11 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Tue, 17 Feb 2009 22:27:39 +0000]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, vm86: fix preemption bug
  x86, olpc: fix model detection without OFW
  x86, hpet: fix for LS21 + HPET = boot hang
  x86: CPA avoid repeated lazy mmu flush
  x86: warn if arch_flush_lazy_mmu_cpu is called in preemptible context
  x86/paravirt: make arch_flush_lazy_mmu/cpu disable preemption
  x86, pat: fix warn_on_once() while mapping 0-1MB range with /dev/mem
  x86/cpa: make sure cpa is safe to call in lazy mmu mode
  x86, ptrace, mm: fix double-free on race

11 years agoMerge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Tue, 17 Feb 2009 22:26:35 +0000]
Merge branch 'core-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  iommu: fix Intel IOMMU write-buffer flushing
  futex: fix reference leak

Trivial conflicts fixed manually in drivers/pci/intel-iommu.c

11 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Tue, 17 Feb 2009 22:23:49 +0000]
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/vsx: Fix VSX alignment handler for regs 32-63
  powerpc/ps3: Move ps3_mm_add_memory to device_initcall
  powerpc/mm: Fix numa reserve bootmem page selection
  powerpc/mm: Fix _PAGE_CHG_MASK to protect _PAGE_SPECIAL

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes...
Linus Torvalds [Tue, 17 Feb 2009 22:23:35 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/jbarnes/pci-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  PCI: Documentation: fix minor PCIe HOWTO thinko
  PCI: fix missing kernel-doc and typos
  PCI: fix struct pci_platform_pm_ops kernel-doc
  PCI: fix rom.c kernel-doc warning
  PCI/MSI: fix msi_mask() shift fix

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Linus Torvalds [Tue, 17 Feb 2009 22:22:59 +0000]
Merge git://git./linux/kernel/git/herbert/crypto-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: lrw - Fix big endian support

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
Linus Torvalds [Tue, 17 Feb 2009 22:19:14 +0000]
Merge git://git./linux/kernel/git/mason/btrfs-unstable

* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
  Btrfs: hold trans_mutex when using btrfs_record_root_in_trans
  Btrfs: make a lockdep class for the extent buffer locks
  Btrfs: fs/btrfs/volumes.c: remove useless kzalloc
  Btrfs: remove unused code in split_state()
  Btrfs: remove btrfs_init_path
  Btrfs: balance_level checks !child after access
  Btrfs: Avoid using __GFP_HIGHMEM with slab allocator
  Btrfs: don't clean old snapshots on sync(1)
  Btrfs: use larger metadata clusters in ssd mode
  Btrfs: process mount options on mount -o remount,
  Btrfs: make sure all pending extent operations are complete

11 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
Linus Torvalds [Tue, 17 Feb 2009 22:16:02 +0000]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  sata_nv: give up hardreset on nf2
  libata-sff: fix 32-bit PIO ATAPI regression

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes
Linus Torvalds [Tue, 17 Feb 2009 22:15:23 +0000]
Merge git://git./linux/kernel/git/sam/kbuild-fixes

* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
  kbuild: create the source symlink earlier in the objdir
  scripts: add x86 64 bit support to the markup_oops.pl script
  scripts: add x86 register parser to markup_oops.pl
  kbuild: add sys_* entries for syscalls in tags
  kbuild: fix tags generation of config symbols
  bootgraph: fix for use with dot symbols
  kbuild: add vmlinux to kernel rpm
  kbuild,setlocalversion: shorten the make time when using svn

11 years agoMerge branch 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6
Linus Torvalds [Tue, 17 Feb 2009 22:14:15 +0000]
Merge branch 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6

* 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
  MAINTAINERS: Switch hdaps to Frank Seidel
  hwmon: Fix ACPI resource check error handling
  hwmon: (f71882fg) Hide misleading error message

11 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Tue, 17 Feb 2009 22:09:03 +0000]
Merge branch 'for_linus' of git://git./linux/kernel/git/mchehab/linux-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
  V4L/DVB (10626): ivtv: fix regression in get sliced vbi format
  V4L/DVB (10625): ivtv: fix decoder crash regression
  V4L/DVB (10619): gspca - main: Destroy the URBs at disconnection time.
  V4L/DVB (10572): Revert commit dda06a8e4610757def753ee3a541a0b1a1feb36b
  V4L/DVB (10533): fix LED status output
  V4L/DVB (10532): Correction of Stereo detection/setting and signal strength indication
  V4L/DVB (10527): tuner: fix TUV1236D analog/digital setup
  V4L/DVB (10516a): zoran: Update MAINTAINERS entry

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Linus Torvalds [Tue, 17 Feb 2009 22:08:26 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: fix bus endianity in file2alias
  HID: move tmff and zpff devices from ignore_list to blacklist
  HID: unlock properly on error paths in hidraw_ioctl()
  HID: blacklist Powercom USB UPS

11 years agoMerge branch 'for-linus' of git://git.o-hand.com/linux-mfd
Linus Torvalds [Tue, 17 Feb 2009 22:08:03 +0000]
Merge branch 'for-linus' of git://git.o-hand.com/linux-mfd

* 'for-linus' of git://git.o-hand.com/linux-mfd:
  mfd: Fix sm501_register_gpio section mismatch
  mfd: fix sm501 section mismatches
  mfd: terminate pcf50633 i2c_device_id list
  mfd: Ensure all WM8350 IRQs are masked at startup
  mfd: fix htc-egpio iomem resource handling using resource_size
  mfd: Fix TWL4030 build on some ARM variants
  mfd: wm8350 tries reaches -1
  mfd: Mark WM835x USB_SLV_500MA bit as accessible
  mfd: Improve diagnostics for WM8350 ID register probe
  mfd: Initialise WM8350 interrupts earlier
  mfd: Fix egpio kzalloc return test

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
Linus Torvalds [Tue, 17 Feb 2009 22:07:18 +0000]
Merge git://git./linux/kernel/git/wim/linux-2.6-watchdog

* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  [WATCHDOG] iTCO_wdt: fix SMI_EN regression 2

11 years agoMerge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb
Linus Torvalds [Tue, 17 Feb 2009 22:05:59 +0000]
Merge branch 'for-upstream' of git://git./linux/kernel/git/dvrabel/uwb

* 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb:
  wusb: whci-hcd: always lock whc->lock with interrupts disabled

11 years agoFRV: __pte_to_swp_entry doesn't expand correctly
Roel Kluin [Mon, 16 Feb 2009 12:49:16 +0000]
FRV: __pte_to_swp_entry doesn't expand correctly

The macro doesn't expand correctly when its parameter isn't 'pte'.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Linus Torvalds [Tue, 17 Feb 2009 22:05:05 +0000]
Merge branch 'for_linus' of git://git./linux/kernel/git/tytso/ext4

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: Fix NULL dereference in ext4_ext_migrate()'s error handling
  ext4: Implement range_cyclic in ext4_da_writepages instead of write_cache_pages
  ext4: Initialize preallocation list_head's properly
  ext4: Fix lockdep warning
  ext4: Fix to read empty directory blocks correctly in 64k
  jbd2: Avoid possible NULL dereference in jbd2_journal_begin_ordered_truncate()
  Revert "ext4: wait on all pending commits in ext4_sync_fs()"
  jbd2: Fix return value of jbd2_journal_start_commit()

11 years agoMerge branch 'kvm-updates/2.6.29' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Tue, 17 Feb 2009 22:04:32 +0000]
Merge branch 'kvm-updates/2.6.29' of git://git./virt/kvm/kvm

* 'kvm-updates/2.6.29' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: VMX: Flush volatile msrs before emulating rdmsr
  KVM: Fix assigned devices circular locking dependency
  KVM: x86: fix LAPIC pending count calculation
  KVM: Fix INTx for device assignment
  KVM: MMU: Map device MMIO as UC in EPT
  KVM: x86: disable kvmclock on non constant TSC hosts
  KVM: PIT: fix i8254 pending count read
  KVM: Fix racy in kvm_free_assigned_irq
  KVM: Add kvm_arch_sync_events to sync with asynchronize events
  KVM: mmu_notifiers release method
  KVM: Avoid using CONFIG_ in userspace visible headers
  KVM: ia64: fix fp fault/trap handler

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
Linus Torvalds [Tue, 17 Feb 2009 22:04:00 +0000]
Merge git://git./linux/kernel/git/rusty/linux-2.6-for-linus

* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
  cpumask: Use cpu_*_mask accessors code: alpha
  cpumask: fix powernow-k8: partial revert of 2fdf66b491ac706657946442789ec644cc317e1a

11 years agoFix Intel IOMMU write-buffer flushing
David Woodhouse [Fri, 13 Feb 2009 23:18:03 +0000]
Fix Intel IOMMU write-buffer flushing

This is the cause of the DMA faults and disk corruption that people have
been seeing. Some chipsets neglect to report the RWBF "capability" --
the flag which says that we need to flush the chipset write-buffer when
changing the DMA page tables, to ensure that the change is visible to
the IOMMU.

Override that bit on the affected chipsets, and everything is happy
again.

Thanks to Chris and Bhavesh and others for helping to debug.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Tested-by: Chris Wright <chrisw@sous-sol.org>
Reviewed-by: Bhavesh Davda <bhavesh@vmware.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoFix incomplete __mntput locking
Al Viro [Mon, 16 Feb 2009 02:38:12 +0000]
Fix incomplete __mntput locking

Getting this wrong caused

WARNING: at fs/namespace.c:636 mntput_no_expire+0xac/0xf2()

due to optimistically checking cpu_writer->mnt outside the spinlock.

Here's what we really want:
 * we know that nobody will set cpu_writer->mnt to mnt from now on
 * all changes to that sucker are done under cpu_writer->lock
 * we want the laziest equivalent of
spin_lock(&cpu_writer->lock);
if (likely(cpu_writer->mnt != mnt)) {
spin_unlock(&cpu_writer->lock);
continue;
}
/* do stuff */
  that would make sure we won't miss earlier setting of ->mnt done by
  another CPU.

Anyway, for now we just move the spin_lock() earlier and move the test
into the properly locked region.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Reported-and-tested-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoMAINTAINERS: Switch hdaps to Frank Seidel
Frank Seidel [Tue, 17 Feb 2009 18:59:54 +0000]
MAINTAINERS: Switch hdaps to Frank Seidel

As Rovert Love doesn't any more seem to be realy active on hdaps
driver i'll happily take it over.

Signed-off-by: Frank Seidel <frank@f-seidel.de>
Cc: Robert Love <rlove@rlove.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

11 years agohwmon: Fix ACPI resource check error handling
Hans de Goede [Tue, 17 Feb 2009 18:59:54 +0000]
hwmon: Fix ACPI resource check error handling

This patch fixes a number of cases where things were not properly
cleaned up when acpi_check_resource_conflict() returned an error,
causing oopses such as the one reported here:
https://bugzilla.redhat.com/show_bug.cgi?id=483208

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

11 years agohwmon: (f71882fg) Hide misleading error message
Jean Delvare [Tue, 17 Feb 2009 18:59:54 +0000]
hwmon: (f71882fg) Hide misleading error message

If the F71882FG chip is at address 0x4e, then the probe at 0x2e will
fail with the following message in the logs:
f71882fg: Not a Fintek device

This is misleading because there is a Fintek device, just at a
different address. So I propose to degrade this message to a debug
message.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>

11 years agoV4L/DVB (10626): ivtv: fix regression in get sliced vbi format
Hans Verkuil [Mon, 16 Feb 2009 07:25:32 +0000]
V4L/DVB (10626): ivtv: fix regression in get sliced vbi format

The new v4l2_subdev_call used s_fmt instead of g_fmt.

Thanks-to: Andy Walls <awalls@radix.net>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

11 years agoV4L/DVB (10625): ivtv: fix decoder crash regression
Hans Verkuil [Sat, 14 Feb 2009 22:58:33 +0000]
V4L/DVB (10625): ivtv: fix decoder crash regression

The video_ioctl2 conversion of ivtv in kernel 2.6.27 introduced a bug
causing decoder commands to crash. The decoder commands should have been
handled from the video_ioctl2 default handler, ensuring correct mapping
of the argument between user and kernel space. Unfortunately they ended
up before the video_ioctl2 call, causing random crashes.

Thanks to hannes@linus.priv.at for testing and helping me track down the
cause!

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

11 years agoV4L/DVB (10619): gspca - main: Destroy the URBs at disconnection time.
Adam Baker [Wed, 4 Feb 2009 18:33:21 +0000]
V4L/DVB (10619): gspca - main: Destroy the URBs at disconnection time.

If a device using the gspca framework is unplugged while it is still streaming
then the call that is used to free the URBs that have been allocated occurs
after the pointer it uses becomes invalid at the end of gspca_disconnect.
Make another cleanup call in gspca_disconnect while the pointer is still
valid (multiple calls are OK as destroy_urbs checks for pointers already
being NULL.

Signed-off-by: Adam Baker <linux@baker-net.org.uk>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

11 years agoV4L/DVB (10572): Revert commit dda06a8e4610757def753ee3a541a0b1a1feb36b
Mauro Carvalho Chehab [Mon, 16 Feb 2009 18:27:44 +0000]
V4L/DVB (10572): Revert commit dda06a8e4610757def753ee3a541a0b1a1feb36b

On Mon, 02 Feb 2009, Hartmut wrote:

This change set is wrong. The affected functions cannot be called from
an interrupt context, because they may process large buffers. In this
case, interrupts are disabled for a long time. Functions, like
dvb_dmx_swfilter_packets(), could be called only from a tasklet.

This change set does hide some strong design bugs in dm1105.c and
au0828-dvb.c.

Please revert this change set and do fix the bugs in dm1105.c and
au0828-dvb.c (and other files).

On Sun, 15 Feb 2009, Oliver Endriss wrote:

This changeset _must_ be reverted! It breaks all kernels since 2.6.27
for applications which use DVB and require a low interrupt latency.

It is a very bad idea to call the demuxer to process data buffers with
interrupts disabled!

On Mon, 16 Feb 2009, Trent Piepho wrote:

I agree, this is bad.  The demuxer is far too much work to be done with
IRQs off.  IMHO, even doing it under a spin-lock is excessive.  It should
be a mutex.  Drivers should use a work-queue to feed the demuxer.

Thank you for testing this changeset and discovering the issues on it.

Cc: Trent Piepho <xyzzy@speakeasy.org>
Cc: Hartmut <e9hack@googlemail.com>
Cc: Oliver Endriss <o.endriss@gmx.de>
Cc: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

11 years agoV4L/DVB (10533): fix LED status output
Tobias Lorenz [Thu, 12 Feb 2009 17:56:19 +0000]
V4L/DVB (10533): fix LED status output

This patch closes one of my todos that was since long on my list.
Some people reported clicks and glitches in the audio stream,
correlated to the LED color changing cycle.
Thanks to Rick Bronson <rick@efn.org>.

Signed-off-by: Tobias Lorenz <tobias.lorenz@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

11 years agoV4L/DVB (10532): Correction of Stereo detection/setting and signal strength indication
Tobias Lorenz [Thu, 12 Feb 2009 17:56:10 +0000]
V4L/DVB (10532): Correction of Stereo detection/setting and signal strength indication

Thanks to Bob Ross <pigiron@gmx.com>
- correction of stereo detection/setting
- correction of signal strength indicator scaling

Signed-off-by: Tobias Lorenz <tobias.lorenz@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

11 years agoV4L/DVB (10527): tuner: fix TUV1236D analog/digital setup
Mauro Carvalho Chehab [Fri, 13 Feb 2009 11:24:34 +0000]
V4L/DVB (10527): tuner: fix TUV1236D analog/digital setup

As reported by David Engel <david@istwok.net>, ATSC115 doesn't work
fine with mythtv. This software opens both analog and dvb interfaces of
saa7134.

What happens is that some tuner commands are going to the wrong place,
as shown at the logs:

Feb 12 20:37:48 opus kernel: tuner-simple 1-0061: using tuner params #0 (ntsc)
Feb 12 20:37:48 opus kernel: tuner-simple 1-0061: freq = 67.25 (1076), range = 0, config = 0xce, cb = 0x01
Feb 12 20:37:48 opus kernel: tuner-simple 1-0061: Freq= 67.25 MHz, V_IF=45.75 MHz, Offset=0.00 MHz, div=1808
Feb 12 20:37:48 opus kernel: tuner 1-0061: tv freq set to 67.25
Feb 12 20:37:48 opus kernel: tuner-simple 1-000a: using tuner params #0 (ntsc)
Feb 12 20:37:48 opus kernel: tuner-simple 1-000a: freq = 67.25 (1076), range = 0, config = 0xce, cb = 0x01
Feb 12 20:37:48 opus kernel: tuner-simple 1-000a: Freq= 67.25 MHz, V_IF=45.75 MHz, Offset=0.00 MHz, div=1808
Feb 12 20:37:48 opus kernel: tuner-simple 1-000a: tv 0x07 0x10 0xce 0x01
Feb 12 20:37:48 opus kernel: tuner-simple 1-0061: tv 0x07 0x10 0xce 0x01

This happens due to a hack at TUV1236D analog setup, where it replaces
tuner address, at 0x61 for 0x0a, in order to save a few memory bytes.

The code assumes that nobody else would try to access the tuner during
that setup, but the point is that there's no lock to protect such
access. So, this opens the possibility of race conditions to happen.

Instead of hacking tuner address, this patch uses a temporary var with
the proper tuner value to be used during the setup. This should save
the issue, although we should consider to write some analog/digital
lock at saa7134 driver.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

11 years agoV4L/DVB (10516a): zoran: Update MAINTAINERS entry
Trent Piepho [Sat, 24 Jan 2009 23:52:41 +0000]
V4L/DVB (10516a): zoran: Update MAINTAINERS entry

Ronald Bultje hasn't been maintaining the zoran driver for some time.
Re-direct people to the mailing lists and web pages.

 MAINTAINERS |    6 +++---

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Acked-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Ronald S. Bultje <rbultje@ronald.bitfreak.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

11 years agoHID: fix bus endianity in file2alias
Jiri Slaby [Tue, 17 Feb 2009 11:38:36 +0000]
HID: fix bus endianity in file2alias

Fix endianness of bus member of hid_device_id in modpost.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Reported-by: Nye Liu <nyet@mrv.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

11 years agoHID: move tmff and zpff devices from ignore_list to blacklist
Anssi Hannula [Sat, 14 Feb 2009 09:45:05 +0000]
HID: move tmff and zpff devices from ignore_list to blacklist

The devices handled by hid-tmff and hid-zpff were added in the
hid_ignore_list[] instead of hid_blacklist[] in hid-core.c, thus
disabling them completely.

hid_ignore_list[] causes hid layer to skip the device, while
hid_blacklist[] indicates there is a specific driver in hid bus.

Re-enable the devices by moving them to the correct list.

Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

11 years agoHID: unlock properly on error paths in hidraw_ioctl()
Dan Carpenter [Tue, 3 Feb 2009 13:35:17 +0000]
HID: unlock properly on error paths in hidraw_ioctl()

We can't return immediately because lock_kernel() is held.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

11 years agoHID: blacklist Powercom USB UPS
Michael Tokarev [Sun, 1 Feb 2009 15:11:04 +0000]
HID: blacklist Powercom USB UPS

For quite some time users with various UPSes from Powercom were forced to play
magic with bind/unbind in /sys in order to be able to see the UPSes.  The
beasts does not work as HID devices, even if claims to do so.  cypress_m8
driver works with the devices instead, creating a normal serial port with which
normal UPS controlling software works.

The manufacturer confirmed the upcoming models with proper HID support will
have different device IDs.  In any way, it's wrong to have two completely
different modules for one device in kernel.

Blacklist the device in HID (add it to hid_ignore_list) to stop this mess,
finally.

Signed-off-By: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

11 years agocrypto: lrw - Fix big endian support
Herbert Xu [Tue, 17 Feb 2009 12:00:11 +0000]
crypto: lrw - Fix big endian support

It turns out that LRW has never worked properly on big endian.
This was never discussed because nobody actually used it that
way.  In fact, it was only discovered when Geert Uytterhoeven
loaded it through tcrypt which failed the test on it.

The fix is straightforward, on big endian the to find the nth
bit we should be grouping them by words instead of bytes.  So
setbit128_bbe should xor with 128 - BITS_PER_LONG instead of
128 - BITS_PER_BYTE == 0x78.

Tested-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

11 years agomfd: Fix sm501_register_gpio section mismatch
Rakib Mullick [Tue, 17 Feb 2009 08:21:52 +0000]
mfd: Fix sm501_register_gpio section mismatch

WARNING: drivers/mfd/built-in.o(.text+0x1706): Section mismatch in
reference from the function sm501_register_gpio() to the function
.devinit.text:sm501_gpio_register_chip()
The function sm501_register_gpio() references
the function __devinit sm501_gpio_register_chip().
This is often because sm501_register_gpio lacks a __devinit
annotation or the annotation of sm501_gpio_register_chip is wrong.

Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>

11 years agomfd: fix sm501 section mismatches
Alexey Dobriyan [Tue, 17 Feb 2009 08:10:19 +0000]
mfd: fix sm501 section mismatches

drv => driver renaming is needed otherwise modpost will spit false positives
re pointing to __devinit function from regular data.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>

11 years agomfd: terminate pcf50633 i2c_device_id list
Jean Delvare [Tue, 17 Feb 2009 08:07:02 +0000]
mfd: terminate pcf50633 i2c_device_id list

The i2c_device_id list is supposed to be zero-terminated.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Balaji Rao <balajirrao@openmoko.org>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

11 years agomfd: Ensure all WM8350 IRQs are masked at startup
Mark Brown [Fri, 6 Feb 2009 14:28:15 +0000]
mfd: Ensure all WM8350 IRQs are masked at startup

The IRQs might have been left enabled in hardware, generating spurious
IRQs before the drivers have registered.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>

11 years agomfd: fix htc-egpio iomem resource handling using resource_size
Philipp Zabel [Wed, 4 Feb 2009 20:27:48 +0000]
mfd: fix htc-egpio iomem resource handling using resource_size

Fixes an off-by-one error in the iomem resource mapping.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>

11 years agomfd: Fix TWL4030 build on some ARM variants
Mark Brown [Wed, 4 Feb 2009 20:26:07 +0000]
mfd: Fix TWL4030 build on some ARM variants

Many ARM platforms do not provide a mach/cpu.h so rather than guarding
the use of that header with CONFIG_ARM guard it with the guards used
when testing for the OMAP variants in the body of the code.

Signed-off-by: Mark Brown <broonie@sirena.org.uk>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>

11 years agomfd: wm8350 tries reaches -1
Roel Kluin [Wed, 4 Feb 2009 20:23:22 +0000]
mfd: wm8350 tries reaches -1

With a postfix decrement tries will reach -1 rather than 0,
so the warning will not be issued even upon timeout.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>

11 years agomfd: Mark WM835x USB_SLV_500MA bit as accessible
Mark Brown [Wed, 4 Feb 2009 20:10:58 +0000]
mfd: Mark WM835x USB_SLV_500MA bit as accessible

The code is out of sync with the silicon.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>

11 years agomfd: Improve diagnostics for WM8350 ID register probe
Mark Brown [Wed, 4 Feb 2009 20:09:38 +0000]
mfd: Improve diagnostics for WM8350 ID register probe

Check the return value of the device I/O functions when reading the
ID registers so we can provide a more useful diagnostic when we're
having trouble talking to the device.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>

11 years agomfd: Initialise WM8350 interrupts earlier
Mark Brown [Wed, 4 Feb 2009 19:49:52 +0000]
mfd: Initialise WM8350 interrupts earlier

Ensure that the interrupt handling is configured before we do platform
specific init. This allows the platform specific initialisation to
configure things which use interrupts safely.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>

11 years agomfd: Fix egpio kzalloc return test
Julia Lawall [Wed, 4 Feb 2009 19:44:01 +0000]
mfd: Fix egpio kzalloc return test

Since ei is already known to be non-NULL, I assume that what was intended
was to test the result of kzalloc.

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>

11 years agosata_nv: give up hardreset on nf2
Tejun Heo [Thu, 12 Feb 2009 01:34:32 +0000]
sata_nv: give up hardreset on nf2

Kernel bz#12176 reports that nf2 hardreset simply doesn't work.  Give
up.  Argh...

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Robert Hancock <hancockr@shaw.ca>
Reported-by: Saro <saro_v@hotmail.it>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

11 years agolibata-sff: fix 32-bit PIO ATAPI regression
Sergei Shtylyov [Sun, 15 Feb 2009 19:24:24 +0000]
libata-sff: fix 32-bit PIO ATAPI regression

Commit 871af1210f13966ab911ed2166e4ab2ce775b99d (libata: Add 32bit
PIO support) has caused all kinds of errors on the ATAPI devices, so
it has been empirically proven that one shouldn't try to read/write
an extra data word when a device is not expecting it already. "Don't
do it then"; however, still use a chance to do 32-bit read/write one
last time when there are exactly 3 trailing bytes.

Oh, and stop pointlessly swapping the bytes to and fro on big-endian
machines by using io*_rep() accessors which shouldn't byte-swap.

This patch should fix the kernel.org bug #12609.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

11 years agowusb: whci-hcd: always lock whc->lock with interrupts disabled
David Vrabel [Mon, 16 Feb 2009 14:37:12 +0000]
wusb: whci-hcd: always lock whc->lock with interrupts disabled

Always lock whc->lock with spin_lock_irq() or spin_lock_irqsave().

Signed-off-by: David Vrabel <david.vrabel@csr.com>

11 years agocpumask: Use cpu_*_mask accessors code: alpha
Rusty Russell [Mon, 16 Feb 2009 23:31:59 +0000]
cpumask: Use cpu_*_mask accessors code: alpha

Impact: use new API, fix SMP bug.

Use the new accessors rather than frobbing bits directly.

This also removes the bug introduced in ee0c468b (alpha: compile
fixes) which had Alpha setting bits on an on-stack cpumask, not the
cpu_online_map.

Cc: Richard Henderson <rth@twiddle.net>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Acked-by: Ingo Molnar <mingo@elte.hu>

11 years agocpumask: fix powernow-k8: partial revert of 2fdf66b491ac706657946442789ec644cc317e1a
Rusty Russell [Mon, 16 Feb 2009 23:31:58 +0000]
cpumask: fix powernow-k8: partial revert of 2fdf66b491ac706657946442789ec644cc317e1a

Impact: fix powernow-k8 when acpi=off (or other error).

There was a spurious change introduced into powernow-k8 in this patch:
so that we try to "restore" the cpus_allowed we never saved.  We revert
that file.

See lkml "[PATCH] x86/powernow: fix cpus_allowed brokage when
acpi=off" from Yinghai for the bug report.

Cc: Mike Travis <travis@sgi.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Ingo Molnar <mingo@elte.hu>

11 years agoext4: Fix NULL dereference in ext4_ext_migrate()'s error handling
Dan Carpenter [Mon, 16 Feb 2009 01:02:19 +0000]
ext4: Fix NULL dereference in ext4_ext_migrate()'s error handling

This was found through a code checker (http://repo.or.cz/w/smatch.git/).
It looks like you might be able to trigger the error by trying to migrate
a readonly file system.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

11 years agokbuild: create the source symlink earlier in the objdir
Andi Kleen [Sat, 10 Jan 2009 03:56:13 +0000]
kbuild: create the source symlink earlier in the objdir

It's useful to already have the source symlink in a
objdir when one just runs make *config. Then one
can do

mkdir obj-allyes
cd obj-allyes
make -C ../sourcedir O=$(pwd) allyesconfig
./source/scripts/config --disable debug_info
make CC=icecc -j18

without having to interrupt the make first just to
get the source symlink.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
[sam: deleted the other source symlink statement]
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

11 years agoscripts: add x86 64 bit support to the markup_oops.pl script
Arjan van de Ven [Sun, 15 Feb 2009 10:30:55 +0000]
scripts: add x86 64 bit support to the markup_oops.pl script

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

11 years agoscripts: add x86 register parser to markup_oops.pl
Arjan van de Ven [Sun, 15 Feb 2009 10:30:52 +0000]
scripts: add x86 register parser to markup_oops.pl

An oops dump also contains the register values.

This patch parses these for (32 bit) x86, and then annotates the
disassembly with these values; this helps in analysis of the oops by the
developer, for example, NULL pointer or other pointer bugs show up clearly
this way.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

11 years agokbuild: add sys_* entries for syscalls in tags
Rabin Vincent [Sun, 25 Jan 2009 13:09:12 +0000]
kbuild: add sys_* entries for syscalls in tags

Currently, it is no longer possible to use the tags file to jump to
system call function definitions with sys_foo, because the definitions
are obscured by use of the SYSCALL_DEFINE* macros.

This patch adds the appropriate option to ctags to make it see through
the macro.  Also, it adds the ENTRY() work already done for Exuberant
to Emacs too.

Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

11 years agokbuild: fix tags generation of config symbols
Alexey Dobriyan [Wed, 11 Feb 2009 21:24:09 +0000]
kbuild: fix tags generation of config symbols

commit 4f628248a578585472e19e4cba2c604643af8c6c aka "kbuild: reintroduce
ALLSOURCE_ARCHS support for tags/cscope" breaks tags generation for
Kconfig symbols.

Steps to reproduce:

make tags
vi -t PROC_FS

It should jump to 'config PROC_FS' line.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Tested-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

11 years agobootgraph: fix for use with dot symbols
Michael Neuling [Sun, 15 Feb 2009 09:20:30 +0000]
bootgraph: fix for use with dot symbols

powerpc has dot symbols, so the dmesg output looks like:

<4>[    0.327310] calling  .migration_init+0x0/0x9c @ 1
<4>[    0.327595] initcall .migration_init+0x0/0x9c returned 1 after 0 usecs

The below fixes bootgraph.pl so it handles this correctly.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

11 years agokbuild: add vmlinux to kernel rpm
Josh Hunt [Thu, 12 Feb 2009 05:10:57 +0000]
kbuild: add vmlinux to kernel rpm

We are building an automated system to test kernels weekly and need to
provide an rpm to our QA dept.  We would like to use the ability to create
kernel rpms already in the kernel's Makefile, but need the vmlinux file
included in the rpm for later debugging.

This patch adds a compressed vmlinux to the kernel rpm when doing a
make rpm-pkg or binrpm-pkg and upon install places the vmlinux file in /boot.

Signed-off-by: Josh Hunt <josh@scalex86.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

11 years agokbuild,setlocalversion: shorten the make time when using svn
Mike Frysinger [Thu, 5 Feb 2009 08:13:32 +0000]
kbuild,setlocalversion: shorten the make time when using svn

Don't bother doing `svn st` as it takes a retarded amount of time when
the source is cold

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

11 years agox86, vm86: fix preemption bug
Thomas Gleixner [Tue, 13 Jan 2009 22:36:34 +0000]
x86, vm86: fix preemption bug

Commit 3d2a71a596bd9c761c8487a2178e95f8a61da083 ("x86, traps: converge
do_debug handlers") changed the preemption disable logic of do_debug()
so vm86_handle_trap() is called with preemption disabled resulting in:

 BUG: sleeping function called from invalid context at include/linux/kernel.h:155
 in_atomic(): 1, irqs_disabled(): 0, pid: 3005, name: dosemu.bin
 Pid: 3005, comm: dosemu.bin Tainted: G        W  2.6.29-rc1 #51
 Call Trace:
  [<c050d669>] copy_to_user+0x33/0x108
  [<c04181f4>] save_v86_state+0x65/0x149
  [<c0418531>] handle_vm86_trap+0x20/0x8f
  [<c064e345>] do_debug+0x15b/0x1a4
  [<c064df1f>] debug_stack_correct+0x27/0x2c
  [<c040365b>] sysenter_do_call+0x12/0x2f
 BUG: scheduling while atomic: dosemu.bin/3005/0x10000001

Restore the original calling convention and reenable preemption before
calling handle_vm86_trap().

Reported-by: Michal Suchanek <hramrach@centrum.cz>
Cc: stable@kernel.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

11 years agoKVM: VMX: Flush volatile msrs before emulating rdmsr
Avi Kivity [Sun, 15 Feb 2009 00:32:07 +0000]
KVM: VMX: Flush volatile msrs before emulating rdmsr

Some msrs (notable MSR_KERNEL_GS_BASE) are held in the processor registers
and need to be flushed to the vcpu struture before they can be read.

This fixes cygwin longjmp() failure on Windows x64.

Signed-off-by: Avi Kivity <avi@redhat.com>

11 years agoKVM: Fix assigned devices circular locking dependency
Mark McLoughlin [Thu, 5 Feb 2009 18:23:46 +0000]
KVM: Fix assigned devices circular locking dependency

kvm->slots_lock is outer to kvm->lock, so take slots_lock
in kvm_vm_ioctl_assign_device() before taking kvm->lock,
rather than taking it in kvm_iommu_map_memslots().

Cc: stable@kernel.org
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Acked-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

11 years agoKVM: x86: fix LAPIC pending count calculation
Marcelo Tosatti [Tue, 10 Feb 2009 22:41:41 +0000]
KVM: x86: fix LAPIC pending count calculation

Simplify LAPIC TMCCT calculation by using hrtimer provided
function to query remaining time until expiration.

Fixes host hang with nested ESX.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>

11 years agoKVM: Fix INTx for device assignment
Sheng Yang [Tue, 6 Jan 2009 08:25:10 +0000]
KVM: Fix INTx for device assignment

Missing buckets and wrong parameter for free_irq()

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

11 years agoKVM: MMU: Map device MMIO as UC in EPT
Sheng Yang [Wed, 21 Jan 2009 08:52:16 +0000]
KVM: MMU: Map device MMIO as UC in EPT

Software are not allow to access device MMIO using cacheable memory type, the
patch limit MMIO region with UC and WC(guest can select WC using PAT and
PCD/PWT).

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

11 years agoKVM: x86: disable kvmclock on non constant TSC hosts
Marcelo Tosatti [Tue, 10 Feb 2009 22:59:45 +0000]
KVM: x86: disable kvmclock on non constant TSC hosts

This is better.

Currently, this code path is posing us big troubles,
and we won't have a decent patch in time. So, temporarily
disable it.

Signed-off-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

11 years agoKVM: PIT: fix i8254 pending count read
Marcelo Tosatti [Tue, 30 Dec 2008 17:55:05 +0000]
KVM: PIT: fix i8254 pending count read

count_load_time assignment is bogus: its supposed to contain what it
means, not the expiration time.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

11 years agoKVM: Fix racy in kvm_free_assigned_irq
Sheng Yang [Tue, 6 Jan 2009 02:03:03 +0000]
KVM: Fix racy in kvm_free_assigned_irq

In the past, kvm_get_kvm() and kvm_put_kvm() was called in assigned device irq
handler and interrupt_work, in order to prevent cancel_work_sync() in
kvm_free_assigned_irq got a illegal state when waiting for interrupt_work done.
But it's tricky and still got two problems:

1. A bug ignored two conditions that cancel_work_sync() would return true result
in a additional kvm_put_kvm().

2. If interrupt type is MSI, we would got a window between cancel_work_sync()
and free_irq(), which interrupt would be injected again...

This patch discard the reference count used for irq handler and interrupt_work,
and ensure the legal state by moving the free function at the very beginning of
kvm_destroy_vm(). And the patch fix the second bug by disable irq before
cancel_work_sync(), which may result in nested disable of irq but OK for we are
going to free it.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

11 years agoKVM: Add kvm_arch_sync_events to sync with asynchronize events
Sheng Yang [Tue, 6 Jan 2009 02:03:02 +0000]
KVM: Add kvm_arch_sync_events to sync with asynchronize events

kvm_arch_sync_events is introduced to quiet down all other events may happen
contemporary with VM destroy process, like IRQ handler and work struct for
assigned device.

For kvm_arch_sync_events is called at the very beginning of kvm_destroy_vm(), so
the state of KVM here is legal and can provide a environment to quiet down other
events.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

11 years agoKVM: mmu_notifiers release method
Marcelo Tosatti [Wed, 10 Dec 2008 20:23:26 +0000]
KVM: mmu_notifiers release method

The destructor for huge pages uses the backing inode for adjusting
hugetlbfs accounting.

Hugepage mappings are destroyed by exit_mmap, after
mmu_notifier_release, so there are no notifications through
unmap_hugepage_range at this point.

The hugetlbfs inode can be freed with pages backed by it referenced
by the shadow. When the shadow releases its reference, the huge page
destructor will access a now freed inode.

Implement the release operation for kvm mmu notifiers to release page
refs before the hugetlbfs inode is gone.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

11 years agoKVM: Avoid using CONFIG_ in userspace visible headers
Avi Kivity [Mon, 19 Jan 2009 12:57:52 +0000]
KVM: Avoid using CONFIG_ in userspace visible headers

Kconfig symbols are not available in userspace, and are not stripped by
headers-install.  Avoid their use by adding #defines in <asm/kvm.h> to
suit each architecture.

Signed-off-by: Avi Kivity <avi@redhat.com>

11 years agoKVM: ia64: fix fp fault/trap handler
Yang Zhang [Thu, 8 Jan 2009 07:13:31 +0000]
KVM: ia64: fix fp fault/trap handler

The floating-point registers f6-f11 is used by vmm and
saved in kvm-pt-regs, so should set the correct bit mask
and the pointer in fp_state, otherwise, fpswa may touch
vmm's fp registers instead of guests'.

In addition, for fp trap handling,  since the instruction
which leads to fp trap is completely executed, so can't
use retry machanism to re-execute it, because it may
pollute some registers.

Signed-off-by: Yang Zhang <yang.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

11 years agox86, olpc: fix model detection without OFW
Chris Ball [Sat, 14 Feb 2009 01:56:18 +0000]
x86, olpc: fix model detection without OFW

Impact: fix "garbled display, laptop is unusable" bug

Commit e51a1ac2dfca9ad869471e88f828281db7e810c0 ("x86, olpc: fix endian
bug in openfirmware workaround") breaks model comparison on OLPC; the value
0xc2 needs to be scaled up by olpc_board().

The pre-patch version was wrong, but accidentally worked anyway
(big-endian 0xc2 is big enough to satisfy all other board revisions,
but little endian 0xc2 is not).

Signed-off-by: Chris Ball <cjb@laptop.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Andres Salomon <dilinger@queued.net>
Cc: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

11 years agoiommu: fix Intel IOMMU write-buffer flushing
David Woodhouse [Fri, 13 Feb 2009 23:18:03 +0000]
iommu: fix Intel IOMMU write-buffer flushing

This is the cause of the DMA faults and disk corruption that people have
been seeing. Some chipsets neglect to report the RWBF "capability" --
the flag which says that we need to flush the chipset write-buffer when
changing the DMA page tables, to ensure that the change is visible to
the IOMMU.

Override that bit on the affected chipsets, and everything is happy
again.

Thanks to Chris and Bhavesh and others for helping to debug.

Should resolve:

  https://bugzilla.redhat.com/show_bug.cgi?id=479996
  http://bugzilla.kernel.org/show_bug.cgi?id=12578

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Tested-and-acked-by: Chris Wright <chrisw@sous-sol.org>
Reviewed-by: Bhavesh Davda <bhavesh@vmware.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

11 years agoext4: Implement range_cyclic in ext4_da_writepages instead of write_cache_pages
Aneesh Kumar K.V [Sat, 14 Feb 2009 15:42:58 +0000]
ext4: Implement range_cyclic in ext4_da_writepages instead of write_cache_pages

With delayed allocation we lock the page in write_cache_pages() and
try to build an in memory extent of contiguous blocks.  This is needed
so that we can get large contiguous blocks request.  If range_cyclic
mode is enabled, write_cache_pages() will loop back to the 0 index if
no I/O has been done yet, and try to start writing from the beginning
of the range.  That causes an attempt to take the page lock of lower
index page while holding the page lock of higher index page, which can
cause a dead lock with another writeback thread.

The solution is to implement the range_cyclic behavior in
ext4_da_writepages() instead.

http://bugzilla.kernel.org/show_bug.cgi?id=12579

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

11 years agoext4: Initialize preallocation list_head's properly
Aneesh Kumar K.V [Sat, 14 Feb 2009 15:31:16 +0000]
ext4: Initialize preallocation list_head's properly

When creating a new ext4_prealloc_space structure, we have to
initialize its list_head pointers before we add them to any prealloc
lists.  Otherwise, with list debug enabled, we will get list
corruption warnings.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

11 years ago[WATCHDOG] iTCO_wdt: fix SMI_EN regression 2
Wim Van Sebroeck [Wed, 28 Jan 2009 20:51:04 +0000]
[WATCHDOG] iTCO_wdt: fix SMI_EN regression 2

bugzilla: #12363
commit 7cd5b08be3c489df11b559fef210b81133764ad4 added a second regression:
some Dell's and Compaq's lockup on boot. So we revert most of the code.
The ICH9 reboot issue remains in place and will need some more fixing... :-(

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

11 years agoLinux 2.6.29-rc5
Linus Torvalds [Fri, 13 Feb 2009 23:31:30 +0000]
Linux 2.6.29-rc5

11 years agoPCI: Documentation: fix minor PCIe HOWTO thinko
Alex Chiang [Fri, 13 Feb 2009 19:03:17 +0000]
PCI: Documentation: fix minor PCIe HOWTO thinko

Update doc to correctly refer to replacing the pci_register_driver API,
and not the non-existent "pci_module_init" API.

Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

11 years agoPCI: fix missing kernel-doc and typos
Randy Dunlap [Sat, 10 Jan 2009 01:03:20 +0000]
PCI: fix missing kernel-doc and typos

Fix pci kernel-doc parameter missing notation, correct
function name, and fix typo:

Warning(linux-2.6.28-git10//drivers/pci/pci.c:1511): No description found for parameter 'exclusive'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

11 years agoPCI: fix struct pci_platform_pm_ops kernel-doc
Randy Dunlap [Sat, 10 Jan 2009 01:04:26 +0000]
PCI: fix struct pci_platform_pm_ops kernel-doc

Fix struct pci_platform_pm_ops kernel-doc notation.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

11 years agoPCI: fix rom.c kernel-doc warning
Randy Dunlap [Mon, 9 Feb 2009 17:31:20 +0000]
PCI: fix rom.c kernel-doc warning

Fix PCI kernel-doc warning:

Warning(linux-2.6.29-rc4-git1/drivers/pci/rom.c:67): No description found for parameter 'pdev'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

11 years agoPCI/MSI: fix msi_mask() shift fix
Matthew Wilcox [Mon, 9 Feb 2009 03:27:47 +0000]
PCI/MSI: fix msi_mask() shift fix

Hidetoshi Seto points out that commit
bffac3c593eba1f9da3efd0199e49ea6558a40ce has wrong values in the array.
Rather than correct the array, we can just use a bounds check and
perform the calculation specified in the comment.  As a bonus, this will
not run off the end of the array if the device specifies an illegal
value in the MSI capability.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Fri, 13 Feb 2009 16:19:11 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ASoC: Only register AC97 bus if it's not done already
  ALSA: hda - Add snd_hda_multi_out_dig_cleanup()
  ALSA: hda - Add missing terminator in slave dig-out array
  ALSA: hda - Change HP dv7 (103c:30f4) quirk from hp-m4 to hp-dv5 model
  ALSA: hda - Register (new) devices at reconfig
  ALSA: mtpav - Fix initial value for input hwport
  ALSA: hda - add id for Intel IbexPeak integrated HDMI codec
  ALSA: hda - compute checksum in HDMI audio infoframe
  ALSA: hda - enable HDMI audio pin out at module loading time
  ALSA: hda - allow multi-channel HDMI audio playback when ELD is not present
  ASoC: Update SDP3430 machine driver for snd_soc_card
  ALSA: hda - Add quirk for Asus z37e (1043:8284)
  sound: Remove OSSlib stuff from linux/soundcard.h
  ASoC: WM8990: Fix kcontrol's private value use in put callback
  ASoC: TLV320AIC3X: Fix kcontrol's private value use in put callback

11 years agoUser namespaces: Only put the userns when we unhash the uid
Serge E. Hallyn [Fri, 13 Feb 2009 14:04:21 +0000]
User namespaces: Only put the userns when we unhash the uid

uids in namespaces other than init don't get a sysfs entry.

For those in the init namespace, while we're waiting to remove
the sysfs entry for the uid the uid is still hashed, and
alloc_uid() may re-grab that uid without getting a new
reference to the user_ns, which we've already put in free_user
before scheduling remove_user_sysfs_dir().

Reported-and-tested-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Acked-by: David Howells <dhowells@redhat.com>
Tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoMerge branch 'fix/asoc' into for-linus
Takashi Iwai [Fri, 13 Feb 2009 14:06:04 +0000]
Merge branch 'fix/asoc' into for-linus

11 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Fri, 13 Feb 2009 14:05:59 +0000]
Merge branch 'fix/hda' into for-linus

11 years agoMerge branch 'fix/misc' into for-linus
Takashi Iwai [Fri, 13 Feb 2009 14:05:56 +0000]
Merge branch 'fix/misc' into for-linus

11 years agoMerge branch 'fix/oss-header-fix' into for-linus
Takashi Iwai [Fri, 13 Feb 2009 14:05:51 +0000]
Merge branch 'fix/oss-header-fix' into for-linus

11 years agoASoC: Only register AC97 bus if it's not done already
Mark Brown [Thu, 12 Feb 2009 19:33:19 +0000]
ASoC: Only register AC97 bus if it's not done already

ASoC supports both explicit codec drivers for AC97 devices and a simple
driver which uses the standard ALSA AC97 framework for codec support.
When used with the generic AC97 codec support that will provide the
ad hoc AC97 device for drivers like touchscreens to attach to so the
core shouldn't do so.

Reported-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

11 years agoALSA: hda - Add snd_hda_multi_out_dig_cleanup()
Takashi Iwai [Fri, 13 Feb 2009 10:32:28 +0000]
ALSA: hda - Add snd_hda_multi_out_dig_cleanup()

Added the helper function snd_hda_multi_out_dig_cleanup() to clean up
the digital outputs with multi setup.  This call is needed in cases
the codec supports multiple digital outputs as slaves.  Otherwise the
slave widgets aren't properly cleaned up.

For a single digital output (e.g. in patch_conexant.c), this call isn't
needed.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

11 years agoALSA: hda - Add missing terminator in slave dig-out array
Takashi Iwai [Fri, 13 Feb 2009 10:37:08 +0000]
ALSA: hda - Add missing terminator in slave dig-out array

Added the missing terminator for ad1989b_slave_dig_outs[].

Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

11 years agox86, hpet: fix for LS21 + HPET = boot hang
john stultz [Fri, 13 Feb 2009 02:48:53 +0000]
x86, hpet: fix for LS21 + HPET = boot hang

Between 2.6.23 and 2.6.24-rc1 a change was made that broke IBM LS21
systems that had the HPET enabled in the BIOS, resulting in boot hangs
for x86_64.

Specifically commit b8ce33590687888ebb900d09557b8807c4539022, which
merges the i386 and x86_64 HPET code.

Prior to this commit, when we setup the HPET timers in x86_64, we did
the following:

hpet_writel(HPET_TN_ENABLE | HPET_TN_PERIODIC | HPET_TN_SETVAL |
                    HPET_TN_32BIT, HPET_T0_CFG);

However after the i386/x86_64 HPET merge, we do the following:

cfg = hpet_readl(HPET_Tn_CFG(timer));
cfg |= HPET_TN_ENABLE | HPET_TN_PERIODIC |
HPET_TN_SETVAL | HPET_TN_32BIT;
hpet_writel(cfg, HPET_Tn_CFG(timer));

However on LS21s with HPET enabled in the BIOS, the HPET_T0_CFG register
boots with Level triggered interrupts (HPET_TN_LEVEL) enabled. This
causes the periodic interrupt to be not so periodic, and that results in
the boot time hang I reported earlier in the delay calibration.

My fix: Always disable HPET_TN_LEVEL when setting up periodic mode.

Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

11 years agoALSA: hda - Change HP dv7 (103c:30f4) quirk from hp-m4 to hp-dv5 model
Herton Ronaldo Krzesinski [Thu, 12 Feb 2009 19:27:27 +0000]
ALSA: hda - Change HP dv7 (103c:30f4) quirk from hp-m4 to hp-dv5 model

Change HP dv7 quirk: although reported to work with hp-m4 model
(https://bugzilla.novell.com/show_bug.cgi?id=445321), the original
report doesn't contain info about testing of internal microphone.

Recently I received a report about internal mic not working
(https://qa.mandriva.com/show_bug.cgi?id=44855#c193), this must be
related with the forced line in on pin 0x0e done with hp-m4 model. Thus
change the current quirk from STAC_HP_M4 to STAC_HP_DV5, later reported
to be fixed on a provided kernel with this change
(https://qa.mandriva.com/show_bug.cgi?id=44855#c196).

Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

11 years agopowerpc/vsx: Fix VSX alignment handler for regs 32-63
Michael Neuling [Thu, 12 Feb 2009 19:08:58 +0000]
powerpc/vsx: Fix VSX alignment handler for regs 32-63

Fix the VSX alignment handler for VSX registers > 32.  32-63 are stored
in the VMX part of the thread_struct not the FPR part.

Signed-off-by: Michael Neuling <mikey@neuling.org>
CC: stable@kernel.org (2.6.27 & .28 please)
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

11 years agopowerpc/ps3: Move ps3_mm_add_memory to device_initcall
Geoff Levand [Thu, 12 Feb 2009 12:36:16 +0000]
powerpc/ps3: Move ps3_mm_add_memory to device_initcall

Change the PS3 hotplug memory routine ps3_mm_add_memory() from
a core_initcall to a device_initcall.

core_initcall routines run before the powerpc topology_init()
startup routine, which is a subsys_initcall, resulting in
failure of ps3_mm_add_memory() when CONFIG_NUMA=y.  When
ps3_mm_add_memory() fails the system will boot with just the
128 MiB of boot memory

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

11 years agopowerpc/mm: Fix numa reserve bootmem page selection
Dave Hansen [Thu, 12 Feb 2009 12:36:04 +0000]
powerpc/mm: Fix numa reserve bootmem page selection

Fix the powerpc NUMA reserve bootmem page selection logic.

commit 8f64e1f2d1e09267ac926e15090fd505c1c0cbcb (powerpc: Reserve
in bootmem lmb reserved regions that cross NUMA nodes) changed
the logic for how the powerpc LMB reserved regions were converted
to bootmen reserved regions.  As the folowing discussion reports,
the new logic was not correct.

mark_reserved_regions_for_nid() goes through each LMB on the
system that specifies a reserved area.  It searches for
active regions that intersect with that LMB and are on the
specified node.  It attempts to bootmem-reserve only the area
where the active region and the reserved LMB intersect.  We
can not reserve things on other nodes as they may not have
bootmem structures allocated, yet.

We base the size of the bootmem reservation on two possible
things.  Normally, we just make the reservation start and
stop exactly at the start and end of the LMB.

However, the LMB reservations are not aware of NUMA nodes and
on occasion a single LMB may cross into several adjacent
active regions.  Those may even be on different NUMA nodes
and will require separate calls to the bootmem reserve
functions.  So, the bootmem reservation must be trimmed to
fit inside the current active region.

That's all fine and dandy, but we trim the reservation
in a page-aligned fashion.  That's bad because we start the
reservation at a non-page-aligned address: physbase.

The reservation may only span 2 bytes, but that those bytes
may span two pfns and cause a reserve_size of 2*PAGE_SIZE.

Take the case where you reserve 0x2 bytes at 0x0fff and
where the active region ends at 0x1000.  You'll jump into
that if() statment, but node_ar.end_pfn=0x1 and
start_pfn=0x0.  You'll end up with a reserve_size=0x1000,
and then call

  reserve_bootmem_node(node, physbase=0xfff, size=0x1000);

0x1000 may not be on the same node as 0xfff.  Oops.

In almost all the vm code, end_<anything> is not inclusive.
If you have an end_pfn of 0x1234, page 0x1234 is not
included in the range.  Using PFN_UP instead of the
(>> >> PAGE_SHIFT) will make this consistent with the other VM
code.

We also need to do math for the reserved size with physbase
instead of start_pfn.  node_ar.end_pfn << PAGE_SHIFT is
*precisely* the end of the node.  However,
(start_pfn << PAGE_SHIFT) is *NOT* precisely the beginning
of the reserved area.  That is, of course, physbase.
If we don't use physbase here, the reserve_size can be
made too large.

From: Dave Hansen <dave@linux.vnet.ibm.com>
Tested-by: Geoff Levand <geoffrey.levand@am.sony.com>  Tested on PS3.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

11 years agopowerpc/mm: Fix _PAGE_CHG_MASK to protect _PAGE_SPECIAL
Philippe Gerum [Thu, 12 Feb 2009 12:18:46 +0000]
powerpc/mm: Fix _PAGE_CHG_MASK to protect _PAGE_SPECIAL

Fix _PAGE_CHG_MASK so that pte_modify() does not affect the _PAGE_SPECIAL bit.

Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>