Mark Einon [Mon, 20 Feb 2012 22:33:24 +0000 (22:33 +0000)]
staging: et131x: use netif_rx_ni() for packet receive
netif_rx is meant to be called from interrupts because it doesn't wake
up ksoftirqd. For calling from outside interrupts, netif_rx_ni exists.
This stops the error "NOHZ: local_softirq_panding 08" that happens on
some machines with NOHZ and plip --- it is caused by the fact that
softirq is pending and ksoftirqd is sleeping.
Signed-off-by: Mark Einon <mark.einon@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dan Magenheimer [Mon, 20 Feb 2012 16:29:31 +0000 (08:29 -0800)]
staging: ramster: Dont build ramster when CONFIGFS_FS=m
Ramster can't be a module (yet) and depends on CONFIGFS_FS=y, but
allmodconfig builds with CONFIGFS_FS=m, which breaks the build.
And forcing CONFIGFS_FS=y with select breaks the build in other ways.
So just don't build ramster unless CONFIGFS_FS=y.
Also, while we're here, add a comment as to why BROKEN is depended.
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dan Magenheimer [Mon, 20 Feb 2012 16:29:30 +0000 (08:29 -0800)]
staging: ramster: build ramster properly when CONFIG_OCFS2=m|y
Due to some conflicting debug vars, kernel build will warn when
CONFIG_RAMSTER=y and CONFIG_OCFS2=m and will fail when
CONFIG_RAMSTER=y and CONFIG_OCFS2=y (rare).
Rename ramster mlog vars to avoid the name conflict.
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
New kernel developer inspired by the 2010 FOSDEM talk. Running checkpatch on
p80211netdev.c gave the error: p80211netdev.c:153: ERROR: "foo * bar" should
be "foo *bar". Fixed it by doing what was suggested.
Signed-off-by: Sebastiaan de Haan <sebastiaan@sebastiaandehaan.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tomas Winkler [Mon, 20 Feb 2012 12:46:03 +0000 (14:46 +0200)]
staging/mei: mei-amt-version - make all function static and used
This patch eliminates following type of warnings
warning: no previous prototype for '...func...' [-Wmissing-prototypes]
For this is a single file example lets make all API-like functions
be static.
Since all static functions should be used so let's call
to amt_host_if_deinit() even if in this example it's not really necessary
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Acked-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Looks during cleanup we converted type of host_version_supported
member from UINT8 into int instead of u8.
Since we've queried only for boolean value of
this variable the bug wasn't really visible.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jorgyano Vieira [Fri, 17 Feb 2012 23:38:09 +0000 (21:38 -0200)]
Staging: crystalhd: Get rid of unecessary BCMLOG_ENTER macro
The BCMLOG_ENTER macro is used only in five functions, perhaps
it is remainder of debugging some specific problem,
now, this macro don't seems to be useful, so it should be removed.
Chris Kelly [Mon, 20 Feb 2012 21:12:35 +0000 (21:12 +0000)]
staging: ozwpan: Added debug support
Added tracing facilities and also memory allocation and URB tracking.
This is for debugging purposes and is all optional and can be switched
out at compile time.
Signed-off-by: Chris Kelly <ckelly@ozmodevices.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Chris Kelly [Mon, 20 Feb 2012 21:12:27 +0000 (21:12 +0000)]
staging: ozwpan: Added event logging support
The event logging subsystem allows internal events in the driver to
be logged. This facilitates testing the correct operation of the
driver. This subsystem is optional and can be switched out at
compile time.
Signed-off-by: Chris Kelly <ckelly@ozmodevices.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Chris Kelly [Mon, 20 Feb 2012 21:12:17 +0000 (21:12 +0000)]
staging: ozwpan: Added character device support
The character device provides a management interface to the driver
and also provides an additional service to the protocol for side
band communication with the device.
Signed-off-by: Chris Kelly <ckelly@ozmodevices.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Chris Kelly [Mon, 20 Feb 2012 21:11:17 +0000 (21:11 +0000)]
staging: ozwpan: Added driver entry code
This series of patches adds the Ozmo USB over WiFi driver to the
driver staging directory. This is a driver for a virtual USB HCD
and uses an L2 network protocol to talk to the device.
This patch adds the driver entry code and a README file with more
details.
Signed-off-by: Chris Kelly <ckelly@ozmodevices.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jesper Juhl [Sun, 12 Feb 2012 23:15:02 +0000 (00:15 +0100)]
Staging, rtl8192e, softmac: remove redundant memset and fix mem leak
In drivers/staging/rtl8192e/rtllib_softmac.c::rtllib_rx_assoc_resp()
we allocate memory for 'network' with kzalloc() and then proceed to
zero the already zeroed mem we got from kzalloc() with
memset(). That's redundant, so remove the memset()
We also fail to kfree() the memory we allocated for 'network' if we do not enter
if (ieee->current_network.qos_data.supported == 1) {
and the variable then goes out of scope.
To fix that I simply moved the kfree() that was inside that 'if'
statement to instead be just after it. It then covers both the case
where we take the branch and when we don't.
Dan Magenheimer [Wed, 15 Feb 2012 15:54:19 +0000 (07:54 -0800)]
staging: ramster: ramster-specific new files
RAMster implements peer-to-peer transcendent memory, allowing a "cluster"
of kernels to dynamically pool their RAM.
This patch adds new files necessary for ramster support: The file
ramster.h declares externs and some pampd bitfield manipulation. The
file zcache.h declares some zcache functions that now must be accessed
from the ramster glue code. The file r2net.c is the glue between zcache
and the messaging layer, providing routines called from zcache that
initiate messages, and routines that handle messages by calling zcache.
TODO explains future plans for merging.
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dan Magenheimer [Wed, 15 Feb 2012 15:54:18 +0000 (07:54 -0800)]
staging: ramster: ramster-specific changes to zcache/tmem
RAMster implements peer-to-peer transcendent memory, allowing a "cluster"
of kernels to dynamically pool their RAM.
This patch incorporates changes transforming zcache to work with
a remote store.
In tmem.[ch], new "repatriate" (provoke async get) and "localify" (handle
incoming data resulting from an async get) routines combine with a handful
of changes to existing pamops interfaces allow the generic tmem code
to support asynchronous operations. Also, a new tmem_xhandle struct
groups together key information that must be passed to remote tmem stores.
Zcache-main.c is augmented with a large amount of ramster-specific code
to handle remote operations and "foreign" pages on both ends of the
"remotify" protocol. New "foreign" pools are auto-created on demand.
A "selfshrinker" thread periodically repatriates remote persistent pages
when local memory conditions allow. For certain operations, a queue is
necessary to guarantee strict ordering as out-of-order puts/flushes can
cause strange race conditions. Pampd pointers now either point to local
memory OR describe a remote page; to allow the same 64-bits to describe
either, the LSB is used to differentiate. Some acrobatics must be performed
to ensure local memory is available to handle a remote persistent get,
or deal with the data directly anyway if the malloc failed. Lots
of ramster-specific statistics are available via sysfs.
Note: Some debug ifdefs left in for now. Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dan Magenheimer [Wed, 15 Feb 2012 15:54:17 +0000 (07:54 -0800)]
staging: ramster: xvmalloc allocation files
RAMster implements peer-to-peer transcendent memory, allowing a "cluster"
of kernels to dynamically pool their RAM.
Zcache is in the process of converting allocators, from xvmalloc to zsmalloc.
Further, RAMster V5 testing to date has been done only with xvmalloc.
To avoid merging problems, a linux-3.2 copy of xvmalloc is incorporated by
this patch. Later patches will be able to eliminate xvmalloc and use zsmalloc.
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dan Magenheimer [Wed, 15 Feb 2012 15:54:16 +0000 (07:54 -0800)]
staging: ramster: local compression + tmem
RAMster implements peer-to-peer transcendent memory, allowing a "cluster"
of kernels to dynamically pool their RAM.
This patch copies files from drivers/staging/zcache. RAMster compresses
pages locally before transmitting them to another node, so we can
leverage the zcache and tmem code directly. Note: there are
no ramster-specific changes yet to these files.
(Why copy? The ramster tmem.c/tmem.h changes are definitely shareable
between zcache and ramster; the eventual destination for tmem.c
is the linux lib directory. Ramster changes to zcache are more substantial
and zcache is currently undergoing some significant unrelated changes
(including a new allocator and breaking zcache-main.c into smaller files),
so it seemed best to branch temporarily and merge later.)
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Dan Magenheimer [Wed, 15 Feb 2012 15:54:15 +0000 (07:54 -0800)]
staging: ramster: cluster/messaging foundation
RAMster implements peer-to-peer transcendent memory, allowing a "cluster"
of kernels to dynamically pool their RAM.
This patch provides the cluster and messaging foundation for RAMster,
implementing the basic cluster discovery, mapping, heartbeat / keepalive,
and messaging ("r2net") that RAMster requires for internode communication.
This code heavily leverages code from the ocfs2 cluster layer but
has been extended, interfaces to userland changed, and external functions
renamed so that RAMster and ocfs2 can co-exist in the kernel and userland.
Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There are two members of pr_ctxt allocated during bridge_open that
are never freed resulting in memory leaks, these are stream_id and
node_id, they are now freed on release of the handle (bridge_release)
right before freeing pr_ctxt.
Error path for bridge_open was also fixed since the same variables
could result in memory leaking due to missing handling of failure
scenarios. While at it, the indentation changes were introduced to
avoid interleaved goto statements inside big if blocks.
Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Kevin McKinney [Mon, 13 Feb 2012 03:24:53 +0000 (22:24 -0500)]
Staging: bcm: Move directives for the preprocessor statement to enum value in led_control.h
DRIVER_HALT is a driver state that was originally
defined as a #define statement. This patch moves
it to the LedEvents type as an enumerated
value for the purpose of removing a compile time warning:
drivers/staging/bcm/led_control.c: In function ‘LEDControlThread’:
drivers/staging/bcm/led_control.c:817:3: warning: case value ‘255’ not in enumerated type ‘LedEventInfo_t’ [-Wswitch]
Signed-off-by: Kevin McKinney <klmckinney1@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Nitin Gupta [Mon, 13 Feb 2012 04:04:45 +0000 (23:04 -0500)]
staging: zram: Rename module parameter
zram accepts number of devices to be created
as a module parameter. This was renamed from
num_devices to zram_num_devices (without updating
the documentation!) since num_devices was declared
as a non-static global variable, polluting the global
namespace. Now, we declare it as a static variable
and revert back the name change.
The documentation (zram.txt) already mentions
num_devices as the module parameter name.
staging:iio: Add event monitor example application
Add a small evtest like application to monitor events generated by an IIO
device. The application can be used as an example on how to listen for IIO
events and also is usful for testing and debugging device drivers which
generate IIO events.
Add macros for extracting whether the event is for a differential channel and
the second channel number from the event code. These were the only two fields
which did not have such an macro yet.
Commit 43ba1100 ("staging:iio:events: Use waitqueue lock to protect event
queue") removed the event_list_lock field from the iio_event_interface struct,
but missed to remove the same field from the documentation for that function.
Szymon Janc [Fri, 10 Feb 2012 20:05:43 +0000 (21:05 +0100)]
Staging: quickstart: Fix compilation warning on 64 bit arch
acpi_size is u32 or u64 depending on architecture. Cast it to
unsigned long and use %lu for printing.
This fix following build warning:
drivers/staging/quickstart/quickstart.c: In function ‘quickstart_acpi_ghid’:
drivers/staging/quickstart/quickstart.c:212:5: warning: format ‘%u’ expects argument of type ‘unsigned int’, but argument 3 has type ‘acpi_size’ [-Wformat]
David Rientjes [Tue, 14 Feb 2012 03:28:49 +0000 (19:28 -0800)]
staging: android, lowmemorykiller: convert to use oom_score_adj
/proc/pid/oom_adj is deprecated and will be removed in August 2012
according to Documentation/feature-removal-schedule.txt. Convert its
usage in the lowmemorykiller to use the new interface, oom_score_adj,
instead.
Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Staging: hv: storvsc: Move the storage driver out of the staging area
The storage driver (storvsc_drv.c) handles all block storage devices
assigned to Linux guests hosted on Hyper-V. This driver has been in the
staging tree for a while and this patch moves it out of the staging area.
James was willing to apply this patch during the 3.3-rc phase and a decision
was taken to defer this to 3.4 since Greg had queued up a bunch of storvsc
patches for 3.4. Now that Greg has applied all of the pending storvsc patches,
I am sending this patch to move this driver out of staging. Based on James'
recommendation, this patch gets rid of the unneeded files in the staging/hv
directory.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Acked-by: James Bottomley <JBottomley@Parallels.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This was done to resolve some merge issues with the following files that
had changed in both branches:
drivers/staging/rtl8712/rtl871x_sta_mgt.c
drivers/staging/tidspbridge/rmgr/drv_interface.c
drivers/staging/zcache/zcache-main.c
Mark A. Allyn [Fri, 10 Feb 2012 13:53:36 +0000 (13:53 +0000)]
staging: sep: reworked crypto layer
This gets the SEP crypto layer up and running with things like dmcrypt.
It's a fairly big set of changes because it has to rework the whole context
handling system.
[This is picked out of the differences between the upstream driver and
the staging driver. I'm resolving the differences as a series of updates -AC]
Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
John Stultz [Thu, 9 Feb 2012 22:24:41 +0000 (14:24 -0800)]
staging: android-alarm: Support old drivers via preprocessor aliasing
Older out of tree drivers that were desgined to the Android Alarm
in-kernel API may not build due to the namespace collision fixed in
an earlier patch. Per Arve's suggestion, this patch provides
preprocessor macros that allow older drivers to build.
CC: Arve Hjønnevåg <arve@android.com> CC: Android Kernel Team <kernel-team@android.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
John Stultz [Thu, 9 Feb 2012 22:24:40 +0000 (14:24 -0800)]
staging: android-alarm: Fixup minor pr_alarm warnings
This patch fixes the following warnings:
drivers/staging/android/alarm.c: In function ‘alarm_timer_triggered’:
drivers/staging/android/alarm.c:344: warning: format ‘%d’ expects type ‘int’, but argument 2 has type ‘long int’
drivers/staging/android/alarm.c:367: warning: format ‘%d’ expects type ‘int’, but argument 2 has type ‘long int’
CC: Arve Hjønnevåg <arve@android.com> CC: Android Kernel Team <kernel-team@android.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Arve Hjønnevåg [Thu, 9 Feb 2012 22:24:38 +0000 (14:24 -0800)]
staging: android-alarm: Update hrtimer if alarm at the head of the queue is reprogrammed
If an alarm was restarted with a value that moved it away from the head
of a queue, the hrtimer would not be updated. This would cause unnecessary
wakeups.
John Stultz [Thu, 9 Feb 2012 22:24:34 +0000 (14:24 -0800)]
staging: android-alarm: Fix namespace collision with upstreamed alarmtimers
The upstreamed alarmtimers are similar but not quite 100% API
compatibile with the android in-kernel alarm api. To aid the
transition, prefix the the android in-kernel api with android_
CC: Arve Hjønnevåg <arve@android.com> CC: Android Kernel Team <kernel-team@android.com> Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Andy Green [Thu, 9 Feb 2012 22:24:32 +0000 (14:24 -0800)]
staging: android-alarm: Add needed module.h includes
Add module.h includes required to build
CC: Arve Hjønnevåg <arve@android.com> CC: Android Kernel Team <kernel-team@android.com> CC: Andy Green <andy.green@linaro.org> Signed-off-by: Andy Green <andy.green@linaro.org>
[jstultz: Tweaked commit subject, folded two patches
into one] Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Drivers can now create alarms that will use an hrtimer while the
system is running and the rtc to wake up from suspend.
CC: Arve Hjønnevåg <arve@android.com> CC: Android Kernel Team <kernel-team@android.com> Signed-off-by: Arve Hjønnevåg <arve@android.com>
[Fold and move alarm driver and interface to staging,
fix whitespace issue, drop kconfig & make file changes
as it currently doesn't build -jstultz] Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Gerard Ryan [Fri, 10 Feb 2012 01:54:50 +0000 (01:54 +0000)]
Staging: bcm: fix CodingStyle warnings/errors reported by checkpatch.pl in led_control.h
This is a patch to the led_control.h file that fixes numerous warnings
and errors reported by the checkpatch.pl tool. There still remain a few
more, but as this is my first attempt at a commit, I'm not going to be
too adventurous!
Signed-off-by: Gerard Ryan <gerard@ryan.lt> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Larry Finger [Thu, 9 Feb 2012 22:37:17 +0000 (16:37 -0600)]
staging: r8712u: Add missing initialization and remove configuration parameter CONFIG_R8712_AP
When this driver was upgraded to the vendor 20100831 version in
commit 93c55dda092c7 et al,, one listhead initialization was missed.
This broke complete operation of the driver whenever AP mode was
enabled. This fixes https://bugs.archlinux.org/task/27996.
The configuration parameter R8712_AP is misleading as the driver cannot
function as an AP without a heavily hacked version of hostapd. Thus, it
makes sense to remove the parameter; however the code and data configured
for the option is left in.
Peter Huewe [Thu, 9 Feb 2012 20:11:48 +0000 (21:11 +0100)]
staging/xgifb: Use TVCLKBASE_315 as a base address
Since the defines TVVCLKDIV2, TVVCLK, HiTVVCLKDIV2, HiTVVCLK,
HiTVSimuVCLK and HiTVTextVCLK are now defined as relative values, we
have to use TVCLKBASE_315 (0x31) as a base address to get the same values
as before the merge.
The old and now duplicated defines were removed
Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Peter Huewe [Thu, 9 Feb 2012 20:11:47 +0000 (21:11 +0100)]
staging/xgifb: Rename XGI specific initdef.h defines
This patch renames some of the defines that exist in the sis initdef.h
but seem to have a different value.
In order to preserve the functionality of the driver, we simply prepend
these defines with XGI_ (for now) to resolve conflicts and review them
later on.
Peter Huewe [Thu, 9 Feb 2012 20:11:46 +0000 (21:11 +0100)]
staging/xgifb: Rename remaining sis initdef.h defines and remove duplicates
This patch renames the remaining duplicate defines and their usage to
the naming convention of the sis initdef.h and removes the now duplicated
defines.
Peter Huewe [Thu, 9 Feb 2012 20:11:43 +0000 (21:11 +0100)]
staging/xgifb: Include sis initdef.h header
This patch includes the initdef.h header from the sis driver.
Since the xgi driver used to redefine a lot of stuff from the sis
driver, we can simply include the headers of the sis driver itself, so
we can remove duplicated stuff later on.
In order to include the initdef.h we have to rename the header guards.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linus Torvalds [Thu, 9 Feb 2012 21:52:18 +0000 (13:52 -0800)]
Merge tag 'staging-3.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Staging tree patches for 3.3-rc3
Big things here is the deletion of the Android pmem driver, as it's
obsolete and no one uses it, the gma500 driver as it's already in the
drm portion of the kernel tree, and the pohmelfs filesystem as it's
obsolete and a rewritten version is being proposed for the fs/ section
of the kernel.
Other than that, a smattering of different bugfixes and regressions, and
some omap drm api merge fixups that were needed due to api changes in
the main portion of the drm tree, allowing this code to build properly
again.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tag 'staging-3.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (28 commits)
staging: pohmelfs: remove drivers/staging/pohmelfs
staging: android/ram_console: Don't build on arches w/o ioremap
staging: r8712u: Use asynchronous firmware loading
staging: usbip: fix to prevent potentially using uninitialized spinlock
staging: r8712u: Fix problem when CONFIG_R8712_AP is set
staging: tidspbridge: fix incorrect free to drv_datap
staging: tidspbridge: fix bridge_open memory leaks
staging: android: lowmemorykiller: Don't wait more than one second for a process to die
MAINTAINERS: staging: iio: add iio information
staging: zcache: fix serialization bug in zv stats
staging: fix go7007-usb license
Staging: android: binder: Fix crashes when sharing a binder file between processes
Staging: android: Remove pmem driver
Staging: asus_oled: fix NULL-ptr crash on unloading
Staging: asus_oled: fix image processing
Staging: android: binder: Don't call dump_stack in binder_vma_open
staging: r8712u: Add new Sitecom UsB ID
zcache: Set SWIZ_BITS to 8 to reduce tmem bucket lock contention.
zcache: fix deadlock condition
staging: drm/omap: fix locking issue
...
Linus Torvalds [Thu, 9 Feb 2012 21:51:36 +0000 (13:51 -0800)]
Merge tag 'driver-core-3.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Driver core fixes for the 3.3-rc3 tree.
A few fixes for kobject warnings that have popped up in the cpu hotplug path,
and a regression fix for the speed of the hotplug memory code.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tag 'driver-core-3.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
driver-core: cpu: fix kobject warning when hotplugging a cpu
ACPI: remove duplicated lines of merging problems with acpi_processor_add
docbook: fix fatal errors in device-drivers docbook and add DMA Management section
drivers/base/memory.c: fix memory_dev_init() long delay
driver core: cpu: remove kernel warning when removing a cpu
Linus Torvalds [Thu, 9 Feb 2012 21:51:13 +0000 (13:51 -0800)]
Merge tag 'char-misc-3.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Minor char-misc fixes for 3.3-rc3
Nothing big here, some Kconfig fixes for the MISC_DEVICES config option
that was being used incorrectly, and some other minor bug fixes.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tag 'char-misc-3.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
mmc: cb710 core: Add missing spin_lock_init for irq_lock of struct cb710_chip
cs5535-mfgpt: don't call __init function from __devinit
vmw_balloon: fix for a -Wuninitialized warning
drivers: misc: Remove MISC_DEVICES config option
c2port: fix build error for duramar2150 due to missing header.
Linus Torvalds [Thu, 9 Feb 2012 21:50:54 +0000 (13:50 -0800)]
Merge tag 'usb-3.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
USB fixes for 3.3-rc3
Here are a few minor USB fixes and a bunch of device id updates for the
USB drivers.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* tag 'usb-3.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
USB: usbserial: add new PID number (0xa951) to the ftdi driver
usb: ch9.h: usb_endpoint_maxp() uses __le16_to_cpu()
usb: musb: fix a build error on mips
uwb & wusb & usb wireless controllers: fix kconfig error & build errors
usb: Skip PCI USB quirk handling for Netlogic XLP
powerpc/usb: fix issue of CPU halt when missing USB PHY clock
usb: otg: mv_otg: Add dependence
usb: host: Distinguish Kconfig text for Freescale controllers
USB: add new zte 3g-dongle's pid to option.c
usb: ch9.h: usb_endpoint_maxp() uses __le16_to_cpu()
USB: qcserial: don't enable autosuspend
USB: qcserial: add several new serial devices
usb: otg: mv_otg: Add dependence
usb: gadget: zero: fix bug in loopback autoresume handling
Seth Jennings [Thu, 9 Feb 2012 18:25:02 +0000 (12:25 -0600)]
staging: zcache: fix serialization bug in zv stats
In a multithreaded workload, the zv_curr_dist_counts
and zv_cumul_dist_counts statistics are being corrupted
because the increments and decrements in zv_create
and zv_free are not atomic.
This patch converts these statistics and their corresponding
increments/decrements/reads to atomic operations.
David Howells [Thu, 9 Feb 2012 15:48:20 +0000 (15:48 +0000)]
Reduce the number of expensive division instructions done by _parse_integer()
_parse_integer() does one or two division instructions (which are slow)
per digit parsed to perform the overflow check.
Furthermore, these are particularly expensive examples of division
instruction as the number of clock cycles required to complete them may
go up with the position of the most significant set bit in the dividend:
if (*res > div_u64(ULLONG_MAX - val, base))
which is as maximal as possible.
Worse, on 32-bit arches, more than one of these division instructions
may be required per digit.
So, assuming we don't support a base of more than 16, skip the check if the
top nibble of the result is not set at this point.
Signed-off-by: David Howells <dhowells@redhat.com>
[ Changed it to not dereference the pointer all the time - even if the
compiler can and does optimize it away, the code just looks cleaner.
And edited the top nybble test slightly to make the code generated on
x86-64 better in the loop - test against a hoisted constant instead of
shifting and testing the result ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jonathan Cameron [Sun, 29 Jan 2012 11:07:04 +0000 (11:07 +0000)]
staging:iio:adc:adt7310/7410 sticking plaster fix for broken event attrs.
Neither of these drivers has ever been anywhere near the iio abi.
Probably as a result of this the fact they had two event groups
each was not picked up when we restricted IIO to having only
1 event line per device (as part of the chrdev merge set).
As such these definitely didn't work before. This patch squishes
the only element from the 'comparator' event line that isn't in the
'interrupt' one into it and kills off the 'comparator' one.
Ultimately both of these drivers belong in hwmon not IIO and are just
waiting here because I don't want to kill off a driver that may
prove useful to someone. (Ultimately I will ask Greg to scrap
these two if no one steps up to deal with them.)
Jonathan Cameron [Sun, 29 Jan 2012 11:07:03 +0000 (11:07 +0000)]
staging:iio:adc:ad7606 unwind use of is_visible for attrs.
This is the most controversial of this set of is_visible removals.
There are two conditions controlling availability of attrs resulting
in 4 different attribute groups.
Still for a few more lines things are clearer to read to my mind.
We always hold the waitqueue lock when modifying the flags field. So it is safe
to use the non-atomic bitops here instead of the atomic versions.
The lock has to be held, because we need to clear the busy flag and flush the
event FIFO in one atomic operation when closing the event file descriptor.
Add poll support to the event queue. This will allow us to check for pending
events in a application's event loop using poll() or similar. Since we already
have support for blocking reads adding poll support as well is trivial.
staging:iio:events: Use waitqueue lock to protect event queue
Use the waitqueue lock to protect the event queue instead of a custom mutex.
This has the advantage that we can call the waitqueue operations with the lock
held, which simplifies the code flow a bit.
The current IIO event code uses a list to emulate FIFO like behavior.
Just use a kfifo directly instead to implement the event queue. As part of this
patch the maximum of events in the queue is increased from 10 to 16 since kfifo
requires a power of two for the number of FIFO elements.
staging:iio: Factor out event handling into its own file
The core iio file has gotten quite cluttered over time. This patch moves
the event handling code into its own file. Since the event handling code is
largely independent from the core code the only code changes necessary for
this are to make the moved iio_device_register_eventset,
iio_device_unregister_eventset and iio_event_getfd functions non static.
This has also the advantage that industrialio-core.c is now closer again to
its counterpart in the outofstaging branch.
The documentation for the iio_event_interface does not match the actual struct
anymore. This patch removes the documentation for non-existing fields and adds
documentation for missing fields.
Olof Johansson [Fri, 23 Dec 2011 02:46:42 +0000 (18:46 -0800)]
staging:iio: ak8975: add of_match table for device-tree probing
Just like isl29018; trivial addition. Using both asahi-kasei,ak8975 and
the non-prefixed version (I couldn't figure out if Asahi Kasei had a
stock symbol to use, I only found numerical indexes for their stock info).
Signed-off-by: Olof Johansson <olof@lixom.net> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
projects / mirror_ubuntu-bionic-kernel.git / log