mirror of https://gitee.com/openkylin/linux.git
464 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Mauro Carvalho Chehab
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baa293e954 |
docs: driver-api: add a series of orphaned documents
There are lots of documents under Documentation/*.txt and a few other orphan documents elsehwere that belong to the driver-API book. Move them to their right place. Reviewed-by: Cornelia Huck <cohuck@redhat.com> # vfio-related parts Acked-by: Logan Gunthorpe <logang@deltatee.com> # switchtec Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> |
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Thomas Gleixner
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660662f857 |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 150
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 42 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190524100845.259718220@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Thomas Gleixner
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3e0a4e8580 |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 118
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 44 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190523091651.032047323@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Thomas Gleixner
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74ba9207e1 |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 675 mass ave cambridge ma 02139 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 441 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520071858.739733335@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Thomas Gleixner
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ec8f24b7fa |
treewide: Add SPDX license identifier - Makefile/Kconfig
Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Sakari Ailus
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d75f773c86 |
treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively
%pF and %pf are functionally equivalent to %pS and %ps conversion specifiers. The former are deprecated, therefore switch the current users to use the preferred variant. The changes have been produced by the following command: git grep -l '%p[fF]' | grep -v '^\(tools\|Documentation\)/' | \ while read i; do perl -i -pe 's/%pf/%ps/g; s/%pF/%pS/g;' $i; done And verifying the result. Link: http://lkml.kernel.org/r/20190325193229.23390-1-sakari.ailus@linux.intel.com Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: linux-arm-kernel@lists.infradead.org Cc: sparclinux@vger.kernel.org Cc: linux-um@lists.infradead.org Cc: xen-devel@lists.xenproject.org Cc: linux-acpi@vger.kernel.org Cc: linux-pm@vger.kernel.org Cc: drbd-dev@lists.linbit.com Cc: linux-block@vger.kernel.org Cc: linux-mmc@vger.kernel.org Cc: linux-nvdimm@lists.01.org Cc: linux-pci@vger.kernel.org Cc: linux-scsi@vger.kernel.org Cc: linux-btrfs@vger.kernel.org Cc: linux-f2fs-devel@lists.sourceforge.net Cc: linux-mm@kvack.org Cc: ceph-devel@vger.kernel.org Cc: netdev@vger.kernel.org Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: David Sterba <dsterba@suse.com> (for btrfs) Acked-by: Mike Rapoport <rppt@linux.ibm.com> (for mm/memblock.c) Acked-by: Bjorn Helgaas <bhelgaas@google.com> (for drivers/pci) Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Petr Mladek <pmladek@suse.com> |
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Erik Schmauss
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c163f90cc8 |
ACPI/ACPICA: Trivial: fix spelling mistakes and fix whitespace formatting
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Linus Torvalds
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96d4f267e4 |
Remove 'type' argument from access_ok() function
Nobody has actually used the type (VERIFY_READ vs VERIFY_WRITE) argument
of the user address range verification function since we got rid of the
old racy i386-only code to walk page tables by hand.
It existed because the original 80386 would not honor the write protect
bit when in kernel mode, so you had to do COW by hand before doing any
user access. But we haven't supported that in a long time, and these
days the 'type' argument is a purely historical artifact.
A discussion about extending 'user_access_begin()' to do the range
checking resulted this patch, because there is no way we're going to
move the old VERIFY_xyz interface to that model. And it's best done at
the end of the merge window when I've done most of my merges, so let's
just get this done once and for all.
This patch was mostly done with a sed-script, with manual fix-ups for
the cases that weren't of the trivial 'access_ok(VERIFY_xyz' form.
There were a couple of notable cases:
- csky still had the old "verify_area()" name as an alias.
- the iter_iov code had magical hardcoded knowledge of the actual
values of VERIFY_{READ,WRITE} (not that they mattered, since nothing
really used it)
- microblaze used the type argument for a debug printout
but other than those oddities this should be a total no-op patch.
I tried to fix up all architectures, did fairly extensive grepping for
access_ok() uses, and the changes are trivial, but I may have missed
something. Any missed conversion should be trivially fixable, though.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds
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3036bc4536 |
media updates for v4.18-rc1
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Christoph Hellwig
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3f3942aca6 |
proc: introduce proc_create_single{,_data}
Variants of proc_create{,_data} that directly take a seq_file show
callback and drastically reduces the boilerplate code in the callers.
All trivial callers converted over.
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Mauro Carvalho Chehab
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da112f1399 |
media: sound, isapnp: allow building more drivers with COMPILE_TEST
Drivers that depend on ISAPNP currently can't be built with COMPILE_TEST. However, looking at isapnp.h, there are already stubs there to allow drivers to include it even when isa PNP is not supported. So, remove such dependencies when COMPILE_TEST. Acked-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> |
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Vasyl Gomonovych
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846583ce15 |
PNP: pnpbios: Use PTR_ERR_OR_ZERO()
Fix ptr_ret.cocci warnings: drivers/pnp/pnpbios/core.c:584:1-3: WARNING: PTR_ERR_OR_ZERO can be used Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR Generated by: scripts/coccinelle/api/ptr_ret.cocci Signed-off-by: Vasyl Gomonovych <gomonovych@gmail.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Sergey Senozhatsky
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245fe15e47 |
PNP: remove unneeded kallsyms include
The file was converted from print_fn_descriptor_symbol()
to %pF some time ago (
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Greg Kroah-Hartman
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b24413180f |
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Christoph Hellwig
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6faadbbb7f |
dmi: Mark all struct dmi_system_id instances const
... and __initconst if applicable. Based on similar work for an older kernel in the Grsecurity patch. [JD: fix toshiba-wmi build] [JD: add htcpen] [JD: move __initconst where checkscript wants it] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jean Delvare <jdelvare@suse.de> |
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Linus Torvalds
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c7d28eca1d |
This is the bulk of GPIO changes for the v4.13 series:
Core:
- Export add/remove for lookup tables so that modules can export GPIO
descriptor tables.
- Handle GPIO sleep states: it is now possible to flag that a GPIO line
may loose its state during suspend/resume of the system to save
power. This is used in the Wolfson Micro Arizona driver.
- ACPI-based GPIO was tightened up a lot around the edges.
- Use bitmap_fill() to speed up a loop.
New drivers:
- Exar XRA1403 SPI-based GPIO.
- MVEBU driver now supports Armada 7K and 8K.
- LP87565 PMIC GPIO.
- Renesas R-CAR R8A7743 (RZ/G1M).
- The new IOT2040 8250 serial/GPIO also comes in through this
changeset.
Substantial driver changes:
- Seriously fix the Exar 8250 GPIO portions to work.
- The MCP23S08 was moved out to a pin control driver.
- Convert MEVEBU to use regmap for register access.
- Drop Vulcan support from the Broadcom driver.
- Serious cleanup and improvement of the mockup driver, giving us a
better test coverage.
Misc:
- Lots of janitorial clean up.
- A bunch of documentation fixes.
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Merge tag 'gpio-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for the v4.13 series.
Some administrativa:
I have a slew of 8250 serial patches and the new IOT2040 serial+GPIO
driver coming in through this tree, along with a whole bunch of Exar
8250 fixes. These are ACKed by Greg and also hit drivers/platform/*
where they are ACKed by Andy Shevchenko.
Speaking about drivers/platform/* there is also a bunch of ACPI stuff
coming through that route, again ACKed by Andy.
The MCP23S08 changes are coming in here as well. You already have the
commits in your tree, so this is just a result of sharing an immutable
branch between pin control and GPIO.
Core:
- Export add/remove for lookup tables so that modules can export GPIO
descriptor tables.
- Handle GPIO sleep states: it is now possible to flag that a GPIO
line may loose its state during suspend/resume of the system to
save power. This is used in the Wolfson Micro Arizona driver.
- ACPI-based GPIO was tightened up a lot around the edges.
- Use bitmap_fill() to speed up a loop.
New drivers:
- Exar XRA1403 SPI-based GPIO.
- MVEBU driver now supports Armada 7K and 8K.
- LP87565 PMIC GPIO.
- Renesas R-CAR R8A7743 (RZ/G1M).
- The new IOT2040 8250 serial/GPIO also comes in through this
changeset.
Substantial driver changes:
- Seriously fix the Exar 8250 GPIO portions to work.
- The MCP23S08 was moved out to a pin control driver.
- Convert MEVEBU to use regmap for register access.
- Drop Vulcan support from the Broadcom driver.
- Serious cleanup and improvement of the mockup driver, giving us a
better test coverage.
Misc:
- Lots of janitorial clean up.
- A bunch of documentation fixes"
* tag 'gpio-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (70 commits)
serial: exar: Add support for IOT2040 device
gpio-exar/8250-exar: Make set of exported GPIOs configurable
platform: Accept const properties
serial: exar: Factor out platform hooks
gpio-exar/8250-exar: Rearrange gpiochip parenthood
gpio: exar: Fix iomap request
gpio-exar/8250-exar: Do not even instantiate a GPIO device for Commtech cards
serial: uapi: Add support for bus termination
gpio: rcar: Add R8A7743 (RZ/G1M) support
gpio: gpio-wcove: Fix GPIO control register offset calculation
gpio: lp87565: Add support for GPIO
gpio: dwapb: fix missing first irq for edgeboth irq type
MAINTAINERS: Take maintainership for GPIO ACPI support
gpio: exar: Fix reading of directions and values
gpio: exar: Allocate resources on behalf of the platform device
gpio-exar/8250-exar: Fix passing in of parent PCI device
gpio: mockup: use devm_kcalloc() where applicable
gpio: mockup: add myself as author
gpio: mockup: improve the error message
gpio: mockup: don't return magic numbers from probe()
...
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Rafael J. Wysocki
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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> |
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Andy Shevchenko
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193d092939 |
PNP / ACPI: remove FSF address
There is no point in keeping an address in the file since it's subject to change. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> |
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Andy Shevchenko
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1d7f2cdd56 |
PNP / ACPI: join strings back for better maintenance
Simply join string literals back for better maintenance and debugging. No functional changes intended. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> |
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Jagadish Krishnamoorthy
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2a56e9195d |
PNP / ACPI: add support for GpioInt resource type
The PNP ACPI driver parses ACPI interrupt resource but not GpioInt resource. When the firmware passes GpioInt resource for IRQ the PNP ACPI driver ignores it and hence the interrupt for the particular driver will not work. One such example is 8042 keyboard which uses PNP driver for obtaining the interrupt resource. On Intel Braswell project GpioInt is used instead of interrupt resource and the keyboard driver fails to register interrupt. Fix the issue by parsing GpioInt resource type. Signed-off-by: Jagadish Krishnamoorthy <jagadish.krishnamoorthy@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> [Fixed a parenthesis coding style thing] Signed-off-by: Linus Walleij <linus.walleij@linaro.org> |
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Thomas Garnier
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69218e4799 |
x86: Remap GDT tables in the fixmap section
Each processor holds a GDT in its per-cpu structure. The sgdt instruction gives the base address of the current GDT. This address can be used to bypass KASLR memory randomization. With another bug, an attacker could target other per-cpu structures or deduce the base of the main memory section (PAGE_OFFSET). This patch relocates the GDT table for each processor inside the fixmap section. The space is reserved based on number of supported processors. For consistency, the remapping is done by default on 32 and 64-bit. Each processor switches to its remapped GDT at the end of initialization. For hibernation, the main processor returns with the original GDT and switches back to the remapping at completion. This patch was tested on both architectures. Hibernation and KVM were both tested specially for their usage of the GDT. Thanks to Boris Ostrovsky <boris.ostrovsky@oracle.com> for testing and recommending changes for Xen support. Signed-off-by: Thomas Garnier <thgarnie@google.com> Cc: Alexander Potapenko <glider@google.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Borislav Petkov <bp@suse.de> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Kosina <jikos@kernel.org> Cc: Joerg Roedel <joro@8bytes.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Juergen Gross <jgross@suse.com> Cc: Kees Cook <keescook@chromium.org> Cc: Len Brown <len.brown@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Lorenzo Stoakes <lstoakes@gmail.com> Cc: Luis R . Rodriguez <mcgrof@kernel.org> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Michal Hocko <mhocko@suse.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: Rafael J . Wysocki <rjw@rjwysocki.net> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Stanislaw Gruszka <sgruszka@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Cc: kasan-dev@googlegroups.com Cc: kernel-hardening@lists.openwall.com Cc: kvm@vger.kernel.org Cc: lguest@lists.ozlabs.org Cc: linux-doc@vger.kernel.org Cc: linux-efi@vger.kernel.org Cc: linux-mm@kvack.org Cc: linux-pm@vger.kernel.org Cc: xen-devel@lists.xenproject.org Cc: zijun_hu <zijun_hu@htc.com> Link: http://lkml.kernel.org/r/20170314170508.100882-2-thgarnie@google.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Greg Kroah-Hartman
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377e7a27c0 |
Make static usermode helper binaries constant
There are a number of usermode helper binaries that are "hard coded" in the kernel today, so mark them as "const" to make it harder for someone to change where the variables point to. Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Thomas Sailer <t.sailer@alumni.ethz.ch> Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com> Cc: Johan Hovold <johan@kernel.org> Cc: Alex Elder <elder@kernel.org> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Jeff Layton <jlayton@poochiereds.net> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Linus Torvalds
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7c0f6ba682 |
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
This was entirely automated, using the script by Al:
PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>'
sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \
$(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h)
to do the replacement at the end of the merge window.
Requested-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Paul Gortmaker
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e4dca0febf |
PNP: isapnp: make core more explicitly non-modular
The Makefile currently controlling compilation of this code is: obj-y += pnp.o pnp-y := core.o compat.o ...meaning that it currently is not being built as a module by anyone. Lets remove the couple traces of modular infrastructure use, so that when reading the driver there is no doubt it is builtin-only. Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code. We also delete the MODULE_LICENSE tag etc. since all that information is already contained at the top of the file in the comments. We don't replace module.h with init.h since the file already has that. But we do add moduleparam.h since the file does use module_param(). Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: Jaroslav Kysela <perex@perex.cz> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Randy Dunlap
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61a67a366d |
PNP: pnpbios: add header file to fix build errors
Fix build errors due to missing header file:
../drivers/pnp/pnpbios/core.c: In function 'pnp_dock_event':
../drivers/pnp/pnpbios/core.c:141:2: error: implicit declaration of function 'call_usermodehelper' [-Werror=implicit-function-declaration]
value = call_usermodehelper(argv [0], argv, envp, UMH_WAIT_EXEC);
^
../drivers/pnp/pnpbios/core.c:141:52: error: 'UMH_WAIT_EXEC' undeclared (first use in this function)
value = call_usermodehelper(argv [0], argv, envp, UMH_WAIT_EXEC);
^
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Linus Torvalds
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59ebc44e8d |
PNP material for v4.8-rc1
One simple change to make the PNP core use device_initcall() instead of module_init() to run pnpbios_thread_init() (Paul Gortmaker). -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAABCAAGBQJXl8CMAAoJEILEb/54YlRxlwwP/1XEZ07Fj0OMMP5IMZVYtJAf K35M/ERtP8vA8JJ2BSlzekzyccIhL2mmHMqtDGpaHTDYfvsxVAHbmrUOLFtT4gJ4 mS1eN6EsZh4ZYq7a3ewp/r2inoesIHL70UNskDB5FFZQlSucVsZJDXNIu1bYs5+P YdLeI2mCpfgheYMyCqmwcZ9fD6VWONeZG852aDIRCeisqsSnFEsFhdrqpJl8zE1L 5Nzmy11U9z2L0Jgv/VtDDqqAn3XfchL7wVxRhEDPJhi0QDTBdaink5GA0pPt33Ro ciLQFgmuduL0tfDLda6B99aoKk6jhPZlP1VmuHKntmcfKlYAmKR2TUPdFlNxvelk P6x/OpjaxzlQKn3ME7A5z/J6AFzT88AOA1zYNfuMWvLxfMPd3OYo/9Ju2NUxtlZN O6I7zBNKD2/FOndtRnc8jcB+nm4q98D0WyVUPOe4dPuXmH6BQikPs3A7JIH4gjWL TV41D61ivlPCnR4EIc646xueNH9hD+yWlisS+1AfiUSq4S1thciJd+nd/sWsLZvW LfY2EmKvFhKFOoYbfASNS8TkNKNl1ROH1DndO0bQsFxUX/mPPahfJ8Gscaf3Kq3I YrUr4ETmOQru6DIsE8bfm3X5xkF7sXOf//ccFkymmTPXzsGGkpscNMSkTG630URj bGTdD1g4YmqpZFZpVGu9 =GSWF -----END PGP SIGNATURE----- Merge tag 'pnp-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull PNP update from Rafael Wysocki: "One simple change to make the PNP core use device_initcall() instead of module_init() to run pnpbios_thread_init() (Paul Gortmaker)" * tag 'pnp-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PNP: make pnpbios core explicitly non-modular |
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Andy Lutomirski
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13d4ea097d |
x86/uaccess: Move thread_info::addr_limit to thread_struct
struct thread_info is a legacy mess. To prepare for its partial removal, move thread_info::addr_limit out. As an added benefit, this way is simpler. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> 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/15bee834d09402b47ac86f2feccdf6529f9bc5b0.1468527351.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Paul Gortmaker
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917c7fc264 |
PNP: make pnpbios core explicitly non-modular
The Kconfig currently controlling compilation of this code is:
config PNPBIOS
bool "Plug and Play BIOS support"
...meaning that it currently is not being built as a module by anyone.
Lets remove the couple traces of modularity, so that when reading the
driver there is no doubt it is builtin-only.
Since module_init translates to device_initcall in the non-modular
case, the init ordering remains unchanged with this commit.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Linus Torvalds
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3aa2fc1667 |
driver core update for 4.7-rc1
Here's the "big" driver core update for 4.7-rc1. Mostly just debugfs changes, the long-known and messy races with removing debugfs files should be fixed thanks to the great work of Nicolai Stange. We also have some isa updates in here (the x86 maintainers told me to take it through this tree), a new warning when we run out of dynamic char major numbers, and a few other assorted changes, details in the shortlog. All have been in linux-next for some time with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEABECAAYFAlc/0mwACgkQMUfUDdst+ynjXACgjNxR5nMUiM8ZuuD0i4Xj7VXd hnIAoM08+XDCv41noGdAcKv+2WZVZWMC =i+0H -----END PGP SIGNATURE----- Merge tag 'driver-core-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here's the "big" driver core update for 4.7-rc1. Mostly just debugfs changes, the long-known and messy races with removing debugfs files should be fixed thanks to the great work of Nicolai Stange. We also have some isa updates in here (the x86 maintainers told me to take it through this tree), a new warning when we run out of dynamic char major numbers, and a few other assorted changes, details in the shortlog. All have been in linux-next for some time with no reported issues" * tag 'driver-core-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (32 commits) Revert "base: dd: don't remove driver_data in -EPROBE_DEFER case" gpio: ws16c48: Utilize the ISA bus driver gpio: 104-idio-16: Utilize the ISA bus driver gpio: 104-idi-48: Utilize the ISA bus driver gpio: 104-dio-48e: Utilize the ISA bus driver watchdog: ebc-c384_wdt: Utilize the ISA bus driver iio: stx104: Utilize the module_isa_driver and max_num_isa_dev macros iio: stx104: Add X86 dependency to STX104 Kconfig option Documentation: Add ISA bus driver documentation isa: Implement the max_num_isa_dev macro isa: Implement the module_isa_driver macro pnp: pnpbios: Add explicit X86_32 dependency to PNPBIOS isa: Decouple X86_32 dependency from the ISA Kconfig option driver-core: use 'dev' argument in dev_dbg_ratelimited stub base: dd: don't remove driver_data in -EPROBE_DEFER case kernfs: Move faulting copy_user operations outside of the mutex devcoredump: add scatterlist support debugfs: unproxify files created through debugfs_create_u32_array() debugfs: unproxify files created through debugfs_create_blob() debugfs: unproxify files created through debugfs_create_bool() ... |
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William Breathitt Gray
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0619f39474 |
pnp: pnpbios: Add explicit X86_32 dependency to PNPBIOS
The PNPBIOS driver requires preprocessor defines (located in include/asm/segment.h) only declared if the architecture is set to X86_32. If the architecture is set to X86_64, the PNPBIOS driver will not build properly. The X86 dependecy for the PNPBIOS configuration option is changed to an explicit X86_32 dependency in order to prevent an attempt to build for an unsupported architecture. Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Luis R. Rodriguez
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80dfd83dfa |
x86, drivers/pnpbios: Replace paravirt_enabled() check with legacy device check
Since we are removing paravirt_enabled() replace it with a
logical equivalent. Even though PNPBIOS is x86 specific we
add an arch-specific type call, which can be implemented by
any architecture to show how other legacy attribute devices
can later be also checked for with other ACPI legacy attribute
flags.
This implicates the first ACPI 5.2.9.3 IA-PC Boot Architecture
ACPI_FADT_LEGACY_DEVICES flag device, and shows how to add more.
The reason pnpbios gets a defined structure and as such uses
a different approach than the RTC legacy quirk is that ACPI
has a respective RTC flag, while pnpbios does not. We fold
the pnpbios quirk under ACPI_FADT_LEGACY_DEVICES ACPI flag
use case, and use a struct of possible devices to enable
future extensions of this.
As per 0-day, this bumps the vmlinux size using i386-tinyconfig as
follows:
TOTAL TEXT init.text x86_early_init_platform_quirks()
+32 +28 +28 +28
That's 4 byte overhead total, the rest is cleared out on init
as its all __init text.
v2: split out subarch handlng on switch to make it easier
later to add other subarchs. The 'fall-through' switch
handling can be confusing and we'll remove it later
when we add handling for X86_SUBARCH_CE4100.
v3: document vmlinux size impact as per 0-day, and also
explain why pnpbios is treated differently than the
RTC legacy feature.
Signed-off-by: Luis R. Rodriguez <mcgrof@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: andrew.cooper3@citrix.com
Cc: andriy.shevchenko@linux.intel.com
Cc: bigeasy@linutronix.de
Cc: boris.ostrovsky@oracle.com
Cc: david.vrabel@citrix.com
Cc: ffainelli@freebox.fr
Cc: george.dunlap@citrix.com
Cc: glin@suse.com
Cc: jgross@suse.com
Cc: jlee@suse.com
Cc: josh@joshtriplett.org
Cc: julien.grall@linaro.org
Cc: konrad.wilk@oracle.com
Cc: kozerkov@parallels.com
Cc: lenb@kernel.org
Cc: lguest@lists.ozlabs.org
Cc: linux-acpi@vger.kernel.org
Cc: lv.zheng@intel.com
Cc: matt@codeblueprint.co.uk
Cc: mbizon@freebox.fr
Cc: rjw@rjwysocki.net
Cc: robert.moore@intel.com
Cc: rusty@rustcorp.com.au
Cc: tiwai@suse.de
Cc: toshi.kani@hp.com
Cc: xen-devel@lists.xensource.com
Link: http://lkml.kernel.org/r/1460592286-300-12-git-send-email-mcgrof@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Harb Abdulhamid
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86e75410f0 |
PNP / ACPI: add ACPI_RESOURCE_TYPE_SERIAL_BUS as a valid type
An error message is printed for resources of type 19, which is a valid supported resource type. The Firmware Test Suite tool (fwts) reports this as a test failure. This change fixes the false test failures for ASL that use type 19 (ACPI_RESOURCE_TYPE_SERIAL_BUS) resources. Signed-off-by: Harb Abdulhamid <harba@codeaurora.org> Signed-off-by: Timur Tabi <timur@codeaurora.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Josh Boyer
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ed1f0eeeba |
PNP: Add Haswell-ULT to Intel MCH size workaround
Add device ID 0x0a04 for Haswell-ULT to the list of devices with MCH problems. From a Lenovo ThinkPad T440S: [ 0.188604] pnp: PnP ACPI init [ 0.189044] system 00:00: [mem 0x00000000-0x0009ffff] could not be reserved [ 0.189048] system 00:00: [mem 0x000c0000-0x000c3fff] could not be reserved [ 0.189050] system 00:00: [mem 0x000c4000-0x000c7fff] could not be reserved [ 0.189052] system 00:00: [mem 0x000c8000-0x000cbfff] could not be reserved [ 0.189054] system 00:00: [mem 0x000cc000-0x000cffff] could not be reserved [ 0.189056] system 00:00: [mem 0x000d0000-0x000d3fff] has been reserved [ 0.189058] system 00:00: [mem 0x000d4000-0x000d7fff] has been reserved [ 0.189060] system 00:00: [mem 0x000d8000-0x000dbfff] has been reserved [ 0.189061] system 00:00: [mem 0x000dc000-0x000dffff] has been reserved [ 0.189063] system 00:00: [mem 0x000e0000-0x000e3fff] could not be reserved [ 0.189065] system 00:00: [mem 0x000e4000-0x000e7fff] could not be reserved [ 0.189067] system 00:00: [mem 0x000e8000-0x000ebfff] could not be reserved [ 0.189069] system 00:00: [mem 0x000ec000-0x000effff] could not be reserved [ 0.189071] system 00:00: [mem 0x000f0000-0x000fffff] could not be reserved [ 0.189073] system 00:00: [mem 0x00100000-0xdf9fffff] could not be reserved [ 0.189075] system 00:00: [mem 0xfec00000-0xfed3ffff] could not be reserved [ 0.189078] system 00:00: [mem 0xfed4c000-0xffffffff] could not be reserved [ 0.189082] system 00:00: Plug and Play ACPI device, IDs PNP0c01 (active) [ 0.189216] system 00:01: [io 0x1800-0x189f] could not be reserved [ 0.189220] system 00:01: [io 0x0800-0x087f] has been reserved [ 0.189222] system 00:01: [io 0x0880-0x08ff] has been reserved [ 0.189224] system 00:01: [io 0x0900-0x097f] has been reserved [ 0.189226] system 00:01: [io 0x0980-0x09ff] has been reserved [ 0.189229] system 00:01: [io 0x0a00-0x0a7f] has been reserved [ 0.189231] system 00:01: [io 0x0a80-0x0aff] has been reserved [ 0.189233] system 00:01: [io 0x0b00-0x0b7f] has been reserved [ 0.189235] system 00:01: [io 0x0b80-0x0bff] has been reserved [ 0.189238] system 00:01: [io 0x15e0-0x15ef] has been reserved [ 0.189240] system 00:01: [io 0x1600-0x167f] has been reserved [ 0.189242] system 00:01: [io 0x1640-0x165f] has been reserved [ 0.189246] system 00:01: [mem 0xf8000000-0xfbffffff] could not be reserved [ 0.189249] system 00:01: [mem 0x00000000-0x00000fff] could not be reserved [ 0.189251] system 00:01: [mem 0xfed1c000-0xfed1ffff] has been reserved [ 0.189254] system 00:01: [mem 0xfed10000-0xfed13fff] has been reserved [ 0.189256] system 00:01: [mem 0xfed18000-0xfed18fff] has been reserved [ 0.189258] system 00:01: [mem 0xfed19000-0xfed19fff] has been reserved [ 0.189261] system 00:01: [mem 0xfed45000-0xfed4bfff] has been reserved [ 0.189264] system 00:01: Plug and Play ACPI device, IDs PNP0c02 (active) [....] [ 0.583653] resource sanity check: requesting [mem 0xfed10000-0xfed15fff], which spans more than pnp 00:01 [mem 0xfed10000-0xfed13fff] [ 0.583654] ------------[ cut here ]------------ [ 0.583660] WARNING: CPU: 0 PID: 1 at arch/x86/mm/ioremap.c:198 __ioremap_caller+0x2c5/0x380() [ 0.583661] Info: mapping multiple BARs. Your kernel is fine. [ 0.583662] Modules linked in: [ 0.583666] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.3.3-303.fc23.x86_64 #1 [ 0.583668] Hardware name: LENOVO 20AR001GXS/20AR001GXS, BIOS GJET86WW (2.36 ) 12/04/2015 [ 0.583670] 0000000000000000 0000000014cf7e59 ffff880214a1baf8 ffffffff813a625f [ 0.583673] ffff880214a1bb40 ffff880214a1bb30 ffffffff810a07c2 00000000fed10000 [ 0.583675] ffffc90000cb8000 0000000000006000 0000000000000000 ffff8800d6381040 [ 0.583678] Call Trace: [ 0.583683] [<ffffffff813a625f>] dump_stack+0x44/0x55 [ 0.583686] [<ffffffff810a07c2>] warn_slowpath_common+0x82/0xc0 [ 0.583688] [<ffffffff810a085c>] warn_slowpath_fmt+0x5c/0x80 [ 0.583692] [<ffffffff810a6fba>] ? iomem_map_sanity_check+0xba/0xd0 [ 0.583695] [<ffffffff81065835>] __ioremap_caller+0x2c5/0x380 [ 0.583698] [<ffffffff81065907>] ioremap_nocache+0x17/0x20 [ 0.583701] [<ffffffff8103a119>] snb_uncore_imc_init_box+0x79/0xb0 [ 0.583705] [<ffffffff81038900>] uncore_pci_probe+0xd0/0x1b0 [ 0.583707] [<ffffffff813efda5>] local_pci_probe+0x45/0xa0 [ 0.583710] [<ffffffff813f118d>] pci_device_probe+0xfd/0x140 [ 0.583713] [<ffffffff814d9b52>] driver_probe_device+0x222/0x480 [ 0.583715] [<ffffffff814d9e34>] __driver_attach+0x84/0x90 [ 0.583717] [<ffffffff814d9db0>] ? driver_probe_device+0x480/0x480 [ 0.583720] [<ffffffff814d762c>] bus_for_each_dev+0x6c/0xc0 [ 0.583722] [<ffffffff814d930e>] driver_attach+0x1e/0x20 [ 0.583724] [<ffffffff814d8e4b>] bus_add_driver+0x1eb/0x280 [ 0.583727] [<ffffffff81d6af1a>] ? uncore_cpu_setup+0x12/0x12 [ 0.583729] [<ffffffff814da680>] driver_register+0x60/0xe0 [ 0.583733] [<ffffffff813ef78c>] __pci_register_driver+0x4c/0x50 [ 0.583736] [<ffffffff81d6affc>] intel_uncore_init+0xe2/0x2e6 [ 0.583738] [<ffffffff81d6af1a>] ? uncore_cpu_setup+0x12/0x12 [ 0.583741] [<ffffffff81002123>] do_one_initcall+0xb3/0x200 [ 0.583745] [<ffffffff810be500>] ? parse_args+0x1a0/0x4a0 [ 0.583749] [<ffffffff81d5c1c8>] kernel_init_freeable+0x189/0x223 [ 0.583752] [<ffffffff81775c40>] ? rest_init+0x80/0x80 [ 0.583754] [<ffffffff81775c4e>] kernel_init+0xe/0xe0 [ 0.583758] [<ffffffff81781adf>] ret_from_fork+0x3f/0x70 [ 0.583760] [<ffffffff81775c40>] ? rest_init+0x80/0x80 [ 0.583765] ---[ end trace 077c426a39e018aa ]--- 00:00.0 Host bridge [0600]: Intel Corporation Haswell-ULT DRAM Controller [8086:0a04] (rev 0b) Subsystem: Lenovo Device [17aa:220c] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx- Latency: 0 Capabilities: <access denied> Kernel driver in use: hsw_uncore Link: https://bugzilla.redhat.com/show_bug.cgi?id=1300955 Tested-by: <robo@tcp.sk> Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
|
|
Heiner Kallweit
|
e0f03e87fc |
PNP: respect PNP_DRIVER_RES_DO_NOT_CHANGE when detaching
I have a device (Nuvoton 6779D Super-IO IR RC with nuvoton-cir driver) which works after initial boot but not any longer if I unload and re-load the driver module. Digging into the issue I found that unloading the driver calls pnp_disable_dev although the driver has flag PNP_DRIVER_RES_DO_NOT_CHANGE set. IMHO this is not right. Let's have a look at the call chain when probing a device: pnp_device_probe 1. attaches the device 2. if it's not active and PNP_DRIVER_RES_DO_NOT_CHANGE is not set it gets activated 3. probes driver I think pnp_device_remove should do it in reverse order and also respect PNP_DRIVER_RES_DO_NOT_CHANGE. Therefore: 1. call drivers remove callback 2. if device is active and PNP_DRIVER_RES_DO_NOT_CHANGE is not set disable it 3. detach device The change works for me and sounds logical to me. However I don't know the pnp driver in detail so I might be wrong. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
|
|
Christophe Le Roy
|
a77060f07f |
PNP: Add Broadwell to Intel MCH size workaround
Add device ID 0x1604 for Broadwell to commit
|
|
|
Rasmus Villemoes
|
844142c3f8 |
ACPI / scan: constify struct acpi_hardware_id::id
This is preparation for using kstrdup_const to initialize that member. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
|
|
Dan Williams
|
92b19ff50e |
cleanup IORESOURCE_CACHEABLE vs ioremap()
Quoting Arnd:
I was thinking the opposite approach and basically removing all uses
of IORESOURCE_CACHEABLE from the kernel. There are only a handful of
them.and we can probably replace them all with hardcoded
ioremap_cached() calls in the cases they are actually useful.
All existing usages of IORESOURCE_CACHEABLE call ioremap() instead of
ioremap_nocache() if the resource is cacheable, however ioremap() is
uncached by default. Clearly none of the existing usages care about the
cacheability. Particularly devm_ioremap_resource() never worked as
advertised since it always fell back to plain ioremap().
Clean this up as the new direction we want is to convert
ioremap_<type>() usages to memremap(..., flags).
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
|
|
|
Rafael J. Wysocki
|
0294112ee3 |
ACPI / PNP: Reserve ACPI resources at the fs_initcall_sync stage
This effectively reverts the following three commits: |
|
|
Rafael J. Wysocki
|
a8269d36a8 |
Merge branches 'pnp' and 'pm-tools'
* pnp: PNP / ACPI: use unsigned int in pnpacpi_encode_resources() PNP / ACPI: use u8 instead of int in acpi_resource_extended_irq context * pm-tools: cpupower: mperf monitor: fix output in MAX_FREQ_SYSFS mode |
|
|
Rafael J. Wysocki
|
0f1b414d19 |
ACPI / PNP: Avoid conflicting resource reservations
Commit |
|
|
Fabian Frederick
|
fac69a2bc8 |
PNP / ACPI: use unsigned int in pnpacpi_encode_resources()
use unsigned int for port, irq, dma and mem used for pnp_get_resource() This fixes gcc warnings of type "conversion to unsigned int from int may change the sign of the result" Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
|
|
Fabian Frederick
|
bbee06d067 |
PNP / ACPI: use u8 instead of int in acpi_resource_extended_irq context
acpi_resource_extented_irq variables are all u8. Use that type for triggering, polarity and shareable. This fixes gcc warnings of type "conversion to u8 from int may alter its value" Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
|
|
Linus Torvalds
|
2481bc7528 |
Power management and ACPI updates for v4.1-rc1
- Generic PM domains support update including new PM domain
callbacks to handle device initialization better (Russell King,
Rafael J Wysocki, Kevin Hilman).
- Unified device properties API update including a new mechanism
for accessing data provided by platform initialization code
(Rafael J Wysocki, Adrian Hunter).
- ARM cpuidle update including ARM32/ARM64 handling consolidation
(Daniel Lezcano).
- intel_idle update including support for the Silvermont Core in
the Baytrail SOC and for the Airmont Core in the Cherrytrail and
Braswell SOCs (Len Brown, Mathias Krause).
- New cpufreq driver for Hisilicon ACPU (Leo Yan).
- intel_pstate update including support for the Knights Landing
chip (Dasaratharaman Chandramouli, Kristen Carlson Accardi).
- QorIQ cpufreq driver update (Tang Yuantian, Arnd Bergmann).
- powernv cpufreq driver update (Shilpasri G Bhat).
- devfreq update including Tegra support changes (Tomeu Vizoso,
MyungJoo Ham, Chanwoo Choi).
- powercap RAPL (Running-Average Power Limit) driver update
including support for Intel Broadwell server chips (Jacob Pan,
Mathias Krause).
- ACPI device enumeration update related to the handling of the
special PRP0001 device ID allowing DT-style 'compatible' property
to be used for ACPI device identification (Rafael J Wysocki).
- ACPI EC driver update including limited _DEP support (Lan Tianyu,
Lv Zheng).
- ACPI backlight driver update including a new mechanism to allow
native backlight handling to be forced on non-Windows 8 systems
and a new quirk for Lenovo Ideapad Z570 (Aaron Lu, Hans de Goede).
- New Windows Vista compatibility quirk for Sony VGN-SR19XN (Chen Yu).
- Assorted ACPI fixes and cleanups (Aaron Lu, Martin Kepplinger,
Masanari Iida, Mika Westerberg, Nan Li, Rafael J Wysocki).
- Fixes related to suspend-to-idle for the iTCO watchdog driver and
the ACPI core system suspend/resume code (Rafael J Wysocki, Chen Yu).
- PM tracing support for the suspend phase of system suspend/resume
transitions (Zhonghui Fu).
- Configurable delay for the system suspend/resume testing facility
(Brian Norris).
- PNP subsystem cleanups (Peter Huewe, Rafael J Wysocki).
/
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Merge tag 'pm+acpi-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI updates from Rafael Wysocki:
"These are mostly fixes and cleanups all over, although there are a few
items that sort of fall into the new feature category.
First off, we have new callbacks for PM domains that should help us to
handle some issues related to device initialization in a better way.
There also is some consolidation in the unified device properties API
area allowing us to use that inferface for accessing data coming from
platform initialization code in addition to firmware-provided data.
We have some new device/CPU IDs in a few drivers, support for new
chips and a new cpufreq driver too.
Specifics:
- Generic PM domains support update including new PM domain callbacks
to handle device initialization better (Russell King, Rafael J
Wysocki, Kevin Hilman)
- Unified device properties API update including a new mechanism for
accessing data provided by platform initialization code (Rafael J
Wysocki, Adrian Hunter)
- ARM cpuidle update including ARM32/ARM64 handling consolidation
(Daniel Lezcano)
- intel_idle update including support for the Silvermont Core in the
Baytrail SOC and for the Airmont Core in the Cherrytrail and
Braswell SOCs (Len Brown, Mathias Krause)
- New cpufreq driver for Hisilicon ACPU (Leo Yan)
- intel_pstate update including support for the Knights Landing chip
(Dasaratharaman Chandramouli, Kristen Carlson Accardi)
- QorIQ cpufreq driver update (Tang Yuantian, Arnd Bergmann)
- powernv cpufreq driver update (Shilpasri G Bhat)
- devfreq update including Tegra support changes (Tomeu Vizoso,
MyungJoo Ham, Chanwoo Choi)
- powercap RAPL (Running-Average Power Limit) driver update including
support for Intel Broadwell server chips (Jacob Pan, Mathias Krause)
- ACPI device enumeration update related to the handling of the
special PRP0001 device ID allowing DT-style 'compatible' property
to be used for ACPI device identification (Rafael J Wysocki)
- ACPI EC driver update including limited _DEP support (Lan Tianyu,
Lv Zheng)
- ACPI backlight driver update including a new mechanism to allow
native backlight handling to be forced on non-Windows 8 systems and
a new quirk for Lenovo Ideapad Z570 (Aaron Lu, Hans de Goede)
- New Windows Vista compatibility quirk for Sony VGN-SR19XN (Chen Yu)
- Assorted ACPI fixes and cleanups (Aaron Lu, Martin Kepplinger,
Masanari Iida, Mika Westerberg, Nan Li, Rafael J Wysocki)
- Fixes related to suspend-to-idle for the iTCO watchdog driver and
the ACPI core system suspend/resume code (Rafael J Wysocki, Chen Yu)
- PM tracing support for the suspend phase of system suspend/resume
transitions (Zhonghui Fu)
- Configurable delay for the system suspend/resume testing facility
(Brian Norris)
- PNP subsystem cleanups (Peter Huewe, Rafael J Wysocki)"
* tag 'pm+acpi-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (74 commits)
ACPI / scan: Fix NULL pointer dereference in acpi_companion_match()
ACPI / scan: Rework modalias creation when "compatible" is present
intel_idle: mark cpu id array as __initconst
powercap / RAPL: mark rapl_ids array as __initconst
powercap / RAPL: add ID for Broadwell server
intel_pstate: Knights Landing support
intel_pstate: remove MSR test
cpufreq: fix qoriq uniprocessor build
ACPI / scan: Take the PRP0001 position in the list of IDs into account
ACPI / scan: Simplify acpi_match_device()
ACPI / scan: Generalize of_compatible matching
device property: Introduce firmware node type for platform data
device property: Make it possible to use secondary firmware nodes
PM / watchdog: iTCO: stop watchdog during system suspend
cpufreq: hisilicon: add acpu driver
ACPI / EC: Call acpi_walk_dep_device_list() after installing EC opregion handler
cpufreq: powernv: Report cpu frequency throttling
intel_idle: Add support for the Airmont Core in the Cherrytrail and Braswell SOCs
intel_idle: Update support for Silvermont Core in Baytrail SOC
PM / devfreq: tegra: Register governor on module init
...
|
|
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Rafael J. Wysocki
|
71150d2265 |
PNP: Avoid leaving unregistered device objects in lists
pnp_register_protocol() and __pnp_add_device() both have a problem that if device_register() fails, the objects they create will be left in the lists they have been put one beforehand. Unfortunately, that is not handled by the callers of those routines either, so in case of a device registration errors the PNP bus type's data structures will end up in an inconsistent state. Make pnp_register_protocol() and __pnp_add_device() remove the objects from the lists if device registration fails. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
|
|
Rafael J. Wysocki
|
38f6b38dbb |
PNP: Convert pnp_lock into a mutex
pnp_lock is a spinlock, but it is only acquired from process context, so it may be a mutex just fine. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
|
|
Rafael J. Wysocki
|
2eb1eb02dd |
PNP / ACPI: Use ACPI_COMPANION_SET() during initialization
pnpacpi_add_device() calls acpi_bind_one() on an already registered device, which is a mistake, but it can initialize the ACPI companion field of the struct device to be registered using ACPI_COMPANION_SET() instead, so make it do that. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> |
|
|
Bjorn Helgaas
|
f7834c092c |
PNP: Don't check for overlaps with unassigned PCI BARs
After
|
|
|
Rafael J. Wysocki
|
3466b547e3 |
Merge branches 'pnp', 'pm-cpuidle' and 'pm-cpufreq'
* pnp: PNP: Switch from __check_region() to __request_region() * pm-cpuidle: cpuidle: powernv: Avoid endianness conversions while parsing DT cpuidle: powernv: Read target_residency value of idle states from DT if available * pm-cpufreq: cpufreq: s3c: remove last use of resume_clocks callback cpufreq: s3c: remove incorrect __init annotations |
|
|
Linus Torvalds
|
a9724125ad |
TTY/Serial driver patches for 3.20-rc1
Here's the big tty/serial driver update for 3.20-rc1. Nothing huge here, just lots of driver updates and some core tty layer fixes as well. All have been in linux-next with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEABECAAYFAlTgtgkACgkQMUfUDdst+ykXbACg14oFAmeYjO9RsdIHPXBvKseO 47QAn0foy91bpNQ5UFOxWS5L6Fzj2ZND =syx2 -----END PGP SIGNATURE----- Merge tag 'tty-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver patches from Greg KH: "Here's the big tty/serial driver update for 3.20-rc1. Nothing huge here, just lots of driver updates and some core tty layer fixes as well. All have been in linux-next with no reported issues" * tag 'tty-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (119 commits) serial: 8250: Fix UART_BUG_TXEN workaround serial: driver for ETRAX FS UART tty: remove unused variable sprop serial: of-serial: fetch line number from DT serial: samsung: earlycon support depends on CONFIG_SERIAL_SAMSUNG_CONSOLE tty/serial: serial8250_set_divisor() can be static tty/serial: Add Spreadtrum sc9836-uart driver support Documentation: DT: Add bindings for Spreadtrum SoC Platform serial: samsung: remove redundant interrupt enabling tty: Remove external interface for tty_set_termios() serial: omap: Fix RTS handling serial: 8250_omap: Use UPSTAT_AUTORTS for RTS handling serial: core: Rework hw-assisted flow control support tty/serial: 8250_early: Add support for PXA UARTs tty/serial: of_serial: add support for PXA/MMP uarts tty/serial: of_serial: add DT alias ID handling serial: 8250: Prevent concurrent updates to shadow registers serial: 8250: Use canary to restart console after suspend serial: 8250: Refactor XR17V35X divisor calculation serial: 8250: Refactor divisor programming ... |
|
|
Linus Torvalds
|
4ba63072b9 |
Char / Misc patches for 3.20-rc1
Here's the big char/misc driver update for 3.20-rc1. Lots of little things in here, all described in the changelog. Nothing major or unusual, except maybe the binder selinux stuff, which was all acked by the proper selinux people and they thought it best to come through this tree. All of this has been in linux-next with no reported issues for a while. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEABECAAYFAlTgs80ACgkQMUfUDdst+yn86gCeMLbxANGExVLd+PR46GNsAUQb SJ4AmgIqrkIz+5LCwZWM02ldbYhPeBVf =lfmM -----END PGP SIGNATURE----- Merge tag 'char-misc-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char / misc patches from Greg KH: "Here's the big char/misc driver update for 3.20-rc1. Lots of little things in here, all described in the changelog. Nothing major or unusual, except maybe the binder selinux stuff, which was all acked by the proper selinux people and they thought it best to come through this tree. All of this has been in linux-next with no reported issues for a while" * tag 'char-misc-3.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (90 commits) coresight: fix function etm_writel_cp14() parameter order coresight-etm: remove check for unknown Kconfig macro coresight: fixing CPU hwid lookup in device tree coresight: remove the unnecessary function coresight_is_bit_set() coresight: fix the debug AMBA bus name coresight: remove the extra spaces coresight: fix the link between orphan connection and newly added device coresight: remove the unnecessary replicator property coresight: fix the replicator subtype value pdfdocs: Fix 'make pdfdocs' failure for 'uio-howto.tmpl' mcb: Fix error path of mcb_pci_probe virtio/console: verify device has config space ti-st: clean up data types (fix harmless memory corruption) mei: me: release hw from reset only during the reset flow mei: mask interrupt set bit on clean reset bit extcon: max77693: Constify struct regmap_config extcon: adc-jack: Release IIO channel on driver remove extcon: Remove duplicated include from extcon-class.c Drivers: hv: vmbus: hv_process_timer_expiration() can be static Drivers: hv: vmbus: serialize Offer and Rescind offer ... |