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git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
hwmon: (k8temp) Bypass core swapping on single-core processors
hwmon: (i5k_amb) Fix sysfs attribute for lockdep
hwmon: (k10temp) Do not blacklist known working CPU models
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Commit a2e066bba2aad6583e3ff648bf28339d6c9f0898 introduced core
swapping for CPU models 64 and later. I recently had a report about
a Sempron 3200+, model 95, for which this patch broke temperature
reading. It happens that this is a single-core processor, so the
effect of the swapping was to read a temperature value for a core
that didn't exist, leading to an incorrect value (-49 degrees C.)
Disabling core swapping on singe-core processors should fix this.
Additional comment from Andreas:
The BKDG says
Thermal Sensor Core Select (ThermSenseCoreSel)-Bit 2. This bit
selects the CPU whose temperature is reported in the CurTemp
field. This bit only applies to dual core processors. For
single core processors CPU0 Thermal Sensor is always selected.
k8temp_probe() correctly detected that SEL_CORE can't be used on single
core CPU. Thus k8temp did never update the temperature values stored
in temp[1][x] and -49 degrees was reported. For single core CPUs we
must use the values read into temp[0][x].
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Rick Moritz <rhavin@gmx.net>
Acked-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: stable@kernel.org
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i5k_amb.ko uses dynamically allocated memory (by kmalloc) for
attributes passed to sysfs. So, sysfs_attr_init() should be called
for working happy with lockdep.
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org [2.6.34 only]
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When detecting AM2+ or AM3 socket with DDR2, only blacklist cores
which are known to exist in AM2+ format.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: stable@kernel.org
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* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
watchdog: at32ap700x_wdt: register misc device last in probe() function
watchdog: [PATCH 3/3] imx2_wdt: fix section mismatch
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This patch reworks the probe() function in the at32ap700x_wdt driver, this to
make sure the miscdev is properly initialized and the driver is ready to be
accessed.
Reported-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Signed-off-by: Wim Van sebroeck <wim@iguana.be>
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Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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* git://git.infradead.org/iommu-2.6:
intel-iommu: Force-disable IOMMU for iGFX on broken Cantiga revisions.
intel-iommu: Fix double lock in get_domain_for_dev()
intel-iommu: Fix reference by physical address in intel_iommu_attach_device()
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Certain revisions of this chipset appear to be broken. There is a shadow
GTT which mirrors the real GTT but contains pre-translated physical
addresses, for performance reasons. When a GTT update happens, the
translations are done once and the resulting physical addresses written
back to the shadow GTT.
Except sometimes, the physical address is actually written back to the
_real_ GTT, not the shadow GTT. Thus we start to see faults when that
physical address is fed through translation again.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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stanse found the following double lock.
In get_domain_for_dev:
spin_lock_irqsave(&device_domain_lock, flags);
domain_exit(domain);
domain_remove_dev_info(domain);
spin_lock_irqsave(&device_domain_lock, flags);
spin_unlock_irqrestore(&device_domain_lock, flags);
spin_unlock_irqrestore(&device_domain_lock, flags);
This happens when the domain is created by another CPU at the same time
as this function is creating one, and the other CPU wins the race to
attach it to the device in question, so we have to destroy our own
newly-created one.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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Commit a99c47a2 "intel-iommu: errors with smaller iommu widths" replace the
dmar_domain->pgd with the first entry of page table when iommu's supported
width is smaller than dmar_domain's. But it use physical address directly
for new dmar_domain->pgd...
This result in KVM oops with VT-d on some machines.
Reported-by: Allen Kay <allen.m.kay@intel.com>
Cc: Tom Lyon <pugs@cisco.com>
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
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* 'for-linus' of git://gitorious.org/linux-omap-dss2/linux:
OMAP: OMAPFB: fix rfbi.c compile error
OMAPFB: LCDC: change update_mode to DISABLED when going suspend
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The code in rfbi.c tried to get the omapdss platform_device via a static
member defined in dispc.c, leading to a compile error. The same
platform_device is available through rfbi-struct.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
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I was observing the following error messages on my OMAP1 based Amstrad Delta
board when first changing from text to graphics mode or vice versa after the
LCD display had been blanked:
omapfb omapfb: timeout waiting for FRAME DONE
with a followup error message while unblanking it back:
omapfb omapfb: resetting (status 0xffffffb2,reset count 1)
As a visible result, image pixels happened to be shifted by a few bits,
giving wrong colors.
Examining the code, I found that this problem occures when an OMAP1 internal
LCD controller is disabled from omap_lcdc_suspend() and then a subsequent
omap_lcdc_setup_plane() calls disable_controller() again. This potentially
error provoking behaviour is triggered by the lcdc.update_mode flag being kept
at OMAP_AUTO_UPDATE, regardless of the controller and panel being suspended.
This patch tries to correct the problem by replacing both omap_lcdc_suspend()
and omap_lcdc_resume() function bodies with single calls to
omap_lcdc_set_update_mode() with a respective OMAP_UPDATE_DISABLE or
OMAP_AUTO_UPDATE argument. As a result, exactly the same lower level
operations are performed, with addition of changing the lcdc.update_mode flag
to a value better suited for the controller state. This prevents any further
calls to disable_controller() from omap_lcdc_setup_plane() while the display
is suspended.
Created against linux-2.6.34-rc7.
Tested on Amstrad Delta.
Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
MAINTAINERS: change mailing list address for CIFS
cifs: remove bogus first_time check in NTLMv2 session setup code
cifs: don't call cifs_new_fileinfo unless cifs_open succeeds
cifs: don't ignore cifs_posix_open_inode_helper return value
cifs: clean up arguments to cifs_open_inode_helper
cifs: pass instantiated filp back after open call
cifs: move cifs_new_fileinfo call out of cifs_posix_open
cifs: implement drop_inode superblock op
cifs: don't attempt busy-file rename unless it's in same directory
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We're moving the mailing list to linux-cifs@vger.kernel.org.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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This bug appears to be the result of a cut-and-paste mistake from the
NTLMv1 code. The function to generate the MAC key was commented out, but
not the conditional above it. The conditional then ended up causing the
session setup key not to be copied to the buffer unless this was the
first session on the socket, and that made all but the first NTLMv2
session setup fail.
Fix this by removing the conditional and all of the commented clutter
that made it difficult to see.
Cc: Stable <stable@kernel.org>
Reported-by: Gunther Deschner <gdeschne@redhat.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
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It's currently possible for cifs_open to fail after it has already
called cifs_new_fileinfo. In that situation, the new fileinfo will be
leaked as the caller doesn't call fput. That in turn leads to a busy
inodes after umount problem since the fileinfo holds an extra inode
reference now. Shuffle cifs_open around a bit so that it only calls
cifs_new_fileinfo if it's going to succeed.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-and-Tested-by: Suresh Jayaraman <sjayaraman@suse.de>
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...and ensure that we propagate the error back to avoid any surprises.
Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de>
Reviewed-and-Tested-by: Jeff Layton <jlayton@redhat.com>
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...which takes a ton of unneeded arguments and does a lot more pointer
dereferencing than is really needed.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-and-Tested-by: Suresh Jayaraman <sjayaraman@suse.de>
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The current scheme of sticking open files on a list and assuming that
cifs_open will scoop them off of it is broken and leads to "Busy
inodes after umount..." errors at unmount time.
The problem is that there is no guarantee that cifs_open will always
be called after a ->lookup or ->create operation. If there are
permissions or other problems, then it's quite likely that it *won't*
be called.
Fix this by fully instantiating the filp whenever the file is created
and pass that filp back to the VFS. If there is a problem, the VFS
can clean up the references.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-and-Tested-by: Suresh Jayaraman <sjayaraman@suse.de>
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Having cifs_posix_open call cifs_new_fileinfo is problematic and
inconsistent with how "regular" opens work. It's also buggy as
cifs_reopen_file calls this function on a reconnect, which creates a new
struct cifsFileInfo that just gets leaked.
Push it out into the callers. This also allows us to get rid of the
"mnt" arg to cifs_posix_open.
Finally, in the event that a cifsFileInfo isn't or can't be created, we
always want to close the filehandle out on the server as the client
won't have a record of the filehandle and can't actually use it. Make
sure that CIFSSMBClose is called in those cases.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-and-Tested-by: Suresh Jayaraman <sjayaraman@suse.de>
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The standard behavior for drop_inode is to delete the inode when the
last reference to it is put and the nlink count goes to 0. This helps
keep inodes that are still considered "not deleted" in cache as long as
possible even when there aren't dentries attached to them.
When server inode numbers are disabled, it's not possible for cifs_iget
to ever match an existing inode (since inode numbers are generated via
iunique). In this situation, cifs can keep a lot of inodes in cache that
will never be used again.
Implement a drop_inode routine that deletes the inode if server inode
numbers are disabled on the mount. This helps keep the cifs inode
caches down to a more manageable size when server inode numbers are
disabled.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Busy-file renames don't actually work across directories, so we need
to limit this code to renames within the same dir.
This fixes the bug detailed here:
https://bugzilla.redhat.com/show_bug.cgi?id=591938
Signed-off-by: Jeff Layton <jlayton@redhat.com>
CC: Stable <stable@kernel.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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* 'merge' of git://git.secretlab.ca/git/linux-2.6:
powerpc/5200: fix lite5200 ethernet phy address
powerpc/5200: Fix build error in sound code.
powerpc/5200: fix oops during going to standby
powerpc/5200: add lite5200 onboard I2C eeprom and flash
maintainers: Add git trees for SPI and device tree
of: Drop properties with "/" in their name
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According to my schematics, on Lite5200 board ethernet phy uses address
0 (all ADDR lines are pulled down). With this change I can talk to
onboard phy (LXT971) and correctly use autonegotiation.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Compiling in the MPC5200 sound drivers results in the following build error:
sound/soc/fsl/mpc5200_psc_ac97.o: In function `to_psc_dma_stream':
mpc5200_psc_ac97.c:(.text+0x0): multiple definition of `to_psc_dma_stream'
sound/soc/fsl/mpc5200_dma.o:mpc5200_dma.c:(.text+0x0): first defined here
sound/soc/fsl/efika-audio-fabric.o: In function `to_psc_dma_stream':
efika-audio-fabric.c:(.text+0x0): multiple definition of `to_psc_dma_stream'
sound/soc/fsl/mpc5200_dma.o:mpc5200_dma.c:(.text+0x0): first defined here
make[3]: *** [sound/soc/fsl/built-in.o] Error 1
make[2]: *** [sound/soc/fsl] Error 2
make[1]: *** [sound/soc] Error 2
make: *** [sound] Error 2
This patch fixes it by declaring the inline function in the header file to
also be a static.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Jon Smirl <jonsmirl@gmail.com>
Tested-by: John Hilmar Linkhorst <John.Linkhorst@rwth-aachen.de>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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When going to standby mode mpc code maps the whole soc5200 node
to access warious MBAR registers. However as of_iomap uses 'reg'
property of device node, only small part of MBAR is getting mapped.
Thus pm code gets oops when trying to access high parts of MBAR.
As a way to overcome this, make mpc52xx_pm_prepare() explicitly
map whole MBAR (0xc0000).
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Add dts descriptions for onboard 256 byte I2C eeprom (pcf8582C-2)
and 16MB NOR flash (am29lv652d).
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
[grant.likely@secretlab.ca: added lite5200b eeprom and declared lite5200 gpios]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Some bogus firmwares include properties with "/" in their name. This
causes problems when creating the /proc/device-tree file system,
because the slash is taken to indicate a directory.
We don't care about those properties, and we don't want to encourage
them, so just throw them away when creating /proc/device-tree.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Tested-by: Christian Kujau <lists@nerdbynature.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha-2.6:
alpha: Fix de2104x driver failing to readout MAC address correctly
alpha: Detect Super IO chip, no IDE on Avanti, enable EPP19
alpha: fix pci_mmap_resource API breakage
alpha: fix __arch_hweight32 typo
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This patch fixes a missing read memory barrier that is needed for the
driver to readout the MAC address correctly from the on-board ROM.
Also it replaces the use of the deprecated functions readl()/writel().
Signed-off-by: Morten H. Larsen <m-larsen@post6.tele.dk>
Signed-off-by: Matt Turner <mattst88@gmail.com>
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This patch probes for the Super IO chip and reserves the IO range when
found. It avoids enabling the IDE interface on the Avanti family, since
none has IDE. It enables the Enhanced Parallel Port v1.9 feature.
Signed-off-by: Morten H. Larsen <m-larsen@post6.tele.dk>
Signed-off-by: Matt Turner <mattst88@gmail.com>
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Caused by 2c3c8bea608866d8bd9dcf92657d57fdcac011c5 which was clearly not
even compile tested.
Signed-off-by: Matt Turner <mattst88@gmail.com>
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Typo in 1527bc8b928dd1399c3d3467dd47d9ede210978a renamed hweight32 to
__arch_weight32.
Signed-off-by: Matt Turner <mattst88@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Fix mpic_resume on early G5 macs
powerpc: rtas_flash needs to use rtas_data_buf
powerpc: Unconditionally enabled irq stacks
powerpc/kexec: Wait for online/possible CPUs only.
powerpc: Disable CONFIG_SYSFS_DEPRECATED
powerpc/boot: Remove addRamdisk.c since it is now unused
powerpc: Move kdump default base address to 64MB on 64bit
powerpc: Remove dead CONFIG_HIGHPTE
powerpc/fsl-booke: Move loadcam_entry back to asm code to fix SMP ftrace
powerpc/fsl-booke: Fix InstructionTLBError execute permission check
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mpic_resume() on G5 macs blindly dereferences mpic->fixups, but
it may legitimately be NULL (as on PowerMac7,2). Add an explicit
check.
This fixes suspend-to-disk with one processor (maxcpus=1) for me.
Signed-off-by: Alastair Bridgewater <alastair.bridgewater@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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When trying to flash a machine via the update_flash command, Anton received the
following error:
Restarting system.
FLASH: kernel bug...flash list header addr above 4GB
The code in question has a comment that the flash list should be in
the kernel data and therefore under 4GB:
/* NOTE: the "first" block list is a global var with no data
* blocks in the kernel data segment. We do this because
* we want to ensure this block_list addr is under 4GB.
*/
Unfortunately the Kconfig option is marked tristate which means the variable
may not be in the kernel data and could be above 4GB.
Instead of relying on the data segment being below 4GB, use the static
data buffer allocated by the kernel for use by rtas. Since we don't
use the header struct directly anymore, convert it to a simple pointer.
Reported-By: Anton Blanchard <anton@samba.org>
Signed-Off-By: Milton Miller <miltonm@bga.com
Tested-By: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Irq stacks provide an essential protection from stack overflows through
external interrupts, at the cost of two additionals stacks per CPU.
Enable them unconditionally to simplify the kernel build and prevent
people from accidentally disabling them.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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kexec_perpare_cpus_wait() iterates i through NR_CPUS to check
paca[i].kexec_state of each to make sure they have quiesced.
However now we have dynamic PACA allocation, paca[NR_CPUS] is not necessarily
valid and we overrun the array; spurious "cpu is not possible, ignoring"
errors result. This patch iterates for_each_online_cpu so stays
within the bounds of paca[] -- and every CPU is now 'possible'.
Signed-off-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Acked-by: Grant Likely <grant.likely@secretlab.ca>
On 5 May 2010 21:33, "Anton Blanchard" <anton@samba.org> wrote:
CONFIG_SYSFS_DEPRECATED can cause issues with newer distros and should not
be required for any distro in the last 3 or 4 years, so disable it.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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It was used in the dim distant past for adding initrds to images
for legacy iSeries, but it's not even used for that now that we
have initramfs. So remove it.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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We are seeing boot fails on some System p machines when using the kdump
crashkernel= boot option. The default kdump base address is 32MB, so if we
reserve 256MB for kdump then we reserve all of the RMO except the first 32MB.
We really want kdump to reserve some memory in the RMO and most of it
elsewhere but that will require more significant changes. For now we can shift
the default base address to 64MB when CONFIG_PPC64 and CONFIG_RELOCATABLE are
set. This isn't quite correct since what we really care about is the kdump
kernel is relocatable, but we already make the assumption that base kernel
and kdump kernel have the same CONFIG_RELOCATABLE setting, eg:
#ifndef CONFIG_RELOCATABLE
if (crashk_res.start != KDUMP_KERNELBASE)
printk("Crash kernel location must be 0x%x\n",
KDUMP_KERNELBASE);
...
RTAS is instantiated towards the top of our RMO, so if we were to go any
higher we risk not having enough RMO memory for the kdump kernel on boxes
with a 128MB RMO.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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CONFIG_HIGHPTE doesn't exist in Kconfig, therefore removing all
references for it from the source code.
Signed-off-by: Christoph Egger <siccegge@cs.fau.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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When we build with ftrace enabled its possible that loadcam_entry would
have used the stack pointer (even though the code doesn't need it). We
call loadcam_entry in __secondary_start before the stack is setup. To
ensure that loadcam_entry doesn't use the stack pointer the easiest
solution is to just have it in asm code.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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In CONFIG_PTE_64BIT the PTE format has unique permission bits for user
and supervisor execute. However on !CONFIG_PTE_64BIT we overload the
supervisor bit to imply user execute with _PAGE_USER set. This allows
us to use the same permission check mask for user or supervisor code on
!CONFIG_PTE_64BIT.
However, on CONFIG_PTE_64BIT we map _PAGE_EXEC to _PAGE_BAP_UX so we
need a different permission mask based on the fault coming from a kernel
address or user space.
Without unique permission masks we see issues like the following with
modules:
Unable to handle kernel paging request for instruction fetch
Faulting instruction address: 0xf938d040
Oops: Kernel access of bad area, sig: 11 [#1]
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jin Qing <b24347@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
TPM: ReadPubEK output struct fix
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