lkml.kernel.org/r/1537841300-6979-1-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual 
Acked-by: Punit Agrawal 
Acked-by: Mike Kravetz 
Cc: Michal Hocko 
Cc: Will Deacon 
Cc: Catalin Marinas 
Signed-off-by: Andrew Morton 
Signed-off-by: Greg Kroah-Hartman

Revert "uapi/linux/keyctl.h: don't use C++ reserved keyword as a struct member name"

2018-09-25T11:28:58+00:00

This changes UAPI, breaking iwd and libell:

  ell/key.c: In function 'kernel_dh_compute':
  ell/key.c:205:38: error: 'struct keyctl_dh_params' has no member named 'private'; did you mean 'dh_private'?
    struct keyctl_dh_params params = { .private = private,
                                        ^~~~~~~
                                        dh_private

This reverts commit 8a2336e549d385bb0b46880435b411df8d8200e8.

Fixes: 8a2336e549d3 ("uapi/linux/keyctl.h: don't use C++ reserved keyword as a struct member name")
Signed-off-by: Lubomir Rintel 
Signed-off-by: David Howells 
cc: Randy Dunlap 
cc: Mat Martineau 
cc: Stephan Mueller 
cc: James Morris 
cc: "Serge E. Hallyn" 
cc: Mat Martineau 
cc: Andrew Morton 
cc: Linus Torvalds 
cc: 
Signed-off-by: James Morris 
Signed-off-by: Greg Kroah-Hartman

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2018-09-21T14:21:42+00:00

Paolo writes:
  "It's mostly small bugfixes and cleanups, mostly around x86 nested
   virtualization.  One important change, not related to nested
   virtualization, is that the ability for the guest kernel to trap
   CPUID instructions (in Linux that's the ARCH_SET_CPUID arch_prctl) is
   now masked by default.  This is because the feature is detected
   through an MSR; a very bad idea that Intel seems to like more and
   more.  Some applications choke if the other fields of that MSR are
   not initialized as on real hardware, hence we have to disable the
   whole MSR by default, as was the case before Linux 4.12."

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (23 commits)
  KVM: nVMX: Fix bad cleanup on error of get/set nested state IOCTLs
  kvm: selftests: Add platform_info_test
  KVM: x86: Control guest reads of MSR_PLATFORM_INFO
  KVM: x86: Turbo bits in MSR_PLATFORM_INFO
  nVMX x86: Check VPID value on vmentry of L2 guests
  nVMX x86: check posted-interrupt descriptor addresss on vmentry of L2
  KVM: nVMX: Wake blocked vCPU in guest-mode if pending interrupt in virtual APICv
  KVM: VMX: check nested state and CR4.VMXE against SMM
  kvm: x86: make kvm_{load|put}_guest_fpu() static
  x86/hyper-v: rename ipi_arg_{ex,non_ex} structures
  KVM: VMX: use preemption timer to force immediate VMExit
  KVM: VMX: modify preemption timer bit only when arming timer
  KVM: VMX: immediately mark preemption timer expired only for zero value
  KVM: SVM: Switch to bitmap_zalloc()
  KVM/MMU: Fix comment in walk_shadow_page_lockless_end()
  kvm: selftests: use -pthread instead of -lpthread
  KVM: x86: don't reset root in kvm_mmu_setup()
  kvm: mmu: Don't read PDPTEs when paging is not enabled
  x86/kvm/lapic: always disable MMIO interface in x2APIC mode
  KVM: s390: Make huge pages unavailable in ucontrol VMs
  ...

Merge tag 'sound-4.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

2018-09-20T07:50:49+00:00

Takashi writes:
  "sound fixes for 4.19-rc5

   here comes a collection of various fixes, mostly for stable-tree
   or regression fixes.

   Two relatively high LOCs are about the (rather simple) conversion of
   uapi integer types in topology API, and a regression fix about HDMI
   hotplug notification on AMD HD-audio.  The rest are all small
   individual fixes like ASoC Intel Skylake race condition, minor
   uninitialized page leak in emu10k1 ioctl, Firewire audio error paths,
   and so on."

* tag 'sound-4.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (33 commits)
  ALSA: fireworks: fix memory leak of response buffer at error path
  ALSA: oxfw: fix memory leak of discovered stream formats at error path
  ALSA: oxfw: fix memory leak for model-dependent data at error path
  ALSA: bebob: fix memory leak for M-Audio FW1814 and ProjectMix I/O at error path
  ALSA: hda - Enable runtime PM only for discrete GPU
  ALSA: oxfw: fix memory leak of private data
  ALSA: firewire-tascam: fix memory leak of private data
  ALSA: firewire-digi00x: fix memory leak of private data
  sound: don't call skl_init_chip() to reset intel skl soc
  sound: enable interrupt after dma buffer initialization
  Revert "ASoC: Intel: Skylake: Acquire irq after RIRB allocation"
  ALSA: emu10k1: fix possible info leak to userspace on SNDRV_EMU10K1_IOCTL_INFO
  ASoC: cs4265: fix MMTLR Data switch control
  ASoC: AMD: Ensure reset bit is cleared before configuring
  ALSA: fireface: fix memory leak in ff400_switch_fetching_mode()
  ALSA: bebob: use address returned by kmalloc() instead of kernel stack for streaming DMA mapping
  ASoC: rsnd: don't fallback to PIO mode when -EPROBE_DEFER
  ASoC: rsnd: adg: care clock-frequency size
  ASoC: uniphier: change status to orphan
  ASoC: rsnd: fixup not to call clk_get/set under non-atomic
  ...

KVM: x86: Control guest reads of MSR_PLATFORM_INFO

2018-09-19T22:51:46+00:00

Add KVM_CAP_MSR_PLATFORM_INFO so that userspace can disable guest access
to reads of MSR_PLATFORM_INFO.

Disabling access to reads of this MSR gives userspace the control to "expose"
this platform-dependent information to guests in a clear way. As it exists
today, guests that read this MSR would get unpopulated information if userspace
hadn't already set it (and prior to this patch series, only the CPUID faulting
information could have been populated). This existing interface could be
confusing if guests don't handle the potential for incorrect/incomplete
information gracefully (e.g. zero reported for base frequency).

Signed-off-by: Drew Schmitt 
Signed-off-by: Paolo Bonzini

Merge tag 'asoc-v4.19-rc4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

2018-09-17T16:59:21+00:00

ASoC: Fixes for v4.19

This is the usual set of small fixes scatterd around various drivers,
plus one fix for DAPM and a UAPI build fix.  There's not a huge amount
that stands out here relative to anything else.

perf/UAPI: Clearly mark __PERF_SAMPLE_CALLCHAIN_EARLY as internal use

2018-09-10T08:03:02+00:00

Vince noted that commit:

  6cbc304f2f36 ("perf/x86/intel: Fix unwind errors from PEBS entries (mk-II)")

'leaked' __PERF_SAMPLE_CALLCHAIN_EARLY into the UAPI namespace. And
while sys_perf_event_open() will error out if you try to use it, it is
exposed.

Clearly mark it for internal use only to avoid any confusion.

Requested-by: Vince Weaver 
Signed-off-by: Peter Zijlstra (Intel) 
Cc: Linus Torvalds 
Cc: Peter Zijlstra 
Cc: Thomas Gleixner 
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar

Merge branch 'akpm' (patches from Andrew)

2018-09-05T00:01:11+00:00

Merge misc fixes from Andrew Morton:
 "17 fixes"

* emailed patches from Andrew Morton :
  nilfs2: convert to SPDX license tags
  drivers/dax/device.c: convert variable to vm_fault_t type
  lib/Kconfig.debug: fix three typos in help text
  checkpatch: add __ro_after_init to known $Attribute
  mm: fix BUG_ON() in vmf_insert_pfn_pud() from VM_MIXEDMAP removal
  uapi/linux/keyctl.h: don't use C++ reserved keyword as a struct member name
  memory_hotplug: fix kernel_panic on offline page processing
  checkpatch: add optional static const to blank line declarations test
  ipc/shm: properly return EIDRM in shm_lock()
  mm/hugetlb: filter out hugetlb pages if HUGEPAGE migration is not supported.
  mm/util.c: improve kvfree() kerneldoc
  tools/vm/page-types.c: fix "defined but not used" warning
  tools/vm/slabinfo.c: fix sign-compare warning
  kmemleak: always register debugfs file
  mm: respect arch_dup_mmap() return value
  mm, oom: fix missing tlb_finish_mmu() in __oom_reap_task_mm().
  mm: memcontrol: print proper OOM header when no eligible victim left

uapi/linux/keyctl.h: don't use C++ reserved keyword as a struct member name

2018-09-04T23:45:02+00:00

Since this header is in "include/uapi/linux/", apparently people want to
use it in userspace programs -- even in C++ ones.  However, the header
uses a C++ reserved keyword ("private"), so change that to "dh_private"
instead to allow the header file to be used in C++ userspace.

Fixes https://bugzilla.kernel.org/show_bug.cgi?id=191051
Link: http://lkml.kernel.org/r/0db6c314-1ef4-9bfa-1baa-7214dd2ee061@infradead.org
Fixes: ddbb41148724 ("KEYS: Add KEYCTL_DH_COMPUTE command")
Signed-off-by: Randy Dunlap 
Reviewed-by: Andrew Morton 
Cc: David Howells 
Cc: James Morris 
Cc: "Serge E. Hallyn" 
Cc: Mat Martineau 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

vhost: fix VHOST_GET_BACKEND_FEATURES ioctl request definition

2018-09-04T04:23:24+00:00

The _IOC_READ flag fits this ioctl request more because this request
actually only writes to, but doesn't read from userspace.
See NOTEs in include/uapi/asm-generic/ioctl.h for more information.

Fixes: 429711aec282 ("vhost: switch to use new message format")
Signed-off-by: Gleb Fotengauer-Malinovskiy 
Acked-by: Jason Wang 
Acked-by: Michael S. Tsirkin 
Signed-off-by: David S. Miller