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15 years agopci-acpi: Cleanup _OSC evaluation code
Taku Izumi [Thu, 20 Nov 2008 06:22:39 +0000 (15:22 +0900)]
pci-acpi: Cleanup _OSC evaluation code

Cleanup _OSC evaluation code.  Some whitespace changes and a few other
minor cleanups.

Reviewed-by: Andrew Patterson <andrew.patterson@hp.com>
Tested-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoPCI/ACPI: Remove unnecessary _OSC evaluation for control request
Taku Izumi [Thu, 20 Nov 2008 06:22:37 +0000 (15:22 +0900)]
PCI/ACPI: Remove unnecessary _OSC evaluation for control request

If a control had already been granted, we don't need to re-evaluate
_OSC for it because firmware may not reject control of any feature it
has previously granted control to.

Reviewed-by: Andrew Patterson <andrew.patterson@hp.com>
Tested-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoPCI: revert additional _OSC evaluation
Taku Izumi [Thu, 20 Nov 2008 06:22:32 +0000 (15:22 +0900)]
PCI: revert additional _OSC evaluation

Reverts adf411b819adc9fa96e9b3e638c7480d5e71d270.

The commit adf411b819adc9fa96e9b3e638c7480d5e71d270 was based on the
improper assumption that queried result was not updated when _OSC
support field was changed. But, in fact, queried result is updated
whenever _OSC support field was changed through __acpi_query_osc().
As a result, the commit adf411b819adc9fa96e9b3e638c7480d5e71d270 only
introduced unnecessary additional _OSC evaluation...

Tested-by: Andrew Patterson <andrew.patterson@hp.com>
Reviewed-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agodrivers/pci/hotplug: Add missing pci_dev_get
Julia Lawall [Sun, 23 Nov 2008 08:08:28 +0000 (09:08 +0100)]
drivers/pci/hotplug: Add missing pci_dev_get

pci_get_slot does a pci_dev_get, so pci_dev_put needs to be called in an
error case.

An alterative would be to move the test_and_set_bit before the call to
pci_get_slot.

The problem was fixed using the following semantic patch.
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
local idexpression *n;
statement S1,S2;
expression E,E1;
expression *ptr != NULL;
type T,T1;
@@

(
if (!(n = pci_get_slot(...))) S1
|
n = pci_get_slot(...)
)
<... when != pci_dev_put(n)
    when != if (...) { <+... pci_dev_put(n) ...+> }
    when != true !n  || ...
    when != n = (T)E
    when != E = n
if (!n || ...) S2
...>
(
  return \(0\|<+...n...+>\|ptr\);
|
+ pci_dev_put(n);
return ...;
|
pci_dev_put(n);
|
n = (T1)E1
|
E1 = n
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoresource: allow MMIO exclusivity for device drivers
Arjan van de Ven [Thu, 23 Oct 2008 02:55:31 +0000 (19:55 -0700)]
resource: allow MMIO exclusivity for device drivers

Device drivers that use pci_request_regions() (and similar APIs) have a
reasonable expectation that they are the only ones accessing their device.
As part of the e1000e hunt, we were afraid that some userland (X or some
bootsplash stuff) was mapping the MMIO region that the driver thought it
had exclusively via /dev/mem or via various sysfs resource mappings.

This patch adds the option for device drivers to cause their reserved
regions to the "banned from /dev/mem use" list, so now both kernel memory
and device-exclusive MMIO regions are banned.
NOTE: This is only active when CONFIG_STRICT_DEVMEM is set.

In addition to the config option, a kernel parameter iomem=relaxed is
provided for the cases where developers want to diagnose, in the field,
drivers issues from userspace.

Reviewed-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoACPI/PCI: remove obsolete _OSC capability support functions
Andrew Patterson [Mon, 10 Nov 2008 22:31:10 +0000 (15:31 -0700)]
ACPI/PCI: remove obsolete _OSC capability support functions

The acpi_query_osc, __pci_osc_support_set, pci_osc_support_set, and
pcie_osc_support_set functions have been obsoleted in favor of setting
these capabilities during root bridge discovery with
pci_acpi_osc_support.  There are no longer any callers of these
functions, so remove them.

Signed-off-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoACPI/PCI: PCI MSI _OSC support capabilities called when root bridge added
Andrew Patterson [Mon, 10 Nov 2008 22:31:05 +0000 (15:31 -0700)]
ACPI/PCI: PCI MSI _OSC support capabilities called when root bridge added

The _OSC capability OSC_MSI_SUPPORT is set when the root bridge is added
with pci_acpi_osc_support(), so we no longer need to do it in the PCI
MSI driver.  Also adds the function pci_msi_enabled, which returns true
if pci=nomsi is not on the kernel command-line.

Signed-off-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoACPI/PCI: PCIe AER _OSC support capabilities called when root bridge added
Andrew Patterson [Mon, 10 Nov 2008 22:31:00 +0000 (15:31 -0700)]
ACPI/PCI: PCIe AER _OSC support capabilities called when root bridge added

The _OSC capability OSC_EXT_PCI_CONFIG_SUPPORT is set when the root
bridge is added with pci_acpi_osc_support(), so we no longer need to do
it in the PCIe AER driver.

Signed-off-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoACPI/PCI: PCIe ASPM _OSC support capabilities called when root bridge added
Andrew Patterson [Mon, 10 Nov 2008 22:30:55 +0000 (15:30 -0700)]
ACPI/PCI: PCIe ASPM _OSC support capabilities called when root bridge added

The _OSC capabilities OSC_ACTIVE_STATE_PWR_SUPPORT and
OSC_CLOCK_PWR_CAPABILITY_SUPPORT are set when the root bridge is added
with pci_acpi_osc_support(), so we no longer need to do it in the ASPM
driver.  Also add the function pcie_aspm_enabled, which returns true if
pcie_aspm=off is not on the kernel command-line.

Signed-off-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoACPI/PCI: PCI extended config _OSC support called when root bridge added
Andrew Patterson [Mon, 10 Nov 2008 22:30:50 +0000 (15:30 -0700)]
ACPI/PCI: PCI extended config _OSC support called when root bridge added

The _OSC capability OSC_EXT_PCI_CONFIG_SUPPORT is set when the root
bridge is added with pci_acpi_osc_support() if we can access PCI
extended config space.

This adds the function pci_ext_cfg_avail which returns true if we can
access PCI extended config space (offset greater than 0xff). It
currently only returns false if arch=x86 and raw_pci_ext_ops is not set
(which might happen if pci=nommcfg is set on the kernel command-line).

Signed-off-by: Andrew Patterson <andrew.patterson@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoACPI/PCI: call _OSC support during root bridge discovery
Andrew Patterson [Mon, 10 Nov 2008 22:30:45 +0000 (15:30 -0700)]
ACPI/PCI: call _OSC support during root bridge discovery

Add pci_acpi_osc_support() and call it when a PCI bridge is added.  This
allows us to avoid having every individual PCI root bridge driver call
_OSC support for every root bridge in their probe functions, a
significant savings in boot time.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoACPI/PCI: include missing acpi.h file in pci-acpi.h.
Andrew Patterson [Mon, 10 Nov 2008 22:30:40 +0000 (15:30 -0700)]
ACPI/PCI: include missing acpi.h file in pci-acpi.h.

The pci-acpi.h file will not compile without including linux/acpi.h.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoPCI: Add legacy_io/mem to all busses
Benjamin Herrenschmidt [Wed, 12 Nov 2008 03:38:53 +0000 (14:38 +1100)]
PCI: Add legacy_io/mem to all busses

Currently, only PHBs get the legacy_* files, which makes it tricky for
userland to get access to the legacy space.  This commit exposes them in
every bus, since even child buses may forward legacy cycles if
configured properly.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoPCI: Extend pci_reset_function() to support PCI Advanced Features
Sheng Yang [Tue, 11 Nov 2008 09:17:48 +0000 (17:17 +0800)]
PCI: Extend pci_reset_function() to support PCI Advanced Features

Some PCI devices implement PCI Advanced Features, which means they
support Function Level Reset(FLR).  Implement support for that in
pci_reset_function.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoPCI: add PCI Advanced Feature Capability defines
Sheng Yang [Tue, 11 Nov 2008 09:17:46 +0000 (17:17 +0800)]
PCI: add PCI Advanced Feature Capability defines

PCI Advanced Features Capability is introduced by "Conventional PCI
Advanced Caps ECN" (can be downloaded in pcisig.com).  Add defines for
the various AF capabilities, including function level reset (FLR).

Reviewed-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoPCI: Refactor pci_reset_function()
Sheng Yang [Tue, 11 Nov 2008 09:17:47 +0000 (17:17 +0800)]
PCI: Refactor pci_reset_function()

Separate out function level reset so that pci_reset_function can be more
easily extended.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoPCI: struct device - replace bus_id with dev_name(), dev_set_name()
Kay Sievers [Thu, 30 Oct 2008 01:17:49 +0000 (02:17 +0100)]
PCI: struct device - replace bus_id with dev_name(), dev_set_name()

This patch is part of a larger patch series which will remove
the "char bus_id[20]" name string from struct device. The device
name is managed in the kobject anyway, and without any size
limitation, and just needlessly copied into "struct device".

To set and read the device name dev_name(dev) and dev_set_name(dev)
must be used. If your code uses static kobjects, which it shouldn't
do, "const char *init_name" can be used to statically provide the
name the registered device should have. At registration time, the
init_name field is cleared, to enforce the use of dev_name(dev) to
access the device name at a later time.

We need to get rid of all occurrences of bus_id in the entire tree
to be able to enable the new interface. Please apply this patch,
and possibly convert any remaining remaining occurrences of bus_id.

Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-Off-By: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoPCI: fixup whitespace in quirks.c
Jesse Barnes [Tue, 28 Oct 2008 00:50:21 +0000 (17:50 -0700)]
PCI: fixup whitespace in quirks.c

Had a space before tab in do_fixups, prototype wasn't wrapped properly either.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoPCI hotplug: pciehp: remove unnecessary wait after turning power off
Kenji Kaneshige [Fri, 24 Oct 2008 05:26:35 +0000 (14:26 +0900)]
PCI hotplug: pciehp: remove unnecessary wait after turning power off

The pciehp driver waits for 1000 msec after turning power off to make
sure the power has been completely removed. But this 1000 msec wait is
not needed if a slot doesn't implement power control because software
cannot control the power. Power will be automatically removed at adapter
removal time on such a slot

Tested-by: "Phil Endecott" <phil_pibbu_endecott@chezphil.org>
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoPCI: check mmap range of /proc/bus/pci files too
Jesse Barnes [Fri, 24 Oct 2008 17:32:33 +0000 (10:32 -0700)]
PCI: check mmap range of /proc/bus/pci files too

/proc/bus/pci allows you to mmap resource ranges too, so we should probably be
checking to make sure the mapping is somewhat valid.  Uses the same code as the recent sysfs mmap range checking patch from Linus.

Acked-by: David Miller <davem@davemloft.net>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoFix up 64-bit byte swaps for most 32-bit architectures
Linus Torvalds [Wed, 7 Jan 2009 05:17:57 +0000 (21:17 -0800)]
Fix up 64-bit byte swaps for most 32-bit architectures

The __SWAB_64_THRU_32__ case of a 64-bit byte swap was depending on the
no-longer-existant ___swab32() method (three underscores).  We got rid
of some of the worst indirection and complexity, and now it should just
use the 32-bit swab function that was defined right above it.

Reported-and-tested-by: Nicolas Pitre <nico@cam.org>
Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agobyteorder: remove the now unused byteorder.h
Harvey Harrison [Tue, 6 Jan 2009 21:30:58 +0000 (13:30 -0800)]
byteorder: remove the now unused byteorder.h

This implementation caused problems in userspace which can, and does
define _both_ __LITTLE_ENDIAN and __BIG_ENDIAN.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agomn10300: introduce asm/swab.h
Harvey Harrison [Tue, 6 Jan 2009 22:56:34 +0000 (14:56 -0800)]
mn10300: introduce asm/swab.h

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agofrv: introduce asm/swab.h
Harvey Harrison [Tue, 6 Jan 2009 22:56:33 +0000 (14:56 -0800)]
frv: introduce asm/swab.h

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agom32r: introduce asm/swab.h
Harvey Harrison [Tue, 6 Jan 2009 22:56:33 +0000 (14:56 -0800)]
m32r: introduce asm/swab.h

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agom68knommu: introduce asm/swab.h
Harvey Harrison [Tue, 6 Jan 2009 22:56:32 +0000 (14:56 -0800)]
m68knommu: introduce asm/swab.h

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoh8300: introduce asm/swab.h
Harvey Harrison [Tue, 6 Jan 2009 22:56:31 +0000 (14:56 -0800)]
h8300: introduce asm/swab.h

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoia64: introduce asm/swab.h
Harvey Harrison [Tue, 6 Jan 2009 22:56:31 +0000 (14:56 -0800)]
ia64: introduce asm/swab.h

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoblackfin: introduce asm/swab.h
Harvey Harrison [Tue, 6 Jan 2009 22:56:30 +0000 (14:56 -0800)]
blackfin: introduce asm/swab.h

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoarm: introduce asm/swab.h
Harvey Harrison [Tue, 6 Jan 2009 22:56:30 +0000 (14:56 -0800)]
arm: introduce asm/swab.h

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoalpha: introduce asm/swab.h
Harvey Harrison [Tue, 6 Jan 2009 22:56:29 +0000 (14:56 -0800)]
alpha: introduce asm/swab.h

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agom68k: introduce asm/swab.h
Harvey Harrison [Tue, 6 Jan 2009 22:56:28 +0000 (14:56 -0800)]
m68k: introduce asm/swab.h

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agox86: introduce asm/swab.h
Harvey Harrison [Tue, 6 Jan 2009 22:56:28 +0000 (14:56 -0800)]
x86: introduce asm/swab.h

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agosparc: introduce asm/swab.h
Harvey Harrison [Tue, 6 Jan 2009 22:56:27 +0000 (14:56 -0800)]
sparc: introduce asm/swab.h

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agosh: introduce asm/swab.h
Harvey Harrison [Tue, 6 Jan 2009 22:56:25 +0000 (14:56 -0800)]
sh: introduce asm/swab.h

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agos390: introduce asm/swab.h
Harvey Harrison [Tue, 6 Jan 2009 22:56:24 +0000 (14:56 -0800)]
s390: introduce asm/swab.h

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agopowerpc: introduce asm/swab.h
Harvey Harrison [Tue, 6 Jan 2009 22:56:23 +0000 (14:56 -0800)]
powerpc: introduce asm/swab.h

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agomips: introduce asm/swab.h
Harvey Harrison [Tue, 6 Jan 2009 22:56:23 +0000 (14:56 -0800)]
mips: introduce asm/swab.h

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoavr32: introduce asm/swab.h
Harvey Harrison [Tue, 6 Jan 2009 22:56:22 +0000 (14:56 -0800)]
avr32: introduce asm/swab.h

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agobyteorder: only use linux/swab.h
Harvey Harrison [Tue, 6 Jan 2009 22:56:21 +0000 (14:56 -0800)]
byteorder: only use linux/swab.h

The first step to make swab.h a regular header that will
include an asm/swab.h with arch overrides.

Avoid the gratuitous differences introduced in the new
linux/swab.h by naming the ___constant_swabXX bits and
__fswabXX bits exactly as found in the old implementation
in byteorder/swab[b].h

Use this new swab.h in byteorder/[big|little]_endian.h and
remove the two old swab headers.

Although the inclusion of asm/byteorder.h looks strange in
linux/swab.h, this will allow each arch to move the actual
arch overrides for the swab bits in an asm file and then
the includes can be cleaned up without requiring a flag day
for all arches at once.

Keep providing __fswabXX in case some userspace was using them
directly, but the revised __swabXX should be used instead in
any new code and will always do constant folding not dependent
on the optimization level, which means the __constant versions
can be phased out in-kernel.

Arches that use the old-style arch macros will lose their
optimized versions until they move to the new style, but at
least they will still compile.  Many arches have already moved
and the patches to move the remaining arches are trivial.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoMerge branch 'drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Wed, 7 Jan 2009 02:06:44 +0000 (18:06 -0800)]
Merge branch 'drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6

* 'drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm: fix ordering of driver unload vs agp unload.
  drm/i915: Respect the other stolen memory sizes we know of.
  drm/i915: Non-mobile parts don't have integrated TV-out.
  drm/i915: Add support for integrated HDMI on G4X hardware.
  drm/i915: Pin cursor bo and unpin old bo when setting cursor.
  drm/i915: Don't allow objects to get bound while VT switched.

15 years agodrm: fix ordering of driver unload vs agp unload.
Dave Airlie [Wed, 7 Jan 2009 01:54:57 +0000 (11:54 +1000)]
drm: fix ordering of driver unload vs agp unload.

For KMS drivers, we really need to cleanup the driver before disabling
the AGP subsystem.

Signed-off-by: Dave Airlie <airlied@redhat.com>
15 years agodrm/i915: Respect the other stolen memory sizes we know of.
Eric Anholt [Sat, 3 Jan 2009 02:05:51 +0000 (18:05 -0800)]
drm/i915: Respect the other stolen memory sizes we know of.

fd.o bug #19336.

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
15 years agodrm/i915: Non-mobile parts don't have integrated TV-out.
Eric Anholt [Fri, 2 Jan 2009 23:57:35 +0000 (15:57 -0800)]
drm/i915: Non-mobile parts don't have integrated TV-out.

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
15 years agodrm/i915: Add support for integrated HDMI on G4X hardware.
Eric Anholt [Fri, 2 Jan 2009 21:33:00 +0000 (13:33 -0800)]
drm/i915: Add support for integrated HDMI on G4X hardware.

This is ported directly from the userland 2D driver code.  The HDMI audio bits
aren't hooked up yet.

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
15 years agodrm/i915: Pin cursor bo and unpin old bo when setting cursor.
Kristian Høgsberg [Thu, 18 Dec 2008 03:14:59 +0000 (22:14 -0500)]
drm/i915: Pin cursor bo and unpin old bo when setting cursor.

We also didn't track the cursor bo before and would leak a reference
when the cursor image was change.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
15 years agodrm/i915: Don't allow objects to get bound while VT switched.
Eric Anholt [Wed, 24 Dec 2008 02:42:32 +0000 (18:42 -0800)]
drm/i915: Don't allow objects to get bound while VT switched.

This avoids a BUG_ON in the enter_vt path due to objects being in the GTT
when we shouldn't have ever let them be (as we're not supposed to touch the
device during that time).

This was triggered by a change in the 2D driver to use the GTT mapping of
objects after pinning them to improve software fallback performance.

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Wed, 7 Jan 2009 01:14:01 +0000 (17:14 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (29 commits)
  Input: i8042 - add Dell Vostro 1510 to nomux list
  Input: gtco - use USB endpoint API
  Input: add support for Maple controller as a joystick
  Input: atkbd - broaden the Dell DMI signatures
  Input: HIL drivers - add MODULE_ALIAS()
  Input: map_to_7segment.h - convert to __inline__ for userspace
  Input: add support for enhanced rotary controller on pxa930 and pxa935
  Input: add support for trackball on pxa930 and pxa935
  Input: add da9034 touchscreen support
  Input: ads7846 - strict_strtoul takes unsigned long
  Input: make some variables and functions static
  Input: add tsc2007 based touchscreen driver
  Input: psmouse - add module parameters to control OLPC touchpad delays
  Input: i8042 - add Gigabyte M912 netbook to noloop exception table
  Input: atkbd - Samsung NC10 key repeat fix
  Input: atkbd - add keyboard quirk for HP Pavilion ZV6100 laptop
  Input: libps2 - handle 0xfc responses from devices
  Input: add support for Wacom W8001 penabled serial touchscreen
  Input: synaptics - report multi-taps only if supported by the device
  Input: add joystick driver for Walkera WK-0701 RC transmitter
  ...

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
Linus Torvalds [Wed, 7 Jan 2009 01:11:39 +0000 (17:11 -0800)]
Merge branch 'for-linus' of 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:
  CRED: Fix regression in cap_capable() as shown up by sys_faccessat() [ver #3]
  Revert "CRED: Fix regression in cap_capable() as shown up by sys_faccessat() [ver #2]"
  SELinux: shrink sizeof av_inhert selinux_class_perm and context
  CRED: Fix regression in cap_capable() as shown up by sys_faccessat() [ver #2]
  keys: fix sparse warning by adding __user annotation to cast
  smack: Add support for unlabeled network hosts and networks
  selinux: Deprecate and schedule the removal of the the compat_net functionality
  netlabel: Update kernel configuration API

15 years agoMerge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 7 Jan 2009 01:10:53 +0000 (17:10 -0800)]
Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  hrtimer: splitout peek ahead functionality, fix
  hrtimer: fixup comments
  hrtimer: fix recursion deadlock by re-introducing the softirq
  hrtimer: simplify hotplug migration
  hrtimer: fix HOTPLUG_CPU=n compile warning
  hrtimer: splitout peek ahead functionality

15 years agoMerge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 7 Jan 2009 01:10:33 +0000 (17:10 -0800)]
Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: fix section mismatch
  sched: fix double kfree in failure path
  sched: clean up arch_reinit_sched_domains()
  sched: mark sched_create_sysfs_power_savings_entries() as __init
  getrusage: RUSAGE_THREAD should return ru_utime and ru_stime
  sched: fix sched_slice()
  sched_clock: prevent scd->clock from moving backwards, take #2
  sched: sched.c declare variables before they get used

15 years agoMerge branch 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Wed, 7 Jan 2009 01:10:19 +0000 (17:10 -0800)]
Merge branch 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  genirq: provide irq_to_desc() to non-genirq architectures too

15 years agoMerge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 7 Jan 2009 01:10:04 +0000 (17:10 -0800)]
Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/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:
  rcu: fix rcutorture bug
  rcu: eliminate synchronize_rcu_xxx macro
  rcu: make treercu safe for suspend and resume
  rcu: fix rcutree grace-period-latency bug on small systems
  futex: catch certain assymetric (get|put)_futex_key calls
  futex: make futex_(get|put)_key() calls symmetric
  locking, percpu counters: introduce separate lock classes
  swiotlb: clean up EXPORT_SYMBOL usage
  swiotlb: remove unnecessary declaration
  swiotlb: replace architecture-specific swiotlb.h with linux/swiotlb.h
  swiotlb: add support for systems with highmem
  swiotlb: store phys address in io_tlb_orig_addr array
  swiotlb: add hwdev to swiotlb_phys_to_bus() / swiotlb_sg_to_bus()

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Wed, 7 Jan 2009 01:09:51 +0000 (17:09 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ASoC: Fix SND_SOC_ALL_CODECS handling of dual SPI and I2C control buses
  ASoC: Use snd_soc_dapm_nc_pin() in at91sam9g20ek
  ASoC: TWL4030: Convert the bitfield enums to VALUE_ENUM type
  ASoC: New enum type: value_enum
  pxa2xx-ac97: switch AC unit to correct state before probing
  ASoC: Clocking fixes for davinci-evm.c
  ASoC: Mark non-connected TWL4030 pins for pandora
  ASoC: OMAP: Select OMAP pin multiplexing when using Nokia N810 ASoC drivers

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
Linus Torvalds [Wed, 7 Jan 2009 01:04:29 +0000 (17:04 -0800)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (237 commits)
  Staging: android: binder: fix build errors
  Staging: android: add lowmemorykiller driver
  Staging: android: remove dummy android.c driver
  Staging: android: timed_gpio: Rename android_timed_gpio to timed_gpio
  Staging: android: add timed_gpio driver
  Staging: android: add ram_console driver
  Staging: android: add logging driver
  staging: android: binder: Fix use of euid
  Staging: android: binder: Fix gcc warnings about improper format specifiers for size_t in printk
  Staging: android: add binder driver
  Staging: add android framework
  Staging: epl: fix netdev->priv b0rkage
  Staging: epl: hr timers all run in hard irq context now
  Staging: epl: run Lindent on *.c files
  Staging: epl: run Lindent on *.h files
  Staging: epl: run Lindent on all user/*.h files
  Staging: epl: run Lindent on all kernel/*.h files
  Staging: add epl stack
  Staging: frontier: fix compiler warnings
  Staging: frontier: remove unused alphatrack_sysfs.c file
  ...

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
Linus Torvalds [Wed, 7 Jan 2009 01:02:07 +0000 (17:02 -0800)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (60 commits)
  uio: make uio_info's name and version const
  UIO: Documentation for UIO ioport info handling
  UIO: Pass information about ioports to userspace (V2)
  UIO: uio_pdrv_genirq: allow custom irq_flags
  UIO: use pci_ioremap_bar() in drivers/uio
  arm: struct device - replace bus_id with dev_name(), dev_set_name()
  libata: struct device - replace bus_id with dev_name(), dev_set_name()
  avr: struct device - replace bus_id with dev_name(), dev_set_name()
  block: struct device - replace bus_id with dev_name(), dev_set_name()
  chris: struct device - replace bus_id with dev_name(), dev_set_name()
  dmi: struct device - replace bus_id with dev_name(), dev_set_name()
  gadget: struct device - replace bus_id with dev_name(), dev_set_name()
  gpio: struct device - replace bus_id with dev_name(), dev_set_name()
  gpu: struct device - replace bus_id with dev_name(), dev_set_name()
  hwmon: struct device - replace bus_id with dev_name(), dev_set_name()
  i2o: struct device - replace bus_id with dev_name(), dev_set_name()
  IA64: struct device - replace bus_id with dev_name(), dev_set_name()
  i7300_idle: struct device - replace bus_id with dev_name(), dev_set_name()
  infiniband: struct device - replace bus_id with dev_name(), dev_set_name()
  ISDN: struct device - replace bus_id with dev_name(), dev_set_name()
  ...

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi...
Linus Torvalds [Wed, 7 Jan 2009 01:01:20 +0000 (17:01 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: clean up annotations of fc->lock
  fuse: fix sparse warning in ioctl
  fuse: update interface version
  fuse: add fuse_conn->release()
  fuse: separate out fuse_conn_init() from new_conn()
  fuse: add fuse_ prefix to several functions
  fuse: implement poll support
  fuse: implement unsolicited notification
  fuse: add file kernel handle
  fuse: implement ioctl support
  fuse: don't let fuse_req->end() put the base reference
  fuse: move FUSE_MINOR to miscdevice.h
  fuse: style fixes

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
Linus Torvalds [Wed, 7 Jan 2009 01:00:50 +0000 (17:00 -0800)]
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (41 commits)
  scc_pata: make use of scc_dma_sff_read_status()
  ide-dma-sff: factor out ide_dma_sff_write_status()
  ide: move read_sff_dma_status() method to 'struct ide_dma_ops'
  ide: don't set hwif->dma_ops in init_dma() method
  Resurrect IT8172 IDE controller driver
  piix: sync ich_laptop[] with ata_piix.c
  ide: update warm-plug HOWTO
  ide: fix ide_port_scan() to do ACPI setup after initializing request queues
  ide: remove now redundant ->cur_dev checks
  ide: remove unused ide_hwif_t.sg_mapped field
  ide: struct ide_atapi_pc - remove unused fields and update documentation
  ide: remove superfluous hwif variable assignment from ide_timer_expiry()
  ide: use ide_pci_is_in_compatibility_mode() helper in setup-pci.c
  ide: make "paranoia" ->handler check in ide_intr() more strict
  ide-cd: convert to ide-atapi facilities
  ide-cd: start DMA before sending the actual packet command
  ide-cd: wait for DRQ to get set per default
  ide: Fix drive's DWORD-IO handling
  ide: add port and host iterators
  ide: dynamic allocation of device structures
  ...

15 years agoparport: ieee1284: use del_timer_sync() in parport_wait_event()
Michael Buesch [Tue, 6 Jan 2009 22:43:14 +0000 (14:43 -0800)]
parport: ieee1284: use del_timer_sync() in parport_wait_event()

Use del_timer_sync() instead of del_timer() to make sure the timer won't
be running when we return from parport_wait_event(), because this would
crash due to destruction of timer_list.

This is untested and just based on a code review.  Just think about the
following sequence of events:

- add_timer()

- down_interruptible() is interrupted by a signal.

- we enter the timer callback handler on another CPU.

- del_timer(), but the timer callback is still running.

- eturn from parport_wait_even, which destroys the automatic variable
  "timer" while the callback is running on another CPU.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agobfs: check that filesystem fits on the blockdevice
Eric Sesterhenn [Tue, 6 Jan 2009 22:43:13 +0000 (14:43 -0800)]
bfs: check that filesystem fits on the blockdevice

Since all sanity checks rely on the validity of s_start which gets only
checked to be smaller than s_end, we should also check if s_end is sane.
Now we also try to retrieve the last block of the filesystem, which is
computed by s_end.  If this fails, something is bogus.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Acked-by: Tigran Aivazian <tigran@aivazian.fsnet.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agobfs: add some basic sanity checks
Eric Sesterhenn [Tue, 6 Jan 2009 22:43:12 +0000 (14:43 -0800)]
bfs: add some basic sanity checks

bfs_fill_super() already touches all inodes, so we can easily add some
cheap sanity checks and check if the inode start and end blocks are
smaller than the maximum number of blocks, the inode start block lies
behind the end block or the file end offset is behind the end of the
filesystem.  Also check if the start of data offset in the super block
fits the filesystem.

The added sanity checks catch softlockup issues early when we try to
sb_bread() lots of blocks in a loop in bfs_readdir() and bfs_find_entry().
 In addition an oom issue in bfs_fill_super() is prevented by this when
s_start is corrupted, which influences imap_len and we try to allocate a
huge info->si_imap.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Acked-by: Tigran Aivazian <tigran@aivazian.fsnet.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agodma-coherent: catch oversized requests to dma_alloc_from_coherent()
Johannes Weiner [Tue, 6 Jan 2009 22:43:10 +0000 (14:43 -0800)]
dma-coherent: catch oversized requests to dma_alloc_from_coherent()

Prevent passing an order to bitmap_find_free_region() that is larger than
the actual bitmap can represent.

These requests can come from device drivers that have no idea how big the
dma region is and need to rely on dma_alloc_from_coherent() to sort it out
for them.

Reported-by: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Dmitry Baryshkov <dbaryshkov@gmail.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agodma_alloc_coherent: clean it up
Andrew Morton [Tue, 6 Jan 2009 22:43:09 +0000 (14:43 -0800)]
dma_alloc_coherent: clean it up

This thing was rather stupidly coded.  Rework it all prior to making
changes.

Also, rename local variable `page': kernel readers expect something called
`page' to have type `struct page *'.

Cc: Guennadi Liakhovetski <lg@denx.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Dmitry Baryshkov <dbaryshkov@gmail.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agodma_alloc_from_coherent(): fix fallback to generic memory
Andrew Morton [Tue, 6 Jan 2009 22:43:08 +0000 (14:43 -0800)]
dma_alloc_from_coherent(): fix fallback to generic memory

If bitmap_find_free_region() fails and DMA_MEMORY_EXCLUSIVE is not set,
the function will fail to write anything to *ret and will return 1.             This will cause dma_alloc_coherent() to return an uninitialised value,
crashing the kernel, perhaps via DMA to a random address.

Fix that by changing it to return zero in this case, so the caller will
proceed to allocate the memory from the generic memory allocator.

Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Cc: Dmitry Baryshkov <dbaryshkov@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoedac: driver for i5400 MCH (update)
Mauro Carvalho Chehab [Tue, 6 Jan 2009 22:43:00 +0000 (14:43 -0800)]
edac: driver for i5400 MCH (update)

Signed-off-by: Ben Woodard <woodard@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoedac: driver for i5400 MCH (Seaburg)
Mauro Carvalho Chehab [Tue, 6 Jan 2009 22:43:00 +0000 (14:43 -0800)]
edac: driver for i5400 MCH (Seaburg)

EDAC driver for i5400 MCH (Seaburg)

This driver adds support for i5400 MCH chipset.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Ben Woodard <woodard@redhat.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoedac: fix mpc85xx and add mpc8536 mpc8560
Kumar Gala [Tue, 6 Jan 2009 22:42:59 +0000 (14:42 -0800)]
edac: fix mpc85xx and add mpc8536 mpc8560

All other compatibles that are uniquely identifying the processor use a
prefix of the form fsl,mpc85...'.  We add support for it so we can
deprecate the older 'fsl,85...' that was improperly used here.

Additionally added mpc8536 & mpc8560 to the compatible lists.

This patch is based on Nate's 8572 patch.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Acked-by: Dave Jiang <djiang@mvista.com>
Cc: Nate Case <ncase@xes-inc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoedac: struct device: replace bus_id with dev_name(), dev_set_name()
Kay Sievers [Tue, 6 Jan 2009 22:42:57 +0000 (14:42 -0800)]
edac: struct device: replace bus_id with dev_name(), dev_set_name()

This patch is part of a larger patch series which will remove the "char
bus_id[20]" name string from struct device.  The device name is managed in
the kobject anyway, and without any size limitation, and just needlessly
copied into "struct device".

[akpm@linux-foundation.org: coding-style fixes]
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agopci: use pci_ioremap_bar() in drivers/edac
Arjan van de Ven [Tue, 6 Jan 2009 22:42:56 +0000 (14:42 -0800)]
pci: use pci_ioremap_bar() in drivers/edac

Use the newly introduced pci_ioremap_bar() function in drivers/edac.
pci_ioremap_bar() just takes a pci device and a bar number, with the goal
of making it really hard to get wrong, while also having a central place
to stick sanity checks.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Acked-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agorandom: don't try to look at entropy_count outside the lock
Matt Mackall [Tue, 6 Jan 2009 22:42:55 +0000 (14:42 -0800)]
random: don't try to look at entropy_count outside the lock

As a non-atomic value, it's only safe to look at entropy_count when the
pool lock is held, so we move the BUG_ON inside the lock for correctness.

Also remove the spurious comment.  It's ok for entropy_count to
temporarily exceed POOLBITS so long as it's left in a consistent state
when the lock is released.

This is a more correct, simple, and idiomatic fix for the bug in
8b76f46a2db.  I've left the reorderings introduced by that patch in place
as they're harmless, even though they don't properly deal with potential
atomicity issues.

Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoconsolemap: indentation & braces disagree - reindent
Ilpo Järvinen [Tue, 6 Jan 2009 22:42:54 +0000 (14:42 -0800)]
consolemap: indentation & braces disagree - reindent

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agomake firmware/dsp56k/bootstrap.asm buildable on a56
Robert Millan [Tue, 6 Jan 2009 22:42:52 +0000 (14:42 -0800)]
make firmware/dsp56k/bootstrap.asm buildable on a56

Make firmware/dsp56k/bootstrap.asm buildable on a56, the free Motorola
DSP56001 assembler (http://www.zdomain.com/a56.html).

Summary of changes:

  - Remove '<' and '>' candy (they specify explicit addressing modes,
    which a56 don't grok, but uses implicitly anyway).

  - Replace 'move' with 'movem' when accessing program memory.

  - Rename a few labels to avoid duplicates (which a56 can't handle).

Signed-off-by: Robert Millan <rmh@aybabtu.com>
Cc: Jaswinder Singh <jaswinder@infradead.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoipc/ipc_sysctl.c: move the definition of ipc_auto_callback()
akpm@linux-foundation.org [Tue, 6 Jan 2009 22:42:51 +0000 (14:42 -0800)]
ipc/ipc_sysctl.c: move the definition of ipc_auto_callback()

proc_ipcauto_dointvec_minmax() is the only user of ipc_auto_callback(),
since the former function is protected by CONFIG_PROC_FS, so should be the
latter one.

Just move its definition down.

Signed-off-by: WANG Cong <wangcong@zeuux.org>
Cc: Eric Biederman <ebiederm@xmision.com>
Cc: Nadia Derbey <Nadia.Derbey@bull.net>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoipc: do not goto to the next line
Denis V. Lunev [Tue, 6 Jan 2009 22:42:50 +0000 (14:42 -0800)]
ipc: do not goto to the next line

Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: WANG Cong <wangcong@zeuux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoipc: clean up ipc/shm.c
WANG Cong [Tue, 6 Jan 2009 22:42:49 +0000 (14:42 -0800)]
ipc: clean up ipc/shm.c

Use the macro shm_ids().

Remove useless check for a userspace pointer, because copy_to_user()
will check it.

Some style cleanups.

Signed-off-by: WANG Cong <wangcong@zeuux.org>
Cc: Nadia Derbey <Nadia.Derbey@bull.net>
Cc: Pierre Peiffer <peifferp@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agofs/exec.c: make do_coredump() void
WANG Cong [Tue, 6 Jan 2009 22:42:48 +0000 (14:42 -0800)]
fs/exec.c: make do_coredump() void

No one cares do_coredump()'s return value, and also it seems that it
is also not necessary. So make it void.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: WANG Cong <wangcong@zeuux.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agocoredump_filter: permit changing of the default filter
Hidehiro Kawai [Tue, 6 Jan 2009 22:42:47 +0000 (14:42 -0800)]
coredump_filter: permit changing of the default filter

Introduce a new kernel parameter `coredump_filter'.  Setting a value to
this parameter causes the default bitmask of coredump_filter to be
changed.

It is useful for users to change coredump_filter settings for the whole
system at boot time.  Without this parameter, users have to change
coredump_filter settings for each /proc/<pid>/ in an initializing script.

Signed-off-by: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoSEND_SIG_NOINFO: set si_pid to tgid instead of pid
Sukadev Bhattiprolu [Tue, 6 Jan 2009 22:42:46 +0000 (14:42 -0800)]
SEND_SIG_NOINFO: set si_pid to tgid instead of pid

POSIX requires the si_pid to be the process id of the sender, so ->si_pid
should really be set to 'tgid'.  This change does have following changes
in behavior:

- When sending pdeath_signal on re-parent to a sub-thread, ->si_pid
  cannot be used to identify the thread that did the re-parent since
  it will now show the tgid instead of thread id.

- A multi-threaded application that expects to find the specific
  thread that encountered a SIGPIPE using the ->si_pid will now
  break.

Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Acked-By: Roland McGrath <roland@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoSEND_SIG_NOINFO: masquerade si_pid when crossing pid-ns boundary
Sukadev Bhattiprolu [Tue, 6 Jan 2009 22:42:45 +0000 (14:42 -0800)]
SEND_SIG_NOINFO: masquerade si_pid when crossing pid-ns boundary

For SEND_SIG_NOINFO, si_pid is currently set to the pid of sender
in sender's active pid namespace. But if the receiver is in a
Eg: when parent sends the 'pdeath_signal' to a child that is in
a descendant pid namespace, we should set si_pid 0.

Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Acked-By: Roland McGrath <roland@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agodoc: reformat some long lines in kernel-parameters.txt
Randy Dunlap [Tue, 6 Jan 2009 22:42:44 +0000 (14:42 -0800)]
doc: reformat some long lines in kernel-parameters.txt

Reformat text to (mostly) stay within 80 columns of text.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agodocs: add more early params to kernel-parameters.txt
Randy Dunlap [Tue, 6 Jan 2009 22:42:44 +0000 (14:42 -0800)]
docs: add more early params to kernel-parameters.txt

Add some (more) early_param boot options to kernel-parameters.txt.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agodocumentation: how to use DOC: section blocks
Randy Dunlap [Tue, 6 Jan 2009 22:42:43 +0000 (14:42 -0800)]
documentation: how to use DOC: section blocks

Add info on how to use DOC: sections in kernel-doc.  DOC: sections enable
the addition of inline source file comments that are general in nature
instead of being specific to a function, struct, union, enum, or typedef.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agodocumentation: update s390 header file paths
Randy Dunlap [Tue, 6 Jan 2009 22:42:42 +0000 (14:42 -0800)]
documentation: update s390 header file paths

Update Documentation/s390/ files to reflect changed header files
locations.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agodocumentation: update header file paths
Randy Dunlap [Tue, 6 Jan 2009 22:42:41 +0000 (14:42 -0800)]
documentation: update header file paths

Update several Documentation/ files and a few sub-dir files (only one
change in each) to reflect changed header files locations.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agorapidio: remove excess kernel-doc notation
Randy Dunlap [Tue, 6 Jan 2009 22:42:41 +0000 (14:42 -0800)]
rapidio: remove excess kernel-doc notation

Remove excess kernel-doc notation from rio header and driver:

Warning(include/linux/rio_drv.h:399): Excess function parameter or struct member 'buffer' description in 'rio_get_inb_message'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agodocs: document how to write @varargs in kernel-doc
Randy Dunlap [Tue, 6 Jan 2009 22:42:40 +0000 (14:42 -0800)]
docs: document how to write @varargs in kernel-doc

Add documentation on how to use kernel-doc for function parameters
that are "..." (varargs).

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agokmod: fix varargs kernel-doc
Randy Dunlap [Tue, 6 Jan 2009 22:42:39 +0000 (14:42 -0800)]
kmod: fix varargs kernel-doc

Fix varargs kernel-doc format in kmod.c:
Use @... instead of @varargs.

Warning(kernel/kmod.c:67): Excess function parameter or struct member 'varargs' description in 'request_module'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agominix: fix add link's wrong position calculation
Evgeniy Dushistov [Tue, 6 Jan 2009 22:42:38 +0000 (14:42 -0800)]
minix: fix add link's wrong position calculation

Fix the add link method.  The oosition in the directory was calculated in
wrong way - it had the incorrect shift direction.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: <stable@kernel.org> [2.6.lots]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agofbdev/logo: check compatibility of main and extra logos
Geert Uytterhoeven [Tue, 6 Jan 2009 22:42:37 +0000 (14:42 -0800)]
fbdev/logo: check compatibility of main and extra logos

The code to draw penguin logos always uses some properties of the main logo.
This is incorrect if additional logos (CONFIG_FB_LOGO_EXTRA=y) have different
types than the main logo, which causes corrupted logo images.

  http://bugzilla.kernel.org/show_bug.cgi?id=12181

Hence skip additional logos that are not compatible with the main logo.

Technically, it's possible to draw multiple logos of different types on
truecolor displays, but this would complicate the (already quite
complicated) logo drawing code even more.

This patch fixes a problem with Debian's linux-image-2.6.26-1-powerpc64
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=508173

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agosm501: unsigned ptr cannot be negative
roel kluin [Tue, 6 Jan 2009 22:42:36 +0000 (14:42 -0800)]
sm501: unsigned ptr cannot be negative

unsigned ptr cannot be negative

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agointelfb: fix sparse warnings
Hannes Eder [Tue, 6 Jan 2009 22:42:35 +0000 (14:42 -0800)]
intelfb: fix sparse warnings

Fix this sparse warnings:

  drivers/video/intelfb/intelfbdrv.c:1497:3: warning: returning void-valued expression
  drivers/video/intelfb/intelfbdrv.c:1525:3: warning: returning void-valued expression
  drivers/video/intelfb/intelfbdrv.c:1544:3: warning: returning void-valued expression
  drivers/video/intelfb/intelfbdrv.c:1558:3: warning: returning void-valued expression

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoi810: fix sparse warnings
Hannes Eder [Tue, 6 Jan 2009 22:42:34 +0000 (14:42 -0800)]
i810: fix sparse warnings

Fix this sparse warnings:

  drivers/video/i810/i810_accel.c:305:3: warning: returning void-valued expression
  drivers/video/i810/i810_accel.c:331:3: warning: returning void-valued expression
  drivers/video/i810/i810_accel.c:370:3: warning: returning void-valued expression

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoneofb: fix sparse warnings
Hannes Eder [Tue, 6 Jan 2009 22:42:34 +0000 (14:42 -0800)]
neofb: fix sparse warnings

Fix this sparse warnings:

  drivers/video/neofb.c:1456:4: warning: returning void-valued expression
  drivers/video/neofb.c:1464:3: warning: returning void-valued expression

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agopm3fb: fix sparse warning
Hannes Eder [Tue, 6 Jan 2009 22:42:33 +0000 (14:42 -0800)]
pm3fb: fix sparse warning

Fix this sparse warning:

  drivers/video/pm3fb.c:543:3: warning: returning void-valued expression

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoviafb: fix sparse warnings
Hannes Eder [Tue, 6 Jan 2009 22:42:32 +0000 (14:42 -0800)]
viafb: fix sparse warnings

Fix this sparse warnings:

  drivers/video/via/viafbdev.c:871:3: warning: returning void-valued expression
  drivers/video/via/viafbdev.c:938:3: warning: returning void-valued expression
  drivers/video/via/viafbdev.c:995:3: warning: returning void-valued expression

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agonvidia: fix sparse warnings
Hannes Eder [Tue, 6 Jan 2009 22:42:32 +0000 (14:42 -0800)]
nvidia: fix sparse warnings

Fix this sparse warnings:

  drivers/video/nvidia/nv_accel.c:304:3: warning: returning void-valued expression
  drivers/video/nvidia/nv_accel.c:323:3: warning: returning void-valued expression

Signed-off-by: Hannes Eder <hannes@hanneseder.net>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agogbefb: unsigned var->pixclock cannot be less than 0
roel kluin [Tue, 6 Jan 2009 22:42:31 +0000 (14:42 -0800)]
gbefb: unsigned var->pixclock cannot be less than 0

unsigned var->pixclock cannot be less than 0

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agofb: carminefb: trivial annotation packing color register
Harvey Harrison [Tue, 6 Jan 2009 22:42:30 +0000 (14:42 -0800)]
fb: carminefb: trivial annotation packing color register

drivers/video/carminefb.c:171:41: warning: cast to restricted __be32

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoblackfin: remove __FUNCTION__ in video driver
Harvey Harrison [Tue, 6 Jan 2009 22:42:30 +0000 (14:42 -0800)]
blackfin: remove __FUNCTION__ in video driver

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Acked-by: Bryan Wu <bryan.wu@analog.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agofbdev: fix typo in drivers/video/modedb.c
Jiri Moravec [Tue, 6 Jan 2009 22:42:29 +0000 (14:42 -0800)]
fbdev: fix typo in drivers/video/modedb.c

When I viewed drivers/video/modedb.c, I noticed a very old typo already
contained in 2.6.0.

This typo remained unheeded at least 5 years.  Clear evidence of its
importance.  ;)

Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>