This patch converts the inode semaphore to a mutex. I have tested it on
XFS and compiled as much as one can consider on an ia64. Anyway your
luck with it might be different.
Modified-by: NIngo Molnar <mingo@elte.hu>

(finished the conversion)
Signed-off-by: NJes Sorensen <jes@sgi.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

Use ARRAY_SIZE macro instead of sizeof(x)/sizeof(x[0]) and remove
duplicates of ARRAY_SIZE. Some trailing whitespaces are also removed.

Patch is compile-tested on i386.
Signed-off-by: NTobias Klauser <tklauser@nuerscht.ch>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch (as613) moves the updates to hcd->state in the dummy_hcd
driver to where they now belong.  It also uses the new
HC_FLAG_HW_ACCESSIBLE flag in a way that simulates a real PCI
controller, and it adds checks for attempts to resume the bus while the
controller is suspended or to suspend the controller while the bus is
active.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch (as612) removes the "volatile" declarations from the
file-storage gadget.  It turns out that they aren't needed for anything
much; adding a few memory barriers does a sufficient job.

The patch also removes a wait_queue.  Not much point having a queue when
only one task is ever going to be on it!
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Remove useless initalizers.
Signed-off-by: NPavel Machek <pavel@suse.cz>
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>

It looks like that the gs_serial module maybe sleep with spinlock in gs_close.
Sometimes, system hang when I remove the gs_serial module.

From: Fengwei Yin <xaityyy@gmail.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

The recent platform_device update has reintroduced into dummy_hcd.c the
dreaded dev->dev syndrome.  This harkens back to when an earlier version
of that driver included the unforgettable line:

	dev->dev.dev.driver_data = dev;

This patch (as602) renames the platform_device variables to "pdev", in
the hope of reducing confusion.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch (as601) adds a proper reference count to the file-storage
gadget's main data structure, to keep track of references held by child
devices (LUNs in this case).  Before this, the driver would wait for
each child to be released before unbinding.

While there's nothing really wrong with that (you can't create a hang by
doing "rmmod g_file_storage </sys/.../lun0/ro" since the open file will
prevent rmmod from running), the code might as well follow the standard
procedures.  Besides, this shrinks the size of the structure by a few
words...  :-)
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This allows us to eliminate the casts in the drivers, and eventually
remove the use of the device_driver function pointer methods for
platform device drivers.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Acked-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch removes almost all inclusions of linux/version.h.  The 3
#defines are unused in most of the touched files.

A few drivers use the simple KERNEL_VERSION(a,b,c) macro, which is
unfortunatly in linux/version.h.

There are also lots of #ifdef for long obsolete kernels, this was not
touched.  In a few places, the linux/version.h include was move to where
the LINUX_VERSION_CODE was used.

quilt vi `find * -type f -name "*.[ch]"|xargs grep -El '(UTS_RELEASE|LINUX_VERSION_CODE|KERNEL_VERSION|linux/version.h)'|grep -Ev '(/(boot|coda|drm)/|~$)'`

search pattern:
/UTS_RELEASE\|LINUX_VERSION_CODE\|KERNEL_VERSION\|linux\/\(utsname\|version\).h
Signed-off-by: NOlaf Hering <olh@suse.de>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Convert everyone who uses platform_bus_type to include
linux/platform_device.h.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Acked-by: NGreg Kroah-Hartman <gregkh@suse.de>

Ensure the the device_driver and usb_gadget_driver
have their .owner fields initialised to associate
the module owner to the driver.
Signed-off-by: NBen Dooks <ben-linux@fluff.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

When a USB device is put into suspend mode, the current drawn from VBUS
has to be less than 500 uA. Some transceivers need to be put into a
special power-saving mode to accomplish this, and won't have a separate
OTG driver handling that.

This adds a suspend method to the "otg_transceiver" struct -- misnamed,
it's not only for OTG -- and calls it from the OMAP UDC driver.
Signed-off-by: NJuha Yrj?l? <juha.yrjola@nokia.com>
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

The change to make DMA work two bytes at a time omitted an important
tweak that affects the file_storage gadget:  it needs to recognize when
the host writes an odd number of bytes.  (The network layer ignores
such extra bytes.)

This patch resolves that issue by checking the relevant bit and adjusting
the rx byte count, so that for example a legal 13 byte request doesn't
morph into an illegal 14 byte one any more.
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch (as580) is perhaps the only result from the long discussion I
had with David about his changes to the root-hub suspend/resume code.  It
renames the hub_suspend and hub_resume methods in struct usb_hcd to
bus_suspend and bus_resume.  These are more descriptive names, since the
methods really do suspend or resume an entire USB bus, and less likely to
be confused with the hub_suspend and hub_resume routines in hub.c.

It also takes David's advice about removing the layer of bus glue, where
those methods are called.  And it implements a related change that David
made to the other HCDs but forgot to put into dummy_hcd.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch (as575) fixes an unlikely race in the g_file_storage driver.
The problem can occur only when the driver is unbound before its
initialization routine has finished.

I also took the opportunity to replace kmalloc/memset with kzalloc.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch (as566) converts the File-Storage gadget over to the kthread
API.  The new code doesn't use kthread_stop because the control thread
needs to terminate asynchronously when it receives a signal.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

 drivers/usb/gadget/file_storage.c |   32 +++++++++++++-------------------
 1 file changed, 13 insertions(+), 19 deletions(-)

In PM v1, all devices were called at SUSPEND_DISABLE level.  Then
all devices were called at SUSPEND_SAVE_STATE level, and finally
SUSPEND_POWER_DOWN level.  However, with PM v2, to maintain
compatibility for platform devices, I arranged for the PM v2
suspend/resume callbacks to call the old PM v1 suspend/resume
callbacks three times with each level in order so that existing
drivers continued to work.

Since this is obsolete infrastructure which is no longer necessary,
we can remove it.  Here's an (untested) patch to do exactly that.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

[ARM] 3044/1: Fix sparse warnings about incompatible pointer types for register defined in pxa-regs.h

Patch from Ian Campbell

The sparse warning initially surfaced in sound/arm/pxa2xx-ac97.c
because it was using u32 * variables to hold the unsigned long *
register addresses.

I submitted an ALSA patch for this http://thread.gmane.org/gmane.linux.alsa.devel/27804 issue and it was suggested that it might be preferable to change the register
definitions to use u32.

Most other subarches seem to use u32 for their register type, at least
the ones which use a __REG macro (like the PXA) do. Nico indicated in
the thread above that he wouldn't mind this patch.

Changing the type required fixes for opposite warnings in the pxa2xx usb
gadget code but that was the only new warning introduced on defconfig
or lubbock, mainstone and our own PXA255 boards.
Signed-off-by: NIan Campbell <icampbell@arcom.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

This patch fixes several types in the PXA25x udc driver and hence fixes
several compiler warnings.
Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
Acked-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

this patch fixes an "Invalid argument" error returned by a write to an
endpoint-file after reopening it in the gadgetfs module in the kernel
2.6.12.

This was testet only with dummy_hcd module!
Signed-off-by: NPavol Kurina  <kurina@gmx.net>
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>

This patch centralizes the assignment of bcdDevice numbers for different
gadget controllers.  This won't improve the object code at all, but it
does save a lot of repetitive and error-prone source code ... and will
simplify the work of supporting a new controller driver, since most new
gadget drivers will no longer need patches (unless some hardware quirks
limit USB protocol messaging).

Added minor cleanups and identifer hooks for the UDC in the Freescale
iMX series processors.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Minor OMAP updates that somehow got dropped from previous patches.
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

I also needed the following on 2.6.13-rc1 without CONFIG_USB_ETH_RNDIS,
symbol fs_status_desc isn't available in that case on PXA255.

This builds both with and without ETH_RNDIS, but I haven't actually
tested either.
Signed-off-by: NIan Campbell <icampbell@arcom.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: NIan Campbell <icampbell@arcom.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/usb/gadget/net2280.c: In function 'show_registers':
drivers/usb/gadget/net2280.c:1501: warning: assignment discards qualifiers from pointer target type
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Greg,

This patch fixes the kmalloc() flags argument type in USB
subsystem; hopefully all of its occurences. The patch was
made against patch-2.6.12-git2 from Jun 20.

Cleanup of flags for kmalloc() in USB subsystem.
Signed-off-by: NOlav Kongas <ok@artecdesign.ee>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This fixes a build error on pxa25x processes with pxa2xx_udc and

        CONFIG_USB_ETH=m
        # CONFIG_USB_ETH_RNDIS is not set

The error is because on that CPU there's no status transfer support
except with RNDIS.  Workaround, enable the RNDIS support too.
Signed-off-by: NIan Campbell <icampbell@arcom.com>
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Drain the rndis response queue on disconnect.  This fixes a problem
in which an rndis response left in the queue from a previous session
could cause a subsequent session to fail.
Signed-off-by: NAndy Lowe <alowe@mvista.com>
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This fixes a compile glitch with CONFIG_USB_ETH_RNDIS disabled, and
replaces some inline #ifdeffery (and other code) with inline functions
which can evaluate to constants.
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch adds support to dummy_hcd for suspending and resuming the root
hub and the emulated platform devices.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This patch fixes the byte-ordering issue for setup packets in the
dummy_hcd driver and cleans up a few things that sparse -Wbitwise
dislikes.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This has several small updates to the px2xx UDC driver:

  * small fixes from Eugeny S. Mints <emints@ru.mvista.com>
     - local_irq_save() around potential endpoint disable race
     - fix handling of enqueue to OUT endpoints (potential oops)
  * add shutdown() method to disable any D+ pullup
  * rename methods accessing raw signals, referencing the signals
  * describes itself as for "pxa25x", since pxa27x is different
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

Sparse updates; and the API change for SETUP packets being in USB byteorder.
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This is mostly "sparse" related updates, one of which was a missing
le32_to_cpu() should have affected big-endian hardware.

Notable is the API change:  setup packets are now provided in USB
byte order.  This affects only big-endian hardware, and the gadget
drivers have been updated in a separate patch.
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This updates most of the gadget framework to expect SETUP packets use
USB byteorder (matching the annotation in <linux/usb_ch9.h> and usage
in the host side stack):

  - definition in <linux/usb_gadget.h>
  - gadget drivers:  Ethernet/RNDIS, serial/ACM, file_storage, gadgetfs.
  - dummy_hcd

It also includes some other similar changes as suggested by "sparse",
which was used to detect byteorder bugs.
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

This prevents gadget drivers from being selected when no controller has
been selected, by adding an additional boolean and depending on it.
It's mostly to help "allmodconfig".
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>