Commit Graph

36550 Commits

Author SHA1 Message Date
Martin Schwidefsky
94c12cc7d1 [S390] Inline assembly cleanup.
Major cleanup of all s390 inline assemblies. They now have a common
coding style. Quite a few have been shortened, mainly by using register
asm variables. Use of the EX_TABLE macro helps  as well. The atomic ops,
bit ops and locking inlines new use the Q-constraint if a newer gcc
is used.  That results in slightly better code.

Thanks to Christian Borntraeger for proof reading the changes.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-28 16:56:43 +02:00
Heiko Carstens
25d83cbfaa [S390] Whitespace cleanup.
Huge s390 assembly files whitespace cleanup.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-28 16:56:37 +02:00
Martin Schwidefsky
52149ba6b0 [S390] user readable uninitialised kernel memory.
A user space program can read uninitialised kernel memory
by appending to a file from a bad address and then reading
the result back. The cause is the copy_from_user function
that does not clear the remaining bytes of the kernel
buffer after it got a fault on the user space address.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-28 16:56:03 +02:00
Jan Glauber
51dced544e [S390] init_timer in tty3270.
Call init_timer only once fpr tp->timer in tty3270.

Signed-off-by: Jan Glauber <jan.glauber@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-28 16:55:53 +02:00
Christian Borntraeger
0efa470363 [S390] config option for z9-109 code generation.
Add a kernel config option for the IBM System z9. This will produce
faster code on newer compilers using the -march=z9-109 option.

Signed-off-by: Christian Borntraeger <cborntra@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-28 16:55:46 +02:00
Martin Schwidefsky
d9f7a745d5 [S390] __div64_32 for 31 bit.
The clocksource infrastructure introduced with commit
ad596171ed broke 31 bit s390.
The reason is that the do_div() primitive for 31 bit always
had a restriction: it could only divide an unsigned 64 bit
integer by an unsigned 31 bit integer. The clocksource code
now uses do_div() with a base value that has the most
significant bit set. The result is that clock->cycle_interval
has a funny value which causes the linux time to jump around
like mad.
The solution is "obvious": implement a proper __div64_32
function for 31 bit s390.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-28 16:55:39 +02:00
Christian Borntraeger
1fce518e8e [S390] remove unnecessary includes.
Signed-off-by: Christian Borntraeger <cborntra@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-28 16:55:33 +02:00
Michael Holzheu
23c100d99c [S390] hypfs sparse warnings.
sparse complains, if we use bitwise operations on enums. Cast enum to
long in order to fix that problem!

Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-28 16:55:28 +02:00
Gerald Schaefer
925afbd6cb [S390] Avoid static struct initializations in appldata.
Don't use static initialization for struct members containing
variables because gcc would generate more code and use double space
on stack.

Signed-off-by: Gerald Schaefer <geraldsc@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-28 16:55:23 +02:00
Akinobu Mita
bac9c66cd2 [S390] init task memory faults.
Lock for mmap_sem is missing on page fault retry for init task
when it fails due to out of memory.

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2006-09-28 16:55:18 +02:00
Linus Torvalds
a77c64c1a6 Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (48 commits)
  [PATCH] bonding: update version number
  [PATCH] git-netdev-all: pc300_tty build fix
  [PATCH] Make PC300 WAN driver compile again
  [PATCH] Modularize generic HDLC
  [PATCH] more s2io __iomem annotations
  [PATCH] restore __iomem annotations in e1000
  [PATCH] 64bit bugs in s2io
  [PATCH] bonding: Fix primary selection error at enslavement time
  [PATCH] bonding: Don't mangle LACPDUs
  [PATCH] bonding: Validate probe replies in ARP monitor
  [PATCH] bonding: Don't release slaves when master is admin down
  [PATCH] bonding: Add priv_flag to avoid event mishandling
  [PATCH] bonding: Handle large hard_header_len
  [PATCH] bonding: Remove unneeded NULL test
  [PATCH] bonding: Format fix in seq_printf call
  [PATCH] bonding: Convert delay value from s16 to int
  [PATCH] bonding: Allow bonding to enslave a 10 Gig adapter
  Delete unused drivers/net/gt64240eth.h
  [PATCH] skge: fiber support
  [PATCH] fix possible NULL ptr deref in forcedeth
  ...
2006-09-27 14:41:24 -07:00
Linus Torvalds
ac7f6b5e44 Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  [libata] Don't use old-EH ->eng_timeout() hook when not needed
  [libata] sata_mv: fix oops by filling in missing hook
  [libata] One more s/15/ATA_SECONDARY_IRQ/ substitution
  [libata] pata_serverworks: fill in ->irq_clear hook
  [PATCH] pata_serverworks: correct PCI ID in cable detection table
  [PATCH] libata-sff: use our IRQ defines
  [PATCH] libata-eh: Remove layering violation and duplication when handling absent ports
  [PATCH] libata: tighten rules for legacy dependancies
  [PATCH] libata: refuse to register IRQless ports
2006-09-27 14:41:00 -07:00
Linus Torvalds
1f9bd4c96a Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: (129 commits)
  [PATCH] USB Storage: fix Rio Karma eject support build error
  USB: Airprime driver improvements to allow full speed EvDO transfers
  USB: remove OTG build warning
  USB: EHCI update VIA workaround
  USB: force root hub resume after power loss
  USB: ohci_usb can oops on shutdown
  USB: Dealias -110 code (more complete)
  USB: Remove unneeded void * casts in core files
  USB: u132-hcd: host controller driver for ELAN U132 adapter
  USB: ftdi-elan: client driver for ELAN Uxxx adapters
  usb serial: support Alcor Micro Corp. USB 2.0 TO RS-232 through pl2303 driver
  USB: Moschip 7840 USB-Serial Driver
  USB: add PlayStation 2 Trance Vibrator driver
  USB: Add ADU support for Ontrak ADU devices
  aircable: fix printk format warnings
  Add AIRcable USB Bluetooth Dongle Driver
  cypress_m8: implement graceful failure handling
  cypress_m8: improve control endpoint error handling
  cypress_m8: use usb_fill_int_urb where appropriate
  cypress_m8: use appropriate URB polling interval
  ...
2006-09-27 14:40:30 -07:00
Andi Kleen
00463c1633 [PATCH] i386: Use early clobbers for semaphores now
The new code does clobber the result early, so make sure to tell
gcc to not put it into the same register as a input argument

Signed-off-by: Andi Kleen <ak@suse.de>
Cc: Andrew Morton <akpm@osdl.org>
Acked-by: Kyle McMartin <kyle@parisc-linux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-27 14:39:51 -07:00
Jay Vosburgh
0ba8821b12 [PATCH] bonding: update version number
I neglected to properly update the version number in the recent
patch series; this sets it to something reasonable.

Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-27 16:18:24 -04:00
Andrew Morton
fab2062ee4 [PATCH] git-netdev-all: pc300_tty build fix
In file included from drivers/net/wan/pc300_tty.c:59:
drivers/net/wan/pc300.h:335: error: field 'pppdev' has incomplete type

Cc: Krzysztof Halasa <khc@pm.waw.pl>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-27 16:18:24 -04:00
Andrew Morton
7f38aa0f04 [PATCH] USB Storage: fix Rio Karma eject support build error
In file included from drivers/usb/storage/usb.c:180:
drivers/usb/storage/unusual_devs.h:221: error: 'US_PR_KARMA' undeclared here (not in a function)
drivers/usb/storage/unusual_devs.h:221: error: 'rio_karma_init' undeclared here (not in a function)

Cc: Keith Bennett <keith@mcs.st-and.ac.uk>
Acked-by: Bob Copeland <me@bobcopeland.com>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 12:45:07 -07:00
Andy Gay
5dda171202 USB: Airprime driver improvements to allow full speed EvDO transfers
Adapted from an earlier patch by Greg KH <gregkh@suse.de>.
That patch added multiple read urbs and larger transfer buffers to allow
data transfers at full EvDO speed.

This version includes additional device IDs and fixes a memory leak in
the transfer buffer allocation.

Some (maybe all?) of the supported devices present multiple bulk endpoints,
the additional EPs can be used for control and status functions,
This version allocates 3 EPs by default, that can be changed using
the 'endpoints' module parameter.

Tested with Sierra Wireless EM5625 and MC5720 embedded modules.

Device ID (0x0c88, 0x17da) for the Kyocera Wireless KPC650/Passport
was added but is not yet tested.


From: Andy Gay <andy@andynet.net>
Cc: Kevin Lloyd <linux@sierrawireless.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:59:00 -07:00
David Brownell
fc849b85fb USB: remove OTG build warning
Somewhere along the line, a variable in a USB-OTG codepath
stopped being used; this removes the relevant compiler warning.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:59:00 -07:00
David Brownell
26f953fd88 USB: EHCI update VIA workaround
This revamps handling of the hardware "async advance" IRQ, and its watchdog
timer.  Basically it dis-entangles that important timeout from the others,
simplifying the associated state and code to make it more robust.

This reportedly improves behavior of EHCI on some systems with VIA chips,
and AFAIK won't affect non-VIA hardware.  VIA systems need this code to
recover from silcon bugs whereby the "async advance" IRQ isn't issued.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:59:00 -07:00
Alan Stern
353a4098c6 USB: force root hub resume after power loss
This patch(as785) forces the PM core to resume a root hub after a
power loss during system sleep.  If the root hub had been suspended
before the system sleep then normally the PM core would not resume it
afterward.  Without this resume, various sorts of wakeup events (like
port change events) can get lost.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:59:00 -07:00
Pete Zaitcev
71795c1df3 USB: ohci_usb can oops on shutdown
When ohci-hcd is shutting down (for rmmod or PC-card removal), there is
a window when the device is shut down, HC communication area (->hcca)
is freed, but the core has not called "free_irq" yet. If another device
triggers a shared interrupt in this window, we oops when trying to
access the freed ->hcca.

This patch removes the window by calling free_irq before ->hcca is freed.

The patch is tested at the PC hotplug test rig at Stratus, and with
rmmod by Rafael Wysocki.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:59:00 -07:00
Pete Zaitcev
38e2bfc94e USB: Dealias -110 code (more complete)
The purpose of this patch is to split off the case when a device does
not reply on the lower level (which is reported by HC hardware), and
a case when the device accepted the request, but does not reply at
upper level. This redefinition allows to diagnose issues easier,
without asking the user if the -110 happened "immediately".

The usbmon splits such cases already thanks to its timestamp, but
it's not always available.

I adjusted all drivers which I found affected (by searching for "urb").
Out of tree drivers may suffer a little bit, but I do not expect much
breakage. At worst they may print a few messages.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:59:00 -07:00
Tobias Klauser
ec17cf1cfe USB: Remove unneeded void * casts in core files
The patch removes unneeded casts for the following (void *) pointers:
 - struct file: private
 - struct urb: context
 - struct usb_bus: hcpriv
 - return value of kmalloc()

The patch also contains some whitespace cleanup in the relevant areas.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:59 -07:00
Tony Olech
d774efeabc USB: u132-hcd: host controller driver for ELAN U132 adapter
This "u132-hcd" module is one half of the "driver" for
ELAN's U132 which is a USB to CardBus OHCI controller
adapter. This module needs the "ftdi-elan" module in
order to communicate to CardBus OHCI controller inserted
into the U132 adapter.

When the "ftdi-elan" module detects a supported CardBus
OHCI controller in the U132 adapter it loads this "u132-hcd"
module.

Upon a successful device probe() the single workqueue
is started up which does all the processing of commands
from the USB core that implement the host controller.

The workqueue maintains the urb queues and issues commands
via the functions exported by the "ftdi-elan" module. Each
such command will result in a callback.

Note that the "ftdi-elan" module is a USB client driver.

Note that this "u132-hcd" module is a (cut-down OHCI)
host controller.

Thus we have a topology with the parent of a host controller
being a USB client! This really stresses the USB subsystem
semaphore/mutex handling in the module removal.

Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:59 -07:00
Tony Olech
a5c66e4b24 USB: ftdi-elan: client driver for ELAN Uxxx adapters
This "ftdi-elan" module is one half of the "driver" for
ELAN's Uxxx series adapters which are USB to PCMCIA CardBus
adapters. Currently only the U132 adapter is available and
it's module is called "u132-hcd".

When the USB hot plug subsystem detects a Uxxx series adapter
it should load this module.

Upon a successful device probe() the jtag device file interface
is created and the status workqueue started up.

The jtag device file interface exists for the purpose of
updating the firmware in the Uxxx series adapter, but as
yet it had never been used.

The status workqueue initializes the Uxxx and then sits there
polling the Uxxx until a supported PCMCIA CardBus device is
detected it will start the command and respond workqueues
and then load the module that handles the device. This will
initially be only the u132-hcd module. The status workqueue
then just polls the Uxxx looking for card ejects.

The command and respond workqueues implement a command
sequencer for communicating with the firmware on the other
side of the FTDI chip in the Uxxx. This "ftdi-elan" module
exports some functions to interface with the sequencer.

Note that this module is a USB client driver.

Note that the "u132-hcd" module is a (cut-down OHCI)
host controller.

Thus we have a topology with the parent of a host controller
being a USB client! This really stresses the USB subsystem
semaphore/mutex handling in the module removal.

Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:59 -07:00
Johannes Steingraeber
8fd8013393 usb serial: support Alcor Micro Corp. USB 2.0 TO RS-232 through pl2303 driver
Patch to add support for Alcor Micro Corp. USB 2.0 TO RS-232 converter.
This patch adds VID and PID to pl2303.[ch], adds it to the "HORRIBLE
HACK FOR PL2303" in usb-serial.c and also prevents cdc-acm to claim
driving this device by blacklisting it in hid-core.

Signed-off-by: Johannes Steingraeber <Jo_Stein@web.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:59 -07:00
Paul B Schroeder
3f5429746d USB: Moschip 7840 USB-Serial Driver
Signed-off-by: Paul B Schroeder <pschroeder@uplogix.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:59 -07:00
Sam Hocevar
5638e4d92e USB: add PlayStation 2 Trance Vibrator driver
This patch is a driver for the PlayStation 2 specific Trance Vibrator
device. The only thing that device can do is vibrate at various speeds.

Signed-off-by: Sam Hocevar <sam@zoy.org>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Cc: Luiz Fernando N. Capitulino" <lcapitulino@mandriva.com.br>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:59 -07:00
Steven Haigh
03270634e2 USB: Add ADU support for Ontrak ADU devices
This patch adds support for Ontrak ADU USB devices.

Fixed for printk issues by Randy Dunlap <rdunlap@xenotime.net>

Signed-off-by: Steven Haigh <netwiz@crc.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:59 -07:00
Randy Dunlap
8ac283ad41 aircable: fix printk format warnings
Fix printk format warnings:
drivers/usb/serial/aircable.c:221: warning: format ‘%Zd’ expects type ‘signed size_t’, but argument 4 has type ‘int’
drivers/usb/serial/aircable.c:283: warning: format ‘%Zd’ expects type ‘signed size_t’, but argument 4 has type ‘int’

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:59 -07:00
Manuel Francisco Naranjo
3fe70ba227 Add AIRcable USB Bluetooth Dongle Driver
Add driver for AIRcable USB Bluetooth dongle.

Signed-off-by: Naranjo, Manuel Francisco <naranjo.manuel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:59 -07:00
Mike Isely
78aef519ed cypress_m8: implement graceful failure handling
When receiving a fatal error from the USB core, e.g. EILSEQ (which can
happen if the polling interval is too short), fail gracefully.
Previously the driver would fill the log with useless error messages
or (more alarmingly) silently spin forever trying to write updated
control information to the device.  This change implements a new flag
which if cleared indicates that the driver has failed.  The flag will
be set on initialization, cleared on fatal errors, and anything else
that touches the USB port in the driver will abort if the flag is
clear.  When the flag is cleared, a message will be logged indicating
that the driver has failed.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:59 -07:00
Mike Isely
48298e50e0 cypress_m8: improve control endpoint error handling
Fix usb core function error return checks to look for negative errno
values, not positive errno values.  This bug had rendered those checks
useless.  Also remove attempted error recovery on control endpoints
for EPIPE - with control endpoints EPIPE does not indicate a halted
endpoint so trying to recover with usb_clear_halt() is not the correct
action.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:58 -07:00
Mike Isely
9aa8dae7b1 cypress_m8: use usb_fill_int_urb where appropriate
Rather than directly filling in URB fields, it's safer to use
usb_fill_int_urb().  This improves robustness of the driver; URB
changes in the future will not go uninitialized here.  That point not
withstanding, this driver should at least be self-consistent.  Either
use usb_fill_int_urb() everywhere or don't bother with it all.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:58 -07:00
Mike Isely
0257fa9ffe cypress_m8: use appropriate URB polling interval
The polling interval for the device can't always be 1msec.  If it is
too quick, the device can fail causing a fatal (to the driver) EILSEQ
error from the USB core.  The actual correct value is reported by the
device as part of its configuration data, so use that value as the
default.  On a DeLorme Earthmate for example, the device reports that
it wants a 6msec interval.  As part of this fix, the "interval" module
option has been fixed as well; the device's default can be overridden
by specifying interval=<value> as a module option.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:58 -07:00
Greg Kroah-Hartman
13f4db9e1b USB: fix __must_check warnings in drivers/usb/serial/
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:58 -07:00
Greg Kroah-Hartman
1ee95216c0 USB: fix __must_check warnings in drivers/usb/host/
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:58 -07:00
Greg Kroah-Hartman
657b6717e7 USB: fix __must_check warnings in drivers/usb/input/
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:58 -07:00
Greg Kroah-Hartman
96cede531c USB: fix __must_check warnings in drivers/usb/class/
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:58 -07:00
Greg Kroah-Hartman
e7ccdfec08 USB: fix __must_check warnings in drivers/usb/atm/
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:58 -07:00
Greg Kroah-Hartman
4d42e1bb9e USB: fix __must_check warnings in drivers/usb/misc/
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:58 -07:00
Greg Kroah-Hartman
1b21d5e166 USB: fix __must_check warnings in drivers/usb/core/
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:57 -07:00
Alan Stern
592fbbe4bc USB: fix root-hub resume when CONFIG_USB_SUSPEND is not set
This patch (as786) removes a redundant test and fixes a problem
involving repeated system sleeps when CONFIG_USB_SUSPEND is not set.
During the first wakeup, the root hub's dev.power.power_state.event
field doesn't get updated, causing it not to be suspended during the
second sleep transition.

This takes care of the issue raised by Rafael J. Wysocki and Mattia
Dongili.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:57 -07:00
Alan Stern
02c399ee45 usbcore: remove usb_suspend_root_hub
This patch (as740) removes the existing support for autosuspend of
root hubs.  That support fit in rather awkwardly with the rest of
usbcore and it was used only by ohci-hcd.  It won't be needed any more
since the hub driver will take care of autosuspending all hubs, root
or external.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:57 -07:00
Alan Stern
01d883d44a usbcore: non-hub-specific uses of autosuspend
This patch (as741) makes the non-hub parts of usbcore actually use the
autosuspend facilities added by an earlier patch.

	Devices opened through usbfs are autoresumed and then
	autosuspended upon close.

	Likewise for usb-skeleton.

	Devices are autoresumed for usb_set_configuration.


Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:57 -07:00
Alan Stern
645daaab0b usbcore: add autosuspend/autoresume infrastructure
This patch (as739) adds the basic infrastructure for USB autosuspend
and autoresume.  The main features are:

	PM usage counters added to struct usb_device and struct
	usb_interface, indicating whether it's okay to autosuspend
	them or they are currently in use.

	Flag added to usb_device indicating whether the current
	suspend/resume operation originated from outside or as an
	autosuspend/autoresume.

	Flag added to usb_driver indicating whether the driver
	supports autosuspend.  If not, no device bound to the driver
	will be autosuspended.

	Mutex added to usb_device for protecting PM operations.
	Unlike the device semaphore, the locking rule for the pm_mutex
	is that you must acquire the locks going _up_ the device tree.

	New routines handling autosuspend/autoresume requests for
	interfaces and devices.

	Suspend and resume requests are propagated up the device tree
	(but not outside the USB subsystem).

	work_struct added to usb_device, for carrying out delayed
	autosuspend requests.

	Autoresume added (and autosuspend prevented) during probe and
	disconnect.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:57 -07:00
Alan Stern
b6956ffa59 usbcore: store each usb_device's level in the tree
This patch (as778) adds a field to struct usb_device to store the
device's level in the USB tree.  In itself this number isn't really
important.  But the overhead is very low, and in a later patch it will
be used for preventing bogus warnings from the lockdep checker.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:57 -07:00
Pete Zaitcev
d1ad4ea331 USB: UB: Let cdrecord to see a device with media absent
The command "cdrecord dev=/dev/uba x.iso" prints nasty garbage if a blank
is not in the drive. This happens because drivers have to set req->errors
separately from just returning zero uptodate with end_that_request_first,
end_that_request_last. These functions only set error in BIO, but sg_io()
ignores it.

Since we're on it, let cdrecord access a device when ->changed is set.
It's useful if someone wants to know device capabilities without burning
anything.

Signed-Off-By: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:57 -07:00
Reiner Herrmann
14acdcd321 USB: usb/input/usbmouse.c: whitespace cleanup
Replace spaces with tab and change comment indention for better readability.

Signed-off-by: Reiner Herrmann <reiner@reiner-h.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27 11:58:57 -07:00