Signed-off-by: Domen Puncer <domen@coderock.org>
Signed-off-by: Maximilian Attems <janitor@sternwelten.at>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: David S. Miller <davem@davemloft.net>

It is only taken during boot time bus probe, thus
protects nothing at run time and causes bogus bug
messages when PREEMPT is enabled.  When we support
PCI controller hot plug we will add a suitable locking
mechanism.
Signed-off-by: David S. Miller <davem@davemloft.net>

Replace for/while loops with list_for_each*.
Signed-off-by: Domen Puncer <domen@coderock.org>
Signed-off-by: Maximilian Attems <janitor@sternwelten.at>
Signed-off-by: David S. Miller <davem@davemloft.net>

Based upon a patch from Alexander Stohr.

This thing was also reimplementing strnchr() as well.
Signed-off-by: David S. Miller <davem@redhat.com>

Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: David S. Miller <davem@redhat.com>

into ppc970.osdl.org:/home/torvalds/v2.6/linux

On x86_64:

drivers/isdn/hardware/eicon/debug.c: In function `DI_format':
drivers/isdn/hardware/eicon/debug.c:599: incompatible types in assignment
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

zfcp host adapater changes:
 - Add ability to enqueue other WKA ports besides the nameserver port.
 - Document and cleanup sg_list functions.
 - Add get_port_by_did/get_adapater_by_busid functions.
 - Improve documentation of some functions and structures.
 - Fix error handling for nameserver requests.
 - Correct size check in zfcp_sg_list_copy_to_user.
 - Correct parameter description for loglevel parameter.
 - Remove unsused code, types and definitions.
 - Add support for exchange_port_data command.
 - Add infrastructure to set timers for ELS and SCSI commands.
 - Avoid adapter shutdown after receiving FSF_SQ_ULP_PROGRAMMING_ERROR.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This adds support for the new compiler options -mkernel-backchain,
-mstack-size, -mstack-guard, -mwarn-dynamicstack and -mwarn-framesize.

The option -mkernel-backchain enables the use of modified layout for the
stack frames of kernel functions.  This breaks the ABI, modules compiled
with the option won't work on a kernel compiled with the option and vice
versa.  The positive effect of the option is a drastic reduction of kernel
stack use.  The trick is that the new frame layout allows to overlap the 96
(31 bit)/160 (64 bit) byte bias areas of the functions on the call chain.
This lowers the minimal stack usage of a function from 96 bytes to 16 bytes
(31 bit) and 160 bytes to 24 bytes (64 bit).  The kernel stack use is
decreased to a point where it is possible to use 4K (31 bit) / 8K (64 bit)
stacks.  The split into process stack and interrupt stack is already in
place.

The options -mstack-size and -mstack-guard are used to detect kernel stack
overflows.  The compiler adds code to the prolog of every function that
causes an illegal operation if the kernel stack is about to overflow.

The options -mwarn-dynamicstack and -mwarn-framesize cause the compiler to
emit warnings if a function uses dynamic stack allocation or if the
function frame size is bigger then a specified limit.

To play safe all the new options are configurable.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

s390 core changes:
 - Fix a race condition between kernel thread creation and preemption.
 - Fix idal_is_needed for the border case 0x7ffff000.
 - Get rid of compiler warnings in compat_signal.c and profile.c.
 - Regenerate default configuration.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Name of device has been changed in 2.6.9-rc1 to "SkyStar2", but module stv0299
still compares name with "Technisat SkyStar2 driver", strings are different,
and result is that stv0299 detects invalid tuner type.

Cc: Johannes Stezenbach <js@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Signed-off-by: Luiz Capitulino <lcapitulino@conectiva.com.br>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Missing sanity check, overlay is supported for packed pixel formats only.
Patch below.  It's not API related btw, the bug can be triggered using the
v4l2 API as well.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch fixes a problem reported by David S. Miller <davem@redhat.com>

"I just noticed that fb_{read,write}() uses copy_*_user() with
 the kernel buffer being the frame buffer.  It needs to use
 the proper device address accessor functions."

The patch will do an intermediate copy of the contents to a page-sized,
kmalloc'ed buffer.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1. This fixes a kernel oops when issuing an FBIO_CURSOR ioctl if struct
   fb_cursor_user is filled with zero/NULLs.  Reported by Yuval Kogman
   <nothingmuch@woobling.org>.

2. This also fixes the cursor corruption in soft_cursor when
   sprite.scan_align != 1.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Makes the BeOS File Systen driver load the default nls if none is specified
in the "iocharset" mount option.
Signed-off-by: Vegard Wærp <vegarwa@online.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Seem like devfsd expects it in /dev/cpu/microcode and Debian users do
as well.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

It's already marked BROKEN_ON_SMP, but even a UP compile yields tons of
errors.  While those aren't deeply complicated to fix having them for over
a year now is a pretty good indicator no one cares.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

There seem to be some crazy mac users that want to use the loop driver
on hfsplus.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

attached patch changes the subfrequency carrier value in the adv7175
video output driver which is part of the zr36067 driver package. The
practical consequence is that the picture will be more stable on
non-passthrough video mode in NTSC. It does not affect PAL/SECAM. Patch
originally submitted by Douglas Fraser <ds-fraser@comcast.net> (8/21).
Signed-off-by: Ronald Bultje <rbultje@ronald.bitfreak.net>
Signed-off-by: Douglas Fraser <ds-fraser@comcast.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

attached patch makes the zr36067 driver use msleep() instead of
schedule_timeout() with uninterruptible state. Patch originally
submitted by Nishanth Aravamudan <nacc@us.ibm.com> (7/26).
Signed-off-by: Ronald Bultje <rbultje@ronald.bitfreak.net>
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

attached patch correctly makes the zr36067 driver depend on i2c-ago-bit in
the kernel config.  Bug reported and patch sent to me by Adrian Bunk
<bunk@fs.tum.de> (6/21).  It wasn't signed off.
Signed-off-by: Ronald Bultje <rbultje@ronald.bitfreak.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

The last attempt to clean this up still left a hardcoded constant (the
offset from __FIXADDR_TOP).  This patch moves VSYSCALL_BASE to
asm-offsets.c.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Cc: William Lee Irwin III <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This is an hvc_console patch which provides driver and ppc64 architecture
fixes to enable the hvc_console driver to register itself as a vio device
with the vio bus, provide hotplug add/remove for vty adapters, and act as
an interrupt driven driver on Power-5 hardware or remain as a polling
driver on Power-4 hardware.

arch/ppc64/kernel/hvconsole.c
=============================

- Changed hvc_get_chars() and hvc_put_chars() api to take vtermno rather
  than index number.

- Added hvc_find_vtys() function which walks the bus looking for
  vterm/vty devices to callback to the hvc_console driver.  This provides
  console output functionality prior to early console init (pre mem init
  and pre device probe).

include/asm-ppc64/hvconsole.h
=============================

- Changed hvc_get_chars() and hvc_put_chars() api to take vtermno rather
  than index number.

- Added hvc_find_vtys() function.

- Added hvc_instantiate() function which is implemented by a console
  driver wanting to receive a callback of and early console init.

drivers/char/hvc_console.c
==========================

- Switch khvcd from kernel_threads to kthreads which got rid of
  deprecated daemonize().

- Added module exit clause to be thorough (not terribly necessary with a
  console driver of course)

- Added early discovery of vterm/vty adapters by doing a bus walk on
  early console init which results in hvc_instantiate() callback and
  addition of the vtermno into a static array of vtermnos supported as
  console adapters (meaning the console api's work against these vtermnos
  prior to full console initialization).

- This driver is now registered as a vio driver which means that vty
  adapters are now managed via probe/remove.  This means hvc_console
  supports hotplug vty adapters.

- Driver now requests more device nodes than what was found on the
  initial bus walk when registered as a tty driver to make room for hotplug
  vty adapters.  These secondary vty adapters provide a tty tunnel between
  partitions.

- Removed static hvc_struct array and replaced with a linux list that has
  elements (hvc_struct instances) added/removed on probe/remove AFTER early
  console init.  This is important because kmalloc can't be done at early
  console init.

- Driver now either runs in interrupt driven mode or in polling mode on
  older hardware.  The khvcd is smart enough to not 'schedule()' when there
  are no interrupts.

- kobjects are now used for ref counting on the hvc_struct instances.

- This driver puts the tty layer to sleep on hvc_close() if there are
  pending data writes being blocked by firmware.

- Removed useless spinlocks in hvc_chars_in_buffer() and hvc_write_room.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Ryan S. Arnold <rsa@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Bug Fixes:

* Fix transmit end of message (EOM) processing to work correctly with
  hardware auto CTS feature

* Fix oops in error path if hardware diags fail during device
  initialization

Cosmetic change:

* Use existing macros for address space size instead of hardcoded values
Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

The attached patch fixes a bug introduced into do_generic_mapping_read() by
which a file pointer becomes required.  I'd arranged things so that the
file pointer was optional so that I could call the function directly on an
inode.
Signed-Off-By: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch allows i386 signal delivery to work correctly when userspace is
compiled with -mregparm.  This is somewhat hacky: it passes the arguments
*both* on the stack and in registers, but it works because there are only
one or three (depending on SA_SIGINFO) official arguments.  If you're
relying on the unofficial arguments then you're doing something nonportable
anyway and can put in the __attribute__((cdecl,regparm(0))) in the correct
place.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch contains the updates necessary to fix the hangs in netconsole.
This includes the changing of trapped to an atomic_t, and the addition of a
netpoll_poll_lock.  It also turns dev->netpoll_rx into a bitfield which is
used to keep from running the networking code from the netpoll_poll call path.
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

I've upped the poll budget to 16 and added a comment explaining why.  I
definitely ran into this problem when testing netdump.
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch removes CONFIG_NETPOLL_RX, as discussed.
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Here's the first of the broken out patch set.  This puts the check for
netif_queue_stopped back into netpoll_send_skb.  Network drivers are not
designed to have their hard_start_xmit routines called when the queue is
stopped.
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>