Commit graph

695076 commits

Author SHA1 Message Date
Orson Zhai
d644437a1d tools/testing/selftests/sysctl: Add pre-check to the value of writes_strict
Sysctl test will fail in some items if the value of /proc/sys/kernel
/sysctrl_writes_strict is 0 as the default value in kernel older than v4.5.

Make this test more robus and compatible with older kernel by checking and
update writes_strict value and restore it when test is done.

Signed-off-by: Orson Zhai <orson.zhai@linaro.org>
Reviewed-by: Sumit Semwal <sumit.semwal@linaro.org>
Tested-by: Sumit Semwal <sumit.semwal@linaro.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2017-06-27 18:57:02 -06:00
Aleksandar Markovic
ddbfff7429 MIPS: math-emu: Handle zero accumulator case in MADDF and MSUBF separately
If accumulator value is zero, just return the value of previously
calculated product. This brings logic in MADDF/MSUBF implementation
closer to the logic in ADD/SUB case.

Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com>
Signed-off-by: Goran Ferenc <goran.ferenc@imgtec.com>
Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com>
Cc: James.Hogan@imgtec.com
Cc: Paul.Burton@imgtec.com
Cc: Raghu.Gandham@imgtec.com
Cc: Leonid.Yegoshin@imgtec.com
Cc: Douglas.Leung@imgtec.com
Cc: Petar.Jovanovic@imgtec.com
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/16512/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2017-06-28 02:54:30 +02:00
Lv Zheng
4625d752e6 ACPI: EC: Fix EC command visibility for dynamic debug
acpi_ec_cmd_string() currently is only enabled for "DEBUG" macro, but users
trend to use CONFIG_DYNAMIC_DEBUG and enable ec.c pr_debug() print-outs by
"dyndbg='file ec.c +p'". In this use case, all command names are turned
into UNDEF and the log is confusing. This affects bugzilla triage work.

This patch fixes this issue by enabling acpi_ec_cmd_string() for
CONFIG_DYNAMIC_DEBUG.

Tested-by: Wang Wendy <wendy.wang@intel.com>
Tested-by: Feng Chenzhou <chenzhoux.feng@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-28 02:28:22 +02:00
Lv Zheng
1ab69f27cb ACPI: EC: Fix an EC event IRQ storming issue
The EC event IRQ (SCI_EVT) can only be handled by submitting QR_EC. As the
EC driver handles SCI_EVT in a workqueue, after SCI_EVT is flagged and
before QR_EC is submitted, there is a period risking IRQ storming. EC IRQ
must be masked for this period but linux EC driver never does so.

No end user notices the IRQ storming and no developer fixes this known
issue because:

 1. The EC IRQ is always edge triggered GPE, and
 2. The kernel can execute no-op EC IRQ handler very fast.

For edge-triggered EC GPE platforms, it is only reported of post-resume EC
event lost issues, there won't be an IRQ storming. For level triggered EC
GPE platforms, fortunately the kernel is always fast enough to execute such
a no-op EC IRQ handler so that the IRQ handler won't be accumulated to
starve the task contexts, causing a real IRQ storming.

But the IRQ storming actually can still happen when:

 1. The EC IRQ performs like level triggered GPE, and
 2. The kernel EC debugging log is turned on but the console is slow enough.

There are more and more platforms using EC GPE as wake GPE where the EC GPE
is likely designed as level triggered. Then when EC debugging log is
enabled, the EC IRQ handler is no longer a no-op but dumps IRQ status to
the consoles. If the consoles are slow enough, the EC IRQs can arrive much
faster than executing the handler. Finally the accumulated EC event IRQ
handlers starve the task contexts, causing the IRQ storming to occur, and
the kernel hangs can be observed during boot/resume.

This patch fixes this issue by masking EC IRQ for this period:

 1. Begins when there is an SCI_EVT IRQ pending, and
 2. Ends when there is a QR_EC completed (SCI_EVT acknowledged).

Tested-by: Wang Wendy <wendy.wang@intel.com>
Tested-by: Feng Chenzhou <chenzhoux.feng@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-28 02:28:21 +02:00
Geliang Tang
0752e4028c powerpc/nvram: use memdup_user
Use memdup_user() helper instead of open-coding to simplify the code.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
2017-06-27 17:02:50 -07:00
Geliang Tang
077090af33 pstore: use memdup_user
Use memdup_user() helper instead of open-coding to simplify the code.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
2017-06-27 17:02:36 -07:00
Julia Lawall
e9d5d4a0c1 drbd: Drop unnecessary static
Drop static on a local variable, when the variable is initialized before
any use, on every possible execution path through the function.  The
static has no benefit, and dropping it reduces the code size.

The semantic patch that fixes this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@bad exists@
position p;
identifier x;
type T;
@@

static T x@p;
...
x = <+...x...+>

@@
identifier x;
expression e;
type T;
position p != bad.p;
@@

-static
 T x@p;
 ... when != x
     when strict
?x = e;
// </smpl>

The change in code size is indicates by the following output from the size
command.

before:
   text    data     bss     dec     hex filename
  67299    2291    1056   70646   113f6 drivers/block/drbd/drbd_nl.o

after:
   text    data     bss     dec     hex filename
  67283    2291    1056   70630   113e6 drivers/block/drbd/drbd_nl.o

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Roland Kammerer <roland.kammerer@linbit.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2017-06-27 17:56:50 -06:00
Rafael J. Wysocki
de3ef1eb1c PM / core: Drop run_wake flag from struct dev_pm_info
The run_wake flag in struct dev_pm_info is used to indicate whether
or not the device is capable of generating remote wakeup signals at
run time (or in the system working state), but the distinction
between runtime remote wakeup and system wakeup signaling has always
been rather artificial.  The only practical reason for it to exist
at the core level was that ACPI and PCI treated those two cases
differently, but that's not the case any more after recent changes.

For this reason, get rid of the run_wake flag and, when applicable,
use device_set_wakeup_capable() and device_can_wakeup() instead of
device_set_run_wake() and device_run_wake(), respectively.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
2017-06-28 01:52:52 +02:00
Rafael J. Wysocki
0847684cfc PCI / PM: Simplify device wakeup settings code
After previous changes it is not necessary to distinguish between
device wakeup for run time and device wakeup from system sleep states
any more, so rework the PCI device wakeup settings code accordingly.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
2017-06-28 01:52:45 +02:00
Rafael J. Wysocki
8370c2dc4c PCI / PM: Drop pme_interrupt flag from struct pci_dev
The pme_interrupt flag in struct pci_dev is set when PMEs generated
by the device are going to be signaled via root port PME interrupts.

Ironically enough, that information is only used by the code setting
up device wakeup through ACPI which returns as soon as it sees the
pme_interrupt flag set while setting up "remote runtime wakeup".
That is questionable, however, because in theory there may be PCIe
devices using out-of-band PME signaling under root ports handled
by the native PME code or devices requiring wakeup power setup to be
carried out by AML.  For such devices, ACPI wakeup should be invoked
regardless of whether or not native PME signaling is used in general.

For this reason, drop the pme_interrupt flag and rework the code
using it which then allows the ACPI-based device wakeup handling
in PCI to be consolidated to use one code path for both "runtime
remote wakeup" and system wakeup (from sleep states).

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
2017-06-28 01:52:38 +02:00
Rafael J. Wysocki
4d183d0419 ACPI / PM: Consolidate device wakeup settings code
Currently, there are two separate ways of handling device wakeup
settings in the ACPI core, depending on whether this is runtime
wakeup or system wakeup (from sleep states).  However, after the
previous commit eliminating the run_wake ACPI device wakeup flag,
there is no difference between the two any more at the ACPI level,
so they can be combined.

For this reason, introduce acpi_pm_set_device_wakeup() to replace both
acpi_pm_device_run_wake() and acpi_pm_device_sleep_wake() and make it
check the ACPI device object's wakeup.valid flag to determine whether
or not the device can be set up to generate wakeup signals.

Also notice that zpodd_enable/disable_run_wake() only call
device_set_run_wake() because acpi_pm_device_run_wake() called
device_run_wake(), which is not done by acpi_pm_set_device_wakeup(),
so drop the now redundant device_set_run_wake() calls from there.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
2017-06-28 01:52:32 +02:00
Rafael J. Wysocki
a1a66393e3 ACPI / PM: Drop run_wake from struct acpi_device_wakeup_flags
The run_wake flag in struct acpi_device_wakeup_flags stores the
information on whether or not the device can generate wakeup
signals at run time, but in ACPI that really is equivalent to
being able to generate wakeup signals at all.

In fact, run_wake will always be set after successful executeion of
acpi_setup_gpe_for_wake(), but if that fails, the device will not be
able to use a wakeup GPE at all, so it won't be able to wake up the
systems from sleep states too.  Hence, run_wake actually means that
the device is capable of triggering wakeup and so it is equivalent
to the valid flag.

For this reason, drop run_wake from struct acpi_device_wakeup_flags
and make sure that the valid flag is only set if
acpi_setup_gpe_for_wake() has been successful.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
2017-06-28 01:52:15 +02:00
Dan Williams
5d61e43b39 dax: remove default copy_from_iter fallback
Require all dax-drivers to register a ->copy_from_iter() operation so
that it is clear which dax_operations are optional and which must be
implemented for filesystem-dax to operate.

Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-06-27 16:44:27 -07:00
Dan Williams
c9e582aa68 libnvdimm, nfit: enable support for volatile ranges
Allow volatile nfit ranges to participate in all the same infrastructure
provided for persistent memory regions. A resulting resulting namespace
device will still be called "pmem", but the parent region type will be
"nd_volatile". This is in preparation for disabling the dax ->flush()
operation in the pmem driver when it is hosted on a volatile range.

Cc: Jan Kara <jack@suse.cz>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-06-27 16:44:13 -07:00
Keith Busch
ebef736857 nvme/pci: Fix stuck nvme reset
The controller state is set to resetting prior to disabling the
controller, so this patch accounts for that state when deciding if it
needs to freeze the queues. Without this, an 'nvme reset /dev/nvme0'
blocks forever because the queues were never frozen.

Fixes: 82b057caef ("nvme-pci: fix multiple ctrl removal scheduling")
Signed-off-by: Keith Busch <keith.busch@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2017-06-27 17:44:05 -06:00
Dan Williams
c00b396ef7 libnvdimm, pmem: fix persistence warning
The pmem driver assumes if platform firmware describes the memory
devices associated with a persistent memory range and
CONFIG_ARCH_HAS_PMEM_API=y that it has all the mechanism necessary to
flush data to a power-fail safe zone. We warn if the firmware does not
describe memory devices, but we also need to warn if the architecture
does not claim pmem support.

Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-06-27 16:44:01 -07:00
Dan Williams
ca6a4657e5 x86, libnvdimm, pmem: remove global pmem api
Now that all callers of the pmem api have been converted to dax helpers that
call back to the pmem driver, we can remove include/linux/pmem.h and
asm/pmem.h.

Cc: <x86@kernel.org>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Toshi Kani <toshi.kani@hpe.com>
Cc: Oliver O'Halloran <oohall@gmail.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-06-27 16:29:54 -07:00
Dan Williams
f2b612578e x86, libnvdimm, pmem: move arch_invalidate_pmem() to libnvdimm
Kill this globally defined wrapper and move to libnvdimm so that we can
ultimately remove include/linux/pmem.h and asm/pmem.h.

Cc: <x86@kernel.org>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2017-06-27 16:29:00 -07:00
Logan Gunthorpe
393958d0d9 switchtec: Add device IDs for additional Switchtec products
The switchtec driver also supports the PAX, PFXL and PFXI products which
have the same management interface.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
2017-06-27 18:25:06 -05:00
Logan Gunthorpe
079e3bc588 switchtec: Add "running" status flag to fw partition info ioctl
This flag lets userspace know which firmware partitions are currently in
use as opposed to just active.  "Active" means they will be in use for the
next reboot, whereas "running" means they are currently in use.

If an old kernel is in use, or the firmware doesn't support these fields,
the new flag will not be set in the output.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
2017-06-27 18:23:14 -05:00
Suman Anna
b0af7b7dbe remoteproc/keystone: Fix circular dependencies for ARM configs
Drop the dependency on RESET_CONTROLLER for the Keystone remoteproc
driver to resolve some circular dependencies around different choices
for RESET_CONTROLLER on common ARM configs. This dependency is
inherent as the RESET_CONTROLLER will be enabled due to the enabled
ARCH_HAS_RESET_CONTROLLER for ARCH_KEYSTONE.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-06-27 16:21:34 -07:00
Suman Anna
e3f37c5ed7 remoteproc: Drop redundant REMOTEPROC dependency from driver Kconfigs
All the remoteproc platform driver Kconfig symbols are defined and
included under an if REMOTEPROC condition, so the dependency on
REMOTEPROC is implicit and they do not need an explicit 'depends
on REMOTEPROC' line. So, clean these up.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-06-27 16:01:14 -07:00
Suman Anna
384700d465 remoteproc: Drop VIRTUALIZATION dependency from REMOTEPROC
A dependency to VIRTUALIZATION has been added to REMOTEPROC in v3.10
kernel in commit b9777859ec ("remoteproc: fix kconfig dependencies
for VIRTIO") to resolve Kconfig warnings due to the inclusion of the
virtio configuration file from the ARM's KVM config file. The KVM
config was fixed properly in the subsequent release in commit
8bd4ffd6b3 ("ARM: kvm: don't include drivers/virtio/Kconfig").
So, drop this unneeded VIRTUALIZATION dependency from REMOTEPROC.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-06-27 16:01:00 -07:00
Suman Anna
82e484dfef rpmsg: Drop VIRTUALIZATION dependency from RPMSG_VIRTIO
A dependency to VIRTUALIZATION has been added to RPMSG_VIRTIO (back
when it was named RPMSG) in v3.10 kernel in commit 397944df32
("rpmsg: fix kconfig dependencies for VIRTIO") to resolve Kconfig
warnings due to the inclusion of the virtio configuration file from
the ARM's KVM config file. The KVM config was fixed properly in the
subsequent release in commit 8bd4ffd6b3 ("ARM: kvm: don't include
drivers/virtio/Kconfig"). So, drop this unneeded VIRTUALIZATION
dependency from RPMSG_VIRTIO.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-06-27 16:00:48 -07:00
Arvind Yadav
dbb1d8b70c PM / QoS: constify *_attribute_group.
File size before:
   text	   data	    bss	    dec	    hex	filename
   3890	   1152	      8	   5050	   13ba	drivers/base/power/sysfs.o

File size After adding 'const':
   text	   data	    bss	    dec	    hex	filename
   4250	    800	      8	   5058	   13c2	drivers/base/power/sysfs.o

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-28 00:45:25 +02:00
David Wu
1a99d0c796 PM / AVS: rockchip-io: add io selectors and supplies for rk3228
This adds the necessary data for handling io voltage domains on the rk3228.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-28 00:40:17 +02:00
Adam Lessnau
edbdabc623 powercap/RAPL: prevent overridding bits outside of the mask
Fixes wrong bits shift operation in the rapl_write_data_raw function, which
might cause overridding bits outside of the mask.

For example, writing new TIME_WINDOW1 value can override POWER_LIMIT1.

Signed-off-by: Adam Lessnau <adam.lessnau@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-28 00:38:34 +02:00
Krzysztof Kozlowski
cbcba35dba PM / sysfs: Constify attribute groups
Local instances of struct attribute_group are not modified so they can
be made const to increase code safeness.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-28 00:27:14 +02:00
Krzysztof Kozlowski
e3771fa98e PM: Constify info string used in messages
The 'info' string appearing in many places points to a .rodata string so
it should be passes as pointer to const.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-28 00:27:14 +02:00
Krzysztof Kozlowski
952856db90 PM: Constify returned PM event name
The pm_verb() returns a pointer to string from .rodata so it should be
marked as const.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-28 00:27:14 +02:00
Krzysztof Kozlowski
d8600c8b0c PM / Domains: Constify genpd pointer
Mark pointer to struct generic_pm_domain const (either passed in
argument or used localy in a function), whenever it is not modifed by
the function itself.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-28 00:24:21 +02:00
Luis Oliveira
5b6d721b26 i2c: designware: enable SLAVE in platform module
- Slave mode selected in platform module if the support is detected in
  the DT.

Signed-off-by: Luis Oliveira <lolivei@synopsys.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-06-27 23:37:07 +02:00
Luis Oliveira
9f3e065c54 i2c: designware: add SLAVE mode functions
- Changes in Kconfig to enable I2C_DESIGNWARE_SLAVE support
- Slave functions added to core library file
- Slave abort sources added to common source file
- New driver: i2c-designware-slave added
- Changes in the Makefile to compile the I2C_DESIGNWARE_SLAVE module
  when supported by the architecture.

All the SLAVE flow is added but it is not enabled via platform
driver.

Signed-off-by: Luis Oliveira <lolivei@synopsys.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
[wsa: made a function static and one-lined a message]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-06-27 23:36:28 +02:00
Karl Beldan
25d8b92e0a MIPS: head: Reorder instructions missing a delay slot
In this sequence the 'move' is assumed in the delay slot of the 'beq',
but head.S is in reorder mode and the former gets pushed one 'nop'
farther by the assembler.

The corrected behavior made booting with an UHI supplied dtb erratic.

Fixes: 15f37e1588 ("MIPS: store the appended dtb address in a variable")
Signed-off-by: Karl Beldan <karl.beldan+oss@gmail.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/16614/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2017-06-27 23:35:21 +02:00
Shawn Guo
86766a3e15 i2c: zx2967: drop COMPILE_TEST dependency
0-DAY kernel test reports the following build issue on IA64 architecture
with allmodconfig.

   drivers/i2c/busses/i2c-zx2967.c: In function 'zx2967_i2c_writesb':
>> drivers/i2c/busses/i2c-zx2967.c:87:2: error: implicit declaration of function 'writesb' [-Werror=implicit-function-declaration]
     writesb(i2c->reg_base + reg, data, len);
     ^~~~~~~
   drivers/i2c/busses/i2c-zx2967.c: In function 'zx2967_i2c_readsb':
>> drivers/i2c/busses/i2c-zx2967.c:93:2: error: implicit declaration of function 'readsb' [-Werror=implicit-function-declaration]
     readsb(i2c->reg_base + reg, data, len);
     ^~~~~~
   cc1: some warnings being treated as errors

It's caused by that writesb/readsb are unavailable on IA64 architecture.
Let's drop COMPILE_TEST dependency to avoid the build issue.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-06-27 23:21:01 +02:00
Wolfram Sang
c3518a4ed8 i2c: zx2967: always use the same device when printing errors
Let's always use the platform device for dev_* and not sometimes the
adapter device as well. Also fix this checkpatch check:

CHECK: Macro argument 'i2c' may be better as '(i2c)' to avoid precedence issues

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-06-27 23:21:00 +02:00
Chris Packham
df40f24775 i2c: pca-platform: use dev_warn/dev_info instead of printk
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-06-27 23:21:00 +02:00
Kees Cook
3d867f6c5f ACPICA: Use designated initializers
The struct layout randomization plugin detects and randomizes any structs
that contain only function pointers. Once layout is randomized, all
initialization must be designated or the compiler will misalign the
assignments. This switches all the ACPICA function pointer struct to
use designated initializers, using the proposed upstream ACPICA macro:
https://github.com/acpica/acpica/pull/248/

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-27 22:27:24 +02:00
Rafael J. Wysocki
a976c2951d Merge back ACPICA material for v4.13. 2017-06-27 22:26:44 +02:00
Bob Moore
16b9951f65 ACPICA: Update version to 20170531
ACPICA commit fde696a3f0aed66ff7439744bbcd23bc165deb88

Version 20170531.

Link: fde696a3
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-27 22:25:28 +02:00
Bob Moore
1537f3037c ACPICA: Update a couple of debug output messages
ACPICA commit 809c1766598c7f3decaeeba2c6ed603c538d0270

Cleanup output.

Link: 809c1766
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-27 22:25:28 +02:00
Bob Moore
fd13aaa850 ACPICA: acpiexec: enhance local signal handler
ACPICA commit ffef4ae9a1b6032ebadeab2c2b806f0e585f0006

Add support for SIGSEGV
Improve/cleanup SIGINT handling

Link: ffef4ae9
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-27 22:25:27 +02:00
Bob Moore
9c0b6c49e8 ACPICA: Simplify output for the ACPI Debug Object
ACPICA commit ea08cda9859d9f758f4832400b2d559847c2d52a

Cleanup the output, change [Acpi Debug] to Acpi Debug:

Link: ea08cda9
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-27 22:25:27 +02:00
Bob Moore
fdf8707bd5 ACPICA: Unix application OSL: Correctly handle control-c (EINTR)
ACPICA commit dfbb87c3a96cfd007375f34a96e6f4a8ee477f97

Handle EINTR from a sem_wait operation. Ignore a control-c.

Link: dfbb87c3
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-27 22:25:26 +02:00
Bob Moore
b9ef2ab058 ACPICA: Improvements for debug output only
ACPICA commit c3f798b7b0e4f2403d3ce0cc1107ab0932efe1e3

Changes to debug print and debug function tracing.

Link: c3f798b7
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-27 22:25:26 +02:00
Erik Schmauss
a9d8ea79d7 ACPICA: Disassembler: allow conflicting external declarations to be emitted.
ACPICA commit 0ed9f2e2ccc112439eaa355b5952a05d6fdb7814

An external declaration is a conflicting declaration when a name has
been declared as an external and a named object within the same file.

Link: 0ed9f2e2
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-27 22:25:25 +02:00
Erik Schmauss
bdcf4cdbdc ACPICA: Disassembler: add external op to namespace on first pass
ACPICA commit 117be4819588df3b7146f6f01723639b1d61e775

By doing so, external control method resolutions can be resolved like
normal control methods. This eliminates the need to reparse the aml
all over again for external control methods that were encoded within
the aml with the 0x15 bytecode.

Link: 117be481
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-27 22:25:25 +02:00
Erik Schmauss
2f8c1141da ACPICA: Disassembler: prevent external op's from opening a new scope
ACPICA commit c512c2bfcce65b8e8f37d549ac2fa4a1e0182e46

Since Externals could be of ACPI_TYPE_METHOD, there is a possibility
that the acpi_ns_lookup may cause a new scope to be opened. Therefore,
disable opening the scope for all acpi_ns_lookup invocations that deal
with externals.

Link: c512c2bf
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-27 22:25:24 +02:00
Erik Schmauss
e6b6ea37b8 ACPICA: Changed Gbl_disasm_flag to acpi_gbl_disasm_flag
ACPICA commit 0e0a87111f280c197661689979b2c48443b0326c

This is a name change as well as a change in the scope of this flag.
This is done so that it can be referenced in the dispatcher.

Link: 0e0a8711
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-27 22:25:23 +02:00
Erik Schmauss
d79e03892b ACPICA: Changing External to a named object
ACPICA commit 0d5dd42fd7d5129835b6d92250378a962eb73cb3

This is done so that the aml parser will build the parse tree of
External Op as a named object. This is done to streamline creation
of external op parse nodes and facilitate namespace resolution of
externals.

Link: 0d5dd42f
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-27 22:25:23 +02:00