Commit Graph

131185 Commits

Author SHA1 Message Date
Steven Rostedt
e3944bfac9 tracing, x86: fix fixup section to return to original code
Impact: fix to prevent a kernel crash on fault

If for some reason the pointer to the parent function on the
stack takes a fault, the fix up code will not return back to
the original faulting code. This can lead to unpredictable
results and perhaps even a kernel panic.

A fault should not happen, but if it does, we should simply
disable the tracer, warn, and continue running the kernel.
It should not lead to a kernel crash.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
2009-02-10 13:07:13 -05:00
Hugh Dickins
acd895795d profiling: fix broken profiling regression
Impact: fix broken /proc/profile on UP machines

Commit c309b917ca "cpumask: convert
kernel/profile.c" broke profiling.  prof_cpu_mask was previously
initialized to CPU_MASK_ALL, but left uninitialized in that commit.
We need to copy cpu_possible_mask (cpu_online_mask is not enough).

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-02-10 00:50:37 +01:00
Linus Torvalds
4c098bcd55 Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
  Btrfs: don't use spin_is_contended
2009-02-09 14:00:16 -08:00
Linus Torvalds
d006b2b620 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
  USB: Storage: Update unusual_devs entry for Datafab KECF-USB
  USB: Correct Makefile to make isp1760 buildable
  USB: option: New mobile broadband modems to be supported
  USB: two more usb ids for ti_usb_3410_5052
  USB: ftdi_sio: unlock_kernel() on error in set_serial_info()
  USB: usb-storage: add Pentax to the bad-vendor list
  USB: ftdi_sio: add support for the NDI Polaris system
  USB: usb-serial: fix the aircable_init failure path
  USB: usb-storage: remove WARN from last-sector hacks
  Revert USB: option: add Pantech cards
  USB: cdc-acm.c: remove duplicate lines for MTK gps support
  USB: fsl_qe_udc: Fix stalled TX requests bug
  USB: fsl_qe_udc: Fix muram corruption by disabled endpoints
  USB: fsl_qe_udc: Fix disconnects reporting during bus reset
  USB: fsl_qe_udc: Fix QE USB controller initialization
  USB: fsl_qe_udc: Fix recursive locking bug in ch9getstatus()
  USB: fsl_qe_udc: Fix oops on QE UDC probe failure
2009-02-09 13:59:51 -08:00
Linus Torvalds
7d1676629e 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:
  Staging: panel: fix lcd panel driver build failure
  Staging: android: fix up units in timed_gpio
  Staging: android: ram_console: Disable ECC when early init is enabled and validate buffer size
  Staging: at76_usb: Add support for OQO Model 01+
  Staging: at76_usb: fix bugs introduced by "Staging: at76_usb: cleanup dma on stack issues"
  Revert Staging: at76_usb: update drivers/staging/at76_usb w/ mac80211 port
2009-02-09 13:58:40 -08:00
Linus Torvalds
6707fbb56c Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] powernow-k8: Get transition latency from ACPI _PSS table
  [CPUFREQ] Make ignore_nice_load setting of ondemand work as expected.
2009-02-09 13:58:22 -08:00
Chris Mason
284b066af4 Btrfs: don't use spin_is_contended
Btrfs was using spin_is_contended to see if it should drop locks before
doing extent allocations during btrfs_search_slot.  The idea was to avoid
expensive searches in the tree unless the lock was actually contended.

But, spin_is_contended is specific to the ticket spinlocks on x86, so this
is causing compile errors everywhere else.

In practice, the contention could easily appear some time after we started
doing the extent allocation, and it makes more sense to always drop the lock
instead.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2009-02-09 16:22:03 -05:00
Sachin P. Sant
6136ac86b7 Staging: panel: fix lcd panel driver build failure
* Fix build break for lcd panel driver.

Signed-off-by : Sachin Sant <sachinp@in.ibm.com>
Cc: Willy Tarreau <w@1wt.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:26:18 -08:00
Greg Kroah-Hartman
d88dfb8dc4 Staging: android: fix up units in timed_gpio
The last build fix I did messed up the units of the sysfs file.

This puts them back to be milliseconds, like they originally were.


Thanks to Juha Motorsportcom for pointing this out.

Reported-by: Juha Motorsportcom <juha_motorsportcom@luukku.com>
Cc: Mike Lockwood <lockwood@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:26:18 -08:00
Arve Hjønnevåg
5701c0519b Staging: android: ram_console: Disable ECC when early init is enabled and validate buffer size
Signed-off-by: Arve Hjønnevåg <arve@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:26:18 -08:00
Jamie Lentin
07f269862a Staging: at76_usb: Add support for OQO Model 01+
Add USB device ID for OQO 01+'s internal wireless LAN

An OQO employee mentions the chip's true identity here:-
   ftp://ftp.oqo.com/unsupported/linux/OQOLinux.html

Signed-off-by: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:26:18 -08:00
Jason Andryuk
ea8f9fe634 Staging: at76_usb: fix bugs introduced by "Staging: at76_usb: cleanup dma on stack issues"
Tracking down the firmware loading problem led to this commit.

$ git bisect bad
0d1d142433 is first bad commit
commit 0d1d142433
Author: Oliver Neukum <oliver@neukum.org>
Date:   Thu Dec 18 13:16:40 2008 +0100

    Staging: at76_usb: cleanup dma on stack issues

    - no DMA on stack
    - cleanup unclear endianness issue

    Signed-off-by: Oliver Neukum <oneukum@suse.de>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

:040000 040000 c4fee9ea0f
8b165a35d1 M	drivers

The "no DMA on stack" conversion was incomplete with respect to
updating the arguments passed to usb_control_msg.  The value 40 is
hardcoded as it was prior to conversion.

The driver can now load firmware, but is not fully functional.

Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Cc: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:26:18 -08:00
Greg Kroah-Hartman
89cb7e7fd6 Revert Staging: at76_usb: update drivers/staging/at76_usb w/ mac80211 port
Reverts 02227c2839
(Had to be done by hand due to other patches that had come after this.)

Turns out that we don't want the mac80211 port of this driver just yet, as
there is a different driver working on adding this support.

So keep things old and different for now.

This is being reverted at the request of the linux-wireless developers.

Cc: Kalle Valo <kalle.valo@iki.fi>
Cc: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:26:17 -08:00
Nick Holloway
049a6acb50 USB: Storage: Update unusual_devs entry for Datafab KECF-USB
This device suffers from the off-by-one error when reporting the capacity,
so add US_FL_FIX_CAPACITY to the existing entry.

Signed-off-by: Nick Holloway <Nick.Holloway@pyrites.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:19:49 -08:00
Ivan Kuten
26e1287594 USB: Correct Makefile to make isp1760 buildable
Signed-off-by: Ivan Kuten <ivan.kuten@promwad.com>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:19:49 -08:00
Dirk De Schepper
c200b9c9e8 USB: option: New mobile broadband modems to be supported
- New Novatel and Dell mobile broadband modem products added
 - Dell pid variables used in stead of numerical PIDs for known
   products

Signed-off-by: Dirk De Schepper <ddeschepper@nvtl.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Matthias Urlichs <matthias@urlichs.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:19:48 -08:00
Oliver Neukum
97dcf0416e USB: two more usb ids for ti_usb_3410_5052
This patch adds device IDs and balances the counts to make the
hot ID additioning mechanism work.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Cc: stable <stable@kernel.org>
Cc: Chris Adams <cmadams@hiwaay.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:19:48 -08:00
Dan Carpenter
64905b4809 USB: ftdi_sio: unlock_kernel() on error in set_serial_info()
There was one error path where unlock_kernel() wasn't called.

This was found with a code checker (http://repo.or.cz/w/smatch.git/)
Compile tested only, sorry.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:19:48 -08:00
Alan Stern
506e946983 USB: usb-storage: add Pentax to the bad-vendor list
This patch (as1202) adds Pentax to usb-storage's list of bad vendors
whose devices always need the CAPACITY_HEURISTICS flag.  This is in
addition to the existing entries: Nokia, Nikon, and Motorola.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Virgo Pärna <virgo.parna@mail.ee>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:19:48 -08:00
Stephane Clerambault
e38c287447 USB: ftdi_sio: add support for the NDI Polaris system
Add support for the NDI Polaris system *http://www.ndigital.com/).

Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:19:48 -08:00
Dave Young
78c8fb3717 USB: usb-serial: fix the aircable_init failure path
The failure path of aircable_init is wrong, fix the order of (goto) labels.

Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Acked-by: Naranjo Manuel Francisco <naranjo.manuel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:19:48 -08:00
Alan Stern
0d020aae0a USB: usb-storage: remove WARN from last-sector hacks
This patch (as1201) removes the WARN() from the last-sector hacks in
usb-storage, thereby making the code match the version now in
.27-stable and .28-stable.  The WARN() isn't needed, since there is no
longer any intention of assuming that all storage devices have an even
number of sectors, and it annoys users for no good reason.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:19:47 -08:00
Greg Kroah-Hartman
6b40c0057a Revert USB: option: add Pantech cards
Revert 8b6346ec89 as these devices really
work just fine with the cdc-acm driver, as they follow the spec
properly.

Thanks to Chuck Ebbert for pointing out the problem here.

Cc: Chuck Ebbert <cebbert@redhat.com>
Cc: Dan Williams <dcbw@redhat.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:19:47 -08:00
James Treacy
2057ac86da USB: cdc-acm.c: remove duplicate lines for MTK gps support
The same patch to add support for MTK gps loggers was submitted by two
different people and applied twice. Remove the redundant lines.

Signed-off-by: James Treacy <treacy@debian.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:19:47 -08:00
Anton Vorontsov
af3ddbd763 USB: fsl_qe_udc: Fix stalled TX requests bug
While disabling an endpoint the driver nuking any pending requests,
thus completing them with -ESHUTDOWN status. But the driver doesn't
clear the tx_req, which means that a next TX request (after
ep_enable), might get stalled, since the driver won't queue the new
reqests.

This patch fixes a bug I'm observing with ethernet gadget while
playing with ifconfig usb0 up/down (the up/down sequence disables
and enables `in' and `out' endpoints).

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:19:47 -08:00
Anton Vorontsov
82341b3690 USB: fsl_qe_udc: Fix muram corruption by disabled endpoints
Before freeing an endpoint's muram memory, we should stop all activity
of the endpoint, otherwise the QE UDC controller might do nasty things
with the muram memory that isn't belong to that endpoint anymore.

The qe_ep_reset() effectively flushes the hardware fifos, finishes all
late transaction and thus prevents the corruption.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:19:47 -08:00
Anton Vorontsov
ef84e4055f USB: fsl_qe_udc: Fix disconnects reporting during bus reset
Freescale QE UDC controllers can't report the "port change" states,
so the only way to handle disconnects is to process bus reset
interrupts. The bus reset can take some time, that is, few irqs.
Gadgets may print the disconnection events, and this causes few
repetitive messages in the kernel log.

This patch fixes the issue by using the usb_state machine, if the
usb controller has been already reset, just quit the reset irq
early.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:19:47 -08:00
Anton Vorontsov
2247818a32 USB: fsl_qe_udc: Fix QE USB controller initialization
qe_udc_reg_init() leaves the USB controller enabled before muram memory
initialized. Sometimes the uninitialized muram memory confuses the
controller, and it start sending the busy interrupts.

Fix this by disabling the controller, it will be enabled later by
the gadget driver, at bind time.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:19:47 -08:00
Anton Vorontsov
a30551db66 USB: fsl_qe_udc: Fix recursive locking bug in ch9getstatus()
The call chain is this:

qe_udc_irq() <- grabs the udc->lock spinlock
rx_irq()
qe_ep0_rx()
ep0_setup_handle()
setup_received_handle()
ch9getstatus()
qe_ep_queue() <- tries to grab the udc->lock again

It seems unsafe to temporarily drop the lock in the ch9getstatus(),
so to fix that bug the lock-less __qe_ep_queue() function
implemented and used by the ch9getstatus().

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:19:46 -08:00
Anton Vorontsov
94f341db3d USB: fsl_qe_udc: Fix oops on QE UDC probe failure
In case of probing errors the driver kfrees the udc_controller, but it
doesn't set the pointer to NULL.

When usb_gadget_register_driver is called, it checks for udc_controller
!= NULL, the check passes and the driver accesses nonexistent memory.
Fix this by setting udc_controller to NULL in case of errors.

While at it, also implement irq_of_parse_and_map()'s failure and cleanup
cases.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-02-09 11:19:46 -08:00
Linus Torvalds
896abeb743 Merge branch 'for-2.6.29' of git://linux-nfs.org/~bfields/linux
* 'for-2.6.29' of git://linux-nfs.org/~bfields/linux:
  lockd: fix regression in lockd's handling of blocked locks
2009-02-09 10:30:19 -08:00
J. Bruce Fields
9d9b87c121 lockd: fix regression in lockd's handling of blocked locks
If a client requests a blocking lock, is denied, then requests it again,
then here in nlmsvc_lock() we will call vfs_lock_file() without FL_SLEEP
set, because we've already queued a block and don't need the locks code
to do it again.

But that means vfs_lock_file() will return -EAGAIN instead of
FILE_LOCK_DENIED.  So we still need to translate that -EAGAIN return
into a nlm_lck_blocked error in this case, and put ourselves back on
lockd's block list.

The bug was introduced by bde74e4bc6 "locks: add special return
value for asynchronous locks".

Thanks to Frank van Maarseveen for the report; his original test
case was essentially

	for i in `seq 30`; do flock /nfsmount/foo sleep 10 & done

Tested-by: Frank van Maarseveen <frankvm@frankvm.com>
Reported-by: Frank van Maarseveen <frankvm@frankvm.com>
Cc: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
2009-02-09 13:19:46 -05:00
Linus Torvalds
f06da264cf i915: Fix more size_t format string warnings
The DRI people seem to have a hard time getting these right (see also
commit aeb565dfc3).

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-09 08:57:29 -08:00
Linus Torvalds
ff7473300d Merge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/i915: select framebuffer support automatically
  drm/i915: add get_vblank_counter function for GM45
  drm/i915: capture last_vblank count at IRQ uninstall time too
  drm/i915: Unlock mutex on i915_gem_fault() error path
  drm/i915: Quiet the message on get/setparam ioctl with an unknown value.
  drm/i915: skip LVDS initialization on Apple Mac Mini
  drm/i915: sync SDVO code with stable userland modesetting driver
  drm/i915: Unref the object after failing to set tiling mode.
  drm/i915: add fence register management to execbuf
  drm/i915: Return error from i915_gem_object_get_fence_reg() when failing.
  drm/i915: Set up an MTRR covering the GTT at driver load.
  drm/i915: Skip SDVO/HDMI init when the chipset tells us it's not present.
  drm/i915: Suppress GEM teardown on X Server exit in KMS mode.
  drm/radeon: fix ioremap conflict with AGP mappings
  i915: fix unneeded locking in i915 LVDS get modes code.
2009-02-09 08:52:28 -08:00
Linus Torvalds
d7c41b6165 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: scatterwalk - Avoid flush_dcache_page on slab pages
  crypto: shash - Fix tfm destruction
  crypto: api - Fix zeroing on free
  crypto: shash - Fix module refcount
  crypto: api - Fix algorithm test race that broke aead initialisation
2009-02-09 08:52:02 -08:00
David Howells
a8e807f760 FRV: in_interrupt() requires #inclusion of linux/hardirq.h not asm/hardirq.h now
in_interrupt() requires #inclusion of linux/hardirq.h not asm/hardirq.h now.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-09 08:51:35 -08:00
Kyle McMartin
a5ef7ca0e2 x86: spinlocks: define dummy __raw_spin_is_contended
Architectures other than mips and x86 are not using ticket spinlocks.
Therefore, the contention on the lock is meaningless, since there is
nobody known to be waiting on it (arguably /fairly/ unfair locks).

Dummy it out to return 0 on other architectures.

Signed-off-by: Kyle McMartin <kyle@redhat.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-09 08:15:39 -08:00
Herbert Xu
4f3e797ad0 crypto: scatterwalk - Avoid flush_dcache_page on slab pages
It's illegal to call flush_dcache_page on slab pages on a number
of architectures.  So this patch avoids doing so if PageSlab is
true.

In future we can move the flush_dcache_page call to those page
cache users that actually need it.

Reported-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2009-02-09 14:30:25 +11:00
Hugh Dickins
d5b562330e mm: fix error case in mlock downgrade reversion
Commit 27421e211a, Manually revert
"mlock: downgrade mmap sem while populating mlocked regions", has
introduced its own regression: __mlock_vma_pages_range() may report
an error (for example, -EFAULT from trying to lock down pages from
beyond EOF), but mlock_vma_pages_range() must hide that from its
callers as before.

Reported-by: Sami Farin <safari-kernel@safari.iki.fi>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-08 13:53:28 -08:00
Linus Torvalds
8e4921515c Linux 2.6.29-rc4 2009-02-08 12:37:27 -08:00
Linus Torvalds
58edf8ee5e Merge git://git.kernel.org/pub/scm/linux/kernel/git/arjan/linux-2.6-async-update
* git://git.kernel.org/pub/scm/linux/kernel/git/arjan/linux-2.6-async-update:
  async: use list_move_tail
  async: Rename _special -> _domain for clarity.
  async: Add some documentation.
  async: Handle kthread_run() return codes.
  async: Fix running list handling.
2009-02-08 12:35:26 -08:00
Benjamin Herrenschmidt
1fb25cb8b8 radeonfb: Fix resume from D3Cold on some platforms
For historical reason, this driver used its own saving/restoring
of the PCI config space, and used the state of it on resume as
an indication as to whether it needed to re-POST the chip or not.

This methods breaks with the later core changes since the core will
have restored things for us.

This patch fixes it by removing that custom code, using standard
core methods to save/restore state, and testing for the need to
re-POST by comparing the content of a few key PLL registers.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-08 10:48:57 -08:00
Benjamin Herrenschmidt
b746bb7762 aty128fb: Properly save PCI state before changing PCI PM level
This fixes aty128fb to properly save the PCI config space -before- it
potentially switches the PM state of the chip. This avoids a
warning with the new PM core and is the right thing to do anyway.

I also replaced the hand-coded switch to D2 with a call to the
genericc pci_set_power_state() and removed the code that switches it
back to D0 since the generic code is doing that for us nowadays.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-08 10:48:56 -08:00
Benjamin Herrenschmidt
b746816863 atyfb: Properly save PCI state before changing PCI PM level
This fixes atyfb to properly save the PCI config space -before- it
potentially switches the PM state of the chip. This avoids a
warning with the new PM core and is the right thing to do anyway.

I also slightly cleaned up the code that checks whether we are
running on a PowerMac to do a runtime check instead of a compile
check only, and replaced a deprecated number with the proper
symbolic constant.

Finally, I removed the useless switch to D0 from resume since
the core does it for us.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-02-08 10:48:56 -08:00
Stefan Richter
f7de7621f0 async: use list_move_tail
list.h provides a dedicated primitive for
"list_del followed by list_add_tail"... list_move_tail.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2009-02-08 10:00:26 -08:00
Cornelia Huck
766ccb9ed4 async: Rename _special -> _domain for clarity.
Rename the async_*_special() functions to async_*_domain(), which
describes the purpose of these functions much better.
[Broke up long lines to silence checkpatch]

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
2009-02-08 09:56:11 -08:00
Cornelia Huck
f30d5b307c async: Add some documentation.
Add some kerneldoc to the async interface.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
2009-02-08 09:56:11 -08:00
Cornelia Huck
86532d8b16 async: Handle kthread_run() return codes.
If we fail to create the manager thread, fall back to non-fastboot.
If we fail to create an async thread, try again after waiting for
a bit.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
2009-02-08 09:56:10 -08:00
Cornelia Huck
7a89bbc749 async: Fix running list handling.
async_schedule() should pass in async_running as the running
list, and run_one_entry() should put the entry to be run on
the provided running list instead of always on the generic one.

Reported-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
2009-02-08 09:56:10 -08:00
Ingo Molnar
d2f5935770 drm/i915: select framebuffer support automatically
Migration helper.

The i915 driver recently added a 'depends on FB' rule to its
Kconfig entry - which silently turns off DRM_I915 if someone
has a working config but no CONFIG_FB selected, and upgrades
to the latest upstream kernel.

Norbert Preining reported this problem:

   Bug-Entry   : http://bugzilla.kernel.org/show_bug.cgi?id=12599
   Subject     : dri /dev node disappeared with 2.6.29-rc1

So change it to "select FB", which auto-selects framebuffer
support. This way the driver keeps working, regardless of
whether FB was enabled before or not.

Kconfig select's of interactive options can be problematic to
dependencies and can cause build breakages - but in this case
it's safe because it's a leaf entry with no dependencies of its
own.

( There is some minor circular dependency fallout as FB_I810
  and FB_INTEL also used 'depends on FB' constructs - update
  those to "select FB" too. )

Reported-by: Norbert Preining <preining@logic.at>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Dave Airlie <airlied@linux.ie>
2009-02-08 21:53:05 +10:00