17 Jan, 2019
1 commit
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commit e4f358916d528d479c3c12bd2fd03f2d5a576380 upstream.
Commit
4cd24de3a098 ("x86/retpoline: Make CONFIG_RETPOLINE depend on compiler support")
replaced the RETPOLINE define with CONFIG_RETPOLINE checks. Remove the
remaining pieces.[ bp: Massage commit message. ]
Fixes: 4cd24de3a098 ("x86/retpoline: Make CONFIG_RETPOLINE depend on compiler support")
Signed-off-by: WANG Chao
Signed-off-by: Borislav Petkov
Reviewed-by: Zhenzhong Duan
Reviewed-by: Masahiro Yamada
Cc: "H. Peter Anvin"
Cc: Andi Kleen
Cc: Andrew Morton
Cc: Andy Lutomirski
Cc: Arnd Bergmann
Cc: Daniel Borkmann
Cc: David Woodhouse
Cc: Geert Uytterhoeven
Cc: Jessica Yu
Cc: Jiri Kosina
Cc: Kees Cook
Cc: Konrad Rzeszutek Wilk
Cc: Luc Van Oostenryck
Cc: Michal Marek
Cc: Miguel Ojeda
Cc: Peter Zijlstra
Cc: Tim Chen
Cc: Vasily Gorbik
Cc: linux-kbuild@vger.kernel.org
Cc: srinivas.eeda@oracle.com
Cc: stable
Cc: x86-ml
Link: https://lkml.kernel.org/r/20181210163725.95977-1-chao.wang@ucloud.cn
Signed-off-by: Greg Kroah-Hartman
15 Sep, 2018
1 commit
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[ Upstream commit 1f3aa9002dc6a0d59a4b599b4fc8f01cf43ef014 ]
Fix missing error check for memory allocation functions in
scripts/mod/modpost.c.Fixes kernel bugzilla #200319:
https://bugzilla.kernel.org/show_bug.cgi?id=200319Signed-off-by: Randy Dunlap
Cc: Yuexing Wang
Signed-off-by: Masahiro Yamada
Signed-off-by: Sasha Levin
Signed-off-by: Greg Kroah-Hartman
08 Feb, 2018
1 commit
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commit caf7501a1b4ec964190f31f9c3f163de252273b8
There's a risk that a kernel which has full retpoline mitigations becomes
vulnerable when a module gets loaded that hasn't been compiled with the
right compiler or the right option.To enable detection of that mismatch at module load time, add a module info
string "retpoline" at build time when the module was compiled with
retpoline support. This only covers compiled C source, but assembler source
or prebuilt object files are not checked.If a retpoline enabled kernel detects a non retpoline protected module at
load time, print a warning and report it in the sysfs vulnerability file.[ tglx: Massaged changelog ]
Signed-off-by: Andi Kleen
Signed-off-by: Thomas Gleixner
Cc: David Woodhouse
Cc: gregkh@linuxfoundation.org
Cc: torvalds@linux-foundation.org
Cc: jeyu@kernel.org
Cc: arjan@linux.intel.com
Link: https://lkml.kernel.org/r/20180125235028.31211-1-andi@firstfloor.org
Signed-off-by: Greg Kroah-Hartman
02 Nov, 2017
1 commit
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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
Reviewed-by: Philippe Ombredanne
Reviewed-by: Thomas Gleixner
Signed-off-by: Greg Kroah-Hartman
23 Oct, 2017
2 commits
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Pull input fix from Dmitry Torokhov:
"A fix for a broken commit in the previous pull breaking automatic
module loading of input handlers, such ad evdev"* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: do not use property bits when generating module alias -
The commit 8724ecb07229 ("Input: allow matching device IDs on property
bits") started using property bits when generating module aliases for input
handlers, but did not adjust the generation of MODALIAS attribute on input
device uevents, breaking automatic module loading. Given that no handler
currently uses property bits in their module tables, let's revert this part
of the commit for now.Reported-by: Damien Wyart
Tested-by: Damien Wyart
Fixes: 8724ecb07229 ("Input: allow matching device IDs on property bits")
Signed-off-by: Dmitry Torokhov
22 Oct, 2017
1 commit
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Pull input fixes from Dmitry Torokhov:
- joydev now implements a blacklist to avoid creating joystick nodes
for accelerometers found in composite devices such as PlaStation
controllers- assorted driver fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: ims-psu - check if CDC union descriptor is sane
Input: joydev - blacklist ds3/ds4/udraw motion sensors
Input: allow matching device IDs on property bits
Input: factor out and export input_device_id matching code
Input: goodix - poll the 'buffer status' bit before reading data
Input: axp20x-pek - fix module not auto-loading for axp221 pek
Input: tca8418 - enable interrupt after it has been requested
Input: stmfts - fix setting ABS_MT_POSITION_* maximum size
Input: ti_am335x_tsc - fix incorrect step config for 5 wire touchscreen
Input: synaptics - disable kernel tracking on SMBus devices
20 Oct, 2017
1 commit
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Let's allow matching input devices on their property bits, both in-kernel
and when generating module aliases.Tested-by: Roderick Colenbrander
Signed-off-by: Dmitry Torokhov
14 Sep, 2017
1 commit
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Pull modules updates from Jessica Yu:
"Summary of modules changes for the 4.14 merge window:- minor code cleanups and fixes
- modpost: avoid building modules that have names that exceed the
size of the name field in struct module"* tag 'modules-for-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
module: Remove const attribute from alias for MODULE_DEVICE_TABLE
module: fix ddebug_remove_module()
modpost: abort if module name is too long
07 Sep, 2017
1 commit
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There is code duplication between sec_name() and sech_name(). Simplify
sec_name() by re-using sech_name(). Also, move them up to remove the
forward declaration of sec_name().Link: http://lkml.kernel.org/r/1502248721-22009-1-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada
Reviewed-by: Kees Cook
Cc: Nicholas Piggin
Cc: Jessica Yu
Cc: Chris Metcalf
Cc: Heinrich Schuchardt
Cc: Ingo Molnar
Cc: Ard Biesheuvel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
25 Jul, 2017
1 commit
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Module name has a limited length, but currently the build system
allows the build finishing even if the module name is too long.CC /root/kprobe_example/abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz.mod.o
/root/kprobe_example/abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz.mod.c:9:2:
warning: initializer-string for array of chars is too long [enabled by default]
.name = KBUILD_MODNAME,
^but it's merely a warning.
This patch adds the check of the module name length in modpost and stops
the build properly.Signed-off-by: Wanlong Gao
Signed-off-by: Jessica Yu
24 May, 2017
1 commit
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Accessing the mod structure (e.g. for mod->name) prior to having completed
check_modstruct_version() can result in writing garbage to the error logs
if the layout of the mod structure loaded from disk doesn't match the
running kernel's mod structure layout. This kind of mismatch will become
much more likely if a kernel is built with different randomization seed
for the struct layout randomization plugin.Instead, add and use a new modinfo string for logging the module name.
Signed-off-by: Kees Cook
Signed-off-by: Jessica Yu
13 Apr, 2017
1 commit
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Largely redundant code is used in different places to generate C headers
from offset information extracted from assembly language output.
Consolidate the code in Makefile.lib and use this instead.Signed-off-by: Matthias Kaehlcke
Signed-off-by: Masahiro Yamada
02 Mar, 2017
1 commit
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The '__unreachable' and '__func_stack_frame_non_standard' sections are
only used at compile time. They're discarded for vmlinux but they
should also be discarded for modules.Since this is a recurring pattern, prefix the section names with
".discard.". It's a nice convention and vmlinux.lds.h already discards
such sections.Also remove the 'a' (allocatable) flag from the __unreachable section
since it doesn't make sense for a discarded section.Suggested-by: Linus Torvalds
Signed-off-by: Josh Poimboeuf
Cc: Jessica Yu
Cc: Peter Zijlstra
Cc: Thomas Gleixner
Fixes: d1091c7fa3d5 ("objtool: Improve detection of BUG() and other dead ends")
Link: http://lkml.kernel.org/r/20170301180444.lhd53c5tibc4ns77@treble
Signed-off-by: Ingo Molnar
04 Feb, 2017
1 commit
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This add the kbuild infrastructure that will allow architectures to emit
vmlinux symbol CRCs as 32-bit offsets to another location in the kernel
where the actual value is stored. This works around problems with CRCs
being mistaken for relocatable symbols on kernels that self relocate at
runtime (i.e., powerpc with CONFIG_RELOCATABLE=y)For the kbuild side of things, this comes down to the following:
- introducing a Kconfig symbol MODULE_REL_CRCS
- adding a -R switch to genksyms to instruct it to emit the CRC symbols
as references into the .rodata section- making modpost distinguish such references from absolute CRC symbols
by the section index (SHN_ABS)- making kallsyms disregard non-absolute symbols with a __crc_ prefix
Signed-off-by: Ard Biesheuvel
Signed-off-by: Linus Torvalds
18 Dec, 2016
1 commit
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Pull kbuild updates from Michal Marek:
- prototypes for x86 asm-exported symbols (Adam Borowski) and a warning
about missing CRCs (Nick Piggin)- asm-exports fix for LTO (Nicolas Pitre)
- thin archives improvements (Nick Piggin)
- linker script fix for CONFIG_LD_DEAD_CODE_DATA_ELIMINATION (Nick
Piggin)- genksyms support for __builtin_va_list keyword
- misc minor fixes
* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
x86/kbuild: enable modversions for symbols exported from asm
kbuild: fix scripts/adjust_autoksyms.sh* for the no modules case
scripts/kallsyms: remove last remnants of --page-offset option
make use of make variable CURDIR instead of calling pwd
kbuild: cmd_export_list: tighten the sed script
kbuild: minor improvement for thin archives build
kbuild: modpost warn if export version crc is missing
kbuild: keep data tables through dead code elimination
kbuild: improve linker compatibility with lib-ksyms.o build
genksyms: Regenerate parser
kbuild/genksyms: handle va_list type
kbuild: thin archives for multi-y targets
kbuild: kallsyms allow 3-pass generation if symbols size has changed
29 Nov, 2016
1 commit
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This catches the failing ceph CRC on with:
LD vmlinux.o
MODPOST vmlinux.o
WARNING: EXPORT symbol "ceph_monc_do_statfs" [vmlinux] version
generation failed, symbol will not be versioned.When the modules referring to exported symbols are built, there is an
existing warning for missing CRC, but it's not always the case such
any such module will be built, and in any case it is useful to get a
warning at the source.This gets a little verbose with CONFIG_DEBUG_SECTION_MISMATCH,
producing a warning with each object linked, but I didn't think
that warranted extra complexity to avoid.Signed-off-by: Nicholas Piggin
Signed-off-by: Michal Marek
27 Nov, 2016
1 commit
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valgrind complains that memory is not freed after allocation
with realloc() called from main() and write_dump().So let us free the allocated memory properly.
Signed-off-by: Heinrich Schuchardt
Signed-off-by: Rusty Russell
Link: http://lkml.kernel.org/r/1470166981-6461-1-git-send-email-xypron.glpk@gmx.de
Signed-off-by: Jessica Yu
08 Oct, 2016
1 commit
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When doing an nmi backtrace of many cores, most of which are idle, the
output is a little overwhelming and very uninformative. Suppress
messages for cpus that are idling when they are interrupted and just
emit one line, "NMI backtrace for N skipped: idling at pc 0xNNN".We do this by grouping all the cpuidle code together into a new
.cpuidle.text section, and then checking the address of the interrupted
PC to see if it lies within that section.This commit suitably tags x86 and tile idle routines, and only adds in
the minimal framework for other architectures.Link: http://lkml.kernel.org/r/1472487169-14923-5-git-send-email-cmetcalf@mellanox.com
Signed-off-by: Chris Metcalf
Acked-by: Peter Zijlstra (Intel)
Tested-by: Peter Zijlstra (Intel)
Tested-by: Daniel Thompson [arm]
Tested-by: Petr Mladek
Cc: Aaron Tomlin
Cc: Peter Zijlstra (Intel)
Cc: "Rafael J. Wysocki"
Cc: Russell King
Cc: Thomas Gleixner
Cc: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
27 Jun, 2016
1 commit
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Move the definition of fsl_mc_device_id to its proper location in
mod_devicetable.h, and add fsl-mc bus support to devicetable-offsets.c
and file2alias.c to enable device table matching. With this patch udev
based module loading of fsl-mc drivers is supported.Signed-off-by: Stuart Yoder
Signed-off-by: Greg Kroah-Hartman
08 Jun, 2016
1 commit
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Because of an improper dereference, a stray 'C' character was output to
the modalias when no 'compatible' was specified. This is the case for
some old PowerMac drivers which only set the 'name' property. Fix it to
let them match again.Reported-by: Mathieu Malaterre
Signed-off-by: Wolfram Sang
Tested-by: Mathieu Malaterre
Cc: Philipp Zabel
Cc: Andreas Schwab
Fixes: 6543becf26fff6 ("mod/file2alias: make modalias generation safe for cross compiling")
Cc: stable@vger.kernel.org # v3.9+
Signed-off-by: Michael Ellerman
06 May, 2016
1 commit
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Since the wildcard at the end of OF module aliases is gone, autoloading
of modules that don't match a device's last (most generic) compatible
value fails.For example the CODA960 VPU on i.MX6Q has the SoC specific compatible
"fsl,imx6q-vpu" and the generic compatible "cnm,coda960". Since the
driver currently only works with knowledge about the SoC specific
integration, it doesn't list "cnm,cod960" in the module device table.This results in the device compatible
"of:NvpuTCfsl,imx6q-vpuCcnm,coda960" not matching the module alias
"of:N*T*Cfsl,imx6q-vpu" anymore, whereas before commit 2f632369ab79
("modpost: don't add a trailing wildcard for OF module aliases") it
matched the module alias "of:N*T*Cfsl,imx6q-vpu*".This patch adds two module aliases for each compatible, one without the
wildcard and one with "C*" appended.$ modinfo coda | grep imx6q
alias: of:N*T*Cfsl,imx6q-vpuC*
alias: of:N*T*Cfsl,imx6q-vpuFixes: 2f632369ab79 ("modpost: don't add a trailing wildcard for OF module aliases")
Link: http://lkml.kernel.org/r/1462203339-15340-1-git-send-email-p.zabel@pengutronix.de
Signed-off-by: Philipp Zabel
Cc: Javier Martinez Canillas
Cc: Brian Norris
Cc: Sjoerd Simons
Cc: Rusty Russell
Cc: Greg Kroah-Hartman
Cc: [4.5+]
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
29 Feb, 2016
1 commit
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Code which runs outside the kernel's normal mode of operation often does
unusual things which can cause a static analysis tool like objtool to
emit false positive warnings:- boot image
- vdso image
- relocation
- realmode
- efi
- head
- purgatory
- modpostSet OBJECT_FILES_NON_STANDARD for their related files and directories,
which will tell objtool to skip checking them. It's ok to skip them
because they don't affect runtime stack traces.Also skip the following code which does the right thing with respect to
frame pointers, but is too "special" to be validated by a tool:- entry
- mcountAlso skip the test_nx module because it modifies its exception handling
table at runtime, which objtool can't understand. Fortunately it's
just a test module so it doesn't matter much.Currently objtool is the only user of OBJECT_FILES_NON_STANDARD, but it
might eventually be useful for other tools.Signed-off-by: Josh Poimboeuf
Cc: Andrew Morton
Cc: Andy Lutomirski
Cc: Arnaldo Carvalho de Melo
Cc: Bernd Petrovitsch
Cc: Borislav Petkov
Cc: Chris J Arges
Cc: Jiri Slaby
Cc: Linus Torvalds
Cc: Michal Marek
Cc: Namhyung Kim
Cc: Pedro Alves
Cc: Peter Zijlstra
Cc: Thomas Gleixner
Cc: live-patching@vger.kernel.org
Link: http://lkml.kernel.org/r/366c080e3844e8a5b6a0327dc7e8c2b90ca3baeb.1456719558.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar
21 Jan, 2016
1 commit
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PowerPC64 uses the symbol .TOC. much as other targets use
_GLOBAL_OFFSET_TABLE_. It identifies the value of the GOT pointer (or in
powerpc parlance, the TOC pointer). Global offset tables are generally
local to an executable or shared library, or in the kernel, module. Thus
it does not make sense for a module to resolve a relocation against
.TOC. to the kernel's .TOC. value. A module has its own .TOC., and
indeed the powerpc64 module relocation processing ignores the kernel
value of .TOC. and instead calculates a module-local value.This patch removes code involved in exporting the kernel .TOC., tweaks
modpost to ignore an undefined .TOC., and the module loader to twiddle
the section symbol so that .TOC. isn't seen as undefined.Note that if the kernel was compiled with -msingle-pic-base then ELFv2
would not have function global entry code setting up r2. In that case
the module call stubs would need to be modified to set up r2 using the
kernel .TOC. value, requiring some of this code to be reinstated.mpe: Furthermore a change in binutils master (not yet released) causes
the current way we handle the TOC to no longer work when building with
MODVERSIONS=y and RELOCATABLE=n. The symptom is that modules can not be
loaded due to there being no version found for TOC.Cc: stable@vger.kernel.org # 3.16+
Signed-off-by: Alan Modra
Signed-off-by: Michael Ellerman
15 Jan, 2016
1 commit
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Commit ac551828993e ("modpost: i2c aliases need no trailing wildcard")
removed the wildcard at the end of the I2C module aliases because I2C
devices have no IDs so the aliases are just arbitrary device names.This is also true for OF modaliases since a compatible string is used to
define a specific IP hardware block. So the modalias should match a
specific compatible string and not attempt to match a compatible string
whose name matches the beginning of another one.For example, the following driver module:
$ modinfo cros_ec_keyb | grep alias
alias: platform:cros-ec-keyb
alias: of:N*T*Cgoogle,cros-ec-keyb*will be tried to be loaded for an alias of:N*T*Cgoogle,cros-ec-keyb-v2
but there could be a different driver that supports the device for that
compatible string so it's better to remove the trailing wildcard for OF.Also, remove the word "always" from the add_wildcard() function comment
since that was carried from the time where a wildcard was always added
at the end of the module alias for all the devices.Signed-off-by: Javier Martinez Canillas
Suggested-by: Brian Norris
Reviewed-by: Sjoerd Simons
Cc: Rusty Russell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
15 Dec, 2015
1 commit
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Consistently use uuid_le type in the Hyper-V driver code.
Signed-off-by: K. Y. Srinivasan
Signed-off-by: Greg Kroah-Hartman
10 Nov, 2015
1 commit
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Pull module updates from Rusty Russell:
"Nothing exciting, minor tweaks and cleanups"* tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
scripts: [modpost] add new sections to white list
modpost: Add flag -E for making section mismatches fatal
params: don't ignore the rest of cmdline if parse_one() fails
modpost: abort if a module symbol is too long
07 Nov, 2015
1 commit
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Pull sound updates from Takashi Iwai:
"Here is the first batch of updates for sound system on 4.4-rc1.Again at this time, the update looks fairly calm; no big changes in
either ALSA core or ASoC infrastructures, rather all small cleanups,
in addition to the new stuff as usual.The biggest changes are about Firewire sound devices. It gained lots
of new device support, and MIDI functionality. Also there are updates
for a few still working-in-progress stuff (topology API and ASoC
skylake), too. But overall, this update should give no big surprise.Some highlights are below:
Core:
- A few more Kconfig items for tinification; it's marked as EXPERT,
so normal user should't be bothered :)
- Refactoring with a new PCM hw_constraint helper
- Removal of unused transfer_ack_{begin,end} PCM callbacksFirewire:
- Restructuring of code subtree, lots of refactoring
- Support AMDTP variants
- New driver for Digidesign 002/003 family
- Adds support for TASCAM FireOne to ALSA OXFW driver
- Add MIDI support to TASCAM and Digi00x devicesHD-Audio:
- Automated modalias generation for codec drivers, finally
- Improvement on heuristics for setting mixer name
- A few fixes for longstanding bugs on Creative CA0132 cards
- Addition of audio rate callback with i915 communication
- Fix suspend issue on recent Dell XPS
- Intel Lewisburg controller supportASoC:
- Updates to the topology userspace interface
- Big updates to the Renesas support (rcar)
- More updates for supporting Intel Sky Lake systems
- New drivers for Asahi Kasei Microdevices AK4613, Allwinnner A10,
Cirrus Logic WM8998, Dialog DA7219, Nuvoton NAU8825, Rockchip
S/PDIF, and Atmel class D amplifierUSB-Audio:
- A fix for newer Roland MIDI devices
- Quirks and workarounds for Zoom R16/24 deviceMisc:
- A few fixes for some old Cirrus CS46xx PCI sound boards
- Yet another fixes for some old ESS Maestro3 PCI sound boards"* tag 'sound-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (330 commits)
ALSA: hda - Add Intel Lewisburg device IDs Audio
ALSA: hda - Apply pin fixup for HP ProBook 6550b
ALSA: hda - Fix lost 4k BDL boundary workaround
ALSA: maestro3: Fix Allegro mute until master volume/mute is touched
ALSA: maestro3: Enable docking support for Dell Latitude C810
ALSA: firewire-digi00x: add another rawmidi character device for MIDI control ports
ALSA: firewire-digi00x: add MIDI operations for MIDI control port
ALSA: firewire-digi00x: rename identifiers of MIDI operation for physical ports
ALSA: cs46xx: Fix suspend for all channels
ALSA: cs46xx: Fix Duplicate front for CS4294 and CS4298 codecs
ALSA: DocBook: Add soc-ops.c and soc-compress.c
ALSA: hda - Add / fix kernel doc comments
ALSA: Constify ratden/ratnum constraints
ALSA: hda - Disable 64bit address for Creative HDA controllers
ALSA: hda/realtek - Dell XPS one ALC3260 speaker no sound after resume back
ALSA: hda/ca0132 - Convert leftover pr_info() and pr_err()
ASoC: fsl: Use #ifdef instead of #if for CONFIG_PM_SLEEP
ASoC: rt5645: Sort the order for register bit defines
ASoC: dwc: add check for master/slave format
ASoC: rt5645: Add the HWEQ for the speaker output
...
26 Oct, 2015
1 commit
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In our ARC toolchain the default linker script includes special
sections used for code and data located in special fast memory.
To avoid warnings we add these sections i.e. .cmem* and .fmt_slot*
to white list.Signed-off-by: Noam Camus
Cc: Rusty Russell
Cc: Quentin Casasnovas
Signed-off-by: Rusty Russell
20 Oct, 2015
1 commit
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For generating modalias entries automatically, move the definition of
struct hda_device_id to linux/mod_devicetable.h and add the handling
of this record in file2alias helper. The new modalias is represented
with combination of vendor id, device id, and api version as
"hdaudio:vNrNaN".This patch itself doesn't convert the existing modaliases. Since they
were added manually, this patch won't give any regression by itself at
this point.[Modified the modalias format to adapt the api_version field, and drop
invalid ANY_ID definition by tiwai]Signed-off-by: Subhransu S. Prusty
Reviewed-by: Vinod Koul
Tested-by: Subhransu S Prusty
Signed-off-by: Takashi Iwai
06 Oct, 2015
1 commit
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The section mismatch warning can be easy to miss during the kernel build
process. Allow it to be marked as fatal to be easily caught and prevent
bugs from slipping in.Setting CONFIG_SECTION_MISMATCH_WARN_ONLY=y causes these warnings to be
non-fatal, since there are a number of section mismatches when using
allmodconfig on some architectures, and we do not want to break these
builds by default.Signed-off-by: Nicolas Boichat
Change-Id: Ic346706e3297c9f0d790e3552aa94e5cff9897a6
Signed-off-by: Rusty Russell
21 Sep, 2015
2 commits
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The device alias now looks like mei:S:uuid:N:*
In that way we can bind different drivers to clients with
different protocol versions if required.Signed-off-by: Tomas Winkler
Signed-off-by: Greg Kroah-Hartman -
scripts/mod/file2alias.c:add_uuid() convert UUID into a single string
which does not conform to the standard little endian UUID formatting.
This patch changes add_uuid() to output same format as %pUL and modifies
the mei driver to match the change.Signed-off-by: Prarit Bhargava
Signed-off-by: Tomas Winkler
Signed-off-by: Greg Kroah-Hartman
09 Sep, 2015
1 commit
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Pull core kbuild updates from Michal Marek:
- modpost portability fix
- linker script fix
- genksyms segfault fix
- fixdep cleanup
- fix for clang detection* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
kbuild: Fix clang detection
kbuild: fixdep: drop meaningless hash table initialization
kbuild: fixdep: optimize code slightly
genksyms: Regenerate parser
genksyms: Duplicate function pointer type definitions segfault
kbuild: Fix .text.unlikely placement
Avoid conflict with host definitions when cross-compiling
20 Aug, 2015
1 commit
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Certain platforms (e. g. BSD-based ones) define some ELF constants
according to host. This patch fixes problems with cross-building
Linux kernel on these platforms (e. g. building ARM 32-bit version
on x86-64 host).Signed-off-by: Pavel Fedin
Signed-off-by: Michal Marek
08 Aug, 2015
1 commit
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Module symbols have a limited length, but currently the build system
allows the build finishing even if the driver code contains a too long
symbol name, which eventually overflows the modversion_info[] item.
The compiler may catch at compiling *.mod.c like
CC xxx.mod.o
xxx.mod.c:18:16: warning: initializer-string for array of chars is too long
but it's merely a warning.This patch adds the check of the symbol length in modpost and stops
the build properly.Currently MODULE_NAME_LEN is defined in modpost.c instead of referring
to the definition in kernel header because including linux/module.h is
messy and we must cover cross-compilation.Signed-off-by: Takashi Iwai
Signed-off-by: Rusty Russell
09 Jul, 2015
2 commits
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Pull power management and ACPI updates from Rafael Wysocki:
"These are fixes on top of the previous PM+ACPI pull requests
(including one fix for a 4.1 regression) and two commits adding
_CLS-based device enumeration support to the ACPI core and the ATA
subsystem that waited for the latest ACPICA changes to be merged.Specifics:
- Fix for an ACPI resources management regression introduced during
the 4.1 cycle (that unfortunately went into -stable) effectively
reverting the bad commit along with the recent fixups on top of it
and using an alternative approach to address the underlying issue
(Rafael J Wysocki).- Fix for a memory leak and an incorrect return value in an error
code path in the ACPI LPSS (Low-Power Subsystem) driver (Rafael J
Wysocki).- Fix for a leftover dangling pointer in an error code path in the
new wakeup IRQ support code (Rafael J Wysocki).- Fix to prevent infinite loops (due to errors in other places) from
happening in the core generic PM domains support code (Geert
Uytterhoeven).- Hibernation documentation update/clarification (Uwe Geuder).
- Support for _CLS-based device enumeration in the ACPI core and in
the ATA subsystem (Suravee Suthikulpanit)"* tag 'pm+acpi-4.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM / wakeirq: Avoid setting power.wakeirq too hastily
ata: ahci_platform: Add ACPI _CLS matching
ACPI / scan: Add support for ACPI _CLS device matching
PM / hibernate: clarify resume documentation
PM / Domains: Avoid infinite loops in attach/detach code
ACPI / LPSS: Fix up acpi_lpss_create_device()
ACPI / PNP: Reserve ACPI resources at the fs_initcall_sync stage -
The tilegx and tilepro compilers use .coldtext for their unlikely
executed text section name, so an __attribute__((cold)) function
will (when compiled with higher optimization levels) land in
the .coldtext section.Modify modpost to add .coldtext to the set of OTHER_TEXT_SECTIONS
so we don't get warnings about referencing such a section in an
__ex_table block, and then also modify arch/tile/lib/memcpy_user_64.c
so that it uses plain ".coldtext" instead of ".coldtext.memcpy".
The latter naming is a relic of an earlier use of -ffunction-sections,
which we no longer use by default.Signed-off-by: Chris Metcalf
Acked-by: Rusty Russell
07 Jul, 2015
1 commit
-
Device drivers typically use ACPI _HIDs/_CIDs listed in struct device_driver
acpi_match_table to match devices. However, for generic drivers, we do not
want to list _HID for all supported devices. Also, certain classes of devices
do not have _CID (e.g. SATA, USB). Instead, we can leverage ACPI _CLS,
which specifies PCI-defined class code (i.e. base-class, subclass and
programming interface). This patch adds support for matching ACPI devices using
the _CLS method.To support loadable module, current design uses _HID or _CID to match device's
modalias. With the new way of matching with _CLS this would requires modification
to the current ACPI modalias key to include _CLS. This patch appends PCI-defined
class-code to the existing ACPI modalias as following.acpi::::..:::
E.g:
# cat /sys/devices/platform/AMDI0600:00/modalias
acpi:AMDI0600:010601:where bb is th base-class code, ss is te sub-class code, and pp is the
programming interface codeSince there would not be _HID/_CID in the ACPI matching table of the driver,
this patch adds a field to acpi_device_id to specify the matching _CLS.static const struct acpi_device_id ahci_acpi_match[] = {
{ ACPI_DEVICE_CLASS(PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff) },
{},
};In this case, the corresponded entry in modules.alias file would be:
alias acpi*:010601:* ahci_platform
Acked-by: Mika Westerberg
Reviewed-by: Hanjun Guo
Signed-off-by: Suravee Suthikulpanit
Signed-off-by: Rafael J. Wysocki
27 Jun, 2015
1 commit
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Pull USB updates from Greg KH:
"Here's the big USB patchset for 4.2-rc1. As is normal these days, the
majority of changes are in the gadget drivers, with a bunch of other
small driver changes.All of these have been in linux-next with no reported issues"
* tag 'usb-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (175 commits)
usb: dwc3: Use ASCII space in Kconfig
usb: chipidea: add work-around for Marvell HSIC PHY startup
usb: chipidea: allow multiple instances to use default ci_default_pdata
dt-bindings: Consolidate ChipIdea USB ci13xxx bindings
phy: add Marvell HSIC 28nm PHY
phy: Add Marvell USB 2.0 OTG 28nm PHY
dt-bindings: Add Marvell PXA1928 USB and HSIC PHY bindings
USB: ssb: use devm_kzalloc
USB: ssb: fix error handling in ssb_hcd_create_pdev()
usb: isp1760: check for null return from kzalloc
cdc-acm: Add support of ATOL FPrint fiscal printers
usb: chipidea: usbmisc_imx: Remove unneeded semicolon
USB: usbtmc: add device quirk for Rigol DS6104
USB: serial: mos7840: Use setup_timer
phy: twl4030-usb: add ABI documentation
phy: twl4030-usb: remove incorrect pm_runtime_get_sync() in probe function.
phy: twl4030-usb: remove pointless 'suspended' test in 'suspend' callback.
phy: twl4030-usb: make runtime pm more reliable.
drivers:usb:fsl: Fix compilation error for fsl ehci drv
usb: renesas_usbhs: Don't disable the pipe if Control write status stage
...