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It turned out that it is almost impossible to trust ACPI, BIOS & Co.
regarding the C states. This was the reason to switch the local apic
timer off in C2 state already. OTOH there are sane and well behaving
systems, which get punished by that decision.
Allow the user to confirm that the local apic timer is trustworthy in C2
state. This keeps the default behaviour on the safe side.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Dothan/BaniasPentium M)"
This reverts commit 25496caec111481161e7f06bbfa12a533c43cc6f, which
broke bootup on at least Ingo's ThinkPad T60. Need to figure out
exactly what is wrong before we can re-do the logic.
Requested-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Thomas Renninger <trenn@suse.de>
Cc: Len Brown <len.brown@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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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:
ACPI: IA64: fix %ll build warnings
ACPI: IA64: fix allnoconfig build
ACPI: Only use IPI on known broken machines (AMD, Dothan/BaniasPentium M)
ACPI: ibm-acpi: allow module to load when acpi notifiers can't be set (v2)
ACPI: parse 2nd MADT by default
ACPICA: revert "acpi_serialize" changes
sony-laptop: MAINTAINERS fix entry, add L: and W:
ACPI: resolve HP nx6125 S3 immediate wakeup regression
ACPI: Add support to parse 2nd MADT
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NULL checks should be before the first dereference.
Spotted by the Coverity checker.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Ondrej Zajicek <santiago@crfreenet.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
i2c/ds1374: Check workqueue creation status
i2c-i801: Restore the device state before leaving
i2c-amd8111: Missed cleanup
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* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[NETFILTER]: nat: avoid rerouting packets if only XFRM policy key changed
[NETFILTER]: nf_conntrack_netlink: add missing dependency on NF_NAT
[NET]: fix up misplaced inlines.
[SCTP]: Correctly reset ssthresh when restarting association
[BRIDGE]: Fix fdb RCU race
[NET]: Fix fib_rules dump race
[XFRM]: ipsecv6 needs a space when printing audit record.
[X25] x25_forward_call(): fix NULL dereferences
[SCTP]: Reset some transport and association variables on restart
[SCTP]: Increment error counters on user requested HBs.
[SCTP]: Clean up stale data during association restart
[IrDA]: Calling ppp_unregister_channel() from process context
[IrDA]: irttp_dup spin_lock initialisation
[IrDA]: Delay needed when uploading firmware chunks
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The packet length checks in ipoib are broken: we add 4 bytes (IPoIB
encapsulation header) when sending a packet, not 20 bytes (hardware
address length) to each packet. Therefore, if connected mode is
enabled so that the interface MTU is larger than the multicast MTU,
IPoIB may end up trying to send too-long multicast packets. For
example, multicast is broken if a message of size 2048 bytes is sent
on an interface with UD MTU 2048, because 2048 is bigger than the real
limit of 2044 but the code tests against the wrong limit of 2060.
This patch fixes <https://bugs.openfabrics.org/show_bug.cgi?id=418>,
submitted by Scott Weitzenkamp <sweitzen@cisco.com>.
Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The connected mode code added the possibility that an neigh struct
gets freed in the list_for_each_entry() loop in path_rec_completion(),
which causes a use-after-free. Fix this by changing to the _safe
variant of the list walking macro.
This was spotted by the Coverity checker (CID 1567).
Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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eHCA scaling code must not depend on register_cpu_notifier() if
CONFIG_HOTPLUG_CPU is not set, so put all related code into #ifdefs.
Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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This fixes kernel.org bug 8003.
Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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There's a race between ipoib_mcast_leave() and ipoib_mcast_join_finish()
where we can try to detach from a multicast group before we've
attached to it. Fix this by reordering the code in ipoib_mcast_leave
to free the multicast group first, which waits for the multicast
callback thread (which calls ipoib_mcast_join_finish()) to complete
before detaching from the group.
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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The sense of the time_after_eq() test in ipoib_cm_stale_task() is
reversed so that only non-stale connections are reaped. Fix this by
changing to time_before_eq().
Noticed by Pradeep Satyanarayana <pradeep@us.ibm.com>.
Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
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Check if workqueue creation failed. Further usage of NULL pointed
workqueue is not good I guess ;)
Signed-off-by: Cyrill V. Gorcunov <gorcunov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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Restore the original host configuration on driver unload and on
suspend. In particular this returns the SMBus master in I2C mode if it
was originally in I2C mode, which should help with suspend/resume if
the BIOS expects to find the SMBus master in I2C mode.
This fixes bug #6449 (for real this time.)
http://bugzilla.kernel.org/show_bug.cgi?id=6449
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Tommi Kyntola <tommi.kyntola@ray.fi>
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I missed one cleanup in my previous patch.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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With 42101001.sb firmwares, we need a 10 ms delay between firmware chunks
upload on irda-usb.
Patch from Nigel Williams <nigelw@elder-gods.net>
Signed-off-by: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: new Novatel device ids for option driver
USB: berry_charge: correct dbg string for second magic command
usblp: quirk flag and device entry for Seiko Epson M129C printer
airprime: USB ID for Novatel EV620 mini PCI-E card
USB: necessary update for mos7720 driver
USB: RAZR v3i unusual_devs
USB: two more device ids for dm9601 usbnet driver
USB: fix usb-serial regression
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master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
pata_ixp4xx_cf: fix interrupt
pata_ixp4xx_cf: fix oops on detach
libata: kernel-doc fix
sata_inic162x: kill double region requests
drivers/ata/Kconfig: PATA_SCC depends on wrong platform
sata_sil24: Add Adaptec 1220SA PCI ID
libata: don't whine if ->prereset() returns -ENOENT
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* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
[S390] zcrypt: fix possible race when unloading zcrypt driver modules
[S390] zcrypt: fix possible dead lock in AP bus module
[S390] Wire up sys_utimes.
[S390] reboot from and dump to SCSI under z/VM fails.
[S390] Wire up compat_sys_epoll_pwait.
[S390] strlcpy is smart enough
[S390] memory detection: fix off by one bug.
[S390] cio: qdio slsb setup
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This moves all of the Novatel device ids to the option driver, where
they belong.
Thanks to Novatel for providing a list of all supported devices.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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I was testing the berry_charge module with my Blackberry 8700c and had
great success, thanks. Looking at the code for my own learning I noticed
the following cut and paste error... just a nit.
Signed-off-by: Ken L Johnson <ken@novell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch (as872) adds a device table entry and a new quirk flag to
the usblp driver for the Seiko Epson Receipt printer. This printer
returns Vendor-Specific values for bInterfaceClass and
bInterfaceSubClass, but the bInterfaceProtocol value is valid and it
works with usblp. The new quirks flag tells the driver to ignore the
Class and SubClass values in the interface descriptor.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Add an ID to recognise the Novatel EV620 wireless adapter.
http://www.novatelwireless.com/products/expedite/ev620.html
It looks like a mini PCI-Express adapter. The mPCIE connector includes USB
pins... the card shows up to the system as a USB device, and powers itself
from the PCI bus.
The card I have isn't activated yet, so I can't get a PPP session up yet, but
I have tested basic serial communication successfully in both 2.6.18 and
2.6.20 kernels, once the product ID was added. (the driver changed quite a
bit between the two revs.) In both drivers, it responds to AT commands and
such.
Signed-off-by: Mark Glines <mark@glines.org>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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these devices have a shared interrupt endpoint. For serialcore to pass
an interrupt endpoint to a subdriver, the subdriver must define and
_export_ a fitting callback. The mos7720 driver failed to do so. This led
invariably to an oops upon open. This patch fixes it. The driver is useless
without it. Please try to get this into 2.6.21 and the stable kernels that
have this driver.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This adds an unusual_devs entry for the Motorola RAZR 3vi.
From: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Phil Dibowitz <phil@ipom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch for the linux-usb-devel tree adds two more
product ids to the dm9601 driver. These ids were found on
rebadged dm9601 devices in the wild.
Signed-off-by: Jon Dowland <jon@alcopop.org>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch reverts d9a7ecacac5f8274d2afce09aadcf37bdb42b93a since it
breaks drivers that need to access the ->port[] array in shutdown
(most of them).
Signed-Off: Jim Radford <radford@blackbean.org>
Acked-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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As per compact flash specifications, the default
irq mode upon cf insertion is pulse mode. this patch fixes
the driver to cope with that.
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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pata_ixp4xx_cf dodged dont-clear-drvdata-in-LLD bombing run as it used
platform_set_drvdata() instead of dev_set_drvdata(). This causes OOPS
on devres host release. Kill it.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Warning(linux-2621-rc3g7/drivers/ata/libata-core.c:842): No description found for parameter 'unknown'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Regions are requested twice during initialization causing the second
one to fail. This is regression introduced during iomap conversion.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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PATA_SCC depends on PPC_CELLEB. (not PPC_IBM_CELL_BLADE)
Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Akira Iguchi <akira2.iguchi@toshiba.co.jp>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Add Adaptec 1220SA (SIL3132) to devices claimed by sata_sil24
Patch generated against 2.6.20.2
Signed-off-by: Jamie Clark <jclark@metaparadigm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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->prereset() returns -ENOENT to tell libata that the port is empty and
reset sequencing should be stopped. This is not an error condition.
Update ata_eh_reset() such that it sets device classes to ATA_DEV_NONE
and return success in on -ENOENT. This makes spurious error message
go away.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Move try_module_get() call into spin protected block to prevent zcrypt
driver module unload while submitting a request to driver.
Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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AP bus module uses bus_for_each_dev() in software interrupt context to
poll for completed requests which might cause dead locks. Solution: use
private AP device list for polling in software interrupt context.
Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Make sure set_slsb problems are handled correctly in
qdio_do_qdio_fill_input() and qdio_do_qdio_fill_output.
Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6:
serial: Fix sh-sci break interrupt/sysrq handling.
sh: Fix bogus regs pointer in do_IRQ().
sh: Fix SH-3 cache entry_mask and way_size calculation.
sh: Convert struct ioctls to static defines.
sh: Define missing __NR_readahead.
sh: Fix PCI BAR address-space wraparound.
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These leaks were reported by: Catalin Marinas <catalin.marians@gmail.com>
and I have been able to very by inspection they are possible.
When converting tty_io.c to store pids as struct pid pointers instead
of pid_t values it appears I overlooked two places where we stop using
the pid value. The very obvious one is in do_tty_hangup, and the one
the less obvious one in __proc_set_tty.
When looking into the code __proc_set_tty only has pids that need to
be put because of failures of other parts of the code to properly
perform hangup processing. Fixing the leak here in __proc_set_tty
is easy and obviously correct so I am doing that first.
Fixing the places that should be performing hangup processing is much
less obviously correct. So those I'm aiming those patches at -mm.
for now, so the can age a while before they are merged.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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drivers/char/watchdog/machzwd.c: In function 'zf_ioctl':
drivers/char/watchdog/machzwd.c:327: warning: passing argument 1 of 'zf_ping' makes integer from pointer without a cast
Also some coding-style repairs.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@ftp.linux.org.uk>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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PAGE_MASK is an unsigned long, so using it to mask physical addresses on
i386 (which are 64-bit wide) leads to truncation. This can result in
page->private of unrelated memory pages being modified, with disasterous
results.
Fix by not using PAGE_MASK for physical addresses; instead calculate
the correct value directly from PAGE_SIZE. Also fix a similar BUG_ON().
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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KVM shadow page tables are always in pae mode, regardless of the guest
setting. This means that a guest pde (mapping 4MB of memory) is mapped
to two shadow pdes (mapping 2MB each).
When the guest writes to a pte or pde, we intercept the write and emulate it.
We also remove any shadowed mappings corresponding to the write. Since the
mmu did not account for the doubling in the number of pdes, it removed the
wrong entry, resulting in a mismatch between shadow page tables and guest
page tables, followed shortly by guest memory corruption.
This patch fixes the problem by detecting the special case of writing to
a non-pae pde and adjusting the address and number of shadow pdes zapped
accordingly.
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Avi Kivity <avi@qumranet.com>
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The vmx code currently treats the guest's sysenter support msrs as 32-bit
values, which breaks 32-bit compat mode userspace on 64-bit guests. Fix by
using the native word width of the machine.
Signed-off-by: Avi Kivity <avi@qumranet.com>
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Otherwise, the core module thinks the arch module is loaded, and won't
let you reload it after you've fixed the bug.
Signed-off-by: Avi Kivity <avi@qumranet.com>
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All modern distributions have been setting these options to "y" for ages.
(additionally "n" cases have been obsoleted for few years). Therefore use
DMA by default and remove CONFIG_IDEDMA_{ICS,PCI}_AUTO (also remove no longer
needed CONFIG_IDEDMA_AUTO). This fixes DMA support for rare configurations
where CONFIG_IDEDMA_{ICS,PCI}_AUTO was set to "n" but "hdparm -d 1" was used
to enable DMA support and which were forced to PIO mode by "ide: don't allow
DMA to be enabled if CONFIG_IDEDMA_{ICS,PCI}_AUTO=n" patch. There is no
functionality loss because "ide=nodma" kernel option is still available.
Cc: Patrick Horn <phrh@yahoo.com>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Russell King <rmk+lkml@arm.linux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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