This involved reworking the usb_serial_debug_data() function too.
Based on a request from SuSE, and numerous user confusions with how
to enable this option.  Now that all usb-serial drivers are using
module_param() it can be set from the boot command line if the drivers
are built into the kernel.
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

This single patch contains some updates and cleanups for
the W996[87]CF driver and a new experimental V4L2 driver
for SONiX SN9C10[12] PC Camera Controllers connected to various
image sensors. I have not divided the patch in two logical
sub-patches becouse of two independent changes in one common
file, KConfigure.

More informations about the SN9C10[12] can be found below in the
documentation. The driver is marked as "EXPERIMENTAL", meaning
that there are no known bugs, but further testing is necessary
before considering it stable. This the first driver using the new
SBGGR8 video format, which has been recently added to the mainline
kernel, so there are no available user application at the moment:
this is one more reason why it should be in the kernel now.

Changes in W996[87]CF:
- remove w9968cf_externaldef.h now that ovcamchip.h is in the kernel;
- mark user pointers with __user in a cleaner way to avoid sparse
  warnings;
- use appropriate exclusive wait macro during open();
- replace info(), err(), warn() with dev_info(), dev_err(), dev_warn(),
  pr_debug(), pr_info();
- replace usb_unlink_urb() + wait_for_completion() with usb_kill_urb();
- fix memory offsets for buffers in the chip to be used with generic
  image sensors;
- 'vppmod_load', 'debug', 'specific_debug' and 'simcams' module
  parameters are now writeable by default;
- fix possible race conditions between disconnect() and open();
- add automatic 'ovcamchip' module loading option with 'ovmod_load'
  module parameter;
- get rid of deprecated intermodule communication routines and use the
  correct module registration/unregistration approach;
- remove period at the end of kernel messages;
- fix several typos;
- use MODULE_VERSION() macro;
- other small internal cleanups;
- documentation updates.
Signed-off-by: Luca Risolia <luca.risolia@studio.unibo.it>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

Update CDC Ethernet/RNDIS gadget driver to the latest:

    -	Basics of OTG support: providing the OTG descriptor
	in each configuration (as needed).   No HNP yet.

    -	Stop issuing partial-packet reads.  There's some hardware that
	only counts reads in packets, not bytes, so let's not bother.
	There are still software checks to catch framing gone wild.

    -	Fix a small bug that crept in with a memory leak fix: after
        RNDIS requests, ep0 responses would use the RNDIS completion
	handler even for non-RNDIS requests.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

This patch teaches "gadget zero" enough about OTG to pass simple USBCV
tests, mostly by including OTG descriptors in each configuration.  It
tests and reports OTG status, as reported by the USB controller driver.

It also adds an option to build gadget zero to act as the designated
OTG "HNP Test Device", which exists primarily to trigger HNP.  However,
it won't currently request HNP.

Includes other minor tweaks:  delete a timer on disconnect, reset
the req->zero flag, don't autoresume after disconnect.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

Gadget API updates, including new features:

    -	Adds several new optional calls that can be made to the
	USB peripheral controller:

	    * VBUS session reporting, for use mostly by external
	      transcievers (such as isp1301).  Detection of VBUS
	      power is the first step in enumeration, and usually
	      corresponds to a device being plugged into a hub.

	    * "Soft Connect" feature, wherein the D+ pullup is under
	      gadget driver control.  This is a second step during
	      enumeration, which lets the hub see the new device.
	      (Based on a patch by Alex Sanks <alex@netchip.com>.)

	    * Control over VBUS current draw.  So for example this is
	      what a gadget driver uses during SET_CONFIGURATION to
	      say "it's OK to draw 300 mA from VBUS to recharge".

    -	Basic interfaces to support device-side USB OTG.  Feature
	flags and descriptors are in <linux/usb_ch9.h> already.

	    * Reports whether the device has a Mini-AB port, so
	      that OTG support (desriptors etc) is required.

	    * Reports OTG device feature flags for HNP.  (The OTG
	      spec requires user interfaces to report this stuff.)
	      Say if this is a B-Peripheral or an A-Peripheral.

	    * Says that usb_gadget_wakeup() is how to access SRP,
	      and usb_gadget_disconnect() is how to access HNP.

    -	Minor updates/cleanups to comments (Linux 2.5-->2.6 etc)

Currently there's no support for SRP-only OTG devices.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

Tell gadgetfs about omap_udc.
Add some missing __user annotations.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

This lets the serial gadget work with another controller.

Tell serial about omap_udc.  This driver still needs updating to
use the endpoint autoconfig suppport; like Gadget Zero, it
really shouldn't need _any_ hardware-specific #ifdeffery.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

Various minor OHCI tweaks;

    - Fix osdl bugid=2503 by:
	* Change needlessly-scarey message (WARN_ON dumps stack)
	* Tries cleaning up, as if it's just IRQ lossage.

    - Force IRQs off when shutting down a controller that was
      already stopped ... just in case.

    - Allow suspending OHCI during driver initialization, to
      support more aggressive power management.

    - Fix some misleading/wrong debug messages.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

ID for another AX8817x based usb2 Ethernet adapter.

From:          Tim Chick <Tim.Chick@Conexant.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

ax8817x_unbind does not free the interrupt URB after unlinking.

Noticed that the net->status already has a flag for link so my
private structure variable for link was redundant.  Worked around
this and was able to kill off the unique ax8817x_get_link() function
in the process.
Signed-off-by: David Hollis <dhollis@davehollis.com>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

This patch uses the interrupt URB on the ax8817x for link detection.
This allows the driver to notify userspace when link drops/comes back
so it can take action such as run dhclient, etc.

I was also able to reduce the bind function by using some of the stock
mii_xxx calls as well as my own for handling initial link negotiation.
Signed-off-by: David Hollis <dhollis@davehollis.com>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

It makes sense for APIs involved in cleanup activities (like kfree()) to
accept NULL arguments.  Doing so frees drivers from the responsibility of
checking whether each resource was actually acquired before trying to
release it.  Accordingly, this patch makes usb_unlink_urb() and
usb_kill_urb() accept a NULL pointer (which used to be acceptable until I
changed it) and notes explicitly in the kerneldoc that such arguments are
permitted.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

 This patch does a cleanup for usb/core/file.c::usb_major_init(), which
 is:

*) in error condition, returns the error code from register_chrdev(),
   insted returning -EBUSY;

*) adds missing audit for class_register();

*) only calls devfs_mk_dir() if the prior calls have success.
Signed-off-by: Luiz Capitulino <lcapitulino@prefeitura.sp.gov.br>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

Ok here is a patch to make the mount options work.  In addition to
implementing the remount function, it removes the parse_options() call
from usb_fill_super and adds a "ignore" flag around the mounting that gets
done in create_special_files.  The parse_options call in usb_fill_super is
removed because it is not needed when remount is implemented.  The
ignore_mount flag is needed because the simple_pin_fs function calls
remount with no mount options - i.e. it's not a real mount.  So the mount
options would be cleared out.  The ignore_mount flag causes the remount
function to only act on real mounts.
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

This patch fixes a byte-swapping error in the UHCI driver.  It has been
present since 2.6.6 and only got tracked down just now!  Thanks a lot to
Michel Roelofs for all his help and testing.

This should be pushed through to Linus in time to appear in 2.6.8, if
possible.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

Hi Greg!

I am compiling allmodconfig with some extra gcc warnings enabled
(-W -Wno-unused -Wno-sign-compare -Winline -Wundef) and got this one:

  CC [M]  security/root_plug.o
In file included from security/root_plug.c:30:
include/linux/usb.h:358: warning: `inline' is not at beginning of declaration

Patch is trivial:
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

I suggest to put the pointer to port instead of the pointer to the
pointer to port to the workqueue data.
Did that driver ever work with 2.6?
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

[PATCH] USB: fix up the wording in the emi26 firmware file to match the other kernel firmware files.
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

This patch fixes a logical hole in the hub driver.  It's possible for the
driver to be unbound from a hub without physically unplugging the hub.
For example, writing 0 into the bConfigurationValue attribute file will
have this effect.  When this happens, we need to make sure that all the
child devices of the hub are logically disconnected and their ports
disabled.

That's what this patch does.  It's a little bit tricky because we can't
simply call usb_disconnect() from within the hub driver's disconnect()
routine.  While that routine is running it holds the usb bus writelock,
but usb_disconnect() would try to acquire it again.  Instead
schedule_work() is used, so after a brief delay the children will be
removed.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

This patch adds a pointer to the hub's usb_device into the usb_hub private
structure.  It's a small change, and permits a small amount of
simplification in a few spots, i.e., avoid calling interface_to_usbdev().
This doesn't really do much in itself, but it's a prerequisite for the
next patch.  (A situation arises where we can't use the interface pointer
to find the usb_device because the interface might not exist.)
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

Okay, here's a revised patch (as332b).  This tries first to ask for 255
bytes, and if that fails then it asks for the length and the full
descriptor.  Hopefully nobody will object to applying this version...

You know, it occurs to me that the have_langid field in usb_device could
easily be eliminated.  Just set string_langid to -1 during initialization
and test for whether or not it is >= 0.  I'll do that some other time.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

This is a rerun of as278, updated to match the current source.  It changes
the hub driver, replacing calls to synchronous usb_unlink_urb() with
usb_kill_urb() and removing the machinery formerly needed to synchronize
the status URB handler with the rest of the driver.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

This patch is a slightly revised version of as277c, updated to match the
current source.  The only difference from the older version is that this
makes urb->use_count into an atomic_t, to avoid the overhead of an extra
locking step each time an URB is submitted and given back.  The important
features of this patch are:

	-EPERM added to Documentation/usb/error-codes.txt.

	Failure to use URB_ASYNC_UNLINK with usb_unlink_urb() is
	deprecated in the documentation.

	New ->reject and ->use_count fields added to struct urb.
	The reject field is protected by urb->lock, and locking is
	required only in usb_kill_urb() which doesn't have to be fast.

	Single wait_queue used for all processes waiting inside
	usb_kill_urb().  The wait queue is woken up only when an URB
	is given back with ->reject set.

	usb_rh_status_dequeue() changed to return int.  It looks like
	this function should be declared static; it's not used outside
	the hcd.c file.

	Prototype for unlink_urb() in struct usb_operations is changed
	to include a status code argument.  This is necessary so that
	the different unlink paths can return -ENOENT and -ECONNRESET
	as appropriate.

	Support for synchronous usb_unlink_urb() has been removed;
	such calls are passed to usb_kill_urb().

	Kerneldoc for usb_unlink_urb() is updated.

	usb_kill_urb() added to urb.c.

	hc_simple() host driver is partially updated -- it should
	compile but it won't really work right.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

On Wed, Jun 30, 2004 at 01:22:21AM -0400, Jeff Garzik wrote:
>   CC      arch/x86_64/kernel/setup.o
> arch/x86_64/kernel/setup.c: In function `copy_edd':
> arch/x86_64/kernel/setup.c:415: error: `EDD_MBR_SIGNATURE' undeclared=20
> (first use in this function)
> arch/x86_64/kernel/setup.c:415: error: (Each undeclared identifier is=20
> reported only once
> arch/x86_64/kernel/setup.c:415: error: for each function it appears in.)
> arch/x86_64/kernel/setup.c:417: error: `EDD_MBR_SIG_NR' undeclared=20
> (first use in this function)
> make[1]: *** [arch/x86_64/kernel/setup.o] Error 1
> make: *** [arch/x86_64/kernel] Error 2

Arrgh.  On i386 it's in include/asm-i386/setup.h  On x86_64 it
belongs in include/asm-x86_64/bootsetup.h.

Patch below defines EDD_MBR_SIG_NR and EDD_MBR_SIGNATURE on x86_64.
Signed-off-by: Matt_Domsch <Matt_Domsch@dell.com>

into kernel.bkbits.net:/home/davem/net-2.6

Current 2.6.7 tree acts as if it is alway under memory pressure because
a recent change did a s/tcp_memory_pressure/tcp_prot.memory_pressure/.
The problem is tcp_prot.memory_pressure is a pointer, so it is always non-zero!

Rather than using *tcp_prot.memory_pressure, just go back to looking at
tcp_memory_pressure.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@redhat.com>

Remove the limitation of 1024 DM devices.
Signed-off-by: Kevin Corry <kevcorry@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

dm-raid1.c: Declare fixed-sized (instead of variable-sized) arrays on the
stack in recover() and do_write().
Signed-off-by: Kevin Corry <kevcorry@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

dm-raid1.c: Since kcopyd can currently only handle 1 source and up to 8
destinations, enforce a max of 9 mirrors when creating a dm-mirror device.
Signed-off-by: Kevin Corry <kevcorry@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

kcopyd.c: client_add() can return void instead of an int, which will eliminate
an unnecessary error path in kcopyd_client_create().
Signed-off-by: Kevin Corry <kevcorry@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

kcopyd.c: Remove unused #include.
Signed-off-by: Kevin Corry <kevcorry@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

'strace' shows a problem with a missing release_task for self-reaping
clones that have been traced.  We need to defer releasing them until the
tracer is done with them, but if the tracer dies, we need to handle that
case gracefully too. 

We do that by having 'forget_original_parent()' generate a list of tasks
to release when this case happens.

Patch based on discussions on linux-kernel, and suggestions from Roland
McGrath <roland@redhat.com>.

Opening a CDROM device for writing no longer works, because cdrom_open()
returns -EROFS even if cdrom_open_write() succeeds.

This fixes it. 
Signed-off-by: Peter Osterlund <petero2@telia.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This fixes a corner-case NX bug: the x86 SMP kernel doesnt boot on SMP
Opterons if NX is enabled [and mem=nopentium is specified], due to
kernel-space NX protection preventing the SMP trampoline from being
executable. 

Since the SMP trampoline is a rare case of 'dynamic code' executed by
the kernel (it has to be below 640K so it cannot be part of the kernel
text itself), i've added the necessary infrastructure to enable/disable
executability of specific kernel pages. 

We cannot simply disable NX via the MSR because we've got the NX bits in
the kernel pagetables, which are set up before we do the SMP bootup. 
The NX bit in the pagetables is undefined if EFER.NXE is 0, so we cannot
count on NX-capable CPUs not faulting when they encounter them. 

I've tested the x86 kernel on a non-NX SMP x86 box and on an NX UP box,
on which i've also tested a simulated SMP trampoline, it all works fine. 

- add infrastructure to enable/disable executability of kernel pages

- make the SMP trampoline page executable.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>