I get warnings about 'device' possibly being used uninitialised.  While
I can deduce this is not true, it seems that GCC can't.  This patch
changes `check_slot' to return device on success and -1 on error, which
shuts GCC up.
Acked-by: NAlex Chiang <achiang@hp.com>
Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

A new option, pcie_aspm=force, will force ASPM to be enabled, even on system
with PCIe 1.0 devices.
Signed-off-by: NShaohua Li <shaohua.li@intel.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

Disable ASPM on pre-1.1 PCIe devices, as many of them don't implement it
correctly.
Tested-by: NJack Howarth <howarth@bromo.msbb.uc.edu>
Signed-off-by: NShaohua Li <shaohua.li@intel.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

The ACPI FADT table includes an ASPM control bit. If the bit is set, do
not enable ASPM since it may indicate that the platform doesn't actually
support the feature.
Tested-by: NJack Howarth <howarth@bromo.msbb.uc.edu>
Signed-off-by: NShaohua Li <shaohua.li@intel.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

David Vrabel has a device which generates an interrupt storm on the INTx
pin if we disable MSI interrupts altogether.  Masking interrupts is only
a performance optimisation, so we can ignore the request to mask the
interrupt.
Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

Merge branch 'x86/iommu' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip into for-linus

If the kernel is configured to support 64-bit resources on a 32-bit
machine, we can support 64-bit BARs properly.  Just change the condition
to check sizeof(resource_size_t) instead of BITS_PER_LONG.
Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

Factor out the code to read one BAR from the loop in pci_read_bases into
a new function, __pci_read_base.  The new code is slightly more
readable, better commented and removes the ifdef.
Signed-off-by: NMatthew Wilcox <willy@linux.intel.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

The empty kdoc was causing warnings, so provide some actual documentation.
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

Comamnd->Command
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: add driver for Atmel integrated touchscreen controller
  Input: ads7846 - optimize order of calculating Rt in ads7846_rx()
  Input: ads7846 - fix sparse endian warnings
  Input: uinput - remove duplicate include
  Input: serio - offload resume to kseriod
  Input: serio - mark serio_register_driver() __must_check

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm:
  dlm: fix uninitialized variable for search_rsb_list callers
  dlm: release socket on error
  dlm: fix basts for granted CW waiting PR/CW
  dlm: check for null in device_write

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (25 commits)
  powerpc: Disable 64K hugetlb support when doing 64K SPU mappings
  powerpc/powermac: Fixup default serial port device for pmac_zilog
  powerpc/powermac: Use sane default baudrate for SCC debugging
  powerpc/mm: Implement _PAGE_SPECIAL & pte_special() for 64-bit
  powerpc: Show processor cache information in sysfs
  powerpc: Make core id information available to userspace
  powerpc: Make core sibling information available to userspace
  powerpc/vio: More fallout from dma_mapping_error API change
  ibmveth: Fix multiple errors with dma_mapping_error conversion
  powerpc/pseries: Fix CMO sysdev attribute API change fallout
  powerpc: Enable tracehook for the architecture
  powerpc: Add TIF_NOTIFY_RESUME support for tracehook
  powerpc: Add asm/syscall.h with the tracehook entry points
  powerpc: Make syscall tracing use tracehook.h helpers
  powerpc: Call tracehook_signal_handler() when setting up signal frames
  powerpc: Update cpu_sibling_maps dynamically
  powerpc: register_cpu_online should be __cpuinit
  powerpc: kill useless SMT code in prom_hold_cpus
  powerpc: Fix 8xx build failure
  powerpc: Fix vio build warnings
  ...

* git://git.kernel.org/pub/scm/linux/kernel/git/kkeil/ISDN-2.6:
  Remove deprecated virt_to_bus()

* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (72 commits)
  sh: SuperH Mobile CEU and camera platform data for AP325RXA
  sh: Update smc911x platform data for AP325RXA
  sh: SuperH Mobile LCDC platform data for AP325RXA
  sh: Add SuperH Mobile CEU platform data for Migo-R
  sh: Add SuperH Mobile LCDC platform data for Migo-R
  sh: Move asid_cache() out of ifdef to fix SH-3/4 nommu build.
  sh: Workaround for __put_user_asm() bug with gcc 4.x on big-endian.
  sh: Wire up new syscalls.
  sh: fix uImage Entry Point
  sh_keysc: remove request_mem_region() and release_mem_region()
  sh: Don't miss pending signals returning to user mode after signal processing
  sh: Use clk_always_enable() on sh7366
  sh: Use clk_always_enable() on sh7343 / SE77343
  sh: Use clk_always_enable() on sh7722 / Migo-R / SE7722
  sh: Use clk_always_enable() on sh7723 / ap325rxa
  sh: Introduce clk_always_enable() function
  sh: Show all clocks and their state in /proc/clocks
  sh: Merge sh7343 and sh7722 clock code
  sh: Add SuperH Mobile MSTPCR bits to clock framework
  sh: Use arch_flags to simplify sh7722 siu clock code
  ...

* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
  stop_machine: fix up ftrace.c
  stop_machine: Wean existing callers off stop_machine_run()
  stop_machine(): stop_machine_run() changed to use cpu mask
  Hotplug CPU: don't check cpu_online after take_cpu_down
  Simplify stop_machine
  stop_machine: add ALL_CPUS option
  module: fix build warning with !CONFIG_KALLSYMS

* git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (98 commits)
  V4L/DVB (8549): mxl5007: Fix an error at include file
  V4L/DVB (8548): pwc: Fix compilation
  V4L/DVB (8546): add tuner-3036 and dpc7146 drivers to feature-removal-schedule.txt
  V4L/DVB (8546): saa7146: fix read from uninitialized memory
  V4L/DVB (8544): gspca: probe/open race.
  V4L/DVB (8543): em28xx: Rename #define for Compro VideoMate ForYou/Stereo
  V4L/DVB (8542): em28xx: AMD ATI TV Wonder HD 600 entry at cards struct is duplicated
  V4L/DVB (8541): em28xx: HVR-950 entry is duplicated.
  V4L/DVB (8540): em28xx-cards: Add Compro VideoMate ForYou/Stereo model
  V4L/DVB (8539): em28xx-cards: New supported IDs for analog models
  V4L/DVB (8538): em28xx-cards: Add GrabBeeX+ USB2800 model
  V4L/DVB (8534): remove select's of FW_LOADER
  V4L/DVB (8522): videodev2: Fix merge conflict
  V4L/DVB (8532): mxl5007t: remove excessive locks
  V4L/DVB (8531): mxl5007t: move i2c gate handling outside of mutex protected code blocks
  V4L/DVB (8530): au0828: add support for new revision of HVR950Q
  V4L/DVB (8529): mxl5007t: enable _init and _sleep power management functionality
  V4L/DVB (8528): add support for MaxLinear MxL5007T silicon tuner
  V4L/DVB (8526): saa7146: fix VIDIOC_ENUM_FMT
  V4L/DVB (8525): fix a few assorted spelling mistakes.
  ...

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc: Set CONFIG_HAVE_ARCH_TRACEHOOK
  sparc: Add task_pt_regs().
  sparc: Add call to tracehook_signal_handler().
  sparc: Create and use TIF_NOTIFY_RESUME.
  sparc: Use tracehook routines in syscall_trace().
  sparc64: tracehook: CONFIG_HAVE_ARCH_TRACEHOOK
  sparc: Add user_stack_pointer().
  sparc64: tracehook_signal_handler
  sparc64: tracehook: TIF_NOTIFY_RESUME
  sparc: Add asm/syscall.h
  sparc64: tracehook syscall
  sparc: enable headers_export again
  sparc, sparc64: use arch/sparc/include

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  net: missing bits of net-namespace / sysctl
  ipcomp: Fix warnings after ipcomp consolidation.
  dccp: Add check for truncated ICMPv6 DCCP error packets
  dccp: Fix incorrect length check for ICMPv4 packets
  dccp: Add check for sequence number in ICMPv6 message
  dccp: Fix sequence number check for ICMPv4 packets
  dccp: Bug-Fix - AWL was never updated
  dccp: Allow to distinguish original and retransmitted packets

Add git pull command info and diffstat summary info so that we don't
have to search email archives for it repeatedly.
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Noticed because of this warning:

  drivers/base/memory.c:279: warning: initialization from incompatible pointer type
Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

pm_idle_save resp. pm_idle_old can be NULL when the restore code in
acpi_processor_cst_has_changed() resp. cpuidle_uninstall_idle_handler()
is called. This can set pm_idle unconditinally to NULL, which causes the
kernel to panic when calling pm_idle in the x86 idle code. This was
covered by an extra check for !pm_idle in the x86 idle code, which was
removed during the x86 idle code refactoring.

Instead of restoring the pm_idle check in the x86 code prevent the
acpi/cpuidle code to set pm_idle to NULL.

Reported by: Dhaval Giani http://lkml.org/lkml/2008/7/2/309
Based on a debug patch from Ingo Molnar
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

* 'i2c-for-linus' of git://aeryn.fluff.org.uk/bjdooks/linux:
  i2c: Blackfin I2C Driver: Functional power management support
  i2c: Documentation: upgrading clients HOWTO
  i2c: S3C24XX I2C frequency scaling support.
  i2c: i2c_gpio: keep probe resident for hotplugged devices.
  i2c: S3C2410: Pass the I2C bus number via drivers platform data

ipwireless: Preallocate received packet buffers with MRU size

Packets are assembled from link size (~300 bytes) up to PPP MRU
(1500 by default). Try to preallocate full size rather than
repeatedly advance buffer size by 256 bytes.
Signed-off-by: NDavid Sterba <dsterba@suse.cz>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

ipwireless: Put packets to pool start

Put packets to pool start, try to reuse cached memory.
Signed-off-by: NDavid Sterba <dsterba@suse.cz>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

ipwireless: Increase PPP outgoing queue size

Increase default size of PPP outgoing queue. Currently set to 1, which
means that a packet quickly following another pushed by PPP must wait
until hardware actually sends the previous and PPP has to be waken up
by ppp_wakeup(). This slows down upstream.

Now PPP can push more packets at once which get buffered inside driver
and pushed immediatelly to hardware when previous packet is out.

Experiments show that size = 10 is quite good for all connection types
(GPRS/EDGE/UMTS) and gains 4 KB/sec of upload for UMTS for batch uploads.
Need for higher queue size than 10 occures in only < 0.1 % of cases.
Signed-off-by: NDavid Sterba <dsterba@suse.cz>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

ipwireless: Explicitly request io and mem regions

Documentation/pcmcia/driver-changes.txt says, that driver should call request_region
for used memory/io regions since PCMCIA does not do this (since 2.6.8).
Signed-off-by: NDavid Sterba <dsterba@suse.cz>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

ipwireless: Constify buffer variables
Signed-off-by: NDavid Sterba <dsterba@suse.cz>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

ipwireless: Do not return value from sending funcs

Do not return value from do_send_fragment and do_send_packet, it's not used.
The packet size checks are not useful too:

* zero length packet will never be sent, caller always passes packet_header
  size which is either 1 or 3
* MTU check is done in caller, no need to repeat
Signed-off-by: NDavid Sterba <dsterba@suse.cz>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

ipwireless: Remove endian-dependent bitfields

Remove endian-dependent bitfields and use bitmasks to transform
packet header bitfields from/to machine order.
Signed-off-by: NDavid Sterba <dsterba@suse.cz>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

ipwireless: Glue splitted printk strings back
Signed-off-by: NDavid Sterba <dsterba@suse.cz>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

ipwireless: Remove pt_regs from interrupt handler
Signed-off-by: NDavid Sterba <dsterba@suse.cz>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

ipwireless: Rename spinlock variables to lock
Signed-off-by: NDavid Sterba <dsterba@suse.cz>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

ipwireless: Remove unused defines

Remove unused defines, defines hiding variables, defines hiding 0.
Signed-off-by: NDavid Sterba <dsterba@suse.cz>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

ipwireless: Misc cleanups

- remove likely() and some extra () in ifs
- use unsigned in for loops
- remove useless typecasts
- remove obvious comments
- add () around ?:
Signed-off-by: NDavid Sterba <dsterba@suse.cz>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

PM_SUSPEND_MEM: Blackfin does not maintain register state through
Hibernate. Save and restore peripheral base initialization during
PM transitions.
Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NBryan Wu <cooloney@kernel.org>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Add a document describing how i2c clients on Linux 2.6 can be
moved from the old to the new driver model.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Add support for CPU frequency scaling to the S3C24XX I2C driver.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Change the i2c_gpio driver to use platform_driver_register()
instead of platform_driver_probe() to ensure that is can
attach to any devices that may be loaded after it has initialised.
Acked-by: NHaavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: NBen Dooks <ben-linux@fluff.org>

Allow the platform data to specify the bus bumber that the
new I2C bus will be given. This is to allow the use of the
board registration mechanism to specify the new style of
I2C device registration which allows boards to provide a
list of attached devices.

Note, as discussed on the mailing list, we have dropped
backwards compatibility of adding an dynamic bus number
as it should not affect most boards to have the bus pinned
to 0 if they have either not specified platform data for
driver. Any board supplying platform data will automatically
have the bus_num field set to 0, and anyone who needs the
driver on a different bus number can supply platform data
to set bus_num.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>