Commit graph

101415 commits

Author SHA1 Message Date
Devin Heitmueller
b38cc64200 V4L/DVB (8011): em28xx: enable DVB for HVR-900
em28xx-cards.c
 - DVB support is supposed to be enabled for the first generation HVR-900.
   This device was confirmed with DVB by mkrufky when we did the original work
   in April, but I guess we forgot to set the flag.

Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26 15:58:43 -03:00
Devin Heitmueller
0367ca1bc7 V4L/DVB (8010): em28xx: Properly register extensions for already attached devices
em28xx-video.c
 - Properly handle loading of the module when multiple devices are already
   connected (such as at bootup).  Before we were only calling dvb_init()
   against the last device in the list, so while we were handling subsequent
   adds properly, if there were multiple devices present on driver load,
   everybody except the last device would not get initialized.

Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26 15:58:42 -03:00
Hans Verkuil
d3d9b803ee V4L/DVB (8008): cx18: remove duplicate audio and video input enums
cx18-cards.h had a copy of the audio and video input enums
from cx18-av-core.h, but with different prefixes. Removed
that copy and used the ones from cx18-av-core.h.

Thanks to Andy Walls <awalls@radix.net> for the report.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26 15:58:42 -03:00
Hans Verkuil
45270a1531 V4L/DVB (8007): cx18/cx25840: the S-Video LUMA input can use all In1-In8 inputs
The S-Video LUMA input was restricted to the In1-In4 inputs, but it
turns out that it can use the full range of In1-In8.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26 15:58:42 -03:00
Mauro Carvalho Chehab
bf67cac131 V4L/DVB (8005): Fix OOPS if frontend is null
Thanks to timf <timf@iinet.net.au> and Mike Galbraith <efault@gmx.de> to report
this issue.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26 15:58:41 -03:00
Mauro Carvalho Chehab
fde60748d2 V4L/DVB (8004): Fix INPUT dependency at budget-ci
As reported by Ingo Molnar:
MODPOST 346 modules
ERROR: "input_free_device" [drivers/media/dvb/ttpci/budget-ci.ko] undefined!
ERROR: "input_register_device" [drivers/media/dvb/ttpci/budget-ci.ko] undefined!
ERROR: "input_allocate_device" [drivers/media/dvb/ttpci/budget-ci.ko] undefined!
ERROR: "input_unregister_device" [drivers/media/dvb/ttpci/budget-ci.ko] undefined!
ERROR: "input_event" [drivers/media/common/ir-common.ko] undefined!

This occurs when:

CONFIG_INPUT=n
CONFIG_VIDEO_IR=m
CONFIG_DVB_BUDGET_CI=m

Thanks-to: Ingo Molnar <mingo@elte.hu>

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-06-26 15:58:41 -03:00
Daniel J Blueman
0b1faeef5f x86: section/warning fixes
WARNING: arch/x86/mm/built-in.o(.text+0x3a1): Section mismatch in
reference from the function set_pte_phys() to the function
.init.text:spp_getpage()
The function set_pte_phys() references
the function __init spp_getpage().
This is often because set_pte_phys lacks a __init
annotation or the annotation of spp_getpage is wrong.

arch/x86/mm/init_64.c: In function 'early_memtest':
arch/x86/mm/init_64.c:520: warning: passing argument 2 of
'find_e820_area_size' from incompatible pointer type

Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com>
Cc: "Linus Torvalds" <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-26 15:33:09 +02:00
Pavel Machek
fa3d319ac6 pci-gart_64.c: could we get better explanation?
Add better explanation to pci-gart.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Cc: Dave Jones <davej@codemonkey.org.uk>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Trivial patch monkey <trivial@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-26 15:17:18 +02:00
Max Asbock
41aefdcc98 x86: shift bits the right way in native_read_tscp
native_read_tscp shifts the bits in the high order value in the
wrong direction, the attached patch fixes that.

Signed-off-by: Max Asbock <masbock@linux.vnet.ibm.com>
Acked-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-26 14:49:17 +02:00
Jens Axboe
15c8b6c1aa on_each_cpu(): kill unused 'retry' parameter
It's not even passed on to smp_call_function() anymore, since that
was removed. So kill it.

Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-06-26 11:24:38 +02:00
Jens Axboe
8691e5a8f6 smp_call_function: get rid of the unused nonatomic/retry argument
It's never used and the comments refer to nonatomic and retry
interchangably. So get rid of it.

Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-06-26 11:24:35 +02:00
Jens Axboe
490f5de52a sh: convert to generic helpers for IPI function calls
This converts sh to use the new helpers for smp_call_function() and
friends, and adds support for smp_call_function_single(). Not tested,
but it compiles.

Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-06-26 11:22:58 +02:00
Jens Axboe
dbcf4787d8 parisc: convert to generic helpers for IPI function calls
This converts parisc to use the new helpers for smp_call_function() and
friends, and adds support for smp_call_function_single(). Tested by
Kyle, seems to work.

Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-06-26 11:22:57 +02:00
Jens Axboe
2f304c0a0a mips: convert to generic helpers for IPI function calls
This converts mips to use the new helpers for smp_call_function() and
friends, and adds support for smp_call_function_single(). Not tested,
but it compiles.

mips shares the same IPI for smp_call_function() and
smp_call_function_single(), since not all mips platforms have enough
available IPIs to support seperate setups.

Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-06-26 11:22:57 +02:00
Jens Axboe
7b7426c8a6 m32r: convert to generic helpers for IPI function calls
This converts m32r to use the new helpers for smp_call_function() and
friends, and adds support for smp_call_function_single(). Not tested,
not even compiled.

Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-06-26 11:22:57 +02:00
Jens Axboe
f6dd9fa5a7 arm: convert to generic helpers for IPI function calls
This converts arm to use the new helpers for smp_call_function() and
friends, and adds support for smp_call_function_single().

Fixups and testing done by Catalin Marinas <catalin.marinas@arm.com>

Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-06-26 11:22:57 +02:00
Jens Axboe
c524a1d891 alpha: convert to generic helpers for IPI function calls
This converts alpha to use the new helpers for smp_call_function() and
friends, and adds support for smp_call_function_single().

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-06-26 11:22:57 +02:00
Jens Axboe
f27b433ef3 ia64: convert to generic helpers for IPI function calls
This converts ia64 to use the new helpers for smp_call_function() and
friends, and adds support for smp_call_function_single().

Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-06-26 11:22:30 +02:00
Jens Axboe
b7d7a2404f powerpc: convert to generic helpers for IPI function calls
This converts ppc to use the new helpers for smp_call_function() and
friends, and adds support for smp_call_function_single().

ppc loses the timeout functionality of smp_call_function_mask() with
this change, as the generic code does not provide that.

Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-06-26 11:22:13 +02:00
Jens Axboe
3b16cf8748 x86: convert to generic helpers for IPI function calls
This converts x86, x86-64, and xen to use the new helpers for
smp_call_function() and friends, and adds support for
smp_call_function_single().

Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-06-26 11:21:54 +02:00
Jens Axboe
3d44223327 Add generic helpers for arch IPI function calls
This adds kernel/smp.c which contains helpers for IPI function calls. In
addition to supporting the existing smp_call_function() in a more efficient
manner, it also adds a more scalable variant called smp_call_function_single()
for calling a given function on a single CPU only.

The core of this is based on the x86-64 patch from Nick Piggin, lots of
changes since then. "Alan D. Brunelle" <Alan.Brunelle@hp.com> has
contributed lots of fixes and suggestions as well. Also thanks to
Paul E. McKenney <paulmck@linux.vnet.ibm.com> for reviewing RCU usage
and getting rid of the data allocation fallback deadlock.

Acked-by: Ingo Molnar <mingo@elte.hu>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-06-26 11:21:34 +02:00
Paul E. McKenney
0729fbf3bc rcu: make rcutorture even more vicious: invoke RCU readers from irq handlers (timers)
This patch allows torturing RCU from irq handlers (timers, in this case).
A new module parameter irqreader enables such additional torturing,
and is enabled by default.  Variants of RCU that do not tolerate readers
being called from irq handlers (e.g., SRCU) ignore irqreader.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: josh@freedesktop.org
Cc: dvhltc@us.ibm.com
Cc: niv@us.ibm.com
Cc: dino@in.ibm.com
Cc: akpm@linux-foundation.org
Cc: torvalds@linux-foundation.org
Cc: vegard.nossum@gmail.com
Cc: adobriyan@gmail.com
Cc: oleg@tv-sign.ru
Cc: bunk@kernel.org
Cc: rjw@sisk.pl
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-26 09:24:33 +02:00
Ingo Molnar
9a13150109 Merge commit 'v2.6.26-rc8' into core/rcu 2008-06-26 09:24:23 +02:00
Jarkko Nikula
90b9e47671 ALSA: ASoC: Add digital mic configuration to N810 machine driver
Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-06-26 09:02:25 +02:00
Jarkko Nikula
ee15ffdb14 ALSA: ASoC: TLV320AIC3X: Add support for digital microphone input
AIC33 and AIC34 codecs in TLV320AIC3x family support digital microphone
input. When enabled, the codec ADC takes bitstream input to low-pass
filter from GPIO2 instead of its own delta-sigma modulator while providing
oversampling clock through GPIO1.

Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-06-26 09:02:21 +02:00
Jarkko Nikula
81971a1494 ALSA: ASoC: TLV320AIC3X: Modify only interface related bits in aic3x_set_dai_fmt
Those two serial data interface control register bits have also other
functions and they can be set before aic3x_set_dai_fmt is called.

Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-06-26 09:02:17 +02:00
Jarkko Nikula
0bd72a3d49 ALSA: ASoC: TLV320AIC3X: Use register modifier widget for mic bias
Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-06-26 09:02:13 +02:00
Jarkko Nikula
e2be2ccf94 ALSA: ASoC: Add support for generic DAPM register modifier widget
This generic register modifier widget is for updating multiple codec
register bits at once when the widget changes its power state.

Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-06-26 09:02:10 +02:00
Mark Brown
a5c95e90c1 ALSA: ASoC: Replace custom debug macros with pr_ equivalents
Several ASoC codec drivers use custom macros equivalent to the standard
pr_ macros, most of which are not actually used. Replace these custom
macros with the standard ones.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-06-26 09:02:05 +02:00
Richard Purdie
796d2ca848 ALSA: ASoC: Add AK4535 driver
The AK4535 codec is included in some HP iPAQ systems.

This driver was originally written by Richard Purdie and with some bug
fixes from Milan Plzik.  While out of tree it has also had some
mechanical updates for new APIs and current best practices from Liam
Girdwood, Graeme Gregory and Mark Brown.

Signed-off-by: Richard Purdie <richard@openedhand.com>
Signed-off-by: Milan Plzik <milan.plzik@gmail.com>
Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: Graeme Gregory <gg@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-06-26 09:01:58 +02:00
Andreas Mohr
627d3e7abc ALSA: PCI168 snd-azt3328: some more fixups
- fix problem with codec register 0x6a being write-only
  by adding a software shadow register
  (caused annoying noise after module loading due to _toggling_
  between gameport and audio bits instead of configuring them properly)
- rename several "Wave" mixer controls to "PCM", since this is
  what Wine and several other apps are looking for (IOW, _requiring_)
  and this is what AC97 specs use as naming, too,
  thus I'd guess it's what these controls are
- cleanup, small optimizations

Signed-off-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-06-26 09:01:47 +02:00
Pierre Ossman
981bcead3f ALSA: trident - pause s/pdif output
Stop the S/PDIF DMA engine and output when the device is told to pause.
It will keep on looping the current buffer contents if this isn't done.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Tested-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-06-26 09:01:38 +02:00
Travis Place
1d11604eeb ALSA: hda - Added SSID for 'Fujitsu Siemens Amilo M1451G' laptop
Add the SSID for the "Fujitsu Siemens Amilo M1451G" laptop to
patch_realtek.c , so that it uses ALC880_FUJITSU by default.

Signed-off-by: Travis Place <wishie@wishie.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-06-26 09:01:26 +02:00
Travis Place
3e0e469fa2 ALSA: hda - Added model selection for iMac 24"
Added the SSID of a known iMac 24" to automatically use
ALC885_IMAC24 quirk.

Signed-off-by: Travis Place <wishie@wishie.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-06-26 09:01:18 +02:00
Jaroslav Kysela
eabe3228a8 [ALSA] Revert "alsa: add annotations to bitwise type snd_pcm_hw_param_t"
This reverts commit 36b34d2437104f323e09d7c6af6451d3c0b9c0cd.

From: Al Viro <viro@ZenIV.linux.org.uk>

WIW, *all* this stuff is not bitwise at all.  For crying out loud, half
of these types are routinely used as array indices and loop variables...

If anything, we want a different set of allowed operations - subtraction
between elements of type (yielding integer), addition/subtraction of
integer types not bigger than ours (yielding our type), comparisons,
assignments (=, +=, -=, passing to function as argument, return from
function, initializers) and second/third arguments in ?:.  With 0 *not*
being allowed as a constant of such type.

It's not bitwise; we may use the same infrastructure in sparse, but it
should be a separate class of types (__attribute__((affine))).

dma_addr_t is another candidate for the same treatment, but there we'll
need helpers for conversions to hw-acceptable form (dma_to_le32(), etc.)
and gradual conversion of drivers.

ALSA ones and pm mess are absolutely straightforward cases, though.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-06-26 08:53:05 +02:00
Len Brown
c4e6a2e64e Merge branches 'release', 'acpi_disabled' and 'bugzilla-10958' into release 2008-06-26 01:56:35 -04:00
Len Brown
816c2eda3c dock: bay: Don't call acpi_walk_namespace() when ACPI is disabled.
Signed-off-by: Len Brown <len.brown@intel.com>
2008-06-26 01:55:27 -04:00
Vegard Nossum
4389ed2ff6 ACPI: don't walk tables if ACPI was disabled
Ingo Molnar wrote:
> -tip auto-testing started triggering this spinlock corruption message
> yesterday:
>
> [    3.976213] calling  acpi_rtc_init+0x0/0xd3
> [    3.980213] ACPI Exception (utmutex-0263): AE_BAD_PARAMETER, Thread F7C50000 could not acquire Mutex [3] [20080321]
> [    3.992213] BUG: spinlock bad magic on CPU#0, swapper/1
> [    3.992213]  lock: c2508dc4, .magic: 00000000, .owner: swapper/1, .owner_cpu: 0

This is apparently because some parts of ACPI, including mutexes, are not
initialized when acpi=off is passed to the kernel.

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-06-26 01:55:18 -04:00
Rene Herman
16d7523973 thermal: Create CONFIG_THERMAL_HWMON=n
A bug in libsensors <= 2.10.6 is exposed
when this new hwmon I/F is enabled.
Create CONFIG_THERMAL_HWMON=n
until some time after libsensors 2.10.7 ships
so those users can run the latest kernel.

libsensors 3.x is already fixed -- those users
can use CONFIG_THERMAL_HWMON=y now.

Signed-off-by: Rene Herman <rene.herman@gmail.com>
Acked-by: Mark M. Hoffman <mhoffman@lightlink.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-06-25 19:25:42 -04:00
Jaya Kumar
9e6c29768f [ARM] 5117/1: pxafb: fix __devinit/exit annotations
This patch fixes pxafb's init/exit annotations. It uses __devinit/exit for
probe functions and __init for init functions. g_options is left as
__devinitdata since it is used by both.

Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Acked-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-06-25 18:50:14 +01:00
James Bottomley
ec5e69f6d3 [SCSI] esp: tidy up target reference counting
The esp driver currently does hand rolled reference counting of its
target.  It's much easier to do what it needs to do if it's plugged into
the mid-layer callbacks (target_alloc and target_destroy) which were
designed for this case, so do it this way and get rid of the internal
target reference count.

Acked-by: David S. Miller <davem@davemloft.net>
Cc: Stable Tree <stable@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-06-25 12:36:13 -05:00
Ron Rindjunsky
66b5004d85 iwlwifi: improve scanning band selection management
This patch modifies the band selection management when scanning, so
bands are now scanned according to HW band support.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-25 10:57:03 -04:00
Ivo van Doorn
99ade2597e rt2x00: Fix unbalanced mutex locking
The usb_cache_mutex was not correctly released
under all circumstances. Both rt73usb as rt2500usb
didn't release the mutex under certain conditions
when the register access failed. Obviously such
failure would lead to deadlocks.

In addition under similar circumstances when the
bbp register couldn't be read the value must be
set to 0xff to indicate that the value is wrong.
This too didn't happen under all circumstances.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-25 10:56:16 -04:00
Michael Buesch
2f9ec47d09 b43legacy: Fix possible NULL pointer dereference in DMA code
This fixes a possible NULL pointer dereference in an error path of the
DMA allocation error checking code. This is also necessary for a future
DMA API change that is on its way into the mainline kernel that adds
an additional dev parameter to dma_mapping_error().

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Cc: stable <stable@kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-25 10:56:16 -04:00
Michael Buesch
7b3abfc87e b43: Fix possible MMIO access while device is down
This fixes a possible MMIO access while the device is still down
from a suspend cycle. MMIO accesses with the device powered down
may cause crashes on certain devices.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-25 10:55:09 -04:00
Michael Buesch
664f200610 b43legacy: Do not return TX_BUSY from op_tx
Never return TX_BUSY from op_tx. It doesn't make sense to return
TX_BUSY, if we can not transmit the packet.
Drop the packet and return TX_OK.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-25 10:55:09 -04:00
Michael Buesch
c9e8eae093 b43: Do not return TX_BUSY from op_tx
Never return TX_BUSY from op_tx. It doesn't make sense to return
TX_BUSY, if we can not transmit the packet.
Drop the packet and return TX_OK.
This will fix the resume hang.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-25 10:51:51 -04:00
Tony Vroon
59d393ad92 mac80211: implement EU regulatory domain
Implement missing EU regulatory domain for mac80211. Based on the
information in IEEE 802.11-2007 (specifically pages 1142, 1143 & 1148)
and ETSI 301 893 (V1.4.1).
With thanks to Johannes Berg.

Signed-off-by: Tony Vroon <tony@linx.net>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-06-25 10:31:29 -04:00
Jeremy Fitzhardinge
400d34944c xen: add mechanism to extend existing multicalls
Some Xen hypercalls accept an array of operations to work on.  In
general this is because its more efficient for the hypercall to the
work all at once rather than as separate hypercalls (even batched as a
multicall).

This patch adds a mechanism (xen_mc_extend_args()) to allocate more
argument space to the last-issued multicall, in order to extend its
argument list.

The user of this mechanism is xen/mmu.c, which uses it to extend the
args array of mmu_update.  This is particularly valuable when doing
the update for a large mprotect, which goes via
ptep_modify_prot_commit(), but it also manages to batch updates to
pgd/pmds as well.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-25 15:17:34 +02:00
Jeremy Fitzhardinge
e57778a1e3 xen: implement ptep_modify_prot_start/commit
Xen has a pte update function which will update a pte while preserving
its accessed and dirty bits.  This means that ptep_modify_prot_start() can be
implemented as a simple read of the pte value.  The hardware may
update the pte in the meantime, but ptep_modify_prot_commit() updates it while
preserving any changes that may have happened in the meantime.

The updates in ptep_modify_prot_commit() are batched if we're currently in lazy
mmu mode.

The mmu_update hypercall can take a batch of updates to perform, but
this code doesn't make particular use of that feature, in favour of
using generic multicall batching to get them all into the hypervisor.

The net effect of this is that each mprotect pte update turns from two
expensive trap-and-emulate faults into they hypervisor into a single
hypercall whose cost is amortized in a batched multicall.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-25 15:17:23 +02:00