Davi Arnaut [Wed, 23 May 2007 20:58:04 +0000 (13:58 -0700)]
signalfd: retrieve multiple signals with one read() call
Gathering signals in bulk enables server applications to drain a signal
queue (almost full of realtime signals) more efficiently by reducing the
syscall and file look-up overhead.
Very similar to the sigtimedwait4() call described by Niels Provos, Chuck
Lever, and Stephen Tweedie in a paper entitled "Analyzing the Overload
Behavior of a Simple Web Server". The paper lists more details and
advantages.
Signed-off-by: Davi E. M. Arnaut <davi@haxent.com.br> Acked-by: Davide Libenzi <davidel@xmailserver.org> Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
SLUB Debug: fix check for super sized slabs (>512k 64bit, >256k 32bit)
The check for super sized slabs where we can no longer move the free
pointer behind the object for debugging purposes etc is accessing a
field that is not setup yet. We must use objsize here since the size of
the slab has not been determined yet.
The effect of this is that a global slab shrink via "slabinfo -s" will
show errors about offsets being wrong if booted with slub_debug.
Potentially there are other troubles with huge slabs under slub_debug
because the calculated free pointer offset is truncated.
Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sascha Hauer [Wed, 23 May 2007 20:57:51 +0000 (13:57 -0700)]
imxfb: remove ifdefs
Here are some small fixes for the imxfb framebuffer driver:
- remove ifndef for MX1FS2 platform which is not present in the kernel.
- REV, CLS, PS and SPL_SPR are only needed with some sharp displays.
Only setup the corresponding io pins when such a display is connected.
Krzysztof Helt [Wed, 23 May 2007 20:57:48 +0000 (13:57 -0700)]
pm3fb: various fixes
- fix 16-bit RGBA 4444 and 5551 modes (use fbset -rgba to set them)
- kill wmb() after each register write by PM3_SLOW_WRITE_REG
- kill inaccurate comments (leftovers from skeletonfb.c)
- kill PCI class restriction, now it is more general and shorter
- white spaces and other minor fixes and source reducing
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Roland McGrath [Wed, 23 May 2007 20:57:44 +0000 (13:57 -0700)]
recalc_sigpending_tsk fixes
Steve Hawkes discovered a problem where recalc_sigpending_tsk was called in
do_sigaction but no signal_wake_up call was made, preventing later signals
from waking up blocked threads with TIF_SIGPENDING already set.
In fact, the few other calls to recalc_sigpending_tsk outside the signals
code are also subject to this problem in other race conditions.
This change makes recalc_sigpending_tsk private to the signals code. It
changes the outside calls, as well as do_sigaction, to use the new
recalc_sigpending_and_wake instead.
Signed-off-by: Roland McGrath <roland@redhat.com> Cc: <Steve.Hawkes@motorola.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Ben Collins [Wed, 23 May 2007 20:57:43 +0000 (13:57 -0700)]
Avoid zero size allocation in cache_k8_northbridges()
kmalloc for flush_words resulted in zero size allocation when no
k8_northbridges existed. Short circuit the code path for this case.
Also remove uneeded zeroing of num_k8_northbridges just after checking if
it is zero.
Signed-off-by: Ben Collins <bcollins@ubuntu.com> Cc: Andi Kleen <ak@suse.de> Cc: Dave Jones <davej@codemonkey.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Robert P. J. Day [Wed, 23 May 2007 20:57:42 +0000 (13:57 -0700)]
Documentation: fix the explanation of Kconfig files
Fix the obvious errors in the explanation of Kconfig files.
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Paul E. McKenney [Wed, 23 May 2007 20:57:41 +0000 (13:57 -0700)]
prohibit rcutorture from being compiled into the kernel
There have been a number of instances where people have accidentally compiled
rcutorture into the kernel (CONFIG_RCU_TORTURE_TEST=y), which has never been
useful, and has often resulted in great frustration.
The attached patch prohibits rcutorture from being compiled into the
kernel. It may be excluded altogether or compiled as a module. People
wishing to have rcutorture hammer their machine immediately upon boot
are free to hand-edit lib/Kconfig.debug to remove the "depends on m"
line.
Thanks to Randy Dunlap for the trick that makes this work.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Josh Triplett <josh@kernel.org> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Jeff Dike [Wed, 23 May 2007 20:57:40 +0000 (13:57 -0700)]
uml: improve PTRACE_SYSEMU checking
Make the PTRACE_SYSEMU checking more robust. It will make sure that system
call numbers are reported correctly. If there is a problem, it will disable
PTRACE_SYSEMU use and use PTRACE_SYSCALL instead.
Thanks to Balaji G for helping reproduce this problem.
Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andrew Morton [Wed, 23 May 2007 20:57:39 +0000 (13:57 -0700)]
capability.h warning fix
include/linux/capability.h:397: warning: "struct task_struct" declared inside parameter list
include/linux/capability.h:397: warning: its scope is only this definition or declaration, which is probably not what you want
Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Allow user space to determine if a disk supports Asynchronous Notification of
media changes. This is done by adding a new sysfs file "capability_flags",
which is documented in (insert file name). This sysfs file will export all
disk capabilities flags to user space. We also define a new flag to define
the media change notification capability.
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Thomas Gleixner [Wed, 23 May 2007 20:57:37 +0000 (13:57 -0700)]
NOHZ: Rate limit the local softirq pending warning output
The warning in the NOHZ code, which triggers when a CPU goes idle with
softirqs pending can fill up the logs quite quickly. Rate limit the output
until we found the root cause of that problem.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Domen Puncer [Wed, 23 May 2007 20:57:32 +0000 (13:57 -0700)]
mpc52xx_psc_spi: fix it for CONFIG_PPC_MERGE
Fix mpc5200 PSC SPI driver to actually work for CONFIG_PPC_MERGE
- s/mpc52xx/mpc5200/, as this was changed in device tree some time ago
- fix spi id detection
The move from 'ppc' to 'powerpc' didn't quite match the latest
kernel.org code.
Signed-off-by: Domen Puncer <domen.puncer@telargo.com> Acked-by: Dragos Carp <dragos.carp@toptica.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The object size calculation is wrong if !CONFIG_SLUB_DEBUG because the
#ifdef CONFIG_SLUB_DEBUG is now switching off the size adjustments for
DESTROY_BY_RCU and ctor.
Signed-off-by: Christoph Lameter <clameter@sgi.com> Acked-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Thomas Gleixner [Wed, 23 May 2007 20:57:30 +0000 (13:57 -0700)]
Ignore bogus ACPI info for offline CPUs
Booting a SMP kernel with maxcpus=1 on a SMP system leads to a hard hang,
because ACPI ignores the maxcpus setting and sends timer broadcast info for
the offline CPUs. This results in a stuck for ever call to
smp_call_function_single() on an offline CPU.
Ignore the bogus information and print a kernel error to remind ACPI
folks to fix it.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Gautham R Shenoy [Wed, 23 May 2007 20:57:28 +0000 (13:57 -0700)]
freezer: fix PF_NOFREEZE vs freezeable race
This patch fixes the race pointed out by Oleg Nesterov.
* Freezer marks a thread as freezeable.
* The thread now marks itself PF_NOFREEZE, but it will be frozen on
on calling try_to_freeze(). Thus the task is frozen, even though it doesn't
want to.
* Subsequent thaw_processes() will also fail to thaw the task since it is
marked PF_NOFREEZE.
Avoid this problem by checking the task's PF_NOFREEZE status in
frozen_processes() before marking the task as frozen.
Signed-off-by: Gautham R Shenoy <ego@in.ibm.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: Pavel Machek <pavel@ucw.cz> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Oleg Nesterov [Wed, 23 May 2007 20:57:27 +0000 (13:57 -0700)]
freezer: fix kthread_create vs freezer theoretical race
kthread() sleeps in TASK_INTERRUPTIBLE state waiting for the first wakeup. In
theory, this wakeup may come from freeze_process()->signal_wake_up(), so the
task can disappear even before kthread_create() sets its ->comm.
Change kthread() to use TASK_UNINTERRUPTIBLE.
[akpm@linux-foundation.org: s/BUG_ON/WARN_ON+recover] Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Gautham R Shenoy <ego@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Kernel threads can become userland processes by calling kernel_execve().
In particular, this may happen right after the try_to_freeze_tasks()
called with FREEZER_USER_SPACE has returned, so try_to_freeze_tasks()
needs to take userspace processes into consideration even if it is
called with FREEZER_KERNEL_THREADS.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Cc: Gautham R Shenoy <ego@in.ibm.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Currently try_to_freeze_tasks() has to wait until all of the vforked processes
exit and for this reason every user can make it fail. To fix this problem we
can introduce the additional process flag PF_FREEZER_SKIP to be used by tasks
that do not want to be counted as freezable by the freezer and want to have
TIF_FREEZE set nevertheless. Then, this flag can be set by tasks using
sys_vfork() before they call wait_for_completion(&vfork) and cleared after
they have woken up. After clearing it, the tasks should call try_to_freeze()
as soon as possible.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Gautham R Shenoy <ego@in.ibm.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: Pavel Machek <pavel@ucw.cz> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
freezer: close potential race between refrigerator and thaw_tasks
If the freezing of tasks fails and a task is preempted in refrigerator()
before calling frozen_process(), then thaw_tasks() may run before this task is
frozen. In that case the task will freeze and no one will thaw it.
To fix this race we can call freezing(current) in refrigerator() along with
frozen_process(current) under the task_lock() which also should be taken in
the error path of try_to_freeze_tasks() as well as in thaw_process().
Moreover, if thaw_process() additionally clears TIF_FREEZE for tasks that are
not frozen, we can be sure that all tasks are thawed and there are no pending
"freeze" requests after thaw_tasks() has run.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Cc: Gautham R Shenoy <ego@in.ibm.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Junio C Hamano [Thu, 24 May 2007 00:42:38 +0000 (02:42 +0200)]
Match DMA blacklist entries between ide-dma.c and libata-core.c
There are a few entries in ata_device_blacklist[] in libata-core.c
marked with HORKAGE_NODMA but are missing from drive_blacklist[]
in ide-dma.c. This patch makes the lists in sync.
Also remove a duplicated entry for "SanDisk SDP3B-64".
Signed-off-by: Junio C Hamano <junkio@cox.net> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Dave Jones <davej@redhat.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Mika Kukkonen [Thu, 24 May 2007 00:42:38 +0000 (02:42 +0200)]
Add two missing chipsets to drivers/ide/ide-proc.c
Compiling with '-Wswitch-enum' I noticed following:
CC drivers/ide/ide-proc.o
drivers/ide/ide-proc.c: In function â\80\98proc_ide_read_imodelâ\80\99:
drivers/ide/ide-proc.c:54: warning: enumeration value â\80\98ide_etrax100â\80\99 not handled in switch
drivers/ide/ide-proc.c:54: warning: enumeration value â\80\98ide_acornâ\80\99 not handled in switch
How about the following patch?
Signed-off-by: Mika Kukkonen <mikukkon@iki.fi> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Alan Cox [Thu, 24 May 2007 00:42:38 +0000 (02:42 +0200)]
ide/pci/serverworks.c: Fix corruption/timeouts with MegaIDE
It turns out from customer reports to Red Hat and some PCI dumps that the
MegaIDE in RAID mode doesn't provide the drive tuning data that the
serverworks driver expects but sometimes does provide something that
fools the code.
For the RAID class case skip the oem setup and don't trust the BIOS data.
We then tune from scratch and this sorts it out. (This has been confirmed
on an afflicted IBM blade)
[libata serverworks.c never trusts the BIOS in the first place so is
accidentally immune]
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Linus Torvalds [Wed, 23 May 2007 15:16:24 +0000 (08:16 -0700)]
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[RTNETLINK]: Remove remains of wireless extensions over rtnetlink
[RTNETLINK]: Allow changing of subsets of netdevice flags in rtnl_setlink
[AF_RXRPC]: Make call state names available if CONFIG_PROC_FS=n
[AF_RXRPC]: AF_RXRPC depends on IPv4
[IPSEC]: Fix warnings with casting int to pointer
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: (29 commits)
USB: Add support for Olimex arm-usb-ocd JTAG interface serial port
USB: Add support for Sierra Wireless Aircard 595U
USB: ldusb bugfix
USB: ftdi_sio: Add USB Product Id for OpenDCC
USB: fix ratelimit call semantics
USB: handle errors in power/level attribute
USB: make the autosuspend workqueue thread freezable
USB: Fix USB OHCI Subvendor for Toshiba Portege 4000
USB: usblp: Use correct DMA address in case of probe error
USB: Fix debug output of ark3116
USB: Onetouch - switch to using input_dev->dev.parent
USB: don't try to kzalloc 0 bytes
USB: remove short initial timeout for device descriptor fetch
USB: Deref URB after usbmon is done with it
USB: Remove duplicate IDs from option card driver
USB: auerswald: fix file release handler
USB: fsl_usb2_udc: Fix UMTI_WIDE support and a compile warning
USB: set the correct Interrupt interval in usb_bulk_msg
USB: New device PID for ftdi_sio driver
USB: remove unneeded WARN_ON
...
Linus Torvalds [Wed, 23 May 2007 15:11:43 +0000 (08:11 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: ads7846 - SPI_CPHA mode bugfix
Input: ads7846 - document that it handles tsc2046 too
Input: input-polldev - add module info
Input: ucb1x00-ts - remove commented out code
Input: ucb1400_ts - use sched_setscheduler()
Input: ALPS - force stream mode
Input: iforce - minor clean-ups
Input: iforce - fix force feedback not working
Input: adbhid - do not access input_dev->private directly
Input: logips2pp - add type 72 (PS/2 TrackMan Marble)
Tony Lindgren [Sat, 5 May 2007 01:23:24 +0000 (18:23 -0700)]
USB: Add support for Olimex arm-usb-ocd JTAG interface serial port
This patch adds support for the serial port on Olimex arm-usb-ocd
JTAG interface.
The device appears as two serial ports, but the first one is reserved
for the JTAG interface. The JTAG interface can be used with OpenOCD
from userspace. For more information, please see:
Alan Stern [Tue, 22 May 2007 15:48:17 +0000 (11:48 -0400)]
USB: fix ratelimit call semantics
This patch (as910) fixes a ratelimit modification so that the
original error-handling path will be followed even when the log-rate
limitation kicks in.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Tue, 22 May 2007 15:38:19 +0000 (11:38 -0400)]
USB: handle errors in power/level attribute
This patch (as906) improves the error handling for the USB power/level
attribute file. If an error occurs, the original power-level settings
will be restored.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Tue, 22 May 2007 13:38:39 +0000 (09:38 -0400)]
USB: make the autosuspend workqueue thread freezable
This patch (as881b) makes the ksuspend_usb_wq workqueue freezable. We
don't want a rogue workqueue thread running around, unexpectedly
suspending or resuming USB devices in the middle of a system sleep
transition.
This fixes Bugzilla #8498.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Andrey Borzenkov [Sat, 19 May 2007 21:23:28 +0000 (14:23 -0700)]
USB: Fix USB OHCI Subvendor for Toshiba Portege 4000
This fixes a bug in an OHCI quirk handler for Portege 4000; the
Subvendor is 0x1179 (PCI_VENDOR_ID_TOSHIBA)
not 0x102f (PCI_VENDOR_ID_TOSHIBA_2)
bugid 8510
00:02.0 USB Controller [0c03]: ALi Corporation USB 1.1 Controller
[10b9:5237] (rev 03) (prog-if 10 [OHCI])
Subsystem: Toshiba America Info Systems Unknown device [1179:0004]
Flags: bus master, medium devsel, latency 64, IRQ 11
Memory at f7eff000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Jan Engelhardt [Thu, 17 May 2007 15:16:44 +0000 (17:16 +0200)]
USB: Fix debug output of ark3116
Fix debug output. Previously, it would output "0xFFFFFFB0" on 32-bit
archs (and probably "0xFFFFFFFFFFFFFFB0" on 64-bits), because buf is
taken as signed char, which is promoted to signed int, while %x always
expects an unsigned int.
Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Dmitry Torokhov [Tue, 8 May 2007 04:31:30 +0000 (00:31 -0400)]
USB: Onetouch - switch to using input_dev->dev.parent
In preparation for struct class_device -> struct device input
core conversion, switch to using input_dev->dev.parent when
specifying device position in sysfs tree.
Also, do not access input_dev->private directly, use helpers.
Alan Stern [Fri, 11 May 2007 14:19:04 +0000 (10:19 -0400)]
USB: remove short initial timeout for device descriptor fetch
This patch (as905) removes a micro-optimization from the hub port
initialization code. Previously we had been using a short timeout on
the first attempt the read the device descriptor; now we will use the
standard timeout length.
It's not clear that the short timeout ever provided any benefit. And
now we know of one case where it actually hurts: The device can't meet
the short timeout and then it gets terminally confused.
This fixes Bugzilla #8444.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Andrew Morton [Fri, 11 May 2007 06:04:14 +0000 (23:04 -0700)]
USB: auerswald: fix file release handler
If this down_interruptible() does fail due to signal_pending() then the state
of the driver will get trashed in interesting ways, because userspace cannot
and will not retry the close().
Alan Stern [Mon, 23 Apr 2007 21:30:32 +0000 (17:30 -0400)]
USB: set the correct Interrupt interval in usb_bulk_msg
This patch (as902) fixes a mistake I introduced into usb_bulk_msg().
usb_fill_int_urb() already does the bit-shifting calculation for
high-speed Interrupt intervals; it shouldn't be done twice.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
I need to use MaxStream's PKG-U modules which includes a ftdi sio chipset for
usb2serial communication, here are the patches for handling Maxstream's modules.
The VID & PID to use with the open-source driver are provided on the CD-ROM
bundled with the modules.
From: Neil Superna ARMSTRONG <superna@na-prod.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Thu, 5 Apr 2007 20:07:44 +0000 (16:07 -0400)]
USB: remove unneeded WARN_ON
This patch (as883) removes an out-of-date WARN_ON from the main HCD
endpoint-disable routine. The warning is triggered whenever an
endpoint is disabled while the root hub is suspended. In the past
that may not have been legal, but it definitely is legal now. Merely
unbinding a USB driver will do it.
Furthermore, I've never seen any occurrences of this warning that
really did signal an actual bug or error condition. At this point it
has outlived its purpose.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Alan Stern [Thu, 5 Apr 2007 20:03:49 +0000 (16:03 -0400)]
USB: more autosuspend timer stuff
This patch (as879) ties up some loose ends from an earlier patch.
These are things I didn't think to include at the time but which
clearly belonged there.
If an autosuspend fails because driver activity races with
the autosuspend call, restart the autosuspend timer.
When a device is resumed by an external request, it counts
as device activity and should update the last_busy time so
that the next autoresume won't occur immediately.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Thu, 5 Apr 2007 20:06:53 +0000 (16:06 -0400)]
EHCI: fix problem with BIOS handoff
This patch (as882) fixes a problem with the EHCI BIOS handoff. On my
machine, the BIOS configures the controller and the handoff fails,
leaving the controller configured. During resume-from-disk, this
confuses ehci-hcd into thinking that the controller has not been
tampered with.
The problem is fixed by turning off the Configured Flag whenever a
BIOS handoff is attempted, whether it succeeds or not.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Mon, 30 Apr 2007 08:37:44 +0000 (01:37 -0700)]
USB: address FIXME in usbnet w.r.t drivers claiming multiple interfaces
This fixes the issue of drivers claiming multiple interfaces. Operations
are stopped as soon as an interface is suspend and resumed only as
all interfaces have been resumed.
Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Brownell [Mon, 30 Apr 2007 02:51:05 +0000 (19:51 -0700)]
USB: remove usb DocBook warnings
This just removes some warnings generated by the Docbook tools when
turning USB (host and peripheral side) kerneldoc into HTML; they're
all about missing ID attributes.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Brownell [Sun, 29 Apr 2007 17:21:14 +0000 (10:21 -0700)]
USB: fix more ftdi-elan/u132-hcd #include lossage
Partial fix for bogosity in the ftdi-elan and u132-hcd drivers ... these
have no business including with the internals of other drivers, much less
doing so in a broken way!!
A previous patch resolved one build fix, this resolves another...
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Oliver Neukum [Wed, 2 May 2007 08:33:10 +0000 (10:33 +0200)]
USB: fix omninet memory leak found by coverity
the transfer of allocating the descriptor in attach and no longer in open
was incomplete resulting in a memory leak coverity spotted. This fix
is against the patch set you posted.
Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Semih Hazar [Wed, 23 May 2007 03:35:12 +0000 (23:35 -0400)]
Input: ads7846 - SPI_CPHA mode bugfix
In commit [1] the SPI mode is set to 1, but it should be 0. As stated
in the commit, ads784x samples the data on the rising edge. SPI mode 1
samples on the falling edge [2] though.
The root cause of this is a bug in the omap_uwire code, which treats
CPHA=1 incorrectly; so these two bugs cancel each other out on one
of the main regression test platforms for this driver.
Dmitry Torokhov [Tue, 15 May 2007 03:51:54 +0000 (23:51 -0400)]
Input: ALPS - force stream mode
ALPS appears to need SETSTREAM command after reset, otherwise it
does not produce any data. Now that we do not request stream mode
by default individual drivers need to take care of it.
Patrick McHardy [Wed, 23 May 2007 00:00:49 +0000 (17:00 -0700)]
[RTNETLINK]: Remove remains of wireless extensions over rtnetlink
Remove some unused variables and function arguments related to the
recently removed wireless extensions over rtnetlink.
Signed-off-by: Patrick McHardy <kaber@trash.net> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Patrick McHardy [Wed, 23 May 2007 00:00:01 +0000 (17:00 -0700)]
[RTNETLINK]: Allow changing of subsets of netdevice flags in rtnl_setlink
rtnl_setlink doesn't allow to change subsets of the flags, just to override
the set entirely by a new one. This means that for simply setting a device
up or down userspace first needs to query the current flags, change it and
send the changed flags back, which is racy and needlessly complicated.
Mask the flags using ifi_change since this is what it is intended for.
For backwards compatibility treat ifi_change == 0 as ~0 (even though it
seems quite unlikely that anyone has been using this so far).
Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds [Tue, 22 May 2007 23:46:29 +0000 (16:46 -0700)]
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] fix kmalloc(0) in arch/ia64/pci/pci.c
[IA64] Only unwind non-running tasks.
[IA64] Improve unwind checking.
[IA64] Yet another section mismatch warning
[IA64] Fix bogus messages about system calls not implemented.
Jonathan Corbet [Tue, 22 May 2007 03:39:00 +0000 (00:39 -0300)]
V4L/DVB (5691): Ov7670: reset clkrc in rgb565 mode
A bug in the ov7670 sensor causes it to introduce noise unless the CLKRC
register is rewritten *after* setting the image mode. Naturally,
resetting CLKRC in this way will cause other modes to fail. So
carefully poke the register only when indicated.
Signed-off-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Jonathan Corbet [Tue, 22 May 2007 03:37:58 +0000 (00:37 -0300)]
V4L/DVB (5690): Cafe_ccic: Properly power down the sensor
The proper method for powering down the sensor on OLPC systems has
changed somewhat; in particular, the sensor must be powered down
completely (rather than simply told to power down) or the associated
"camera active" LED will stay on.
Signed-off-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
projects / linux-2.6 / log