OSDN Git Service

android-x86/kernel.git
6 years agoMerge tag 'omap-for-v4.16/ti-sysc-fix-signed' of ssh://gitolite.kernel.org/pub/scm...
Arnd Bergmann [Fri, 26 Jan 2018 16:35:16 +0000 (17:35 +0100)]
Merge tag 'omap-for-v4.16/ti-sysc-fix-signed' of ssh://gitolite./linux/kernel/git/tmlind/linux-omap into next/drivers

Pull "one ti-sysc driver fix for v4.16 merge window" from Tony Lindgren:

One minor fix for ti-sysc smartreflex sysc mask that prevents idling
the smartreflex interconnect target module for device tree based
probing.

* tag 'omap-for-v4.16/ti-sysc-fix-signed' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  bus: ti-sysc: Fix smartreflex sysc mask

6 years agoMerge tag 'zynqmp-soc-fixes-for-4.16' of https://github.com/Xilinx/linux-xlnx into...
Arnd Bergmann [Fri, 26 Jan 2018 16:33:36 +0000 (17:33 +0100)]
Merge tag 'zynqmp-soc-fixes-for-4.16' of https://github.com/Xilinx/linux-xlnx into next/drivers

Pull "arm: Xilinx ZynqMP SoC fixes for v4.16" from Michal Simek:

- Fix Kconfig dependency
- Fix vcu clkoutdiv calculation

* tag 'zynqmp-soc-fixes-for-4.16' of https://github.com/Xilinx/linux-xlnx:
  soc: xilinx: Fix Kconfig alignment
  soc: xilinx: xlnx_vcu: Use bitwise & rather than logical && on clkoutdiv
  soc: xilinx: xlnx_vcu: Depends on HAS_IOMEM for xlnx_vcu

6 years agoMerge tag 'soc-fsl-for-4.16' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git...
Arnd Bergmann [Tue, 23 Jan 2018 09:17:26 +0000 (10:17 +0100)]
Merge tag 'soc-fsl-for-4.16' of ssh://gitolite./linux/kernel/git/leo/linux into next/drivers

Pull "FSL/NXP SoC drivers updates for 4.16" from Li Yang:

This adds new SoC support and more error path handling to the guts
driver.

* tag 'soc-fsl-for-4.16' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/leo/linux:
  soc: fsl: guts: Add a NULL check for devm_kasprintf()
  soc: fsl: support GUTS driver for ls1012a/ls1046a

6 years agoof: platform: fix OF node refcount leak
Sudeep Holla [Thu, 18 Jan 2018 10:43:39 +0000 (10:43 +0000)]
of: platform: fix OF node refcount leak

We need to call of_node_put() for device nodes obtained with
of_find_node_by_path().

Fixes: 3aa0582fdb82 ("of: platform: populate /firmware/ node from of_platform_default_populate_init()")
Reported-by: Loys Ollivier <lollivier@baylibre.com>
Cc: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
6 years agosoc: fsl: guts: Add a NULL check for devm_kasprintf()
Fabio Estevam [Sat, 6 Jan 2018 13:22:34 +0000 (11:22 -0200)]
soc: fsl: guts: Add a NULL check for devm_kasprintf()

devm_kasprintf() may fail, so we should better add a NULL check
and propagate an error on failure.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
6 years agobus: ti-sysc: Fix smartreflex sysc mask
Tony Lindgren [Mon, 22 Jan 2018 17:32:53 +0000 (09:32 -0800)]
bus: ti-sysc: Fix smartreflex sysc mask

The enawakeup bit is in a different location for smartreflex compared
to the "ti,sysc-omap2" compatible.

Fixes: 70a65240efb1 ("bus: ti-sysc: Add register bits for interconnect
target modules")
Signed-off-by: Tony Lindgren <tony@atomide.com>
6 years agopsci: add CPU_IDLE dependency
Arnd Bergmann [Mon, 31 Jul 2017 08:55:00 +0000 (10:55 +0200)]
psci: add CPU_IDLE dependency

I ran into a build error for the psci_checker:

drivers/firmware/psci_checker.o: In function `psci_checker':
psci_checker.c:(.init.text+0x528): undefined reference to `cpuidle_devices'

As far as I can tell, this is simply a very rare combination of options,
but the problem has existed since the code was initially added.
Adding a Kconfig dependency makes it build properly.

Fixes: ea8b1c4a6019 ("drivers: psci: PSCI checker module")
Acked-by: Kevin Brodsky <kevin.brodsky@arm.com>
Reviewed-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
6 years agosoc: xilinx: Fix Kconfig alignment
Michal Simek [Tue, 16 Jan 2018 07:36:09 +0000 (08:36 +0100)]
soc: xilinx: Fix Kconfig alignment

Tabs should be used for alignment instead of spaces.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
6 years agosoc: xilinx: xlnx_vcu: Use bitwise & rather than logical && on clkoutdiv
Gustavo A. R. Silva [Mon, 15 Jan 2018 19:15:28 +0000 (13:15 -0600)]
soc: xilinx: xlnx_vcu: Use bitwise & rather than logical && on clkoutdiv

Currently clkoutdiv is being operated on by a logical && operator rather
than a bitwise & operator. This looks incorrect as these should be bit
flag operations.

Addresses-Coverity-ID: 1463959 ("Logical vs. bitwise operator")
Fixes: cee8113a295a ("soc: xilinx: xlnx_vcu: Add Xilinx ZYNQMP VCU logicoreIP init driver")
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Acked-by: Dhaval Shah <dshah@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
6 years agosoc: xilinx: xlnx_vcu: Depends on HAS_IOMEM for xlnx_vcu
Dhaval Shah [Tue, 16 Jan 2018 06:34:48 +0000 (22:34 -0800)]
soc: xilinx: xlnx_vcu: Depends on HAS_IOMEM for xlnx_vcu

xlnx_vcu driver uses devm_ioremap_nocache, which is included
only when HAS_IOMEM is enabled.

drivers/soc/xilinx/xlnx_vcu.o: In function `xvcu_probe':
   xlnx_vcu.c:(.text+0x116): undefined reference to `devm_ioremap_nocache'
   xlnx_vcu.c:(.text+0x1ae): undefined reference to `devm_ioremap_nocache'

Signed-off-by: Dhaval Shah <dshah@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
6 years agosoc: bcm: brcmstb: Be multi-platform compatible
Thierry Reding [Fri, 12 Jan 2018 21:08:15 +0000 (13:08 -0800)]
soc: bcm: brcmstb: Be multi-platform compatible

We were making a bunch of wrong assumptions that turned out to blow out
on non-Broadcom STB platforms:

- we would return -ENODEV from brcmstb_soc_device_early_init() if we
  could not find the sun_top_ctrl device node, this is not an error
  in the context of a multi-platform kernel
- we would still try to register the Broadcom STB SoC device, even if we
  are not running on such a platform

While at it, also fix the sun_top_ctrl device_node leaks while we change
the flow of brcmstb_soc_device_init() and
brcmstb_soc_device_early_init().

Fixes: f780429adfbc ("soc: brcmstb: biuctrl: Move to early_initcall")
Signed-off-by: Thierry Reding <treding@nvidia.com>
[florian: Combine all of Thierry's patch in one go for easier review]
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
6 years agosoc: brcmstb: biuctrl: exit without warning on non brcmstb platforms
Sudeep Holla [Fri, 12 Jan 2018 21:08:14 +0000 (13:08 -0800)]
soc: brcmstb: biuctrl: exit without warning on non brcmstb platforms

Currently if this driver is included, we get the following warning
on any platforms irrespective of whether it's brcmstb platform or not.
"
 brcmstb: biuctrl: missing BIU control node
 brcmstb: biuctrl: MCP: Unable to disable write pairing!
"

This patch allows to exit early without any warning messages on non
brcmstb platforms as it's meaningless for them.

Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Gregory Fong <gregory.0xf0@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Fixes: f780429adfbc ("soc: brcmstb: biuctrl: Move to early_initcall")
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
[florian: Add fixes tag, make initcall non fatal]
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
6 years agoRevert "soc: brcmstb: Only register SoC device on STB platforms"
Olof Johansson [Fri, 12 Jan 2018 18:29:43 +0000 (10:29 -0800)]
Revert "soc: brcmstb: Only register SoC device on STB platforms"

This reverts commit 23a0d847992997000ca2223a19111ee778fbea63.

Patch has issues that's being addressed by the Florian and he will
follow up with a new patch to address the original issue.

Signed-off-by: Olof Johansson <olof@lixom.net>
6 years agoMerge tag 'zynqmp-soc-for-4.16' of https://github.com/Xilinx/linux-xlnx into next...
Olof Johansson [Fri, 12 Jan 2018 18:16:17 +0000 (10:16 -0800)]
Merge tag 'zynqmp-soc-for-4.16' of https://github.com/Xilinx/linux-xlnx into next/drivers

arm: Xilinx ZynqMP SoC patches for v4.16

- Create drivers/soc/xilinx folder structure
- Add ZynqMP vcu init driver

* tag 'zynqmp-soc-for-4.16' of https://github.com/Xilinx/linux-xlnx:
  soc: xilinx: xlnx_vcu: Add Xilinx ZYNQMP VCU logicoreIP init driver
  dt-bindings: soc: xilinx: Add DT bindings to xlnx_vcu driver
  soc: xilinx: Create folder structure for soc specific drivers

Signed-off-by: Olof Johansson <olof@lixom.net>
6 years agoMerge tag 'tee-drv-dynamic-shm+fixes-for-v4.16' of https://git.linaro.org/people...
Olof Johansson [Fri, 12 Jan 2018 02:05:06 +0000 (18:05 -0800)]
Merge tag 'tee-drv-dynamic-shm+fixes-for-v4.16' of https://git.linaro.org/people/jens.wiklander/linux-tee into next/drivers

This pull request updates the previous tee-drv-dynamic-shm-for-v4.16 pull
request with five new patches fixing review comments and errors.

Apart from three small fixes there's two larger patches that in the end
checks that memory to be registered really is normal cached memory.

* tag 'tee-drv-dynamic-shm+fixes-for-v4.16' of https://git.linaro.org/people/jens.wiklander/linux-tee:
  tee: shm: Potential NULL dereference calling tee_shm_register()
  tee: shm: don't put_page on null shm->pages
  tee: shm: make function __tee_shm_alloc static
  tee: optee: check type of registered shared memory
  tee: add start argument to shm_register callback

Signed-off-by: Olof Johansson <olof@lixom.net>
6 years agobus: omap: add MODULE_LICENSE tags
Arnd Bergmann [Thu, 11 Jan 2018 09:36:51 +0000 (10:36 +0100)]
bus: omap: add MODULE_LICENSE tags

linux-4.15 warns about missing MODULE_LICENSE tags such as these

WARNING: modpost: missing MODULE_LICENSE() in drivers/bus/omap_l3_noc.o
WARNING: modpost: missing MODULE_LICENSE() in drivers/bus/omap_l3_smx.o

For completeness, I'm also adding MODULE_AUTHOR and MODULE_DESCRIPTION
tags, but I decided to leave out the email addresses, as all three
authors are working for other companies now.

Cc: Sricharan R <sricharan@codeaurora.org>
Cc: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
6 years agoMerge tag 'samsung-drivers-4.16-2' of https://git.kernel.org/pub/scm/linux/kernel...
Olof Johansson [Fri, 12 Jan 2018 01:36:35 +0000 (17:36 -0800)]
Merge tag 'samsung-drivers-4.16-2' of https://git./linux/kernel/git/krzk/linux into next/drivers

Samsung soc drivers changes for v4.16

Add SPDX license identifiers.

* tag 'samsung-drivers-4.16-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  soc: samsung: Add SPDX license identifiers

Signed-off-by: Olof Johansson <olof@lixom.net>
6 years agosoc: brcmstb: Only register SoC device on STB platforms
Thierry Reding [Tue, 9 Jan 2018 14:54:09 +0000 (15:54 +0100)]
soc: brcmstb: Only register SoC device on STB platforms

After moving the SoC device initialization to an early initcall in
commit f780429adfbc ("soc: brcmstb: biuctrl: Move to early_initcall"),
the Broadcom STB SoC device is registered on all platforms if support
for the device is enabled in the kernel configuration.

This causes an additional SoC device to appear on platforms that already
register a native one. In case of Tegra the STB SoC device is registered
as soc0 (with totally meaningless content in the sysfs attributes) and
causes various scripts and programs to fail because they don't know how
to parse that data.

To fix this, duplicate the check from brcmstb_soc_device_early_init()
that already prevents the code from doing anything nonsensical on non-
STB platforms.

Fixes: f780429adfbc ("soc: brcmstb: biuctrl: Move to early_initcall")
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
6 years agotee: shm: Potential NULL dereference calling tee_shm_register()
Dan Carpenter [Sat, 6 Jan 2018 09:22:30 +0000 (12:22 +0300)]
tee: shm: Potential NULL dereference calling tee_shm_register()

get_user_pages_fast() can return zero in certain error paths.  We should
handle that or else it means we accidentally return ERR_PTR(0) which is
NULL instead of an error pointer.  The callers are not expecting that
and will crash with a NULL dereference.

Fixes: 033ddf12bcf5 ("tee: add register user memory")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
6 years agosoc: xilinx: xlnx_vcu: Add Xilinx ZYNQMP VCU logicoreIP init driver
Dhaval Shah [Thu, 21 Dec 2017 18:33:06 +0000 (10:33 -0800)]
soc: xilinx: xlnx_vcu: Add Xilinx ZYNQMP VCU logicoreIP init driver

Xilinx ZYNQMP logicoreIP Init driver is based on the new
LogiCoreIP design created. This driver provides the processing system
and programmable logic isolation. Set the frequency based on the clock
information get from the logicoreIP register set.

Signed-off-by: Dhaval Shah <dshah@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
6 years agodt-bindings: soc: xilinx: Add DT bindings to xlnx_vcu driver
Dhaval Shah [Thu, 21 Dec 2017 18:33:05 +0000 (10:33 -0800)]
dt-bindings: soc: xilinx: Add DT bindings to xlnx_vcu driver

Add Device Tree binding document for logicoreIP. This logicoreIP
provides the isolation between the processing system and
programmable logic. Also provides the clock related information.

Signed-off-by: Dhaval Shah <dshah@xilinx.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
6 years agosoc: xilinx: Create folder structure for soc specific drivers
Michal Simek [Tue, 19 Dec 2017 13:15:25 +0000 (14:15 +0100)]
soc: xilinx: Create folder structure for soc specific drivers

Create directory structure with Makefile/Kconfig for adding xilinx soc
specific drivers.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
6 years agoMerge tag 'imx-drivers-4.16' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git...
Arnd Bergmann [Fri, 5 Jan 2018 16:55:52 +0000 (17:55 +0100)]
Merge tag 'imx-drivers-4.16' of ssh://gitolite./linux/kernel/git/shawnguo/linux into next/drivers

Pull "i.MX drivers update for 4.16" from Shawn Guo:
 - Update i.MX GPC driver to support PCI power domain of i.MX6SX SoC.

* tag 'imx-drivers-4.16' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  soc: imx: gpc: Add i.MX6SX PCI power domain

6 years agoMerge tag 'reset-for-4.16' of git://git.pengutronix.de/git/pza/linux into next/drivers
Arnd Bergmann [Fri, 5 Jan 2018 11:24:25 +0000 (12:24 +0100)]
Merge tag 'reset-for-4.16' of git://git.pengutronix.de/git/pza/linux into next/drivers

Pull "Reset controller changes for v4.16" from Philipp Zabel:

This adds Meson-AXG reset support and fixes a few issues with the reset
include header: device_reset_optional is fixed to be really optional,
unused headers are pruned, and useless warnings and deprecated API calls
are removed.

* tag 'reset-for-4.16' of git://git.pengutronix.de/git/pza/linux:
  reset: meson-axg: add compatible string for Meson-AXG SoC
  dt-bindings: reset: Add bindings for the Meson-AXG SoC Reset Controller
  reset: remove reset_control_get(_optional)
  reset: minimize the number of headers included from <linux/reset.h>
  reset: remove remaining WARN_ON() in <linux/reset.h>
  reset: make device_reset_optional() really optional

6 years agoMerge tag 'qcom-drivers-for-4.16' of ssh://gitolite.kernel.org/pub/scm/linux/kernel...
Arnd Bergmann [Fri, 5 Jan 2018 11:22:53 +0000 (12:22 +0100)]
Merge tag 'qcom-drivers-for-4.16' of ssh://gitolite./linux/kernel/git/agross/linux into next/drivers

Pull "Qualcomm ARM Based Driver Updates for v4.16 - Redo" from Andy Gross:

* Fix error handling code in SMP2P probe
* Update SMP2P to use ACPS as mailbox client
* Add QMI support
* Fixups for Qualcomm SCM
* Fix licensing on rmtfs_mem
* Correct SMSM child node lookup
* Populate firmware nodes during platform init

* tag 'qcom-drivers-for-4.16' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/agross/linux:
  of: platform: populate /firmware/ node from of_platform_default_populate_init()
  soc: qcom: smp2p: Use common error handling code in qcom_smp2p_probe()
  soc: qcom: Introduce QMI helpers
  soc: qcom: Introduce QMI encoder/decoder
  firmware: qcom_scm: Add dependent headers to qcom_scm.h
  soc: qcom: smp2p: Access APCS as mailbox client
  soc: qcom: rmtfs_mem: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
  soc: qcom: smsm: fix child-node lookup
  firmware: qcom_scm: drop redandant of_platform_populate

6 years agoMerge tag 'at91-ab-4.16-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git...
Olof Johansson [Fri, 5 Jan 2018 07:31:40 +0000 (23:31 -0800)]
Merge tag 'at91-ab-4.16-drivers' of git://git./linux/kernel/git/abelloni/linux into next/drivers

drivers for 4.16

 - use PTR_ERR_OR_ZERO were relevant in at91_cf

* tag 'at91-ab-4.16-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  pcmcia: at91_cf: Use PTR_ERR_OR_ZERO()

Signed-off-by: Olof Johansson <olof@lixom.net>
6 years agoMerge tag 'keystone_driver_soc_for_4.16' of git://git.kernel.org/pub/scm/linux/kernel...
Olof Johansson [Fri, 5 Jan 2018 07:12:57 +0000 (23:12 -0800)]
Merge tag 'keystone_driver_soc_for_4.16' of git://git./linux/kernel/git/ssantosh/linux-keystone into next/drivers

SOC: Keystone Soc driver updates for 4.16

 - TI EMIF-SRAM driver
 - TI SCI print format fix
 - Navigator strndup lenth fix

* tag 'keystone_driver_soc_for_4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux-keystone:
  soc: ti: fix max dup length for kstrndup
  firmware: ti_sci: Use %zu for size_t print format
  memory: ti-emif-sram: remove unused variable
  memory: ti-emif-sram: introduce relocatable suspend/resume handlers
  Documentation: dt: Update ti,emif bindings

Signed-off-by: Olof Johansson <olof@lixom.net>
6 years agoMerge tag 'omap-for-v4.16/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kerne...
Olof Johansson [Fri, 5 Jan 2018 07:06:04 +0000 (23:06 -0800)]
Merge tag 'omap-for-v4.16/ti-sysc-signed' of git://git./linux/kernel/git/tmlind/linux-omap into next/drivers

TI sysc driver updates for v4.16 merge window

We now have gotten ti-sysc driver to the point where it can parse
interconnect target configuration from device tree instead of the
legacy platform data. This series updates the device tree binding
and adds parsing to the driver for quirks and capabilities.

* tag 'omap-for-v4.16/ti-sysc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  bus: ti-sysc: Add parsing of module capabilities
  bus: ti-sysc: Handle module quirks based dts configuration
  bus: ti-sysc: Detect i2c interconnect target module based on register layout
  bus: ti-sysc: Add register bits for interconnect target modules
  bus: ti-sysc: Make omap_hwmod_sysc_fields into sysc_regbits platform data
  ARM: OMAP2+: Move all omap_hwmod_sysc_fields to omap_hwmod_common_data.c
  ARM: dts: Add generic ti,sysc compatible in addition to the custom ones
  dt-bindings: ti-sysc: Update binding for timers and capabilities

Signed-off-by: Olof Johansson <olof@lixom.net>
6 years agoMerge tag 'actions-drivers-for-4.16' of git://git.kernel.org/pub/scm/linux/kernel...
Olof Johansson [Fri, 5 Jan 2018 06:37:59 +0000 (22:37 -0800)]
Merge tag 'actions-drivers-for-4.16' of git://git./linux/kernel/git/afaerber/linux-actions into next/drivers

Actions Semi SoC drivers for v4.16

The SPS power domain driver is extended for S700 SoC.

* tag 'actions-drivers-for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions:
  soc: actions: sps: Add S700

Signed-off-by: Olof Johansson <olof@lixom.net>
6 years agoMerge tag 'arm-soc/for-4.16/drivers' of http://github.com/Broadcom/stblinux into...
Olof Johansson [Fri, 5 Jan 2018 06:31:02 +0000 (22:31 -0800)]
Merge tag 'arm-soc/for-4.16/drivers' of github.com/Broadcom/stblinux into next/drivers

This pull request contains Broadcom ARM/ARM64 based SoCs drivers changes for
4.16, please pull the following:

- Arnd provides an update to the Raspberry Pi firmware interface and uses time64_t to
  print the time to make it more future proof

- Florian provides a set of updates to make the Broadcom STB Bus Interface Unit code
  work on newer ARM64-based chips, as well as perform the correct interface tuning
  for these chips to reach the expected performance

* tag 'arm-soc/for-4.16/drivers' of http://github.com/Broadcom/stblinux:
  soc: brcmstb: biuctrl: Move to early_initcall
  soc: brcmstb: Split initialization
  soc: brcmstb: biuctrl: Fine tune B53 MCP interface settings
  soc: brcmstb: biuctrl: Wire-up new registers
  soc: brcmstb: biuctrl: Prepare for saving/restoring other registers
  soc: brcmstb: Correct CPU_CREDIT_REG offset for Brahma-B53 CPUs
  soc: brcmstb: Make CPU credit offset more parameterized
  dt-bindings: arm: brcmstb: Correct BIUCTRL node documentation
  dt-bindings: arm: Add entry for Broadcom Brahma-B53
  firmware: raspberrypi: print time using time64_t

Signed-off-by: Olof Johansson <olof@lixom.net>
6 years agoof: platform: populate /firmware/ node from of_platform_default_populate_init()
Sudeep Holla [Thu, 28 Sep 2017 10:45:59 +0000 (11:45 +0100)]
of: platform: populate /firmware/ node from of_platform_default_populate_init()

Since "/firmware" does not have its own "compatible" property as it's
just collection of nodes representing firmware interface, it's sub-nodes
are not populated during system initialization.

Currently different firmware drivers search the /firmware/ node and
populate the sub-node devices selectively. Instead we can populate
the /firmware/ node during init to avoid more drivers continuing to
populate the devices selectively.

To generalize the solution this patch populates the /firmware/ node
explicitly from of_platform_default_populate_init().

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
6 years agosoc: samsung: Add SPDX license identifiers
Krzysztof Kozlowski [Mon, 25 Dec 2017 20:17:59 +0000 (21:17 +0100)]
soc: samsung: Add SPDX license identifiers

Replace GPL license statements with SPDX GPL-2.0 license identifiers.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
6 years agosoc: qcom: smp2p: Use common error handling code in qcom_smp2p_probe()
Markus Elfring [Thu, 2 Nov 2017 18:27:33 +0000 (19:27 +0100)]
soc: qcom: smp2p: Use common error handling code in qcom_smp2p_probe()

* Add a jump target so that a specific error message is stored only once
  at the end of this function implementation.

* Replace two calls of the function "dev_err" by goto statements.

* Adjust two condition checks.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
6 years agotee: shm: don't put_page on null shm->pages
Colin Ian King [Fri, 22 Dec 2017 17:51:50 +0000 (17:51 +0000)]
tee: shm: don't put_page on null shm->pages

In the case that shm->pages fails to allocate, the current exit
error path will try to put_page on a null shm->pages and cause
a null pointer dereference when accessing shm->pages[n]. Fix this
by only performing the put_page and kfree on shm->pages if it
is not null.

Detected by CoverityScan, CID#1463283 ("Dereference after null check")

Fixes: 033ddf12bcf5 ("tee: add register user memory")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
6 years agotee: shm: make function __tee_shm_alloc static
Colin Ian King [Fri, 22 Dec 2017 17:01:22 +0000 (17:01 +0000)]
tee: shm: make function __tee_shm_alloc static

The function __tee_shm_alloc is local to the source and does
not need to be in global scope, so make it static.

Cleans up sparse warning:
symbol '__tee_shm_alloc' was not declared. Should it be static?

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
6 years agotee: optee: check type of registered shared memory
Jens Wiklander [Thu, 28 Dec 2017 10:14:05 +0000 (11:14 +0100)]
tee: optee: check type of registered shared memory

Checks the memory type of the pages to be registered as shared memory.
Only normal cached memory is allowed.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
6 years agotee: add start argument to shm_register callback
Jens Wiklander [Thu, 28 Dec 2017 09:08:00 +0000 (10:08 +0100)]
tee: add start argument to shm_register callback

Adds a start argument to the shm_register callback to allow the callback
to check memory type of the passed pages.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
6 years agosoc: imx: gpc: Add i.MX6SX PCI power domain
Fabio Estevam [Fri, 15 Dec 2017 02:24:57 +0000 (00:24 -0200)]
soc: imx: gpc: Add i.MX6SX PCI power domain

i.MX6SX has a PCI power domain in PGC. Add support for it.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
6 years agotee: optee: fix header dependencies
Arnd Bergmann [Thu, 21 Dec 2017 20:18:25 +0000 (21:18 +0100)]
tee: optee: fix header dependencies

The optee driver includes the header files in an unusual order,
with asm/pgtable.h before the linux/*.h headers. For some reason
this seems to trigger a build failure:

drivers/tee/optee/call.c: In function 'optee_fill_pages_list':
include/asm-generic/memory_model.h:64:14: error: implicit declaration of function 'page_to_section'; did you mean '__nr_to_section'? [-Werror=implicit-function-declaration]
  int __sec = page_to_section(__pg);   \
drivers/tee/optee/call.c:494:15: note: in expansion of macro 'page_to_phys'
  optee_page = page_to_phys(*pages) +

Let's just include linux/mm.h, which will then get the other
header implicitly.

Fixes: 3bb48ba5cd60 ("tee: optee: add page list manipulation functions")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
6 years agoMerge tag 'tegra-for-4.16-memory' of ssh://gitolite.kernel.org/pub/scm/linux/kernel...
Arnd Bergmann [Thu, 21 Dec 2017 17:05:04 +0000 (18:05 +0100)]
Merge tag 'tegra-for-4.16-memory' of ssh://gitolite./linux/kernel/git/tegra/linux into next/drivers

Pull "memory: tegra: Changes for v4.16-rc1" from Thierry Reding:

The Tegra memory controller driver will now instruct the SMMU driver to
create groups, which will make it easier for device drivers to share an
IOMMU domain between multiple devices.

Initial Tegra186 support is also added in a separate driver.

* tag 'tegra-for-4.16-memory' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  iommu/tegra-smmu: Fix return value check in tegra_smmu_group_get()
  iommu/tegra: Allow devices to be grouped
  memory: tegra: Create SMMU display groups
  memory: tegra: Add Tegra186 support
  dt-bindings: memory: Add Tegra186 support
  dt-bindings: misc: Add Tegra186 MISC registers bindings

6 years agoMerge tag 'tee-drv-dynamic-shm-for-v4.16' of https://git.linaro.org/people/jens.wikla...
Arnd Bergmann [Thu, 21 Dec 2017 16:23:52 +0000 (17:23 +0100)]
Merge tag 'tee-drv-dynamic-shm-for-v4.16' of https://git.linaro.org/people/jens.wiklander/linux-tee into next/drivers

Pull "tee dynamic shm for v4.16" from Jens Wiklander:

This pull request enables dynamic shared memory support in the TEE
subsystem as a whole and in OP-TEE in particular.

Global Platform TEE specification [1] allows client applications
to register part of own memory as a shared buffer between
application and TEE. This allows fast zero-copy communication between
TEE and REE. But current implementation of TEE in Linux does not support
this feature.

Also, current implementation of OP-TEE transport uses fixed size
pre-shared buffer for all communications with OP-TEE OS. This is okay
in the most use cases. But this prevents use of OP-TEE in virtualized
environments, because:
 a) We can't share the same buffer between different virtual machines
 b) Physically contiguous memory as seen by VM can be non-contiguous
    in reality (and as seen by OP-TEE OS) due to second stage of
    MMU translation.
 c) Size of this pre-shared buffer is limited.

So, first part of this pull request adds generic register/unregister
interface to tee subsystem. The second part adds necessary features into
OP-TEE driver, so it can use not only static pre-shared buffer, but
whole RAM to communicate with OP-TEE OS.

This change is backwards compatible allowing older secure world or
user space to work with newer kernels and vice versa.

[1] https://www.globalplatform.org/specificationsdevice.asp

* tag 'tee-drv-dynamic-shm-for-v4.16' of https://git.linaro.org/people/jens.wiklander/linux-tee:
  tee: shm: inline tee_shm_get_id()
  tee: use reference counting for tee_context
  tee: optee: enable dynamic SHM support
  tee: optee: add optee-specific shared pool implementation
  tee: optee: store OP-TEE capabilities in private data
  tee: optee: add registered buffers handling into RPC calls
  tee: optee: add registered shared parameters handling
  tee: optee: add shared buffer registration functions
  tee: optee: add page list manipulation functions
  tee: optee: Update protocol definitions
  tee: shm: add page accessor functions
  tee: shm: add accessors for buffer size and page offset
  tee: add register user memory
  tee: flexible shared memory pool creation

6 years agobus: ti-sysc: Add parsing of module capabilities
Tony Lindgren [Fri, 15 Dec 2017 17:41:23 +0000 (09:41 -0800)]
bus: ti-sysc: Add parsing of module capabilities

We need to configure the interconnect target module based on the
device three configuration.

Let's also add a new quirk for SYSC_QUIRK_RESET_STATUS to indicate
that the SYSCONFIG reset bit changes after the reset is done.

Signed-off-by: Tony Lindgren <tony@atomide.com>
6 years agobus: ti-sysc: Handle module quirks based dts configuration
Tony Lindgren [Fri, 15 Dec 2017 17:41:19 +0000 (09:41 -0800)]
bus: ti-sysc: Handle module quirks based dts configuration

Let's configure few module quirks via device tree using the
properties for "ti,no-idle-on-init", "ti,no-reset-on-init"
and "ti,sysc-delay-us".

Let's also reorder the probe a bit so we have pdata available
earlier, and move the PM runtime calls to sysc_init_module()
from sysc_read_revision().

Signed-off-by: Tony Lindgren <tony@atomide.com>
6 years agobus: ti-sysc: Detect i2c interconnect target module based on register layout
Tony Lindgren [Fri, 15 Dec 2017 17:41:14 +0000 (09:41 -0800)]
bus: ti-sysc: Detect i2c interconnect target module based on register layout

We can easily detect i2c based on it's non-standard module registers that
consist of two 32-bit registers accessed in 16-bit mode.

So far we don't have other 16-bit modules, so there's currently no need
to add a custom property for 16-bit register access.

Signed-off-by: Tony Lindgren <tony@atomide.com>
6 years agobus: ti-sysc: Add register bits for interconnect target modules
Tony Lindgren [Fri, 15 Dec 2017 17:41:09 +0000 (09:41 -0800)]
bus: ti-sysc: Add register bits for interconnect target modules

Let's add data for the known interconnect target module types by mapping
their register bits.

Note that we can handle many quirks for the older omap2 type1 modules
directly in the driver without a need for adding custom properties.

Signed-off-by: Tony Lindgren <tony@atomide.com>
6 years agobus: ti-sysc: Make omap_hwmod_sysc_fields into sysc_regbits platform data
Tony Lindgren [Fri, 15 Dec 2017 17:41:05 +0000 (09:41 -0800)]
bus: ti-sysc: Make omap_hwmod_sysc_fields into sysc_regbits platform data

We want to be able to configure hwmod sysc data from ti-sysc driver using
platform data callbacks. So let's make struct omap_hwmod_sysc_fields into
struct sysc_data and have it available for both ti-sysc driver and hwmod
code.

Note that we can make it use s8 instead of u8 as the hwmod code uses the
feature flags to check for this field. However, for ti-sysc we can use
-ENODEV to indicate a feature is not supported in the hardware and can
simplify the code that way.

And let's add also emufree_shift as the dts files will be describing the
hardware for the SYSCONFIG register capbilities mask.

Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
6 years agoARM: OMAP2+: Move all omap_hwmod_sysc_fields to omap_hwmod_common_data.c
Tony Lindgren [Fri, 15 Dec 2017 17:41:01 +0000 (09:41 -0800)]
ARM: OMAP2+: Move all omap_hwmod_sysc_fields to omap_hwmod_common_data.c

We want to be able to eventually allocate these dynamically with the
data for omap_hwmod_class_sysconfig coming from dts.

Note that omap_hwmod_sysc_type_smartreflex is the same as the older
omap36xx_sr_sysc_fields, so let's use the earlier omap36xx_sr_sysc_fields
instead.

Signed-off-by: Tony Lindgren <tony@atomide.com>
6 years agoARM: dts: Add generic ti,sysc compatible in addition to the custom ones
Tony Lindgren [Thu, 14 Dec 2017 00:36:47 +0000 (16:36 -0800)]
ARM: dts: Add generic ti,sysc compatible in addition to the custom ones

Otherwise we cannot use generic OF_DEV_AUXDATA match without listing
all the compatibles separately for OF_DEV_AUXDATA. Let's also update the
binding accordingly.

Let's also fix omap4.dtsi to use "ti,sysc-omap4-sr" compatible as we
have documented in the binding. This was not noticed earlier as we're
still probing SmartReflex driver with platform data.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
6 years agoMerge tag 'gpmc-omap-for-v4.16-immutable' of https://github.com/rogerq/linux into...
Arnd Bergmann [Thu, 21 Dec 2017 15:23:36 +0000 (16:23 +0100)]
Merge tag 'gpmc-omap-for-v4.16-immutable' of https://github.com/rogerq/linux into next/drivers

Pull "OMAP-GPMC: driver updates for v4.16" from Roger Quadros:

* Error out only if both 'bank-width' and 'gpmc,device-width' DT properties are missing.

* tag 'gpmc-omap-for-v4.16-immutable' of https://github.com/rogerq/linux:
  memory: omap-gpmc: Make 'bank-width' property optional

6 years agoMerge tag 'tee-drv-async-supplicant-for-v4.16' of https://git.linaro.org/people/jens...
Arnd Bergmann [Thu, 21 Dec 2017 15:02:07 +0000 (16:02 +0100)]
Merge tag 'tee-drv-async-supplicant-for-v4.16' of https://git.linaro.org/people/jens.wiklander/linux-tee into next/drivers

Pull "Enable async communication with tee supplicant" from Jens Wiklander:

This pull request enables asynchronous communication with TEE supplicant
by introducing meta parameters in the user space API. The meta
parameters can be used to tag requests with an id that can be matched
against an asynchronous response as is done here in the OP-TEE driver.

Asynchronous supplicant communication is needed by OP-TEE to implement
GlobalPlatforms TEE Sockets API Specification v1.0.1. The specification
is available at https://www.globalplatform.org/specificationsdevice.asp.

This change is backwards compatible allowing older supplicants to work
with newer kernels and vice versa.

* tag 'tee-drv-async-supplicant-for-v4.16' of https://git.linaro.org/people/jens.wiklander/linux-tee:
  optee: support asynchronous supplicant requests
  tee: add TEE_IOCTL_PARAM_ATTR_META
  tee: add tee_param_is_memref() for driver use

6 years agosoc: brcmstb: biuctrl: Move to early_initcall
Florian Fainelli [Wed, 12 Apr 2017 00:26:11 +0000 (17:26 -0700)]
soc: brcmstb: biuctrl: Move to early_initcall

Being called during early_initcall() is early enough that it occurs
before SMP initialization, which is all we care about for the Bus
Interface Unit configuration.

This solves lack of BIU initialization on ARM64 platforms where we do
not have an anchor where to put the BIU initialization (since there are
no machine descriptors).

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
6 years agosoc: brcmstb: Split initialization
Florian Fainelli [Wed, 29 Nov 2017 18:54:16 +0000 (10:54 -0800)]
soc: brcmstb: Split initialization

We may need access to family_id and product_id fairly early on boot for
other parts of the code (e.g: biuctrl.c), so split the initialization
between an early_init() and an arch_initcall() which allows us to do
that.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
6 years agosoc: brcmstb: biuctrl: Fine tune B53 MCP interface settings
Florian Fainelli [Tue, 28 Feb 2017 01:35:03 +0000 (17:35 -0800)]
soc: brcmstb: biuctrl: Fine tune B53 MCP interface settings

In order to achieve expected MCP bus throughput on 3 particular chips:
7268, 7271 and 7278, do the appropriate programming of the MCP
interface: increase number of MCP write credits, turn on write-back
throttling when present.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
6 years agosoc: brcmstb: biuctrl: Wire-up new registers
Florian Fainelli [Tue, 28 Feb 2017 00:40:05 +0000 (16:40 -0800)]
soc: brcmstb: biuctrl: Wire-up new registers

Add definitions for B53 systems register: CPU_MCP_FLOW_REG and
CPU_WRITEBACK_CTRL_REG. These register will be saved and restored
accordingly.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
6 years agosoc: brcmstb: biuctrl: Prepare for saving/restoring other registers
Florian Fainelli [Tue, 28 Feb 2017 00:36:17 +0000 (16:36 -0800)]
soc: brcmstb: biuctrl: Prepare for saving/restoring other registers

In preparation for saving/restoring additional registers required on
some newer platforms (7268, 7271, 7278), migrate the code to use enums
and helper functions to access registers.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
6 years agosoc: brcmstb: Correct CPU_CREDIT_REG offset for Brahma-B53 CPUs
Florian Fainelli [Tue, 31 Jan 2017 22:54:00 +0000 (14:54 -0800)]
soc: brcmstb: Correct CPU_CREDIT_REG offset for Brahma-B53 CPUs

On Broadcom Brahma-B53 CPUs, the CPU_CREDIT_REG offset got moved to
0x0b0 instead of 0x184, correct this such that we correcty
enable/disable write-pairing for these chips.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
6 years agosoc: brcmstb: Make CPU credit offset more parameterized
Florian Fainelli [Tue, 31 Jan 2017 22:47:45 +0000 (14:47 -0800)]
soc: brcmstb: Make CPU credit offset more parameterized

In preparation for fixing and changing values in the CPU_CREDIT_REG
register for B53-based systems, make the offset parameterized.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
6 years agodt-bindings: arm: brcmstb: Correct BIUCTRL node documentation
Florian Fainelli [Wed, 29 Nov 2017 18:33:51 +0000 (10:33 -0800)]
dt-bindings: arm: brcmstb: Correct BIUCTRL node documentation

Correct the Device Tree bindings for the HIF_CPUBIUCTRL node whose
compatible string is actually brcm,bcm<chip-id>-cpu-biu-ctrl. Also
document in the binding the fallback property
("brcm,brcmstb-cpu-biu-ctrl") and update the example accordingly.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
6 years agodt-bindings: arm: Add entry for Broadcom Brahma-B53
Florian Fainelli [Wed, 29 Nov 2017 17:52:59 +0000 (09:52 -0800)]
dt-bindings: arm: Add entry for Broadcom Brahma-B53

Broadcom's Brahma-B53 CPU is an ARMv8A processor used on a number of
DSL, Cable Modem and Set-top-box SoCs.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
6 years agoMerge tag 'bcm2835-drivers-next-2017-12-19' into drivers/next
Florian Fainelli [Thu, 21 Dec 2017 01:34:40 +0000 (17:34 -0800)]
Merge tag 'bcm2835-drivers-next-2017-12-19' into drivers/next

This pull request brings in a (cosmetic) y2038 fix for the Raspberry
Pi firmware driver.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
6 years agosoc: qcom: Introduce QMI helpers
Bjorn Andersson [Tue, 5 Dec 2017 17:43:07 +0000 (09:43 -0800)]
soc: qcom: Introduce QMI helpers

Drivers that needs to communicate with a remote QMI service all has to
perform the operations of discovering the service, encoding and decoding
the messages and operate the socket. This introduces an abstraction for
these common operations, reducing most of the duplication in such cases.

Acked-by: Chris Lew <clew@codeaurora.org>
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
6 years agosoc: qcom: Introduce QMI encoder/decoder
Bjorn Andersson [Tue, 5 Dec 2017 17:43:06 +0000 (09:43 -0800)]
soc: qcom: Introduce QMI encoder/decoder

Add the helper library for encoding and decoding QMI encoded messages.
The implementation is taken from lib/qmi_encdec.c of the Qualcomm kernel
(msm-3.18).

Modifications has been made to the public API, source buffers has been
made const and the debug-logging part was omitted, for now.

Acked-by: Chris Lew <clew@codeaurora.org>
Tested-by: Chris Lew <clew@codeaurora.org>
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
6 years agofirmware: qcom_scm: Add dependent headers to qcom_scm.h
Jordan Crouse [Mon, 4 Dec 2017 17:18:46 +0000 (10:18 -0700)]
firmware: qcom_scm: Add dependent headers to qcom_scm.h

qcom_scm.h makes heavy use of <linux/types.h> and <linux/cpumask.h>.
Add the dependent header files so that users of SCM don't need to
include header files they don't otherwise use.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
6 years agosoc: qcom: smp2p: Access APCS as mailbox client
Bjorn Andersson [Thu, 30 Nov 2017 00:00:40 +0000 (16:00 -0800)]
soc: qcom: smp2p: Access APCS as mailbox client

Attempt to acquire the APCS IPC through the mailbox framework and fall
back to the old syscon based approach, to allow us to move away from
using the syscon.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
6 years agosoc: qcom: rmtfs_mem: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
Jesse Chan [Mon, 20 Nov 2017 21:33:25 +0000 (13:33 -0800)]
soc: qcom: rmtfs_mem: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE

This change resolves a new compile-time warning
when built as a loadable module:

WARNING: modpost: missing MODULE_LICENSE() in drivers/soc/qcom/rmtfs_mem.o
see include/linux/module.h for more information

This adds the license as "GPL v2", which matches the header of the file.

MODULE_DESCRIPTION and MODULE_AUTHOR are also added.

Signed-off-by: Jesse Chan <jc@linux.com>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
6 years agosoc: qcom: smsm: fix child-node lookup
Johan Hovold [Wed, 15 Nov 2017 11:07:24 +0000 (12:07 +0100)]
soc: qcom: smsm: fix child-node lookup

Fix child-node lookup during probe, which ended up searching the whole
device tree depth-first starting at the parent rather than just matching
on its children.

Note that the original premature free of the parent node has already
been fixed separately.

Also note that this pattern of looking up the first child node with a
given property is rare enough that a generic helper is probably not
warranted.

Fixes: c97c4090ff72 ("soc: qcom: smsm: Add driver for Qualcomm SMSM")
Fixes: 3e8b55411468 ("soc: qcom: smsm: fix of_node refcnting problem")
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Rob Clark <robdclark@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
6 years agofirmware: qcom_scm: drop redandant of_platform_populate
Sudeep Holla [Thu, 28 Sep 2017 10:46:00 +0000 (11:46 +0100)]
firmware: qcom_scm: drop redandant of_platform_populate

Now that of_platform_default_populate_init() takes care of populating
all the devices under the /firmware/ node, this patch removes the
redandant call to of_platform_populate here.

Cc: Andy Gross <andy.gross@linaro.org>
Cc: David Brown <david.brown@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
6 years agoiommu/tegra-smmu: Fix return value check in tegra_smmu_group_get()
Wei Yongjun [Wed, 20 Dec 2017 03:06:09 +0000 (03:06 +0000)]
iommu/tegra-smmu: Fix return value check in tegra_smmu_group_get()

In case of error, the function iommu_group_alloc() returns ERR_PTR() and
never returns NULL. The NULL test in the return value check should be
replaced with IS_ERR().

Fixes: 7f4c9176f760 ("iommu/tegra: Allow devices to be grouped")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
6 years agoLinux 4.15-rc4
Linus Torvalds [Mon, 18 Dec 2017 02:59:59 +0000 (18:59 -0800)]
Linux 4.15-rc4

6 years agoRevert "exec: avoid RLIMIT_STACK races with prlimit()"
Kees Cook [Tue, 12 Dec 2017 19:28:38 +0000 (11:28 -0800)]
Revert "exec: avoid RLIMIT_STACK races with prlimit()"

This reverts commit 04e35f4495dd560db30c25efca4eecae8ec8c375.

SELinux runs with secureexec for all non-"noatsecure" domain transitions,
which means lots of processes end up hitting the stack hard-limit change
that was introduced in order to fix a race with prlimit(). That race fix
will need to be redesigned.

Reported-by: Laura Abbott <labbott@redhat.com>
Reported-by: Tomáš Trnka <trnka@scm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
6 years agoMerge branch 'WIP.x86-pti.base-for-linus' of git://git.kernel.org/pub/scm/linux/kerne...
Linus Torvalds [Sun, 17 Dec 2017 21:57:08 +0000 (13:57 -0800)]
Merge branch 'WIP.x86-pti.base-for-linus' of git://git./linux/kernel/git/tip/tip

Pull Page Table Isolation (PTI) v4.14 backporting base tree from Ingo Molnar:
 "This tree contains the v4.14 PTI backport preparatory tree, which
  consists of four merges of upstream trees and 7 cherry-picked commits,
  which the upcoming PTI work depends on"

NOTE! The resulting tree is exactly the same as the original base tree
(ie the diff between this commit and its immediate first parent is
empty).

The only reason for this merge is literally to have a common point for
the actual PTI changes so that the commits can be shared in both the
4.15 and 4.14 trees.

* 'WIP.x86-pti.base-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm/kasan: Don't use vmemmap_populate() to initialize shadow
  locking/barriers: Convert users of lockless_dereference() to READ_ONCE()
  locking/barriers: Add implicit smp_read_barrier_depends() to READ_ONCE()
  bpf: fix build issues on um due to mising bpf_perf_event.h
  perf/x86: Enable free running PEBS for REGS_USER/INTR
  x86: Make X86_BUG_FXSAVE_LEAK detectable in CPUID on AMD
  x86/cpufeature: Add User-Mode Instruction Prevention definitions

6 years agoMerge branch 'WIP.x86-pti.base.prep-for-linus' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Sun, 17 Dec 2017 21:54:31 +0000 (13:54 -0800)]
Merge branch 'WIP.x86-pti.base.prep-for-linus' of git://git./linux/kernel/git/tip/tip

Pull Page Table Isolation (PTI) preparatory tree from Ingo Molnar:
 "This does a rename to free up linux/pti.h to be used by the upcoming
  page table isolation feature"

* 'WIP.x86-pti.base.prep-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  drivers/misc/intel/pti: Rename the header file to free up the namespace

6 years agoMerge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 17 Dec 2017 21:48:50 +0000 (13:48 -0800)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull timer fix from Thomas Gleixner:
 "A single bugfix which prevents arbitrary sigev_notify values in
  posix-timers"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  posix-timer: Properly check sigevent->sigev_notify

6 years agoMerge tag 'dmaengine-fix-4.15-rc4' of git://git.infradead.org/users/vkoul/slave-dma
Linus Torvalds [Sun, 17 Dec 2017 21:28:49 +0000 (13:28 -0800)]
Merge tag 'dmaengine-fix-4.15-rc4' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine fixes from Vinod Koul:
 "This time consisting of fixes in a bunch of drivers and the dmatest
  module:

   - Fix for disable clk on error path in fsl-edma driver
   - Disable clk fail fix in jz4740 driver
   - Fix long pending bug in dmatest driver for dangling pointer
   - Fix potential NULL pointer dereference in at_hdmac driver
   - Error handling path in ioat driver"

* tag 'dmaengine-fix-4.15-rc4' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: fsl-edma: disable clks on all error paths
  dmaengine: jz4740: disable/unprepare clk if probe fails
  dmaengine: dmatest: move callback wait queue to thread context
  dmaengine: at_hdmac: fix potential NULL pointer dereference in atc_prep_dma_interleaved
  dmaengine: ioat: Fix error handling path

6 years agocramfs: fix MTD dependency
Arnd Bergmann [Fri, 10 Nov 2017 14:57:21 +0000 (15:57 +0100)]
cramfs: fix MTD dependency

With CONFIG_MTD=m and CONFIG_CRAMFS=y, we now get a link failure:

  fs/cramfs/inode.o: In function `cramfs_mount': inode.c:(.text+0x220): undefined reference to `mount_mtd'
  fs/cramfs/inode.o: In function `cramfs_mtd_fill_super':
  inode.c:(.text+0x6d8): undefined reference to `mtd_point'
  inode.c:(.text+0xae4): undefined reference to `mtd_unpoint'

This adds a more specific Kconfig dependency to avoid the broken
configuration.

Alternatively we could make CRAMFS itself depend on "MTD || !MTD" with a
similar result.

Fixes: 99c18ce580c6 ("cramfs: direct memory access support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
6 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Sun, 17 Dec 2017 20:18:35 +0000 (12:18 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs

Pull vfs fixes from Al Viro:
 "The alloc_super() one is a regression in this merge window, lazytime
  thing is older..."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  VFS: Handle lazytime in do_mount()
  alloc_super(): do ->s_umount initialization earlier

6 years agoMerge tag 'ext4_for_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso...
Linus Torvalds [Sun, 17 Dec 2017 20:14:33 +0000 (12:14 -0800)]
Merge tag 'ext4_for_stable' of git://git./linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:
 "Fix a regression which caused us to fail to interpret symlinks in very
  ancient ext3 file system images.

  Also fix two xfstests failures, one of which could cause an OOPS, plus
  an additional bug fix caught by fuzz testing"

* tag 'ext4_for_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix crash when a directory's i_size is too small
  ext4: add missing error check in __ext4_new_inode()
  ext4: fix fdatasync(2) after fallocate(2) operation
  ext4: support fast symlinks from ext3 file systems

6 years agox86/mm/kasan: Don't use vmemmap_populate() to initialize shadow
Andrey Ryabinin [Thu, 16 Nov 2017 01:36:35 +0000 (17:36 -0800)]
x86/mm/kasan: Don't use vmemmap_populate() to initialize shadow

[ Note, this is a Git cherry-pick of the following commit:

    d17a1d97dc20: ("x86/mm/kasan: don't use vmemmap_populate() to initialize shadow")

  ... for easier x86 PTI code testing and back-porting. ]

The KASAN shadow is currently mapped using vmemmap_populate() since that
provides a semi-convenient way to map pages into init_top_pgt.  However,
since that no longer zeroes the mapped pages, it is not suitable for
KASAN, which requires zeroed shadow memory.

Add kasan_populate_shadow() interface and use it instead of
vmemmap_populate().  Besides, this allows us to take advantage of
gigantic pages and use them to populate the shadow, which should save us
some memory wasted on page tables and reduce TLB pressure.

Link: http://lkml.kernel.org/r/20171103185147.2688-2-pasha.tatashin@oracle.com
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Steven Sistare <steven.sistare@oracle.com>
Cc: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Bob Picco <bob.picco@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
6 years agolocking/barriers: Convert users of lockless_dereference() to READ_ONCE()
Will Deacon [Tue, 24 Oct 2017 10:22:48 +0000 (11:22 +0100)]
locking/barriers: Convert users of lockless_dereference() to READ_ONCE()

[ Note, this is a Git cherry-pick of the following commit:

    506458efaf15 ("locking/barriers: Convert users of lockless_dereference() to READ_ONCE()")

  ... for easier x86 PTI code testing and back-porting. ]

READ_ONCE() now has an implicit smp_read_barrier_depends() call, so it
can be used instead of lockless_dereference() without any change in
semantics.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1508840570-22169-4-git-send-email-will.deacon@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
6 years agolocking/barriers: Add implicit smp_read_barrier_depends() to READ_ONCE()
Will Deacon [Tue, 24 Oct 2017 10:22:47 +0000 (11:22 +0100)]
locking/barriers: Add implicit smp_read_barrier_depends() to READ_ONCE()

[ Note, this is a Git cherry-pick of the following commit:

    76ebbe78f739 ("locking/barriers: Add implicit smp_read_barrier_depends() to READ_ONCE()")

  ... for easier x86 PTI code testing and back-porting. ]

In preparation for the removal of lockless_dereference(), which is the
same as READ_ONCE() on all architectures other than Alpha, add an
implicit smp_read_barrier_depends() to READ_ONCE() so that it can be
used to head dependency chains on all architectures.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1508840570-22169-3-git-send-email-will.deacon@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
6 years agobpf: fix build issues on um due to mising bpf_perf_event.h
Daniel Borkmann [Tue, 12 Dec 2017 01:25:31 +0000 (02:25 +0100)]
bpf: fix build issues on um due to mising bpf_perf_event.h

[ Note, this is a Git cherry-pick of the following commit:

    a23f06f06dbe ("bpf: fix build issues on um due to mising bpf_perf_event.h")

  ... for easier x86 PTI code testing and back-porting. ]

Since c895f6f703ad ("bpf: correct broken uapi for
BPF_PROG_TYPE_PERF_EVENT program type") um (uml) won't build
on i386 or x86_64:

  [...]
    CC      init/main.o
  In file included from ../include/linux/perf_event.h:18:0,
                   from ../include/linux/trace_events.h:10,
                   from ../include/trace/syscall.h:7,
                   from ../include/linux/syscalls.h:82,
                   from ../init/main.c:20:
  ../include/uapi/linux/bpf_perf_event.h:11:32: fatal error:
  asm/bpf_perf_event.h: No such file or directory #include
  <asm/bpf_perf_event.h>
  [...]

Lets add missing bpf_perf_event.h also to um arch. This seems
to be the only one still missing.

Fixes: c895f6f703ad ("bpf: correct broken uapi for BPF_PROG_TYPE_PERF_EVENT program type")
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Suggested-by: Richard Weinberger <richard@sigma-star.at>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Richard Weinberger <richard@sigma-star.at>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
6 years agoperf/x86: Enable free running PEBS for REGS_USER/INTR
Andi Kleen [Thu, 31 Aug 2017 21:46:30 +0000 (14:46 -0700)]
perf/x86: Enable free running PEBS for REGS_USER/INTR

[ Note, this is a Git cherry-pick of the following commit:

    a47ba4d77e12 ("perf/x86: Enable free running PEBS for REGS_USER/INTR")

  ... for easier x86 PTI code testing and back-porting. ]

Currently free running PEBS is disabled when user or interrupt
registers are requested. Most of the registers are actually
available in the PEBS record and can be supported.

So we just need to check for the supported registers and then
allow it: it is all except for the segment register.

For user registers this only works when the counter is limited
to ring 3 only, so this also needs to be checked.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20170831214630.21892-1-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
6 years agox86: Make X86_BUG_FXSAVE_LEAK detectable in CPUID on AMD
Rudolf Marek [Tue, 28 Nov 2017 21:01:06 +0000 (22:01 +0100)]
x86: Make X86_BUG_FXSAVE_LEAK detectable in CPUID on AMD

[ Note, this is a Git cherry-pick of the following commit:

    2b67799bdf25 ("x86: Make X86_BUG_FXSAVE_LEAK detectable in CPUID on AMD")

  ... for easier x86 PTI code testing and back-porting. ]

The latest AMD AMD64 Architecture Programmer's Manual
adds a CPUID feature XSaveErPtr (CPUID_Fn80000008_EBX[2]).

If this feature is set, the FXSAVE, XSAVE, FXSAVEOPT, XSAVEC, XSAVES
/ FXRSTOR, XRSTOR, XRSTORS always save/restore error pointers,
thus making the X86_BUG_FXSAVE_LEAK workaround obsolete on such CPUs.

Signed-Off-By: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Tested-by: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Link: https://lkml.kernel.org/r/bdcebe90-62c5-1f05-083c-eba7f08b2540@assembler.cz
Signed-off-by: Ingo Molnar <mingo@kernel.org>
6 years agox86/cpufeature: Add User-Mode Instruction Prevention definitions
Ricardo Neri [Mon, 6 Nov 2017 02:27:51 +0000 (18:27 -0800)]
x86/cpufeature: Add User-Mode Instruction Prevention definitions

[ Note, this is a Git cherry-pick of the following commit: (limited to the cpufeatures.h file)

    3522c2a6a4f3 ("x86/cpufeature: Add User-Mode Instruction Prevention definitions")

  ... for easier x86 PTI code testing and back-porting. ]

User-Mode Instruction Prevention is a security feature present in new
Intel processors that, when set, prevents the execution of a subset of
instructions if such instructions are executed in user mode (CPL > 0).
Attempting to execute such instructions causes a general protection
exception.

The subset of instructions comprises:

 * SGDT - Store Global Descriptor Table
 * SIDT - Store Interrupt Descriptor Table
 * SLDT - Store Local Descriptor Table
 * SMSW - Store Machine Status Word
 * STR  - Store Task Register

This feature is also added to the list of disabled-features to allow
a cleaner handling of build-time configuration.

Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Chen Yucong <slaoub@gmail.com>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Huang Rui <ray.huang@amd.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi V. Shankar <ravi.v.shankar@intel.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: ricardo.neri@intel.com
Link: http://lkml.kernel.org/r/1509935277-22138-7-git-send-email-ricardo.neri-calderon@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
6 years agoMerge commit 'upstream-x86-virt' into WIP.x86/mm
Ingo Molnar [Fri, 1 Dec 2017 09:34:04 +0000 (10:34 +0100)]
Merge commit 'upstream-x86-virt' into WIP.x86/mm

Merge a minimal set of virt cleanups, for a base for the MM isolation patches.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
6 years agoMerge branch 'upstream-acpi-fixes' into WIP.x86/pti.base
Ingo Molnar [Sun, 17 Dec 2017 12:09:31 +0000 (13:09 +0100)]
Merge branch 'upstream-acpi-fixes' into WIP.x86/pti.base

Signed-off-by: Ingo Molnar <mingo@kernel.org>
6 years agoMerge branch 'upstream-x86-selftests' into WIP.x86/pti.base
Ingo Molnar [Sun, 17 Dec 2017 12:04:28 +0000 (13:04 +0100)]
Merge branch 'upstream-x86-selftests' into WIP.x86/pti.base

Conflicts:
arch/x86/kernel/cpu/Makefile

Signed-off-by: Ingo Molnar <mingo@kernel.org>
6 years agoMerge commit 'upstream-x86-entry' into WIP.x86/mm
Ingo Molnar [Fri, 1 Dec 2017 09:32:48 +0000 (10:32 +0100)]
Merge commit 'upstream-x86-entry' into WIP.x86/mm

Pull in a minimal set of v4.15 entry code changes, for a base for the MM isolation patches.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
6 years agodrivers/misc/intel/pti: Rename the header file to free up the namespace
Ingo Molnar [Tue, 5 Dec 2017 13:14:47 +0000 (14:14 +0100)]
drivers/misc/intel/pti: Rename the header file to free up the namespace

We'd like to use the 'PTI' acronym for 'Page Table Isolation' - free up the
namespace by renaming the <linux/pti.h> driver header to <linux/intel-pti.h>.

(Also standardize the header guard name while at it.)

Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: J Freyensee <james_p_freyensee@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
6 years agosoc: ti: fix max dup length for kstrndup
Ma Shimiao [Sat, 16 Dec 2017 22:45:33 +0000 (14:45 -0800)]
soc: ti: fix max dup length for kstrndup

If source string longer than max, kstrndup will alloc max+1 space.
So, we should make sure the result will not over limit.

Signed-off-by: Ma Shimiao <mashimiao.fnst@cn.fujitsu.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
6 years agofirmware: ti_sci: Use %zu for size_t print format
Nishanth Menon [Sat, 16 Dec 2017 22:41:33 +0000 (14:41 -0800)]
firmware: ti_sci: Use %zu for size_t print format

mbox_msg->len is of type size_t and %d is incorrect format. Instead
use %zu for handling size_t correctly.

Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
6 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Linus Torvalds [Sat, 16 Dec 2017 21:43:08 +0000 (13:43 -0800)]
Merge tag 'for-linus' of git://git./linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "More fixes from testing done on the rc kernel, including more SELinux
  testing. Looking forward, lockdep found regression today in ipoib
  which is still being fixed.

  Summary:

   - Fix for SELinux on the umad SMI path. Some old hardware does not
     fill the PKey properly exposing another bug in the newer SELinux
     code.

   - Check the input port as we can exceed array bounds from this user
     supplied value

   - Users are unable to use the hash field support as they want due to
     incorrect checks on the field restrictions, correct that so the
     feature works as intended

   - User triggerable oops in the NETLINK_RDMA handler

   - cxgb4 driver fix for a bad interaction with CQ flushing in iser
     caused by patches in this merge window, and bad CQ flushing during
     normal close.

   - Unbalanced memalloc_noio in ipoib in an error path"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  IB/ipoib: Restore MM behavior in case of tx_ring allocation failure
  iw_cxgb4: only insert drain cqes if wq is flushed
  iw_cxgb4: only clear the ARMED bit if a notification is needed
  RDMA/netlink: Fix general protection fault
  IB/mlx4: Fix RSS hash fields restrictions
  IB/core: Don't enforce PKey security on SMI MADs
  IB/core: Bound check alternate path port number

6 years agoMerge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
Linus Torvalds [Sat, 16 Dec 2017 21:34:38 +0000 (13:34 -0800)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "Two bugfixes for the AT24 I2C eeprom driver and some minor corrections
  for I2C bus drivers"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: piix4: Fix port number check on release
  i2c: stm32: Fix copyrights
  i2c-cht-wc: constify platform_device_id
  eeprom: at24: change nvmem stride to 1
  eeprom: at24: fix I2C device selection for runtime PM

6 years agoMerge tag 'nfs-for-4.15-3' of git://git.linux-nfs.org/projects/anna/linux-nfs
Linus Torvalds [Sat, 16 Dec 2017 21:12:53 +0000 (13:12 -0800)]
Merge tag 'nfs-for-4.15-3' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client fixes from Anna Schumaker:
 "This has two stable bugfixes, one to fix a BUG_ON() when
  nfs_commit_inode() is called with no outstanding commit requests and
  another to fix a race in the SUNRPC receive codepath.

  Additionally, there are also fixes for an NFS client deadlock and an
  xprtrdma performance regression.

  Summary:

  Stable bugfixes:
   - NFS: Avoid a BUG_ON() in nfs_commit_inode() by not waiting for a
     commit in the case that there were no commit requests.
   - SUNRPC: Fix a race in the receive code path

  Other fixes:
   - NFS: Fix a deadlock in nfs client initialization
   - xprtrdma: Fix a performance regression for small IOs"

* tag 'nfs-for-4.15-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  SUNRPC: Fix a race in the receive code path
  nfs: don't wait on commit in nfs_commit_inode() if there were no commit requests
  xprtrdma: Spread reply processing over more CPUs
  nfs: fix a deadlock in nfs client initialization

6 years agoRevert "mm: replace p??_write with pte_access_permitted in fault + gup paths"
Linus Torvalds [Sat, 16 Dec 2017 02:53:22 +0000 (18:53 -0800)]
Revert "mm: replace p??_write with pte_access_permitted in fault + gup paths"

This reverts commits 5c9d2d5c269cc7da82b894e9, and e7fe7b5cae90.

We'll probably need to revisit this, but basically we should not
complicate the get_user_pages_fast() case, and checking the actual page
table protection key bits will require more care anyway, since the
protection keys depend on the exact state of the VM in question.

Particularly when doing a "remote" page lookup (ie in somebody elses VM,
not your own), you need to be much more careful than this was.  Dave
Hansen says:

 "So, the underlying bug here is that we now a get_user_pages_remote()
  and then go ahead and do the p*_access_permitted() checks against the
  current PKRU. This was introduced recently with the addition of the
  new p??_access_permitted() calls.

  We have checks in the VMA path for the "remote" gups and we avoid
  consulting PKRU for them. This got missed in the pkeys selftests
  because I did a ptrace read, but not a *write*. I also didn't
  explicitly test it against something where a COW needed to be done"

It's also not entirely clear that it makes sense to check the protection
key bits at this level at all.  But one possible eventual solution is to
make the get_user_pages_fast() case just abort if it sees protection key
bits set, which makes us fall back to the regular get_user_pages() case,
which then has a vma and can do the check there if we want to.

We'll see.

Somewhat related to this all: what we _do_ want to do some day is to
check the PAGE_USER bit - it should obviously always be set for user
pages, but it would be a good check to have back.  Because we have no
generic way to test for it, we lost it as part of moving over from the
architecture-specific x86 GUP implementation to the generic one in
commit e585513b76f7 ("x86/mm/gup: Switch GUP to the generic
get_user_page_fast() implementation").

Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: "Jérôme Glisse" <jglisse@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
6 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Fri, 15 Dec 2017 21:08:37 +0000 (13:08 -0800)]
Merge git://git./linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) Clamp timeouts to INT_MAX in conntrack, from Jay Elliot.

 2) Fix broken UAPI for BPF_PROG_TYPE_PERF_EVENT, from Hendrik
    Brueckner.

 3) Fix locking in ieee80211_sta_tear_down_BA_sessions, from Johannes
    Berg.

 4) Add missing barriers to ptr_ring, from Michael S. Tsirkin.

 5) Don't advertise gigabit in sh_eth when not available, from Thomas
    Petazzoni.

 6) Check network namespace when delivering to netlink taps, from Kevin
    Cernekee.

 7) Kill a race in raw_sendmsg(), from Mohamed Ghannam.

 8) Use correct address in TCP md5 lookups when replying to an incoming
    segment, from Christoph Paasch.

 9) Add schedule points to BPF map alloc/free, from Eric Dumazet.

10) Don't allow silly mtu values to be used in ipv4/ipv6 multicast, also
    from Eric Dumazet.

11) Fix SKB leak in tipc, from Jon Maloy.

12) Disable MAC learning on OVS ports of mlxsw, from Yuval Mintz.

13) SKB leak fix in skB_complete_tx_timestamp(), from Willem de Bruijn.

14) Add some new qmi_wwan device IDs, from Daniele Palmas.

15) Fix static key imbalance in ingress qdisc, from Jiri Pirko.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (76 commits)
  net: qcom/emac: Reduce timeout for mdio read/write
  net: sched: fix static key imbalance in case of ingress/clsact_init error
  net: sched: fix clsact init error path
  ip_gre: fix wrong return value of erspan_rcv
  net: usb: qmi_wwan: add Telit ME910 PID 0x1101 support
  pkt_sched: Remove TC_RED_OFFLOADED from uapi
  net: sched: Move to new offload indication in RED
  net: sched: Add TCA_HW_OFFLOAD
  net: aquantia: Increment driver version
  net: aquantia: Fix typo in ethtool statistics names
  net: aquantia: Update hw counters on hw init
  net: aquantia: Improve link state and statistics check interval callback
  net: aquantia: Fill in multicast counter in ndev stats from hardware
  net: aquantia: Fill ndev stat couters from hardware
  net: aquantia: Extend stat counters to 64bit values
  net: aquantia: Fix hardware DMA stream overload on large MRRS
  net: aquantia: Fix actual speed capabilities reporting
  sock: free skb in skb_complete_tx_timestamp on error
  s390/qeth: update takeover IPs after configuration change
  s390/qeth: lock IP table while applying takeover changes
  ...

6 years agoMerge tag 'usb-4.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Fri, 15 Dec 2017 21:03:25 +0000 (13:03 -0800)]
Merge tag 'usb-4.15-rc4' of git://git./linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some USB fixes for 4.15-rc4.

  There is the usual handful gadget/dwc2/dwc3 fixes as always, for
  reported issues. But the most important things in here is the core fix
  from Alan Stern to resolve a nasty security bug (my first attempt is
  reverted, Alan's was much cleaner), as well as a number of usbip fixes
  from Shuah Khan to resolve those reported security issues.

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

* tag 'usb-4.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: core: prevent malicious bNumInterfaces overflow
  Revert "USB: core: only clean up what we allocated"
  USB: core: only clean up what we allocated
  Revert "usb: gadget: allow to enable legacy drivers without USB_ETH"
  usb: gadget: webcam: fix V4L2 Kconfig dependency
  usb: dwc2: Fix TxFIFOn sizes and total TxFIFO size issues
  usb: dwc3: gadget: Fix PCM1 for ISOC EP with ep->mult less than 3
  usb: dwc3: of-simple: set dev_pm_ops
  usb: dwc3: of-simple: fix missing clk_disable_unprepare
  usb: dwc3: gadget: Wait longer for controller to end command processing
  usb: xhci: fix TDS for MTK xHCI1.1
  xhci: Don't add a virt_dev to the devs array before it's fully allocated
  usbip: fix stub_send_ret_submit() vulnerability to null transfer_buffer
  usbip: prevent vhci_hcd driver from leaking a socket pointer address
  usbip: fix stub_rx: harden CMD_SUBMIT path to handle malicious input
  usbip: fix stub_rx: get_pipe() to validate endpoint number
  tools/usbip: fixes potential (minor) "buffer overflow" (detected on recent gcc with -Werror)
  USB: uas and storage: Add US_FL_BROKEN_FUA for another JMicron JMS567 ID
  usb: musb: da8xx: fix babble condition handling

6 years agoMerge tag 'staging-4.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Fri, 15 Dec 2017 20:59:48 +0000 (12:59 -0800)]
Merge tag 'staging-4.15-rc4' of git://git./linux/kernel/git/gregkh/staging

Pull staging fixes from Greg KH:
 "Here are some small staging driver fixes for 4.15-rc4.

  One patch for the ccree driver to prevent an unitialized value from
  being returned to a caller, and the other fixes a logic error in the
  pi433 driver"

* tag 'staging-4.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: pi433: Fixes issue with bit shift in rf69_get_modulation
  staging: ccree: Uninitialized return in ssi_ahash_import()

6 years agoMerge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Linus Torvalds [Fri, 15 Dec 2017 20:56:23 +0000 (12:56 -0800)]
Merge tag 'for_linus' of git://git./linux/kernel/git/mst/vhost

Pull virtio regression fixes from Michael Tsirkin:
 "Fixes two issues in the latest kernel"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio_mmio: fix devm cleanup
  ptr_ring: fix up after recent ptr_ring changes

6 years agoMerge tag 'for-4.15/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device...
Linus Torvalds [Fri, 15 Dec 2017 20:53:37 +0000 (12:53 -0800)]
Merge tag 'for-4.15/dm-fixes' of git://git./linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:

 - fix a particularly nasty DM core bug in a 4.15 refcount_t conversion.

 - fix various targets to dm_register_target after module __init
   resources created; otherwise racing lvm2 commands could result in a
   NULL pointer during initialization of associated DM kernel module.

 - fix regression in bio-based DM multipath queue_if_no_path handling.

 - fix DM bufio's shrinker to reclaim more than one buffer per scan.

* tag 'for-4.15/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm bufio: fix shrinker scans when (nr_to_scan < retain_target)
  dm mpath: fix bio-based multipath queue_if_no_path handling
  dm: fix various targets to dm_register_target after module __init resources created
  dm table: fix regression from improper dm_dev_internal.count refcount_t conversion