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561206 commits

Author SHA1 Message Date
Dan Carpenter 8dcb3c7628 Input: egalax_ts_serial - fix potential NULL dereference on error
We didn't check input_allocate_device() for failures so it could lead to
a NULL deref.

Fixes: 6b0f8f9c52 ('Input: add eGalaxTouch serial touchscreen driver')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-19 23:44:40 -08:00
Elias Vanderstuyft daf6cd0c18 Input: uinput - sanity check on ff_effects_max and EV_FF
Currently the user can set ff_effects_max to zero with the EV_FF bit (and
the FF_GAIN and/or FF_AUTOCENTER bits) set, in this case the uninitialized
methods ff->set_gain and/or ff->set_autocenter can be dereferenced,
resulting in a kernel oops.

Check in uinput_create_device() and print a helpful message and return
-EINVAL in case the check fails.

Signed-off-by: Elias Vanderstuyft <elias.vds@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-18 17:48:52 -08:00
David Herrmann fbae10db09 Input: uinput - rework ABS validation
Rework the uinput ABS validation to check passed absinfo data immediately,
but do ABS initialization as last step in UI_DEV_CREATE. The behavior
observed by user-space is not changed, as ABS initialization was never
checked for errors.

With this in place, the order of device initialization and abs
configuration is no longer fixed. Userspace can initialize the device and
afterwards set absinfo just fine.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-18 17:48:51 -08:00
Benjamin Tissoires 052876f8e5 Input: uinput - add new UINPUT_DEV_SETUP and UI_ABS_SETUP ioctl
This adds two new ioctls, UINPUT_DEV_SETUP and UI_ABS_SETUP, that replaces
the old device setup method (by write()'ing "struct uinput_user_dev" to the
node). The old method is not easily extendable and requires huge payloads.
Furthermore, overloading write() without properly versioned objects is
error-prone.

Therefore, we introduce two new ioctls to replace the old method.  These
ioctls support all features of the old method, plus a "resolution" field
for absinfo. Furthermore, it's properly forward-compatible to new ABS codes
and a growing "struct input_absinfo" structure.

UI_ABS_SETUP also allows user-space to skip unknown axes if not set.  There
is no need to copy the whole array temporarily into the kernel, but instead
the caller issues several ioctl where we copy each value manually.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-18 17:48:50 -08:00
Dmitry Torokhov f01c5e652c Merge branch 'psmouse-passthrough' into next
Bring in changes to limit number of protocols we try on pass-though PS/2
ports so that probe ocmpletes faster.
2015-12-17 15:25:10 -08:00
Dmitry Torokhov 190e2031e2 Input: psmouse - rename ps2pp_init() to ps2pp_detect()
This makes Logitech PS2++ protocol implementation consistent with
the naming in other protocols. Also mark the stub as "static inline"

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Marcin Sochacki <msochacki+kernel@gmail.com>
Tested-by: Till <till2.schaefer@uni-dortmund.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-17 15:24:37 -08:00
Dmitry Torokhov ec6184b1c7 Input: psmouse - limit protocols that we try on passthrough ports
PS/2 protocol is slow, and using it with pass-through port (where we
encapsulate PS/2 into PS/2) is slower yet so it takes quite a bit of time
to do full protocol discovery for device attached to a pass-through port.
However, so far we have not see anything but trackpoints or basic PS/2
mice on pass-through ports, so let's limit protocols that we probe there
to Trackpoint, IntelliMouse Explorer, IntelliMouse, and bare PS/2 protocol,
and avoid other extended protocols, such as Synaptics, ALPS, etc.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Marcin Sochacki <msochacki+kernel@gmail.com>
Tested-by: Till <till2.schaefer@uni-dortmund.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-17 15:24:32 -08:00
Dmitry Torokhov c378b5119e Input: psmouse - factor out common protocol probing code
In preparation of limiting protocols that we try on pass-through ports,
let's rework initialization code and factor common code into
psmouse_try_protocol() that accepts protocol type (instead of detec()
function pointer) and can, for most protocols, perform both detection and
initialization.

Note that this removes option of forcing Lifebook protocol on devices that
are not recognized by lifebook_detect() as having the hardware, but I do
not recall anyone using this option.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Marcin Sochacki <msochacki+kernel@gmail.com>
Tested-by: Till <till2.schaefer@uni-dortmund.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-17 15:24:21 -08:00
Dmitry Torokhov 5fa75cfe23 Input: psmouse - move protocol descriptions around
We move protocol descriptions and psmouse_find_by_type() and
pmouse_find_by_name() so that we can use them without forward declarations
in the subsequent patches.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Marcin Sochacki <msochacki+kernel@gmail.com>
Tested-by: Till <till2.schaefer@uni-dortmund.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-17 15:24:16 -08:00
Dmitry Torokhov 24a06f3e3a Input: psmouse - clean up Cypress probe
When Cypress protocol support is disabled cypress_init() is a stub that
always returns -ENOSYS, so there is not point in testing for
CONFIG_MOUSE_PS2_CYPRESS after we decided that we are dealing with a
Cypress device. Also, we should only be calling cypress_detect() when
set_properties argument is "true", like with other protocols.

There is a slight change in behavior to make follow-up patches more
uniform: when we detect Cypress but its initialization fails, instead of
immediately returning PSMOUSE_PS2 protocol we now continue trying
IntelliMouse [Explorer]. Given that Cypress devices only have issue with
Sentelic probes probing Imtellimouse should be safe.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Marcin Sochacki <msochacki+kernel@gmail.com>
Tested-by: Till <till2.schaefer@uni-dortmund.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-17 15:24:04 -08:00
Dmitry Torokhov 2b6f39e9ee Input: psmouse - rearrange Focaltech init code
The fact that we were calling focaltech_init() even when Focaltech support
is disabled was confusing. Rearrange the code so that if support is
disabled we continue to fall through the rest of protocol probing code
until we get to full reset that Focaltech devices need to work properly.

Also, replace focaltech_init() with a stub now that it is only called when
protocol is enabled.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Marcin Sochacki <msochacki+kernel@gmail.com>
Tested-by: Till <till2.schaefer@uni-dortmund.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-17 15:23:54 -08:00
Dmitry Torokhov ad5307715b Input: psmouse - fix comment style
The module was using non-standard comment style with comment blocks often
starting at the very beginning of a line instead of being aligned with the
code. Let's switch to standard formatting.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Marcin Sochacki <msochacki+kernel@gmail.com>
Tested-by: Till <till2.schaefer@uni-dortmund.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-17 15:23:43 -08:00
Dmitry Torokhov 0a88d60784 Input: psmouse - use switch statement in psmouse_process_byte()
Instead of a series mostly exclusive "if" statements testing protocol type
of the mouse let's use "switch" statement.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Tested-by: Marcin Sochacki <msochacki+kernel@gmail.com>
Tested-by: Till <till2.schaefer@uni-dortmund.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-17 15:23:34 -08:00
Damien Riegel 40e3be3933 Input: add touchscreen support for TS-4800
On this board, the touchscreen, an ads7843, is not handled directly by
Linux but by a companion FPGA. This FPGA is memory-mapped and the IP
design is very similar to the mk712.

This commit adds the support for this IP.

Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-16 14:00:51 -08:00
Böszörményi Zoltán 6b0f8f9c52 Input: add eGalaxTouch serial touchscreen driver
There are two EETI touchscreen drivers in the kernel (eeti_ts and
egalax_ts) but both are for I2C-connected panels. This is for a different,
serial and not multi-touch touchscreen panel. The protocol documentation is
at http://www.eeti.com.tw/pdf/Software%20Programming%20Guide_v2.0.pdf

Signed-off-by: Böszörményi Zoltán <zboszor@pr.hu>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-16 11:31:33 -08:00
Steve Twiss f889beaaab Input: da9063 - report KEY_POWER instead of KEY_SLEEP during power key-press
Stop reporting KEY_SLEEP for a short key-press and report KEY_POWER instead
This change applies to both DA9063 and DA9062 ONKEY drivers.

A previous application used for testing by the developer required a
KEY_SLEEP and KEY_POWER input_report_key event to distinguish between a
short and long key-press of the power key.  This is not the general
convention and the typical solution is for KEY_POWER to be used in both
cases: suspend and S/W power off.

Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-12 21:05:09 -08:00
Sander Vermin bcf5b3deb0 Input: pixcir_i2c - add support for wake and enable gpios
On some devices the wake and enable pins of the pixcir touchscreen
controller are connected to gpios and these must be controlled by the
driver for the device to operate properly.

Signed-off-by: Sander Vermin <sander@vermin.nl>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-04 17:12:07 -08:00
Peter Hutterer e0361b7017 Input: wacom_w8001 - split the touch and pen devices into two devices
These devices have a pen device and a touch device through the same serial
protocol, split it up into two separate devices like we do for USB Wacom
tablets too.

Userspace already matches on the device name so we can't drop it
completely. Compose the same basename based on capabilities and append the
tool type, leading to a name like "Wacom Serial Penabled 2FG Touchscreen
Pen".

Note that this drops BTN_TOOL_FINGER, it is not needed once the tools
are split out (and a touch device with BTN_TOOL_FINGER is interpreted
as touchpad by most of userspace).

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-03 15:58:52 -08:00
Peter Hutterer 5d0a4fe2a9 Input: wacom_w8001 - split pen and touch initialization up
This is preparation work for splitting it up for two event nodes.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-03 15:58:52 -08:00
Peter Hutterer e171735410 Input: wacom_w8001 - handle touch error case correctly
If a device failed at the pen setup and gets a zero reply from the touch
device, we need to return an error. Otherwise we have a device with
nothing but a name and the EV_KEY and EV_ABS bits.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-03 15:58:51 -08:00
Peter Hutterer ec9acda736 Input: wacom_w8001 - set BTN_TOOL_DOUBLETAP if we have 2fg support
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-03 15:58:31 -08:00
Peter Hutterer 86c03f46b9 Input: wacom_w8001 - use __set_bit for evbits
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-03 15:58:31 -08:00
Thierry Reding d352c0e1f3 Input: sparcspkr - use platform_register/unregister_drivers()
These new helpers simplify implementing multi-driver modules and
properly handle failure to register one driver by unregistering all
previously registered drivers.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-02 10:02:50 -08:00
Dmitry Torokhov 0eea505058 Linux 4.4-rc3
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Merge tag 'v4.4-rc3' into next

Merge with Linux 4.4-rc3 to bring in helpers for multiu-driver modules.
2015-12-02 09:33:25 -08:00
Linus Torvalds 31ade3b83e Linux 4.4-rc3 2015-11-29 18:58:26 -08:00
Linus Torvalds c5bc1c9305 Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull nouveau and radeon fixes from Dave Airlie:
 "Just some nouveau and radeon/amdgpu fixes.

  The nouveau fixes look large as the firmware context files are
  regenerated, but the actual change is quite small"

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/radeon: make some dpm errors debug only
  drm/nouveau/volt/pwm/gk104: fix an off-by-one resulting in the voltage not being set
  drm/nouveau/nvif: allow userspace access to its own client object
  drm/nouveau/gr/gf100-: fix oops when calling zbc methods
  drm/nouveau/gr/gf117-: assume no PPC if NV_PGRAPH_GPC_GPM_PD_PES_TPC_ID_MASK is zero
  drm/nouveau/gr/gf117-: read NV_PGRAPH_GPC_GPM_PD_PES_TPC_ID_MASK from correct GPC
  drm/nouveau/gr/gf100-: split out per-gpc address calculation macro
  drm/nouveau/bios: return actual size of the buffer retrieved via _ROM
  drm/nouveau/instmem: protect instobj list with a spinlock
  drm/nouveau/pci: enable c800 magic for some unknown Samsung laptop
  drm/nouveau/pci: enable c800 magic for Clevo P157SM
  drm/radeon: make rv770_set_sw_state failures non-fatal
  drm/amdgpu: move dependency handling out of atomic section v2
  drm/amdgpu: optimize scheduler fence handling
  drm/amdgpu: remove vm->mutex
  drm/amdgpu: add mutex for ba_va->valids/invalids
  drm/amdgpu: adapt vce session create interface changes
  drm/amdgpu: vce use multiple cache surface starting from stoney
  drm/amdgpu: reset vce trap interrupt flag
2015-11-29 17:38:08 -08:00
Linus Torvalds 818aba30b3 RTC fixes for 4.4
Two fixes for the ds1307 alarm and wakeup.
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Merge tag 'rtc-4.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC fixes from Alexandre Belloni:
 "Two fixes for the ds1307 alarm and wakeup"

* tag 'rtc-4.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  rtc: ds1307: fix alarm reading at probe time
  rtc: ds1307: fix kernel splat due to wakeup irq handling
2015-11-29 17:30:41 -08:00
Linus Torvalds 00fd6a7194 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS fix from Ralf Baechle:
 "Just a fix for empty loops that may be removed by non-antique GCC"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: Fix delay loops which may be removed by GCC.
2015-11-29 17:24:35 -08:00
Linus Torvalds d72aee78e9 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k fixes from Geert Uytterhoeven:
 "Summary:

   - Add missing initialization of max_pfn, which is needed to make
     selftests/vm/mlock2-tests succeed,

   - Wire up new mlock2 syscall"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Wire up mlock2
  m68knommu: Add missing initialization of max_pfn and {min,max}_low_pfn
  m68k/mm: sun3 - Add missing initialization of max_pfn and {min,max}_low_pfn
  m68k/mm: m54xx - Add missing initialization of max_pfn
  m68k/mm: motorola - Add missing initialization of max_pfn
2015-11-29 17:18:41 -08:00
Linus Torvalds 04527fdafe Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "Just two changes this time around:

   - wire up the new mlock2 syscall added during the last merge window

   - fix a build problem with certain configurations provoked by making
     CONFIG_OF user selectable"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8454/1: OF implies OF_FLATTREE
  ARM: wire up mlock2 syscall
2015-11-29 17:13:07 -08:00
Linus Torvalds 36511e8607 Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target fixes from Nicholas Bellinger:
 - fix tcm-user backend driver expired cmd time processing (agrover)
 - eliminate kref_put_spinlock_irqsave() for I/O completion (bart)
 - fix iscsi login kthread failure case hung task regression (nab)
 - fix COMPARE_AND_WRITE completion use-after-free race (nab)
 - fix COMPARE_AND_WRITE with SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC non zero
   SGL offset data corruption.  (Jan + Doug)
 - fix >= v4.4-rc1 regression for tcm_qla2xxx enable configfs attribute
   (Himanshu + HCH)

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  target/stat: print full t10_wwn.model buffer
  target: fix COMPARE_AND_WRITE non zero SGL offset data corruption
  qla2xxx: Fix regression introduced by target configFS changes
  kref: Remove kref_put_spinlock_irqsave()
  target: Invoke release_cmd() callback without holding a spinlock
  target: Fix race for SCF_COMPARE_AND_WRITE_POST checking
  iscsi-target: Fix rx_login_comp hang after login failure
  iscsi-target: return -ENOMEM instead of -1 in case of failed kmalloc()
  target/user: Do not set unused fields in tcmu_ops
  target/user: Fix time calc in expired cmd processing
2015-11-29 09:03:57 -08:00
Linus Torvalds 75a29ec1e8 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management fixes from Zhang Rui:
 "Specifics:

 - several fixes and cleanups on Rockchip thermal drivers.

 - add the missing support of RK3368 SoCs in Rockchip driver.

 - small fixes on of-thermal, power_allocator, rcar driver, IMX, and
   QCOM drivers, and also compilation fixes, on thermal.h, when thermal
   is not selected"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
  imx: thermal: use CPU temperature grade info for thresholds
  thermal: fix thermal_zone_bind_cooling_device prototype
  Revert "thermal: qcom_spmi: allow compile test"
  thermal: rcar_thermal: remove redundant operation
  thermal: of-thermal: Reduce log level for message when can't fine thermal zone
  thermal: power_allocator: Use temperature reading from tz
  thermal: rockchip: Support the RK3368 SoCs in thermal driver
  thermal: rockchip: consistently use int for temperatures
  thermal: rockchip: Add the sort mode for adc value increment or decrement
  thermal: rockchip: improve the conversion function
  thermal: rockchip: trivial: fix typo in commit
  thermal: rockchip: better to compatible the driver for different SoCs
  dt-bindings: rockchip-thermal: Support the RK3368 SoCs compatible
2015-11-29 08:58:48 -08:00
David Disseldorp 8f90353950 target/stat: print full t10_wwn.model buffer
Cut 'n paste error saw it only process sizeof(t10_wwn.vendor) characters.

Signed-off-by: David Disseldorp <ddiss@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-11-28 21:23:13 -08:00
Jan Engelhardt d94e5a6135 target: fix COMPARE_AND_WRITE non zero SGL offset data corruption
target_core_sbc's compare_and_write functionality suffers from taking
data at the wrong memory location when writing a CAW request to disk
when a SGL offset is non-zero.

This can happen with loopback and vhost-scsi fabric drivers when
SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC is used to map existing user-space
SGL memory into COMPARE_AND_WRITE READ/WRITE payload buffers.

Given the following sample LIO subtopology,

% targetcli ls /loopback/
o- loopback ................................. [1 Target]
  o- naa.6001405ebb8df14a ....... [naa.60014059143ed2b3]
    o- luns ................................... [2 LUNs]
      o- lun0 ................ [iblock/ram0 (/dev/ram0)]
      o- lun1 ................ [iblock/ram1 (/dev/ram1)]
% lsscsi -g
[3:0:1:0]    disk    LIO-ORG  IBLOCK           4.0   /dev/sdc   /dev/sg3
[3:0:1:1]    disk    LIO-ORG  IBLOCK           4.0   /dev/sdd   /dev/sg4

the following bug can be observed in Linux 4.3 and 4.4~rc1:

% perl -e 'print chr$_ for 0..255,reverse 0..255' >rand
% perl -e 'print "\0" x 512' >zero
% cat rand >/dev/sdd
% sg_compare_and_write -i rand -D zero --lba 0 /dev/sdd
% sg_compare_and_write -i zero -D rand --lba 0 /dev/sdd
Miscompare reported
% hexdump -Cn 512 /dev/sdd
00000000  0f 0e 0d 0c 0b 0a 09 08  07 06 05 04 03 02 01 00
00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
*
00000200

Rather than writing all-zeroes as instructed with the -D file, it
corrupts the data in the sector by splicing some of the original
bytes in. The page of the first entry of cmd->t_data_sg includes the
CDB, and sg->offset is set to a position past the CDB. I presume that
sg->offset is also the right choice to use for subsequent sglist
members.

Signed-off-by: Jan Engelhardt <jengelh@netitwork.de>
Tested-by: Douglas Gilbert <dgilbert@interlog.com>
Cc: <stable@vger.kernel.org> # v3.12+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-11-28 21:22:56 -08:00
Himanshu Madhani 3786dc454f qla2xxx: Fix regression introduced by target configFS changes
this patch fixes following regression

 # targetcli
 [Errno 13] Permission denied: '/sys/kernel/config/target/qla2xxx/21:00:00:0e:1e:08:c7:20/tpgt_1/enable'

Fixes: 2eafd72939 ("target: use per-attribute show and store methods")
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-11-28 19:52:10 -08:00
Bart Van Assche 3a66d7dca1 kref: Remove kref_put_spinlock_irqsave()
The last user is gone. Hence remove this function.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Joern Engel <joern@logfs.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-11-28 19:33:29 -08:00
Bart Van Assche 9ff9d15edd target: Invoke release_cmd() callback without holding a spinlock
This patch fixes the following kernel warning because it avoids that
IRQs are disabled while ft_release_cmd() is invoked (fc_seq_set_resp()
invokes spin_unlock_bh()):

WARNING: CPU: 3 PID: 117 at kernel/softirq.c:150 __local_bh_enable_ip+0xaa/0x110()
Call Trace:
 [<ffffffff814f71eb>] dump_stack+0x4f/0x7b
 [<ffffffff8105e56a>] warn_slowpath_common+0x8a/0xc0
 [<ffffffff8105e65a>] warn_slowpath_null+0x1a/0x20
 [<ffffffff81062b2a>] __local_bh_enable_ip+0xaa/0x110
 [<ffffffff814ff229>] _raw_spin_unlock_bh+0x39/0x40
 [<ffffffffa03a7f94>] fc_seq_set_resp+0xe4/0x100 [libfc]
 [<ffffffffa02e604a>] ft_free_cmd+0x4a/0x90 [tcm_fc]
 [<ffffffffa02e6972>] ft_release_cmd+0x12/0x20 [tcm_fc]
 [<ffffffffa042bd66>] target_release_cmd_kref+0x56/0x90 [target_core_mod]
 [<ffffffffa042caf0>] target_put_sess_cmd+0xc0/0x110 [target_core_mod]
 [<ffffffffa042cb81>] transport_release_cmd+0x41/0x70 [target_core_mod]
 [<ffffffffa042d975>] transport_generic_free_cmd+0x35/0x420 [target_core_mod]

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Acked-by: Joern Engel <joern@logfs.org>
Reviewed-by: Andy Grover <agrover@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-11-28 19:33:23 -08:00
Nicholas Bellinger 057085e522 target: Fix race for SCF_COMPARE_AND_WRITE_POST checking
This patch addresses a race + use after free where the first
stage of COMPARE_AND_WRITE in compare_and_write_callback()
is rescheduled after the backend sends the secondary WRITE,
resulting in second stage compare_and_write_post() callback
completing in target_complete_ok_work() before the first
can return.

Because current code depends on checking se_cmd->se_cmd_flags
after return from se_cmd->transport_complete_callback(),
this results in first stage having SCF_COMPARE_AND_WRITE_POST
set, which incorrectly falls through into second stage CAW
processing code, eventually triggering a NULL pointer
dereference due to use after free.

To address this bug, pass in a new *post_ret parameter into
se_cmd->transport_complete_callback(), and depend upon this
value instead of ->se_cmd_flags to determine when to return
or fall through into ->queue_status() code for CAW.

Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: <stable@vger.kernel.org> # v3.12+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-11-28 19:33:15 -08:00
Nicholas Bellinger ca82c2bded iscsi-target: Fix rx_login_comp hang after login failure
This patch addresses a case where iscsi_target_do_tx_login_io()
fails sending the last login response PDU, after the RX/TX
threads have already been started.

The case centers around iscsi_target_rx_thread() not invoking
allow_signal(SIGINT) before the send_sig(SIGINT, ...) occurs
from the failure path, resulting in RX thread hanging
indefinately on iscsi_conn->rx_login_comp.

Note this bug is a regression introduced by:

  commit e54198657b
  Author: Nicholas Bellinger <nab@linux-iscsi.org>
  Date:   Wed Jul 22 23:14:19 2015 -0700

      iscsi-target: Fix iscsit_start_kthreads failure OOPs

To address this bug, complete ->rx_login_complete for good
measure in the failure path, and immediately return from
RX thread context if connection state did not actually reach
full feature phase (TARG_CONN_STATE_LOGGED_IN).

Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: <stable@vger.kernel.org> # v3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-11-28 19:33:08 -08:00
Luis de Bethencourt 82a819e8fb iscsi-target: return -ENOMEM instead of -1 in case of failed kmalloc()
Smatch complains about returning hard coded error codes, silence this
warning.

drivers/target/iscsi/iscsi_target_parameters.c:211
   iscsi_create_default_params() warn: returning -1 instead of -ENOMEM is sloppy

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-11-28 19:32:59 -08:00
Andy Grover 6ba4bd297d target/user: Do not set unused fields in tcmu_ops
TCMU sets TRANSPORT_FLAG_PASSTHROUGH, so INQUIRY commands will not be
emulated by LIO but passed up to userspace. Therefore TCMU should not
set these, just like pscsi doesn't.

Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-11-28 19:32:52 -08:00
Andy Grover 611e2267b6 target/user: Fix time calc in expired cmd processing
Reversed arguments meant that we were doing nothing for cmds whose deadline
had passed.

Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-11-28 19:32:33 -08:00
Arnd Bergmann aa7d5f18e5 ARM: 8454/1: OF implies OF_FLATTREE
On the ARM architecture, individual platforms select CONFIG_USE_OF if they
need it, but all device tree code is keyed off CONFIG_OF. When building
a platform without DT support and manually enabling CONFIG_OF, we now
get a number of build errors, e.g.

arch/arm/kernel/devtree.c: In function 'setup_machine_fdt':
arch/arm/kernel/devtree.c:215:19: error: implicit declaration of function 'early_init_dt_verify' [-Werror=implicit-function-declaration]

We could now try to separate the use case of booting from DT vs. the
case of using the dynamic implementation, but that seems more complicated
than it can gain us.

This simply changes the ARM Kconfig file to always enable OF_RESERVED_MEM
and OF_EARLY_FLATTREE when CONFIG_OF is enabled. These options add a little
extra code when we just want the dynamic OF implementation, but that seems
like a rather obscure case, and this version solves all CONFIG_OF related
randconfig regressions.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 0166dc11be ("of: make CONFIG_OF user selectable")
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-11-28 23:26:12 +00:00
Linus Torvalds 081f3698e6 PCI updates for v4.4:
NUMA
     Prevent out of bounds access in numa_node override (Mathias Krause)
 
   HiSilicon host bridge driver
     Fix deferred probing (Arnd Bergmann)
 
   Synopsys DesignWare host bridge driver
     Remove incorrect io_base assignment (Stanimir Varbanov)
     Move align_resource function pointer to pci_host_bridge structure (Gabriele Paoloni)
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Merge tag 'pci-v4.4-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:
 "Here are a few fixes I'd like to have in v4.4: a generic one for sysfs
  and three for HiSilicon and DesignWare host controllers.

  Summary:

  NUMA:
   - Prevent out of bounds access in numa_node override (Mathias Krause)

  HiSilicon host bridge driver:
   - Fix deferred probing (Arnd Bergmann)

  Synopsys DesignWare host bridge driver:
   - Remove incorrect io_base assignment (Stanimir Varbanov)
   - Move align_resource function pointer to pci_host_bridge structure
     (Gabriele Paoloni)"

* tag 'pci-v4.4-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  ARM/PCI: Move align_resource function pointer to pci_host_bridge structure
  PCI: hisi: Fix deferred probing
  PCI: designware: Remove incorrect io_base assignment
  PCI: Prevent out of bounds access in numa_node override
2015-11-28 13:07:41 -08:00
Linus Torvalds 8003a57356 NFS client bugfixes for Linux 4.4
Highlights include:
 
 Stable patches:
 - Fix a NFSv4 callback identifier leak that was also causing client crashes
 - Fix NFSv4 callback decoding issues when incoming requests are truncated
 - Don't declare the attribute cache valid when we call nfs_update_inode with
   an empty attribute structure.
 - Resend LAYOUTGET when there is a race that changes the seqid
 
 Bugfixes:
 - Fix a number of issues with the NFSv4.2 CLONE ioctl()
 - Properly set NFS v4.2 NFSDBG_FACILITY
 - NFSv4 referrals are broken; Cleanup FATTR4_WORD0_FS_LOCATIONS after
   decoding success
 - Use sliding delay when LAYOUTGET gets NFS4ERR_DELAY
 - Ensure that attrcache is revalidated after a SETATTR
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Merge tag 'nfs-for-4.4-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client bugfixes from Trond Myklebust:
 "Highlights include:

  Stable patches:
   - Fix a NFSv4 callback identifier leak that was also causing client
     crashes
   - Fix NFSv4 callback decoding issues when incoming requests are
     truncated
   - Don't declare the attribute cache valid when we call
     nfs_update_inode with an empty attribute structure.
   - Resend LAYOUTGET when there is a race that changes the seqid

  Bugfixes:
   - Fix a number of issues with the NFSv4.2 CLONE ioctl()
   - Properly set NFS v4.2 NFSDBG_FACILITY
   - NFSv4 referrals are broken; Cleanup FATTR4_WORD0_FS_LOCATIONS after
     decoding success
   - Use sliding delay when LAYOUTGET gets NFS4ERR_DELAY
   - Ensure that attrcache is revalidated after a SETATTR"

* tag 'nfs-for-4.4-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  nfs4: resend LAYOUTGET when there is a race that changes the seqid
  nfs: if we have no valid attrs, then don't declare the attribute cache valid
  nfs: ensure that attrcache is revalidated after a SETATTR
  nfs4: limit callback decoding to received bytes
  nfs4: start callback_ident at idr 1
  nfs: use sliding delay when LAYOUTGET gets NFS4ERR_DELAY
  NFS4: Cleanup FATTR4_WORD0_FS_LOCATIONS after decoding success
  NFS: Properly set NFS v4.2 NFSDBG_FACILITY
  nfs: reduce the amount of ifdefs for v4.2 in nfs4file.c
  nfs: use btrfs ioctl defintions for clone
  nfs: allow intra-file CLONE
  nfs: offer native ioctls even if CONFIG_COMPAT is set
  nfs: pass on count for CLONE operations
2015-11-27 17:22:47 -08:00
Linus Torvalds d0bc387dbe Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fixes from Wim Van Sebroeck:
 - a null pointer dereference fix for omap_wdt
 - some clock related fixes for pnx4008
 - an underflow fix in wdt_set_timeout() for w83977f_wdt
 - restart fix for tegra wdt
 - Kconfig change to support Freescale Layerscape platforms
 - fix for stopping the mtk_wdt watchdog

* git://www.linux-watchdog.org/linux-watchdog:
  watchdog: mtk_wdt: Use MODE_KEY when stopping the watchdog
  watchdog: Add support for Freescale Layerscape platforms
  watchdog: tegra: Stop watchdog first if restarting
  watchdog: w83977f_wdt: underflow in wdt_set_timeout()
  watchdog: pnx4008: make global wdt_clk static
  watchdog: pnx4008: fix warnings caused by enabling unprepared clock
  watchdog: omap_wdt: fix null pointer dereference
2015-11-27 15:53:23 -08:00
Linus Torvalds 80e0c505b2 Merge branch 'for-linus-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
 "This has Mark Fasheh's patches to fix quota accounting during subvol
  deletion, which we've been working on for a while now.  The patch is
  pretty small but it's a key fix.

  Otherwise it's a random assortment"

* 'for-linus-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  btrfs: fix balance range usage filters in 4.4-rc
  btrfs: qgroup: account shared subtree during snapshot delete
  Btrfs: use btrfs_get_fs_root in resolve_indirect_ref
  btrfs: qgroup: fix quota disable during rescan
  Btrfs: fix race between cleaner kthread and space cache writeout
  Btrfs: fix scrub preventing unused block groups from being deleted
  Btrfs: fix race between scrub and block group deletion
  btrfs: fix rcu warning during device replace
  btrfs: Continue replace when set_block_ro failed
  btrfs: fix clashing number of the enhanced balance usage filter
  Btrfs: fix the number of transaction units needed to remove a block group
  Btrfs: use global reserve when deleting unused block group after ENOSPC
  Btrfs: tests: checking for NULL instead of IS_ERR()
  btrfs: fix signed overflows in btrfs_sync_file
2015-11-27 15:45:45 -08:00
Linus Torvalds 7e4b9359f4 Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security layer fixes from James Morris:
 "A fix for SELinux policy processing (regression introduced by
  commit fa1aa143ac: "selinux: extended permissions for ioctls"), as
  well as a fix for the user-triggerable oops in the Keys code"

* 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  KEYS: Fix handling of stored error in a negatively instantiated user key
  selinux: fix bug in conditional rules handling
2015-11-27 15:27:52 -08:00
Linus Torvalds c64410f3ec ARM: SoC fixes for 4.4-rc
There is a small backlog of at91 patches here, the most significant is
 the addition of some sama5d2 Xplained nodes that were waiting on an MFD include
 file to get merged through another tree. We normally try to sort those out
 before the merge window opens, but the maintainer wasn't aware of that here
 and I decided to merge the changes this time as an exception.
 
 On OMAP a series of audio changes for dra7 missed the merge window but turned
 out to be necessary to fix a boot time imprecise external abort error and to
 get audio working.
 
 The other changes are the usual simple changes, here is a list sorted by
 platform:
 
 at91:
 	removal of a useless defconfig option
 	removal of some legacy DT pieces
 	use of the proper watchdog compatible string
 	update of the MAINTAINERS entries for some Atmel drivers
 drivers/scpi:
 	hide get_scpi_ops in module from built-in code
 imx:
 	add missing .irq_set_type for i.MX GPC irq_chip.
 	fix the wrong spi-num-chipselects settings for Vybrid DSPI devices.
 	fix a merge error in Vybrid dts regarding to ADC device property
 keystone:
         fix the optional PDSP firmware loading
         fix linking RAM setup for QMs
         fix crash with clk_ignore_unused
 mediatek:
 	Enable SCPSYS power domain driver by default
 mvebu:
 	fix QNAP TS219 power-off in dts
 	fix legacy get_irqnr_and_base for dove and orion5x
 omap:
 	fix l4 related boot time errors for dm81xx
 	use lockless cldm/pwrdm api in omap4_boot_secondary
 	remove t410 abort handler to avoid hiding other critical errors
 	mark cpuidle tracepoints as _rcuidle
 	fix module alias for omap-ocp2scp
 pxa:
 	palm: Fix typos in PWM lookup table code
 renesas:
 	missing __initconst annotation for r8a7793_boards_compat_dt
 rockchip:
 	disable mmc-tuning on the veyron-minnie board
 	adding the init state for the over-temperature-protection
 zx:
 	only build power domain code when CONFIG_PM=y
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "There is a small backlog of at91 patches here, the most significant is
  the addition of some sama5d2 Xplained nodes that were waiting on an
  MFD include file to get merged through another tree.

  We normally try to sort those out before the merge window opens, but
  the maintainer wasn't aware of that here and I decided to merge the
  changes this time as an exception.

  On OMAP a series of audio changes for dra7 missed the merge window but
  turned out to be necessary to fix a boot time imprecise external abort
  error and to get audio working.

  The other changes are the usual simple changes, here is a list sorted
  by platform:

  at91:
	removal of a useless defconfig option
	removal of some legacy DT pieces
	use of the proper watchdog compatible string
	update of the MAINTAINERS entries for some Atmel drivers

  drivers/scpi:
	hide get_scpi_ops in module from built-in code

  imx:
	add missing .irq_set_type for i.MX GPC irq_chip.
	fix the wrong spi-num-chipselects settings for Vybrid DSPI devices.
	fix a merge error in Vybrid dts regarding to ADC device property

  keystone:
        fix the optional PDSP firmware loading
        fix linking RAM setup for QMs
        fix crash with clk_ignore_unused

  mediatek:
	Enable SCPSYS power domain driver by default

  mvebu:
	fix QNAP TS219 power-off in dts
	fix legacy get_irqnr_and_base for dove and orion5x

  omap:
	fix l4 related boot time errors for dm81xx
	use lockless cldm/pwrdm api in omap4_boot_secondary
	remove t410 abort handler to avoid hiding other critical errors
	mark cpuidle tracepoints as _rcuidle
	fix module alias for omap-ocp2scp

  pxa:
	palm: Fix typos in PWM lookup table code

  renesas:
	missing __initconst annotation for r8a7793_boards_compat_dt

  rockchip:
	disable mmc-tuning on the veyron-minnie board
	adding the init state for the over-temperature-protection

  zx:
	only build power domain code when CONFIG_PM=y"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (31 commits)
  ARM: OMAP4+: SMP: use lockless clkdm/pwrdm api in omap4_boot_secondary
  arm: omap2+: add missing HWMOD_NO_IDLEST in 81xx hwmod data
  ARM: orion5x: Fix legacy get_irqnr_and_base
  ARM: dove: Fix legacy get_irqnr_and_base
  soc: Mediatek: Enable SCPSYS power domain driver by default
  ARM: dts: vfxxx: Fix dspi[01] spi-num-chipselects.
  ARM: dts: keystone: k2l: fix kernel crash when clk_ignore_unused is not in bootargs
  soc: ti: knav_qmss_queue: Fix linking RAM setup for queue managers
  soc: ti: use request_firmware_direct() as acc firmware is optional
  ARM: imx: add platform irq type setting in gpc
  ARM: dts: vfxxx: Fix erroneous property in esdhc0 node
  ARM: shmobile: r8a7793: proper constness with __initconst
  scpi: hide get_scpi_ops in module from built-in code
  ARM: zx: only build power domain code when CONFIG_PM=y
  ARM: pxa: palm: Fix typos in PWM lookup table code
  ARM: dts: Kirkwood: Fix QNAP TS219 power-off
  ARM: dts: rockchip: Add OTP gpio pinctrl to rk3288 tsadc node
  ARM: dts: rockchip: temporarily remove emmc hs200 speed from rk3288 minnie
  MAINTAINERS: Atmel drivers: change NAND and ISI entries
  ARM: at91/dt: sama5d2 Xplained: add several devices
  ...
2015-11-27 14:22:03 -08:00
Linus Torvalds a3b11c79ad More power management and ACPI fixes for v4.4-rc3
- Fix a recent regression in the cpufreq core causing it to fail
    to clean up sysfs directories properly on cpufreq driver removal
    (Viresh Kumar).
 
  - Fix a build problem in the SCPI support code recently added to
    the arm_big_little cpufreq driver (Punit Agrawal).
 
  - Fix up the recently added CPPC cpufreq frontend to process the
    CPU coordination information provided by the platform firmware
    correctly (Ashwin Chaugule).
 
  - Fix the intel_pstate driver to behave as intended when switched
    over to the "performance" mode via sysfs if hardware-driven
    P-state selection (HWP) is enabled (Alexandra Yates).
 
  - Fix two rounding errors in the intel_pstate driver that sometimes
    cause it to use lower P-states than requested (Prarit Bhargava).
 
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Merge tag 'pm+acpi-4.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more power management and ACPI fixes from Rafael Wysocki:
 "These fix one recent regression (cpufreq core), fix up two features
  added recently (ACPI CPPC support, SCPI support in the arm_big_little
  cpufreq driver) and fix three older bugs in the intel_pstate driver.

  Specifics:

   - Fix a recent regression in the cpufreq core causing it to fail to
     clean up sysfs directories properly on cpufreq driver removal
     (Viresh Kumar).

   - Fix a build problem in the SCPI support code recently added to the
     arm_big_little cpufreq driver (Punit Agrawal).

   - Fix up the recently added CPPC cpufreq frontend to process the CPU
     coordination information provided by the platform firmware
     correctly (Ashwin Chaugule).

   - Fix the intel_pstate driver to behave as intended when switched
     over to the "performance" mode via sysfs if hardware-driven P-state
     selection (HWP) is enabled (Alexandra Yates).

   - Fix two rounding errors in the intel_pstate driver that sometimes
     cause it to use lower P-states than requested (Prarit Bhargava)"

* tag 'pm+acpi-4.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  intel_pstate: Fix "performance" mode behavior with HWP enabled
  cpufreq: SCPI: Depend on SCPI clk driver
  cpufreq: intel_pstate: Fix limits->max_perf rounding error
  cpufreq: intel_pstate: Fix limits->max_policy_pct rounding error
  cpufreq: Always remove sysfs cpuX/cpufreq link on ->remove_dev()
  cpufreq: CPPC: Initialize and check CPUFreq CPU co-ord type correctly
2015-11-27 13:12:42 -08:00