| Commit message (Collapse) | Author | Age |
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In APEI firmware first mode, hardware error is reported by hardware to
firmware firstly, then firmware reports the error to Linux in a GHES
error record via POLL/SCI/IRQ/NMI etc.
This may result in some issues if OS has no full APEI support. So
some firmware implementation will work in a back-compatible mode by
default. Where firmware will only notify OS in old-fashion, without
GHES record. For example, for a fatal hardware error, only NMI is
signaled, no GHES record.
To gain full APEI power on these machines, APEI bit in generic _OSC
call can be specified to tell firmware that Linux has full APEI
support. This patch adds the APEI bit support in generic _OSC call.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Some machine may have broken firmware so that GHES and firmware first
mode should be disabled. This patch adds support to that.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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GHES (Generic Hardware Error Source) is used to process hardware error
notification in firmware first mode. But because firmware first mode
can be turned on but can not be turned off, it is unreasonable to
unload the GHES module with firmware first mode turned on. To avoid
confusion, this patch makes GHES can be enabled/disabled in
configuration time, but not built as module and unloaded at run time.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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This patch changes APEI EINJ and ERST to use apei_exec_run for
mandatory actions, and apei_exec_run_optional for optional actions.
Cc: Thomas Renninger <trenn@novell.com>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Some actions in APEI ERST and EINJ tables are optional, for example,
ACPI_EINJ_BEGIN_OPERATION action is used to do some preparation for
error injection, and firmware may choose to do nothing here. While
some other actions are mandatory, for example, firmware must provide
ACPI_EINJ_GET_ERROR_TYPE implementation.
Original implementation treats all actions as optional (that is, can
have no instructions), that may cause issue if firmware does not
provide some mandatory actions. To fix this, this patch adds
apei_exec_run_optional, which should be used for optional actions.
The original apei_exec_run should be used for mandatory actions.
Cc: Thomas Renninger <trenn@novell.com>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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printk is used by GHES to report hardware errors. Normally, the
printk will be ratelimited to avoid too many hardware error reports in
kernel log. Because there may be thousands or even millions of
corrected hardware errors during system running.
That is different for fatal hardware error, because system will go
panic as soon as possible, there will be no more than several error
records. And these error records are valuable for system fault
diagnosis, so they should not be ratelimited.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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When we debug ERST table with erst-dbg, if the error record in ERST
table is too long(>4K), it can't be read out. So this patch increases
the buffer size to 16K to ensure such error records can be read from
ERST table.
Signed-off-by: Chen Gong <gong.chen@linux.intel.com>
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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erst_dbg module can not work when ERST is disabled. So disable module
loading to provide clearer information to user.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
tcm_fc: Handle DDP/SW fc_frame_payload_get failures in ft_recv_write_data
target: Fix bug for transport_generic_wait_for_tasks with direct operation
target: iscsi_target depends on NET
target: Fix WRITE_SAME_16 lba assignment breakage
MAINTAINERS: Add target-devel list for drivers/target/
iscsi-target: Fix CONFIG_SMP=n and CONFIG_MODULES=n build failure
iscsi-target: Fix snprintf usage with MAX_PORTAL_LEN
iscsi-target: Fix uninitialized usage of cmd->pad_bytes
iscsi-target: strlen() doesn't count the terminator
iscsi-target: Fix NULL dereference on allocation failure
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Problem: HW DDP context was not invalidated in case of ABORTS, etc...
This leads to the problem where memory pages which are used for DDP
as user descriptor could get reused for some other purpose (such as to
satisfy new memory allocation request either by kernel or user mode threads)
and since HW DDP context was not invalidated, HW continue to write to
those pages, hence causing memory corruption.
Fix: Either on incoming ABORTS or due to exchange time out, allowed the
target to cleanup HW DDP context if it was setup for respective ft_cmd.
Added new function to perform this cleanup, furthur it can be enhanced
for other cleanup activity. Fix ft_recv_write_data() to properly handle
fc_frame_payload_get to return pointer to payload if it exist. If there is
no payload which is most common case (+ve case in case if DDP is working
as expected, it will return NULL. Yes, scope of buf is limited to printk.
Invalidation of HW context (which is done inside ft_invl_hw_context() is
necessary in SUCCESS and FAILURE case of DDP. Hence invalidation is DONE
as long as there was DDP setup (whether it worked correctly or not,
NOTE: For some reason, if there is any error w.r.t DDP such as out of
order packet reception, HW simply post the full packet in rx queue.
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Cc: Robert W Love <robert.w.love@intel.com>
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
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This patch fixes a bug in transport_handle_cdb_direct() usage with target_core
where transport_generic_wait_for_tasks() was bypassing active I/O + usage of
cmd->t_transport_stop_comp because cmd->t_transport_active=1 was not being set
before dispatching with transport_generic_new_cmd(). The fix follows existing
usage in transport_generic_handle_cdb*() -> transport_add_cmd_to_queue() and
set these directly, as well as handle transport_generic_new_cmd() exceptions
for QUEUE_FULL and CHECK_CONDITION instead of propigating up to RX context
fabric code.
The bug was manifesting itself with the following SLUB poison overwritten
warnings with iscsi-target v4.1 LUNs using the new process context direct
operation during session reinstatement with active I/O exception handling:
[885410.498267] =============================================================================
[885410.621622] BUG lio_cmd_cache: Poison overwritten
[885410.621791] -----------------------------------------------------------------------------
[885410.621792]
[885410.623420] INFO: 0xffff880000cf3750-0xffff880000cf378d. First byte 0x6a instead of 0x6b
[885410.626332] INFO: Allocated in iscsit_allocate_cmd+0x1c/0xd4 [iscsi_target_mod] age=345 cpu=1 pid=22554
[885411.855189] INFO: Freed in iscsit_release_cmd+0x208/0x217 [iscsi_target_mod] age=1410 cpu=1 pid=22554
[885411.856048] INFO: Slab 0xffffea000002d480 objects=22 used=0 fp=0xffff880000cf7300 flags=0x4080
[885411.856368] INFO: Object 0xffff880000cf33c0 @offset=13248 fp=0xffff880000cf6780
<SNIP>
[885411.955678] Pid: 22554, comm: iscsi_trx Not tainted 3.0.0-rc7+ #30
[885411.956040] Call Trace:
[885411.957029] [<ffffffff810e5cf9>] print_trailer+0x12e/0x137
[885412.752879] [<ffffffff810e61d9>] check_bytes_and_report+0xb9/0xfd
[885412.754933] [<ffffffff810e62d2>] check_object+0xb5/0x192
[885412.755099] [<ffffffff810e6445>] __free_slab+0x96/0x13a
[885412.757008] [<ffffffff810e652a>] discard_slab+0x41/0x43
[885412.758171] [<ffffffff810e7a4c>] __slab_free+0xf3/0xfe
[885412.761027] [<ffffffffa030a536>] ? iscsit_release_cmd+0x208/0x217 [iscsi_target_mod]
[885412.761354] [<ffffffff810e7e95>] kmem_cache_free+0x6f/0xac
[885412.761536] [<ffffffffa030a536>] iscsit_release_cmd+0x208/0x217 [iscsi_target_mod]
[885412.762056] [<ffffffffa020e467>] ? iblock_free_task+0x34/0x39 [target_core_iblock]
[885412.762368] [<ffffffffa0314131>] lio_release_cmd+0x10/0x12 [iscsi_target_mod]
[885412.764129] [<ffffffffa02c2254>] transport_release_cmd+0x2f/0x33 [target_core_mod]
[885412.805024] [<ffffffffa02c230e>] transport_generic_remove+0xb6/0xc3 [target_core_mod]
[885412.806424] [<ffffffff81035b5f>] ? try_to_wake_up+0x1bd/0x1bd
[885412.809033] [<ffffffffa02c241f>] transport_generic_free_cmd+0x75/0x7d [target_core_mod]
[885412.810066] [<ffffffffa02c2643>] transport_generic_wait_for_tasks+0x21c/0x22b [target_core_mod]
[885412.811056] [<ffffffff8139f0b1>] ? mutex_lock+0x11/0x32
[885412.813059] [<ffffffff8139f0b1>] ? mutex_lock+0x11/0x32
[885412.813200] [<ffffffffa030b81d>] iscsit_close_connection+0x1d5/0x63a [iscsi_target_mod]
[885412.813517] [<ffffffffa0300a82>] iscsit_take_action_for_connection_exit+0xdb/0xe0 [iscsi_target_mod]
[885412.813851] [<ffffffffa03111e9>] iscsi_target_rx_thread+0x11f6/0x1221 [iscsi_target_mod]
[885412.829024] [<ffffffff81033e8d>] ? pick_next_task_fair+0xbe/0x10e
[885412.831010] [<ffffffffa030fff3>] ? iscsit_handle_scsi_cmd+0x91d/0x91d [iscsi_target_mod]
[885412.833011] [<ffffffffa030fff3>] ? iscsit_handle_scsi_cmd+0x91d/0x91d [iscsi_target_mod]
[885412.835010] [<ffffffff8105388a>] kthread+0x7d/0x85
[885412.837022] [<ffffffff813a7124>] kernel_thread_helper+0x4/0x10
[885412.838008] [<ffffffff8105380d>] ? kthread_worker_fn+0x145/0x145
[885412.840047] [<ffffffff813a7120>] ? gs_change+0x13/0x13
[885412.842007] FIX lio_cmd_cache: Restoring 0xffff880000cf3750-0xffff880000cf378d=0x6
Cc: Christoph Hellwig <hch@lst.de>
Cc: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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iscsi target code uses lots on network interface functions, so it
should depend on NET. Fixes many build errors when NET is not enabled:
ERROR: "kernel_sendmsg" [drivers/target/iscsi/iscsi_target_mod.ko] undefined!
ERROR: "in_aton" [drivers/target/iscsi/iscsi_target_mod.ko] undefined!
ERROR: "sock_release" [drivers/target/iscsi/iscsi_target_mod.ko] undefined!
ERROR: "kernel_listen" [drivers/target/iscsi/iscsi_target_mod.ko] undefined!
ERROR: "kernel_setsockopt" [drivers/target/iscsi/iscsi_target_mod.ko] undefined!
ERROR: "kernel_recvmsg" [drivers/target/iscsi/iscsi_target_mod.ko] undefined!
ERROR: "kernel_accept" [drivers/target/iscsi/iscsi_target_mod.ko] undefined!
ERROR: "sock_create" [drivers/target/iscsi/iscsi_target_mod.ko] undefined!
ERROR: "kernel_bind" [drivers/target/iscsi/iscsi_target_mod.ko] undefined!
ERROR: "in6_pton" [drivers/target/iscsi/iscsi_target_mod.ko] undefined!
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch fixes a bug in WRITE_SAME_16 LBA assignment where get_unaligned_be16()
is incorrectly being used instead of get_unaligned_be64() for a 64-bit LBA.
This was introduced with:
commit a1d8b49abd60ba5d09e7c968731abcb0f8f1cbf6
Author: Andy Grover <agrover@redhat.com>
Date: Mon May 2 17:12:10 2011 -0700
target: Updates from AGrover and HCH (round 3)
(target: inline struct se_transport_task into struct se_cmd)
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch fixes the following CONFIG_SMP=n and CONFIG_MODULES=n build
failure, because iscsit_thread_get_cpumask() is defined as a macro in
iscsi_target.c, but needed by iscsi_target_login.c
drivers/built-in.o: In function `iscsi_post_login_handler':
iscsi_target_login.c:(.text+0x13a315): undefined reference to `iscsit_thread_get_cpumask'
iscsi_target_login.c:(.text+0x13a4b4): undefined reference to `iscsit_thread_get_cpumask'
make: *** [.tmp_vmlinux1] Error 1
Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch makes lio_target_call_addnptotpg() use sprintf() with
MAX_PORTAL_LEN + 1 to address the following smatch warning:
drivers/target/iscsi/iscsi_target_configfs.c +184 lio_target_call_addnptotpg(21)
error: snprintf() chops off the last chars of 'name': 257 vs 256
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch fixes an uninitialized usage of cmd->pad_bytes inside of
iscsit_handle_text_cmd() introduced during a v4.1 change to use cmd
members instead of local pad_bytes variables.
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch fixes an off by one check in iscsit_add_tiqn() because the
NULL terminator isn't taken into consideration.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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This patch fixes a bug in iscsi_target_init_negotiation() where
the "goto out" path dereferences "login" which is NULL upon a
memory allocation failure.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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* 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6:
dt: add of_alias_scan and of_alias_get_id
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The patch adds function of_alias_scan to populate a global lookup
table with the properties of 'aliases' node and function
of_alias_get_id for drivers to find alias id from the lookup table.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
[grant.likely: add locking and rework parse loop]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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i386 allmodconfig:
drivers/built-in.o: In function `aat2870_bl_remove':
aat2870_bl.c:(.text+0x414f9): undefined reference to `backlight_device_unregister'
drivers/built-in.o: In function `aat2870_bl_probe':
aat2870_bl.c:(.text+0x418fc): undefined reference to `backlight_device_register'
aat2870_bl.c:(.text+0x41a31): undefined reference to `backlight_device_unregiste
Cc: Jin Park <jinyoungp@nvidia.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Cc: Axel Lin <axel.lin@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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- Current implementation tests wrong value for setting
aat2870_bl->max_current.
- In the current implementation, we cannot differentiate between 2 cases:
a) if pdata->max_current is not set , or
b) pdata->max_current is set to AAT2870_CURRENT_0_45 (which is also 0).
Fix it by setting AAT2870_CURRENT_0_45 to be 1 and adjust the equation in
aat2870_brightness() accordingly.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Tested-by: Jin Park <jinyoungp@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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backlight_device_register
backlight_device_register() returns ERR_PTR() on error.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Jin Park <jinyoungp@nvidia.com>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix tpm_tis.c build when CONFIG_ACPI is not enabled by providing a stub
function. Fixes many build errors/warnings:
drivers/char/tpm/tpm_tis.c:89: error: dereferencing pointer to incomplete type
drivers/char/tpm/tpm_tis.c:89: warning: type defaults to 'int' in declaration of 'type name'
drivers/char/tpm/tpm_tis.c:89: error: request for member 'list' in something not a structure or union
...
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Leendert van Doorn <leendert@watson.ibm.com>
Cc: James Morris <jmorris@namei.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Update the module parameters when platform data is used. This means
that they can be read from /sys/module/ramoops/parameters in order to
parse the memory area.
Signed-off-by: Sergiu Iordache <sergiu@chromium.org>
Cc: Marco Stornelli <marco.stornelli@gmail.com>
Cc: Seiji Aguchi <seiji.aguchi@hds.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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As the comment explains, the intention of the code is to clear the
OMAP_RTC_CTRL_MODE_12_24 bit, but instead it only clears the
OMAP_RTC_CTRL_SPLIT and OMAP_RTC_CTRL_AUTO_COMP bits, which should be
kept. OMAP_RTC_CTRL_DISABLE, OMAP_RTC_CTRL_SET_32_COUNTER,
OMAP_RTC_CTRL_TEST, and OMAP_RTC_CTRL_ROUND_30S are also better off
being cleared.
Signed-off-by: Daniel Glöckner <dg@emlix.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'pstore-efi' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
efivars: fix warnings when CONFIG_PSTORE=n
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drivers/firmware/efivars.c:161: warning: ‘utf16_strlen’ defined but not used
utf16_strlen() is only used inside CONFIG_PSTORE - make this "static inline"
to shut the compiler up [thanks to hpa for the suggestion].
drivers/firmware/efivars.c:602: warning: initialization from incompatible pointer type
Between v1 and v2 of this patch series we decided to make the "part" number
unsigned - but missed fixing the stub version of efi_pstore_write()
Acked-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Mike Waychison <mikew@google.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (28 commits)
ACPI: delete stale reference in kernel-parameters.txt
ACPI: add missing _OSI strings
ACPI: remove NID_INVAL
thermal: make THERMAL_HWMON implementation fully internal
thermal: split hwmon lookup to a separate function
thermal: hide CONFIG_THERMAL_HWMON
ACPI print OSI(Linux) warning only once
ACPI: DMI workaround for Asus A8N-SLI Premium and Asus A8N-SLI DELUX
ACPI / Battery: propagate sysfs error in acpi_battery_add()
ACPI / Battery: avoid acpi_battery_add() use-after-free
ACPI: introduce "acpi_rsdp=" parameter for kdump
ACPI: constify ops structs
ACPI: fix CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS
ACPI: fix 80 char overflow
ACPI / Battery: Resolve the race condition in the sysfs_remove_battery()
ACPI / Battery: Add the check before refresh sysfs in the battery_notify()
ACPI / Battery: Add the hibernation process in the battery_notify()
ACPI / Battery: Rename acpi_battery_quirks2 with acpi_battery_quirks
ACPI / Battery: Change 16-bit signed negative battery current into correct value
ACPI / Battery: Add the power unit macro
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'from-akpm', 'kexec-param' and 'misc' into release
Conflicts:
Documentation/kernel-parameters.txt
Signed-off-by: Len Brown <len.brown@intel.com>
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This message gets repeated on some machines:
https://bugzilla.kernel.org/show_bug.cgi?id=29292
Signed-off-by: Len Brown <len.brown@intel.com>
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Structs battery_file, acpi_dock_ops, file_operations,
thermal_cooling_device_ops, thermal_zone_device_ops, kernel_param_ops
are not changed in runtime. It is safe to make them const.
register_hotplug_dock_device() was altered to take const "ops" argument
to respect acpi_dock_ops' const notion.
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Trivial fix for 80 char line overflow in drivers/acpi/pci_root.c
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Len Brown <len.brown@intel.com>
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There is a problem with putting the first kernel in EFI virtual mode,
it is that when the second kernel comes up it tries to initialize the
EFI again and once we have put EFI in virtual mode we can not really
do that.
Actually, EFI is not necessary for kdump, we can boot the second kernel
with "noefi" parameter, but the boot will mostly fail because 2nd kernel
cannot find RSDP.
In this situation, we introduced "acpi_rsdp=" kernel parameter, so that
kexec-tools can pass the "noefi acpi_rsdp=X" to the second kernel to
make kdump works. The physical address of the RSDP can be got from
sysfs(/sys/firmware/efi/systab).
Signed-off-by: Takao Indoh <indou.takao@jp.fujitsu.com>
Reviewed-by: WANG Cong <amwang@redhat.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Linux supports some optional features, but it should notify the BIOS about
them via the _OSI method. Currently Linux doesn't notify any, which might
make such features not work because the BIOS doesn't know about them.
Jarosz has a system which needs this to make ACPI processor aggregator
device work.
Reported-by: "Jarosz, Sebastian" <sebastian.jarosz@intel.com>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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THERMAL_HWMON is implemented inside the thermal_sys driver and has no
effect on drivers implementing thermal zones, so they shouldn't see
anything related to it in <linux/thermal.h>. Making the THERMAL_HWMON
implementation fully internal has two advantages beyond the cleaner
design:
* This avoids rebuilding all thermal drivers if the THERMAL_HWMON
implementation changes, or if CONFIG_THERMAL_HWMON gets enabled or
disabled.
* This avoids breaking the thermal kABI in these cases too, which should
make distributions happy.
The only drawback I can see is slightly higher memory fragmentation, as
the number of kzalloc() calls will increase by one per thermal zone. But
I doubt it will be a problem in practice, as I've never seen a system with
more than two thermal zones.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Rene Herman <rene.herman@gmail.com>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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We'll soon need to reuse it.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Rene Herman <rene.herman@gmail.com>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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It's about time to revert 16d752397301b9 ("thermal: Create
CONFIG_THERMAL_HWMON=n"). Anybody running a kernel >= 2.6.40 would also
be running a recent enough version of lm-sensors.
Actually having CONFIG_THERMAL_HWMON is pretty convenient so instead of
dropping it, we keep it but hide it.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Rene Herman <rene.herman@gmail.com>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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DMI workaround for A8N-SLI Premium and A8N-SLI DELUXE
to enable the s3 suspend old ordering.
http://bugzilla.kernel.org/show_bug.cgi?id=9528
Tested-by: Heiko Ettelbrück <hbruckynews@gmx.de>
Tested-by: Brian Beardall <brian@rapsure.net>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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https://bugzilla.kernel.org/show_bug.cgi?id=24492
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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https://bugzilla.kernel.org/show_bug.cgi?id=24492
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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The following was observed by Steve Rostedt on 3.0.0-rc5
Backtrace:
irq 16: nobody cared (try booting with the "irqpoll" option)
Pid: 65, comm: irq/16-uhci_hcd Not tainted 3.0.0-rc5-test+ #94
Call Trace:
[<ffffffff810aa643>] __report_bad_irq+0x37/0xc1
[<ffffffff810aaa2d>] note_interrupt+0x14e/0x1c9
[<ffffffff810a9a05>] ? irq_thread_fn+0x3c/0x3c
[<ffffffff810a990e>] irq_thread+0xf6/0x1b1
[<ffffffff810a9818>] ? irq_finalize_oneshot+0xb3/0xb3
[<ffffffff8106b4d6>] kthread+0x9f/0xa7
[<ffffffff814f1f04>] kernel_thread_helper+0x4/0x10
[<ffffffff8103ca09>] ? finish_task_switch+0x7b/0xc0
[<ffffffff814eac78>] ? retint_restore_args+0x13/0x13
[<ffffffff8106b437>] ? __init_kthread_worker+0x5a/0x5a
[<ffffffff814f1f00>] ? gs_change+0x13/0x13
handlers:
[<ffffffff810a912d>] irq_default_primary_handler threaded [<ffffffff8135eaa6>] usb_hcd_irq
[<ffffffff810a912d>] irq_default_primary_handler threaded [<ffffffff8135eaa6>] usb_hcd_irq
Disabling IRQ #16
The problem being that a device triggers boot interrupts (due to threaded
interrupt handling and masking of the IO-APIC), which are forwarded
to the PIRQ line of the device. These interrupts are not handled on the PIRQ
line because the interrupt handler is not present there.
This should have already been fixed by CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS.
However some parts of the quirk got lost in the ACPI merge. This is a resent of
the patch proposed in 2009.
See http://lkml.org/lkml/2009/9/7/192
Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Tested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Len Brown <len.brown@intel.com>
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Make sure the error return from sysfs_add_battery() is checked and
propagated out from acpi_battery_add().
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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When acpi_battery_add_fs() fails the error handling code does not clean
up completely. Moreover, it does not return resulting in a
use-after-free.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Use battery->lock in sysfs_remove_battery() to make
checking, removing, and clearing bat.dev atomic.
This is necessary because sysfs_remove_battery() may
be invoked concurrently from different paths.
https://bugzilla.kernel.org/show_bug.cgi?id=35642
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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In the commit 25be5821, add the refresh sysfs when system resumes
from suspending. But it didn't check that the battery exists. This
will cause battery sysfs files added when the battery doesn't exist.
This patch add the check before refreshing.
https://bugzilla.kernel.org/show_bug.cgi?id=35642
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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The Commit 25be58215 has added a PM notifier to refresh the sys in order
to deal with the unit change of the Battery Present Rate. But it just
consided the suspend situation. The problem also will happen during the
hibernation according the bug 28192.
https://bugzilla.kernel.org/show_bug.cgi?id=28192
This patch adds the hibernation process and fix the bug.
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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This patch is cosmetic only, and makes no functional change.
Since the acpi_battery_quirks has been deleted, rename
acpi_battery_quirks2 with acpi_battery_quirks to clean the code.
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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This patch is for some machines which report the battery current
as a 16-bit signed negative when it is charging. This is caused
by DSDT bug. The commit bc76f90b8a5cf4aceedf210d08d5e8292f820cec
has resolved the problem for Acer laptops. But some other machines
also have such problem.
https://bugzilla.kernel.org/show_bug.cgi?id=33722
Since it is improper that the current is above 32A on laptops
whether on AC or on battery, this patch is to check the current and
take its absolute value as current and producing a message when it
is negative in s16.
Remove Acer quirk, as this workaround handles Acer too.
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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This patch is cosmetic only, and makes no functional change.
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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