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
04 Sep, 2017
1 commit
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* acpi-sysfs:
ACPI / sysfs: Extend ACPI sysfs to provide access to boot error region* acpi-apei:
ACPI / APEI: Suppress message if HEST not present
ACPI, APEI, EINJ: Subtract any matching Register Region from Trigger resources
ACPI: APEI: fix the wrong iteration of generic error status block
ACPI: APEI: Enable APEI multiple GHES source to share a single external IRQ* acpi-blacklist:
intel_pstate: convert to use acpi_match_platform_list()
ACPI / blacklist: add acpi_match_platform_list()
24 Aug, 2017
1 commit
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The ACPI sysfs interface provides a way to read each ACPI table from
userspace via entries in /sys/firmware/acpi/tables/The BERT table simply provides the size and address of the error
record in BIOS reserved memory and users may want access to this
record.In an earlier age we might have used /dev/mem to retrieve this error
record, but many systems disable /dev/mem for security reasons.Extend this driver to provide read-only access to the data via a
file in a new directory /sys/firmware/acpi/tables/data/BERTAcked-by: Punit Agrawal
Signed-off-by: Tony Luckv4: fix typo reported by Punit
Signed-off-by: Rafael J. Wysocki
18 Aug, 2017
1 commit
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It sometimes is useful to examine the timing of ACPI events during
certain operations only, like during system suspend/resume, so add
pr_debug() statements for that to acpi_global_event_handler().Signed-off-by: Rafael J. Wysocki
03 Jun, 2017
1 commit
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* acpi-button:
Revert "ACPI / button: Change default behavior to lid_init_state=open"* acpica:
ACPICA: Tables: Fix regression introduced by a too early mechanism enabling* acpi-sysfs:
ACPI / sysfs: fix acpi_get_table() leak / acpi-sysfs denial of service
27 Apr, 2017
1 commit
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Reading an ACPI table through the /sys/firmware/acpi/tables interface
more than 65,536 times leads to the following log message:ACPI Error: Table ffff88033595eaa8, Validation count is zero after increment
(20170119/tbutils-423)...and the table being unavailable until the next reboot. Add the
missing acpi_put_table() so the table ->validation_count is decremented
after each read.Reported-by: Anush Seetharaman
Fixes: 174cc7187e6f "ACPICA: Tables: Back port acpi_get_table_with_size() ..."
Signed-off-by: Dan Williams
Cc: 4.10+ # 4.10+
Signed-off-by: Rafael J. Wysocki
13 Apr, 2017
1 commit
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/sys/firmware/acpi/hotplug/force_remove was presumably added to support
auto offlining in the past. This is, however, inherently dangerous for
some hotplugable resources like memory. The memory offlining fails when
the memory is still in use and cannot be dropped or migrated. If we
ignore the failure we are basically allowing for subtle memory
corruption or a crash.We have actually noticed the later while hitting BUG() during the memory
hotremove (remove_memory):
ret = walk_memory_range(PFN_DOWN(start), PFN_UP(start + size - 1), NULL,
check_memblock_offlined_cb);
if (ret)
BUG();it took us quite non-trivial time realize that the customer had
force_remove enabled. Even if the BUG was removed here and we could
propagate the error up the call chain it wouldn't help at all because
then we would hit a crash or a memory corruption later and harder to
debug. So force_remove is unfixable for the memory hotremove. We haven't
checked other hotplugable resources to be prone to a similar problems.Remove the force_remove functionality because it is not fixable currently.
Keep the sysfs file and report an error if somebody tries to enable it.
Encourage users to report about the missing functionality and work with
them with an alternative solution.Reviewed-by: Lee, Chun-Yi
Signed-off-by: Michal Hocko
Signed-off-by: Rafael J. Wysocki
27 Dec, 2016
1 commit
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Sometimes, the users may require a quirk to be provided from ACPI subsystem
core to prevent a GPE from flooding.
Normally, if a GPE cannot be dispatched, ACPICA core automatically prevents
the GPE from firing. But there are cases the GPE is dispatched by _Lxx/_Exx
provided via AML table, and OSPM is lacking of the knowledge to get
_Lxx/_Exx correctly executed to handle the GPE, thus the GPE flooding may
still occur.The existing quirk mechanism can be enabled/disabled using the following
commands to prevent such kind of GPE flooding during runtime:
# echo mask > /sys/firmware/acpi/interrupts/gpe00
# echo unmask > /sys/firmware/acpi/interrupts/gpe00
To avoid GPE flooding during boot, we need a boot stage mechanism.This patch provides such a boot stage quirk mechanism to stop this kind of
GPE flooding. This patch doesn't fix any feature gap but since the new
feature gaps could be found in the future endlessly, and can disappear if
the feature gaps are filled, providing a boot parameter rather than a DMI
table should suffice.Link: https://bugzilla.kernel.org/show_bug.cgi?id=53071
Link: https://bugzilla.kernel.org/show_bug.cgi?id=117481
Link: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/887793
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki
17 Sep, 2016
2 commits
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This patch cleans up sysfs table signature handling code:
1. Convert the signature handling code to use the ACPICA APIs to
benefit from the future improvements of the APIs.2. Add 'filename' attribute in order to handle both BE/LE name tags.
3. Add instance check in order to avoid the possible buffer overflow
related to the table file name.Signed-off-by: Lv Zheng
[ rjw: Changelog ]
Signed-off-by: Rafael J. Wysocki -
OEM tables can be installed via RSDT/XSDT, in this case, they have already
been created under /sys/firmware/acpi/tables.For this kind of tables, normally LoadTable opcode will be executed to load
them. If LoadTable opcode is executed after acpi_sysfs_init(),
acpi_sysfs_table_handler() will be invoked, thus a redundant table file
will be created under /sys/firmware/acpi/tables/dynamic. Then running
"acpidump" on such platform results in an error, complaining blank empty
table (see Link 1 below).The bug can be reproduced by customizing an OEM1 table, allowing it to be
overridden via 'table_sigs' (drivers/acpi/tables.c), adding the following
code to the customized DSDT to load it:Name (OEMH, Zero)
Name (OEMF, One)
If (LEqual (OEMF, One)) {
Store (LoadTable ("OEM1", "Intel", "Test"), OEMH)
Store (Zero, OEMF)
}In order to make sure that the OEM1 table is installed after
acpi_sysfs_init(), acpi_sysfs_init() can be moved before invoking
acpi_load_tables(). Then the following command execution result can be
seen:
# acpidump > acpidump.txt
Could not read table header: /sysfs/firmware/acpi/tables/dynamic/OEM12
Could not get ACPI table at index 17, AE_BAD_HEADERLink: https://bugzilla.kernel.org/show_bug.cgi?id=150841 # [1]
Link: https://github.com/acpica/acpica/commit/ed6a5fbc
Reported-by: Jason Voelz
Reported-by: Francisco Leoner
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki
17 Aug, 2016
1 commit
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Now GPE can be masked via the new acpi_mask_gpe() API and this patch
modifies /sys/firmware/acpi/interrupts/gpexx to use this new facility.Writes "mask/unmask" to this file now invokes acpi_mask_gpe().
Reads from this file now returns new "EN/STS" when the corresponding GPE
hardware register's EN/STS bits are flagged, and new "masked/unmasked"
attribute to indicate the status of the masking mechanism.Signed-off-by: Lv Zheng
[ rjw: Subject ]
Signed-off-by: Rafael J. Wysocki
09 Jul, 2016
1 commit
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Add support for ACPI reconfiguration notifiers to allow subsystems
to react to changes in the ACPI tables that happen after the initial
enumeration. This is similar with the way dynamic device tree
notifications work.The reconfigure notifications supported for now are device add and
device remove.Since ACPICA allows only one table notification handler, this patch
makes the table notifier function generic and moves it out of the
sysfs specific code.Signed-off-by: Octavian Purdila
Reviewed-by: Mika Westerberg
Signed-off-by: Rafael J. Wysocki
05 May, 2016
1 commit
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The problem with ornamental, do-nothing gotos is that they lead to
"forgot to set the error code" bugs. We should be returning -EINVAL
here but we don't. It leads to an uninitalized variable in
counter_show():drivers/acpi/sysfs.c:603 counter_show()
error: uninitialized symbol 'status'.Fixes: 1c8fce27e275 (ACPI: introduce drivers/acpi/sysfs.c)
Signed-off-by: Dan Carpenter
Signed-off-by: Rafael J. Wysocki
26 Oct, 2015
1 commit
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Since kobject_create_and_add() can fail under memory pressure,
its return value needs to be checked against NULL before passing
it to sysfs_create_file().Signed-off-by: Insu Yun
[ rjw: Subject & changelog ]
Signed-off-by: Rafael J. Wysocki
07 Aug, 2015
3 commits
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Since _SB.PCI0 can be used as relative path from root and can be easily
converted into internal trace_method_name format, we allow users to specify
trace_method_name using relative paths from root.
Note this is useful for grub2 for which users failed to pass "\" from the
grub configuration file.Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
This patch updates the method tracing facility as the acpi_debug_trace()
API has been updated to allow it to trace AML interpreter execution, the
meanings and the usages of the API parameters are changed due to the
updates.The new API:
1. Uses ACPI_TRACE_ENABLED flag to indicate the enabling of the tracer;
2. Allows tracer still can be enabled when method name is not specified so
that the AML interpreter execution can be traced without knowing the
method name, which is useful for kernel boot tracing;
3. Supports arbitrary full path name, it doesn't need to be a name related
to an entrance of acpi_evaluate_object().Note that the sysfs parameters are also updated so that when reading the
attribute files, ACPICA internal settings are returned.In order to make the sysfs parameters (acpi.trace_state) available during
boot, this patch adds code to bypass ACPICA semaphore/mutex invocations
when acpi mutex utilities haven't been initialized.This patch doesn't update documentation of method tracing facility, it will
be updated by further patches.Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki -
This patch updates debug_level file, adding ACPI_LV_REPAIR.
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki
10 Mar, 2015
1 commit
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The count field is an unsigned 32bit value, and the
counter_show() function should also treat it as a unsigned
value.Otherwise the counter may show negative number as we found on a
machine:
...
gpe23: 0 invalid
gpe24: -2071733 enabled
gpe25: 0 invalid
...
gpe_all: -2070980
sci: -2070949Signed-off-by: Nan Li
Signed-off-by: Lee, Chun-Yi
Signed-off-by: Rafael J. Wysocki
21 Oct, 2014
1 commit
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This patch is partial linuxized result of the following ACPICA commit:
ACPICA commit: a73b66c6aa1846d055bb6390d9c9b9902f7d804d
Subject: Add "has handler" flag to event/gpe status interfaces.
This change adds a new flag, ACPI_EVENT_FLAGS_HAS_HANDLER to the
acpi_get_event_status and acpi_get_gpe_status external interfaces. It
is set if the event/gpe currently has a handler associated with it.
This patch contains the code to rename ACPI_EVENT_FLAG_HANDLE to
ACPI_EVENT_FLAG_HAS_HANDLER, and the corresponding updates of its usages.Link: https://github.com/acpica/acpica/commit/a73b66c6
Signed-off-by: Lv Zheng
Signed-off-by: Bob Moore
Signed-off-by: Rafael J. Wysocki
19 Mar, 2014
1 commit
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We already have a macro for PREFIX of "ACPI: " in
drivers/acpi/internal.h, so remove the duplicate ones
in ACPI drivers when internal.h is included.Signed-off-by: Hanjun Guo
Signed-off-by: Rafael J. Wysocki
29 Jan, 2014
1 commit
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* acpi-processor:
ACPI / scan: reduce log level of "ACPI: \_PR_.CPU4: failed to get CPU APIC ID"
ACPI / processor: Return specific error value when mapping lapic id* acpi-hotplug:
ACPI / scan: Clear match_driver flag in acpi_bus_trim()* acpi-init:
ACPI / init: Flag use of ACPI and ACPI idioms for power supplies to regulator API* acpi-pm:
ACPI / PM: Use ACPI_COMPANION() to get ACPI companions of devices* acpica:
ACPICA: Remove bool usage from ACPICA.
28 Jan, 2014
1 commit
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The use of "bool" is not safe for ACPICA code where it is originally using
a "BOOLEAN" defined as "unsigned char".This patch removes the only "bool" usage from kernel source tree to reduce
the source code differences between Linux and ACPICA upstream.This patch is required by future acpidump release automation.
Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki
13 Jan, 2014
1 commit
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* acpi-cleanup: (22 commits)
ACPI / tables: Return proper error codes from acpi_table_parse() and fix comment.
ACPI / tables: Check if id is NULL in acpi_table_parse()
ACPI / proc: Include appropriate header file in proc.c
ACPI / EC: Remove unused functions and add prototype declaration in internal.h
ACPI / dock: Include appropriate header file in dock.c
ACPI / PCI: Include appropriate header file in pci_link.c
ACPI / PCI: Include appropriate header file in pci_slot.c
ACPI / EC: Mark the function acpi_ec_add_debugfs() as static in ec_sys.c
ACPI / NVS: Include appropriate header file in nvs.c
ACPI / OSL: Mark the function acpi_table_checksum() as static
ACPI / processor: initialize a variable to silence compiler warning
ACPI / processor: use ACPI_COMPANION() to get ACPI device
ACPI: correct minor typos
ACPI / sleep: Drop redundant acpi_disabled check
ACPI / dock: Drop redundant acpi_disabled check
ACPI / table: Replace '1' with specific error return values
ACPI: remove trailing whitespace
ACPI / IBFT: Fix incorrect inclusion in iSCSI boot firmware module
ACPI / i915: Fix incorrect inclusions via
SFI / ACPI: Fix warnings reported during builds with W=1
...Conflicts:
drivers/acpi/nvs.c
drivers/hwmon/asus_atk0110.c
07 Dec, 2013
1 commit
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Replace direct inclusions of , and
, which are incorrect, with
inclusions and remove some inclusions of those files that aren't
necessary.First of all, , and
should not be included directly from any files that are built for
CONFIG_ACPI unset, because that generally leads to build warnings about
undefined symbols in !CONFIG_ACPI builds. For CONFIG_ACPI set,
includes those files and for CONFIG_ACPI unset it
provides stub ACPI symbols to be used in that case.Second, there are ordering dependencies between those files that always
have to be met. Namely, it is required that be included
prior to so that the acpi_pci_root declarations the
latter depends on are always there. And which provides
basic ACPICA type declarations should always be included prior to any other
ACPI headers in CONFIG_ACPI builds. That also is taken care of including
as appropriate.Signed-off-by: Lv Zheng
Cc: Greg Kroah-Hartman
Cc: Matthew Garrett
Cc: Tony Luck
Cc: "H. Peter Anvin"
Acked-by: Bjorn Helgaas (drivers/pci stuff)
Acked-by: Konrad Rzeszutek Wilk (Xen stuff)
Signed-off-by: Rafael J. Wysocki
21 Nov, 2013
2 commits
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When executing on an ACPI Hardware Reduced hardware, all the ACPI
tables are not exposed in sysfs due to the fact that FACS is
silently ignored by the kernel in the ACPI hardware reduced mode
and, moreover, the acpi_tables_sysfs_init() ACPI table walk
is buggy and stops too soon.The acpi_tables_sysfs_init() function should rely on the acpi_status
return value from acpi_get_table_by_index() to decide whether or not
to stop the iteration (the walk should only be terminated when that
value is AE_BAD_PARAMETER). This way, when running in an ACPI Harware
Reduced environment (where the FACS table is silently ignored by the
kernel) or if some ACPI tables are not correctly memory mapped or
have bad checksums, it will still walk through the remaining tables
that may be correct.[rjw: Changelog]
Signed-off-by: Jeremy Compostella
Signed-off-by: Rafael J. Wysocki -
Currently, each of the ACPI tables exported from
/sys/firmware/acpi/tables is of zero size:$ LANG=C ls -ld /sys/firmware/acpi/tables/*
-r-------- 1 root root 0 Nov 19 09:48 /sys/firmware/acpi/tables/APIC
-r-------- 1 root root 0 Nov 19 09:48 /sys/firmware/acpi/tables/BOOT
-r-------- 1 root root 0 Nov 19 14:25 /sys/firmware/acpi/tables/DSDT
-r-------- 1 root root 0 Nov 19 14:25 /sys/firmware/acpi/tables/FACP
-r-------- 1 root root 0 Nov 19 14:25 /sys/firmware/acpi/tables/FACS
-r-------- 1 root root 0 Nov 19 14:25 /sys/firmware/acpi/tables/MCFG
-r-------- 1 root root 0 Nov 19 14:25 /sys/firmware/acpi/tables/SRAT
drwxr-xr-x 2 root root 0 Nov 19 09:48 /sys/firmware/acpi/tables/dynamic/due to which, user-land tools fail reading each table. For example:
$ acpidump -f /sys/firmware/acpi/tables/SRAT
Could not get input file size: /sys/firmware/acpi/tables/SRATTo deal with the issue, this patch assigns size of each ACPI table to
the corresponding sysfs file.$ LANG=C ls -hld /sys/firmware/acpi/tables/*
-r-------- 1 root root 94 Nov 19 16:45 /sys/firmware/acpi/tables/APIC
-r-------- 1 root root 40 Nov 19 16:45 /sys/firmware/acpi/tables/BOOT
-r-------- 1 root root 58K Nov 19 16:55 /sys/firmware/acpi/tables/DSDT
-r-------- 1 root root 244 Nov 19 16:55 /sys/firmware/acpi/tables/FACP
-r-------- 1 root root 64 Nov 19 16:55 /sys/firmware/acpi/tables/FACS
-r-------- 1 root root 60 Nov 19 16:55 /sys/firmware/acpi/tables/MCFG
-r-------- 1 root root 168 Nov 19 16:45 /sys/firmware/acpi/tables/SRAT
drwxr-xr-x 2 root root 0 Nov 19 16:55 /sys/firmware/acpi/tables/dynamic/Then, user-land tools work well like:
$ acpidump -f /sys/firmware/acpi/tables/SRAT
SRAT @ 0x0000000000000000
0000: 53 52 41 54 A8 00 00 00 02 65 56 4D 57 41 52 45 SRAT.....eVMWARE
0010: 4D 45 4D 50 4C 55 47 20 00 00 04 06 56 4D 57 20 MEMPLUG ....VMW
0020: 01 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 ................
0030: 01 28 00 00 00 00 00 00 00 00 00 00 00 00 00 00 .(..............
0040: 00 00 0A 00 00 00 00 00 00 00 00 00 01 00 00 00 ................
0050: 00 00 00 00 00 00 00 00 01 28 00 00 00 00 00 00 .........(......
0060: 00 00 10 00 00 00 00 00 00 00 F0 BF 00 00 00 00 ................
0070: 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 ................
0080: 01 28 00 00 00 00 00 00 00 00 00 00 01 00 00 00 .(..............
0090: 00 00 00 40 00 00 00 00 00 00 00 00 01 00 00 00 ...@............
00A0: 00 00 00 00 00 00 00 00 ........Signed-off-by: HATAYAMA Daisuke
Acked-by: Toshi Kani
Acked-by: Zhang Rui
Signed-off-by: Rafael J. Wysocki
28 Oct, 2013
1 commit
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* acpi-assorted:
ACPI: Add Toshiba NB100 to Vista _OSI blacklist
ACPI / osl: remove an unneeded NULL check
ACPI / platform: add ACPI ID for a Broadcom GPS chip
ACPI: improve acpi_extract_package() utility
ACPI / LPSS: fix UART Auto Flow Control
ACPI / platform: Add ACPI IDs for Intel SST audio device
x86 / ACPI: fix incorrect placement of __initdata tag
ACPI / thermal: convert printk(LEVEL...) to pr_
ACPI / sysfs: make GPE sysfs attributes only accept correct values
ACPI / EC: Convert all printk() calls to dynamic debug function
ACPI / button: Using input_set_capability() to mark device's event capability
ACPI / osl: implement acpi_os_sleep() with msleep()
01 Oct, 2013
3 commits
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Use kobject_init_and_add() since we have nothing special to do between
kobject_init() and kobject_add().Signed-off-by: Bjorn Helgaas
Signed-off-by: Rafael J. Wysocki -
kobject_add() sets the parent pointer, so we don't need to do it
explicitly.Signed-off-by: Bjorn Helgaas
Signed-off-by: Rafael J. Wysocki -
Set the kobject name via kobject_add() instead of using kobject_set_name(),
which is deprecated per Documentation/kobject.txt.Signed-off-by: Bjorn Helgaas
Signed-off-by: Rafael J. Wysocki
25 Sep, 2013
1 commit
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According to the design, GPE sysfs attributes should accept "disable",
"enable", "clear" and integer numbers as params. Current code checks
"disable", "enable" and "clear" first. If the param doesn't match,
pass it to strtoul() as a string representing an integer number and
assign the return value to the given GPE count. It is missing the check
of whether or not the param really represents an integer number and
strtoul() will return 0 if the string is not a number. This causes any
params except for "enable", "disable", "clear" and a number to make the
GPE count become 0. This patch is to use kstrtoul() to replace strtoul()
and check the return value. If the convertion is successful, use as the
new GPE count. If not, return an error.Signed-off-by: Lan Tianyu
Signed-off-by: Rafael J. Wysocki
04 Jul, 2013
2 commits
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Merge first patch-bomb from Andrew Morton:
- various misc bits
- I'm been patchmonkeying ocfs2 for a while, as Joel and Mark have been
distracted. There has been quite a bit of activity.
- About half the MM queue
- Some backlight bits
- Various lib/ updates
- checkpatch updates
- zillions more little rtc patches
- ptrace
- signals
- exec
- procfs
- rapidio
- nbd
- aoe
- pps
- memstick
- tools/testing/selftests updates* emailed patches from Andrew Morton : (445 commits)
tools/testing/selftests: don't assume the x bit is set on scripts
selftests: add .gitignore for kcmp
selftests: fix clean target in kcmp Makefile
selftests: add .gitignore for vm
selftests: add hugetlbfstest
self-test: fix make clean
selftests: exit 1 on failure
kernel/resource.c: remove the unneeded assignment in function __find_resource
aio: fix wrong comment in aio_complete()
drivers/w1/slaves/w1_ds2408.c: add magic sequence to disable P0 test mode
drivers/memstick/host/r592.c: convert to module_pci_driver
drivers/memstick/host/jmb38x_ms: convert to module_pci_driver
pps-gpio: add device-tree binding and support
drivers/pps/clients/pps-gpio.c: convert to module_platform_driver
drivers/pps/clients/pps-gpio.c: convert to devm_* helpers
drivers/parport/share.c: use kzalloc
Documentation/accounting/getdelays.c: avoid strncpy in accounting tool
aoe: update internal version number to v83
aoe: update copyright date
aoe: perform I/O completions in parallel
... -
Fix various weird constructions of strncpy(dst, src, strlen(src)).
Length limits should be about the space available in the destination,
not repurposed as a method to either always include or always exclude a
trailing NULL byte. Either the NULL should always be copied (using
strlcpy), or it should not be copied (using something like memcpy).
Readable code should not depend on the weird behavior of strncpy when it
hits the length limit. Better to avoid the anti-pattern entirely.[akpm@linux-foundation.org: revert getdelays.c part due to missing bsd/string.h]
Signed-off-by: Kees Cook
Acked-by: Greg Kroah-Hartman [staging]
Acked-by: Rafael J. Wysocki [acpi]
Cc: Martin Schwidefsky
Cc: Heiko Carstens
Cc: Ursula Braun
Cc: Frank Blaschka
Cc: Richard Weinberger
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
12 May, 2013
1 commit
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Modify the generic ACPI hotplug code to be able to check if devices
scheduled for hot-removal may be gracefully removed from the system
using the device offline/online mechanism introduced previously.Namely, make acpi_scan_hot_remove() handling device hot-removal call
device_offline() for all physical companions of the ACPI device nodes
involved in the operation and check the results. If any of the
device_offline() calls fails, the function will not progress to the
removal phase (which cannot be aborted), unless its (new) force
argument is set (in case of a failing offline it will put the devices
offlined by it back online).In support of 'forced' device hot-removal, add a new sysfs attribute
'force_remove' that will reside under /sys/firmware/acpi/hotplug/.Signed-off-by: Rafael J. Wysocki
Reviewed-by: Toshi Kani
19 Mar, 2013
1 commit
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The acpi_hotplug_profile_ktype object should be static, so make that
be the case.Reported-by: Fengguang Wu
Signed-off-by: Rafael J. Wysocki
04 Mar, 2013
1 commit
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Introduce user space interface for manipulating hotplug profiles
associated with ACPI scan handlers.The interface consists of sysfs directories under
/sys/firmware/acpi/hotplug/, one for each hotplug profile, containing
an attribute allowing user space to manipulate the enabled field of
the corresponding profile. Namely, switching the enabled attribute
from '0' to '1' will cause the common hotplug notify handler to be
installed for all ACPI namespace objects representing devices matching
the scan handler associated with the given hotplug profile (and
analogously for the converse switch).Drivers willing to use the new user space interface should add their
ACPI scan handlers with the help of new funtion
acpi_scan_add_handler_with_hotplug().Signed-off-by: Rafael J. Wysocki
Acked-by: Toshi Kani
Tested-by: Toshi Kani
26 Jan, 2013
1 commit
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ACPI_EXCEPTION() already appends a newline, so there is no
need for the invalid GPE message to include one too.Signed-off-by: Colin Ian King
Signed-off-by: Rafael J. Wysocki
15 Nov, 2012
1 commit
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There are definitions that can been converted into new styles by
the recent AcpiSrc while they remain the old styles in the Linux.
This patch fixes those definitions that will be converted by the
AcpiSrc.This patch will not affect the generated vmlinux binary.
This will decrease 97 lines of 20120913 divergence.diff.Signed-off-by: Lv Zheng
Signed-off-by: Rafael J. Wysocki
27 Jul, 2012
1 commit
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...both give the number of chars in the string
without the '\0', as strncmp() wants,
but sizeof() is compile-time.Reported-by: Alan Stern
Cc: Pavel Vasilyev
Signed-off-by: Len Brown
05 Jun, 2012
1 commit
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Current code is ignoring the last character of "enable" and "disable"
in comparisons.https://bugzilla.kernel.org/show_bug.cgi?id=33732
Signed-off-by: Len Brown
