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Prior to memory slot sorting this loop compared all of the user memory
slots for overlap with new entries. With memory slot sorting, we're
just checking some number of entries in the array that may or may not
be user slots. Instead, walk all the slots with kvm_for_each_memslot,
which has the added benefit of terminating early when we hit the first
empty slot, and skip comparison to private slots.
Cc: stable@vger.kernel.org
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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vmcs->cpu indicates whether it exists on the target cpu, -1 means the vmcs
does not exist on any vcpu
If vcpu load vmcs with vmcs.cpu = -1, it can be directly added to cpu's percpu
list. The list can be corrupted if the cpu prefetch the vmcs's list before
reading vmcs->cpu. Meanwhile, we should remove vmcs from the list before
making vmcs->vcpu == -1 be visible
Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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Per Alan Cox, Nx586 did not support WP in supervisor mode, making it a
386 by Linux kernel standards. As such, it is too unsupported now.
Reported-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Link: http://lkml.kernel.org/r/20121128205203.05868eab@pyramind.ukuu.org.uk
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
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Simplify the implementation of sync_core() for the case where we may
not have the CPUID instruction available.
[ v2: stylistic cleanup of the #else clause per suggestion by Borislav
Petkov. ]
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1354132230-21854-9-git-send-email-hpa@linux.intel.com
Cc: Borislav Petkov <bp@alien8.de>
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The check_popad() routine tested for a 386-specific bug, and never
actually did anything useful with it anyway other than print a
message.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1354132230-21854-8-git-send-email-hpa@linux.intel.com
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All 486+ CPUs support WP in supervisor mode, so remove the fallback
386 support code.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1354132230-21854-7-git-send-email-hpa@linux.intel.com
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All 486+ CPUs support INVLPG, so remove the fallback 386 support
code.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1354132230-21854-6-git-send-email-hpa@linux.intel.com
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All 486+ CPUs support BSWAP, so remove the fallback 386 support
code.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1354132230-21854-5-git-send-email-hpa@linux.intel.com
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All 486+ CPUs support XADD, so remove the fallback 386 support
code.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1354132230-21854-4-git-send-email-hpa@linux.intel.com
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All 486+ CPUs support CMPXCHG, so remove the fallback 386 support
code.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1354132230-21854-3-git-send-email-hpa@linux.intel.com
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Remove the CONFIG_M386 symbol from Kconfig so that it cannot be
selected.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1354132230-21854-2-git-send-email-hpa@linux.intel.com
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* pm-tools:
cpupower: IvyBridge (0x3a and 0x3e models) support
cpupower: Provide -c param for cpupower monitor to schedule process on all cores
cpupower tools: Fix warning and a bug with the cpu package count
cpupower tools: Fix malloc of cpu_info structure
cpupower tools: Fix issues with sysfs_topology_read_file
cpupower tools: Fix minor warnings
cpupower tools: Update .gitignore for files created in the debug directories
cpupower tools: Remove brace expansion from clean target
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* pm-sleep:
PM / Freezer: Fixup compile error of try_to_freeze_nowarn()
driver core / PM: move the calling to device_pm_remove behind the calling to bus_remove_device
PM / Hibernate: use rb_entry
PM / sysfs: replace strict_str* with kstrto*
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* pm-runtime:
base: power - use clk_prepare_enable and clk_prepare_disable
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* pm-opp:
PM / OPP: using kfree_rcu() to simplify the code
PM / OPP: predictable fail results for opp_find* functions, v2
PM / OPP: Export symbols for module usage.
PM / OPP: RCU reclaim
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* pm-cpuidle:
cpuidle: Measure idle state durations with monotonic clock
cpuidle: fix a suspicious RCU usage in menu governor
cpuidle: support multiple drivers
cpuidle: prepare the cpuidle core to handle multiple drivers
cpuidle: move driver checking within the lock section
cpuidle: move driver's refcount to cpuidle
cpuidle: fixup device.h header in cpuidle.h
cpuidle / sysfs: move structure declaration into the sysfs.c file
cpuidle: Get typical recent sleep interval
cpuidle: Set residency to 0 if target Cstate not enter
cpuidle: Quickly notice prediction failure in general case
cpuidle: Quickly notice prediction failure for repeat mode
cpuidle / sysfs: move kobj initialization in the syfs file
cpuidle / sysfs: change function parameter
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* pm-cpufreq: (21 commits)
cpufreq: ondemand: update sampling rate only on right CPUs
cpufreq: SPEAr: Add CPUFreq driver
cpufreq: governors: Fix jiffies/cputime mixup (revisited)
cpufreq: ondemand: fix wrong delay sampling rate
cpufreq: exynos: Use static for functions used in only this file
cpufreq: exynos: Broadcast frequency change notifications for all cores
cpufreq: remove use of __devexit
cpufreq: remove use of __devinit
cpufreq: remove use of __devexit_p
cpufreq: Remove unnecessary initialization of a local variable
cpufreq: Make sure target freq is within limits
cpufreq: Avoid calling cpufreq driver's target() routine if target_freq == policy->cur
cpufreq: Fix sparse warning by making local function static
cpufreq: Fix sparse warnings by updating cputime64_t to u64
cpufreq: governors: remove redundant code
cpufreq: return early from __cpufreq_driver_getavg()
cpufreq: fix jiffies/cputime mixup in conservative/ondemand governors
cpufreq: Improve debug prints
cpufreq: Move common part from governors to separate file, v2
cpufreq / core: Fix printing of governor and driver name
...
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* acpi-general: (38 commits)
ACPI / thermal: _TMP and _CRT/_HOT/_PSV/_ACx dependency fix
ACPI: drop unnecessary local variable from acpi_system_write_wakeup_device()
ACPI: Fix logging when no pci_irq is allocated
ACPI: Update Dock hotplug error messages
ACPI: Update Container hotplug error messages
ACPI: Update Memory hotplug error messages
ACPI: Update CPU hotplug error messages
ACPI: Add acpi_handle_<level>() interfaces
ACPI: remove use of __devexit
ACPI / PM: Add Sony Vaio VPCEB1S1E to nonvs blacklist.
ACPI / battery: Correct battery capacity values on Thinkpads
Revert "ACPI / x86: Add quirk for "CheckPoint P-20-00" to not use bridge _CRS_ info"
ACPI: create _SUN sysfs file
ACPI / memhotplug: bind the memory device when the driver is being loaded
ACPI / memhotplug: don't allow to eject the memory device if it is being used
ACPI / memhotplug: free memory device if acpi_memory_enable_device() failed
ACPI / memhotplug: fix memory leak when memory device is unbound from acpi_memhotplug
ACPI / memhotplug: deal with eject request in hotplug queue
ACPI / memory-hotplug: add memory offline code to acpi_memory_device_remove()
ACPI / memory-hotplug: call acpi_bus_trim() to remove memory device
...
Conflicts:
include/linux/acpi.h (two additions at the end of the same file)
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* acpica: (26 commits)
ACPICA: Update version to 20121018
ACPICA: AcpiGetObjectInfo: Add support for ACPI 5 _SUB method
ACPICA: Update for 64-bit generation of recent error message changes
ACPICA: Fix externalize name to complete migration to ACPI_MOVE_NAME
ACPICA: Add starting offset parameter to common dump buffer routine
ACPICA: Deploy ACPI_MOVE_NAME across ACPICA source base
ACPICA: Update support for ACPI 5 MPST table
ACPICA: Enhance error reporting for invalid opcodes and bad ACPI_NAMEs
ACPICA: Add ACPI_MOVE_NAME macro to optimize 4-byte ACPI_NAME copies
ACPICA: AcpiExec: Improve algorithm for tracking memory leaks
ACPICA: Add debug print message for mutex objects that are force-released
ACPICA: Resource Mgr: Small fix for buffer size calculation
ACPICA: Remove extra spaces after periods in the Intel license
ACPICA: Remove extra spaces after periods within comments
ACPICA: Update local C library module comments for ASCII table
ACPICA: Fix for predefined name loop during ACPICA initialization
ACPICA: Fix some typos in comments
ACPICA: ACPICA core: Cleanup empty lines at file start and end
ACPICA: Audit/update for ACPICA return macros and debug depth counter
ACPICA: Fix unmerged acmacros.h divergences.
...
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* acpi-enumeration:
ACPI: remove unnecessary INIT_LIST_HEAD
ACPI / platform: include missed header into acpi_platform.c
platform / ACPI: Attach/detach ACPI PM during probe/remove/shutdown
mmc: sdhci-acpi: add SDHCI ACPI driver
ACPI: add SDHCI to ACPI platform devices
ACPI / PNP: skip ACPI device nodes associated with physical nodes already
i2c / ACPI: add ACPI enumeration support
ACPI / platform: Initialize ACPI handles of platform devices in advance
ACPI / driver core: Introduce struct acpi_dev_node and related macros
ACPI: Allow ACPI handles of devices to be initialized in advance
ACPI / resources: Use AE_CTRL_TERMINATE to terminate resources walks
ACPI: Centralized processing of ACPI device resources
ACPI / platform: Use common ACPI device resource parsing routines
ACPI: Move device resources interpretation code from PNP to ACPI core
ACPI / platform: use ACPI device name instead of _HID._UID
ACPI: Add support for platform bus type
ACPI / ia64: Export acpi_[un]register_gsi()
ACPI / x86: Export acpi_[un]register_gsi()
ACPI: Provide generic functions for matching ACPI device nodes
driver core / ACPI: Move ACPI support to core device and driver types
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* acpi-dev-pm:
ACPI / PM: Allow attach/detach routines to change device power states
ACPI / PM: Introduce os_accessible flag for power_state
ACPI / PM: Add check preventing transitioning to non-D0 state from D3.
ACPI / PM: Fix build problem when CONFIG_ACPI or CONFIG_PM is not set
ACPI / PM: Fix build problem related to acpi_target_system_state()
ACPI / PM: Provide ACPI PM callback routines for subsystems
ACPI / PM: Move device PM functions related to sleep states
ACPI / PM: Provide device PM functions operating on struct acpi_device
ACPI / PM: Split device wakeup management routines
ACPI / PM: Move runtime remote wakeup setup routine to device_pm.c
ACPI / PM: Move device power state selection routine to device_pm.c
ACPI / PM: Move routines for adding/removing device wakeup notifiers
ACPI / PM: Fix device PM kernedoc comments and #ifdefs
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* pm-qos:
PM / QoS: Handle device PM QoS flags while removing constraints
PM / QoS: Resume device before exposing/hiding PM QoS flags
PM / QoS: Document request manipulation requirement for flags
PM / QoS: Fix a free error in the dev_pm_qos_constraints_destroy()
PM / QoS: Fix the return value of dev_pm_qos_update_request()
PM / ACPI: Take device PM QoS flags into account
PM / Domains: Check device PM QoS flags in pm_genpd_poweroff()
PM / QoS: Make it possible to expose PM QoS device flags to user space
PM / QoS: Introduce PM QoS device flags support
PM / QoS: Prepare struct dev_pm_qos_request for more request types
PM / QoS: Introduce request and constraint data types for PM QoS flags
PM / QoS: Prepare device structure for adding more constraint types
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Since directio can work on a raw block device, and the block size of the
device can change under it, we need to do the same thing that
fs/buffer.c now does: read the block size a single time, using
ACCESS_ONCE().
Reading it multiple times can get different results, which will then
confuse the code because it actually encodes the i_blksize in
relationship to the underlying logical blocksize.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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When we fail to get a dquot lock during reclaim, we jump to an error
handler that unlocks the dquot. This is wrong as we didn't lock the
dquot, and unlocking it means who-ever is holding the lock has had
it silently taken away, and hence it results in a lock imbalance.
Found by inspection while modifying the code for the numa-lru
patchset. This fixes a random hang I've been seeing on xfstest 232
for the past several months.
cc: <stable@vger.kernel.org>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
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The direct IO path can do a nested transaction reservation when
writing past the EOF. The first transaction is the append
transaction for setting the filesize at IO completion, but we can
also need a transaction for allocation of blocks. If the log is low
on space due to reservations and small log, the append transaction
can be granted after wating for space as the only active transaction
in the system. This then attempts a reservation for an allocation,
which there isn't space in the log for, and the reservation sleeps.
The result is that there is nothing left in the system to wake up
all the processes waiting for log space to come free.
The stack trace that shows this deadlock is relatively innocuous:
xlog_grant_head_wait
xlog_grant_head_check
xfs_log_reserve
xfs_trans_reserve
xfs_iomap_write_direct
__xfs_get_blocks
xfs_get_blocks_direct
do_blockdev_direct_IO
__blockdev_direct_IO
xfs_vm_direct_IO
generic_file_direct_write
xfs_file_dio_aio_writ
xfs_file_aio_write
do_sync_write
vfs_write
This was discovered on a filesystem with a log of only 10MB, and a
log stripe unit of 256k whih increased the base reservations by
512k. Hence a allocation transaction requires 1.2MB of log space to
be available instead of only 260k, and so greatly increased the
chance that there wouldn't be enough log space available for the
nested transaction to succeed. The key to reproducing it is this
mkfs command:
mkfs.xfs -f -d agcount=16,su=256k,sw=12 -l su=256k,size=2560b $SCRATCH_DEV
The test case was a 1000 fsstress processes running with random
freeze and unfreezes every few seconds. Thanks to Eryu Guan
(eguan@redhat.com) for writing the test that found this on a system
with a somewhat unique default configuration....
cc: <stable@vger.kernel.org>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Andrew Dahl <adahl@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
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XFS_IOC_ZERO_RANGE simply does not work properly for non page cache
aligned ranges. Neither test 242 or 290 exercise this correctly, so
the behaviour is completely busted even though the tests pass.
Fix it to support full byte range granularity as was originally
intended for this ioctl.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
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This reverts the block-device direct access code to the previous
unlocked code, now that fs/buffer.c no longer needs external locking.
With this, fs/block_dev.c is back to the original version, apart from a
whitespace cleanup that I didn't want to revert.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This makes the buffer size handling be a per-page thing, which allows us
to not have to worry about locking too much when changing the buffer
size. If a page doesn't have buffers, we still need to read the block
size from the inode, but we can do that with ACCESS_ONCE(), so that even
if the size is changing, we get a consistent value.
This doesn't convert all functions - many of the buffer functions are
used purely by filesystems, which in turn results in the buffer size
being fixed at mount-time. So they don't have the same consistency
issues that the raw device access can have.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This patch changes three methods to be static and removes their
EXPORT_SYMBOLs in core/dev.c and their external declaration in
netdevice.h. The methods, dev_gro_receive(), napi_frags_finish() and
napi_skb_finish(), which are in the GRO rx path, are not used
outside core/dev.c.
Signed-off-by: Rami Rosen <ramirose@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Make the description of how tcp_ecn works a bit more explicit and clear.
Signed-off-by: Rick Jones <rick.jones2@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Race between bonding_store_slaves_active() and slave manipulation
functions. The bond_for_each_slave use in bonding_store_slaves_active()
is not protected by any synchronization mechanism.
NULL pointer dereference is easy to reach.
Fixed by acquiring the bond->lock for the slave walk.
v2: Make description text < 75 columns
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The module can be loaded with arp_ip_target="255.255.255.255" which makes
it impossible to remove as the function in sysfs checks for that value,
so we make the parameter checks consistent with sysfs.
v2: Fix formatting
v3: Make description text < 75 columns
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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First I would give three observations which will be used later.
Observation 1: if (delayed_work_pending(wq)) cancel_delayed_work(wq)
This usage is wrong because the pending bit is cleared just before the
work's fn is executed and if the function re-arms itself we might end up
with the work still running. It's safe to call cancel_delayed_work_sync()
even if the work is not queued at all.
Observation 2: Use of INIT_DELAYED_WORK()
Work needs to be initialized only once prior to (de/en)queueing.
Observation 3: IFF_UP is set only after ndo_open is called
Related race conditions:
1. Race between bonding_store_miimon() and bonding_store_arp_interval()
Because of Obs.1 we can end up having both works enqueued.
2. Multiple races with INIT_DELAYED_WORK()
Since the works are not protected by anything between INIT_DELAYED_WORK()
and calls to (en/de)queue it is possible for races between the following
functions:
(races are also possible between the calls to INIT_DELAYED_WORK()
and workqueue code)
bonding_store_miimon() - bonding_store_arp_interval(), bond_close(),
bond_open(), enqueued functions
bonding_store_arp_interval() - bonding_store_miimon(), bond_close(),
bond_open(), enqueued functions
3. By Obs.1 we need to change bond_cancel_all()
Bugs 1 and 2 are fixed by moving all work initializations in bond_open
which by Obs. 2 and Obs. 3 and the fact that we make sure that all works
are cancelled in bond_close(), is guaranteed not to have any work
enqueued.
Also RTNL lock is now acquired in bonding_store_miimon/arp_interval so
they can't race with bond_close and bond_open. The opposing work is
cancelled only if the IFF_UP flag is set and it is cancelled
unconditionally. The opposing work is already cancelled if the interface
is down so no need to cancel it again. This way we don't need new
synchronizations for the bonding workqueue. These bugs (and fixes) are
tied together and belong in the same patch.
Note: I have left 1 line intentionally over 80 characters (84) because I
didn't like how it looks broken down. If you'd prefer it otherwise,
then simply break it.
v2: Make description text < 75 columns
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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There is a standalone if, seems to be a regression of commit
"nl80211/cfg80211: add VHT MCS support".
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Currently of_register_spi_devices() function registers all SPI devices,
independetly from their status property in device tree. According to
"ePAPR 1.1" spec, device should only be registered if there is no
"status" property, or it has "ok" (or "okay") value (see
of_device_is_available()). In case of "platform devices",
of_platform_device_create_pdata() checks for "status" and ensures
that disabled devices are not pupulated. But such check for SPI buses
was missing until now. Fix it.
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@sysgo.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Currently of_mdiobus_register() function registers all PHY devices,
independetly from their status property in device tree. According to
"ePAPR 1.1" spec, device should only be registered if there is no
"status" property, or it has "ok" (or "okay") value (see
of_device_is_available()). In case of "platform devices",
of_platform_device_create_pdata() checks for "status" and ensures
that disabled devices are not pupulated. But such check for MDIO buses
was missing until now. Fix it.
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@sysgo.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Currently of_i2c_register_devices() function registers all i2c devices,
independently from their status property in device tree. According to
"ePAPR 1.1" spec, device should only be registered if there is no
"status" property, or it has "ok" (or "okay") value (see
of_device_is_available()). In case of "platform devices",
of_platform_device_create_pdata() checks for "status" and ensures
that disabled devices are not populated. But such check for i2c buses
was missing until now. Fix it.
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@sysgo.com>
Acked-by: Rob Herring <robherring2@gmail.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Reviewed-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Commit c22618a1, "drivers/of: Constify device_node->name and
->path_component_name" changes device_node name to a const value, but
the PowerPC scom code still assigns it to a non-void field in
debugfs_blob_wrapper. The /right/ solution might be to change the
debugfs_blob_wrapper->data to also be const, but that is a bit
risky. Instead, cast the value to (void*). It is a bit ugly, but it
is the safest change until it can be investigated where
debugfs_blob_wrapper can be modified.
Reported-by: Michael Neuling <mikey@neuling.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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The existing function does not change the passed device_node pointer. It is
only handed to of_get_property which itself takes a const struct device_node.
of_parse_phandle() can therefore take a const pointer as well.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
[grant.likely: drop extraneous whitespace change]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Kernel does not contain symbol HAVE_SPARSE_IRQ. Definition
in arch/arm64/Kconfig seems typo because valid symbol is
MAY_HAVE_SPARSE_IRQ.
In any case SPARSE_IRQ is selected by default and we just
remove selecting of this symbol.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Fixes a term in Documentation/arm64/memory.txt
The modification is based on Catalin Marinas <catalin.marinas@arm.com>'s
suggestion:
"memory" in "ffffffc000000000 ffffffffffffffff 256GB memory"
should be treated as "kernel logical memory map".
Signed-off-by: Fu Wei <tekkamanninja@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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The AArch64 Linux port relies on the mm code to wrprotect clean ptes.
This however is not the case with newly created ptes and
PAGE_SHARED(_EXEC) is writable but !dirty.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: <stable@vger.kernel.org>
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Some compiler versions complain.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Don't return a hard coded -EFAULT, but rather the error
that occurred in the flow.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Add a debugfs file showing the rate at which
the last packet is received.
Signed-off-by: Saravana <saravanad@posedge.com>
[fix whitespace]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Currently the logic to fill a struct rate_info with
a STA's last RX rate is accessible only in the cfg.c.
As the RX rate calculation might be needed elsewhere,
split this out into a separate function.
Signed-off-by: Saravana <saravanad@posedge.com>
[fix various whitespace issues, reword commit log]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Add a debugfs file showing the current tx rate.
The information available in the rc_stats file
doesn't evidently provides us the current tx rate.
This patch adds the support for the same.
Signed-off-by: Saravana <saravanad@posedge.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
From Kukjin Kim <kgene.kim@samsung.com>:
Samsung fixes for v3.7
* 'v3.7-samsung-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: S3C24XX: Fix potential NULL pointer dereference error
This would have been ok to delay to 3.8 according to Kukjin, but since
it's an obvious bug fix and a potential NULL pointer dereference, it
seem appropriate for a late 3.7 submission.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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We use XENMEM_add_to_physmap_range which is the preferred interface
for foreign mappings.
Acked-by: Mukesh Rathor <mukesh.rathor@oracle.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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