Commit Graph

915370 Commits

Author SHA1 Message Date
Mathew King
d960d91f86 power: supply: core: Use designated initializer for property text arrays
Use designated initializers for the sysfs power supply text values. This
will help ensure that the text values are kept in sync with the enum
values from power_supply.h.

Signed-off-by: Mathew King <mathewk@chromium.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-07 00:53:49 +02:00
Mathew King
2cabeaf151 power: supply: core: Cleanup power supply sysfs attribute list
Make the device attribute list used to create sysfs attributes more
robust by decoupling the list order from order of the enum defined in
power_supply.h. This is done by using a designated initializer in the
POWER_SUPPLY_ATTR macro.

Signed-off-by: Mathew King <mathewk@chromium.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-07 00:53:38 +02:00
Michał Mirosław
72d9cd9cdc power: bq25890: protect view of the chip's state
Extend bq->lock over whole updating of the chip's state. Might get
useful later for switching ADC modes correctly.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-03 22:33:35 +02:00
Michał Mirosław
a9c2419406 power: bq25890: remove redundant I2C bus check
regmap initialization will check I2C adapter functionality.
Remove redundant check in the driver.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-03 21:51:03 +02:00
Michał Mirosław
a6a48fac96 power: bq25890: make property table const
Property list should not change, so mark it const.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-03 21:50:21 +02:00
Michał Mirosław
5956fca78f power: bq25890: simplify chip name property getter
Driver rejects unknown chips early in the probe(), so when
bq25890_power_supply_get_property() is made reachable, bq->chip_version
will already be set to correct value - there is no need to check
it again.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-03 21:49:34 +02:00
Tobias Schramm
b4c7715c10 power: supply: add CellWise cw2015 fuel gauge driver
This patch adds a driver for the CellWise cw2015 fuel gauge.

The CellWise cw2015 is a shuntless, single-cell Li-Ion fuel gauge used
in the pine64 Pinebook Pro laptop and some Raspberry Pi UPS HATs.

Signed-off-by: Tobias Schramm <t.schramm@manjaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-03 17:40:39 +02:00
Tobias Schramm
6e77618863 dt-bindings: power: supply: add cw2015_battery bindings
This patch adds the dts binding schema for the cw2015 fuel gauge.

Signed-off-by: Tobias Schramm <t.schramm@manjaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-03 17:40:36 +02:00
Tobias Schramm
9521244c3f dt-bindings: Document cellwise vendor-prefix
Signed-off-by: Tobias Schramm <t.schramm@manjaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-03 17:39:49 +02:00
Qiushi Wu
1d7a7128a2 power: supply: core: fix memory leak in HWMON error path
In function power_supply_add_hwmon_sysfs(), psyhw->props is
allocated by bitmap_zalloc(). But this pointer is not deallocated
when devm_add_action fail,  which lead to a memory leak bug. To fix
this, we replace devm_add_action with devm_add_action_or_reset.

Cc: stable@kernel.org
Fixes: e67d4dfc9f ("power: supply: Add HWMON compatibility layer")
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-03 02:17:13 +02:00
Dan Murphy
21d4cdf8b3 dt-bindings: power: Convert power_supply text to yaml
Convert the power_supply.txt to power-supply.yaml.
This conversion entailed fixing up the binding to being yaml and dt
checker compliant.

Added a note in the power_supply.txt to reference the power-supply.yaml

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-02 16:48:02 +02:00
Michał Mirosław
e83a2e4434 power: supply: core: tabularize HWMON temperature labels
Rework power_supply_hwmon_read_string() to check it's parameters.
This allows to extend it later with labels for other types of
measurements.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-01 18:58:42 +02:00
Michał Mirosław
97ed79f493 power: charger-manager: clarify num_properties starting value
Initialize num_properties with length of the copied array instead
of relying on previously memcpy'd value. This makes it clear how
the array and the counter are related.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-01 16:48:02 +02:00
Michał Mirosław
b0e4aa97ea power: supply: core: hide unused HWMON labels
Currently HWMON emulation shows all labels (temp and ambient temp)
regardless if power supply supports reading the values. Check that at
least one property is enabled for each label.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-01 15:43:04 +02:00
Michał Mirosław
6b20464ad9 power: supply: core: fix HWMON temperature labels
tempX_label files are swapped compared to what
power_supply_hwmon_temp_to_property() uses. Make them match.

Cc: stable@vger.kernel.org
Fixes: e67d4dfc9f ("power: supply: Add HWMON compatibility layer")
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-01 15:43:04 +02:00
Michał Mirosław
9ba2353b2c power: supply: core: allow to constify property lists
Since tables pointed to by power_supply_desc->properties and
->usb_types are not expected to change after registration, mark
the pointers accordingly

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-01 15:43:04 +02:00
Sebastian Reichel
191e6bcf50 power: supply: generic-adc-battery: Prepare for const properties
This prepares the driver to work with the properties entry
in power_supply_desc marked as const.

Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-01 15:43:04 +02:00
Sebastian Reichel
4cb3825859 power: supply: charger-manager: Prepare for const properties
This prepares the driver to work with the properties entry
in power_supply_desc marked as const.

Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-01 15:42:18 +02:00
Michał Mirosław
de46e02893 power: supply: core: reduce power_supply_show_usb_type() parameters
Reduce power_supply_show_usb_type() parameter count by folding
power_supply_desc dereference into the function.  This makes following
patch making usb_types const easier.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-01 13:09:48 +02:00
Daniel Golle
0edb259c98 power: reset: introduce oxnas-restart
Add reboot handler for Oxford OX820 chips as reboot currenly hangs on
those boards. Code is based on ox820_assert_system_reset() found in
https://github.com/kref/linux-oxnas.git in
arch/arm/mach-oxnas/mach-ox820.c line 181.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-04-30 23:24:33 +02:00
Geordan Neukum
21b01cc879 power: supply: max17042_battery: Add support for the TTE_NOW prop
The max170{42,47,50,55} family of fuel gauges all provide time-to-empty
estimation. As such, let's export this as a property.

Signed-off-by: Geordan Neukum <gneukum1@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-04-29 20:12:46 +02:00
Tang Bin
aa86e90794 power: supply: axp288_charger: Omit superfluous error message
In the axp288_charger_probe(), when get irq failed, the function
platform_get_irq() logs an error message, so remove redundant
message here.

Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Signed-off-by: Shengju Zhang <zhangshengju@cmss.chinamobile.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-04-29 01:45:00 +02:00
Yuanjiang Yu
7c1c5e38fd power: supply: sc27xx: Add boot voltage support
Add new property to allow to get the voltage measured during boot time.

Signed-off-by: Yuanjiang Yu <yuanjiang.yu@unisoc.com>
Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-04-28 21:24:06 +02:00
Yuanjiang Yu
e5431c3408 power: supply: sc27xx: Add CURRENT_NOW/VOLTAGE_NOW properties support
Add new properties to get present current and voltage of the fuel gauge.

Signed-off-by: Yuanjiang Yu <yuanjiang.yu@unisoc.com>
Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-04-28 21:24:06 +02:00
Yuanjiang Yu
8720b255f5 power: supply: sc27xx: Allow to change the battery full capacity
The battery full capacity can be affected by the temperature or the
servicing time or other factors, so some platforms will track the
real battery full capacity in charger manager service. Thus we should
allow to change the battery full capacity by setting the
'POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN' property as writeable.

Signed-off-by: Yuanjiang Yu <yuanjiang.yu@unisoc.com>
Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-04-28 21:24:06 +02:00
Yuanjiang Yu
f3912a5d56 power: supply: sc27xx: Set 'no_thermal' flag for SC27xx fuel gauge
There is no thermal zone should be created for the SC27XX FGU power supply,
thus set the 'no_thermal' flag as true.

Signed-off-by: Yuanjiang Yu <yuanjiang.yu@unisoc.com>
Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-04-28 21:24:06 +02:00
Jason Yan
ddd86c9534 power: supply: ab8500_fg: remove comparison to bool
Fix the following coccicheck warning:

drivers/power/supply/ab8500_fg.c:2402:5-24: WARNING: Comparison to bool

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-04-28 21:18:47 +02:00
Kejia Hu
fc5be29f9b power: reset: qcom-pon: reg write mask depends on pon generation
Instead of hardcode the mask, it should be depends
on which generation of pon it was.

Signed-off-by: Kejia Hu <kejia.hu@codethink.co.uk>
Fixes: fce5430f6a ("reset: qcom-pon: Add support for gen2 pon")
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-04-28 21:16:45 +02:00
Tang Bin
164eaf6b43 power: supply: 88pm860x_battery: remove redundant dev_err message
In the pm860x_battery_probe(), when get irq failed, the function
platform_get_irq() logs an dev_err message, so remove redundant
message here.

Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-04-14 01:02:45 +02:00
Rafael Gandolfi
4ac54b88b6 power: supply: axp288_fuel_gauge: Add the Meegopad T02 to the blacklist.
The Meegopad T02 is a PC in stick format and doesn't have a battery,
    it is reported with a random and constant battery charge but as
    discharging to userspace.

    Add it to the blacklist to avoid the bogus battery status reporting.

Signed-off-by: Rafael Gandolfi <rafirafi.at@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-04-14 00:59:22 +02:00
Jason Yan
f05ec5073f power: supply: max14656: remove set but not used 'ret'
Fix the following gcc warning:

drivers/power/supply/max14656_charger_detector.c:142:6: warning:
variable ‘ret’ set but not used [-Wunused-but-set-variable]
  int ret = 0;
      ^~~

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-04-13 23:01:54 +02:00
Enric Balletbo i Serra
87c3d579c8 power: supply: bq24257_charger: Replace depends on REGMAP_I2C with select
regmap is a library function that gets selected by drivers that need
it. No driver modules should depend on it. Depending on REGMAP_I2C makes
this driver only build if another driver already selected REGMAP_I2C,
as the symbol can't be selected through the menu kernel configuration.

Fixes: 2219a93596 ("power_supply: Add TI BQ24257 charger driver")
Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-04-13 16:21:53 +02:00
Linus Torvalds
8f3d9f3542 Linux 5.7-rc1 v5.7-rc1 2020-04-12 12:35:55 -07:00
Linus Torvalds
3b50142d85 MAINTAINERS: sort field names for all entries
This sorts the actual field names too, potentially causing even more
chaos and confusion at merge time if you have edited the MAINTAINERS
file.  But the end result is a more consistent layout, and hopefully
it's a one-time pain minimized by doing this just before the -rc1
release.

This was entirely scripted:

  ./scripts/parse-maintainers.pl --input=MAINTAINERS --output=MAINTAINERS --order

Requested-by: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-12 11:04:58 -07:00
Linus Torvalds
4400b7d68f MAINTAINERS: sort entries by entry name
They are all supposed to be sorted, but people who add new entries don't
always know the alphabet.  Plus sometimes the entry names get edited,
and people don't then re-order the entry.

Let's see how painful this will be for merging purposes (the MAINTAINERS
file is often edited in various different trees), but Joe claims there's
relatively few patches in -next that touch this, and doing it just
before -rc1 is likely the best time.  Fingers crossed.

This was scripted with

  /scripts/parse-maintainers.pl --input=MAINTAINERS --output=MAINTAINERS

but then I also ended up manually upper-casing a few entry names that
stood out when looking at the end result.

Requested-by: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-12 11:03:52 -07:00
Linus Torvalds
4f8a3cc118 Merge tag 'x86-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
 "A set of three patches to fix the fallout of the newly added split
  lock detection feature.

  It addressed the case where a KVM guest triggers a split lock #AC and
  KVM reinjects it into the guest which is not prepared to handle it.

  Add proper sanity checks which prevent the unconditional injection
  into the guest and handles the #AC on the host side in the same way as
  user space detections are handled. Depending on the detection mode it
  either warns and disables detection for the task or kills the task if
  the mode is set to fatal"

* tag 'x86-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  KVM: VMX: Extend VMXs #AC interceptor to handle split lock #AC in guest
  KVM: x86: Emulate split-lock access as a write in emulator
  x86/split_lock: Provide handle_guest_split_lock()
2020-04-12 10:17:16 -07:00
Linus Torvalds
0785249f8b Merge tag 'timers-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull time(keeping) updates from Thomas Gleixner:

 - Fix the time_for_children symlink in /proc/$PID/ so it properly
   reflects that it part of the 'time' namespace

 - Add the missing userns limit for the allowed number of time
   namespaces, which was half defined but the actual array member was
   not added. This went unnoticed as the array has an exessive empty
   member at the end but introduced a user visible regression as the
   output was corrupted.

 - Prevent further silent ucount corruption by adding a BUILD_BUG_ON()
   to catch half updated data.

* tag 'timers-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  ucount: Make sure ucounts in /proc/sys/user don't regress again
  time/namespace: Add max_time_namespaces ucount
  time/namespace: Fix time_for_children symlink
2020-04-12 10:13:14 -07:00
Linus Torvalds
590680d139 Merge tag 'sched-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes/updates from Thomas Gleixner:

 - Deduplicate the average computations in the scheduler core and the
   fair class code.

 - Fix a raise between runtime distribution and assignement which can
   cause exceeding the quota by up to 70%.

 - Prevent negative results in the imbalanace calculation

 - Remove a stale warning in the workqueue code which can be triggered
   since the call site was moved out of preempt disabled code. It's a
   false positive.

 - Deduplicate the print macros for procfs

 - Add the ucmap values to the SCHED_DEBUG procfs output for completness

* tag 'sched-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/debug: Add task uclamp values to SCHED_DEBUG procfs
  sched/debug: Factor out printing formats into common macros
  sched/debug: Remove redundant macro define
  sched/core: Remove unused rq::last_load_update_tick
  workqueue: Remove the warning in wq_worker_sleeping()
  sched/fair: Fix negative imbalance in imbalance calculation
  sched/fair: Fix race between runtime distribution and assignment
  sched/fair: Align rq->avg_idle and rq->avg_scan_cost
2020-04-12 10:09:19 -07:00
Linus Torvalds
20e2aa8126 Merge tag 'perf-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner:
 "Three fixes/updates for perf:

   - Fix the perf event cgroup tracking which tries to track the cgroup
     even for disabled events.

   - Add Ice Lake server support for uncore events

   - Disable pagefaults when retrieving the physical address in the
     sampling code"

* tag 'perf-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Disable page faults when getting phys address
  perf/x86/intel/uncore: Add Ice Lake server uncore support
  perf/cgroup: Correct indirection in perf_less_group_idx()
  perf/core: Fix event cgroup tracking
2020-04-12 10:05:24 -07:00
Linus Torvalds
652fa53caa Merge tag 'locking-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Thomas Gleixner:
 "Three small fixes/updates for the locking core code:

   - Plug a task struct reference leak in the percpu rswem
     implementation.

   - Document the refcount interaction with PID_MAX_LIMIT

   - Improve the 'invalid wait context' data dump in lockdep so it
     contains all information which is required to decode the problem"

* tag 'locking-urgent-2020-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking/lockdep: Improve 'invalid wait context' splat
  locking/refcount: Document interaction with PID_MAX_LIMIT
  locking/percpu-rwsem: Fix a task_struct refcount
2020-04-12 09:47:10 -07:00
Linus Torvalds
4119bf9f1d Merge tag '5.7-rc-smb3-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
 "Ten cifs/smb fixes:

   - five RDMA (smbdirect) related fixes

   - add experimental support for swap over SMB3 mounts

   - also a fix which improves performance of signed connections"

* tag '5.7-rc-smb3-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
  smb3: enable swap on SMB3 mounts
  smb3: change noisy error message to FYI
  smb3: smbdirect support can be configured by default
  cifs: smbd: Do not schedule work to send immediate packet on every receive
  cifs: smbd: Properly process errors on ib_post_send
  cifs: Allocate crypto structures on the fly for calculating signatures of incoming packets
  cifs: smbd: Update receive credits before sending and deal with credits roll back on failure before sending
  cifs: smbd: Check send queue size before posting a send
  cifs: smbd: Merge code to track pending packets
  cifs: ignore cached share root handle closing errors
2020-04-12 09:41:01 -07:00
Linus Torvalds
50bda5faa6 Merge tag 'nfs-for-5.7-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfix from Trond Myklebust:
 "Fix an RCU read lock leakage in pnfs_alloc_ds_commits_list()"

* tag 'nfs-for-5.7-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  pNFS: Fix RCU lock leakage
2020-04-12 09:39:47 -07:00
Linus Torvalds
b032227c62 Merge tag 'nios2-v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2
Pull nios2 updates from Ley Foon Tan:

 - Remove nios2-dev@lists.rocketboards.org from MAINTAINERS

 - remove 'resetvalue' property

 - rename 'altr,gpio-bank-width' -> 'altr,ngpio'

 - enable the common clk subsystem on Nios2

* tag 'nios2-v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/lftan/nios2:
  MAINTAINERS: Remove nios2-dev@lists.rocketboards.org
  arch: nios2: remove 'resetvalue' property
  arch: nios2: rename 'altr,gpio-bank-width' -> 'altr,ngpio'
  arch: nios2: Enable the common clk subsystem on Nios2
2020-04-11 11:38:44 -07:00
Linus Torvalds
75e7188397 Merge tag 'dma-mapping-5.7-1' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping fixes from Christoph Hellwig:

 - fix an integer truncation in dma_direct_get_required_mask
   (Kishon Vijay Abraham)

 - fix the display of dma mapping types (Grygorii Strashko)

* tag 'dma-mapping-5.7-1' of git://git.infradead.org/users/hch/dma-mapping:
  dma-debug: fix displaying of dma allocation type
  dma-direct: fix data truncation in dma_direct_get_required_mask()
2020-04-11 11:34:36 -07:00
Linus Torvalds
b753101a4a Merge tag 'kbuild-v5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild updates from Masahiro Yamada:

 - raise minimum supported binutils version to 2.23

 - remove old CONFIG_AS_* macros that we know binutils >= 2.23 supports

 - move remaining CONFIG_AS_* tests to Kconfig from Makefile

 - enable -Wtautological-compare warnings to catch more issues

 - do not support GCC plugins for GCC <= 4.7

 - fix various breakages of 'make xconfig'

 - include the linker version used for linking the kernel into
   LINUX_COMPILER, which is used for the banner, and also exposed to
   /proc/version

 - link lib-y objects to vmlinux forcibly when CONFIG_MODULES=y, which
   allows us to remove the lib-ksyms.o workaround, and to solve the last
   known issue of the LLVM linker

 - add dummy tools in scripts/dummy-tools/ to enable all compiler tests
   in Kconfig, which will be useful for distro maintainers

 - support the single switch, LLVM=1 to use Clang and all LLVM utilities
   instead of GCC and Binutils.

 - support LLVM_IAS=1 to enable the integrated assembler, which is still
   experimental

* tag 'kbuild-v5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (36 commits)
  kbuild: fix comment about missing include guard detection
  kbuild: support LLVM=1 to switch the default tools to Clang/LLVM
  kbuild: replace AS=clang with LLVM_IAS=1
  kbuild: add dummy toolchains to enable all cc-option etc. in Kconfig
  kbuild: link lib-y objects to vmlinux forcibly when CONFIG_MODULES=y
  MIPS: fw: arc: add __weak to prom_meminit and prom_free_prom_memory
  kbuild: remove -I$(srctree)/tools/include from scripts/Makefile
  kbuild: do not pass $(KBUILD_CFLAGS) to scripts/mkcompile_h
  Documentation/llvm: fix the name of llvm-size
  kbuild: mkcompile_h: Include $LD version in /proc/version
  kconfig: qconf: Fix a few alignment issues
  kconfig: qconf: remove some old bogus TODOs
  kconfig: qconf: fix support for the split view mode
  kconfig: qconf: fix the content of the main widget
  kconfig: qconf: Change title for the item window
  kconfig: qconf: clean deprecated warnings
  gcc-plugins: drop support for GCC <= 4.7
  kbuild: Enable -Wtautological-compare
  x86: update AS_* macros to binutils >=2.23, supporting ADX and AVX2
  crypto: x86 - clean up poly1305-x86_64-cryptogams.S by 'make clean'
  ...
2020-04-11 09:46:12 -07:00
Sedat Dilek
c7850ae4d7 mailmap: Add Sedat Dilek (replacement for expired email address)
I do not longer work for credativ Germany.

Please, use my private email address instead.

This is for the case when people want to CC me on
patches sent from my old business email address.

Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-11 09:28:34 -07:00
Trond Myklebust
27d231c0c6 pNFS: Fix RCU lock leakage
Another brown paper bag moment. pnfs_alloc_ds_commits_list() is leaking
the RCU lock.

Fixes: a9901899b6 ("pNFS: Add infrastructure for cleaning up per-layout commit structures")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2020-04-11 11:42:35 -04:00
Xiaoyao Li
e6f8b6c12f KVM: VMX: Extend VMXs #AC interceptor to handle split lock #AC in guest
Two types of #AC can be generated in Intel CPUs:
 1. legacy alignment check #AC
 2. split lock #AC

Reflect #AC back into the guest if the guest has legacy alignment checks
enabled or if split lock detection is disabled.

If the #AC is not a legacy one and split lock detection is enabled, then
invoke handle_guest_split_lock() which will either warn and disable split
lock detection for this task or force SIGBUS on it.

[ tglx: Switch it to handle_guest_split_lock() and rename the misnamed
  helper function. ]

Suggested-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lkml.kernel.org/r/20200410115517.176308876@linutronix.de
2020-04-11 16:42:41 +02:00
Xiaoyao Li
9de6fe3c28 KVM: x86: Emulate split-lock access as a write in emulator
Emulate split-lock accesses as writes if split lock detection is on
to avoid #AC during emulation, which will result in a panic(). This
should never occur for a well-behaved guest, but a malicious guest can
manipulate the TLB to trigger emulation of a locked instruction[1].

More discussion can be found at [2][3].

[1] https://lkml.kernel.org/r/8c5b11c9-58df-38e7-a514-dc12d687b198@redhat.com
[2] https://lkml.kernel.org/r/20200131200134.GD18946@linux.intel.com
[3] https://lkml.kernel.org/r/20200227001117.GX9940@linux.intel.com

Suggested-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lkml.kernel.org/r/20200410115517.084300242@linutronix.de
2020-04-11 16:40:55 +02:00
Thomas Gleixner
d7e94dbdac x86/split_lock: Provide handle_guest_split_lock()
Without at least minimal handling for split lock detection induced #AC,
VMX will just run into the same problem as the VMWare hypervisor, which
was reported by Kenneth.

It will inject the #AC blindly into the guest whether the guest is
prepared or not.

Provide a function for guest mode which acts depending on the host
SLD mode. If mode == sld_warn, treat it like user space, i.e. emit a
warning, disable SLD and mark the task accordingly. Otherwise force
SIGBUS.

 [ bp: Add a !CPU_SUP_INTEL stub for handle_guest_split_lock(). ]

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lkml.kernel.org/r/20200410115516.978037132@linutronix.de
Link: https://lkml.kernel.org/r/20200402123258.895628824@linutronix.de
2020-04-11 16:39:30 +02:00