]> err.no Git - linux-2.6/log
linux-2.6
17 years agoUSB: CP2101 New Device IDs
Craig Shelley [Fri, 20 Apr 2007 13:37:17 +0000 (14:37 +0100)]
USB: CP2101 New Device IDs

Two new device IDs for CP2101 driver.

Signed-off-by: Craig Shelley <craig@microtron.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: add picdem device to ldusb
Joey Goncalves [Fri, 20 Apr 2007 18:05:54 +0000 (11:05 -0700)]
USB: add picdem device to ldusb

Hi Greg:

I have found that  /drivers/usb/misc/ldusb.c  works with the "PICDEM Full
Speed USB"
http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1406&dDocName=en021940

Signed-off-by: Joey S Goncalves <jgoncalves@peragrin.com>
Cc: Michael Hund <MHund@LD-Didactic.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agousbfs micro optimitation
Oliver Neukum [Fri, 20 Apr 2007 18:50:48 +0000 (20:50 +0200)]
usbfs micro optimitation

the memory barrier is needed only with smp.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: remove ancient/broken CRIS hcd
David Brownell [Sun, 22 Apr 2007 18:05:52 +0000 (11:05 -0700)]
USB: remove ancient/broken CRIS hcd

Remove the old crisv10 HCD ... it can't have built for some time,
doesn't even have a Kconfig entry, was the last driver not to have
been converted to the "hcd" framework, and considering the usbcore
changes since its last patch was merged, has just got to buggy as
all get-out.

I'm told Axis has a new driver, and will be submitting it soon.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Mikael Starvik <mikael.starvik@axis.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agousb ethernet gadget, workaround network stack API glitch
Erik Hovland [Mon, 23 Apr 2007 17:50:15 +0000 (10:50 -0700)]
usb ethernet gadget, workaround network stack API glitch

Another workaround for the glitch in the network layer, whereby one call
ignores the (otherwise kernel-wide) convention that free() calls should
not oops when passed nulls.  This code already handles that API glitch in
most other paths.

From: Erik Hovland <erik@hovland.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: add "busnum" attribute for USB devices
Alan Stern [Wed, 25 Apr 2007 19:15:43 +0000 (15:15 -0400)]
USB: add "busnum" attribute for USB devices

This patch (as903) adds a "busnum" sysfs attribute for USB devices.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: cxacru: ADSL state management
Simon Arlott [Thu, 26 Apr 2007 07:38:05 +0000 (00:38 -0700)]
USB: cxacru: ADSL state management

The device has commands to start/stop the ADSL function, so this adds a
sysfs attribute to allow it to be started/stopped/restarted.  It also stops
polling the device for status when the ADSL function is disabled.

There are no problems with sending multiple start or stop commands, even
with a fast loop of them the device still works.  There is no need to
protect the restart process from further user actions while it's waiting
for 1.5s.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: Duncan Sands <duncan.sands@math.u-psud.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agousbatm: Detect usb device shutdown and ignore failed urbs
Simon Arlott [Thu, 26 Apr 2007 07:38:04 +0000 (00:38 -0700)]
usbatm: Detect usb device shutdown and ignore failed urbs

Detect usb device shutdown and ignore failed urbs.  This happens when the
driver is unloaded or the device is unplugged.

I'm not sure what other urb statuses should be ignored, and the warning
message doesn't need to be shown when the module is unloaded or the device
is removed.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: Duncan Sands <duncan.sands@math.u-psud.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: Remove duplicate define of OHCI_QUIRK_ZFMICRO
S.Caglar Onur [Thu, 26 Apr 2007 07:38:03 +0000 (00:38 -0700)]
USB: Remove duplicate define of OHCI_QUIRK_ZFMICRO

Remove duplicate define of OHCI_QUIRK_ZFMICRO from ftdi-elan.c, its already
defined in drivers/ush/host/ohci.c

Signed-off-by: "S.Caglar Onur" <caglar@pardus.org.tr>
Cc: <tony.olech@elandigitalsystems.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: BandRich BandLuxe HSDPA Data Card Driver
Leon Leong [Thu, 26 Apr 2007 07:38:02 +0000 (00:38 -0700)]
USB: BandRich BandLuxe HSDPA Data Card Driver

Add the detection for the BandRich BandLuxe C100/C100S/C120 HSDPA Data
Card.  With the vendor and product IDs are set properly, the data card can
be detected and works fine.

Signed-off-by: Leon Leong <upleong@bandrich.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB gadget rndis: fix struct rndis_packet_msg_type unaligned bug
Wu, Bryan [Thu, 26 Apr 2007 07:38:01 +0000 (00:38 -0700)]
USB gadget rndis: fix struct rndis_packet_msg_type unaligned bug

skb_push function may return a pointer which is not aligned as required
by struct rndis_packet_msg_type. Using attribute trick to fix this bug.

Signed-off-by: Roy Huang <roy.huang@analog.com>
Signed-off-by: Jie Zhang <jie.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB Elan FTDI: check for driver registration status
Cyrill Gorcunov [Thu, 26 Apr 2007 07:38:00 +0000 (00:38 -0700)]
USB Elan FTDI: check for driver registration status

Add checking of driver registration status and release allocated resources
if it failed.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Cc: "Luiz Fernando N. Capitulino" <lcapitulino@mandriva.com.br>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: sierra: add more checks on shutdown
Greg Kroah-Hartman [Thu, 26 Apr 2007 07:12:01 +0000 (00:12 -0700)]
USB: sierra: add more checks on shutdown

This should help with any potential NULL pointer usages as reported by a
few users.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: add an ohci board-specific quirk
David Brownell [Tue, 17 Apr 2007 20:06:29 +0000 (13:06 -0700)]
USB: add an ohci board-specific quirk

Use the new ohci-pci quirk infrastructure to address the problem it was
created to address: a quirk specific to the Portege 4000, in buzilla as

http://bugzilla.kernel.org/show_bug.cgi?id=6723

Also fix a misuse of "__devinit" for the quirk functions.  It must not
be used without first ensuring that the references from the quirk tables
are gone, and that the function using those quirk tables is also gone.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: usbnet reports minidriver name through ethtool
David Brownell [Tue, 17 Apr 2007 23:10:10 +0000 (16:10 -0700)]
USB: usbnet reports minidriver name through ethtool

Update "usbnet" so that ethtool reports the name of the minidriver in use
(e.g. asix, cdc_ether, dm9601, rndis_host) instead of "usbnet".  This is a
better match to how other network drivers work, resolving a minor open issue.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: rndis_host, various cleanups
David Brownell [Wed, 18 Apr 2007 00:53:20 +0000 (17:53 -0700)]
USB: rndis_host, various cleanups

Cleanups to the rndis_host code, and a tweak that helps talking to
PXA hardware.  Mostly from Ole André Vadla Ravnås <oleavr@gmail.com>

  - Prevent SET_INTERFACE requests, they give PXA hardware bad indigestion
  - For paranoia, null a pointer after freeing its data
  - Wrap up ActiveSync oddities for RNDIS_QUERY in one routine
  - Use that wrapper when getting the Ethernet address
  - Whitespace fixes

Plus add a comment noting the open issues about some RNDIS clients still
needing TBD kinds of browbeating to accept non-jumbogram packets.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: <linux/usb/ch9.h> minor doc update
David Brownell [Wed, 18 Apr 2007 00:51:38 +0000 (17:51 -0700)]
USB: <linux/usb/ch9.h> minor doc update

Minor doc update to <linux/usb/ch9.h> ... say where USB_DT_CS_* came
from and update the definitions to match how they're derived there.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: fix signed jiffies issue in autosuspend logic
Alan Stern [Wed, 11 Apr 2007 16:06:16 +0000 (12:06 -0400)]
USB: fix signed jiffies issue in autosuspend logic

This patch (as897) changes the autosuspend timer code to use the
standard types and macros in dealing with jiffies values.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agousbmon: bus zero
Pete Zaitcev [Wed, 11 Apr 2007 20:47:26 +0000 (13:47 -0700)]
usbmon: bus zero

Add the "bus zero" feature to the usbmon. If a user process specifies bus
with number zero, it receives events from all buses. This is useful when
we wish to see initial enumeration when a bus is created, typically after
a modprobe. Until now, an application had to loop until a new bus could
be open, then start capturing on it. This procedure was cumbersome and
could lose initial events. Also, often it's too bothersome to find exactly
to which bus a specific device is attached.

Paolo Albeni provided the original concept implementation. I added the
handling of "bus->monitored" flag and generally fixed it up.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: Allow transfer_buffer with transfer_dma
Tony Lindgren [Sun, 1 Apr 2007 01:15:43 +0000 (18:15 -0700)]
USB: Allow transfer_buffer with transfer_dma

Some host controller drivers may need a PIO fallback when a DMA channel
is temporarily unavailable.  This patch provides an address that such
drivers can use for PIO in those cases, and nulls that field out when
no such address is available (highmem) which should help usbmon.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: cleanup ofd adutux
Oliver Neukum [Mon, 2 Apr 2007 13:16:36 +0000 (15:16 +0200)]
USB: cleanup ofd adutux

this driver does
- ignore errors during open
- submit a running urb
- use down_interruptible not handling signals
- GFP_KERNEL with a spinlock held

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: add "last_busy" field for use in autosuspend
Alan Stern [Tue, 27 Mar 2007 17:33:59 +0000 (13:33 -0400)]
USB: add "last_busy" field for use in autosuspend

This patch (as877) adds a "last_busy" field to struct usb_device, for
use by the autosuspend framework.  Now if an autosuspend call comes at
a time when the device isn't busy but hasn't yet been idle for long
enough, the timer can be set to exactly the desired value.  And we
will be ready to handle things like HID drivers, which can't maintain
a useful usage count and must rely on the time-of-last-use to decide
when to autosuspend.

The patch also makes some related minor improvements:

Move the calls to the autosuspend condition-checking routine
into usb_suspend_both(), which is the only place where it
really matters.

If the autosuspend timer is already running, don't stop
and restart it.

Replace immediate returns with gotos so that the optional
debugging ouput won't be bypassed.

If autoresume is disabled but the device is already awake,
don't return an error for an autoresume call.

Don't try to autoresume a device if it isn't suspended.
(Yes, this undercuts the previous change -- so sue me.)

Don't duplicate existing code in the autosuspend work routine.

Fix the kerneldoc in usb_autopm_put_interface(): If an
autoresume call fails, the usage counter is left unchanged.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: whiteheat: Convert to generic boolean
Richard Knutsson [Tue, 27 Mar 2007 06:00:28 +0000 (22:00 -0800)]
USB: whiteheat: Convert to generic boolean

Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se>
Acked-by: Stuart MacDonald <stuartm@connecttech.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: fix omninet write vs. close race
Oliver Neukum [Tue, 27 Mar 2007 14:02:34 +0000 (16:02 +0200)]
USB: fix omninet write vs. close race

omninet kills all URBs in close. However write() returns as soon as
the URB has been submitted. Killing the last URB means a race that
can lose that date written in the last call to write().
As a fix this is moved to shutdown().

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: fix error handling for mct_u232
Oliver Neukum [Thu, 29 Mar 2007 08:45:17 +0000 (10:45 +0200)]
USB: fix error handling for mct_u232

we report errors to the caller. THis patch adds error handling to the driver.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: fix error handling in kl5kusb
Oliver Neukum [Thu, 29 Mar 2007 09:23:54 +0000 (11:23 +0200)]
USB: fix error handling in kl5kusb

- report errors
- cleanup in error case
- use of endianness macros

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: fix catc error handling
Oliver Neukum [Fri, 30 Mar 2007 11:11:00 +0000 (13:11 +0200)]
USB: fix catc error handling

this driver ignores errors while starting the transmit queue. It will
never be reported stopped as the completion handler won't run
and it will never be started again as it will be considered started.
This patch adds error handling.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: cypress_cy7c63: race disconnect/sysfs read-write leading to following NULL pointer
Oliver Neukum [Fri, 30 Mar 2007 08:52:16 +0000 (10:52 +0200)]
USB: cypress_cy7c63: race disconnect/sysfs read-write leading to following NULL pointer

this driver sets intfdata to NULL while it still can be read and happily followed.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: fix ark3116 memory leak
Oliver Neukum [Mon, 26 Mar 2007 16:12:44 +0000 (18:12 +0200)]
USB: fix ark3116 memory leak

this driver has a memory leak in an error case.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: ftdi_sio: Add USB ID of ADSTech USBX-707
Jelle Foks [Mon, 26 Mar 2007 01:08:35 +0000 (21:08 -0400)]
USB: ftdi_sio: Add USB ID of ADSTech USBX-707

This patch adds the USB ID of the ADS Tech USBX-707 USB IR blaster (that
comes with the ADS Tech PTV-305 grabber card), which has a ftdi232bm
inside hooked up to a pic.

With this it should be fairly straightforward to make at least lirc
receiving work with this device. I will submit a patch to lirc for that
as soon as I have one ready, I'm getting data with minicom with this
patch, but need to figure out some more details such as best/correct
baudrate.

Signed-off-by: Jelle Foks <jelle@foks.8m.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: fix race in ftdio_write
Oliver Neukum [Fri, 23 Mar 2007 13:30:16 +0000 (14:30 +0100)]
USB: fix race in ftdio_write

this has the same race as the visor driver. The counter must be incremented
under the lock it is checked under.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: fix race in visor_write
Oliver Neukum [Fri, 23 Mar 2007 10:58:03 +0000 (11:58 +0100)]
USB: fix race in visor_write

this fixes a small race in visor_write.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: aircable cleanup
Oliver Neukum [Mon, 26 Mar 2007 14:55:16 +0000 (16:55 +0200)]
USB: aircable cleanup

- proper endianness macros
- scheduling in interrupt in error case

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Naranjo Manuel Francisco <naranjo.manuel@gmail.com>
17 years agoUSB: make usbdevices export their device nodes instead of using a separate class
Kay Sievers [Tue, 13 Mar 2007 14:59:31 +0000 (15:59 +0100)]
USB: make usbdevices export their device nodes instead of using a separate class

o The "real" usb-devices export now a device node which can
  populate /dev/bus/usb.

o The usb_device class is optional now and can be disabled in the
  kernel config. Major/minor of the "real" devices and class devices
  are the same.

o The environment of the usb-device event contains DEVNUM and BUSNUM to
  help udev and get rid of the ugly udev rule we need for the class
  devices.

o The usb-devices and usb-interfaces share the same bus, so I used
  the new "struct device_type" to let these devices identify
  themselves. This also removes the current logic of using a magic
  platform-pointer.
  The name of the device_type is also added to the environment
  which makes it easier to distinguish the different kinds of devices
  on the same subsystem.

  It looks like this:
    add@/devices/pci0000:00/0000:00:1d.1/usb2/2-1
    ACTION=add
    DEVPATH=/devices/pci0000:00/0000:00:1d.1/usb2/2-1
    SUBSYSTEM=usb
    SEQNUM=1533
    MAJOR=189
    MINOR=131
    DEVTYPE=usb_device
    PRODUCT=46d/c03e/2000
    TYPE=0/0/0
    BUSNUM=002
    DEVNUM=004

This udev rule works as a replacement for usb_device class devices:
  SUBSYSTEM=="usb", ACTION=="add", ENV{DEVTYPE}=="usb_device", \
    NAME="bus/usb/$env{BUSNUM}/$env{DEVNUM}", MODE="0644"

Updated patch, which needs the device_type patches in Greg's tree.

I also got a bugzilla assigned for this. :)
  https://bugzilla.novell.com/show_bug.cgi?id=250659

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: gadget-storage needs BLOCK
Randy Dunlap [Wed, 21 Mar 2007 20:57:51 +0000 (13:57 -0700)]
USB: gadget-storage needs BLOCK

With CONFIG_BLOCK=n, this build error happens:
WARNING: "bdev_read_only" [drivers/usb/gadget/g_file_storage.ko] undefined!

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: add power/level sysfs attribute
Alan Stern [Tue, 20 Mar 2007 18:59:39 +0000 (14:59 -0400)]
USB: add power/level sysfs attribute

This patch (as874) adds another piece to the user-visible part of the
USB autosuspend interface.  The new power/level sysfs attribute allows
users to force the device on (with autosuspend off), force the device
to sleep (with autoresume off), or return to normal automatic operation.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: ati_remote2: Add channel support
Peter Stokes [Sat, 17 Mar 2007 14:14:12 +0000 (16:14 +0200)]
USB: ati_remote2: Add channel support

Add logical channel support for ATI Remote Wonder II

The ATI Remote Wonder II can be configured with one of 16 unique logical
channels. Allowing up to 16 remotes to be used independently within
range of each other. This change adds functionality to configure the
receiver and filter the input data to respond or exclude remotes
configured with different logical channels.

Signed-off-by: Peter Stokes <linux@dadeos.freeserve.co.uk>
Acked-by: Ville Syrjala <syrjala@sci.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: sierra close race
Oliver Neukum [Tue, 20 Mar 2007 12:54:05 +0000 (13:54 +0100)]
USB: sierra close race

the sierra driver does not directly use usb_kill_urb(). It uses a wrapper.
This wrapper means that callbacks which are running are not killed during
close, resubmitting and illicitly pushing data into the tty layer.
The whole purpose of usb_kill_urb() is subverted. The wrapper must be removed.
The same problem as the option driver.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: option close race
Oliver Neukum [Tue, 20 Mar 2007 12:41:21 +0000 (13:41 +0100)]
USB: option close race

the option driver does not directly use usb_kill_urb(). It uses a wrapper.
This wrapper means that callbacks which are running are not killed during
close, resubmitting and illicitly pushing data into the tty layer.
The whole purpose of usb_kill_urb() is subverted. The wrapper must be removed.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Matthias Urlichs <smurf@smurf.noris.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: omninet memory leak in error case
Oliver Neukum [Tue, 20 Mar 2007 12:15:05 +0000 (13:15 +0100)]
USB: omninet memory leak in error case

memory allocated must be freed in the error case.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUHCI: Add some WARN_ON()s
Alan Stern [Mon, 19 Mar 2007 19:33:11 +0000 (15:33 -0400)]
UHCI: Add some WARN_ON()s

This patch (as872) adds some WARN_ON()s to various error checks which
are never supposed to fail.  Unsettlingly, one of them has shown up in
a user's log!  Maybe making the warning more visible and having the
call-stack information available will help pinpoint the source of the
problem.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: fix endianness in mos7720
Oliver Neukum [Mon, 19 Mar 2007 12:58:29 +0000 (13:58 +0100)]
USB: fix endianness in mos7720

there's code unclean w.r.t. endianness in the mos7720 driver.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: gtco.c: fix a use-before-check
Adrian Bunk [Mon, 19 Mar 2007 09:26:32 +0000 (10:26 +0100)]
USB: gtco.c: fix a use-before-check

NULL checks should be before the first dereference.

Spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: iowarrior.c: fix NULL dereference
Oliver Neukum [Mon, 19 Mar 2007 10:39:13 +0000 (11:39 +0100)]
USB: iowarrior.c: fix NULL dereference

Am Montag, 19. 2007 10:25 schrieb Adrian Bunk:
> The Coverity checker spotted the following NULL dereference:

And this fixes an oops upon allocation failures.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: dm9601: fix sparse NULL warnings
Randy Dunlap [Sat, 17 Mar 2007 01:33:13 +0000 (18:33 -0700)]
USB: dm9601: fix sparse NULL warnings

Fix sparse NULL warnings:

drivers/usb/net/dm9601.c:88:23: warning: Using plain integer as NULL pointer
drivers/usb/net/dm9601.c:174:22: warning: Using plain integer as NULL pointer

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: io_edgeport: Convert to generic boolean
Richard Knutsson [Sat, 17 Mar 2007 00:35:53 +0000 (01:35 +0100)]
USB: io_edgeport: Convert to generic boolean

Signed-off-by: Richard Knutsson <ricknu-0@student.ltu.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: overhaul of mos7840 driver
Oliver Neukum [Fri, 16 Mar 2007 19:28:28 +0000 (20:28 +0100)]
USB: overhaul of mos7840 driver

This fixes:

- breaking DMA rules about buffers
- usage of _global_ variables to save a single device's attributes
- racy access to urb->status
- smp monotonity issue with statistics
- use of one buffer for many simultaneous URBs
- error handling introduced
- several instances of following NULL pointers
- use after free
- unnecessary GFP_ATOMIC
- GFP_KERNEL in interrupt
- various cleanups
- write room granularity issue that bit cdc-acm
- race in shutdown

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: io_edgeport race condition in counters
Oliver Neukum [Thu, 15 Mar 2007 14:27:17 +0000 (15:27 +0100)]
USB: io_edgeport race condition in counters

io_edgeport is using a global variable without locking.
This is _the_ classical race condition. This patch switches to atomic_t.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoEHCI: add delay to bus_resume before accessing ports
Alan Stern [Thu, 15 Mar 2007 19:54:30 +0000 (15:54 -0400)]
EHCI: add delay to bus_resume before accessing ports

This patch (as870) adds a delay to ehci-hcd's bus_resume routine.
Apparently there are controllers and/or BIOSes out there which need
such a delay to get the ports back into their correct state.  This
fixes Bugzilla #8190.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: Allow autosuspend delay to equal 0
Alan Stern [Tue, 13 Mar 2007 20:39:15 +0000 (16:39 -0400)]
USB: Allow autosuspend delay to equal 0

This patch (as867) adds an entry for the new power/autosuspend
attribute in Documentation/ABI/testing, and it changes the behavior of
the delay value.  Now a delay of 0 means to autosuspend as soon as
possible, and negative values will prevent autosuspend.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: separate autosuspend from external suspend
Alan Stern [Tue, 13 Mar 2007 20:37:30 +0000 (16:37 -0400)]
USB: separate autosuspend from external suspend

This patch (as866) adds new entry points for external USB device
suspend and resume requests, as opposed to internally-generated
autosuspend or autoresume.  It also changes the existing
remote-wakeup code paths to use the new routines, since remote wakeup
is not the same as autoresume.

As part of the change, it turns out to be necessary to do remote
wakeup of root hubs from a workqueue.  We had been using khubd, but it
does autoresume rather than an external resume.  Using the
ksuspend_usb_wq workqueue for this purpose seemed a logical choice.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: help text for mos 7720 driver
Oliver Neukum [Wed, 14 Mar 2007 14:23:56 +0000 (15:23 +0100)]
USB: help text for mos 7720 driver

this driver's help text incorrectly claims to support only single port
devices.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agomos7720 update
Oliver Neukum [Wed, 14 Mar 2007 14:22:25 +0000 (15:22 +0100)]
mos7720 update

this driver has an interesting way of handling ENOMEM: complain and ignore.
If you decide to live with allocation failures, you must

1. guard against URBs without corresponding buffers
2. complete allocation failures
3. always test entries for NULL before you follow the pointers

This patch does so.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoehci-fsl: change SI_CTRL, PRI_CTRL register offsets according to errata
Christian Engelmayer [Mon, 12 Mar 2007 08:08:36 +0000 (09:08 +0100)]
ehci-fsl: change SI_CTRL, PRI_CTRL register offsets according to errata

Correct the offsets of the SI_CTRL, PRI_CTRL registers according to
the Reference Manual errata sheet in order to prevent unwanted
settings regarding burst transactions and priority states.

Signed-off-by: Christian Engelmayer <Christian.Engelmayer@frequentis.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: fix race in HCD removal
Alan Stern [Tue, 13 Mar 2007 15:10:52 +0000 (11:10 -0400)]
USB: fix race in HCD removal

This patch (as865) fixes a race in the HCD removal code discovered by
Milan Plzik.  Arrival of an interrupt after the root hub was
unregistered could cause the root-hub status timer to start up, even
after it was supposed to have been shut down.  The problem is fixed by
moving the del_timer_sync() call to after the HCD's stop() method, at
which time IRQ generation should be disabled.

Cc: Milan Plzik <milan.plzik@gmail.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: MAINTAINERS: cxacru
Simon Arlott [Tue, 6 Mar 2007 10:47:46 +0000 (02:47 -0800)]
USB: MAINTAINERS: cxacru

I've acquired a second device for testing and plan to make some changes in
the near future to export all the device stats to sysfs (based on my
proposed patch to add them to the proc file ~2007-01-30).

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Acked-by: Duncan Sands <baldrick@free.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: cxacru: export detailed device info through sysfs
Simon Arlott [Tue, 6 Mar 2007 10:47:45 +0000 (02:47 -0800)]
USB: cxacru: export detailed device info through sysfs

When the device is polled for status there is a lot of useful status
information available that is ignored.  This patch stores the device info
array when the status is polled and adds sysfs files to the usb device to
allow userspace to query it.  Since the device updates its status
internally once a second the poll time is changed to this, and
round_jiffies_relative is used to avoid waking the cpu unnecessarily.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: Duncan Sands <duncan.sands@free.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agousbatm: create sysfs link "device" from atm class device to usb interface
Simon Arlott [Tue, 6 Mar 2007 10:47:43 +0000 (02:47 -0800)]
usbatm: create sysfs link "device" from atm class device to usb interface

There is currently no path from the ATM device in /sys to the USB device's
interface that the driver is using; this patch creates a "device" symlink.  It
is then possible to get to the cxacru ADSL statistics
(http://lkml.org/lkml/2007/2/23/328):

/sys/class/atm/cxacru0/device $ ls *_rate *_margin *_attenuation
downstream_attenuation  downstream_snr_margin  upstream_rate
downstream_rate         upstream_attenuation   upstream_snr_margin

If this link is not appropriate I'd have to create device files in
/sys/class/atm/cxacru0 instead - which seems less appropriate since the ADSL
statistics are for the USB device not ATM (which is running over the ADSL).

[akpm@linux-foundation.org: cleanups]
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: Duncan Sands <duncan.sands@math.u-psud.fr>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: unnecessary GFP_ATOMIC in mos7720 driver
Oliver Neukum [Tue, 6 Mar 2007 15:21:22 +0000 (16:21 +0100)]
USB: unnecessary GFP_ATOMIC in mos7720 driver

GFP_KERNEL will do.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agousbcore: move usb_autosuspend_work
Alan Stern [Fri, 9 Mar 2007 20:41:13 +0000 (15:41 -0500)]
usbcore: move usb_autosuspend_work

This patch (as864) moves the work routine for USB autosuspend from one
source file to another.  This permits the removal of one whole global
symbol (!) and should smooth the way for more changes in the future.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agolibusual: change block scope variable to function scope
Pete Zaitcev [Fri, 9 Mar 2007 04:02:26 +0000 (20:02 -0800)]
libusual: change block scope variable to function scope

Someone changed the code to kthread and used his style instead of mine.

The problem with the block variables is that they provoke shadowing,
which is actually exactly what has happened in my other tree which
has the class patch.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoub: Bind to first endpoint, not to last
Pete Zaitcev [Fri, 9 Mar 2007 03:56:23 +0000 (19:56 -0800)]
ub: Bind to first endpoint, not to last

The usb-storage switched to binding to first endpoint recently. Apparently,
there are devices out there with extra endpoints. It is perfectly legal.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: cdc-acm: export parsed capabilities through sysfs
Oliver Neukum [Tue, 27 Feb 2007 14:28:55 +0000 (15:28 +0100)]
USB: cdc-acm: export parsed capabilities through sysfs

this patch exports the attributes cdc-acm knows about a device through sysfs.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: additional structure from cdc spec
Oliver Neukum [Tue, 27 Feb 2007 10:30:24 +0000 (11:30 +0100)]
USB: additional structure from cdc spec

this adds another structure for CDC devices to cdc.h.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agousbmon: Extended text API
Pete Zaitcev [Sun, 25 Feb 2007 03:27:33 +0000 (19:27 -0800)]
usbmon: Extended text API

This patch adds a new text API, codenamed '1u', which captures more URB
fields than old '1t' interface did. Also the '1u' text API is compatible
with the future "bus zero" extension.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: kill BKL in usblcd
Oliver Neukum [Mon, 5 Mar 2007 14:11:14 +0000 (15:11 +0100)]
USB: kill BKL in usblcd

this patch removes usage of BKL from usblcd, which got it from the old
skeleton driver.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: kill BKL in skeleton driver
Oliver Neukum [Thu, 1 Mar 2007 22:07:32 +0000 (23:07 +0100)]
USB: kill BKL in skeleton driver

Iet's kill BKL where we can. This is relative to the last patch to the
skeleton driver.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: fix skeleton driver
Oliver Neukum [Thu, 1 Mar 2007 13:31:02 +0000 (14:31 +0100)]
USB: fix skeleton driver

compilation of the skeleton driver is currently broken. It doesn't compile.
So while I am it:

- fix typo
- add comments to answer common questions
- actually allow autosuspend in the driver struct
- increase paralellism by restricting code under locks

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: pxa2xx_udc: fix hardcoded irq number
Milan Svoboda [Tue, 27 Feb 2007 09:20:09 +0000 (09:20 +0000)]
USB: pxa2xx_udc: fix hardcoded irq number

This patch changes last use of hardcoded number of irq to
use platfrom_get_irq.

Signed-off-by: Milan Svoboda <msvoboda@ra.rockwell.com>
Acked-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agopxa2xx_udc: cleanups, use platform_get_irq
David Brownell [Sat, 24 Feb 2007 20:23:52 +0000 (12:23 -0800)]
pxa2xx_udc: cleanups, use platform_get_irq

Make the pxa2xx_udc driver fetch its IRQ from platform resources
rather than using compile-time constants, so that it works properly
on IXP4xx systems not just PXA21x/25x/26x.

Other updates:
 - Do that using platform_get_irq()
 - Switch to platform_driver_probe()
 - Handle device_add() errors
 - Remove "function" sysfs attribute and its potential errors
 - Whitespace cleanups

Signed-off-by: Milan Svoboda <msvoboda@ra.rockwell.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoAdding PID of SHARP S01SH for ipaq.c
Norihiko Tomiyama [Thu, 5 Apr 2007 01:05:40 +0000 (10:05 +0900)]
Adding PID of SHARP S01SH for ipaq.c

I write a patch adding support "SHARP EMONE(S01SH)" device for ipaq.c.
EMONE is a PDA with built-in HSDPA function.

From: Norihiko Tomiyama <norihiko.tomiyama@ctc-g.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoMerge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6
Linus Torvalds [Fri, 27 Apr 2007 19:58:54 +0000 (12:58 -0700)]
Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: (46 commits)
  dev_dbg: check dev_dbg() arguments
  drivers/base/attribute_container.c: use mutex instead of binary semaphore
  mod_sysfs_setup() doesn't return errno when kobject_add_dir() failure occurs
  s2ram: add arch irq disable/enable hooks
  define platform wakeup hook, use in pci_enable_wake()
  security: prevent permission checking of file removal via sysfs_remove_group()
  device_schedule_callback() needs a module reference
  s390: cio: Delay uevents for subchannels
  sysfs: bin.c printk fix
  Driver core: use mutex instead of semaphore in DMA pool handler
  driver core: bus_add_driver should return an error if no bus
  debugfs: Add debugfs_create_u64()
  the overdue removal of the mount/umount uevents
  kobject: Comment and warning fixes to kobject.c
  Driver core: warn when userspace writes to the uevent file in a non-supported way
  Driver core: make uevent-environment available in uevent-file
  kobject core: remove rwsem from struct subsystem
  qeth: Remove usage of subsys.rwsem
  PHY: remove rwsem use from phy core
  IEEE1394: remove rwsem use from ieee1394 core
  ...

17 years agodev_dbg: check dev_dbg() arguments
Dan Williams [Thu, 26 Apr 2007 07:12:10 +0000 (00:12 -0700)]
dev_dbg: check dev_dbg() arguments

Duplicate what Zach Brown did for pr_debug in commit
8b2a1fd1b394c60eaa2587716102dd5e9b4e5990

[akpm@linux-foundation.org: fix a couple of things which broke]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agodrivers/base/attribute_container.c: use mutex instead of binary semaphore
Matthias Kaehlcke [Thu, 26 Apr 2007 07:12:09 +0000 (00:12 -0700)]
drivers/base/attribute_container.c: use mutex instead of binary semaphore

use mutex instead of binary semaphore in
drivers/base/attribute_container.c

Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agomod_sysfs_setup() doesn't return errno when kobject_add_dir() failure occurs
Akinobu Mita [Thu, 26 Apr 2007 07:12:09 +0000 (00:12 -0700)]
mod_sysfs_setup() doesn't return errno when kobject_add_dir() failure occurs

mod_sysfs_setup() doesn't return an errno when kobject_add_dir() for module
"holders" directory fails.  So caller of mod_sysfs_setup() will keep going
and get oops.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agos2ram: add arch irq disable/enable hooks
Johannes Berg [Thu, 26 Apr 2007 09:43:58 +0000 (11:43 +0200)]
s2ram: add arch irq disable/enable hooks

After some more discussion this patch replaces it:

From: Johannes Berg <johannes@sipsolutions.net>
Subject: suspend: add arch irq disable/enable hooks

For powermac, we need to do some things between suspending devices and
device_power_off, for example setting the decrementer. This patch
allows architectures to define arch_s2ram_{en,dis}able_irqs in their
asm/suspend.h to have control over this step.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agodefine platform wakeup hook, use in pci_enable_wake()
David Brownell [Thu, 26 Apr 2007 07:12:06 +0000 (00:12 -0700)]
define platform wakeup hook, use in pci_enable_wake()

This defines a platform hook to enable/disable a device as a wakeup event
source.  It's initially for use with ACPI, but more generally it could be used
whenever enable_irq_wake()/disable_irq_wake() don't suffice.

The hook is called -- if available -- inside pci_enable_wake(); and the
semantics of that call are enhanced so that support for PCI PME# is no longer
needed.  It can now work for devices with "legacy PCI PM", when platform
support allows it.  (That support would use some board-specific signal for for
the same purpose as PME#.)

[akpm@linux-foundation.org: Make it compile with CONFIG_PM=n]
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agosecurity: prevent permission checking of file removal via sysfs_remove_group()
James Morris [Thu, 26 Apr 2007 07:12:05 +0000 (00:12 -0700)]
security: prevent permission checking of file removal via sysfs_remove_group()

Prevent permission checking from being performed when the kernel wants to
unconditionally remove a sysfs group, by introducing an kernel-only variant
of lookup_one_len(), lookup_one_len_kern().

Additionally, as sysfs_remove_group() does not check the return value of
the lookup before using it, a BUG_ON has been added to pinpoint the cause
of any problems potentially caused by this (and as a form of annotation).

Signed-off-by: James Morris <jmorris@namei.org>
Cc: Nagendra Singh Tomar <nagendra_tomar@adaptec.com>
Cc: Tejun Heo <htejun@gmail.com>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: Eric Paris <eparis@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agodevice_schedule_callback() needs a module reference
Alan Stern [Thu, 26 Apr 2007 07:12:04 +0000 (00:12 -0700)]
device_schedule_callback() needs a module reference

This patch (as896b) fixes an oversight in the design of
device_schedule_callback().  It is necessary to acquire a reference to the
module owning the callback routine, to prevent the module from being
unloaded before the callback can run.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Satyam Sharma <satyam.sharma@gmail.com>
Cc: Neil Brown <neilb@suse.de>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agos390: cio: Delay uevents for subchannels
Cornelia Huck [Thu, 26 Apr 2007 07:12:03 +0000 (00:12 -0700)]
s390: cio: Delay uevents for subchannels

We often have the situation that we register a subchannel and start device
recognition, only to find out that the device is not usable after all, which
triggers an unregister of the subchannel.  This often happens on hundreds of
subchannels on a LPAR, leading to a storm of events which aren't of any use.
Therefore, use uevent_suppress to delay the KOBJ_ADD uevent for a subchannel
until we know that its ccw_device is to be registered.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Eric Rannaud <eric.rannaud@gmail.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agosysfs: bin.c printk fix
Andrew Morton [Thu, 26 Apr 2007 07:12:10 +0000 (00:12 -0700)]
sysfs: bin.c printk fix

fs/sysfs/bin.c: In function 'read':
fs/sysfs/bin.c:77: warning: format '%zd' expects type 'signed size_t', but argument 4 has type 'int'

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoDriver core: use mutex instead of semaphore in DMA pool handler
Matthias Kaehlcke [Tue, 24 Apr 2007 20:45:25 +0000 (22:45 +0200)]
Driver core: use mutex instead of semaphore in DMA pool handler

the DMA pool handler uses a semaphore as mutex. use the mutex API
instead of the (binary) semaphore

Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agodriver core: bus_add_driver should return an error if no bus
Greg Kroah-Hartman [Fri, 20 Apr 2007 18:29:52 +0000 (11:29 -0700)]
driver core: bus_add_driver should return an error if no bus

As pointed out by Dave Jones.

Cc: Dave Jones <davej@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agodebugfs: Add debugfs_create_u64()
Michael Ellerman [Tue, 17 Apr 2007 05:59:36 +0000 (15:59 +1000)]
debugfs: Add debugfs_create_u64()

I went to use this the other day, only to find it didn't exist.

It's a straight copy of the debugfs u32 code, then s/u32/u64/. A quick
test shows it seems to be working.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agothe overdue removal of the mount/umount uevents
Adrian Bunk [Fri, 6 Apr 2007 10:21:45 +0000 (12:21 +0200)]
the overdue removal of the mount/umount uevents

This patch contains the overdue removal of the mount/umount uevents.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agokobject: Comment and warning fixes to kobject.c
Eric W. Biederman [Fri, 6 Apr 2007 16:47:11 +0000 (10:47 -0600)]
kobject: Comment and warning fixes to kobject.c

This dots some i's and crosses some t's after left over from when
kobject_kset_add_dir was built from kobject_add_dir.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoDriver core: warn when userspace writes to the uevent file in a non-supported way
Kay Sievers [Thu, 5 Apr 2007 23:40:38 +0000 (01:40 +0200)]
Driver core: warn when userspace writes to the uevent file in a non-supported way

In the future we will allow the uevent type to be written to the uevent
file to trigger the different types of uevents.  But for now, as we only
support the ADD event, warn if userspace tries to write anything else to
this file.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoDriver core: make uevent-environment available in uevent-file
Kay Sievers [Thu, 5 Apr 2007 23:40:38 +0000 (01:40 +0200)]
Driver core: make uevent-environment available in uevent-file

This allows sysfs to show the environment variables that are available
if the uevent happens.  This lets userspace not have to cache all of
this information as the kernel already knows it.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agokobject core: remove rwsem from struct subsystem
Greg Kroah-Hartman [Mon, 9 Apr 2007 15:52:31 +0000 (11:52 -0400)]
kobject core: remove rwsem from struct subsystem

It isn't used at all by the driver core anymore, and the few usages of
it within the kernel have now all been fixed as most of them were using
it incorrectly.  So remove it.

Now the whole struct subsys can be removed from the system, but that's
for a later patch...

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoqeth: Remove usage of subsys.rwsem
Cornelia Huck [Tue, 17 Apr 2007 11:01:38 +0000 (13:01 +0200)]
qeth: Remove usage of subsys.rwsem

the current driver tree contains the removal of subsys.rwsem.
Unfortunately, this breaks qeth. However, it should be no problem to
fix the walking of the devices for /proc/qeth:

No need to take subsys.rwsem during walking the devices,
driver_find_devices() should already suffice.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoPHY: remove rwsem use from phy core
Greg Kroah-Hartman [Mon, 9 Apr 2007 15:52:31 +0000 (11:52 -0400)]
PHY: remove rwsem use from phy core

The subsystem rwsem is not used by the driver core at all, so the use of
it in the phy code doesn't make any sense.  They might possibly
want to use a local lock, but I am unsure about that.

Cc: netdev <netdev@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoIEEE1394: remove rwsem use from ieee1394 core
Greg Kroah-Hartman [Mon, 9 Apr 2007 15:52:31 +0000 (11:52 -0400)]
IEEE1394: remove rwsem use from ieee1394 core

The subsystem rwsem is not used by the driver core at all, so the use of
it in the ieee1394 code doesn't make any sense.  They might possibly
want to use a local lock, but as most of these operations are already
protected by a local lock, it really doesn't look like it would be
needed.

Cc: Ben Collins <bcollins@debian.org>
Cc: Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: linux1394-devel <linux1394-devel@lists.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoIDE: remove rwsem use from ide-proc core
Greg Kroah-Hartman [Mon, 9 Apr 2007 15:52:31 +0000 (11:52 -0400)]
IDE: remove rwsem use from ide-proc core

The subsystem rwsem is not used by the driver core at all, so the use of
it in the ide-proc code of it doesn't make any sense.  Perhaps a local
lock might be needed, but I do not really think so.

Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: linux ide <linux-ide@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoInput: gameport - do not touch bus's rwsem
Dmitry Torokhov [Tue, 10 Apr 2007 04:40:48 +0000 (00:40 -0400)]
Input: gameport - do not touch bus's rwsem

The subsystem rwsem is not used by the driver core at all, so there is
no point in trying to access it.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoInput: serio - do not touch bus's rwsem
Dmitry Torokhov [Tue, 10 Apr 2007 04:40:27 +0000 (00:40 -0400)]
Input: serio - do not touch bus's rwsem

The subsystem rwsem is not used by the driver core at all, so there is
no point in trying to access it.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoPNP: stop using the subsystem rwsem
Greg Kroah-Hartman [Mon, 9 Apr 2007 15:52:31 +0000 (11:52 -0400)]
PNP: stop using the subsystem rwsem

The rwsem is not used to protect anything, so the use of it by the PNP
subsystem isn't really useful, and it's doubtful if it really did anything or
not.  So I've removed it.

Cc: Adam Belay <ambx1@neo.rr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoUSB: remove use of the bus rwsem, as it doesn't really protect anything.
Greg Kroah-Hartman [Mon, 9 Apr 2007 15:52:31 +0000 (11:52 -0400)]
USB: remove use of the bus rwsem, as it doesn't really protect anything.

The driver core stopped using the rwsem a long time ago, yet the USB
core still grabbed the lock, thinking it protected something.  This
patch removes that useless use.

Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Oliver Neukum <oneukum@suse.de>
Cc: David Brownell <david-b@pacbell.net>
Cc: linux-usb-devel <linux-usb-devel@lists.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoSCSI: use the proper semaphore to protect the class lists
Greg Kroah-Hartman [Mon, 9 Apr 2007 15:52:31 +0000 (11:52 -0400)]
SCSI: use the proper semaphore to protect the class lists

SCSI was using the incorrect lock to protect walking the list of all
devices in the class.  This patch fixes this.

Cc: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agoDriver core: remove use of rwsem
Greg Kroah-Hartman [Mon, 9 Apr 2007 15:52:31 +0000 (11:52 -0400)]
Driver core: remove use of rwsem

This lock is never used by the rest of the driver core, so the fact that
we are grabbing it here means it isn't correct...

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
17 years agokobject: kobject_add() reference leak
Cornelia Huck [Tue, 10 Apr 2007 12:35:27 +0000 (14:35 +0200)]
kobject: kobject_add() reference leak

We leak a reference if we attempt to add a kobject with no name.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>