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The bypassing of this test is a leftover from 2.4 vintage
kernels, and is no longer appropriate, or even used by KGDB.
Currently KGDB uses probe_kernel_write() for all access to
memory via the KGDB core, so it can simply be deleted.
This fixes CVE-2010-1446.
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Paul Mackerras <paulus@samba.org>
CC: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Wufei <fei.wu@windriver.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
* master.kernel.org:/home/rmk/linux-2.6-arm:
ARM: 6061/1: PL061 GPIO: Bug fix - setting gpio for HIGH_LEVEL interrupt is not working.
ARM: 5957/1: ARM: RealView SD/MMC Card detection and write-protect using GPIOLIB
ARM: 6030/1: KS8695: enable console
ARM: 6060/1: PL061 GPIO: Setting gpio val after changing direction to OUT.
ARM: 6059/1: PL061 GPIO: Changing *_irq_chip_data with *_irq_data for real irqs.
ARM: 6023/1: update bcmring_defconfig to latest version and fix build error
ARM: fix build error in arch/arm/kernel/process.c
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip:
x86: Disable large pages on CPUs with Atom erratum AAE44
x86-64: Clear a 64-bit FS/GS base on fork if selector is nonzero
x86, mrst: Conditionally register cpu hotplug notifier for apbt
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
x86/PCI: compute Address Space length rather than using _LEN
x86/PCI: never allocate PCI MMIO resources below BIOS_END
The switch to using GPIOLIB broke the sd/mmc card detection on the
RealView development boards if GPIO_PL061 was not selected.
This patch selects GPIO_PL061 if GPIOLIB is selected.
The sense of the return value from mmc_status has also changed
and is corrected.
Signed-off-by: Colin Tuckley <colin.tuckley@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ACPI _CRS Address Space Descriptors have _MIN, _MAX, and _LEN. Linux has
been computing Address Spaces as [_MIN to _MIN + _LEN - 1]. Based on the
tests in the bug reports below, Windows apparently uses [_MIN to _MAX].
Per spec (ACPI 4.0, Table 6-40), for _CRS fixed-size, fixed location
descriptors, "_LEN must be (_MAX - _MIN + 1)", and when that's true, it
doesn't matter which way we compute the end. But of course, there are
BIOSes that don't follow this rule, and we're better off if Linux handles
those exceptions the same way as Windows.
This patch makes Linux use [_MIN to _MAX], as Windows seems to do. This
effectively reverts d558b483d5 and 03db42adfe and replaces them with
simpler code.
https://bugzilla.kernel.org/show_bug.cgi?id=14337 (round)
https://bugzilla.kernel.org/show_bug.cgi?id=15480 (truncate)
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Refresh ps3_defconfig to latest kernel sources and change
these kernel config options:
o CONFIG_USB_ANNOUNCE_NEW_DEVICES: n -> y
o CONFIG_USB_EHCI_TT_NEWSCHED: n -> y
o CONFIG_CMDLINE_BOOL: n -> y
o CONFIG_CMDLINE: n -> ""
Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This ensures that the translations for unmapped IO mappings or
unmapped memory are properly removed from the MMU hash table
before such an unplug. Without this, the hypervisor refuses the
unplug operations due to those resources still being mapped by
the partition.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Firmware changed the way it represents memory and cpu affinity on POWER7.
Unfortunately the old method now caps the topology to work around issues
with legacy operating systems. For Linux to get the correct topology we
need to use the new form 1 affinity information.
We set the form 1 field in the client architecture, and if we see "1" in the
ibm,associativity-form property firmware supports form 1 affinity and
we should look at the first field in the ibm,associativity-reference-points
array. If not we use the second field as we always have.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This patch fixes a build failure introduced by 1d8393171 ("avr32: use
generic ptrace_resume code") which had the static keyword as a leftover.
arch/avr32/kernel/ptrace.c:32: error: static declaration of `user_enable_single_step' follows non-static declaration
include/linux/ptrace.h:268: error: previous declaration of `user_enable_single_step' was here
References:
[1]http://kisskb.ellerman.id.au/kisskb/buildresult/2448162/
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (39 commits)
omap: delete unused bootloader tag variables
omap: Devkit8000: Remove unused pins
omap: Devkit8000: Change position of init calls
omap: Devkit8000: Remove unnecessary include file
omap: Devkit8000: Fix typo in pin name
omap: Devkit8000: Add missing package selection
omap: Devkit8000: Fix typo in supplies
n8x0_defconfig: remove CONFIG_NILFS2_FS override
omap: board-sdp-flash.c: Fix typos in debug output
omap4: Fix McBSP4 base address
omap: rx51_defconfig: Remove CONFIG_SYSFS_DEPRECATED*=y options
omap: rx51_defconfig: Remove duplicate phonet
omap: fix a gpmc nand problem
AM3517: initialize i2c subsystem after mux subsystem
omap: remove one of the define of INT_34XX_BENCH_MPU_EMUL
omap: fix the compile error if CONFIG_MTD_NAND_OMAP2 is notenabled
OMAP4: Clocks: Change SPI Instance Names
omap: Devkit8000: Fix wrong usb port on Devkit8000
OMAP4: Fix for CONTROL register Base
OMAP4-HSMMC: FIX for MMC5 Controller IRQ Base
...
The following commit broke CONFIG_RELOCATABLE support on FSL Book-E
parts:
commit 549e8152de
Author: Paul Mackerras <paulus@samba.org>
Date: Sat Aug 30 11:43:47 2008 +1000
powerpc: Make the 64-bit kernel as a position-independent executable
The change to __va and __pa to use PAGE_OFFSET & MEMORY_START causes
problems on the Book-E parts because we don't know MEMORY_START until
after we parse the device tree. We need __va to work properly to even
parse the device tree so we have a chicken an egg. So go back to using
he other definition of __va/__pa on CONFIG_BOOKE and use the
PAGE_OFFSET/MEMORY_START version on "Classic" PPC64.
Also updated casts to handle phys_addr_t being a different size from
unsigned long (ie 36-bit physical on PPC32).
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
When we move a PCI device or assign resources to a device not configured
by the BIOS, we want to avoid the BIOS region below 1MB. Note that if the
BIOS places devices below 1MB, we leave them there.
See https://bugzilla.kernel.org/show_bug.cgi?id=15744
and https://bugzilla.kernel.org/show_bug.cgi?id=15841
Tested-by: Andy Isaacson <adi@hexapodia.org>
Tested-by: Andy Bailey <bailey@akamai.com>
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
PCI: Ensure we re-enable devices on resume
x86/PCI: parse additional host bridge window resource types
PCI: revert broken device warning
PCI aerdrv: use correct bit defines and add 2ms delay to aer_root_reset
x86/PCI: ignore Consumer/Producer bit in ACPI window descriptions
This is a standalone version of VMware Balloon driver. Ballooning is a
technique that allows hypervisor dynamically limit the amount of memory
available to the guest (with guest cooperation). In the overcommit
scenario, when hypervisor set detects that it needs to shuffle some
memory, it instructs the driver to allocate certain number of pages, and
the underlying memory gets returned to the hypervisor. Later hypervisor
may return memory to the guest by reattaching memory to the pageframes and
instructing the driver to "deflate" balloon.
We are submitting a standalone driver because KVM maintainer (Avi Kivity)
expressed opinion (rightly) that our transport does not fit well into
virtqueue paradigm and thus it does not make much sense to integrate with
virtio.
There were also some concerns whether current ballooning technique is the
right thing. If there appears a better framework to achieve this we are
prepared to evaluate and switch to using it, but in the meantime we'd like
to get this driver upstream.
We want to get the driver accepted in distributions so that users do not
have to deal with an out-of-tree module and many distributions have
"upstream first" requirement.
The driver has been shipping for a number of years and users running on
VMware platform will have it installed as part of VMware Tools even if it
will not come from a distribution, thus there should not be additional
risk in pulling the driver into mainline. The driver will only activate
if host is VMware so everyone else should not be affected at all.
Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Cc: Avi Kivity <avi@redhat.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Atom erratum AAE44/AAF40/AAG38/AAH41:
"If software clears the PS (page size) bit in a present PDE (page
directory entry), that will cause linear addresses mapped through this
PDE to use 4-KByte pages instead of using a large page after old TLB
entries are invalidated. Due to this erratum, if a code fetch uses
this PDE before the TLB entry for the large page is invalidated then
it may fetch from a different physical address than specified by
either the old large page translation or the new 4-KByte page
translation. This erratum may also cause speculative code fetches from
incorrect addresses."
[http://download.intel.com/design/processor/specupdt/319536.pdf]
Where as commit 211b3d03c7 seems to
workaround errata AAH41 (mixed 4K TLBs) it reduces the window of
opportunity for the bug to occur and does not totally remove it. This
patch disables mixed 4K/4MB page tables totally avoiding the page
splitting and not tripping this processor issue.
This is based on an original patch by Colin King.
Originally-by: Colin Ian King <colin.king@canonical.com>
Cc: Colin Ian King <colin.king@canonical.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
LKML-Reference: <1269271251-19775-1-git-send-email-colin.king@canonical.com>
Cc: <stable@kernel.org>
When we do a thread switch, we clear the outgoing FS/GS base if the
corresponding selector is nonzero. This is taken by __switch_to() as
an entry invariant; it does not verify that it is true on entry.
However, copy_thread() doesn't enforce this constraint, which can
result in inconsistent results after fork().
Make copy_thread() match the behavior of __switch_to().
Reported-and-tested-by: Samuel Thibault <samuel.thibault@inria.fr>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
LKML-Reference: <4BD1E061.8030605@zytor.com>
Cc: <stable@kernel.org>
They are not needed and add over 512 bytes to kernel data.
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Old code from original patch contains beagle board pins that are
not available on the Devkit8000.
Signed-off-by: Thomas Weber <weber@corscience.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Change position of calling serial and ethernet initialization.
Signed-off-by: Thomas Weber <weber@corscience.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Devkit8000 uses the CUS package for OMAP3530.
This patch adds missing package selection for CUS and enables
CONFIG_MUX.
Replace whitespace with tab in Kconfig.
Signed-off-by: Thomas Weber <weber@corscience.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
arch/arm/configs/n8x0_defconfig:1061:warning: override: reassigning to
symbol NILFS2_FS
Signed-off-by: Francisco Alecrim <francisco.alecrim@openbossa.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Corrected type of flash in output (OneNAND => NOR).
Removed whitespace after newline in output.
Removed double whitespace in output.
Signed-off-by: Thomas Weber <weber@corscience.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Modern udev will not work with the CONFIG_SYSFS_DEPRECATED*=y options and
it seems also that the Maemo release works without when testing with the
Maemo 2.6.28 kernel.
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Phonet is enabled by the commit bce54fed94
and this duplicate gives a warning when doing make rx51_defconfig.
Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
If gpmc_t isn't given, we don't need to set timing for gpmc, or it will cause
a Oops.
Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
The initialize of i2c subsystem will set pinmux, so it should be done
after the initialize of mux subsystem initialization.
Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
INT_34XX_BENCH_MPU_EMUL was defined twice, another is at Line 312.
Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
If CONFIG_MTD_NAND_OMAP2 is not enabled, there will be a compile error,
"gpmc_nand_init() is not defined". Add a inline noop function to fix it.
Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Change the name for the spi instances on omap44xx_clks to match
the names omap2 spi driver gives:
omap-mcspi.1 -> omap2_mcspi.1
omap-mcspi.2 -> omap2_mcspi.2
omap-mcspi.3 -> omap2_mcspi.3
omap-mcspi.4 -> omap2_mcspi.4
Signed-off-by: Abraham Arce <x0066660@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Disable the nonexistent ehci port on Devkit8000.
Signed-off-by: Thomas Weber <weber@corscience.de>
Acked-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This patch fixes the base address of CONTROL register on OMAP4430SDP.
The control base is used by peripherals like MMC1 for PBIAS configuration.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
IGEP v2 uses EHCI port 1 instead of EHCI port 2.
Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Fix warning: 'return' with a value, in function returning void
in n8x0_mmc_init. Also fix a search and replace typo.
Signed-off-by: Tony Lindgren <tony@atomide.com>
The value to check is 7 for V6 instead. The code has been
working as it falls through to 24xx code if the other checks
fail.
Signed-off-by: Tony Lindgren <tony@atomide.com>
The register DMA4_CDAC needs to be initialized to zero
before starting DMA transfer.
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Govindraj R <govindraj.raja@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Reported-by:S, Venkatraman <svenkatr@ti.com>
Signed-off-by: Manjunatha GK <manjugk@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Since IRQ_TYPE_EDGE_BOTH is defined as (IRQ_TYPE_EDGE_FALLING |
IRQ_TYPE_EDGE_RISING), testing against it with a bitwise AND also matches
both single-edge cases in addition to the intended both edges case. Fix it,
replacing with a more accurate expression.
Created and tested againts linux-2.6.34-rc3.
Applicable to 2.6.33-stable as well.
Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tony Lindgren <tony@atomide.com>
When the 32k sync timer is used for sched_clock(), it should count
time from the kernel boot (clocksource init) instead of the last HW
reset. Otherwise printk.time values will jump suddenly during the boot:
[ 0.000000] calling omap2_clk_arch_init+0x0/0x138 @ 1
[ 0.000000] initcall omap2_clk_arch_init+0x0/0x138 returned -22 after 0 usecs
[ 0.000000] initcall omap2_clk_arch_init+0x0/0x138 returned with error code -22
[ 0.000000] calling omap_init_clocksource_32k+0x0/0x98 @ 1
[ 508.697937] initcall omap_init_clocksource_32k+0x0/0x98 returned 0 after 0 usecs
[ 508.697967] calling omap_init_devices+0x0/0x38 @ 1
[ 508.698425] initcall omap_init_devices+0x0/0x38 returned 0 after 0 usecs
This will confuse tools such as scripts/bootgraph.pl.
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This adds support for Memory24, Memory32, and Memory32Fixed descriptors in
PCI host bridge _CRS.
I experimentally determined that Windows (2008 R2) accepts these descriptors
and treats them as windows that are forwarded to the PCI bus, e.g., if
it finds any PCI devices with BARs outside the windows, it moves them into
the windows.
I don't know whether any machines actually use these descriptors in PCI
host bridge _CRS methods, but if any exist and they're new enough that we
automatically turn on "pci=use_crs", they will work with Windows but not
with Linux.
Here are the details: https://bugzilla.kernel.org/show_bug.cgi?id=15817
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Commit "timekeeping: Fix clock_gettime vsyscall time warp" (0696b711e)
introduced the new parameter "mult" to update_vsyscall(). This parameter
contains the internal NTP adjusted clock multiplier.
The s390x vdso did not use this adjusted multiplier. Instead, it used
the constant clock multiplier for gettimeofday() and clock_gettime()
variants. This may result in observable time warps as explained in
commit 0696b711e.
Make the NTP adjusted clock multiplier available to the s390x vdso
implementation and use it for time calculations.
Cc: <stable@kernel.org>
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
