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Author SHA1 Message Date
Greg Kroah-Hartman
f685fc6ab0 Merge b4.19-rc4 into char-misc-next 
We want the bugfixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-09-16 22:41:47 +02:00
Greg Kroah-Hartman
7dc074348e Merge 4.19-rc4 into staging-next 
Handle the merge issues and take the iio and staging driver fixes.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-09-16 22:04:13 +02:00
Marek Marczykowski-Górecki
197ecb3802 xen/balloon: add runtime control for scrubbing ballooned out pages 
Scrubbing pages on initial balloon down can take some time, especially
in nested virtualization case (nested EPT is slow). When HVM/PVH guest is
started with memory= significantly lower than maxmem=, all the extra
pages will be scrubbed before returning to Xen. But since most of them
weren't used at all at that point, Xen needs to populate them first
(from populate-on-demand pool). In nested virt case (Xen inside KVM)
this slows down the guest boot by 15-30s with just 1.5GB needed to be
returned to Xen.

Add runtime parameter to enable/disable it, to allow initially disabling
scrubbing, then enable it back during boot (for example in initramfs).
Such usage relies on assumption that a) most pages ballooned out during
initial boot weren't used at all, and b) even if they were, very few
secrets are in the guest at that time (before any serious userspace
kicks in).
Convert CONFIG_XEN_SCRUB_PAGES to CONFIG_XEN_SCRUB_PAGES_DEFAULT (also
enabled by default), controlling default value for the new runtime
switch.

Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
 2018-09-14 08:51:10 -04:00
Greg Kroah-Hartman
4b55dce8b0 1st round of IIO new device support, features and cleanups in the 4.20 cycle. 
There is a merge commit in here to pull in regmap support for repeatedly
 reading the same register (to read out FIFOs).  Used by the adxl372 driver.
 This will find uses elsewhere once we tidy up various drivers that are
 effectively doing this and relying on not enabling regcache.
 
 New device support
 * Analog devices ADXL372 accelerometer
   - new driver for this accelerometer including fifo and and interrupt support.
     Follow up patches enforce trigger validation, add sampling frequency
     control and filter bandwidth control.  A later series added i2c support
     to the existing SPI support.
 * ST lsm6dsx
   - rework and add support fo the LSM6DSO 6 axis mems sensor.
 * Linear LTC 1660 DAC
   - new driver supporting the LTC 1660 and LTC 1665 SPI DACs.
 * Microchip mcp3911 ADC.
   - new driver for this integrated analog front end and ADC.
 * Qualcomm SPMI PMIC5 adc driver
   - using the spmi framework, new driver and bindings for this ADC.
     Follow up patch adds some missing channels.
 
 Features
 * ad5758
   - support hard reset using a gpio (if provided).
 * mpu6050
   - Regulator support
 * qcom-spmi-adc5
   - Sanity check the channel numbers provided by DT to make sure the
     driver actually knows about them.
 * sc27xx
   - give raw data for channel 20 as it's used on all known boards for
     the headset which needs a custom converstion function.  If it turns
     out someone builds a board where this isn't true we will deal with it
     when it happens.
   - add ADC scale calibration.
 * tsl2772
   - support device tree binding to set the proximity led settings.
   - regulator supprot.
   - binding for apds9930 - trivial addition as register compatible with tsl2772.
 
 Cleanups / Minor fixes
 
 * adxl345
   - supress a static checker warning but explicitly checking if the id
     object is null.
 * bh1750
   - avoid CONFIG_PM_SLEEP checks.
   - SPDX.
 * bme680
   - spelling mistake
   - use clamp rather than open coding.
   - white space and other similar fixes.
   - rename MSK to MASK for clarifty and use GENMASK to specify them.
   - use the FIELD_GET macro rather than a very odd accessor of dividing by
     16 to get the shift.
   - rework to share handing for oversampling of the various channels in a
     unified way.
   - check explicitly for val2 in write_raw function to ensure it is 0.
   - drop some field defines that don't add anything.
 * dpot-adc
   - SPDX
 * envelope detector
   - SPDX
 * isl29501
   - fix an ancient compiler warning mostly because it results in much
     nicer code.
 * max30102
   - mark switch fall throughs.
 * max44000
   - drop an unused variable.
 * max512
   - avoid CONFIG_PM_SLEEP checks.
 * max5481
   - use of_device_get_match_data rather than open coding it.
 * max5821
   - avoid CONFIG_PM_SLEEP checks.
 * max9611
   - explicity cast an enum to an integer to make it totally clear that
     this is intended.
 * mcp4018
   - fix an inconsistent MODULE_LICENSE.
   - use of_device_get_match_data rather than open coding it.
 * mcp4531
   - use of_device_get_match_data rather than open coding it.
   - SPDX
 * mcp4725
   - avoid CONFIG_PM_SLEEP checks.
 * mcp4922
   - Fix error handling and prevent writing a negative to when setting the
     output voltage.
 * ms5611
   - drop deprecated compatible strings without manufacturer from being
     explicitly listed.  They are handled anyway.
   - SPDX
 * multiplexer
   - SPDX
 * qcom-vadc
   - fix inconsistent documentation for reg.
 * ti-dac5571
   - provide and of_match_table.
 
 * treewide
   - update Michael Hennerich's email address.
   - Use %pOFn rather than device_node.name.
 * documentation.
   - tidy up a wrong kernel version for the introduction of the
     position_relative ABI.
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Merge tag 'iio-for-4.20a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

1st round of IIO new device support, features and cleanups in the 4.20 cycle.

There is a merge commit in here to pull in regmap support for repeatedly
reading the same register (to read out FIFOs).  Used by the adxl372 driver.
This will find uses elsewhere once we tidy up various drivers that are
effectively doing this and relying on not enabling regcache.

New device support
* Analog devices ADXL372 accelerometer
  - new driver for this accelerometer including fifo and and interrupt support.
    Follow up patches enforce trigger validation, add sampling frequency
    control and filter bandwidth control.  A later series added i2c support
    to the existing SPI support.
* ST lsm6dsx
  - rework and add support fo the LSM6DSO 6 axis mems sensor.
* Linear LTC 1660 DAC
  - new driver supporting the LTC 1660 and LTC 1665 SPI DACs.
* Microchip mcp3911 ADC.
  - new driver for this integrated analog front end and ADC.
* Qualcomm SPMI PMIC5 adc driver
  - using the spmi framework, new driver and bindings for this ADC.
    Follow up patch adds some missing channels.

Features
* ad5758
  - support hard reset using a gpio (if provided).
* mpu6050
  - Regulator support
* qcom-spmi-adc5
  - Sanity check the channel numbers provided by DT to make sure the
    driver actually knows about them.
* sc27xx
  - give raw data for channel 20 as it's used on all known boards for
    the headset which needs a custom converstion function.  If it turns
    out someone builds a board where this isn't true we will deal with it
    when it happens.
  - add ADC scale calibration.
* tsl2772
  - support device tree binding to set the proximity led settings.
  - regulator supprot.
  - binding for apds9930 - trivial addition as register compatible with tsl2772.

Cleanups / Minor fixes

* adxl345
  - supress a static checker warning but explicitly checking if the id
    object is null.
* bh1750
  - avoid CONFIG_PM_SLEEP checks.
  - SPDX.
* bme680
  - spelling mistake
  - use clamp rather than open coding.
  - white space and other similar fixes.
  - rename MSK to MASK for clarifty and use GENMASK to specify them.
  - use the FIELD_GET macro rather than a very odd accessor of dividing by
    16 to get the shift.
  - rework to share handing for oversampling of the various channels in a
    unified way.
  - check explicitly for val2 in write_raw function to ensure it is 0.
  - drop some field defines that don't add anything.
* dpot-adc
  - SPDX
* envelope detector
  - SPDX
* isl29501
  - fix an ancient compiler warning mostly because it results in much
    nicer code.
* max30102
  - mark switch fall throughs.
* max44000
  - drop an unused variable.
* max512
  - avoid CONFIG_PM_SLEEP checks.
* max5481
  - use of_device_get_match_data rather than open coding it.
* max5821
  - avoid CONFIG_PM_SLEEP checks.
* max9611
  - explicity cast an enum to an integer to make it totally clear that
    this is intended.
* mcp4018
  - fix an inconsistent MODULE_LICENSE.
  - use of_device_get_match_data rather than open coding it.
* mcp4531
  - use of_device_get_match_data rather than open coding it.
  - SPDX
* mcp4725
  - avoid CONFIG_PM_SLEEP checks.
* mcp4922
  - Fix error handling and prevent writing a negative to when setting the
    output voltage.
* ms5611
  - drop deprecated compatible strings without manufacturer from being
    explicitly listed.  They are handled anyway.
  - SPDX
* multiplexer
  - SPDX
* qcom-vadc
  - fix inconsistent documentation for reg.
* ti-dac5571
  - provide and of_match_table.

* treewide
  - update Michael Hennerich's email address.
  - Use %pOFn rather than device_node.name.
* documentation.
  - tidy up a wrong kernel version for the introduction of the
    position_relative ABI.
 2018-09-14 10:38:48 +02:00
Arseny Maslennikov
4c0b6534c9 Documentation/ABI: document /sys/class/net/*/dev_port 
The sysfs field was introduced 4 years ago along with fixes to various
drivers that erroneously used `dev_id' for that purpose, but it was not
properly documented anywhere.
See commit v3.14-rc3-739-g3f85944fe207.

Signed-off-by: Arseny Maslennikov <ar@cs.msu.ru>
Signed-off-by: Doug Ledford <dledford@redhat.com>
 2018-09-13 11:47:52 -04:00
Stephen Hemminger
d765edbb30 vmbus: add driver_override support 
Add support for overriding the default driver for a VMBus device
in the same way that it can be done for PCI devices. This patch
adds the /sys/bus/vmbus/devices/.../driver_override file
and the logic for matching.

This is used by driverctl tool to do driver override.
https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgitlab.com%2Fdriverctl%2Fdriverctl&amp;data=02%7C01%7Ckys%40microsoft.com%7C42e803feb2c544ef6ea908d5fd538878%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636693457619960040&amp;sdata=kEyYHRIjNZCk%2B37moCSqbrZL426YccNQrsWpENcrZdw%3D&amp;reserved=0

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-09-12 09:46:46 +02:00
Vladimir D. Seleznev
3bb756449b PM / hibernate: Documentation: fix image_size default value 
This commit updates the default value of /sys/power/image_size in
the documentation.

Since ac5c24ec1e983313ef0015258fba6f630e54e7cn the `image_size' value is
set to about 2/5 of RAM, according to kernel/power/snapshot.c:

	image_size = ((totalram_pages * 2) / 5) * PAGE_SIZE;

but this change was not reflected everywhere in the documentation.

Signed-off-by: Vladimir D. Seleznev <vseleznv@altlinux.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2018-09-10 12:07:06 +02:00
Florian Fainelli
98cdb48071 net: dsa: Expose tagging protocol to user-space 
There is no way for user-space to know what a given DSA network device's
tagging protocol is. Expose this information through a dsa/tagging
attribute which reflects the tagging protocol currently in use.

This is helpful for configuration (e.g: none behaves dramatically
different wrt. bridges) as well as for packet capture tools when there
is not a proper Ethernet type available.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2018-09-07 14:49:55 -07:00
David S. Miller
36302685f5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-09-04 21:33:03 -07:00
Eugen Hristev
21eab78616 iio: fix position relative kernel version 
Position relative channel type was added in 4.19 kernel version

Fixes: "3055a6cfa04ba" ("iio: Add channel for Position Relative")
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2018-09-02 10:19:14 +01:00
Linus Torvalds
4290d5b9ca xen: fixes for 4.19-rc2 
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Merge tag 'for-linus-4.19b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:

 - minor cleanup avoiding a warning when building with new gcc

 - a patch to add a new sysfs node for Xen frontend/backend drivers to
   make it easier to obtain the state of a pv device

 - two fixes for 32-bit pv-guests to avoid intermediate L1TF vulnerable
   PTEs

* tag 'for-linus-4.19b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  x86/xen: remove redundant variable save_pud
  xen: export device state to sysfs
  x86/pae: use 64 bit atomic xchg function in native_ptep_get_and_clear
  x86/xen: don't write ptes directly in 32-bit PV guests
 2018-08-31 08:45:16 -07:00
Michal Kubecek
9b30049535 ethtool: drop get_settings and set_settings callbacks 
Since [gs]et_settings ethtool_ops callbacks have been deprecated in
February 2016, all in tree NIC drivers have been converted to provide
[gs]et_link_ksettings() and out of tree drivers have had enough time to do
the same.

Drop get_settings() and set_settings() and implement both ETHTOOL_[GS]SET
and ETHTOOL_[GS]LINKSETTINGS only using [gs]et_link_ksettings().

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2018-08-29 19:46:10 -07:00
Joe Jin
076e2cedd6 xen: export device state to sysfs 
Export device state to sysfs to allow for easier get device state.

Signed-off-by: Joe Jin <joe.jin@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
 2018-08-28 17:37:40 -04:00
Jens Axboe
057d3ccf93 Merge branch 'stable/for-jens-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen into for-linus 
Pull Xen block driver fixes from Konrad:

"Fix for flushing out persistent pages at a deterministic rate"

* 'stable/for-jens-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/blkback: remove unused pers_gnts_lock from struct xen_blkif_ring
  xen/blkback: move persistent grants flags to bool
  xen/blkfront: reorder tests in xlblk_init()
  xen/blkfront: cleanup stale persistent grants
  xen/blkback: don't keep persistent grants too long
 2018-08-27 11:27:32 -06:00
Juergen Gross
973e5405f2 xen/blkback: don't keep persistent grants too long 
Persistent grants are allocated until a threshold per ring is being
reached. Those grants won't be freed until the ring is being destroyed
meaning there will be resources kept busy which might no longer be
used.

Instead of freeing only persistent grants until the threshold is
reached add a timestamp and remove all persistent grants not having
been in use for a minute.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
 2018-08-27 12:12:03 -04:00
Linus Torvalds
899fbc33fd platform-drivers-x86 for v4.19-1 
The driver for Silead touchscreen configurations has been renamed
 from silead_dmi to touchscreen_dmi since it starts supporting other
 touchscreens which require some DMI quirks. At the same release cycle
 it gets expanded to cover cases for Chuwi Vi10, ONDA V891W,
 Connect Tablet 9, Onda V820w, and Cube KNote i1101 tablets.
 
 Another bunch of changes is related to Mellanox platform code to allow
 user space to communicate with Mellanox for system control and
 monitoring purposes. The driver notifies user on hotplug device signal
 receiving.
 
 ASUS WMI drivers recognize lid flip action on UX360, and correctly
 toggles airplane mode LED. In addition the keyboard backlight toggle
 gets support.
 
 ThinkPad ACPI driver enables support for calculator key (on at least P52).
 It also has been fixed to support three characters model designators,
 which are used for modern laptops. Earlier the battery, marked as BAT1,
 on ThinkPad laptops has not been configured properly, which is fixed.
 On the opposite the multi-battery configurations now probed correctly.
 
 Dell SMBIOS driver starts working on some Dell servers which do not
 support token interface. The regression with backlight detection has
 also been fixed. In order to support dock mode on some laptops,
 Intel virtual button driver has been fixed. The last but not least
 is the fix to Intel HID driver due to changes in Dell systems that
 prevented to use power button.
 
 The following is an automated git shortlog grouped by driver:
 
 acer-wmi:
  -  Silence "unsupported" message a bit
  -  refactor function has_cap
 
 asus-nb-wmi:
  -  Add keymap entry for lid flip action on UX360
 
 asus-wireless:
  -  Fix uninitialized symbol usage
  -  Toggle airplane mode LED
 
 asus-wmi:
  -  Add keyboard backlight toggle support
  -  Call led hw_changed API on kbd brightness change
 
 dell-laptop:
  -  Fix backlight detection
 
 dell-smbios:
  -  make a function and a pointer static
 
 dell-smbios-base:
  -  Support systems without tokens
 
 dell-smbios-wmi:
  -  make function dell_smbios_wmi_call static
 
 ideapad-laptop:
  -  Add Y520-15IKBM and Y720-15IKBM to no_hw_rfkill
  -  Apply no_hw_rfkill to Y20-15IKBM, too
 
 intel-hid:
  -  Add support for Device Specific Methods
 
 intel_ips:
  -  remove redundant variables slope and offset
 
 intel_pmc_core:
  -  Add CNP SLPS0 debug registers
 
 intel_punit_ipc:
  -  fix build errors
 
 intel-vbtn:
  -  Add support for dock mode detection
 
 mlx-platform:
  -  Fix copy-paste error in mlxplat_init()
  -  Remove unused define
  -  Change mlxreg-io configuration for MSN274x systems
  -  Allow mlxreg-io driver activation for more systems
  -  Add ASIC hotplug device configuration
  -  Add new attribute for mlxreg-io sysfs interfaces
  -  Add mlxreg-fan platform driver activation
  -  Add documentation mlxreg-io sysfs interfaces
  -  Add mlxreg-io platform driver activation
 
 platform/mellanox:
  -  mlxreg-hotplug: Add hotplug hwmon uevent notification
  -  mlxreg-hotplug: Improve mechanism of ASIC health discovery
  -  Use 2-factor allocator calls
  -  Introduce support for Mellanox register access driver
 
 thinkpad_acpi:
  -  Fix multi-battery bug
  -  extend battery quirk coverage
  -  Support battery quirk
  -  Proper model/release matching
  -  Add support for calculator hotkey
 
 toshiba_acpi:
  -  Fix defined but not used build warnings
  -  Update KBD backlight LED on second gen laptops
 
 touchscreen_dmi:
  -  Rename silead_dmi to touchscreen_dmi
  -  Add touchscreen info for the Chuwi Vi10 tablet
  -  Sort entries alphabetically
  -  Rename trekstor entries
  -  Add info for the Cube KNote i1101 tablet
  -  Add info for the Onda V820w tablet
  -  Add info for the "Connect Tablet 9" tablet
  -  Add info for the ONDA V891W Dual OS tablet
 
 wmi:
  -  Do not mix pages and kmalloc
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Merge tag 'platform-drivers-x86-v4.19-1' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform driver updates from Andy Shevchenko:

 - The driver for Silead touchscreen configurations has been renamed
   from silead_dmi to touchscreen_dmi since it starts supporting other
   touchscreens which require some DMI quirks

   It also gets expanded to cover cases for Chuwi Vi10, ONDA V891W,
   Connect Tablet 9, Onda V820w, and Cube KNote i1101 tablets.

 - Another bunch of changes is related to Mellanox platform code to
   allow user space to communicate with Mellanox for system control and
   monitoring purposes. The driver notifies user on hotplug device
   signal receiving.

 - ASUS WMI drivers recognize lid flip action on UX360, and correctly
   toggles airplane mode LED. In addition the keyboard backlight toggle
   gets support.

 - ThinkPad ACPI driver enables support for calculator key (on at least
   P52). It also has been fixed to support three characters model
   designators, which are used for modern laptops. Earlier the battery,
   marked as BAT1, on ThinkPad laptops has not been configured properly,
   which is fixed. On the opposite the multi-battery configurations now
   probed correctly.

 - Dell SMBIOS driver starts working on some Dell servers which do not
   support token interface. The regression with backlight detection has
   also been fixed. In order to support dock mode on some laptops, Intel
   virtual button driver has been fixed. The last but not least is the
   fix to Intel HID driver due to changes in Dell systems that prevented
   to use power button.

* tag 'platform-drivers-x86-v4.19-1' of git://git.infradead.org/linux-platform-drivers-x86: (47 commits)
  platform/x86: acer-wmi: Silence "unsupported" message a bit
  platform/x86: intel_punit_ipc: fix build errors
  platform/x86: ideapad: Add Y520-15IKBM and Y720-15IKBM to no_hw_rfkill
  platform/x86: asus-nb-wmi: Add keymap entry for lid flip action on UX360
  platform/x86: acer-wmi: refactor function has_cap
  platform/x86: thinkpad_acpi: Fix multi-battery bug
  platform/x86: thinkpad_acpi: extend battery quirk coverage
  platform/x86: touchscreen_dmi: Add info for the Cube KNote i1101 tablet
  platform/x86: mlx-platform: Fix copy-paste error in mlxplat_init()
  platform/x86: mlx-platform: Remove unused define
  platform/x86: mlx-platform: Change mlxreg-io configuration for MSN274x systems
  Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces
  platform/x86: mlx-platform: Allow mlxreg-io driver activation for more systems
  platform/x86: mlx-platform: Add ASIC hotplug device configuration
  platform/mellanox: mlxreg-hotplug: Add hotplug hwmon uevent notification
  platform/mellanox: mlxreg-hotplug: Improve mechanism of ASIC health discovery
  platform/x86: mlx-platform: Add mlxreg-fan platform driver activation
  platform/x86: dell-laptop: Fix backlight detection
  platform/x86: toshiba_acpi: Fix defined but not used build warnings
  platform/x86: thinkpad_acpi: Support battery quirk
  ...
 2018-08-22 14:14:15 -07:00
Linus Torvalds
fe6f0ed0da f2fs-for-4.19-rc1 
In this round, we've tuned f2fs to improve general performance by serializing
 block allocation and enhancing discard flows like fstrim which avoids user IO
 contention. And we've added fsync_mode=nobarrier which gives an option to user
 where it skips issuing cache_flush commands to underlying flash storage. And
 there are many bug fixes related to fuzzed images, revoked atomic writes, quota
 ops, and minor direct IO.
 
 Enhancement:
  - add fsync_mode=nobarrier which bypasses cache_flush command
  - enhance the discarding flow which avoids user IOs and issues in LBA order
  - readahead some encrypted blocks during GC
  - enable in-memory inode checksum to verify the blocks if F2FS_CHECK_FS is set
  - enhance nat_bits behavior
  - set -o discard by default
  - set REQ_RAHEAD to bio in ->readpages
 
 Bug fixes:
  - fix a corner case to corrupt atomic_writes revoking flow
  - revisit i_gc_rwsem to fix race conditions
  - fix some dio behaviors captured by xfstests
  - correct handling errors given by quota-related failures
  - add many sanity check flows to avoid fuzz test failures
  - add more error number propagation to their callers
  - fix several corner cases to continue fault injection w/ shutdown loop
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Merge tag 'f2fs-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "In this round, we've tuned f2fs to improve general performance by
  serializing block allocation and enhancing discard flows like fstrim
  which avoids user IO contention. And we've added fsync_mode=nobarrier
  which gives an option to user where it skips issuing cache_flush
  commands to underlying flash storage. And there are many bug fixes
  related to fuzzed images, revoked atomic writes, quota ops, and minor
  direct IO.

  Enhancements:
   - add fsync_mode=nobarrier which bypasses cache_flush command
   - enhance the discarding flow which avoids user IOs and issues in
     LBA order
   - readahead some encrypted blocks during GC
   - enable in-memory inode checksum to verify the blocks if
     F2FS_CHECK_FS is set
   - enhance nat_bits behavior
   - set -o discard by default
   - set REQ_RAHEAD to bio in ->readpages

  Bug fixes:
   - fix a corner case to corrupt atomic_writes revoking flow
   - revisit i_gc_rwsem to fix race conditions
   - fix some dio behaviors captured by xfstests
   - correct handling errors given by quota-related failures
   - add many sanity check flows to avoid fuzz test failures
   - add more error number propagation to their callers
   - fix several corner cases to continue fault injection w/ shutdown
     loop"

* tag 'f2fs-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (89 commits)
  f2fs: readahead encrypted block during GC
  f2fs: avoid fi->i_gc_rwsem[WRITE] lock in f2fs_gc
  f2fs: fix performance issue observed with multi-thread sequential read
  f2fs: fix to skip verifying block address for non-regular inode
  f2fs: rework fault injection handling to avoid a warning
  f2fs: support fault_type mount option
  f2fs: fix to return success when trimming meta area
  f2fs: fix use-after-free of dicard command entry
  f2fs: support discard submission error injection
  f2fs: split discard command in prior to block layer
  f2fs: wake up gc thread immediately when gc_urgent is set
  f2fs: fix incorrect range->len in f2fs_trim_fs()
  f2fs: refresh recent accessed nat entry in lru list
  f2fs: fix avoid race between truncate and background GC
  f2fs: avoid race between zero_range and background GC
  f2fs: fix to do sanity check with block address in main area v2
  f2fs: fix to do sanity check with inline flags
  f2fs: fix to reset i_gc_failures correctly
  f2fs: fix invalid memory access
  f2fs: fix to avoid broken of dnode block list
  ...
 2018-08-22 13:29:39 -07:00
Jaegeuk Kim
853137cef4 f2fs: fix performance issue observed with multi-thread sequential read 
This reverts the commit - "b93f771 - f2fs: remove writepages lock"
to fix the drop in sequential read throughput.

Test: ./tiotest -t 32 -d /data/tio_tmp -f 32 -b 524288 -k 1 -k 3 -L
device: UFS

Before -
read throughput: 185 MB/s
total read requests: 85177 (of these ~80000 are 4KB size requests).
total write requests: 2546 (of these ~2208 requests are written in 512KB).

After -
read throughput: 758 MB/s
total read requests: 2417 (of these ~2042 are 512KB reads).
total write requests: 2701 (of these ~2034 requests are written in 512KB).

Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
 2018-08-20 23:13:42 -07:00
Linus Torvalds
d5acba26bf Char/Misc driver patches for 4.19-rc1 
Here is the bit set of char/misc drivers for 4.19-rc1
 
 There is a lot here, much more than normal, seems like everyone is
 writing new driver subsystems these days...  Anyway, major things here
 are:
 	- new FSI driver subsystem, yet-another-powerpc low-level
 	  hardware bus
 	- gnss, finally an in-kernel GPS subsystem to try to tame all of
 	  the crazy out-of-tree drivers that have been floating around
 	  for years, combined with some really hacky userspace
 	  implementations.  This is only for GNSS receivers, but you
 	  have to start somewhere, and this is great to see.
 Other than that, there are new slimbus drivers, new coresight drivers,
 new fpga drivers, and loads of DT bindings for all of these and existing
 drivers.
 
 Full details of everything is in the shortlog.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the bit set of char/misc drivers for 4.19-rc1

  There is a lot here, much more than normal, seems like everyone is
  writing new driver subsystems these days... Anyway, major things here
  are:

   - new FSI driver subsystem, yet-another-powerpc low-level hardware
     bus

   - gnss, finally an in-kernel GPS subsystem to try to tame all of the
     crazy out-of-tree drivers that have been floating around for years,
     combined with some really hacky userspace implementations. This is
     only for GNSS receivers, but you have to start somewhere, and this
     is great to see.

  Other than that, there are new slimbus drivers, new coresight drivers,
  new fpga drivers, and loads of DT bindings for all of these and
  existing drivers.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (255 commits)
  android: binder: Rate-limit debug and userspace triggered err msgs
  fsi: sbefifo: Bump max command length
  fsi: scom: Fix NULL dereference
  misc: mic: SCIF Fix scif_get_new_port() error handling
  misc: cxl: changed asterisk position
  genwqe: card_base: Use true and false for boolean values
  misc: eeprom: assignment outside the if statement
  uio: potential double frees if __uio_register_device() fails
  eeprom: idt_89hpesx: clean up an error pointer vs NULL inconsistency
  misc: ti-st: Fix memory leak in the error path of probe()
  android: binder: Show extra_buffers_size in trace
  firmware: vpd: Fix section enabled flag on vpd_section_destroy
  platform: goldfish: Retire pdev_bus
  goldfish: Use dedicated macros instead of manual bit shifting
  goldfish: Add missing includes to goldfish.h
  mux: adgs1408: new driver for Analog Devices ADGS1408/1409 mux
  dt-bindings: mux: add adi,adgs1408
  Drivers: hv: vmbus: Cleanup synic memory free path
  Drivers: hv: vmbus: Remove use of slow_virt_to_phys()
  Drivers: hv: vmbus: Reset the channel callback in vmbus_onoffer_rescind()
  ...
 2018-08-18 11:04:51 -07:00
Linus Torvalds
2475c515d4 Staging/IIO patches for 4.19-rc1 
Here are the big staging/iio patches for 4.19-rc1.
 
 Lots of churn here, with tons of cleanups happening in staging drivers,
 a removal of an old crypto driver that no one was using (skein), and the
 addition of some new IIO drivers.  Also added was a "gasket" driver from
 Google that needs loads of work and the erofs filesystem.
 
 Even with adding all of the new drivers and a new filesystem, we are
 only adding about 1000 lines overall to the kernel linecount, which
 shows just how much cleanup happened, and how big the unused crypto
 driver was.
 
 All of these have been in the linux-next tree for a while now with no
 reported issues.
 
 Note, you will have a merge problem with a device tree IIO file and the
 MAINTAINERS file, both resolutions are easy, just take all changed.
 There will be a skein file merge issue as well, but that file got
 deleted so just drop that.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging and IIO updates from Greg KH:
 "Here are the big staging/iio patches for 4.19-rc1.

  Lots of churn here, with tons of cleanups happening in staging
  drivers, a removal of an old crypto driver that no one was using
  (skein), and the addition of some new IIO drivers. Also added was a
  "gasket" driver from Google that needs loads of work and the erofs
  filesystem.

  Even with adding all of the new drivers and a new filesystem, we are
  only adding about 1000 lines overall to the kernel linecount, which
  shows just how much cleanup happened, and how big the unused crypto
  driver was.

  All of these have been in the linux-next tree for a while now with no
  reported issues"

* tag 'staging-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (903 commits)
  staging:rtl8192u: Remove unused macro definitions - Style
  staging:rtl8192u: Add spaces around '+' operator - Style
  staging:rtl8192u: Remove stale comment - Style
  staging: rtl8188eu: remove unused mp_custom_oid.h
  staging: fbtft: Add spaces around / - Style
  staging: fbtft: Erases some repetitive usage of function name - Style
  staging: fbtft: Adjust some empty-line problems - Style
  staging: fbtft: Removes one nesting level to help readability - Style
  staging: fbtft: Changes gamma table to define.
  staging: fbtft: A bit more information on dev_err.
  staging: fbtft: Fixes some alignment issues - Style
  staging: fbtft: Puts macro arguments in parenthesis to avoid precedence issues - Style
  staging: rtl8188eu: remove unused array dB_Invert_Table
  staging: rtl8188eu: remove whitespace, add missing blank line
  staging: rtl8188eu: use is_multicast_ether_addr in rtw_sta_mgt.c
  staging: rtl8188eu: remove whitespace - style
  staging: rtl8188eu: cleanup block comment - style
  staging: rtl8188eu: use is_multicast_ether_addr in rtl8188eu_xmit.c
  staging: rtl8188eu: use is_multicast_ether_addr in recv_linux.c
  staging: rtlwifi: refactor rtl_get_tcb_desc
  ...
 2018-08-18 11:00:00 -07:00
Linus Torvalds
5695d5d197 USB/PHY patches for 4.19-rc1 
Here is the big USB and phy driver patch set for 4.19-rc1.
 
 Nothing huge but there was a lot of work that happened this development
 cycle:
 	- lots of type-c work, with drivers graduating out of staging,
 	  and displayport support being added.
 	- new PHY drivers
 	- the normal collection of gadget driver updates and fixes
 	- code churn to work on the urb handling path, using irqsave()
 	  everywhere in anticipation of making this codepath a lot
 	  simpler in the future.
 	- usbserial driver fixes and reworks
 	- other misc changes
 
 Full details are in the shortlog.
 
 All of these have been in linux-next with no reported issues for a
 while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/PHY updates from Greg KH:
 "Here is the big USB and phy driver patch set for 4.19-rc1.

  Nothing huge but there was a lot of work that happened this
  development cycle:

   - lots of type-c work, with drivers graduating out of staging, and
     displayport support being added.

   - new PHY drivers

   - the normal collection of gadget driver updates and fixes

   - code churn to work on the urb handling path, using irqsave()
     everywhere in anticipation of making this codepath a lot simpler in
     the future.

   - usbserial driver fixes and reworks

   - other misc changes

  All of these have been in linux-next with no reported issues for a
  while"

* tag 'usb-4.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (159 commits)
  USB: serial: pl2303: add a new device id for ATEN
  usb: renesas_usbhs: Kconfig: convert to SPDX identifiers
  usb: dwc3: gadget: Check MaxPacketSize from descriptor
  usb: dwc2: Turn on uframe_sched on "stm32f4x9_fsotg" platforms
  usb: dwc2: Turn on uframe_sched on "amlogic" platforms
  usb: dwc2: Turn on uframe_sched on "his" platforms
  usb: dwc2: Turn on uframe_sched on "bcm" platforms
  usb: dwc2: gadget: ISOC's starting flow improvement
  usb: dwc2: Make dwc2_readl/writel functions endianness-agnostic.
  usb: dwc3: core: Enable AutoRetry feature in the controller
  usb: dwc3: Set default mode for dwc_usb31
  usb: gadget: udc: renesas_usb3: Add register of usb role switch
  usb: dwc2: replace ioread32/iowrite32_rep with dwc2_readl/writel_rep
  usb: dwc2: Modify dwc2_readl/writel functions prototype
  usb: dwc3: pci: Intel Merrifield can be host
  usb: dwc3: pci: Supply device properties via driver data
  arm64: dts: dwc3: description of incr burst type
  usb: dwc3: Enable undefined length INCR burst type
  usb: dwc3: add global soc bus configuration reg0
  usb: dwc3: Describe 'wakeup_work' field of struct dwc3_pci
  ...
 2018-08-18 10:21:49 -07:00
Linus Torvalds
5e2d059b52 powerpc updates for 4.19 
Notable changes:
 
  - A fix for a bug in our page table fragment allocator, where a page table page
    could be freed and reallocated for something else while still in use, leading
    to memory corruption etc. The fix reuses pt_mm in struct page (x86 only) for
    a powerpc only refcount.
 
  - Fixes to our pkey support. Several are user-visible changes, but bring us in
    to line with x86 behaviour and/or fix outright bugs. Thanks to Florian Weimer
    for reporting many of these.
 
  - A series to improve the hvc driver & related OPAL console code, which have
    been seen to cause hardlockups at times. The hvc driver changes in particular
    have been in linux-next for ~month.
 
  - Increase our MAX_PHYSMEM_BITS to 128TB when SPARSEMEM_VMEMMAP=y.
 
  - Remove Power8 DD1 and Power9 DD1 support, neither chip should be in use
    anywhere other than as a paper weight.
 
  - An optimised memcmp implementation using Power7-or-later VMX instructions
 
  - Support for barrier_nospec on some NXP CPUs.
 
  - Support for flushing the count cache on context switch on some IBM CPUs
    (controlled by firmware), as a Spectre v2 mitigation.
 
  - A series to enhance the information we print on unhandled signals to bring it
    into line with other arches, including showing the offending VMA and dumping
    the instructions around the fault.
 
 Thanks to:
   Aaro Koskinen, Akshay Adiga, Alastair D'Silva, Alexey Kardashevskiy, Alexey
   Spirkov, Alistair Popple, Andrew Donnellan, Aneesh Kumar K.V, Anju T Sudhakar,
   Arnd Bergmann, Bartosz Golaszewski, Benjamin Herrenschmidt, Bharat Bhushan,
   Bjoern Noetel, Boqun Feng, Breno Leitao, Bryant G. Ly, Camelia Groza,
   Christophe Leroy, Christoph Hellwig, Cyril Bur, Dan Carpenter, Daniel Klamt,
   Darren Stevens, Dave Young, David Gibson, Diana Craciun, Finn Thain, Florian
   Weimer, Frederic Barrat, Gautham R. Shenoy, Geert Uytterhoeven, Geoff Levand,
   Guenter Roeck, Gustavo Romero, Haren Myneni, Hari Bathini, Joel Stanley,
   Jonathan Neuschäfer, Kees Cook, Madhavan Srinivasan, Mahesh Salgaonkar, Markus
   Elfring, Mathieu Malaterre, Mauro S. M. Rodrigues, Michael Hanselmann, Michael
   Neuling, Michael Schmitz, Mukesh Ojha, Murilo Opsfelder Araujo, Nicholas
   Piggin, Parth Y Shah, Paul Mackerras, Paul Menzel, Ram Pai, Randy Dunlap,
   Rashmica Gupta, Reza Arbab, Rodrigo R. Galvao, Russell Currey, Sam Bobroff,
   Scott Wood, Shilpasri G Bhat, Simon Guo, Souptick Joarder, Stan Johnson,
   Thiago Jung Bauermann, Tyrel Datwyler, Vaibhav Jain, Vasant Hegde, Venkat Rao
   B, zhong jiang.
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Merge tag 'powerpc-4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:
 "Notable changes:

   - A fix for a bug in our page table fragment allocator, where a page
     table page could be freed and reallocated for something else while
     still in use, leading to memory corruption etc. The fix reuses
     pt_mm in struct page (x86 only) for a powerpc only refcount.

   - Fixes to our pkey support. Several are user-visible changes, but
     bring us in to line with x86 behaviour and/or fix outright bugs.
     Thanks to Florian Weimer for reporting many of these.

   - A series to improve the hvc driver & related OPAL console code,
     which have been seen to cause hardlockups at times. The hvc driver
     changes in particular have been in linux-next for ~month.

   - Increase our MAX_PHYSMEM_BITS to 128TB when SPARSEMEM_VMEMMAP=y.

   - Remove Power8 DD1 and Power9 DD1 support, neither chip should be in
     use anywhere other than as a paper weight.

   - An optimised memcmp implementation using Power7-or-later VMX
     instructions

   - Support for barrier_nospec on some NXP CPUs.

   - Support for flushing the count cache on context switch on some IBM
     CPUs (controlled by firmware), as a Spectre v2 mitigation.

   - A series to enhance the information we print on unhandled signals
     to bring it into line with other arches, including showing the
     offending VMA and dumping the instructions around the fault.

  Thanks to: Aaro Koskinen, Akshay Adiga, Alastair D'Silva, Alexey
  Kardashevskiy, Alexey Spirkov, Alistair Popple, Andrew Donnellan,
  Aneesh Kumar K.V, Anju T Sudhakar, Arnd Bergmann, Bartosz Golaszewski,
  Benjamin Herrenschmidt, Bharat Bhushan, Bjoern Noetel, Boqun Feng,
  Breno Leitao, Bryant G. Ly, Camelia Groza, Christophe Leroy, Christoph
  Hellwig, Cyril Bur, Dan Carpenter, Daniel Klamt, Darren Stevens, Dave
  Young, David Gibson, Diana Craciun, Finn Thain, Florian Weimer,
  Frederic Barrat, Gautham R. Shenoy, Geert Uytterhoeven, Geoff Levand,
  Guenter Roeck, Gustavo Romero, Haren Myneni, Hari Bathini, Joel
  Stanley, Jonathan Neuschäfer, Kees Cook, Madhavan Srinivasan, Mahesh
  Salgaonkar, Markus Elfring, Mathieu Malaterre, Mauro S. M. Rodrigues,
  Michael Hanselmann, Michael Neuling, Michael Schmitz, Mukesh Ojha,
  Murilo Opsfelder Araujo, Nicholas Piggin, Parth Y Shah, Paul
  Mackerras, Paul Menzel, Ram Pai, Randy Dunlap, Rashmica Gupta, Reza
  Arbab, Rodrigo R. Galvao, Russell Currey, Sam Bobroff, Scott Wood,
  Shilpasri G Bhat, Simon Guo, Souptick Joarder, Stan Johnson, Thiago
  Jung Bauermann, Tyrel Datwyler, Vaibhav Jain, Vasant Hegde, Venkat
  Rao, zhong jiang"

* tag 'powerpc-4.19-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (234 commits)
  powerpc/mm/book3s/radix: Add mapping statistics
  powerpc/uaccess: Enable get_user(u64, *p) on 32-bit
  powerpc/mm/hash: Remove unnecessary do { } while(0) loop
  powerpc/64s: move machine check SLB flushing to mm/slb.c
  powerpc/powernv/idle: Fix build error
  powerpc/mm/tlbflush: update the mmu_gather page size while iterating address range
  powerpc/mm: remove warning about ‘type’ being set
  powerpc/32: Include setup.h header file to fix warnings
  powerpc: Move `path` variable inside DEBUG_PROM
  powerpc/powermac: Make some functions static
  powerpc/powermac: Remove variable x that's never read
  cxl: remove a dead branch
  powerpc/powermac: Add missing include of header pmac.h
  powerpc/kexec: Use common error handling code in setup_new_fdt()
  powerpc/xmon: Add address lookup for percpu symbols
  powerpc/mm: remove huge_pte_offset_and_shift() prototype
  powerpc/lib: Use patch_site to patch copy_32 functions once cache is enabled
  powerpc/pseries: Fix endianness while restoring of r3 in MCE handler.
  powerpc/fadump: merge adjacent memory ranges to reduce PT_LOAD segements
  powerpc/fadump: handle crash memory ranges array index overflow
  ...
 2018-08-17 11:32:50 -07:00
Linus Torvalds
4e31843f68 pci-v4.19-changes 
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Merge tag 'pci-v4.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull pci updates from Bjorn Helgaas:

 - Decode AER errors with names similar to "lspci" (Tyler Baicar)

 - Expose AER statistics in sysfs (Rajat Jain)

 - Clear AER status bits selectively based on the type of recovery (Oza
   Pawandeep)

 - Honor "pcie_ports=native" even if HEST sets FIRMWARE_FIRST (Alexandru
   Gagniuc)

 - Don't clear AER status bits if we're using the "Firmware-First"
   strategy where firmware owns the registers (Alexandru Gagniuc)

 - Use sysfs_match_string() to simplify ASPM sysfs parsing (Andy
   Shevchenko)

 - Remove unnecessary includes of <linux/pci-aspm.h> (Bjorn Helgaas)

 - Defer DPC event handling to work queue (Keith Busch)

 - Use threaded IRQ for DPC bottom half (Keith Busch)

 - Print AER status while handling DPC events (Keith Busch)

 - Work around IDT switch ACS Source Validation erratum (James
   Puthukattukaran)

 - Emit diagnostics for all cases of PCIe Link downtraining (Links
   operating slower than they're capable of) (Alexandru Gagniuc)

 - Skip VFs when configuring Max Payload Size (Myron Stowe)

 - Reduce Root Port Max Payload Size if necessary when hot-adding a
   device below it (Myron Stowe)

 - Simplify SHPC existence/permission checks (Bjorn Helgaas)

 - Remove hotplug sample skeleton driver (Lukas Wunner)

 - Convert pciehp to threaded IRQ handling (Lukas Wunner)

 - Improve pciehp tolerance of missed events and initially unstable
   links (Lukas Wunner)

 - Clear spurious pciehp events on resume (Lukas Wunner)

 - Add pciehp runtime PM support, including for Thunderbolt controllers
   (Lukas Wunner)

 - Support interrupts from pciehp bridges in D3hot (Lukas Wunner)

 - Mark fall-through switch cases before enabling -Wimplicit-fallthrough
   (Gustavo A. R. Silva)

 - Move DMA-debug PCI init from arch code to PCI core (Christoph
   Hellwig)

 - Fix pci_request_irq() usage of IRQF_ONESHOT when no handler is
   supplied (Heiner Kallweit)

 - Unify PCI and DMA direction #defines (Shunyong Yang)

 - Add PCI_DEVICE_DATA() macro (Andy Shevchenko)

 - Check for VPD completion before checking for timeout (Bert Kenward)

 - Limit Netronome NFP5000 config space size to work around erratum
   (Jakub Kicinski)

 - Set IRQCHIP_ONESHOT_SAFE for PCI MSI irqchips (Heiner Kallweit)

 - Document ACPI description of PCI host bridges (Bjorn Helgaas)

 - Add "pci=disable_acs_redir=" parameter to disable ACS redirection for
   peer-to-peer DMA support (we don't have the peer-to-peer support yet;
   this is just one piece) (Logan Gunthorpe)

 - Clean up devm_of_pci_get_host_bridge_resources() resource allocation
   (Jan Kiszka)

 - Fixup resizable BARs after suspend/resume (Christian König)

 - Make "pci=earlydump" generic (Sinan Kaya)

 - Fix ROM BAR access routines to stay in bounds and check for signature
   correctly (Rex Zhu)

 - Add DMA alias quirk for Microsemi Switchtec NTB (Doug Meyer)

 - Expand documentation for pci_add_dma_alias() (Logan Gunthorpe)

 - To avoid bus errors, enable PASID only if entire path supports
   End-End TLP prefixes (Sinan Kaya)

 - Unify slot and bus reset functions and remove hotplug knowledge from
   callers (Sinan Kaya)

 - Add Function-Level Reset quirks for Intel and Samsung NVMe devices to
   fix guest reboot issues (Alex Williamson)

 - Add function 1 DMA alias quirk for Marvell 88SS9183 PCIe SSD
   Controller (Bjorn Helgaas)

 - Remove Xilinx AXI-PCIe host bridge arch dependency (Palmer Dabbelt)

 - Remove Aardvark outbound window configuration (Evan Wang)

 - Fix Aardvark bridge window sizing issue (Zachary Zhang)

 - Convert Aardvark to use pci_host_probe() to reduce code duplication
   (Thomas Petazzoni)

 - Correct the Cadence cdns_pcie_writel() signature (Alan Douglas)

 - Add Cadence support for optional generic PHYs (Alan Douglas)

 - Add Cadence power management ops (Alan Douglas)

 - Remove redundant variable from Cadence driver (Colin Ian King)

 - Add Kirin MSI support (Xiaowei Song)

 - Drop unnecessary root_bus_nr setting from exynos, imx6, keystone,
   armada8k, artpec6, designware-plat, histb, qcom, spear13xx (Shawn
   Guo)

 - Move link notification settings from DesignWare core to individual
   drivers (Gustavo Pimentel)

 - Add endpoint library MSI-X interfaces (Gustavo Pimentel)

 - Correct signature of endpoint library IRQ interfaces (Gustavo
   Pimentel)

 - Add DesignWare endpoint library MSI-X callbacks (Gustavo Pimentel)

 - Add endpoint library MSI-X test support (Gustavo Pimentel)

 - Remove unnecessary GFP_ATOMIC from Hyper-V "new child" allocation
   (Jia-Ju Bai)

 - Add more devices to Broadcom PAXC quirk (Ray Jui)

 - Work around corrupted Broadcom PAXC config space to enable SMMU and
   GICv3 ITS (Ray Jui)

 - Disable MSI parsing to work around broken Broadcom PAXC logic in some
   devices (Ray Jui)

 - Hide unconfigured functions to work around a Broadcom PAXC defect
   (Ray Jui)

 - Lower iproc log level to reduce console output during boot (Ray Jui)

 - Fix mobiveil iomem/phys_addr_t type usage (Lorenzo Pieralisi)

 - Fix mobiveil missing include file (Lorenzo Pieralisi)

 - Add mobiveil Kconfig/Makefile support (Lorenzo Pieralisi)

 - Fix mvebu I/O space remapping issues (Thomas Petazzoni)

 - Use generic pci_host_bridge in mvebu instead of ARM-specific API
   (Thomas Petazzoni)

 - Whitelist VMD devices with fast interrupt handlers to avoid sharing
   vectors with slow handlers (Keith Busch)

* tag 'pci-v4.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (153 commits)
  PCI/AER: Don't clear AER bits if error handling is Firmware-First
  PCI: Limit config space size for Netronome NFP5000
  PCI/MSI: Set IRQCHIP_ONESHOT_SAFE for PCI-MSI irqchips
  PCI/VPD: Check for VPD access completion before checking for timeout
  PCI: Add PCI_DEVICE_DATA() macro to fully describe device ID entry
  PCI: Match Root Port's MPS to endpoint's MPSS as necessary
  PCI: Skip MPS logic for Virtual Functions (VFs)
  PCI: Add function 1 DMA alias quirk for Marvell 88SS9183
  PCI: Check for PCIe Link downtraining
  PCI: Add ACS Redirect disable quirk for Intel Sunrise Point
  PCI: Add device-specific ACS Redirect disable infrastructure
  PCI: Convert device-specific ACS quirks from NULL termination to ARRAY_SIZE
  PCI: Add "pci=disable_acs_redir=" parameter for peer-to-peer support
  PCI: Allow specifying devices using a base bus and path of devfns
  PCI: Make specifying PCI devices in kernel parameters reusable
  PCI: Hide ACS quirk declarations inside PCI core
  PCI: Delay after FLR of Intel DC P3700 NVMe
  PCI: Disable Samsung SM961/PM961 NVMe before FLR
  PCI: Export pcie_has_flr()
  PCI: mvebu: Drop bogus comment above mvebu_pcie_map_registers()
  ...
 2018-08-16 09:21:54 -07:00
Linus Torvalds
9a76aba02a Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 
Pull networking updates from David Miller:
 "Highlights:

   - Gustavo A. R. Silva keeps working on the implicit switch fallthru
     changes.

   - Support 802.11ax High-Efficiency wireless in cfg80211 et al, From
     Luca Coelho.

   - Re-enable ASPM in r8169, from Kai-Heng Feng.

   - Add virtual XFRM interfaces, which avoids all of the limitations of
     existing IPSEC tunnels. From Steffen Klassert.

   - Convert GRO over to use a hash table, so that when we have many
     flows active we don't traverse a long list during accumluation.

   - Many new self tests for routing, TC, tunnels, etc. Too many
     contributors to mention them all, but I'm really happy to keep
     seeing this stuff.

   - Hardware timestamping support for dpaa_eth/fsl-fman from Yangbo Lu.

   - Lots of cleanups and fixes in L2TP code from Guillaume Nault.

   - Add IPSEC offload support to netdevsim, from Shannon Nelson.

   - Add support for slotting with non-uniform distribution to netem
     packet scheduler, from Yousuk Seung.

   - Add UDP GSO support to mlx5e, from Boris Pismenny.

   - Support offloading of Team LAG in NFP, from John Hurley.

   - Allow to configure TX queue selection based upon RX queue, from
     Amritha Nambiar.

   - Support ethtool ring size configuration in aquantia, from Anton
     Mikaev.

   - Support DSCP and flowlabel per-transport in SCTP, from Xin Long.

   - Support list based batching and stack traversal of SKBs, this is
     very exciting work. From Edward Cree.

   - Busyloop optimizations in vhost_net, from Toshiaki Makita.

   - Introduce the ETF qdisc, which allows time based transmissions. IGB
     can offload this in hardware. From Vinicius Costa Gomes.

   - Add parameter support to devlink, from Moshe Shemesh.

   - Several multiplication and division optimizations for BPF JIT in
     nfp driver, from Jiong Wang.

   - Lots of prepatory work to make more of the packet scheduler layer
     lockless, when possible, from Vlad Buslov.

   - Add ACK filter and NAT awareness to sch_cake packet scheduler, from
     Toke Høiland-Jørgensen.

   - Support regions and region snapshots in devlink, from Alex Vesker.

   - Allow to attach XDP programs to both HW and SW at the same time on
     a given device, with initial support in nfp. From Jakub Kicinski.

   - Add TLS RX offload and support in mlx5, from Ilya Lesokhin.

   - Use PHYLIB in r8169 driver, from Heiner Kallweit.

   - All sorts of changes to support Spectrum 2 in mlxsw driver, from
     Ido Schimmel.

   - PTP support in mv88e6xxx DSA driver, from Andrew Lunn.

   - Make TCP_USER_TIMEOUT socket option more accurate, from Jon
     Maxwell.

   - Support for templates in packet scheduler classifier, from Jiri
     Pirko.

   - IPV6 support in RDS, from Ka-Cheong Poon.

   - Native tproxy support in nf_tables, from Máté Eckl.

   - Maintain IP fragment queue in an rbtree, but optimize properly for
     in-order frags. From Peter Oskolkov.

   - Improvde handling of ACKs on hole repairs, from Yuchung Cheng"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1996 commits)
  bpf: test: fix spelling mistake "REUSEEPORT" -> "REUSEPORT"
  hv/netvsc: Fix NULL dereference at single queue mode fallback
  net: filter: mark expected switch fall-through
  xen-netfront: fix warn message as irq device name has '/'
  cxgb4: Add new T5 PCI device ids 0x50af and 0x50b0
  net: dsa: mv88e6xxx: missing unlock on error path
  rds: fix building with IPV6=m
  inet/connection_sock: prefer _THIS_IP_ to current_text_addr
  net: dsa: mv88e6xxx: bitwise vs logical bug
  net: sock_diag: Fix spectre v1 gadget in __sock_diag_cmd()
  ieee802154: hwsim: using right kind of iteration
  net: hns3: Add vlan filter setting by ethtool command -K
  net: hns3: Set tx ring' tc info when netdev is up
  net: hns3: Remove tx ring BD len register in hns3_enet
  net: hns3: Fix desc num set to default when setting channel
  net: hns3: Fix for phy link issue when using marvell phy driver
  net: hns3: Fix for information of phydev lost problem when down/up
  net: hns3: Fix for command format parsing error in hclge_is_all_function_id_zero
  net: hns3: Add support for serdes loopback selftest
  bnxt_en: take coredump_record structure off stack
  ...
 2018-08-15 15:04:25 -07:00
Linus Torvalds
3860cae64c regulator: Changes for v4.19 
The biggest set of changes in here is the addition of the Qualcomm RPMH
 driver.  As well as the regualtor driver itself being quite large due to
 the usual involved Qualcomm regulator stuff there's also some code
 shared with the arm-soc tree, a bus driver required to communicate with
 the hardware that actually winds up being much larger than the regulator
 driver itself and a LLCC driver that was part of the same signed tag
 used with the arm-soc tree.
 
 Other than that it's a fairly standard and quiet release, highlights
 include:
 
  - Addition of device links from regulator consumers to their
    regulators, helping the core avoid dependency issues during suspend.
  - Support for the entertainingly innovative suspend implementation in
    the BD9571MWV.
  - Support for switch regulators on the PFUZE100, this required two goes
    due to backwards compatibility issues with old DTs that were
    discovered.
  - Support for Freescale PFUZE3001 and SocioNext UniPhier.
  - The aforementioned Qualcomm RPMH driver together with the driver
    changes required to support it.
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Merge tag 'regulator-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "The biggest set of changes in here is the addition of the Qualcomm
  RPMH driver. As well as the regualtor driver itself being quite large
  due to the usual involved Qualcomm regulator stuff there's also some
  code shared with the arm-soc tree, a bus driver required to
  communicate with the hardware that actually winds up being much larger
  than the regulator driver itself and a LLCC driver that was part of
  the same signed tag used with the arm-soc tree.

  Other than that it's a fairly standard and quiet release, highlights
  include:

   - Addition of device links from regulator consumers to their
     regulators, helping the core avoid dependency issues during
     suspend.

   - Support for the entertainingly innovative suspend implementation in
     the BD9571MWV.

   - Support for switch regulators on the PFUZE100, this required two
     goes due to backwards compatibility issues with old DTs that were
     discovered.

   - Support for Freescale PFUZE3001 and SocioNext UniPhier.

   - The aforementioned Qualcomm RPMH driver together with the driver
     changes required to support it"

* tag 'regulator-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (52 commits)
  regulator: add QCOM RPMh regulator driver
  regulator: dt-bindings: add QCOM RPMh regulator bindings
  regulator: samsung: Add SPDX license identifiers
  regulator: maxim: Add SPDX license identifiers
  regulator: bd71837: adobt MFD changes to regulator driver
  regulator: tps65217: Fix NULL pointer dereference on probe
  regulator: Add support for CPCAP regulators on Motorola Xoom devices.
  regulator: Add sw2_sw4 voltage table to cpcap regulator.
  regulator: bd9571mwv: Make symbol 'dev_attr_backup_mode' static
  regulator: pfuze100: add support to en-/disable switch regulators
  regulator: pfuze100: add optional disable switch-regulators binding
  soc: qcom: rmtfs-mem: fix memleak in probe error paths
  soc: qcom: llc-slice: Add missing MODULE_LICENSE()
  drivers: qcom: rpmh: fix unwanted error check for get_tcs_of_type()
  drivers: qcom: rpmh-rsc: fix the loop index check in get_req_from_tcs
  firmware: qcom: scm: add a dummy qcom_scm_assign_mem()
  drivers: qcom: rpmh-rsc: Check cmd_db_ready() to help children
  drivers: qcom: rpmh-rsc: allow active requests from wake TCS
  drivers: qcom: rpmh: add support for batch RPMH request
  drivers: qcom: rpmh: allow requests to be sent asynchronously
  ...
 2018-08-14 12:04:49 -07:00
Linus Torvalds
73ba2fb33c for-4.19/block-20180812 
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Merge tag 'for-4.19/block-20180812' of git://git.kernel.dk/linux-block

Pull block updates from Jens Axboe:
 "First pull request for this merge window, there will also be a
  followup request with some stragglers.

  This pull request contains:

   - Fix for a thundering heard issue in the wbt block code (Anchal
     Agarwal)

   - A few NVMe pull requests:
      * Improved tracepoints (Keith)
      * Larger inline data support for RDMA (Steve Wise)
      * RDMA setup/teardown fixes (Sagi)
      * Effects log suppor for NVMe target (Chaitanya Kulkarni)
      * Buffered IO suppor for NVMe target (Chaitanya Kulkarni)
      * TP4004 (ANA) support (Christoph)
      * Various NVMe fixes

   - Block io-latency controller support. Much needed support for
     properly containing block devices. (Josef)

   - Series improving how we handle sense information on the stack
     (Kees)

   - Lightnvm fixes and updates/improvements (Mathias/Javier et al)

   - Zoned device support for null_blk (Matias)

   - AIX partition fixes (Mauricio Faria de Oliveira)

   - DIF checksum code made generic (Max Gurtovoy)

   - Add support for discard in iostats (Michael Callahan / Tejun)

   - Set of updates for BFQ (Paolo)

   - Removal of async write support for bsg (Christoph)

   - Bio page dirtying and clone fixups (Christoph)

   - Set of bcache fix/changes (via Coly)

   - Series improving blk-mq queue setup/teardown speed (Ming)

   - Series improving merging performance on blk-mq (Ming)

   - Lots of other fixes and cleanups from a slew of folks"

* tag 'for-4.19/block-20180812' of git://git.kernel.dk/linux-block: (190 commits)
  blkcg: Make blkg_root_lookup() work for queues in bypass mode
  bcache: fix error setting writeback_rate through sysfs interface
  null_blk: add lock drop/acquire annotation
  Blk-throttle: reduce tail io latency when iops limit is enforced
  block: paride: pd: mark expected switch fall-throughs
  block: Ensure that a request queue is dissociated from the cgroup controller
  block: Introduce blk_exit_queue()
  blkcg: Introduce blkg_root_lookup()
  block: Remove two superfluous #include directives
  blk-mq: count the hctx as active before allocating tag
  block: bvec_nr_vecs() returns value for wrong slab
  bcache: trivial - remove tailing backslash in macro BTREE_FLAG
  bcache: make the pr_err statement used for ENOENT only in sysfs_attatch section
  bcache: set max writeback rate when I/O request is idle
  bcache: add code comments for bset.c
  bcache: fix mistaken comments in request.c
  bcache: fix mistaken code comments in bcache.h
  bcache: add a comment in super.c
  bcache: avoid unncessary cache prefetch bch_btree_node_get()
  bcache: display rate debug parameters to 0 when writeback is not running
  ...
 2018-08-14 10:23:25 -07:00
Rashmica Gupta
24576a70e7 Documentation: Update documentation on ppc-memtrace 
Signed-off-by: Rashmica Gupta <rashmica.g@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
 2018-08-10 22:12:32 +10:00
Vadim Pasternak
a34e134314 Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces 
The systems of type MSN21xx, MSN201x have a slight difference from the
default reset cause bits description, it uses reset_hotswap_or_halt
instead of reset_hotswap_or_wd. New attribute is documented.

Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
 2018-08-01 17:41:31 -07:00
Greg Kroah-Hartman
45dd7af410 usb: changes for v4.19 
Not a big pull request with only 37 non-merge commits, most of which
 are touching dwc2 (74% of the changes).
 
 The most important changes are dwc2's support for uframe scheduling
 and its endian-agnostic readl/writel wrappers.
 
 From dwc3 side we have a special new glue layer for Synopsys HAPS
 which will help Synopsys running FPGA validation using our upstream
 driver. We also have the beginnings of dual-role support for Intel
 Merrifield platform.
 
 Apart from these, just a series of non-critical changes.
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Merge tag 'usb-for-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: changes for v4.19

Not a big pull request with only 37 non-merge commits, most of which
are touching dwc2 (74% of the changes).

The most important changes are dwc2's support for uframe scheduling
and its endian-agnostic readl/writel wrappers.

From dwc3 side we have a special new glue layer for Synopsys HAPS
which will help Synopsys running FPGA validation using our upstream
driver. We also have the beginnings of dual-role support for Intel
Merrifield platform.

Apart from these, just a series of non-critical changes.
 2018-07-30 10:21:14 +02:00
Stephen Hemminger
7ceb1c3753 Drivers: hv: vmbus: add numa_node to sysfs 
Being able to find the numa_node for a device is useful for userspace
drivers (DPDK) and also for diagnosing performance issues.  This makes
vmbus similar to pci.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-07-29 08:09:56 +02:00
Kieran Bingham
d7af78b924 usb: gadget: uvc: Expose configuration name through video node 
When utilising multiple instantiations of a UVC gadget on a composite
device, there is no clear method to link a particular configuration to
its respective video node.

Provide a means for identifying the correct video node by exposing the
name of the function configuration through sysfs.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
 2018-07-26 13:43:18 +03:00
Maxime Roussin-Bélanger
e01e7eaf37 iio: light: introduce si1133 
e-mail received from Silicon Lab to confirm that the licensing
isn't a problem.

"
Dear Maxime Roussin-Belanger,

The LUX calculation code only works with Si1133.
As long as the software is used with Silicon Lab's sensor product,
I don't see any problem.

Regards,
Tony
"

Signed-off-by: Maxime Roussin-Bélanger <maxime.roussinbelanger@gmail.com>
Reviewed-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2018-07-23 19:18:11 +01:00
Maxime Roussin-Bélanger
c0e4e0fd95 iio: Add modifier for DUV light 
Signed-off-by: Maxime Roussin-Bélanger <maxime.roussinbelanger@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2018-07-23 19:18:10 +01:00
Mathieu Othacehe
1c28799257 iio: light: isl29501: Add support for the ISL29501 ToF sensor. 
This patch adds support for the ISL29501 Time of Flight sensor.

Signed-off-by: Mathieu Othacehe <m.othacehe@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2018-07-23 19:18:10 +01:00
Mathieu Othacehe
c73314e6eb iio: Add channel for Phase 
Add new channel type support for phase.

This channel may be used by Time-of-flight sensors to express the
phase difference between emitted and received signals. Those sensor
will then use the phase shift of return signals to approximate the
distance to objects.

Signed-off-by: Mathieu Othacehe <m.othacehe@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2018-07-21 15:28:14 +01:00
Rajat Jain
12833017e5 PCI/AER: Add sysfs attributes for rootport cumulative stats 
Add sysfs attributes for rootport statistics (that are cumulative of all
the ERR_* messages seen on this PCI hierarchy).

Signed-off-by: Rajat Jain <rajatja@google.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
 2018-07-19 16:19:52 -05:00
Rajat Jain
81aa5206f9 PCI/AER: Add sysfs attributes to provide AER stats and breakdown 
Add sysfs attributes to provide total and breakdown of the AERs seen,
into different type of correctable, fatal and nonfatal errors:

  /sys/bus/pci/devices/<dev>/aer_dev_correctable
  /sys/bus/pci/devices/<dev>/aer_dev_fatal
  /sys/bus/pci/devices/<dev>/aer_dev_nonfatal

Signed-off-by: Rajat Jain <rajatja@google.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
 2018-07-19 16:19:51 -05:00
Michael Callahan
bdca3c87fb block: Track DISCARD statistics and output them in stat and diskstat 
Add tracking of REQ_OP_DISCARD ios to the partition statistics and
append them to the various stat files in /sys as well as
/proc/diskstats.  These are tracked with the same four stats as reads
and writes:

Number of discard ios completed.
Number of discard ios merged
Number of discard sectors completed
Milliseconds spent on discard requests

This is done via adding a new STAT_DISCARD define to genhd.h and then
using it to index that stat field for discard requests.

tj: Refreshed on top of v4.17 and other previous updates.

Signed-off-by: Michael Callahan <michaelcallahan@fb.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Andy Newell <newella@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2018-07-18 08:44:22 -06:00
Geert Uytterhoeven
cf18fd0146
regulator: bd9571mwv: Document "backup_mode" sysfs file 
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Mark Brown <broonie@kernel.org>
 2018-07-18 13:10:15 +01:00
Xiao Guangrong
857a26222f fpga: dfl: afu: add afu sub feature support 
User Accelerated Function Unit sub feature exposes the MMIO region of
the AFU. After valid PR bitstream is programmed and the port is enabled,
then this MMIO region could be accessed.

This patch adds support to enumerate the AFU MMIO region and expose it
to userspace via mmap file operation. Below interfaces are exposed to user:

Sysfs interface:
* /sys/class/fpga_region/<regionX>/<dfl-port.x>/afu_id
  Read-only. Indicate which PR bitstream is programmed to this AFU.

Ioctl interfaces:
* DFL_FPGA_PORT_GET_INFO
  Provide info to userspace on the number of supported region.
  Only UAFU region is supported now.

* DFL_FPGA_PORT_GET_REGION_INFO
  Provide region information, including access permission, region size,
  offset from the start of device fd.

Signed-off-by: Tim Whisonant <tim.whisonant@intel.com>
Signed-off-by: Enno Luebbers <enno.luebbers@intel.com>
Signed-off-by: Shiva Rao <shiva.rao@intel.com>
Signed-off-by: Christopher Rauer <christopher.rauer@intel.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-07-15 13:55:47 +02:00
Wu Hao
e4664c0ee4 fpga: dfl: afu: add header sub feature support 
The port header register set is always present for port, it is mainly
for capability, control and status of the ports that AFU connected to.

This patch implements header sub feature support. Below user interfaces
are created by this patch.

Sysfs interface:
* /sys/class/fpga_region/<regionX>/<dfl-port.x>/id
  Read-only. Port ID.

Ioctl interface:
* DFL_FPGA_PORT_RESET
  Reset the FPGA Port and its AFU.

Signed-off-by: Tim Whisonant <tim.whisonant@intel.com>
Signed-off-by: Enno Luebbers <enno.luebbers@intel.com>
Signed-off-by: Shiva Rao <shiva.rao@intel.com>
Signed-off-by: Christopher Rauer <christopher.rauer@intel.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-07-15 13:55:47 +02:00
Kang Luwei
0a27ff24d5 fpga: dfl: fme: add header sub feature support 
The Header Register set is always present for FPGA Management Engine (FME),
this patch implements init and uinit function for header sub feature and
introduces several read-only sysfs interfaces for the capability and
status.

Sysfs interfaces:
* /sys/class/fpga_region/<regionX>/<dfl-fme.x>/ports_num
  Read-only. Number of ports implemented

* /sys/class/fpga_region/<regionX>/<dfl-fme.x>/bitstream_id
  Read-only. Bitstream (static FPGA region) identifier number. It contains
  the detailed version and other information of this static FPGA region.

* /sys/class/fpga_region/<regionX>/<dfl-fme.x>/bitstream_metadata
  Read-only. Bitstream (static FPGA region) meta data. It contains the
  synthesis date, seed and other information of this static FPGA region.

Signed-off-by: Tim Whisonant <tim.whisonant@intel.com>
Signed-off-by: Enno Luebbers <enno.luebbers@intel.com>
Signed-off-by: Shiva Rao <shiva.rao@intel.com>
Signed-off-by: Christopher Rauer <christopher.rauer@intel.com>
Signed-off-by: Kang Luwei <luwei.kang@intel.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-07-15 13:55:46 +02:00
Wu Hao
41a8b2c564 fpga: region: add compat_id support 
This patch introduces a compat_id pointer member and sysfs interface
for each fpga region, similar as compat_id for fpga manager, it allows
applications to read the per region compat_id for compatibility
checking before other actions on this fpga-region (e.g. PR).

Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-07-15 13:55:44 +02:00
Wu Hao
ecb5fbe299 fpga: mgr: add status for fpga-manager 
This patch adds status sysfs interface for fpga manager, it's a
read only interface which allows user to get fpga manager status,
including full/partial reconfiguration error and other status
information. It adds a status callback to fpga_manager_ops too,
allows each fpga_manager driver to define its own method to
collect latest status from hardware.

The following sysfs file is created:
* /sys/class/fpga_manager/<fpga>/status
  Return status of fpga manager, including reconfiguration errors.

Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-07-15 13:55:44 +02:00
Suzuki K Poulose
c34cc23f1d coresight: tmc: Add configuration support for trace buffer size 
Now that we can dynamically switch between contiguous memory and
SG table depending on the trace buffer size, provide the support
for selecting an appropriate buffer size.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-07-15 13:52:57 +02:00
Jiri Kosina
d90a7a0ec8 x86/bugs, kvm: Introduce boot-time control of L1TF mitigations 
Introduce the 'l1tf=' kernel command line option to allow for boot-time
switching of mitigation that is used on processors affected by L1TF.

The possible values are:

  full
	Provides all available mitigations for the L1TF vulnerability. Disables
	SMT and enables all mitigations in the hypervisors. SMT control via
	/sys/devices/system/cpu/smt/control is still possible after boot.
	Hypervisors will issue a warning when the first VM is started in
	a potentially insecure configuration, i.e. SMT enabled or L1D flush
	disabled.

  full,force
	Same as 'full', but disables SMT control. Implies the 'nosmt=force'
	command line option. sysfs control of SMT and the hypervisor flush
	control is disabled.

  flush
	Leaves SMT enabled and enables the conditional hypervisor mitigation.
	Hypervisors will issue a warning when the first VM is started in a
	potentially insecure configuration, i.e. SMT enabled or L1D flush
	disabled.

  flush,nosmt
	Disables SMT and enables the conditional hypervisor mitigation. SMT
	control via /sys/devices/system/cpu/smt/control is still possible
	after boot. If SMT is reenabled or flushing disabled at runtime
	hypervisors will issue a warning.

  flush,nowarn
	Same as 'flush', but hypervisors will not warn when
	a VM is started in a potentially insecure configuration.

  off
	Disables hypervisor mitigations and doesn't emit any warnings.

Default is 'flush'.

Let KVM adhere to these semantics, which means:

  - 'lt1f=full,force'	: Performe L1D flushes. No runtime control
    			  possible.

  - 'l1tf=full'
  - 'l1tf-flush'
  - 'l1tf=flush,nosmt'	: Perform L1D flushes and warn on VM start if
			  SMT has been runtime enabled or L1D flushing
			  has been run-time enabled
			  
  - 'l1tf=flush,nowarn'	: Perform L1D flushes and no warnings are emitted.
  
  - 'l1tf=off'		: L1D flushes are not performed and no warnings
			  are emitted.

KVM can always override the L1D flushing behavior using its 'vmentry_l1d_flush'
module parameter except when lt1f=full,force is set.

This makes KVM's private 'nosmt' option redundant, and as it is a bit
non-systematic anyway (this is something to control globally, not on
hypervisor level), remove that option.

Add the missing Documentation entry for the l1tf vulnerability sysfs file
while at it.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Jiri Kosina <jkosina@suse.cz>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lkml.kernel.org/r/20180713142323.202758176@linutronix.de
 2018-07-13 16:29:56 +02:00
Alexander Usyskin
3cfaeb3353 mei: expose fw version to sysfs 
The ME FW version is constantly used by detection and update tools.
To improve the reliability and simplify these tools provide
a sysfs interface to access version of the platform ME firmware
in the following format:
<platform>:<major>.<minor>.<milestone>.<build>.
There can be up to three such blocks for different FW components.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-07-03 13:11:20 +02:00
Heikki Krogerus
0e3bb7d689 usb: typec: Add driver for DisplayPort alternate mode 
DisplayPort USB Type-C Alt Mode allows DisplayPort displays
and adapters to be attached to the USB Type-C ports on the
system.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-07-02 17:42:36 +02:00
Heikki Krogerus
8a37d87d72 usb: typec: Bus type for alternate modes 
Introducing a simple bus for the alternate modes. Bus allows
binding drivers to the discovered alternate modes the
partners support.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-07-02 17:42:36 +02:00
Amritha Nambiar
a4fd1f4bab Documentation: Add explanation for XPS using Rx-queue(s) map 
Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2018-07-02 09:06:24 +09:00
David S. Miller
8365da2c05 This round's updates: 
* finally some of the promised HE code, but it turns
    out to be small - but everything kept changing, so
    one part I did in the driver was >30 patches for
    what was ultimately <200 lines of code ... similar
    here for this code.
  * improved scan privacy support - can now specify scan
    flags for randomizing the sequence number as well as
    reducing the probe request element content
  * rfkill cleanups
  * a timekeeping cleanup from Arnd
  * various other cleanups
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Merge tag 'mac80211-next-for-davem-2018-06-29' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Small merge conflict in net/mac80211/scan.c, I preserved
the kcalloc() conversion. -DaveM

Johannes Berg says:

====================
This round's updates:
 * finally some of the promised HE code, but it turns
   out to be small - but everything kept changing, so
   one part I did in the driver was >30 patches for
   what was ultimately <200 lines of code ... similar
   here for this code.
 * improved scan privacy support - can now specify scan
   flags for randomizing the sequence number as well as
   reducing the probe request element content
 * rfkill cleanups
 * a timekeeping cleanup from Arnd
 * various other cleanups
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
 2018-06-30 21:08:12 +09:00
Johan Hovold
10f146639f gnss: add receiver type support 
Add a "type" device attribute and a "GNSS_TYPE" uevent variable which
can be used to determine the type of a GNSS receiver. The currently
identified types reflect the protocol(s) supported by a receiver:

	"NMEA"	NMEA 0183
	"SiRF"	SiRF Binary
	"UBX"	UBX

Note that both SiRF and UBX type receivers typically support a subset of
NMEA 0183 with vendor extensions (e.g. to allow switching to the vendor
protocol).

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-06-28 20:32:51 +09:00
Greg Kroah-Hartman
f62252bf39 First set of IIO new device support, features and cleanups in the 4.19 cycle 
The usual mixed bunch.  Particular good to see is the generic
 touch screen driver.  Will be interesting to see if this works
 for other ADCs without major changes.
 
 Core features
 * Channel types
   - New position relative channel type primarily for touch screen
     sensors to feed the generic touchscreen driver.
 
 New device support
 * ad5586
   - Add support for the AD5311R DAC.
 
 * Generic touch screen driver as an IIO consumer.
   - Note this is in input, but due to dependencies is coming through
     the IIO tree.
   - Specific support for this added to the at91-sama5d2 ADC.
   - Various necessary DT bindings added.
 
 Staging Drops
 * ADIS16060 gyro
   - A device with a very odd interface that was never cleanly supported.
     It's now very difficult to get, so unlikely it'll ever be fixed up.
 
 Cleanups and minor features and fixes
 * core
   - Fix y2038 timestamp issues now the core support is in place.
 * 104-quad-8
   - Provide some defines for magic numbers to help readability.
   - Fix an off by one error in register selection
 * ad7606
   - Put in a missing function parameter name in a prototype.
 * adis16023
   - Use generic sign_extend function rather than local version.
 * adis16240
   - Use generic sign_extend funciton rather than local version.
 * at91-sama5d2
   - Drop dependency on HAS_DMA now this is handled elsewhere.  Will
     improve build test coverage.
   - Add oversampling ratio control.  Note there is a minor ABI change
     here to increase the apparent depth to 14 bits so as to allow
     for transparent provision of different oversampling ratios that
     drop the actual bit depth to 13 or 12 bits.
 * hx711
   - Add a MAINTAINERS entry for this device.
 * inv_mpu6050
   - Replace the timestamp fifo 'special' code with generic timestamp
     handling.
   - Switch to using local store of timestamp divider rather than rate
     as that is more helpful for accurate time measurement.
   - Fix an unaligned access that didn't seem to be causing any trouble.
   - Use the fifo overflow bit to track the overflow status rather than
     a software counter.
   - New timestamping mechanism to deal with missed sample interrupts.
 * stm32-adc
   - Drop HAS_DMA build dependency.
 * sun4i-gpadc
   - Select REGMAP_IRQ a very rarely hit build issue fix.
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Merge tag 'iio-for-4.19a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

First set of IIO new device support, features and cleanups in the 4.19 cycle

The usual mixed bunch.  Particular good to see is the generic
touch screen driver.  Will be interesting to see if this works
for other ADCs without major changes.

Core features
* Channel types
  - New position relative channel type primarily for touch screen
    sensors to feed the generic touchscreen driver.

New device support
* ad5586
  - Add support for the AD5311R DAC.

* Generic touch screen driver as an IIO consumer.
  - Note this is in input, but due to dependencies is coming through
    the IIO tree.
  - Specific support for this added to the at91-sama5d2 ADC.
  - Various necessary DT bindings added.

Staging Drops
* ADIS16060 gyro
  - A device with a very odd interface that was never cleanly supported.
    It's now very difficult to get, so unlikely it'll ever be fixed up.

Cleanups and minor features and fixes
* core
  - Fix y2038 timestamp issues now the core support is in place.
* 104-quad-8
  - Provide some defines for magic numbers to help readability.
  - Fix an off by one error in register selection
* ad7606
  - Put in a missing function parameter name in a prototype.
* adis16023
  - Use generic sign_extend function rather than local version.
* adis16240
  - Use generic sign_extend funciton rather than local version.
* at91-sama5d2
  - Drop dependency on HAS_DMA now this is handled elsewhere.  Will
    improve build test coverage.
  - Add oversampling ratio control.  Note there is a minor ABI change
    here to increase the apparent depth to 14 bits so as to allow
    for transparent provision of different oversampling ratios that
    drop the actual bit depth to 13 or 12 bits.
* hx711
  - Add a MAINTAINERS entry for this device.
* inv_mpu6050
  - Replace the timestamp fifo 'special' code with generic timestamp
    handling.
  - Switch to using local store of timestamp divider rather than rate
    as that is more helpful for accurate time measurement.
  - Fix an unaligned access that didn't seem to be causing any trouble.
  - Use the fifo overflow bit to track the overflow status rather than
    a software counter.
  - New timestamping mechanism to deal with missed sample interrupts.
* stm32-adc
  - Drop HAS_DMA build dependency.
* sun4i-gpadc
  - Select REGMAP_IRQ a very rarely hit build issue fix.
 2018-06-26 07:47:37 +08:00
Thomas Gleixner
05736e4ac1 cpu/hotplug: Provide knobs to control SMT 
Provide a command line and a sysfs knob to control SMT.

The command line options are:

 'nosmt':	Enumerate secondary threads, but do not online them
 		
 'nosmt=force': Ignore secondary threads completely during enumeration
 		via MP table and ACPI/MADT.

The sysfs control file has the following states (read/write):

 'on':		 SMT is enabled. Secondary threads can be freely onlined
 'off':		 SMT is disabled. Secondary threads, even if enumerated
 		 cannot be onlined
 'forceoff':	 SMT is permanentely disabled. Writes to the control
 		 file are rejected.
 'notsupported': SMT is not supported by the CPU

The command line option 'nosmt' sets the sysfs control to 'off'. This
can be changed to 'on' to reenable SMT during runtime.

The command line option 'nosmt=force' sets the sysfs control to
'forceoff'. This cannot be changed during runtime.

When SMT is 'on' and the control file is changed to 'off' then all online
secondary threads are offlined and attempts to online a secondary thread
later on are rejected.

When SMT is 'off' and the control file is changed to 'on' then secondary
threads can be onlined again. The 'off' -> 'on' transition does not
automatically online the secondary threads.

When the control file is set to 'forceoff', the behaviour is the same as
setting it to 'off', but the operation is irreversible and later writes to
the control file are rejected.

When the control status is 'notsupported' then writes to the control file
are rejected.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
 2018-06-21 14:20:58 +02:00
Vadim Pasternak
f193f7985f Documentation/ABI: Add documentation mlxreg-io sysfs interfaces 
Add documentation for mlxreg-io platform driver sysfs interfaces to allow
user space access for system resets control, reset causes monitoring,
programmable devices version reading and device selection control.

Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
 2018-06-19 16:57:21 -07:00
Mauro Carvalho Chehab
6ec71b205d ABI: sysfs-devices-system-cpu: remove a broken reference 
This file doesn't exist anymore:
	Documentation/cpu-freq/user-guide.txt

As the ABI already points to Documentation/cpu-freq, just
remove the broken link and the associated text.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
 2018-06-15 18:10:01 -03:00
Mauro Carvalho Chehab
ec15872daa docs: fix broken references with multiple hints 
The script:
	./scripts/documentation-file-ref-check --fix

Gives multiple hints for broken references on some files.
Manually use the one that applies for some files.

Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Acked-by: James Morris <james.morris@microsoft.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Jonathan Corbet <corbet@lwn.net>
 2018-06-15 18:10:01 -03:00
Peter Meerwald
e529f4d651 rfkill: Correctly document rkill subfolder range as >= 0 in sysfs-class-rfkill 
The first subfolder is rfkill0, hence rfkillX (X >= 0).
Also fix two trivial typos.

Signed-off-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
 2018-06-15 13:35:49 +02:00
Linus Torvalds
f3b5020e16 platform-drivers-x86 for v4.18-1 
Several incremental improvements including new keycodes, new models, new
 quirks, and related documentation. Adds LED platform driver activation
 for Mellanox systems.  Some minor optimizations and cleanups. Includes
 several bug fixes, message silencing, mostly minor.
 
 The following commits were previously merged during the 4.17 RC cycle:
  - 06b8b00b33 platform/x86: asus-wireless: Fix NULL pointer dereference
  - 6ed66c3ce0 platform/x86: Kconfig: Fix dell-laptop dependency chain.
  - 74783c99bf platform/x86: DELL_WMI use depends on instead of select for DELL_SMBIOS
  - cf48bf9eee platform/x86: asus-wmi: Fix NULL pointer dereference
 
 The following is an automated git shortlog grouped by driver:
 
 acer-wmi:
  -  add another KEY_POWER keycode
 
 apple-gmux:
  -  fix gmux_get_client_id()'s return type
 
 asus-laptop:
  -  Simplify getting .drvdata
 
 asus-wireless:
  -  Fix format specifier
 
 dell-laptop:
  -  Fix keyboard backlight timeout on XPS 13 9370
 
 dell-smbios:
  -  Match on www.dell.com in OEM strings too
 
 dell-wmi:
  -  Ignore new rfkill and fn-lock events
  -  Set correct keycode for Fn + left arrow
 
 fujitsu-laptop:
  -  Simplify soft key handling
 
 ideapad-laptop:
  -  Add E42-80 to no_hw_rfkill
  -  Add fn-lock setting
  -  Add MIIX 720-12IKB to no_hw_rfkill
 
 lib/string_helpers:
  -  Add missed declaration of struct task_struct
 
 intel_scu_ipc:
  -  Replace mdelay with usleep_range in intel_scu_ipc_i2c_cntrl
 
 mlx-platform:
  -  Add LED platform driver activation
 
 platform/mellanox:
  -  Add new ODM system types to mlx-platform
  -  mlxreg-hotplug: add extra cycle for hotplug work queue
  -  mlxreg-hotplug: Document fixes for hotplug private data
 
 platform_data/mlxreg:
  -  Document fixes for hotplug device
 
 silead_dmi:
  -  Add entry for Chuwi Hi8 tablet touchscreen
  -  Add touchscreen info for the Onda V891w tablet
  -  Add info for the PoV mobii TAB-P800W (v2.0)
  -  Add touchscreen info for the Jumper EZpad 6 Pro
 
 thinkpad_acpi:
  -  silence false-positive-prone pr_warn
  -  do not report thermal sensor state for tablet mode switch
  -  silence HKEY 0x6032, 0x60f0, 0x6030
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Merge tag 'platform-drivers-x86-v4.18-1' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform driver updates from Darren Hart:
 "Several incremental improvements including new keycodes, new models,
  new quirks, and related documentation. Adds LED platform driver
  activation for Mellanox systems. Some minor optimizations and
  cleanups. Includes several bug fixes, message silencing, mostly minor

  Automated summary:

  acer-wmi:
   -  add another KEY_POWER keycode

  apple-gmux:
   -  fix gmux_get_client_id()'s return type

  asus-laptop:
   -  Simplify getting .drvdata

  asus-wireless:
   -  Fix format specifier

  dell-laptop:
   -  Fix keyboard backlight timeout on XPS 13 9370

  dell-smbios:
   -  Match on www.dell.com in OEM strings too

  dell-wmi:
   -  Ignore new rfkill and fn-lock events
   -  Set correct keycode for Fn + left arrow

  fujitsu-laptop:
   -  Simplify soft key handling

  ideapad-laptop:
   -  Add E42-80 to no_hw_rfkill
   -  Add fn-lock setting
   -  Add MIIX 720-12IKB to no_hw_rfkill

  lib/string_helpers:
   -  Add missed declaration of struct task_struct

  intel_scu_ipc:
   -  Replace mdelay with usleep_range in intel_scu_ipc_i2c_cntrl

  mlx-platform:
   -  Add LED platform driver activation

  platform/mellanox:
   -  Add new ODM system types to mlx-platform
   -  mlxreg-hotplug: add extra cycle for hotplug work queue
   -  mlxreg-hotplug: Document fixes for hotplug private data

  platform_data/mlxreg:
   -  Document fixes for hotplug device

  silead_dmi:
   -  Add entry for Chuwi Hi8 tablet touchscreen
   -  Add touchscreen info for the Onda V891w tablet
   -  Add info for the PoV mobii TAB-P800W (v2.0)
   -  Add touchscreen info for the Jumper EZpad 6 Pro

  thinkpad_acpi:
   -  silence false-positive-prone pr_warn
   -  do not report thermal sensor state for tablet mode switch
   -  silence HKEY 0x6032, 0x60f0, 0x6030"

* tag 'platform-drivers-x86-v4.18-1' of git://git.infradead.org/linux-platform-drivers-x86: (30 commits)
  platform/x86: silead_dmi: Add entry for Chuwi Hi8 tablet touchscreen
  platform/x86: dell-laptop: Fix keyboard backlight timeout on XPS 13 9370
  platform/x86: dell-wmi: Ignore new rfkill and fn-lock events
  platform/x86: mlx-platform: Add LED platform driver activation
  platform/mellanox: Add new ODM system types to mlx-platform
  platform/mellanox: mlxreg-hotplug: add extra cycle for hotplug work queue
  platform/x86: ideapad-laptop: Add E42-80 to no_hw_rfkill
  platform/x86: silead_dmi: Add touchscreen info for the Onda V891w tablet
  platform/x86: silead_dmi: Add info for the PoV mobii TAB-P800W (v2.0)
  platform/x86: silead_dmi: Add touchscreen info for the Jumper EZpad 6 Pro
  platform/x86: asus-wireless: Fix format specifier
  platform/x86: asus-wmi: Fix NULL pointer dereference
  platform/x86: dell-wmi: Set correct keycode for Fn + left arrow
  platform/x86: acer-wmi: add another KEY_POWER keycode
  platform/x86: ideapad-laptop: Add fn-lock setting
  platform/x86: ideapad-laptop: Add MIIX 720-12IKB to no_hw_rfkill
  lib/string_helpers: Add missed declaration of struct task_struct
  platform/x86: DELL_WMI use depends on instead of select for DELL_SMBIOS
  platform/mellanox: mlxreg-hotplug: Document fixes for hotplug private data
  platform_data/mlxreg: Document fixes for hotplug device
  ...
 2018-06-14 16:30:30 +09:00
Linus Torvalds
f7cca14bce rpmsg updates for v4.18 
This migrates rpmsg to use SPDX license headers and fixes a
 use-after-free in SMD.
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Merge tag 'rpmsg-v4.18' of git://github.com/andersson/remoteproc

Pull rpmsg updates from Bjorn Andersson:
 "This migrates rpmsg to use SPDX license headers and fixes a
  use-after-free in SMD"

* tag 'rpmsg-v4.18' of git://github.com/andersson/remoteproc:
  rpmsg: smd: do not use mananged resources for endpoints and channels
  rpmsg: char: Switch to SPDX license identifier
  rpmsg: glink: Switch to SPDX license identifier
  rpmsg: smd: Switch to SPDX license identifier
  rpmsg: virtio_rpmsg_bus: Switch to SPDX license identifier
  rpmsg: Switch to SPDX license identifier
  rpmsg: qcom_smd: Access APCS through mailbox framework
  rpmsg: Add driver_override device attribute for rpmsg_device
 2018-06-11 12:13:55 -07:00
Linus Torvalds
d54d35c501 f2fs-for-4.18-rc1 
In this round, we've mainly focused on discard, aka unmap, control along with
 fstrim for Android-specific usage model. In addition, we've fixed writepage flow
 which returned EAGAIN previously resulting in EIO of fsync(2) due to mapping's
 error state. In order to avoid old MM bug [1], we decided not to use __GFP_ZERO
 for the mapping for node and meta page caches. As always, we've cleaned up many
 places for future fsverity and symbol conflicts.
 
 Enhancement:
  - do discard/fstrim in lower priority considering fs utilization
  - split large discard commands into smaller ones for better responsiveness
  - add more sanity checks to address syzbot reports
  - add a mount option, fsync_mode=nobarrier, which can reduce # of cache flushes
  - clean up symbol namespace with modified function names
  - be strict on block allocation and IO control in corner cases
 
 Bug fix:
  - don't use __GFP_ZERO for mappings
  - fix error reports in writepage to avoid fsync() failure
  - avoid selinux denial on CAP_RESOURCE on resgid/resuid
  - fix some subtle race conditions in GC/atomic writes/shutdown
  - fix overflow bugs in sanity_check_raw_super
  - fix missing bits on get_flags
 
 Clean-up:
  - prepare the generic flow for future fsverity integration
  - fix some broken coding standard
 
 [1] https://lkml.org/lkml/2018/4/8/661
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Merge tag 'f2fs-for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "In this round, we've mainly focused on discard, aka unmap, control
  along with fstrim for Android-specific usage model. In addition, we've
  fixed writepage flow which returned EAGAIN previously resulting in EIO
  of fsync(2) due to mapping's error state. In order to avoid old MM bug
  [1], we decided not to use __GFP_ZERO for the mapping for node and
  meta page caches. As always, we've cleaned up many places for future
  fsverity and symbol conflicts.

  Enhancements:
   - do discard/fstrim in lower priority considering fs utilization
   - split large discard commands into smaller ones for better responsiveness
   - add more sanity checks to address syzbot reports
   - add a mount option, fsync_mode=nobarrier, which can reduce # of cache flushes
   - clean up symbol namespace with modified function names
   - be strict on block allocation and IO control in corner cases

  Bug fixes:
   - don't use __GFP_ZERO for mappings
   - fix error reports in writepage to avoid fsync() failure
   - avoid selinux denial on CAP_RESOURCE on resgid/resuid
   - fix some subtle race conditions in GC/atomic writes/shutdown
   - fix overflow bugs in sanity_check_raw_super
   - fix missing bits on get_flags

  Clean-ups:
   - prepare the generic flow for future fsverity integration
   - fix some broken coding standard"

[1] https://lkml.org/lkml/2018/4/8/661

* tag 'f2fs-for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (79 commits)
  f2fs: fix to clear FI_VOLATILE_FILE correctly
  f2fs: let sync node IO interrupt async one
  f2fs: don't change wbc->sync_mode
  f2fs: fix to update mtime correctly
  fs: f2fs: insert space around that ':' and ', '
  fs: f2fs: add missing blank lines after declarations
  fs: f2fs: changed variable type of offset "unsigned" to "loff_t"
  f2fs: clean up symbol namespace
  f2fs: make set_de_type() static
  f2fs: make __f2fs_write_data_pages() static
  f2fs: fix to avoid accessing cross the boundary
  f2fs: fix to let caller retry allocating block address
  disable loading f2fs module on PAGE_SIZE > 4KB
  f2fs: fix error path of move_data_page
  f2fs: don't drop dentry pages after fs shutdown
  f2fs: fix to avoid race during access gc_thread pointer
  f2fs: clean up with clear_radix_tree_dirty_tag
  f2fs: fix to don't trigger writeback during recovery
  f2fs: clear discard_wake earlier
  f2fs: let discard thread wait a little longer if dev is busy
  ...
 2018-06-11 10:16:13 -07:00
Eugen Hristev
3055a6cfa0 iio: Add channel for Position Relative 
Add new channel type for relative position on a pad.

These type of analog sensor offers the position of a pen
on a touchpad, and is represented as a voltage, which can be
converted to a position on X and Y axis on the pad.
The channel will hand the relative position on the pad in both directions.

The channel can then be consumed by a touchscreen driver or
read as-is for a raw indication of the touchpen on a touchpad.

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2018-06-10 11:55:15 +01:00
Linus Torvalds
eafdca4d70 Staging/IIO patches for 4.18-rc1 
Here is the big staging and IIO driver update for 4.18-rc1.
 
 It was delayed as I wanted to make sure the final driver deletions did
 not cause any major merge issues, and all now looks good.
 
 There are a lot of patches here, just over 1000.  The diffstat summary
 shows the major changes here:
 	1007 files changed, 16828 insertions(+), 227770 deletions(-)
 Because of this, we might be close to shrinking the overall kernel
 source code size for two releases in a row.
 
 There was loads of work in this release cycle, primarily:
 	- tons of ks7010 driver cleanups
 	- lots of mt7621 driver fixes and cleanups
 	- most driver cleanups
 	- wilc1000 fixes and cleanups
 	- lots and lots of IIO driver cleanups and new additions
 	- debugfs cleanups for all staging drivers
 	- lots of other staging driver cleanups and fixes, the shortlog
 	  has the full details.
 
 but the big user-visable things here are the removal of 3 chunks of
 code:
 	- ncpfs and ipx were removed on schedule, no one has cared about
 	  this code since it moved to staging last year, and if it needs
 	  to come back, it can be reverted.
 	- lustre file system is removed.  I've ranted at the lustre
 	  developers about once a year for the past 5 years, with no
 	  real forward progress at all to clean things up and get the
 	  code into the "real" part of the kernel.  Given that the
 	  lustre developers continue to work on an external tree and try
 	  to port those changes to the in-kernel tree every once in a
 	  while, this whole thing really really is not working out at
 	  all.  So I'm deleting it so that the developers can spend the
 	  time working in their out-of-tree location and get things
 	  cleaned up properly to get merged into the tree correctly at a
 	  later date.
 
 Because of these file removals, you will have merge issues on some of
 these files (2 in the ipx code, 1 in the ncpfs code, and 1 in the
 atomisp driver).  Just delete those files, it's a simple merge :)
 
 All of this has been in linux-next for a while with no reported
 problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging/IIO updates from Greg KH:
 "Here is the big staging and IIO driver update for 4.18-rc1.

  It was delayed as I wanted to make sure the final driver deletions did
  not cause any major merge issues, and all now looks good.

  There are a lot of patches here, just over 1000. The diffstat summary
  shows the major changes here:

	1007 files changed, 16828 insertions(+), 227770 deletions(-)

  Because of this, we might be close to shrinking the overall kernel
  source code size for two releases in a row.

  There was loads of work in this release cycle, primarily:

   - tons of ks7010 driver cleanups

   - lots of mt7621 driver fixes and cleanups

   - most driver cleanups

   - wilc1000 fixes and cleanups

   - lots and lots of IIO driver cleanups and new additions

   - debugfs cleanups for all staging drivers

   - lots of other staging driver cleanups and fixes, the shortlog has
     the full details.

  but the big user-visable things here are the removal of 3 chunks of
  code:

   - ncpfs and ipx were removed on schedule, no one has cared about this
     code since it moved to staging last year, and if it needs to come
     back, it can be reverted.

   - lustre file system is removed.

     I've ranted at the lustre developers about once a year for the past
     5 years, with no real forward progress at all to clean things up
     and get the code into the "real" part of the kernel.

     Given that the lustre developers continue to work on an external
     tree and try to port those changes to the in-kernel tree every once
     in a while, this whole thing really really is not working out at
     all. So I'm deleting it so that the developers can spend the time
     working in their out-of-tree location and get things cleaned up
     properly to get merged into the tree correctly at a later date.

  Because of these file removals, you will have merge issues on some of
  these files (2 in the ipx code, 1 in the ncpfs code, and 1 in the
  atomisp driver). Just delete those files, it's a simple merge :)

  All of this has been in linux-next for a while with no reported
  problems"

* tag 'staging-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1011 commits)
  staging: ipx: delete it from the tree
  ncpfs: remove uapi .h files
  ncpfs: remove Documentation
  ncpfs: remove compat functionality
  staging: ncpfs: delete it
  staging: lustre: delete the filesystem from the tree.
  staging: vc04_services: no need to save the log debufs dentries
  staging: vc04_services: vchiq_debugfs_log_entry can be a void *
  staging: vc04_services: remove struct vchiq_debugfs_info
  staging: vc04_services: move client dbg directory into static variable
  staging: vc04_services: remove odd vchiq_debugfs_top() wrapper
  staging: vc04_services: no need to check debugfs return values
  staging: mt7621-gpio: reorder includes alphabetically
  staging: mt7621-gpio: change gc_map to don't use pointers
  staging: mt7621-gpio: use GPIOF_DIR_OUT and GPIOF_DIR_IN macros instead of custom values
  staging: mt7621-gpio: change 'to_mediatek_gpio' to make just a one line return
  staging: mt7621-gpio: dt-bindings: update documentation for #interrupt-cells property
  staging: mt7621-gpio: update #interrupt-cells for the gpio node
  staging: mt7621-gpio: dt-bindings: complete documentation for the gpio
  staging: mt7621-dts: add missing properties to gpio node
  ...
 2018-06-09 10:32:39 -07:00
Linus Torvalds
7d3bf613e9 libnvdimm for 4.18 
* DAX broke a fundamental assumption of truncate of file mapped pages.
   The truncate path assumed that it is safe to disconnect a pinned page
   from a file and let the filesystem reclaim the physical block. With DAX
   the page is equivalent to the filesystem block. Introduce
   dax_layout_busy_page() to enable filesystems to wait for pinned DAX
   pages to be released. Without this wait a filesystem could allocate
   blocks under active device-DMA to a new file.
 
 * DAX arranges for the block layer to be bypassed and uses
   dax_direct_access() + copy_to_iter() to satisfy read(2) calls.
   However, the memcpy_mcsafe() facility is available through the pmem
   block driver. In order to safely handle media errors, via the DAX
   block-layer bypass, introduce copy_to_iter_mcsafe().
 
 * Fix cache management policy relative to the ACPI NFIT Platform
   Capabilities Structure to properly elide cache flushes when they are not
   necessary. The table indicates whether CPU caches are power-fail
   protected. Clarify that a deep flush is always performed on
   REQ_{FUA,PREFLUSH} requests.
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Merge tag 'libnvdimm-for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Pull libnvdimm updates from Dan Williams:
 "This adds a user for the new 'bytes-remaining' updates to
  memcpy_mcsafe() that you already received through Ingo via the
  x86-dax- for-linus pull.

  Not included here, but still targeting this cycle, is support for
  handling memory media errors (poison) consumed via userspace dax
  mappings.

  Summary:

   - DAX broke a fundamental assumption of truncate of file mapped
     pages. The truncate path assumed that it is safe to disconnect a
     pinned page from a file and let the filesystem reclaim the physical
     block. With DAX the page is equivalent to the filesystem block.
     Introduce dax_layout_busy_page() to enable filesystems to wait for
     pinned DAX pages to be released. Without this wait a filesystem
     could allocate blocks under active device-DMA to a new file.

   - DAX arranges for the block layer to be bypassed and uses
     dax_direct_access() + copy_to_iter() to satisfy read(2) calls.
     However, the memcpy_mcsafe() facility is available through the pmem
     block driver. In order to safely handle media errors, via the DAX
     block-layer bypass, introduce copy_to_iter_mcsafe().

   - Fix cache management policy relative to the ACPI NFIT Platform
     Capabilities Structure to properly elide cache flushes when they
     are not necessary. The table indicates whether CPU caches are
     power-fail protected. Clarify that a deep flush is always performed
     on REQ_{FUA,PREFLUSH} requests"

* tag 'libnvdimm-for-4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (21 commits)
  dax: Use dax_write_cache* helpers
  libnvdimm, pmem: Do not flush power-fail protected CPU caches
  libnvdimm, pmem: Unconditionally deep flush on *sync
  libnvdimm, pmem: Complete REQ_FLUSH => REQ_PREFLUSH
  acpi, nfit: Remove ecc_unit_size
  dax: dax_insert_mapping_entry always succeeds
  libnvdimm, e820: Register all pmem resources
  libnvdimm: Debug probe times
  linvdimm, pmem: Preserve read-only setting for pmem devices
  x86, nfit_test: Add unit test for memcpy_mcsafe()
  pmem: Switch to copy_to_iter_mcsafe()
  dax: Report bytes remaining in dax_iomap_actor()
  dax: Introduce a ->copy_to_iter dax operation
  uio, lib: Fix CONFIG_ARCH_HAS_UACCESS_MCSAFE compilation
  xfs, dax: introduce xfs_break_dax_layouts()
  xfs: prepare xfs_break_layouts() for another layout type
  xfs: prepare xfs_break_layouts() to be called with XFS_MMAPLOCK_EXCL
  mm, fs, dax: handle layout changes to pinned dax mappings
  mm: fix __gup_device_huge vs unmap
  mm: introduce MEMORY_DEVICE_FS_DAX and CONFIG_DEV_PAGEMAP_OPS
  ...
 2018-06-08 17:21:52 -07:00
Linus Torvalds
f4e70c2e5f MTD changes: 
Core changes:
   - Add a sysfs attribute to expose available OOB size
 
   Driver changes:
   - Remove HAS_DMA dependency on various drivers
   - Use dev_get_drvdata() instead of platform_get_drvdata() in docg3
   - Replace msleep by usleep_range() in the dataflash driver
   - Avoid VLA usage in nftl layers
   - Remove useless .owner assignment in pismo
   - Fix various issues in the CFI driver
   - Improve TRX partition handling expose a DT compat for this part
     parser
   - Clarify OFFSET_CONTINUOUS meaning
 
 NAND changes:
   Core changes:
   - Add Miquel as a NAND maintainer
   - Add access mode to the nand_page_io_req struct
   - Fix kernel-doc in rawnand.h
   - Support bit-wise majority to recover from corrupted ONFI parameter
     pages
   - Stop checking FAIL bit after a SET_FEATURES, as documented in the
     ONFI spec
 
   Raw NAND Driver changes:
   - Fix and cleanup the error path of many NAND controller drivers
   - GPMI:
     * Cleanup/simplification of a few aspects in the driver
     * Take ECC setup specified in the DT into account
   - sunxi: remove support for GPIO-based R/B polling
   - MTK:
     * Use of_device_get_match_data() instead of of_match_device()
     * Add an entry in MAINTAINERS for this driver
     * Fix nand-ecc-step-size and nand-ecc-strength description in the DT
       bindings doc
   - fsl_ifc: fix ->cmdfunc() to read more than one ONFI parameter page
 
   OneNAND driver changes:
   - samsung: use dev_get_drvdata() instead of platform_get_drvdata()
 
 SPI NOR changes:
   Core changes:
   - Add support for a bunch of SPI NOR chips
   - Clear EAR reg when switching to 3-byte addressing mode on Winbond
     chips
 
   SPI NOR controller driver changes:
   - cadence: Add DMA support for direct mode reads
   - hisi: Prefix a few functions with hisi_
   - intel:
     * Mark the driver as "dangerous" in Kconfig
     * Fix atomic sequence handling
     * Pass a 40us delay (instead of 0us) to readl_poll_timeout()
   - fsl:
     * fix a typo in a function name
     * add support for IP variants embedded in the ls2080a and ls1080a
       SoCs
   - stm32: request exclusive control of the reset line
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Merge tag 'mtd/for-4.18' of git://git.infradead.org/linux-mtd

Pull MTD updates from Boris Brezillon:
 "Core changes:
   - Add a sysfs attribute to expose available OOB size

  Driver changes:
   - Remove HAS_DMA dependency on various drivers
   - Use dev_get_drvdata() instead of platform_get_drvdata() in docg3
   - Replace msleep by usleep_range() in the dataflash driver
   - Avoid VLA usage in nftl layers
   - Remove useless .owner assignment in pismo
   - Fix various issues in the CFI driver
   - Improve TRX partition handling expose a DT compat for this part
     parser
   - Clarify OFFSET_CONTINUOUS meaning

  NAND core changes:
   - Add Miquel as a NAND maintainer
   - Add access mode to the nand_page_io_req struct
   - Fix kernel-doc in rawnand.h
   - Support bit-wise majority to recover from corrupted ONFI parameter
     pages
   - Stop checking FAIL bit after a SET_FEATURES, as documented in the
     ONFI spec

  Raw NAND Driver changes:
   - Fix and cleanup the error path of many NAND controller drivers
   - GPMI:
      + Cleanup/simplification of a few aspects in the driver
      + Take ECC setup specified in the DT into account
   - sunxi: remove support for GPIO-based R/B polling
   - MTK:
      + Use of_device_get_match_data() instead of of_match_device()
      + Add an entry in MAINTAINERS for this driver
      + Fix nand-ecc-step-size and nand-ecc-strength description in the
        DT bindings doc
   - fsl_ifc: fix ->cmdfunc() to read more than one ONFI parameter page

  OneNAND driver changes:
   - samsung: use dev_get_drvdata() instead of platform_get_drvdata()

  SPI NOR core changes:
   - Add support for a bunch of SPI NOR chips
   - Clear EAR reg when switching to 3-byte addressing mode on Winbond
     chips

  SPI NOR controller driver changes:
   - cadence: Add DMA support for direct mode reads
   - hisi: Prefix a few functions with hisi_
   - intel:
      + Mark the driver as "dangerous" in Kconfig
      + Fix atomic sequence handling
      + Pass a 40us delay (instead of 0us) to readl_poll_timeout()
   - fsl:
      + fix a typo in a function name
      + add support for IP variants embedded in the ls2080a and ls1080a
        SoCs
   - stm32: request exclusive control of the reset line"

* tag 'mtd/for-4.18' of git://git.infradead.org/linux-mtd: (66 commits)
  mtd: nand: Pass mode information to nand_page_io_req
  mtd: cfi_cmdset_0002: Change erase one block to enable XIP once
  mtd: cfi_cmdset_0002: Change erase functions to check chip good only
  mtd: cfi_cmdset_0002: Change erase functions to retry for error
  mtd: cfi_cmdset_0002: Change definition naming to retry write operation
  mtd: cfi_cmdset_0002: Change write buffer to check correct value
  mtd: cmdlinepart: Update comment for introduction of OFFSET_CONTINUOUS
  mtd: bcm47xxpart: add of_match_table with a new DT binding
  dt-bindings: mtd: document Broadcom's BCM47xx partitions
  mtd: spi-nor: Add support for EN25QH32
  mtd: spi-nor: Add support for is25wp series chips
  mtd: spi-nor: Add Winbond w25q32jv support
  mtd: spi-nor: fsl-quadspi: add support for ls2080a/ls1080a
  mtd: spi-nor: stm32-quadspi: explicitly request exclusive reset control
  mtd: spi-nor: intel: provide a range for poll_timout
  mtd: spi-nor: fsl-quadspi: fix api naming typo _init_ahb_read
  mtd: spi-nor: intel-spi: Explicitly mark the driver as dangerous in Kconfig
  mtd: spi-nor: intel-spi: Fix atomic sequence handling
  mtd: rawnand: Do not check FAIL bit when executing a SET_FEATURES op
  mtd: rawnand: use bit-wise majority to recover the ONFI param page
  ...
 2018-06-08 10:39:20 -07:00
Linus Torvalds
00d535a386 Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 
Pull integrity updates from James Morris:
 "From Mimi:

   - add run time support for specifying additional security xattrs
     included in the security.evm HMAC/signature

   - some code clean up and bug fixes"

* 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  EVM: unlock on error path in evm_read_xattrs()
  EVM: prevent array underflow in evm_write_xattrs()
  EVM: Fix null dereference on xattr when xattr fails to allocate
  EVM: fix memory leak of temporary buffer 'temp'
  IMA: use list_splice_tail_init_rcu() instead of its open coded variant
  ima: use match_string() helper
  ima: fix updating the ima_appraise flag
  ima: based on policy verify firmware signatures (pre-allocated buffer)
  ima: define a new policy condition based on the filesystem name
  EVM: Allow runtime modification of the set of verified xattrs
  EVM: turn evm_config_xattrnames into a list
  integrity: Add an integrity directory in securityfs
  ima: Remove unused variable ima_initialized
  ima: Unify logging
  ima: Reflect correct permissions for policy
 2018-06-07 15:40:37 -07:00
Linus Torvalds
3036bc4536 media updates for v4.18-rc1 
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Merge tag 'media/v4.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - remove of atomisp driver from staging, as nobody would have time to
   dedicate huge efforts to fix all the problems there. Also, we have a
   feeling that the driver may not even run the way it is.

 - move Zoran driver to staging, in order to be either fixed to use VB2
   and the proper media kAPIs or to be removed

 - remove videobuf-dvb driver, with is unused for a while

 - some V4L2 documentation fixes/improvements

 - new sensor drivers: imx258 and ov7251

 - a new driver was added to allow using I2C transparent drivers

 - several improvements at the ddbridge driver

 - several improvements at the ISDB pt1 driver, making it more coherent
   with the DVB framework

 - added a new platform driver for MIPI CSI-2 RX: cadence

 - now, all media drivers can be compiled on x86 with COMPILE_TEST

 - almost all media drivers now build on non-x86 architectures with
   COMPILE_TEST

 - lots of other random stuff: cleanups, support for new board models,
   bug fixes, etc

* tag 'media/v4.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (464 commits)
  media: omap2: fix compile-testing with FB_OMAP2=m
  media: media/radio/Kconfig: add back RADIO_ISA
  media: v4l2-ioctl.c: fix missing unlock in __video_do_ioctl()
  media: pxa_camera: ignore -ENOIOCTLCMD from v4l2_subdev_call for s_power
  media: arch: sh: migor: Fix TW9910 PDN gpio
  media: staging: tegra-vde: Reset VDE regardless of memory client resetting failure
  media: marvel-ccic: mmp: select VIDEOBUF2_VMALLOC/DMA_CONTIG
  media: marvel-ccic: allow ccic and mmp drivers to coexist
  media: uvcvideo: Prevent setting unavailable flags
  media: ddbridge: conditionally enable fast TS for stv0910-equipped bridges
  media: dvb-frontends/stv0910: make TS speed configurable
  media: ddbridge/mci: add identifiers to function definition arguments
  media: ddbridge/mci: protect against out-of-bounds array access in stop()
  media: rc: ensure input/lirc device can be opened after register
  media: rc: nuvoton: Keep device enabled during reg init
  media: rc: nuvoton: Keep track of users on CIR enable/disable
  media: rc: nuvoton: Tweak the interrupt enabling dance
  media: uvcvideo: Support realtek's UVC 1.5 device
  media: uvcvideo: Fix driver reference counting
  media: gspca_zc3xx: Enable short exposure times for OV7648
  ...
 2018-06-07 12:34:37 -07:00
Linus Torvalds
c90fca951e powerpc updates for 4.18 
Notable changes:
 
  - Support for split PMD page table lock on 64-bit Book3S (Power8/9).
 
  - Add support for HAVE_RELIABLE_STACKTRACE, so we properly support live
    patching again.
 
  - Add support for patching barrier_nospec in copy_from_user() and syscall entry.
 
  - A couple of fixes for our data breakpoints on Book3S.
 
  - A series from Nick optimising TLB/mm handling with the Radix MMU.
 
  - Numerous small cleanups to squash sparse/gcc warnings from Mathieu Malaterre.
 
  - Several series optimising various parts of the 32-bit code from Christophe Leroy.
 
  - Removal of support for two old machines, "SBC834xE" and "C2K" ("GEFanuc,C2K"),
    which is why the diffstat has so many deletions.
 
 And many other small improvements & fixes.
 
 There's a few out-of-area changes. Some minor ftrace changes OK'ed by Steve, and
 a fix to our powernv cpuidle driver. Then there's a series touching mm, x86 and
 fs/proc/task_mmu.c, which cleans up some details around pkey support. It was
 ack'ed/reviewed by Ingo & Dave and has been in next for several weeks.
 
 Thanks to:
   Akshay Adiga, Alastair D'Silva, Alexey Kardashevskiy, Al Viro, Andrew
   Donnellan, Aneesh Kumar K.V, Anju T Sudhakar, Arnd Bergmann, Balbir Singh,
   Cédric Le Goater, Christophe Leroy, Christophe Lombard, Colin Ian King, Dave
   Hansen, Fabio Estevam, Finn Thain, Frederic Barrat, Gautham R. Shenoy, Haren
   Myneni, Hari Bathini, Ingo Molnar, Jonathan Neuschäfer, Josh Poimboeuf,
   Kamalesh Babulal, Madhavan Srinivasan, Mahesh Salgaonkar, Mark Greer, Mathieu
   Malaterre, Matthew Wilcox, Michael Neuling, Michal Suchanek, Naveen N. Rao,
   Nicholas Piggin, Nicolai Stange, Olof Johansson, Paul Gortmaker, Paul
   Mackerras, Peter Rosin, Pridhiviraj Paidipeddi, Ram Pai, Rashmica Gupta, Ravi
   Bangoria, Russell Currey, Sam Bobroff, Samuel Mendoza-Jonas, Segher
   Boessenkool, Shilpasri G Bhat, Simon Guo, Souptick Joarder, Stewart Smith,
   Thiago Jung Bauermann, Torsten Duwe, Vaibhav Jain, Wei Yongjun, Wolfram Sang,
   Yisheng Xie, YueHaibing.
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Merge tag 'powerpc-4.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:
 "Notable changes:

   - Support for split PMD page table lock on 64-bit Book3S (Power8/9).

   - Add support for HAVE_RELIABLE_STACKTRACE, so we properly support
     live patching again.

   - Add support for patching barrier_nospec in copy_from_user() and
     syscall entry.

   - A couple of fixes for our data breakpoints on Book3S.

   - A series from Nick optimising TLB/mm handling with the Radix MMU.

   - Numerous small cleanups to squash sparse/gcc warnings from Mathieu
     Malaterre.

   - Several series optimising various parts of the 32-bit code from
     Christophe Leroy.

   - Removal of support for two old machines, "SBC834xE" and "C2K"
     ("GEFanuc,C2K"), which is why the diffstat has so many deletions.

  And many other small improvements & fixes.

  There's a few out-of-area changes. Some minor ftrace changes OK'ed by
  Steve, and a fix to our powernv cpuidle driver. Then there's a series
  touching mm, x86 and fs/proc/task_mmu.c, which cleans up some details
  around pkey support. It was ack'ed/reviewed by Ingo & Dave and has
  been in next for several weeks.

  Thanks to: Akshay Adiga, Alastair D'Silva, Alexey Kardashevskiy, Al
  Viro, Andrew Donnellan, Aneesh Kumar K.V, Anju T Sudhakar, Arnd
  Bergmann, Balbir Singh, Cédric Le Goater, Christophe Leroy, Christophe
  Lombard, Colin Ian King, Dave Hansen, Fabio Estevam, Finn Thain,
  Frederic Barrat, Gautham R. Shenoy, Haren Myneni, Hari Bathini, Ingo
  Molnar, Jonathan Neuschäfer, Josh Poimboeuf, Kamalesh Babulal,
  Madhavan Srinivasan, Mahesh Salgaonkar, Mark Greer, Mathieu Malaterre,
  Matthew Wilcox, Michael Neuling, Michal Suchanek, Naveen N. Rao,
  Nicholas Piggin, Nicolai Stange, Olof Johansson, Paul Gortmaker, Paul
  Mackerras, Peter Rosin, Pridhiviraj Paidipeddi, Ram Pai, Rashmica
  Gupta, Ravi Bangoria, Russell Currey, Sam Bobroff, Samuel
  Mendoza-Jonas, Segher Boessenkool, Shilpasri G Bhat, Simon Guo,
  Souptick Joarder, Stewart Smith, Thiago Jung Bauermann, Torsten Duwe,
  Vaibhav Jain, Wei Yongjun, Wolfram Sang, Yisheng Xie, YueHaibing"

* tag 'powerpc-4.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (251 commits)
  powerpc/64s/radix: Fix missing ptesync in flush_cache_vmap
  cpuidle: powernv: Fix promotion from snooze if next state disabled
  powerpc: fix build failure by disabling attribute-alias warning in pci_32
  ocxl: Fix missing unlock on error in afu_ioctl_enable_p9_wait()
  powerpc-opal: fix spelling mistake "Uniterrupted" -> "Uninterrupted"
  powerpc: fix spelling mistake: "Usupported" -> "Unsupported"
  powerpc/pkeys: Detach execute_only key on !PROT_EXEC
  powerpc/powernv: copy/paste - Mask SO bit in CR
  powerpc: Remove core support for Marvell mv64x60 hostbridges
  powerpc/boot: Remove core support for Marvell mv64x60 hostbridges
  powerpc/boot: Remove support for Marvell mv64x60 i2c controller
  powerpc/boot: Remove support for Marvell MPSC serial controller
  powerpc/embedded6xx: Remove C2K board support
  powerpc/lib: optimise PPC32 memcmp
  powerpc/lib: optimise 32 bits __clear_user()
  powerpc/time: inline arch_vtime_task_switch()
  powerpc/Makefile: set -mcpu=860 flag for the 8xx
  powerpc: Implement csum_ipv6_magic in assembly
  powerpc/32: Optimise __csum_partial()
  powerpc/lib: Adjust .balign inside string functions for PPC32
  ...
 2018-06-07 10:23:33 -07:00
Linus Torvalds
abf7dba7c4 Char/Misc driver patches for 4.18-rc1 
Here is the "big" char and misc driver patches for 4.18-rc1.
 
 It's not a lot of stuff here, but there are some highlights:
 	- coreboot driver updates
 	- soundwire driver updates
 	- android binder updates
 	- fpga big sync, mostly documentation
 	- lots of minor driver updates
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the "big" char and misc driver patches for 4.18-rc1.

  It's not a lot of stuff here, but there are some highlights:

   - coreboot driver updates

   - soundwire driver updates

   - android binder updates

   - fpga big sync, mostly documentation

   - lots of minor driver updates

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (81 commits)
  vmw_balloon: fixing double free when batching mode is off
  MAINTAINERS: Add driver-api/fpga path
  fpga: clarify that unregister functions also free
  documentation: fpga: move fpga-region.txt to driver-api
  documentation: fpga: add bridge document to driver-api
  documentation: fpga: move fpga-mgr.txt to driver-api
  Documentation: fpga: move fpga overview to driver-api
  fpga: region: kernel-doc fixes
  fpga: bridge: kernel-doc fixes
  fpga: mgr: kernel-doc fixes
  fpga: use SPDX
  fpga: region: change api, add fpga_region_create/free
  fpga: bridge: change api, don't use drvdata
  fpga: manager: change api, don't use drvdata
  fpga: region: don't use drvdata in common fpga code
  Drivers: hv: vmbus: Removed an unnecessary cast from void *
  ver_linux: Drop redundant calls to system() to test if file is readable
  ver_linux: Move stderr redirection from function parameter to function body
  misc: IBM Virtual Management Channel Driver (VMC)
  rpmsg: Correct support for MODULE_DEVICE_TABLE()
  ...
 2018-06-05 16:20:22 -07:00
Linus Torvalds
07c4dd3435 USB/PHY patches for 4.18-rc1 
Here is the big USB pull request for 4.18-rc1.
 
 Lots of stuff here, the highlights are:
 	- phy driver updates and new additions
 	- usual set of xhci driver updates
 	- normal set of musb updates
 	- gadget driver updates and new controllers
 	- typec work, it's getting closer to getting fully out of the
 	  staging portion of the tree.
 	- lots of minor cleanups and bugfixes.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB and PHY updates from Greg KH:
 "Here is the big USB pull request for 4.18-rc1.

  Lots of stuff here, the highlights are:

   - phy driver updates and new additions

   - usual set of xhci driver updates

   - normal set of musb updates

   - gadget driver updates and new controllers

   - typec work, it's getting closer to getting fully out of the staging
     portion of the tree.

   - lots of minor cleanups and bugfixes.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'usb-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (263 commits)
  Revert "xhci: Reset Renesas uPD72020x USB controller for 32-bit DMA issue"
  xhci: Add quirk to zero 64bit registers on Renesas PCIe controllers
  xhci: Allow more than 32 quirks
  usb: xhci: force all memory allocations to node
  selftests: add test for USB over IP driver
  USB: typec: fsusb302: no need to check return value of debugfs_create_dir()
  USB: gadget: udc: s3c2410_udc: no need to check return value of debugfs_create functions
  USB: gadget: udc: renesas_usb3: no need to check return value of debugfs_create functions
  USB: gadget: udc: pxa27x_udc: no need to check return value of debugfs_create functions
  USB: gadget: udc: gr_udc: no need to check return value of debugfs_create functions
  USB: gadget: udc: bcm63xx_udc: no need to check return value of debugfs_create functions
  USB: udc: atmel_usba_udc: no need to check return value of debugfs_create functions
  USB: dwc3: no need to check return value of debugfs_create functions
  USB: dwc2: no need to check return value of debugfs_create functions
  USB: core: no need to check return value of debugfs_create functions
  USB: chipidea: no need to check return value of debugfs_create functions
  USB: ehci-hcd: no need to check return value of debugfs_create functions
  USB: fhci-hcd: no need to check return value of debugfs_create functions
  USB: fotg210-hcd: no need to check return value of debugfs_create functions
  USB: imx21-hcd: no need to check return value of debugfs_create functions
  ...
 2018-06-05 16:14:12 -07:00
Linus Torvalds
eeee3149aa There's been a fair amount of work in the docs tree this time around, 
including:
 
  - Extensive RST conversions and organizational work in the
    memory-management docs thanks to Mike Rapoport.
 
  - An update of Documentation/features from Andrea Parri and a script to
    keep it updated.
 
  - Various LICENSES updates from Thomas, along with a script to check SPDX
    tags.
 
  - Work to fix dangling references to documentation files; this involved a
    fair number of one-liner comment changes outside of Documentation/
 
 ...and the usual list of documentation improvements, typo fixes, etc.
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Merge tag 'docs-4.18' of git://git.lwn.net/linux

Pull documentation updates from Jonathan Corbet:
 "There's been a fair amount of work in the docs tree this time around,
  including:

   - Extensive RST conversions and organizational work in the
     memory-management docs thanks to Mike Rapoport.

   - An update of Documentation/features from Andrea Parri and a script
     to keep it updated.

   - Various LICENSES updates from Thomas, along with a script to check
     SPDX tags.

   - Work to fix dangling references to documentation files; this
     involved a fair number of one-liner comment changes outside of
     Documentation/

  ... and the usual list of documentation improvements, typo fixes, etc"

* tag 'docs-4.18' of git://git.lwn.net/linux: (103 commits)
  Documentation: document hung_task_panic kernel parameter
  docs/admin-guide/mm: add high level concepts overview
  docs/vm: move ksm and transhuge from "user" to "internals" section.
  docs: Use the kerneldoc comments for memalloc_no*()
  doc: document scope NOFS, NOIO APIs
  docs: update kernel versions and dates in tables
  docs/vm: transhuge: split userspace bits to admin-guide/mm/transhuge
  docs/vm: transhuge: minor updates
  docs/vm: transhuge: change sections order
  Documentation: arm: clean up Marvell Berlin family info
  Documentation: gpio: driver: Fix a typo and some odd grammar
  docs: ranoops.rst: fix location of ramoops.txt
  scripts/documentation-file-ref-check: rewrite it in perl with auto-fix mode
  docs: uio-howto.rst: use a code block to solve a warning
  mm, THP, doc: Add document for thp_swpout/thp_swpout_fallback
  w1: w1_io.c: fix a kernel-doc warning
  Documentation/process/posting: wrap text at 80 cols
  docs: admin-guide: add cgroup-v2 documentation
  Revert "Documentation/features/vm: Remove arch support status file for 'pte_special'"
  Documentation: refcount-vs-atomic: Update reference to LKMM doc.
  ...
 2018-06-04 12:34:27 -07:00
Dan Williams
d4dd70915e acpi, nfit: Remove ecc_unit_size 
The "Clear Error Unit" may be smaller than the ECC unit size on some
devices. For example, poison may be tracked at 64-byte alignment even
though the ECC unit is larger. Unless / until the ACPI specification
provides a non-ambiguous way to communicate this property do not expose
this to userspace.

Software that had been using this property must already be prepared for
the case where the property is not provided on older kernels, so it is
safe to remove this attribute.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
 2018-06-03 12:49:15 -07:00
Michael Ellerman
f1079d3a3d Merge branch 'fixes' into next 
We ended up with an ugly conflict between fixes and next in ftrace.h
involving multiple nested ifdefs, and the automatic resolution is
wrong. So merge fixes into next so we can fix it up.
 2018-06-03 20:32:02 +10:00
Vaibhav Jain
b6c84ba22f cxl: Disable prefault_mode in Radix mode 
Currently we see a kernel-oops reported on Power-9 while attaching a
context to an AFU, with radix-mode and sysfs attr 'prefault_mode' set
to anything other than 'none'. The backtrace of the oops is of this
form:

  Unable to handle kernel paging request for data at address 0x00000080
  Faulting instruction address: 0xc00800000bcf3b20
  cpu 0x1: Vector: 300 (Data Access) at [c00000037f003800]
      pc: c00800000bcf3b20: cxl_load_segment+0x178/0x290 [cxl]
      lr: c00800000bcf39f0: cxl_load_segment+0x48/0x290 [cxl]
      sp: c00000037f003a80
     msr: 9000000000009033
     dar: 80
   dsisr: 40000000
    current = 0xc00000037f280000
    paca    = 0xc0000003ffffe600   softe: 3        irq_happened: 0x01
      pid   = 3529, comm = afp_no_int
  <snip>
  cxl_prefault+0xfc/0x248 [cxl]
  process_element_entry_psl9+0xd8/0x1a0 [cxl]
  cxl_attach_dedicated_process_psl9+0x44/0x130 [cxl]
  native_attach_process+0xc0/0x130 [cxl]
  afu_ioctl+0x3f4/0x5e0 [cxl]
  do_vfs_ioctl+0xdc/0x890
  ksys_ioctl+0x68/0xf0
  sys_ioctl+0x40/0xa0
  system_call+0x58/0x6c

The issue is caused as on Power-8 the AFU attr 'prefault_mode' was
used to improve initial storage fault performance by prefaulting
process segments. However on Power-9 with radix mode we don't have
Storage-Segments that we can prefault. Also prefaulting process Pages
will be too costly and fine-grained.

Hence, since the prefaulting mechanism doesn't makes sense of
radix-mode, this patch updates prefault_mode_store() to not allow any
other value apart from CXL_PREFAULT_NONE when radix mode is enabled.

Fixes: f24be42aab ("cxl: Add psl9 specific code")
Cc: stable@vger.kernel.org # v4.12+
Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
 2018-06-02 01:48:05 +10:00
Eric Biggers
9ac19faa91 f2fs: fix features filename in sysfs documentation 
The file is called "features", not "feature".

Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
 2018-05-31 11:31:47 -07:00
Nicolas Boichat
aa071a92bb usb: hub: Per-port setting to reduce TRSTRCY to 10 ms 
Currently, the USB hub core waits for 50 ms after enumerating the
device. This was added to help "some high speed devices" to
enumerate (b789696af8 "[PATCH] USB: relax usbcore reset timings").

On some devices, the time-to-active is important, so we provide
a per-port option to reduce the time to what the USB specification
requires: 10 ms.

Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-05-31 12:48:17 +02:00
Nicolas Boichat
2524422715 usb: hub: Per-port setting to use old enumeration scheme 
The "old" enumeration scheme is considerably faster (it takes
~244ms instead of ~356ms to get the descriptor).

It is currently only possible to use the old scheme globally
(/sys/module/usbcore/parameters/old_scheme_first), which is not
desirable as the new scheme was introduced to increase compatibility
with more devices.

However, in our case, we care about time-to-active for a specific
USB device (which we make the firmware for), on a specific port
(that is pogo-pin based: not a standard USB port). This new
sysfs option makes it possible to use the old scheme on a single
port only.

Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-05-31 12:48:17 +02:00
Chao Yu
377224c471 f2fs: don't split checkpoint in fstrim 
Now, we issue discard asynchronously in separated thread instead of in
checkpoint, after that, we won't encounter long latency in checkpoint
due to huge number of synchronous discard command handling, so, we don't
need to split checkpoint to do trim in batch, merge it and obsolete
related sysfs entry.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
 2018-05-30 08:58:59 -07:00
Mimi Zohar
f1b08bbcbd ima: define a new policy condition based on the filesystem name 
If/when file data signatures are distributed with the file data, this
patch will not be needed.  In the current environment where only some
files are signed, the ability to differentiate between file systems is
needed.  Some file systems consider the file system magic number
internal to the file system.

This patch defines a new IMA policy condition named "fsname", based on
the superblock's file_system_type (sb->s_type) name. This allows policy
rules to be expressed in terms of the filesystem name.

The following sample rules require file signatures on rootfs files
executed or mmap'ed.

appraise func=BPRM_CHECK fsname=rootfs appraise_type=imasig
appraise func=FILE_MMAP fsname=rootfs appraise_type=imasig

Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Theodore Ts'o <tytso@mit.edu>
 2018-05-22 07:33:53 -04:00
Oleg Keri
40760717f9 platform/x86: ideapad-laptop: Add fn-lock setting 
Some of latest Lenovo ideapad laptops do not have UEFI/BIOS setting for
switching fn-lock mode. This commit adds related acpi calls to ideapad
platform driver. However setting is available via sysfs.

Signed-off-by: Oleg Keri <ezhi99@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
 2018-05-22 12:24:12 +03:00
Linus Torvalds
3b78ce4a34 Merge branch 'speck-v20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Merge speculative store buffer bypass fixes from Thomas Gleixner:

 - rework of the SPEC_CTRL MSR management to accomodate the new fancy
   SSBD (Speculative Store Bypass Disable) bit handling.

 - the CPU bug and sysfs infrastructure for the exciting new Speculative
   Store Bypass 'feature'.

 - support for disabling SSB via LS_CFG MSR on AMD CPUs including
   Hyperthread synchronization on ZEN.

 - PRCTL support for dynamic runtime control of SSB

 - SECCOMP integration to automatically disable SSB for sandboxed
   processes with a filter flag for opt-out.

 - KVM integration to allow guests fiddling with SSBD including the new
   software MSR VIRT_SPEC_CTRL to handle the LS_CFG based oddities on
   AMD.

 - BPF protection against SSB

.. this is just the core and x86 side, other architecture support will
come separately.

* 'speck-v20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (49 commits)
  bpf: Prevent memory disambiguation attack
  x86/bugs: Rename SSBD_NO to SSB_NO
  KVM: SVM: Implement VIRT_SPEC_CTRL support for SSBD
  x86/speculation, KVM: Implement support for VIRT_SPEC_CTRL/LS_CFG
  x86/bugs: Rework spec_ctrl base and mask logic
  x86/bugs: Remove x86_spec_ctrl_set()
  x86/bugs: Expose x86_spec_ctrl_base directly
  x86/bugs: Unify x86_spec_ctrl_{set_guest,restore_host}
  x86/speculation: Rework speculative_store_bypass_update()
  x86/speculation: Add virtualized speculative store bypass disable support
  x86/bugs, KVM: Extend speculation control for VIRT_SPEC_CTRL
  x86/speculation: Handle HT correctly on AMD
  x86/cpufeatures: Add FEATURE_ZEN
  x86/cpufeatures: Disentangle SSBD enumeration
  x86/cpufeatures: Disentangle MSR_SPEC_CTRL enumeration from IBRS
  x86/speculation: Use synthetic bits for IBRS/IBPB/STIBP
  KVM: SVM: Move spec control call after restore of GS
  x86/cpu: Make alternative_msr_write work for 32-bit code
  x86/bugs: Fix the parameters alignment and missing void
  x86/bugs: Make cpu_show_common() static
  ...
 2018-05-21 11:23:26 -07:00
Greg Kroah-Hartman
c049ffb35a Merge 4.17-rc6 into usb-next 
We want the bug fixes and this resolves the merge issues with the usbip
driver.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-05-21 08:27:15 +02:00
Matthew Garrett
fa516b66a1 EVM: Allow runtime modification of the set of verified xattrs 
Sites may wish to provide additional metadata alongside files in order
to make more fine-grained security decisions[1]. The security of this is
enhanced if this metadata is protected, something that EVM makes
possible. However, the kernel cannot know about the set of extended
attributes that local admins may wish to protect, and hardcoding this
policy in the kernel makes it difficult to change over time and less
convenient for distributions to enable.

This patch adds a new /sys/kernel/security/integrity/evm/evm_xattrs node,
which can be read to obtain the current set of EVM-protected extended
attributes or written to in order to add new entries. Extending this list
will not change the validity of any existing signatures provided that the
file in question does not have any of the additional extended attributes -
missing xattrs are skipped when calculating the EVM hash.

[1] For instance, a package manager could install information about the
package uploader in an additional extended attribute. Local LSM policy
could then be associated with that extended attribute in order to
restrict the privileges available to packages from less trusted
uploaders.

Signed-off-by: Matthew Garrett <mjg59@google.com>
Reviewed-by: James Morris <james.morris@microsoft.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
 2018-05-18 15:34:45 -04:00
Philippe Bergheaud
497a0790e2 cxl: Report the tunneled operations status 
Failure to synchronize the tunneled operations does not prevent
the initialization of the cxl card. This patch reports the tunneled
operations status via /sys.

Signed-off-by: Philippe Bergheaud <felix@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
 2018-05-15 21:30:01 +10:00
Stephen Hemminger
f59acbc5e0 doc: fix sysfs ABI documentation 
In 4.9 kernel, the sysfs files for Hyper-V VMBus changed name but
the documentation files were not updated. The current sysfs file
names are /sys/bus/vmbus/devices/<UUID>/...

See commit 9a56e5d6a0ba ("Drivers: hv: make VMBus bus ids persistent")
and commit f6b2db084b ("vmbus: make sysfs names consistent with PCI")

Reported-by: Michael Kelley <mikelley@microsoft.com>
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Cc: stable@vger.kernel.org
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-05-14 16:06:48 +02:00
Greg Kroah-Hartman
6a8b25abf1 1st round of IIO new device support, features and cleanup for the 4.18 cycle 
A nice mix this time of excellent cleanups (many to send drivers
 speeding toward staging graduations) and new drivers / device support.
 A good part of this is Brian Masney's never ending task on the tsl2x7x
 driver.  The end is in sight so hopefully we'll get that one out of
 staging very soon!
 
 New device support
 * AD5686
   - Support AD5685R (was wrongly present as AD5685)
   - Support AD5672R, AD5676, AD5676, AD5684R and AD5686R 4 and 8 channel
     SPI DACs with various precisions.
   - Support AD5671R, AD5675R, AD5694, AD5694R, AD5695R, AD5696 and AD5696R
     I2C DACs with various percisions and numbers of channels.
 * Analog front end rescale driver - New driver.
   - Support current sensing usings a shunt resistor.
   - Support simple voltage dividers.
   - support simple current sense amplifiers.
 * TI dac5571
   - New driver and device bindings supporting:
     dac5571, dac6571, dac7571, dac5574, dac6574, dac7574,
     dac5573, dac6573 and dac7573
 * Meson-adc
   - Support for Meson AXG with DT bindings.
 * mpu6050
   - Support the mpu9255 which only requires additional WHOAMI entry and
     compatible string.
 * st_lsm6dsx
   - Support for lsm330dlc combinded accelerometer and gyro sensors with
     DT bindings.
 * stm32_adc
   - Add support for STM32MP1 with bindings.
 
 Staging graduations
 * adis16201 after some excelent cleanup by Himanshu Jha.
 * adis16029 after some excelent cleanup by Shreeya Patel.
 
 New features:
 * ABI docs
   - Add core ABI docs for angle channels.
 * inv_mpu6050
   - Provide support for the full range of interrupts the device
     supports.
 * st_accel
   - Add SMO8840 ACPI ID seen in the wild on some Lenovo machines.
 * stx104
   - Provide a multiple gpio get function.
 
 Cleanups / Minor fixes
 * core
   - Use new nested structure support to improve kernel-doc.
 * ad2s1200
   - Use be16_to_cpup instead of opencoding.
 * ad5686
   - Indentation tidy up.
   - Switch to SPDX
   - Refactor to allow various numbers of channels.
   - Refactor to separate core and SPI specific support, prior to
     addition of i2c equivalent devices.
 * ad7606
   - Use drvdata directly from device rather than boucing via the
     platform_device structure.
 * ad7746
   - Replace opencoded byte swapped i2c calls with _swapped variants.
   - White space and line break readability improvements.
   - Reorder includes and variable declarations where appropriate.
 * ad7791
   - Changes to the AD ADC library used by this driver took in the
     sampling frequency.  This lead to be the wrong path being the one
     tied to the resulting attribute, so it didn't work, and a warning
     to be printed.
 * ad7780
   - Remove apparent support for sampling frequency control on devices
     that don't support changing the sampling attributes.
 * ade7854
   - Fix a read of the wrong number of bits.
   - Improve error handling on i2c read/write errors.
   - Rework i2c and spi code to reduce duplication.
 * adis16201 (staging)
   - Improve meaning inherent in some macro names by adding units etc
     where relevant.
   - Adjust comments to improve detail and drop the irrelevant.
   - Rename register address definitions definitions to add a _REG
     postfix, clearly separating them from field definitions. Reorganize
     the definitions to group register address and fields.
   - Use sign_extend32 rather than open coding.
   - Reverse Xmas tree ordering where appropriate and align function args.
   - Remove unused headers.
   - Use GENMASK where appropriate instead of open coding.
 * adis16209 (staging)
   - Indent field definitions to visually separate them from
     register address definitions.
   - Use reverse xmas tree ordering where appropriate.
   - Add some whitespace where it will help readability.
   - Drop some unused headers.
   - Use GENMASK where appropriate.
 * ad2s1200
   - Drop unnecessary includes and reorder alphabetically.
   - Reverse xmas tree and blank line cleanups.
 * atlas-ph-sensor
   - Use msleep instead of usleep_range where the precise value doesn't
     matter and the delays are long.
 * bcm150
   - Drop transaction splitting as core now handles it.
 * cros_ec
   - Move the shared header to the include/iio/common directory.
     This brings it inline with the other multiple type devices.
   - Use drvdata directly from device rather than boucing via the
     platform_device structure.
 * hid-sensors
   - Use drvdata directly from device rather than boucing via the
     platform_device structure.
 * inv_mpu6050
   - Clear out a second function definition for the same function.
   - Don't flush fifo when the iio buffer is full but just drop excess
     data.
   - Tidy up set_power_itg and ensure it is used in the right places.
   - Use set_power_itg rather than opencoding it again in the i2c mux
     control.
   - Make sure error paths disable the power if undoing power on.
   - Used managed devm_ functions during probe. Delete remove function.
   - Refactor to pull raw data read out of read_raw function.
   - Simplify data reading error paths.
   - Only enable the i2c mux for chips with the i2c aux bus (not icm20608)
   - Fix a potential deadlock due to varying lock ordering.
   - Fix an issue where first sample from gyro after enabling is unstable
     by dropping the first sample.
   - Fix an issue where the user_ctrl register is incorrectly overwritten.
   - Tidy up some grammar and spelling minor issus.
 * mcp320x
   - Use vendor compatible strings.
 * mcp4018
   - Switch to using i2c .probe_new.
 * mcp4351
   - switch to using i2c .probe_new.
 * meson-adc
   - rework handing on common ADC platform data so it can be shared
     across multiple families of SoCs.
 * sca3000
   - Fix an error handling path if the ring configure fails.
 * st_lsm6dsx
   - Fix a wrong fifo threshold mask (no actual effect)
 * stm32-dfsdm
   - Style fixes and cleanups.
   - Check filter ID is in range and check spi-max-frequency.
 * tsl2x7x (staging)
   - Drop some unnecessary function calls, unused variables and
     unnecessary local variables.
   - Fix wrong interrupt type.
   - Avoid unnecessary double clear of interrupt.
   - Simplify proximity calibration call which did various things
     unrelated to actually calibrating.
   - Separate control of the proximity and ALS interrupts.
   - Improve consistency of logging.
   - Separate ALS and proximity persistence settings as they have
     separate hardware controls.
   - Tidy up variable ordering.
   - Add Brian to copyright notice given consider work on this driver.
   - Take advantage of hardware support for I2C address auto increment.
   - Combine individuaal enable and period attributes for the two
     directions on the threshold events into a single value as the
     hardware doesn't separate them.
   - Move integration_time* attributes from light channel to
     intensity value as they effect the intensity readings directly
     and the light reading only indirectly.  Hence this better
     reflects reality. Also move the calibscale_available.
   - Avoid returning an error in the IRQ handler.
   - Hard code the reg value in _clear_interrupts as it only takes
     one value in the code.   Result is the function has little
     purpose so opencode the two remaining i2c_smbus_write_byte
     calls.
   - Drop some unnecessary checking of the chip status register.
   - Tidy up return path in _write_interrupt_config.
   - Tidy up the ID verification code.
   - Move the power and diode settings defines into the header as these
     are needed for platform data configuration.
   - Various renames and comment cleanups for consistency and clarity.
   - Use actual device defaults for default startup settings.
   - SPDX
   - Add some range sanity checking to sysfs attribute writes.
   - Don't provide event interfaces if the interrupt line isn't available.
   - Use IIO_CONST_ATTR macro for calibscale_available as it's a constant
     string.
   - Fix the integration time and lux equations.
   - Make device IDs explicit index values in the device_channel_config array.
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Merge tag 'iio-for-4.18a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

1st round of IIO new device support, features and cleanup for the 4.18 cycle

A nice mix this time of excellent cleanups (many to send drivers
speeding toward staging graduations) and new drivers / device support.
A good part of this is Brian Masney's never ending task on the tsl2x7x
driver.  The end is in sight so hopefully we'll get that one out of
staging very soon!

New device support
* AD5686
  - Support AD5685R (was wrongly present as AD5685)
  - Support AD5672R, AD5676, AD5676, AD5684R and AD5686R 4 and 8 channel
    SPI DACs with various precisions.
  - Support AD5671R, AD5675R, AD5694, AD5694R, AD5695R, AD5696 and AD5696R
    I2C DACs with various percisions and numbers of channels.
* Analog front end rescale driver - New driver.
  - Support current sensing usings a shunt resistor.
  - Support simple voltage dividers.
  - support simple current sense amplifiers.
* TI dac5571
  - New driver and device bindings supporting:
    dac5571, dac6571, dac7571, dac5574, dac6574, dac7574,
    dac5573, dac6573 and dac7573
* Meson-adc
  - Support for Meson AXG with DT bindings.
* mpu6050
  - Support the mpu9255 which only requires additional WHOAMI entry and
    compatible string.
* st_lsm6dsx
  - Support for lsm330dlc combinded accelerometer and gyro sensors with
    DT bindings.
* stm32_adc
  - Add support for STM32MP1 with bindings.

Staging graduations
* adis16201 after some excelent cleanup by Himanshu Jha.
* adis16029 after some excelent cleanup by Shreeya Patel.

New features:
* ABI docs
  - Add core ABI docs for angle channels.
* inv_mpu6050
  - Provide support for the full range of interrupts the device
    supports.
* st_accel
  - Add SMO8840 ACPI ID seen in the wild on some Lenovo machines.
* stx104
  - Provide a multiple gpio get function.

Cleanups / Minor fixes
* core
  - Use new nested structure support to improve kernel-doc.
* ad2s1200
  - Use be16_to_cpup instead of opencoding.
* ad5686
  - Indentation tidy up.
  - Switch to SPDX
  - Refactor to allow various numbers of channels.
  - Refactor to separate core and SPI specific support, prior to
    addition of i2c equivalent devices.
* ad7606
  - Use drvdata directly from device rather than boucing via the
    platform_device structure.
* ad7746
  - Replace opencoded byte swapped i2c calls with _swapped variants.
  - White space and line break readability improvements.
  - Reorder includes and variable declarations where appropriate.
* ad7791
  - Changes to the AD ADC library used by this driver took in the
    sampling frequency.  This lead to be the wrong path being the one
    tied to the resulting attribute, so it didn't work, and a warning
    to be printed.
* ad7780
  - Remove apparent support for sampling frequency control on devices
    that don't support changing the sampling attributes.
* ade7854
  - Fix a read of the wrong number of bits.
  - Improve error handling on i2c read/write errors.
  - Rework i2c and spi code to reduce duplication.
* adis16201 (staging)
  - Improve meaning inherent in some macro names by adding units etc
    where relevant.
  - Adjust comments to improve detail and drop the irrelevant.
  - Rename register address definitions definitions to add a _REG
    postfix, clearly separating them from field definitions. Reorganize
    the definitions to group register address and fields.
  - Use sign_extend32 rather than open coding.
  - Reverse Xmas tree ordering where appropriate and align function args.
  - Remove unused headers.
  - Use GENMASK where appropriate instead of open coding.
* adis16209 (staging)
  - Indent field definitions to visually separate them from
    register address definitions.
  - Use reverse xmas tree ordering where appropriate.
  - Add some whitespace where it will help readability.
  - Drop some unused headers.
  - Use GENMASK where appropriate.
* ad2s1200
  - Drop unnecessary includes and reorder alphabetically.
  - Reverse xmas tree and blank line cleanups.
* atlas-ph-sensor
  - Use msleep instead of usleep_range where the precise value doesn't
    matter and the delays are long.
* bcm150
  - Drop transaction splitting as core now handles it.
* cros_ec
  - Move the shared header to the include/iio/common directory.
    This brings it inline with the other multiple type devices.
  - Use drvdata directly from device rather than boucing via the
    platform_device structure.
* hid-sensors
  - Use drvdata directly from device rather than boucing via the
    platform_device structure.
* inv_mpu6050
  - Clear out a second function definition for the same function.
  - Don't flush fifo when the iio buffer is full but just drop excess
    data.
  - Tidy up set_power_itg and ensure it is used in the right places.
  - Use set_power_itg rather than opencoding it again in the i2c mux
    control.
  - Make sure error paths disable the power if undoing power on.
  - Used managed devm_ functions during probe. Delete remove function.
  - Refactor to pull raw data read out of read_raw function.
  - Simplify data reading error paths.
  - Only enable the i2c mux for chips with the i2c aux bus (not icm20608)
  - Fix a potential deadlock due to varying lock ordering.
  - Fix an issue where first sample from gyro after enabling is unstable
    by dropping the first sample.
  - Fix an issue where the user_ctrl register is incorrectly overwritten.
  - Tidy up some grammar and spelling minor issus.
* mcp320x
  - Use vendor compatible strings.
* mcp4018
  - Switch to using i2c .probe_new.
* mcp4351
  - switch to using i2c .probe_new.
* meson-adc
  - rework handing on common ADC platform data so it can be shared
    across multiple families of SoCs.
* sca3000
  - Fix an error handling path if the ring configure fails.
* st_lsm6dsx
  - Fix a wrong fifo threshold mask (no actual effect)
* stm32-dfsdm
  - Style fixes and cleanups.
  - Check filter ID is in range and check spi-max-frequency.
* tsl2x7x (staging)
  - Drop some unnecessary function calls, unused variables and
    unnecessary local variables.
  - Fix wrong interrupt type.
  - Avoid unnecessary double clear of interrupt.
  - Simplify proximity calibration call which did various things
    unrelated to actually calibrating.
  - Separate control of the proximity and ALS interrupts.
  - Improve consistency of logging.
  - Separate ALS and proximity persistence settings as they have
    separate hardware controls.
  - Tidy up variable ordering.
  - Add Brian to copyright notice given consider work on this driver.
  - Take advantage of hardware support for I2C address auto increment.
  - Combine individuaal enable and period attributes for the two
    directions on the threshold events into a single value as the
    hardware doesn't separate them.
  - Move integration_time* attributes from light channel to
    intensity value as they effect the intensity readings directly
    and the light reading only indirectly.  Hence this better
    reflects reality. Also move the calibscale_available.
  - Avoid returning an error in the IRQ handler.
  - Hard code the reg value in _clear_interrupts as it only takes
    one value in the code.   Result is the function has little
    purpose so opencode the two remaining i2c_smbus_write_byte
    calls.
  - Drop some unnecessary checking of the chip status register.
  - Tidy up return path in _write_interrupt_config.
  - Tidy up the ID verification code.
  - Move the power and diode settings defines into the header as these
    are needed for platform data configuration.
  - Various renames and comment cleanups for consistency and clarity.
  - Use actual device defaults for default startup settings.
  - SPDX
  - Add some range sanity checking to sysfs attribute writes.
  - Don't provide event interfaces if the interrupt line isn't available.
  - Use IIO_CONST_ATTR macro for calibscale_available as it's a constant
    string.
  - Fix the integration time and lux equations.
  - Make device IDs explicit index values in the device_channel_config array.
 2018-05-11 09:50:04 +02:00
Mauro Carvalho Chehab
901b9dd5e3 media: update/fix my e-mail on some places 
There are two places pointing to an unexisting "m.chehab@kernel.org"
email. I never had such email, so, I'm unsure how it ends there.
Anyway, it is plain wrong.

While here, use my canonical e-mail on a bunch of places that
are pointing to another e-mail. The idea is that, from now on,
all places will be pointing to the same SMTP server.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
 2018-05-10 07:27:15 -04:00
Konrad Rzeszutek Wilk
c456442cd3 x86/bugs: Expose /sys/../spec_store_bypass 
Add the sysfs file for the new vulerability. It does not do much except
show the words 'Vulnerable' for recent x86 cores.

Intel cores prior to family 6 are known not to be vulnerable, and so are
some Atoms and some Xeon Phi.

It assumes that older Cyrix, Centaur, etc. cores are immune.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
 2018-05-03 13:55:47 +02:00
David Veenstra
b3e5c2bda9 staging: iio: Documentation: Add missing sysfs docs for angle channel 
The iio resolver drivers in staging use angle channels. This patch
add missing documentation for this type of channel.

As was discussed in [1], radians is chosen as the unit, to match the
unit of angular velocity.

[1] https://marc.info/?l=linux-driver-devel&m=152190078308330&w=2

Signed-off-by: David Veenstra <davidjulianveenstra@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2018-04-28 18:35:59 +01:00
Mike Rapoport
1ad1335dc5 docs/admin-guide/mm: start moving here files from Documentation/vm 
Several documents in Documentation/vm fit quite well into the "admin/user
guide" category. The documents that don't overload the reader with lots of
implementation details and provide coherent description of certain feature
can be moved to Documentation/admin-guide/mm.

Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2018-04-27 17:02:48 -06:00
Anup Patel
39e47767ec rpmsg: Add driver_override device attribute for rpmsg_device 
This patch adds "driver_override" device attribute for rpmsg_device which
will allow users to explicitly specify the rpmsg_driver to be used via
sysfs entry.

The "driver_override" device attribute implemented here is very similar
to "driver_override" implemented for platform, pci, and amba bus types.

One important use-case of "driver_override" device attribute is to force
use of rpmsg_chrdev driver for certain rpmsg_device instances.

Signed-off-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
 2018-04-25 16:59:53 -07:00
Adam Thomson
cf45004195 power: supply: Add 'usb_type' property and supporting code 
This commit adds the 'usb_type' property to represent USB supplies
which can report a number of different types based on a connection
event.

Examples of this already exist in drivers whereby the existing 'type'
property is updated, based on an event, to represent what was
connected (e.g. USB, USB_DCP, USB_ACA, ...). Current implementations
however don't show all supported connectable types, so this knowledge
has to be exlicitly known for each driver that supports this.

The 'usb_type' property is intended to fill this void and show users
all possible USB types supported by a driver. The property, when read,
shows all available types for the driver, and the one currently chosen
is highlighted/bracketed. It is expected that the 'type' property
would then just show the top-level type 'USB', and this would be
static.

Currently the 'usb_type' enum contains all of the USB variant types
that exist for the 'type' enum at this time, and in addition has
SDP and PPS types. The mirroring is intentional so as to not impact
existing usage of the 'type' property.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-04-25 14:17:48 +02:00
Adam Thomson
91dabc5407 Documentation: power: Initial effort to document power_supply ABI 
This commit adds generic ABI information regarding power_supply
properties. This is an initial attempt to try and align the usage
of these properties between drivers. As part of this commit,
common Battery and USB related properties have been listed.

Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-04-25 14:17:48 +02:00
Xiaolei Li
7cc9aa669a mtd: Add sysfs attribute for mtd OOB available size 
Expose mtd OOB available size by sysfs file. Then users can get available
OOB size by accessing /sys/class/mtd/mtdX/oobavail.

Signed-off-by: Xiaolei Li <xiaolei.li@mediatek.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
 2018-04-22 20:07:06 +02:00
Mathias Nyman
b462e2e0d6 Documentation sysfs-bus-usb: Add rx_lanes and tx_lanes introduced in USB 3.2 
rx_lanes and tx_lanes sysfs entries show the number of lanes in use by a
device.
USB 3.2 adds support for Dual-lane (symmetrical), using 2 rx lanes and
2 tx lanes for normal non Inter-Chip SSIC devices.
USB 3.1 and older are all single lane.

SSIC devices can have up to 4 lanes per direction in use,
with different number of rx and tx lanes.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2018-04-22 16:19:26 +02:00
Jonathan Corbet
24844fd339 Merge branch 'mm-rst' into docs-next 
Mike Rapoport says:

  These patches convert files in Documentation/vm to ReST format, add an
  initial index and link it to the top level documentation.

  There are no contents changes in the documentation, except few spelling
  fixes. The relatively large diffstat stems from the indentation and
  paragraph wrapping changes.

  I've tried to keep the formatting as consistent as possible, but I could
  miss some places that needed markup and add some markup where it was not
  necessary.

[jc: significant conflicts in vm/hmm.rst]
 2018-04-16 14:25:08 -06:00
Mike Rapoport
ad56b738c5 docs/vm: rename documentation files to .rst 
Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
 2018-04-16 14:18:15 -06:00
Linus Torvalds
fbe173e3ff RTC for 4.17 
Subsystem:
  - Add tracepoints
  - Rework of the RTC/nvmem API to allow drivers to discard struct nvmem_config
    after registration
  - New range API, drivers can now expose the useful range of the RTC
  - New offset API the core is now able to add an offset to the RTC time,
    modifying the supported range.
  - Multiple rtc_time64_to_tm fixes
  - Handle time_t overflow on 32 bit platforms in the core instead of letting
    drivers do crazy things.
  - remove rtc_control API
 
 New driver:
  - Intersil ISL12026
 
 Drivers:
  - Drivers exposing the RTC non volatile memory have been converted to use nvmem
  - Removed useless time and date validation
  - Removed an indirection pattern that was a cargo cult from ancient drivers
  - Removed VLA usage
  - Fixed a possible race condition in probe functions
  - AB8540 support is dropped from ab8500
  - pcf85363 now has alarm support
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Merge tag 'rtc-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "This contains a few series that have been in preparation for a while
  and that will help systems with RTCs that will fail in 2038, 2069 or
  2100.

  Subsystem:
   - Add tracepoints
   - Rework of the RTC/nvmem API to allow drivers to discard struct
     nvmem_config after registration
   - New range API, drivers can now expose the useful range of the RTC
   - New offset API the core is now able to add an offset to the RTC
     time, modifying the supported range.
   - Multiple rtc_time64_to_tm fixes
   - Handle time_t overflow on 32 bit platforms in the core instead of
     letting drivers do crazy things.
   - remove rtc_control API

  New driver:
   - Intersil ISL12026

  Drivers:
   - Drivers exposing the RTC non volatile memory have been converted to
     use nvmem
   - Removed useless time and date validation
   - Removed an indirection pattern that was a cargo cult from ancient
     drivers
   - Removed VLA usage
   - Fixed a possible race condition in probe functions
   - AB8540 support is dropped from ab8500
   - pcf85363 now has alarm support"

* tag 'rtc-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (128 commits)
  rtc: snvs: Fix usage of snvs_rtc_enable
  rtc: mt7622: fix module autoloading for OF platform drivers
  rtc: isl12022: use true and false for boolean values
  rtc: ab8500: Drop AB8540 support
  rtc: remove a warning during scripts/kernel-doc step
  rtc: 88pm860x: remove artificial limitation
  rtc: 88pm80x: remove artificial limitation
  rtc: st-lpc: remove artificial limitation
  rtc: mrst: remove artificial limitation
  rtc: mv: remove artificial limitation
  rtc: hctosys: Ensure system time doesn't overflow time_t
  parisc: time: stop validating rtc_time in .read_time
  rtc: pcf85063: fix clearing bits in pcf85063_start_clock
  rtc: at91sam9: Set name of regmap_config
  rtc: s5m: Remove VLA usage
  rtc: s5m: Move enum from rtc.h to rtc-s5m.c
  rtc: remove VLA usage
  rtc: Add useful timestamp definitions
  rtc: Add one offset seconds to expand RTC range
  rtc: Factor out the RTC range validation into rtc_valid_range()
  ...
 2018-04-10 10:22:27 -07:00
Linus Torvalds
f8cf2f16a7 Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 
Pull integrity updates from James Morris:
 "A mixture of bug fixes, code cleanup, and continues to close
  IMA-measurement, IMA-appraisal, and IMA-audit gaps.

  Also note the addition of a new cred_getsecid LSM hook by Matthew
  Garrett:

     For IMA purposes, we want to be able to obtain the prepared secid
     in the bprm structure before the credentials are committed. Add a
     cred_getsecid hook that makes this possible.

  which is used by a new CREDS_CHECK target in IMA:

     In ima_bprm_check(), check with both the existing process
     credentials and the credentials that will be committed when the new
     process is started. This will not change behaviour unless the
     system policy is extended to include CREDS_CHECK targets -
     BPRM_CHECK will continue to check the same credentials that it did
     previously"

* 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  ima: Fallback to the builtin hash algorithm
  ima: Add smackfs to the default appraise/measure list
  evm: check for remount ro in progress before writing
  ima: Improvements in ima_appraise_measurement()
  ima: Simplify ima_eventsig_init()
  integrity: Remove unused macro IMA_ACTION_RULE_FLAGS
  ima: drop vla in ima_audit_measurement()
  ima: Fix Kconfig to select TPM 2.0 CRB interface
  evm: Constify *integrity_status_msg[]
  evm: Move evm_hmac and evm_hash from evm_main.c to evm_crypto.c
  fuse: define the filesystem as untrusted
  ima: fail signature verification based on policy
  ima: clear IMA_HASH
  ima: re-evaluate files on privileged mounted filesystems
  ima: fail file signature verification on non-init mounted filesystems
  IMA: Support using new creds in appraisal policy
  security: Add a cred_getsecid hook
 2018-04-07 16:53:59 -07:00
Linus Torvalds
274c0e74e5 f2fs-for-4.17-rc1 
In this round, we've mainly focused on performance tuning and critical bug fixes
 occurred in low-end devices. Sheng Yong introduced lost_found feature to keep
 missing files during recovery instead of thrashing them. We're preparing coming
 fsverity implementation. And, we've got more features to communicate with users
 for better performance. In low-end devices, some memory-related issues were
 fixed, and subtle race condtions and corner cases were addressed as well.
 
 Enhancement:
  - large nat bitmaps for more free node ids
  - add three block allocation policies to pass down write hints given by user
  - expose extension list to user and introduce hot file extension
  - tune small devices seamlessly for low-end devices
  - set readdir_ra by default
  - give more resources under gc_urgent mode regarding to discard and cleaning
  - introduce fsync_mode to enforce posix or not
  - nowait aio support
  - add lost_found feature to keep dangling inodes
  - reserve bits for future fsverity feature
  - add test_dummy_encryption for FBE
 
 Bug fix:
  - don't use highmem for dentry pages
  - align memory boundary for bitops
  - truncate preallocated blocks in write errors
  - guarantee i_times on fsync call
  - clear CP_TRIMMED_FLAG correctly
  - prevent node chain loop during recovery
  - avoid data race between atomic write and background cleaning
  - avoid unnecessary selinux violation warnings on resgid option
  - GFP_NOFS to avoid deadlock in quota and read paths
  - fix f2fs_skip_inode_update to allow i_size recovery
 
 In addition to them, there are several minor bug fixes and clean-ups.
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Merge tag 'f2fs-for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs update from Jaegeuk Kim:
 "In this round, we've mainly focused on performance tuning and critical
  bug fixes occurred in low-end devices. Sheng Yong introduced
  lost_found feature to keep missing files during recovery instead of
  thrashing them. We're preparing coming fsverity implementation. And,
  we've got more features to communicate with users for better
  performance. In low-end devices, some memory-related issues were
  fixed, and subtle race condtions and corner cases were addressed as
  well.

  Enhancements:
   - large nat bitmaps for more free node ids
   - add three block allocation policies to pass down write hints given by user
   - expose extension list to user and introduce hot file extension
   - tune small devices seamlessly for low-end devices
   - set readdir_ra by default
   - give more resources under gc_urgent mode regarding to discard and cleaning
   - introduce fsync_mode to enforce posix or not
   - nowait aio support
   - add lost_found feature to keep dangling inodes
   - reserve bits for future fsverity feature
   - add test_dummy_encryption for FBE

  Bug fixes:
   - don't use highmem for dentry pages
   - align memory boundary for bitops
   - truncate preallocated blocks in write errors
   - guarantee i_times on fsync call
   - clear CP_TRIMMED_FLAG correctly
   - prevent node chain loop during recovery
   - avoid data race between atomic write and background cleaning
   - avoid unnecessary selinux violation warnings on resgid option
   - GFP_NOFS to avoid deadlock in quota and read paths
   - fix f2fs_skip_inode_update to allow i_size recovery

  In addition to the above, there are several minor bug fixes and clean-ups"

* tag 'f2fs-for-4.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (50 commits)
  f2fs: remain written times to update inode during fsync
  f2fs: make assignment of t->dentry_bitmap more readable
  f2fs: truncate preallocated blocks in error case
  f2fs: fix a wrong condition in f2fs_skip_inode_update
  f2fs: reserve bits for fs-verity
  f2fs: Add a segment type check in inplace write
  f2fs: no need to initialize zero value for GFP_F2FS_ZERO
  f2fs: don't track new nat entry in nat set
  f2fs: clean up with F2FS_BLK_ALIGN
  f2fs: check blkaddr more accuratly before issue a bio
  f2fs: Set GF_NOFS in read_cache_page_gfp while doing f2fs_quota_read
  f2fs: introduce a new mount option test_dummy_encryption
  f2fs: introduce F2FS_FEATURE_LOST_FOUND feature
  f2fs: release locks before return in f2fs_ioc_gc_range()
  f2fs: align memory boundary for bitops
  f2fs: remove unneeded set_cold_node()
  f2fs: add nowait aio support
  f2fs: wrap all options with f2fs_sb_info.mount_opt
  f2fs: Don't overwrite all types of node to keep node chain
  f2fs: introduce mount option for fsync mode
  ...
 2018-04-05 19:12:55 -07:00