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Groups > linux.kernel > #1377182 > unrolled thread

[3.19.y-ckt stable] Linux 3.19.8-ckt19 stable review

Started byKamal Mostafa <kamal@canonical.com>
First post2016-04-12 23:00 +0200
Last post2016-04-12 23:30 +0200
Articles 20 on this page of 57 — 1 participant

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Contents

  [3.19.y-ckt stable] Linux 3.19.8-ckt19 stable review Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:00 +0200
    [PATCH 3.19.y-ckt 04/56] ALSA: hda - Fix white noise on Asus N750JV headphone Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:00 +0200
    [PATCH 3.19.y-ckt 01/56] [stable-only] Revert "spi: rockchip: modify DMA max burst to 1" Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:00 +0200
    [PATCH 3.19.y-ckt 10/56] pinctrl: sh-pfc: only use dummy states for non-DT platforms Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:00 +0200
    [PATCH 3.19.y-ckt 47/56] efi: Make our variable validation list include the guid Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 55/56] mwifiex: fix corner case association failure Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 53/56] perf/x86/intel: Fix PEBS data source interpretation on Nehalem/Westmere Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 42/56] Drivers: hv: vmbus: prevent cpu offlining on newer hypervisors Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 50/56] lib/ucs2_string: Correct ucs2 -> utf8 conversion Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 40/56] pinctrl: nomadik: fix pull debug print inversion Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 54/56] ALSA: hda - Add new GPU codec ID 0x10de0082 to snd-hda Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 27/56] ALSA: usb-audio: Minor code cleanup in create_fixed_stream_quirk() Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 15/56] USB: digi_acceleport: do sanity checking for the number of ports Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 44/56] lib/ucs2_string: Add ucs2 -> utf8 helper functions Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 51/56] ipr: Fix out-of-bounds null overwrite Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 43/56] KVM: x86: move steal time initialization to vcpu entry time Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 30/56] drm/dp: move hw_mutex up the call stack Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 49/56] efi: Add pstore variables to the deletion whitelist Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 45/56] efi: Use ucs2_as_utf8 in efivarfs instead of open coding a bad version Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 41/56] ipv6: udp: fix UDP_MIB_IGNOREDMULTI updates Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 14/56] USB: cypress_m8: add endpoint sanity check Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 52/56] ipr: Fix regression when loading firmware Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 48/56] efi: Make efivarfs entries immutable by default Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 56/56] net: phy: at803x: Request 'reset' GPIO only for AT8030 PHY Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 46/56] efi: Do variable name validation tests in utf8 Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 38/56] ip6_tunnel: set rtnl_link_ops before calling register_netdevice Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 28/56] ALSA: usb-audio: Fix double-free in error paths after snd_usb_add_audio_stream() call Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:10 +0200
    [PATCH 3.19.y-ckt 12/56] usb: renesas_usbhs: disable TX IRQ before starting TX DMAC transfer Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 16/56] ext4: add lockdep annotations for i_data_sem Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 25/56] parisc: Avoid function pointers for kernel exception routines Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 18/56] mm: fix invalid node in alloc_migrate_target() Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 19/56] iio: st_magn: always define ST_MAGN_TRIGGER_SET_STATE Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 35/56] gpio: pca953x: Use correct u16 value for register word write Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 23/56] USB: serial: cp210x: Adding GE Healthcare Device ID Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 22/56] USB: serial: ftdi_sio: Add support for ICP DAS I-756xU devices Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 34/56] ext4: ignore quota mount options if the quota feature is enabled Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 13/56] USB: mct_u232: add sanity checking in probe Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 29/56] sd: Fix excessive capacity printing on devices with blocks bigger than 512 bytes Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 20/56] xen/events: Mask a moving irq Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 17/56] ALSA: timer: Use mod_timer() for rearming the system timer Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 26/56] drm/radeon: add a dpm quirk for all R7 370 parts Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 37/56] parisc: Unbreak handling exceptions from kernel modules Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 32/56] ALSA: hda - fix front mic problem for a HP desktop Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 39/56] net: bcmgenet: fix skb_len in bcmgenet_xmit_single() Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 09/56] powerpc/mm: Fixup preempt underflow with huge pages Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 33/56] KVM: x86: Inject pending interrupt even if pending nmi exist Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 21/56] rbd: use GFP_NOIO consistently for request allocations Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 24/56] USB: option: add "D-Link DWM-221 B1" device id Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 31/56] drm/udl: Use unlocked gem unreferencing Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 36/56] parisc: Fix kernel crash with reversed copy_from_user() Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 11/56] usb: renesas_usbhs: avoid NULL pointer derefernce in usbhsf_pkt_handler() Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:20 +0200
    [PATCH 3.19.y-ckt 05/56] ALSA: hda - Apply fix for white noise on Asus N550JV, too Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:30 +0200
    [PATCH 3.19.y-ckt 07/56] hwmon: (max1111) Return -ENODEV from max1111_read_channel if not instantiated Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:30 +0200
    [PATCH 3.19.y-ckt 02/56] PKCS#7: pkcs7_validate_trust(): initialize the _trusted output argument Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:30 +0200
    [PATCH 3.19.y-ckt 08/56] drm/radeon: add another R7 370 quirk Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:30 +0200
    [PATCH 3.19.y-ckt 06/56] drm/radeon: add a dpm quirk for sapphire Dual-X R7 370 2G D5 Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:30 +0200
    [PATCH 3.19.y-ckt 03/56] ALSA: hda - Asus N750JV external subwoofer fixup Kamal Mostafa <kamal@canonical.com> - 2016-04-12 23:30 +0200

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#1377182 — [3.19.y-ckt stable] Linux 3.19.8-ckt19 stable review

FromKamal Mostafa <kamal@canonical.com>
Date2016-04-12 23:00 +0200
Subject[3.19.y-ckt stable] Linux 3.19.8-ckt19 stable review
Message-ID<rndzI-5be-21@gated-at.bofh.it>
This is the start of the review cycle for the Linux 3.19.8-ckt19 stable
kernel.

This version contains 56 new patches, summarized below.  The new patches
are posted as replies to this message and also available in this git branch:

http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.19.y-review

git://kernel.ubuntu.com/ubuntu/linux.git  linux-3.19.y-review

The review period for version 3.19.8-ckt19 will be open for the next three
days.  To report a problem, please reply to the relevant follow-up patch
message.

For more information about the Linux 3.19.y-ckt extended stable kernel
series, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable .

 -Kamal

--
 Documentation/filesystems/efivarfs.txt         |   7 ++
 arch/parisc/include/asm/uaccess.h              |   1 +
 arch/parisc/kernel/asm-offsets.c               |   1 +
 arch/parisc/kernel/parisc_ksyms.c              |  10 +-
 arch/parisc/kernel/traps.c                     |   3 +
 arch/parisc/lib/fixup.S                        |   6 ++
 arch/parisc/mm/fault.c                         |   1 +
 arch/powerpc/mm/hugetlbpage.c                  |   4 +-
 arch/x86/kernel/cpu/perf_event.h               |   2 +
 arch/x86/kernel/cpu/perf_event_intel.c         |   2 +
 arch/x86/kernel/cpu/perf_event_intel_ds.c      |  11 +-
 arch/x86/kvm/x86.c                             |  29 +++--
 crypto/asymmetric_keys/pkcs7_trust.c           |   2 +
 drivers/block/rbd.c                            |   6 +-
 drivers/firmware/efi/efivars.c                 |  33 +++---
 drivers/firmware/efi/vars.c                    | 144 ++++++++++++++++++-------
 drivers/gpio/gpio-pca953x.c                    |   3 +-
 drivers/gpu/drm/drm_dp_helper.c                |  27 +++--
 drivers/gpu/drm/radeon/si_dpm.c                |   6 ++
 drivers/gpu/drm/udl/udl_fb.c                   |   2 +-
 drivers/gpu/drm/udl/udl_gem.c                  |   2 +-
 drivers/hv/vmbus_drv.c                         |  36 +++++++
 drivers/hwmon/max1111.c                        |   6 ++
 drivers/iio/magnetometer/st_magn.h             |   1 +
 drivers/net/ethernet/broadcom/genet/bcmgenet.c |   2 +-
 drivers/net/phy/at803x.c                       |   4 +
 drivers/net/wireless/mwifiex/sta_ioctl.c       |   1 +
 drivers/pinctrl/nomadik/pinctrl-nomadik.c      |   2 +-
 drivers/pinctrl/sh-pfc/core.c                  |   4 +-
 drivers/scsi/ipr.c                             |  10 +-
 drivers/scsi/sd.c                              |  23 ++--
 drivers/scsi/sd.h                              |   7 +-
 drivers/spi/spi-rockchip.c                     |  12 +--
 drivers/usb/renesas_usbhs/fifo.c               |   4 +-
 drivers/usb/serial/cp210x.c                    |   1 +
 drivers/usb/serial/cypress_m8.c                |  11 +-
 drivers/usb/serial/digi_acceleport.c           |  19 ++++
 drivers/usb/serial/ftdi_sio.c                  |   4 +
 drivers/usb/serial/ftdi_sio_ids.h              |   8 ++
 drivers/usb/serial/mct_u232.c                  |   9 +-
 drivers/usb/serial/option.c                    |   2 +
 drivers/xen/events/events_base.c               |  28 ++++-
 fs/efivarfs/file.c                             |  70 ++++++++++++
 fs/efivarfs/inode.c                            |  30 ++++--
 fs/efivarfs/internal.h                         |   3 +-
 fs/efivarfs/super.c                            |  16 +--
 fs/ext4/ext4.h                                 |  23 ++++
 fs/ext4/move_extent.c                          |  11 +-
 fs/ext4/super.c                                |  47 +++++---
 include/linux/efi.h                            |   5 +-
 include/linux/ucs2_string.h                    |   4 +
 lib/ucs2_string.c                              |  62 +++++++++++
 mm/page_isolation.c                            |   8 +-
 net/ipv6/ip6_tunnel.c                          |   2 +-
 net/ipv6/udp.c                                 |   4 +-
 sound/core/timer.c                             |   4 +-
 sound/pci/hda/patch_hdmi.c                     |   1 +
 sound/pci/hda/patch_realtek.c                  |  19 +++-
 sound/usb/quirks.c                             |  26 +++--
 sound/usb/stream.c                             |   6 +-
 tools/testing/selftests/efivarfs/efivarfs.sh   |  19 +++-
 tools/testing/selftests/efivarfs/open-unlink.c |  72 ++++++++++++-
 62 files changed, 724 insertions(+), 204 deletions(-)

Aaron Plattner (1):
      ALSA: hda - Add new GPU codec ID 0x10de0082 to snd-hda

Alex Deucher (3):
      drm/radeon: add a dpm quirk for sapphire Dual-X R7 370 2G D5
      drm/radeon: add another R7 370 quirk
      drm/radeon: add a dpm quirk for all R7 370 parts

Amitkumar Karwar (1):
      mwifiex: fix corner case association failure

Andi Kleen (1):
      perf/x86/intel: Fix PEBS data source interpretation on Nehalem/Westmere

Arnd Bergmann (1):
      iio: st_magn: always define ST_MAGN_TRIGGER_SET_STATE

Bjørn Mork (1):
      USB: option: add "D-Link DWM-221 B1" device id

Bobi Mihalca (3):
      ALSA: hda - Asus N750JV external subwoofer fixup
      ALSA: hda - Fix white noise on Asus N750JV headphone
      ALSA: hda - Apply fix for white noise on Asus N550JV, too

Boris Ostrovsky (1):
      xen/events: Mask a moving irq

Daniel Vetter (1):
      drm/udl: Use unlocked gem unreferencing

David Disseldorp (1):
      rbd: use GFP_NOIO consistently for request allocations

Eric Dumazet (1):
      ipv6: udp: fix UDP_MIB_IGNOREDMULTI updates

Gabriel Krisman Bertazi (1):
      ipr: Fix regression when loading firmware

Guenter Roeck (1):
      hwmon: (max1111) Return -ENODEV from max1111_read_channel if not instantiated

Helge Deller (3):
      parisc: Avoid function pointers for kernel exception routines
      parisc: Fix kernel crash with reversed copy_from_user()
      parisc: Unbreak handling exceptions from kernel modules

Hui Wang (1):
      ALSA: hda - fix front mic problem for a HP desktop

Insu Yun (1):
      ipr: Fix out-of-bounds null overwrite

Jason Andryuk (1):
      lib/ucs2_string: Correct ucs2 -> utf8 conversion

Josh Boyer (1):
      USB: serial: ftdi_sio: Add support for ICP DAS I-756xU devices

Kamal Mostafa (1):
      [stable-only] Revert "spi: rockchip: modify DMA max burst to 1"

Linus Walleij (1):
      pinctrl: nomadik: fix pull debug print inversion

Marcelo Tosatti (1):
      KVM: x86: move steal time initialization to vcpu entry time

Martin K. Petersen (1):
      sd: Fix excessive capacity printing on devices with blocks bigger than 512 bytes

Martyn Welch (1):
      USB: serial: cp210x: Adding GE Healthcare Device ID

Matt Fleming (1):
      efi: Add pstore variables to the deletion whitelist

Nicolai Stange (1):
      PKCS#7: pkcs7_validate_trust(): initialize the _trusted output argument

Oliver Neukum (3):
      USB: mct_u232: add sanity checking in probe
      USB: cypress_m8: add endpoint sanity check
      USB: digi_acceleport: do sanity checking for the number of ports

Peter Jones (5):
      lib/ucs2_string: Add ucs2 -> utf8 helper functions
      efi: Use ucs2_as_utf8 in efivarfs instead of open coding a bad version
      efi: Do variable name validation tests in utf8
      efi: Make our variable validation list include the guid
      efi: Make efivarfs entries immutable by default

Petri Gynther (1):
      net: bcmgenet: fix skb_len in bcmgenet_xmit_single()

Rob Clark (1):
      drm/dp: move hw_mutex up the call stack

Sebastian Frias (1):
      net: phy: at803x: Request 'reset' GPIO only for AT8030 PHY

Sebastian Siewior (1):
      powerpc/mm: Fixup preempt underflow with huge pages

Takashi Iwai (2):
      ALSA: timer: Use mod_timer() for rearming the system timer
      ALSA: usb-audio: Minor code cleanup in create_fixed_stream_quirk()

Thadeu Lima de Souza Cascardo (1):
      ip6_tunnel: set rtnl_link_ops before calling register_netdevice

Theodore Ts'o (2):
      ext4: add lockdep annotations for i_data_sem
      ext4: ignore quota mount options if the quota feature is enabled

Vitaly Kuznetsov (1):
      Drivers: hv: vmbus: prevent cpu offlining on newer hypervisors

Vladis Dronov (1):
      ALSA: usb-audio: Fix double-free in error paths after snd_usb_add_audio_stream() call

Wolfram Sang (1):
      pinctrl: sh-pfc: only use dummy states for non-DT platforms

Xishi Qiu (1):
      mm: fix invalid node in alloc_migrate_target()

Yong Li (1):
      gpio: pca953x: Use correct u16 value for register word write

Yoshihiro Shimoda (2):
      usb: renesas_usbhs: avoid NULL pointer derefernce in usbhsf_pkt_handler()
      usb: renesas_usbhs: disable TX IRQ before starting TX DMAC transfer

Yuki Shibuya (1):
      KVM: x86: Inject pending interrupt even if pending nmi exist

[toc] | [next] | [standalone]

#1377201 — [PATCH 3.19.y-ckt 04/56] ALSA: hda - Fix white noise on Asus N750JV headphone

FromKamal Mostafa <kamal@canonical.com>
Date2016-04-12 23:00 +0200
Subject[PATCH 3.19.y-ckt 04/56] ALSA: hda - Fix white noise on Asus N750JV headphone
Message-ID<rndzJ-5be-45@gated-at.bofh.it>
In reply to#1377182
3.19.8-ckt19 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Bobi Mihalca <bobbymihalca@touchtech.ro>

commit 9d4dc5840f93bcb002fa311693349deae7702bc5 upstream.

For reducing the noise from the headphone output on ASUS N750JV,
call the existing fixup, alc_fixup_auto_mute_via_amp(), additionally.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=115181
Signed-off-by: Bobi Mihalca <bobbymihalca@touchtech.ro>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 sound/pci/hda/patch_realtek.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 4bb2974..c1764f2 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -6027,6 +6027,7 @@ enum {
 	ALC668_FIXUP_AUTO_MUTE,
 	ALC668_FIXUP_DELL_DISABLE_AAMIX,
 	ALC668_FIXUP_DELL_XPS13,
+	ALC662_FIXUP_ASUS_Nx50,
 };
 
 static const struct hda_fixup alc662_fixups[] = {
@@ -6253,6 +6254,12 @@ static const struct hda_fixup alc662_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc_fixup_bass_chmap,
 	},
+	[ALC662_FIXUP_ASUS_Nx50] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc_fixup_auto_mute_via_amp,
+		.chained = true,
+		.chain_id = ALC662_FIXUP_BASS_1A
+	},
 };
 
 static const struct snd_pci_quirk alc662_fixup_tbl[] = {
@@ -6276,7 +6283,7 @@ static const struct snd_pci_quirk alc662_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x103c, 0x1632, "HP RP5800", ALC662_FIXUP_HP_RP5800),
 	SND_PCI_QUIRK(0x1043, 0x11cd, "Asus N550", ALC662_FIXUP_BASS_1A),
 	SND_PCI_QUIRK(0x1043, 0x13df, "Asus N550JX", ALC662_FIXUP_BASS_1A),
-	SND_PCI_QUIRK(0x1043, 0x129d, "Asus N750", ALC662_FIXUP_BASS_1A),
+	SND_PCI_QUIRK(0x1043, 0x129d, "Asus N750", ALC662_FIXUP_ASUS_Nx50),
 	SND_PCI_QUIRK(0x1043, 0x1477, "ASUS N56VZ", ALC662_FIXUP_BASS_MODE4_CHMAP),
 	SND_PCI_QUIRK(0x1043, 0x15a7, "ASUS UX51VZH", ALC662_FIXUP_BASS_16),
 	SND_PCI_QUIRK(0x1043, 0x1b73, "ASUS N55SF", ALC662_FIXUP_BASS_16),
-- 
2.7.4

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#1377206 — [PATCH 3.19.y-ckt 01/56] [stable-only] Revert "spi: rockchip: modify DMA max burst to 1"

FromKamal Mostafa <kamal@canonical.com>
Date2016-04-12 23:00 +0200
Subject[PATCH 3.19.y-ckt 01/56] [stable-only] Revert "spi: rockchip: modify DMA max burst to 1"
Message-ID<rndzK-5be-73@gated-at.bofh.it>
In reply to#1377182
3.19.8-ckt19 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Kamal Mostafa <kamal@canonical.com>

This reverts commit 6f7cc98b61d201f803dce0d4113462c4e10ae698.

Not suitable for 3.19: no max_burst.

Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/spi/spi-rockchip.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index 4f01f89..7e4d740 100644
--- a/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@ -198,7 +198,6 @@ struct rockchip_spi {
 	struct sg_table rx_sg;
 	struct rockchip_spi_dma_data dma_rx;
 	struct rockchip_spi_dma_data dma_tx;
-	struct dma_slave_caps dma_caps;
 };
 
 static inline void spi_enable_chip(struct rockchip_spi *rs, int enable)
@@ -447,10 +446,7 @@ static void rockchip_spi_prepare_dma(struct rockchip_spi *rs)
 		rxconf.direction = rs->dma_rx.direction;
 		rxconf.src_addr = rs->dma_rx.addr;
 		rxconf.src_addr_width = rs->n_bytes;
-		if (rs->dma_caps.max_burst > 4)
-			rxconf.src_maxburst = 4;
-		else
-			rxconf.src_maxburst = 1;
+		rxconf.src_maxburst = rs->n_bytes;
 		dmaengine_slave_config(rs->dma_rx.ch, &rxconf);
 
 		rxdesc = dmaengine_prep_slave_sg(
@@ -466,10 +462,7 @@ static void rockchip_spi_prepare_dma(struct rockchip_spi *rs)
 		txconf.direction = rs->dma_tx.direction;
 		txconf.dst_addr = rs->dma_tx.addr;
 		txconf.dst_addr_width = rs->n_bytes;
-		if (rs->dma_caps.max_burst > 4)
-			txconf.dst_maxburst = 4;
-		else
-			txconf.dst_maxburst = 1;
+		txconf.dst_maxburst = rs->n_bytes;
 		dmaengine_slave_config(rs->dma_tx.ch, &txconf);
 
 		txdesc = dmaengine_prep_slave_sg(
@@ -713,7 +706,6 @@ static int rockchip_spi_probe(struct platform_device *pdev)
 	}
 
 	if (rs->dma_tx.ch && rs->dma_rx.ch) {
-		dma_get_slave_caps(rs->dma_rx.ch, &(rs->dma_caps));
 		rs->dma_tx.addr = (dma_addr_t)(mem->start + ROCKCHIP_SPI_TXDR);
 		rs->dma_rx.addr = (dma_addr_t)(mem->start + ROCKCHIP_SPI_RXDR);
 		rs->dma_tx.direction = DMA_MEM_TO_DEV;
-- 
2.7.4

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#1377208 — [PATCH 3.19.y-ckt 10/56] pinctrl: sh-pfc: only use dummy states for non-DT platforms

FromKamal Mostafa <kamal@canonical.com>
Date2016-04-12 23:00 +0200
Subject[PATCH 3.19.y-ckt 10/56] pinctrl: sh-pfc: only use dummy states for non-DT platforms
Message-ID<rndzK-5be-77@gated-at.bofh.it>
In reply to#1377182
3.19.8-ckt19 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Wolfram Sang <wsa+renesas@sang-engineering.com>

commit 0129801be4b87226bf502f18f5a9eabd356d1058 upstream.

If pinctrl_provide_dummies() is used unconditionally, then the dummy
state will be used even on DT platforms when the "init" state was
intentionally left out. Instead of "default", the dummy "init" state
will then be used during probe. Thus, when probing an I2C controller on
cold boot, communication triggered by bus notifiers broke because the
pins were not initialized.

Do it like OMAP2: use the dummy state only for non-DT platforms.

Fixes: ef0eebc05130 ("drivers/pinctrl: Add the concept of an "init" state")
Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/pinctrl/sh-pfc/core.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/sh-pfc/core.c b/drivers/pinctrl/sh-pfc/core.c
index 66dc62d..741e3ea 100644
--- a/drivers/pinctrl/sh-pfc/core.c
+++ b/drivers/pinctrl/sh-pfc/core.c
@@ -531,7 +531,9 @@ static int sh_pfc_probe(struct platform_device *pdev)
 			return ret;
 	}
 
-	pinctrl_provide_dummies();
+	/* Enable dummy states for those platforms without pinctrl support */
+	if (!of_have_populated_dt())
+		pinctrl_provide_dummies();
 
 	ret = sh_pfc_init_ranges(pfc);
 	if (ret < 0)
-- 
2.7.4

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#1377214 — [PATCH 3.19.y-ckt 47/56] efi: Make our variable validation list include the guid

FromKamal Mostafa <kamal@canonical.com>
Date2016-04-12 23:10 +0200
Subject[PATCH 3.19.y-ckt 47/56] efi: Make our variable validation list include the guid
Message-ID<rndJn-5Cv-5@gated-at.bofh.it>
In reply to#1377182
3.19.8-ckt19 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Peter Jones <pjones@redhat.com>

commit 8282f5d9c17fe15a9e658c06e3f343efae1a2a2f upstream.

All the variables in this list so far are defined to be in the global
namespace in the UEFI spec, so this just further ensures we're
validating the variables we think we are.

Including the guid for entries will become more important in future
patches when we decide whether or not to allow deletion of variables
based on presence in this list.

Signed-off-by: Peter Jones <pjones@redhat.com>
Tested-by: Lee, Chun-Yi <jlee@suse.com>
Acked-by: Matthew Garrett <mjg59@coreos.com>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/firmware/efi/efivars.c |  5 ++--
 drivers/firmware/efi/vars.c    | 52 +++++++++++++++++++++++++++---------------
 include/linux/efi.h            |  3 ++-
 3 files changed, 38 insertions(+), 22 deletions(-)

diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c
index 6d27c33..8d8af8d 100644
--- a/drivers/firmware/efi/efivars.c
+++ b/drivers/firmware/efi/efivars.c
@@ -221,7 +221,7 @@ sanity_check(struct efi_variable *var, efi_char16_t *name, efi_guid_t vendor,
 	}
 
 	if ((attributes & ~EFI_VARIABLE_MASK) != 0 ||
-	    efivar_validate(name, data, size) == false) {
+	    efivar_validate(vendor, name, data, size) == false) {
 		printk(KERN_ERR "efivars: Malformed variable content\n");
 		return -EINVAL;
 	}
@@ -447,7 +447,8 @@ static ssize_t efivar_create(struct file *filp, struct kobject *kobj,
 	}
 
 	if ((attributes & ~EFI_VARIABLE_MASK) != 0 ||
-	    efivar_validate(name, data, size) == false) {
+	    efivar_validate(new_var->VendorGuid, name, data,
+			    size) == false) {
 		printk(KERN_ERR "efivars: Malformed variable content\n");
 		return -EINVAL;
 	}
diff --git a/drivers/firmware/efi/vars.c b/drivers/firmware/efi/vars.c
index 5c5fde3..9a53da2 100644
--- a/drivers/firmware/efi/vars.c
+++ b/drivers/firmware/efi/vars.c
@@ -165,31 +165,42 @@ validate_ascii_string(efi_char16_t *var_name, int match, u8 *buffer,
 }
 
 struct variable_validate {
+	efi_guid_t vendor;
 	char *name;
 	bool (*validate)(efi_char16_t *var_name, int match, u8 *data,
 			 unsigned long len);
 };
 
+/*
+ * This is the list of variables we need to validate.
+ *
+ * If it has a validate() method that's not NULL, it'll go into the
+ * validation routine.  If not, it is assumed valid.
+ *
+ * Note that it's sorted by {vendor,name}, but globbed names must come after
+ * any other name with the same prefix.
+ */
 static const struct variable_validate variable_validate[] = {
-	{ "BootNext", validate_uint16 },
-	{ "BootOrder", validate_boot_order },
-	{ "DriverOrder", validate_boot_order },
-	{ "Boot*", validate_load_option },
-	{ "Driver*", validate_load_option },
-	{ "ConIn", validate_device_path },
-	{ "ConInDev", validate_device_path },
-	{ "ConOut", validate_device_path },
-	{ "ConOutDev", validate_device_path },
-	{ "ErrOut", validate_device_path },
-	{ "ErrOutDev", validate_device_path },
-	{ "Timeout", validate_uint16 },
-	{ "Lang", validate_ascii_string },
-	{ "PlatformLang", validate_ascii_string },
-	{ "", NULL },
+	{ EFI_GLOBAL_VARIABLE_GUID, "BootNext", validate_uint16 },
+	{ EFI_GLOBAL_VARIABLE_GUID, "BootOrder", validate_boot_order },
+	{ EFI_GLOBAL_VARIABLE_GUID, "Boot*", validate_load_option },
+	{ EFI_GLOBAL_VARIABLE_GUID, "DriverOrder", validate_boot_order },
+	{ EFI_GLOBAL_VARIABLE_GUID, "Driver*", validate_load_option },
+	{ EFI_GLOBAL_VARIABLE_GUID, "ConIn", validate_device_path },
+	{ EFI_GLOBAL_VARIABLE_GUID, "ConInDev", validate_device_path },
+	{ EFI_GLOBAL_VARIABLE_GUID, "ConOut", validate_device_path },
+	{ EFI_GLOBAL_VARIABLE_GUID, "ConOutDev", validate_device_path },
+	{ EFI_GLOBAL_VARIABLE_GUID, "ErrOut", validate_device_path },
+	{ EFI_GLOBAL_VARIABLE_GUID, "ErrOutDev", validate_device_path },
+	{ EFI_GLOBAL_VARIABLE_GUID, "Lang", validate_ascii_string },
+	{ EFI_GLOBAL_VARIABLE_GUID, "PlatformLang", validate_ascii_string },
+	{ EFI_GLOBAL_VARIABLE_GUID, "Timeout", validate_uint16 },
+	{ NULL_GUID, "", NULL },
 };
 
 bool
-efivar_validate(efi_char16_t *var_name, u8 *data, unsigned long data_size)
+efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data,
+		unsigned long data_size)
 {
 	int i;
 	unsigned long utf8_size;
@@ -203,9 +214,12 @@ efivar_validate(efi_char16_t *var_name, u8 *data, unsigned long data_size)
 	ucs2_as_utf8(utf8_name, var_name, utf8_size);
 	utf8_name[utf8_size] = '\0';
 
-	for (i = 0; variable_validate[i].validate != NULL; i++) {
+	for (i = 0; variable_validate[i].name[0] != '\0'; i++) {
 		const char *name = variable_validate[i].name;
-		int match;
+		int match = 0;
+
+		if (efi_guidcmp(vendor, variable_validate[i].vendor))
+			continue;
 
 		for (match = 0; ; match++) {
 			char c = name[match];
@@ -862,7 +876,7 @@ int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes,
 
 	*set = false;
 
-	if (efivar_validate(name, data, *size) == false)
+	if (efivar_validate(*vendor, name, data, *size) == false)
 		return -EINVAL;
 
 	/*
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 0238d61..030a2b7 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1159,7 +1159,8 @@ int efivar_entry_iter(int (*func)(struct efivar_entry *, void *),
 struct efivar_entry *efivar_entry_find(efi_char16_t *name, efi_guid_t guid,
 				       struct list_head *head, bool remove);
 
-bool efivar_validate(efi_char16_t *var_name, u8 *data, unsigned long len);
+bool efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data,
+		     unsigned long data_size);
 
 extern struct work_struct efivar_work;
 void efivar_run_worker(void);
-- 
2.7.4

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#1377215 — [PATCH 3.19.y-ckt 55/56] mwifiex: fix corner case association failure

FromKamal Mostafa <kamal@canonical.com>
Date2016-04-12 23:10 +0200
Subject[PATCH 3.19.y-ckt 55/56] mwifiex: fix corner case association failure
Message-ID<rndJn-5Cv-7@gated-at.bofh.it>
In reply to#1377182
3.19.8-ckt19 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Amitkumar Karwar <akarwar@marvell.com>

commit a6139b6271f9f95377fe3486aed6120c9142779b upstream.

This patch corrects the error case in association path by returning
-1. Earlier "media_connected" used to remain on in this error case
causing failure for further association attempts.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Fixes: b887664d882ee4 ('mwifiex: channel switch handling for station')
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
[ luis: backported to 3.16:
  - file rename: drivers/net/wireless/marvell/mwifiex/sta_ioctl.c ->
    drivers/net/wireless/mwifiex/sta_ioctl.c
  - adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/net/wireless/mwifiex/sta_ioctl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c
index 1626868..860640f 100644
--- a/drivers/net/wireless/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/mwifiex/sta_ioctl.c
@@ -307,6 +307,7 @@ int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss,
 			dev_err(adapter->dev,
 				"Attempt to reconnect on csa closed chan(%d)\n",
 				bss_desc->channel);
+			ret = -1;
 			goto done;
 		}
 
-- 
2.7.4

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#1377216 — [PATCH 3.19.y-ckt 53/56] perf/x86/intel: Fix PEBS data source interpretation on Nehalem/Westmere

FromKamal Mostafa <kamal@canonical.com>
Date2016-04-12 23:10 +0200
Subject[PATCH 3.19.y-ckt 53/56] perf/x86/intel: Fix PEBS data source interpretation on Nehalem/Westmere
Message-ID<rndJn-5Cv-9@gated-at.bofh.it>
In reply to#1377182
3.19.8-ckt19 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Andi Kleen <ak@linux.intel.com>

commit e17dc65328057c00db7e1bfea249c8771a78b30b upstream.

Jiri reported some time ago that some entries in the PEBS data source table
in perf do not agree with the SDM. We investigated and the bits
changed for Sandy Bridge, but the SDM was not updated.

perf already implements the bits correctly for Sandy Bridge
and later. This patch patches it up for Nehalem and Westmere.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: jolsa@kernel.org
Link: http://lkml.kernel.org/r/1456871124-15985-1-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
[ luis: backported to 3.16:
  - file rename:
    arch/x86/events/intel/core.c -> arch/x86/kernel/cpu/perf_event_intel.c
    arch/x86/events/intel/ds.c -> arch/x86/kernel/cpu/perf_event_intel_ds.c
    arch/x86/events/perf_event.h -> arch/x86/kernel/cpu/perf_event.h ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/x86/kernel/cpu/perf_event.h          |  2 ++
 arch/x86/kernel/cpu/perf_event_intel.c    |  2 ++
 arch/x86/kernel/cpu/perf_event_intel_ds.c | 11 ++++++++++-
 3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h
index 5959a0c..f2d3dfc 100644
--- a/arch/x86/kernel/cpu/perf_event.h
+++ b/arch/x86/kernel/cpu/perf_event.h
@@ -746,6 +746,8 @@ void intel_pmu_lbr_init_atom(void);
 
 void intel_pmu_lbr_init_snb(void);
 
+void intel_pmu_pebs_data_source_nhm(void);
+
 int intel_pmu_setup_lbr_filter(struct perf_event *event);
 
 int p4_pmu_init(void);
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index 498b6d9..bd0ec1a 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -2410,6 +2410,7 @@ __init int intel_pmu_init(void)
 		intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] =
 			X86_CONFIG(.event=0xb1, .umask=0x3f, .inv=1, .cmask=1);
 
+		intel_pmu_pebs_data_source_nhm();
 		x86_add_quirk(intel_nehalem_quirk);
 
 		pr_cont("Nehalem events, ");
@@ -2472,6 +2473,7 @@ __init int intel_pmu_init(void)
 		intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] =
 			X86_CONFIG(.event=0xb1, .umask=0x3f, .inv=1, .cmask=1);
 
+		intel_pmu_pebs_data_source_nhm();
 		pr_cont("Westmere events, ");
 		break;
 
diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c
index ae3accf..4b4bd1b 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_ds.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c
@@ -51,7 +51,8 @@ union intel_x86_pebs_dse {
 #define OP_LH (P(OP, LOAD) | P(LVL, HIT))
 #define SNOOP_NONE_MISS (P(SNOOP, NONE) | P(SNOOP, MISS))
 
-static const u64 pebs_data_source[] = {
+/* Version for Sandy Bridge and later */
+static u64 pebs_data_source[] = {
 	P(OP, LOAD) | P(LVL, MISS) | P(LVL, L3) | P(SNOOP, NA),/* 0x00:ukn L3 */
 	OP_LH | P(LVL, L1)  | P(SNOOP, NONE),	/* 0x01: L1 local */
 	OP_LH | P(LVL, LFB) | P(SNOOP, NONE),	/* 0x02: LFB hit */
@@ -70,6 +71,14 @@ static const u64 pebs_data_source[] = {
 	OP_LH | P(LVL, UNC) | P(SNOOP, NONE), /* 0x0f: uncached */
 };
 
+/* Patch up minor differences in the bits */
+void __init intel_pmu_pebs_data_source_nhm(void)
+{
+	pebs_data_source[0x05] = OP_LH | P(LVL, L3)  | P(SNOOP, HIT);
+	pebs_data_source[0x06] = OP_LH | P(LVL, L3)  | P(SNOOP, HITM);
+	pebs_data_source[0x07] = OP_LH | P(LVL, L3)  | P(SNOOP, HITM);
+}
+
 static u64 precise_store_data(u64 status)
 {
 	union intel_x86_pebs_dse dse;
-- 
2.7.4

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#1377217 — [PATCH 3.19.y-ckt 42/56] Drivers: hv: vmbus: prevent cpu offlining on newer hypervisors

FromKamal Mostafa <kamal@canonical.com>
Date2016-04-12 23:10 +0200
Subject[PATCH 3.19.y-ckt 42/56] Drivers: hv: vmbus: prevent cpu offlining on newer hypervisors
Message-ID<rndJo-5Cv-13@gated-at.bofh.it>
In reply to#1377182
3.19.8-ckt19 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Vitaly Kuznetsov <vkuznets@redhat.com>

commit e513229b4c386e6c9f66298c13fde92f73e6e1ac upstream.

When an SMP Hyper-V guest is running on top of 2012R2 Server and secondary
cpus are sent offline (with echo 0 > /sys/devices/system/cpu/cpu$cpu/online)
the system freeze is observed. This happens due to the fact that on newer
hypervisors (Win8, WS2012R2, ...) vmbus channel handlers are distributed
across all cpus (see init_vp_index() function in drivers/hv/channel_mgmt.c)
and on cpu offlining nobody reassigns them to CPU0. Prevent cpu offlining
when vmbus is loaded until the issue is fixed host-side.

This patch also disables hibernation but it is OK as it is also broken (MCE
error is hit on resume). Suspend still works.

Tested with WS2008R2 and WS2012R2.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Chas Williams <3chas3@gmail.com>
[ luis: backported to 3.16: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/hv/vmbus_drv.c | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 4d6b269..233da0b 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -32,6 +32,7 @@
 #include <linux/completion.h>
 #include <linux/hyperv.h>
 #include <linux/kernel_stat.h>
+#include <linux/cpu.h>
 #include <asm/hyperv.h>
 #include <asm/hypervisor.h>
 #include <asm/mshyperv.h>
@@ -671,6 +672,39 @@ static void vmbus_isr(void)
 		tasklet_schedule(&msg_dpc);
 }
 
+#ifdef CONFIG_HOTPLUG_CPU
+static int hyperv_cpu_disable(void)
+{
+	return -ENOSYS;
+}
+
+static void hv_cpu_hotplug_quirk(bool vmbus_loaded)
+{
+	static void *previous_cpu_disable;
+
+	/*
+	 * Offlining a CPU when running on newer hypervisors (WS2012R2, Win8,
+	 * ...) is not supported at this moment as channel interrupts are
+	 * distributed across all of them.
+	 */
+
+	if ((vmbus_proto_version == VERSION_WS2008) ||
+	    (vmbus_proto_version == VERSION_WIN7))
+		return;
+
+	if (vmbus_loaded) {
+		previous_cpu_disable = smp_ops.cpu_disable;
+		smp_ops.cpu_disable = hyperv_cpu_disable;
+		pr_notice("CPU offlining is not supported by hypervisor\n");
+	} else if (previous_cpu_disable)
+		smp_ops.cpu_disable = previous_cpu_disable;
+}
+#else
+static void hv_cpu_hotplug_quirk(bool vmbus_loaded)
+{
+}
+#endif
+
 /*
  * vmbus_bus_init -Main vmbus driver initialization routine.
  *
@@ -711,6 +745,7 @@ static int vmbus_bus_init(int irq)
 	if (ret)
 		goto err_alloc;
 
+	hv_cpu_hotplug_quirk(true);
 	vmbus_request_offers();
 
 	return 0;
@@ -964,6 +999,7 @@ static void __exit vmbus_exit(void)
 	bus_unregister(&hv_bus);
 	hv_cleanup();
 	acpi_bus_unregister_driver(&vmbus_acpi_driver);
+	hv_cpu_hotplug_quirk(false);
 }
 
 
-- 
2.7.4

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#1377218 — [PATCH 3.19.y-ckt 50/56] lib/ucs2_string: Correct ucs2 -> utf8 conversion

FromKamal Mostafa <kamal@canonical.com>
Date2016-04-12 23:10 +0200
Subject[PATCH 3.19.y-ckt 50/56] lib/ucs2_string: Correct ucs2 -> utf8 conversion
Message-ID<rndJn-5Cv-11@gated-at.bofh.it>
In reply to#1377182
3.19.8-ckt19 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Jason Andryuk <jandryuk@gmail.com>

commit a68075908a37850918ad96b056acc9ac4ce1bd90 upstream.

The comparisons should be >= since 0x800 and 0x80 require an additional bit
to store.

For the 3 byte case, the existing shift would drop off 2 more bits than
intended.

For the 2 byte case, there should be 5 bits bits in byte 1, and 6 bits in
byte 2.

Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Cc: Peter Jones <pjones@redhat.com>
Cc: Matthew Garrett <mjg59@coreos.com>
Cc: "Lee, Chun-Yi" <jlee@suse.com>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 lib/ucs2_string.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/lib/ucs2_string.c b/lib/ucs2_string.c
index 17dd74e..f0b323a 100644
--- a/lib/ucs2_string.c
+++ b/lib/ucs2_string.c
@@ -59,9 +59,9 @@ ucs2_utf8size(const ucs2_char_t *src)
 	for (i = 0; i < ucs2_strlen(src); i++) {
 		u16 c = src[i];
 
-		if (c > 0x800)
+		if (c >= 0x800)
 			j += 3;
-		else if (c > 0x80)
+		else if (c >= 0x80)
 			j += 2;
 		else
 			j += 1;
@@ -88,19 +88,19 @@ ucs2_as_utf8(u8 *dest, const ucs2_char_t *src, unsigned long maxlength)
 	for (i = 0; maxlength && i < limit; i++) {
 		u16 c = src[i];
 
-		if (c > 0x800) {
+		if (c >= 0x800) {
 			if (maxlength < 3)
 				break;
 			maxlength -= 3;
 			dest[j++] = 0xe0 | (c & 0xf000) >> 12;
-			dest[j++] = 0x80 | (c & 0x0fc0) >> 8;
+			dest[j++] = 0x80 | (c & 0x0fc0) >> 6;
 			dest[j++] = 0x80 | (c & 0x003f);
-		} else if (c > 0x80) {
+		} else if (c >= 0x80) {
 			if (maxlength < 2)
 				break;
 			maxlength -= 2;
-			dest[j++] = 0xc0 | (c & 0xfe0) >> 5;
-			dest[j++] = 0x80 | (c & 0x01f);
+			dest[j++] = 0xc0 | (c & 0x7c0) >> 6;
+			dest[j++] = 0x80 | (c & 0x03f);
 		} else {
 			maxlength -= 1;
 			dest[j++] = c & 0x7f;
-- 
2.7.4

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#1377219 — [PATCH 3.19.y-ckt 40/56] pinctrl: nomadik: fix pull debug print inversion

FromKamal Mostafa <kamal@canonical.com>
Date2016-04-12 23:10 +0200
Subject[PATCH 3.19.y-ckt 40/56] pinctrl: nomadik: fix pull debug print inversion
Message-ID<rndJo-5Cv-19@gated-at.bofh.it>
In reply to#1377182
3.19.8-ckt19 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Linus Walleij <linus.walleij@linaro.org>

commit 6ee334559324a55725e22463de633b99ad99fcad upstream.

Pull up was reported as pull down and vice versa. Fix this.

Fixes: 8f1774a2a971 "pinctrl: nomadik: improve GPIO debug prints"
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/pinctrl/nomadik/pinctrl-nomadik.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik.c b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
index a6a2205..f4b1dac 100644
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik.c
+++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
@@ -1025,7 +1025,7 @@ static void nmk_gpio_dbg_show_one(struct seq_file *s,
 		int pullidx = 0;
 
 		if (pull)
-			pullidx = data_out ? 1 : 2;
+			pullidx = data_out ? 2 : 1;
 
 		seq_printf(s, " gpio-%-3d (%-20.20s) in  %s %s",
 			   gpio,
-- 
2.7.4

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#1377220 — [PATCH 3.19.y-ckt 54/56] ALSA: hda - Add new GPU codec ID 0x10de0082 to snd-hda

FromKamal Mostafa <kamal@canonical.com>
Date2016-04-12 23:10 +0200
Subject[PATCH 3.19.y-ckt 54/56] ALSA: hda - Add new GPU codec ID 0x10de0082 to snd-hda
Message-ID<rndJp-5Cv-23@gated-at.bofh.it>
In reply to#1377182
3.19.8-ckt19 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Aaron Plattner <aplattner@nvidia.com>

commit 2d369c748c2ecc2a012ee85412a04007e67913ec upstream.

Vendor ID 0x10de0082 is used by a yet-to-be-named GPU chip.

This chip also has the 2-ch audio swapping bug, so patch_nvhdmi is
appropriate here.

Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
[ luis: backported to 3.16:
  - 3.16 still uses old hda_codec_preset infrastructure ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 sound/pci/hda/patch_hdmi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 705e6c1..42d9f62 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -3357,6 +3357,7 @@ static const struct hda_codec_preset snd_hda_preset_hdmi[] = {
 { .id = 0x10de0071, .name = "GPU 71 HDMI/DP",	.patch = patch_nvhdmi },
 { .id = 0x10de0072, .name = "GPU 72 HDMI/DP",	.patch = patch_nvhdmi },
 { .id = 0x10de007d, .name = "GPU 7d HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de0082, .name = "GPU 82 HDMI/DP",	.patch = patch_nvhdmi },
 { .id = 0x10de8001, .name = "MCP73 HDMI",	.patch = patch_nvhdmi_2ch },
 { .id = 0x11069f80, .name = "VX900 HDMI/DP",	.patch = patch_via_hdmi },
 { .id = 0x11069f81, .name = "VX900 HDMI/DP",	.patch = patch_via_hdmi },
-- 
2.7.4

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#1377221 — [PATCH 3.19.y-ckt 27/56] ALSA: usb-audio: Minor code cleanup in create_fixed_stream_quirk()

FromKamal Mostafa <kamal@canonical.com>
Date2016-04-12 23:10 +0200
Subject[PATCH 3.19.y-ckt 27/56] ALSA: usb-audio: Minor code cleanup in create_fixed_stream_quirk()
Message-ID<rndJp-5Cv-21@gated-at.bofh.it>
In reply to#1377182
3.19.8-ckt19 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Takashi Iwai <tiwai@suse.de>

commit 902eb7fd1e4af3ac69b9b30f8373f118c92b9729 upstream.

Just a minor code cleanup: unify the error paths.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 sound/usb/quirks.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 20ed435..8aa81ed 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -164,23 +164,18 @@ static int create_fixed_stream_quirk(struct snd_usb_audio *chip,
 	stream = (fp->endpoint & USB_DIR_IN)
 		? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
 	err = snd_usb_add_audio_stream(chip, stream, fp);
-	if (err < 0) {
-		kfree(fp);
-		kfree(rate_table);
-		return err;
-	}
+	if (err < 0)
+		goto error;
 	if (fp->iface != get_iface_desc(&iface->altsetting[0])->bInterfaceNumber ||
 	    fp->altset_idx >= iface->num_altsetting) {
-		kfree(fp);
-		kfree(rate_table);
-		return -EINVAL;
+		err = -EINVAL;
+		goto error;
 	}
 	alts = &iface->altsetting[fp->altset_idx];
 	altsd = get_iface_desc(alts);
 	if (altsd->bNumEndpoints < 1) {
-		kfree(fp);
-		kfree(rate_table);
-		return -EINVAL;
+		err = -EINVAL;
+		goto error;
 	}
 
 	fp->protocol = altsd->bInterfaceProtocol;
@@ -193,6 +188,11 @@ static int create_fixed_stream_quirk(struct snd_usb_audio *chip,
 	snd_usb_init_pitch(chip, fp->iface, alts, fp);
 	snd_usb_init_sample_rate(chip, fp->iface, alts, fp, fp->rate_max);
 	return 0;
+
+ error:
+	kfree(fp);
+	kfree(rate_table);
+	return err;
 }
 
 static int create_auto_pcm_quirk(struct snd_usb_audio *chip,
-- 
2.7.4

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#1377222 — [PATCH 3.19.y-ckt 15/56] USB: digi_acceleport: do sanity checking for the number of ports

FromKamal Mostafa <kamal@canonical.com>
Date2016-04-12 23:10 +0200
Subject[PATCH 3.19.y-ckt 15/56] USB: digi_acceleport: do sanity checking for the number of ports
Message-ID<rndJp-5Cv-25@gated-at.bofh.it>
In reply to#1377182
3.19.8-ckt19 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Oliver Neukum <oneukum@suse.com>

commit 5a07975ad0a36708c6b0a5b9fea1ff811d0b0c1f upstream.

The driver can be crashed with devices that expose crafted descriptors
with too few endpoints.

See: http://seclists.org/bugtraq/2016/Mar/61

Signed-off-by: Oliver Neukum <ONeukum@suse.com>
[johan: fix OOB endpoint check and add error messages ]
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/usb/serial/digi_acceleport.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c
index 12b0e67..3df7b7e 100644
--- a/drivers/usb/serial/digi_acceleport.c
+++ b/drivers/usb/serial/digi_acceleport.c
@@ -1251,8 +1251,27 @@ static int digi_port_init(struct usb_serial_port *port, unsigned port_num)
 
 static int digi_startup(struct usb_serial *serial)
 {
+	struct device *dev = &serial->interface->dev;
 	struct digi_serial *serial_priv;
 	int ret;
+	int i;
+
+	/* check whether the device has the expected number of endpoints */
+	if (serial->num_port_pointers < serial->type->num_ports + 1) {
+		dev_err(dev, "OOB endpoints missing\n");
+		return -ENODEV;
+	}
+
+	for (i = 0; i < serial->type->num_ports + 1 ; i++) {
+		if (!serial->port[i]->read_urb) {
+			dev_err(dev, "bulk-in endpoint missing\n");
+			return -ENODEV;
+		}
+		if (!serial->port[i]->write_urb) {
+			dev_err(dev, "bulk-out endpoint missing\n");
+			return -ENODEV;
+		}
+	}
 
 	serial_priv = kzalloc(sizeof(*serial_priv), GFP_KERNEL);
 	if (!serial_priv)
-- 
2.7.4

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#1377223 — [PATCH 3.19.y-ckt 44/56] lib/ucs2_string: Add ucs2 -> utf8 helper functions

FromKamal Mostafa <kamal@canonical.com>
Date2016-04-12 23:10 +0200
Subject[PATCH 3.19.y-ckt 44/56] lib/ucs2_string: Add ucs2 -> utf8 helper functions
Message-ID<rndJp-5Cv-29@gated-at.bofh.it>
In reply to#1377182
3.19.8-ckt19 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Peter Jones <pjones@redhat.com>

commit 73500267c930baadadb0d02284909731baf151f7 upstream.

This adds ucs2_utf8size(), which tells us how big our ucs2 string is in
bytes, and ucs2_as_utf8, which translates from ucs2 to utf8..

Signed-off-by: Peter Jones <pjones@redhat.com>
Tested-by: Lee, Chun-Yi <jlee@suse.com>
Acked-by: Matthew Garrett <mjg59@coreos.com>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 include/linux/ucs2_string.h |  4 +++
 lib/ucs2_string.c           | 62 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 66 insertions(+)

diff --git a/include/linux/ucs2_string.h b/include/linux/ucs2_string.h
index cbb20af..bb679b4 100644
--- a/include/linux/ucs2_string.h
+++ b/include/linux/ucs2_string.h
@@ -11,4 +11,8 @@ unsigned long ucs2_strlen(const ucs2_char_t *s);
 unsigned long ucs2_strsize(const ucs2_char_t *data, unsigned long maxlength);
 int ucs2_strncmp(const ucs2_char_t *a, const ucs2_char_t *b, size_t len);
 
+unsigned long ucs2_utf8size(const ucs2_char_t *src);
+unsigned long ucs2_as_utf8(u8 *dest, const ucs2_char_t *src,
+			   unsigned long maxlength);
+
 #endif /* _LINUX_UCS2_STRING_H_ */
diff --git a/lib/ucs2_string.c b/lib/ucs2_string.c
index 6f500ef..17dd74e 100644
--- a/lib/ucs2_string.c
+++ b/lib/ucs2_string.c
@@ -49,3 +49,65 @@ ucs2_strncmp(const ucs2_char_t *a, const ucs2_char_t *b, size_t len)
         }
 }
 EXPORT_SYMBOL(ucs2_strncmp);
+
+unsigned long
+ucs2_utf8size(const ucs2_char_t *src)
+{
+	unsigned long i;
+	unsigned long j = 0;
+
+	for (i = 0; i < ucs2_strlen(src); i++) {
+		u16 c = src[i];
+
+		if (c > 0x800)
+			j += 3;
+		else if (c > 0x80)
+			j += 2;
+		else
+			j += 1;
+	}
+
+	return j;
+}
+EXPORT_SYMBOL(ucs2_utf8size);
+
+/*
+ * copy at most maxlength bytes of whole utf8 characters to dest from the
+ * ucs2 string src.
+ *
+ * The return value is the number of characters copied, not including the
+ * final NUL character.
+ */
+unsigned long
+ucs2_as_utf8(u8 *dest, const ucs2_char_t *src, unsigned long maxlength)
+{
+	unsigned int i;
+	unsigned long j = 0;
+	unsigned long limit = ucs2_strnlen(src, maxlength);
+
+	for (i = 0; maxlength && i < limit; i++) {
+		u16 c = src[i];
+
+		if (c > 0x800) {
+			if (maxlength < 3)
+				break;
+			maxlength -= 3;
+			dest[j++] = 0xe0 | (c & 0xf000) >> 12;
+			dest[j++] = 0x80 | (c & 0x0fc0) >> 8;
+			dest[j++] = 0x80 | (c & 0x003f);
+		} else if (c > 0x80) {
+			if (maxlength < 2)
+				break;
+			maxlength -= 2;
+			dest[j++] = 0xc0 | (c & 0xfe0) >> 5;
+			dest[j++] = 0x80 | (c & 0x01f);
+		} else {
+			maxlength -= 1;
+			dest[j++] = c & 0x7f;
+		}
+	}
+	if (maxlength)
+		dest[j] = '\0';
+	return j;
+}
+EXPORT_SYMBOL(ucs2_as_utf8);
-- 
2.7.4

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#1377225 — [PATCH 3.19.y-ckt 51/56] ipr: Fix out-of-bounds null overwrite

FromKamal Mostafa <kamal@canonical.com>
Date2016-04-12 23:10 +0200
Subject[PATCH 3.19.y-ckt 51/56] ipr: Fix out-of-bounds null overwrite
Message-ID<rndJp-5Cv-27@gated-at.bofh.it>
In reply to#1377182
3.19.8-ckt19 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Insu Yun <wuninsu@gmail.com>

commit d63c7dd5bcb9441af0526d370c43a65ca2c980d9 upstream.

Return value of snprintf is not bound by size value, 2nd argument.
(https://www.kernel.org/doc/htmldocs/kernel-api/API-snprintf.html).
Return value is number of printed chars, can be larger than 2nd
argument.  Therefore, it can write null byte out of bounds ofbuffer.
Since snprintf puts null, it does not need to put additional null byte.

Signed-off-by: Insu Yun <wuninsu@gmail.com>
Reviewed-by: Shane Seymour <shane.seymour@hpe.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/scsi/ipr.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index f13996e..61746e8 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -3993,13 +3993,12 @@ static ssize_t ipr_store_update_fw(struct device *dev,
 	struct ipr_sglist *sglist;
 	char fname[100];
 	char *src;
-	int len, result, dnld_size;
+	int result, dnld_size;
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EACCES;
 
-	len = snprintf(fname, 99, "%s", buf);
-	fname[len-1] = '\0';
+	snprintf(fname, sizeof(fname), "%s", buf);
 
 	if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
 		dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
-- 
2.7.4

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#1377226 — [PATCH 3.19.y-ckt 43/56] KVM: x86: move steal time initialization to vcpu entry time

FromKamal Mostafa <kamal@canonical.com>
Date2016-04-12 23:10 +0200
Subject[PATCH 3.19.y-ckt 43/56] KVM: x86: move steal time initialization to vcpu entry time
Message-ID<rndJp-5Cv-33@gated-at.bofh.it>
In reply to#1377182
3.19.8-ckt19 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Marcelo Tosatti <mtosatti@redhat.com>

commit 7cae2bedcbd4680b155999655e49c27b9cf020fa upstream.

As reported at https://bugs.launchpad.net/qemu/+bug/1494350,
it is possible to have vcpu->arch.st.last_steal initialized
from a thread other than vcpu thread, say the iothread, via
KVM_SET_MSRS.

Which can cause an overflow later (when subtracting from vcpu threads
sched_info.run_delay).

To avoid that, move steal time accumulation to vcpu entry time,
before copying steal time data to guest.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Reviewed-by: David Matlack <dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: Liang Chen <liangchen.linux@gmail.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 arch/x86/kvm/x86.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 6d99bc5..18bfb6c 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2068,6 +2068,8 @@ static void accumulate_steal_time(struct kvm_vcpu *vcpu)
 
 static void record_steal_time(struct kvm_vcpu *vcpu)
 {
+	accumulate_steal_time(vcpu);
+
 	if (!(vcpu->arch.st.msr_val & KVM_MSR_ENABLED))
 		return;
 
@@ -2201,12 +2203,6 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
 		if (!(data & KVM_MSR_ENABLED))
 			break;
 
-		vcpu->arch.st.last_steal = current->sched_info.run_delay;
-
-		preempt_disable();
-		accumulate_steal_time(vcpu);
-		preempt_enable();
-
 		kvm_make_request(KVM_REQ_STEAL_UPDATE, vcpu);
 
 		break;
@@ -2908,7 +2904,6 @@ void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 		vcpu->cpu = cpu;
 	}
 
-	accumulate_steal_time(vcpu);
 	kvm_make_request(KVM_REQ_STEAL_UPDATE, vcpu);
 }
 
-- 
2.7.4

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#1377227 — [PATCH 3.19.y-ckt 30/56] drm/dp: move hw_mutex up the call stack

FromKamal Mostafa <kamal@canonical.com>
Date2016-04-12 23:10 +0200
Subject[PATCH 3.19.y-ckt 30/56] drm/dp: move hw_mutex up the call stack
Message-ID<rndJp-5Cv-35@gated-at.bofh.it>
In reply to#1377182
3.19.8-ckt19 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Rob Clark <robdclark@gmail.com>

commit 7779c5e23c5132c22a219f1f5554ef81dd15ee91 upstream.

1) don't let other threads trying to bang on aux channel interrupt the
defer timeout/logic
2) don't let other threads interrupt the i2c over aux logic

Technically, according to people who actually have the DP spec, this
should not be required.  In practice, it makes some troublesome Dell
monitor (and perhaps others) work, so probably a case of "It's compliant
if it works with windows" on the hw vendor's part..

v2: rebased to come before DPCD/AUX logging patch for easier backport
to stable branches.

Reported-by: Dave Wysochanski <dwysocha@redhat.com>
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1274157
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/gpu/drm/drm_dp_helper.c | 27 +++++++++++++++++----------
 1 file changed, 17 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c
index 79968e3..ea8eadd 100644
--- a/drivers/gpu/drm/drm_dp_helper.c
+++ b/drivers/gpu/drm/drm_dp_helper.c
@@ -176,7 +176,7 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request,
 {
 	struct drm_dp_aux_msg msg;
 	unsigned int retry;
-	int err;
+	int err = 0;
 
 	memset(&msg, 0, sizeof(msg));
 	msg.address = offset;
@@ -184,6 +184,8 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request,
 	msg.buffer = buffer;
 	msg.size = size;
 
+	mutex_lock(&aux->hw_mutex);
+
 	/*
 	 * The specification doesn't give any recommendation on how often to
 	 * retry native transactions. We used to retry 7 times like for
@@ -192,25 +194,24 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request,
 	 */
 	for (retry = 0; retry < 32; retry++) {
 
-		mutex_lock(&aux->hw_mutex);
 		err = aux->transfer(aux, &msg);
-		mutex_unlock(&aux->hw_mutex);
 		if (err < 0) {
 			if (err == -EBUSY)
 				continue;
 
-			return err;
+			goto unlock;
 		}
 
 
 		switch (msg.reply & DP_AUX_NATIVE_REPLY_MASK) {
 		case DP_AUX_NATIVE_REPLY_ACK:
 			if (err < size)
-				return -EPROTO;
-			return err;
+				err = -EPROTO;
+			goto unlock;
 
 		case DP_AUX_NATIVE_REPLY_NACK:
-			return -EIO;
+			err = -EIO;
+			goto unlock;
 
 		case DP_AUX_NATIVE_REPLY_DEFER:
 			usleep_range(400, 500);
@@ -219,7 +220,11 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request,
 	}
 
 	DRM_DEBUG_KMS("too many retries, giving up\n");
-	return -EIO;
+	err = -EIO;
+
+unlock:
+	mutex_unlock(&aux->hw_mutex);
+	return err;
 }
 
 /**
@@ -408,9 +413,7 @@ static int drm_dp_i2c_do_msg(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
 	 * before giving up the AUX transaction.
 	 */
 	for (retry = 0; retry < 7; retry++) {
-		mutex_lock(&aux->hw_mutex);
 		err = aux->transfer(aux, msg);
-		mutex_unlock(&aux->hw_mutex);
 		if (err < 0) {
 			if (err == -EBUSY)
 				continue;
@@ -492,6 +495,8 @@ static int drm_dp_i2c_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs,
 
 	memset(&msg, 0, sizeof(msg));
 
+	mutex_lock(&aux->hw_mutex);
+
 	for (i = 0; i < num; i++) {
 		msg.address = msgs[i].addr;
 		msg.request = (msgs[i].flags & I2C_M_RD) ?
@@ -536,6 +541,8 @@ static int drm_dp_i2c_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs,
 	msg.size = 0;
 	(void)drm_dp_i2c_do_msg(aux, &msg);
 
+	mutex_unlock(&aux->hw_mutex);
+
 	return err;
 }
 
-- 
2.7.4

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#1377228 — [PATCH 3.19.y-ckt 49/56] efi: Add pstore variables to the deletion whitelist

FromKamal Mostafa <kamal@canonical.com>
Date2016-04-12 23:10 +0200
Subject[PATCH 3.19.y-ckt 49/56] efi: Add pstore variables to the deletion whitelist
Message-ID<rndJp-5Cv-43@gated-at.bofh.it>
In reply to#1377182
3.19.8-ckt19 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Matt Fleming <matt@codeblueprint.co.uk>

commit e246eb568bc4cbbdd8a30a3c11151ff9b7ca7312 upstream.

Laszlo explains why this is a good idea,

 'This is because the pstore filesystem can be backed by UEFI variables,
  and (for example) a crash might dump the last kilobytes of the dmesg
  into a number of pstore entries, each entry backed by a separate UEFI
  variable in the above GUID namespace, and with a variable name
  according to the above pattern.

  Please see "drivers/firmware/efi/efi-pstore.c".

  While this patch series will not prevent the user from deleting those
  UEFI variables via the pstore filesystem (i.e., deleting a pstore fs
  entry will continue to delete the backing UEFI variable), I think it
  would be nice to preserve the possibility for the sysadmin to delete
  Linux-created UEFI variables that carry portions of the crash log,
  *without* having to mount the pstore filesystem.'

There's also no chance of causing machines to become bricked by
deleting these variables, which is the whole purpose of excluding
things from the whitelist.

Use the LINUX_EFI_CRASH_GUID guid and a wildcard '*' for the match so
that we don't have to update the string in the future if new variable
name formats are created for crash dump variables.

Reported-by: Laszlo Ersek <lersek@redhat.com>
Acked-by: Peter Jones <pjones@redhat.com>
Tested-by: Peter Jones <pjones@redhat.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: "Lee, Chun-Yi" <jlee@suse.com>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/firmware/efi/vars.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/firmware/efi/vars.c b/drivers/firmware/efi/vars.c
index 50f10ba..7f2ea21 100644
--- a/drivers/firmware/efi/vars.c
+++ b/drivers/firmware/efi/vars.c
@@ -198,6 +198,7 @@ static const struct variable_validate variable_validate[] = {
 	{ EFI_GLOBAL_VARIABLE_GUID, "OsIndications", NULL },
 	{ EFI_GLOBAL_VARIABLE_GUID, "PlatformLang", validate_ascii_string },
 	{ EFI_GLOBAL_VARIABLE_GUID, "Timeout", validate_uint16 },
+	{ LINUX_EFI_CRASH_GUID, "*", NULL },
 	{ NULL_GUID, "", NULL },
 };
 
-- 
2.7.4

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#1377229 — [PATCH 3.19.y-ckt 45/56] efi: Use ucs2_as_utf8 in efivarfs instead of open coding a bad version

FromKamal Mostafa <kamal@canonical.com>
Date2016-04-12 23:10 +0200
Subject[PATCH 3.19.y-ckt 45/56] efi: Use ucs2_as_utf8 in efivarfs instead of open coding a bad version
Message-ID<rndJp-5Cv-41@gated-at.bofh.it>
In reply to#1377182
3.19.8-ckt19 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Peter Jones <pjones@redhat.com>

commit e0d64e6a880e64545ad7d55786aa84ab76bac475 upstream.

Translate EFI's UCS-2 variable names to UTF-8 instead of just assuming
all variable names fit in ASCII.

Signed-off-by: Peter Jones <pjones@redhat.com>
Acked-by: Matthew Garrett <mjg59@coreos.com>
Tested-by: Lee, Chun-Yi <jlee@suse.com>
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
[ luis: backported to 3.16: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 drivers/firmware/efi/efivars.c | 28 ++++++++++------------------
 fs/efivarfs/super.c            |  7 +++----
 2 files changed, 13 insertions(+), 22 deletions(-)

diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c
index f256ecd..6d27c33 100644
--- a/drivers/firmware/efi/efivars.c
+++ b/drivers/firmware/efi/efivars.c
@@ -542,35 +542,27 @@ efivar_create_sysfs_entry(struct efivar_entry *new_var)
 {
 	int i, short_name_size;
 	char *short_name;
-	unsigned long variable_name_size;
-	efi_char16_t *variable_name;
-
-	variable_name = new_var->var.VariableName;
-	variable_name_size = ucs2_strlen(variable_name) * sizeof(efi_char16_t);
+	unsigned long utf8_name_size;
+	efi_char16_t *variable_name = new_var->var.VariableName;
 
 	/*
-	 * Length of the variable bytes in ASCII, plus the '-' separator,
+	 * Length of the variable bytes in UTF8, plus the '-' separator,
 	 * plus the GUID, plus trailing NUL
 	 */
-	short_name_size = variable_name_size / sizeof(efi_char16_t)
-				+ 1 + EFI_VARIABLE_GUID_LEN + 1;
-
-	short_name = kzalloc(short_name_size, GFP_KERNEL);
+	utf8_name_size = ucs2_utf8size(variable_name);
+	short_name_size = utf8_name_size + 1 + EFI_VARIABLE_GUID_LEN + 1;
 
+	short_name = kmalloc(short_name_size, GFP_KERNEL);
 	if (!short_name)
 		return 1;
 
-	/* Convert Unicode to normal chars (assume top bits are 0),
-	   ala UTF-8 */
-	for (i=0; i < (int)(variable_name_size / sizeof(efi_char16_t)); i++) {
-		short_name[i] = variable_name[i] & 0xFF;
-	}
+	ucs2_as_utf8(short_name, variable_name, short_name_size);
+
 	/* This is ugly, but necessary to separate one vendor's
 	   private variables from another's.         */
-
-	*(short_name + strlen(short_name)) = '-';
+	short_name[utf8_name_size] = '-';
 	efi_guid_unparse(&new_var->var.VendorGuid,
-			 short_name + strlen(short_name));
+			 short_name + utf8_name_size + 1);
 
 	new_var->kobj.kset = efivars_kset;
 
diff --git a/fs/efivarfs/super.c b/fs/efivarfs/super.c
index 7b9efb9..14eb8d7 100644
--- a/fs/efivarfs/super.c
+++ b/fs/efivarfs/super.c
@@ -118,7 +118,7 @@ static int efivarfs_callback(efi_char16_t *name16, efi_guid_t vendor,
 	struct dentry *dentry, *root = sb->s_root;
 	unsigned long size = 0;
 	char *name;
-	int len, i;
+	int len;
 	int err = -ENOMEM;
 
 	entry = kzalloc(sizeof(*entry), GFP_KERNEL);
@@ -128,15 +128,14 @@ static int efivarfs_callback(efi_char16_t *name16, efi_guid_t vendor,
 	memcpy(entry->var.VariableName, name16, name_size);
 	memcpy(&(entry->var.VendorGuid), &vendor, sizeof(efi_guid_t));
 
-	len = ucs2_strlen(entry->var.VariableName);
+	len = ucs2_utf8size(entry->var.VariableName);
 
 	/* name, plus '-', plus GUID, plus NUL*/
 	name = kmalloc(len + 1 + EFI_VARIABLE_GUID_LEN + 1, GFP_KERNEL);
 	if (!name)
 		goto fail;
 
-	for (i = 0; i < len; i++)
-		name[i] = entry->var.VariableName[i] & 0xFF;
+	ucs2_as_utf8(name, entry->var.VariableName, len);
 
 	name[len] = '-';
 
-- 
2.7.4

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#1377230 — [PATCH 3.19.y-ckt 41/56] ipv6: udp: fix UDP_MIB_IGNOREDMULTI updates

FromKamal Mostafa <kamal@canonical.com>
Date2016-04-12 23:10 +0200
Subject[PATCH 3.19.y-ckt 41/56] ipv6: udp: fix UDP_MIB_IGNOREDMULTI updates
Message-ID<rndJp-5Cv-39@gated-at.bofh.it>
In reply to#1377182
3.19.8-ckt19 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Eric Dumazet <edumazet@google.com>

commit 2d4212261fdf13e29728ddb5ea9d60c342cc92b5 upstream.

IPv6 counters updates use a different macro than IPv4.

Fixes: 36cbb2452cbaf ("udp: Increment UDP_MIB_IGNOREDMULTI for arriving unmatched multicasts")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Rick Jones <rick.jones2@hp.com>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
 net/ipv6/udp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index daea755..d2839a2 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -837,8 +837,8 @@ start_lookup:
 		flush_stack(stack, count, skb, count - 1);
 	} else {
 		if (!inner_flushed)
-			UDP_INC_STATS_BH(net, UDP_MIB_IGNOREDMULTI,
-					 proto == IPPROTO_UDPLITE);
+			UDP6_INC_STATS_BH(net, UDP_MIB_IGNOREDMULTI,
+					  proto == IPPROTO_UDPLITE);
 		consume_skb(skb);
 	}
 	return 0;
-- 
2.7.4

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