Fix various problems pointed out by Andrew Morton and others:
  * platform_device_unregister checks for NULL, no need to check here.
  * Formatting fixes.
  * Remove big macro and convert to a function.
  * Use strcmp instead of defining a broken case-insensitive comparison,
    and make the output parameter info match the case of the input one
    (change "I/O" to "i/o").
  * Return the length instead of 0 from the hotmod parameter handler.
  * Remove some unused cruft.
  * The trydefaults parameter only has to do with scanning the "standard"
    addresses, don't check for that on ACPI.
Signed-off-by: Corey Minyard <cminyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Remove all =0 and =NULL from static initializers.  They are not needed and
removing them saves space in the object files.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Corey Minyard <minyard@acm.org>
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>

The new Atmel AT91SAM9261 and AT91SAM9260 processors do not have the
internal RTC peripheral.  This RTC driver is therefore
AT91RM9200-specific.

This patch renames rtc-at91.c to rtc-at91rm9200.c, and changes the name
of the configuration option.
Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Update more I2C drivers that live outside drivers/i2c to understand that using
adapter->dev is not The Way.  When actually referring to the adapter hardware,
adapter->class_dev.dev is the answer.  When referring to a device connected to
it, client->dev.dev is the answer.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Add rtc_merge_alarm(), which can be used by rtc drivers to turn a partially
specified alarm expiry (i.e.  most significant fields set to -1, as with the
RTC_ALM_SET ioctl()) into a fully specified expiry.

If the most significant specified field is earlier than the current time, the
least significant unspecified field is incremented.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This driver seems to be for a PCI device.

drivers/crypto/geode-aes.c:384: warning: implicit declaration of function 'pci_release_regions'
drivers/crypto/geode-aes.c:397: warning: implicit declaration of function 'pci_request_regions'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

freezer.h uses task_struct fields so it should include sched.h.

  CC [M]  fs/jfs/jfs_txnmgr.o
In file included from fs/jfs/jfs_txnmgr.c:49:
include/linux/freezer.h: In function 'frozen':
include/linux/freezer.h:9: error: dereferencing pointer to incomplete type
include/linux/freezer.h:9: error: 'PF_FROZEN' undeclared (first use in this function)
include/linux/freezer.h:9: error: (Each undeclared identifier is reported only once
include/linux/freezer.h:9: error: for each function it appears in.)
include/linux/freezer.h: In function 'freezing':
include/linux/freezer.h:17: error: dereferencing pointer to incomplete type
include/linux/freezer.h:17: error: 'PF_FREEZE' undeclared (first use in this function)
include/linux/freezer.h: In function 'freeze':
include/linux/freezer.h:26: error: dereferencing pointer to incomplete type
include/linux/freezer.h:26: error: 'PF_FREEZE' undeclared (first use in this function)
include/linux/freezer.h: In function 'do_not_freeze':
include/linux/freezer.h:34: error: dereferencing pointer to incomplete type
include/linux/freezer.h:34: error: 'PF_FREEZE' undeclared (first use in this function)
include/linux/freezer.h: In function 'thaw_process':
include/linux/freezer.h:43: error: dereferencing pointer to incomplete type
include/linux/freezer.h:43: error: 'PF_FROZEN' undeclared (first use in this function)
include/linux/freezer.h:44: warning: implicit declaration of function 'wake_up_process'
include/linux/freezer.h: In function 'frozen_process':
include/linux/freezer.h:55: error: dereferencing pointer to incomplete type
include/linux/freezer.h:55: error: dereferencing pointer to incomplete type
include/linux/freezer.h:55: error: 'PF_FREEZE' undeclared (first use in this function)
include/linux/freezer.h:55: error: 'PF_FROZEN' undeclared (first use in this function)
fs/jfs/jfs_txnmgr.c: In function 'freezing':
include/linux/freezer.h:18: warning: control reaches end of non-void function
make[2]: *** [fs/jfs/jfs_txnmgr.o] Error 1
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Document how to decode a binary IOCTL number.
Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Mention the new fault-injection test framework.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Add some kernel coding style comments, mostly pulled from emails
by Andrew Morton, Jesper Juhl, and Randy Dunlap.

- add paragraph on switch/case indentation (with fixes)
- add paragraph on multiple-assignments
- add more on Braces
- add section on Spaces; add typeof, alignof, & __attribute__ with sizeof;
  add more on postfix/prefix increment/decrement operators
- add paragraph on function breaks in source files; add info on
  function prototype parameter names
- add paragraph on EXPORT_SYMBOL placement
- add section on /*-comment style, long-comment style, and data
  declarations and comments
- correct some chapter number references that were missed when
  chapters were renumbered
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Stabilize PIO mode transfers against a range of word sizes and FIFO
thresholds and fixes word size setup/override issues.

1) 16 and 32 bit DMA/PIO transfers broken due to timing differences.
2) Potential for bad transfer counts due to transfer size assumptions.
3) Setup function broken is multiple ways.
4) Per transfer bit_per_word changes break DMA setup in pump_tranfers.
5) False positive timeout are not errors.
6) Changes in pxa2xx_spi_chip not effective in calls to setup.
7) Timeout scaling wrong for PXA255 NSSP.
8) Driver leaks memory while busy during unloading.

Known issues:

SPI_CS_HIGH and SPI_LSB_FIRST settings in struct spi_device are not handled.

Testing:

This patch has been test against the "random length, random bits/word,
random data (verified on loopback) and stepped baud rate by octaves
(3.6MHz to 115kHz)" test.  It is robust in PIO mode, using any
combination of tx and rx thresholds, and also in DMA mode (which
internally computes the thresholds).

Much thanks to Ned Forrester for exhaustive reviews, fixes and testing.
The driver is substantially better for his efforts.
Signed-off-by: Stephen Street <stephen@streetfiresound.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

The reverse get function allows the final piece of the switching for the old
IDE layer
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This is a long outstanding patch to finally fix the syscall interface.  The
constants used for the system calls are those we have provided in our libc
patches.  This patch also fixes the shmbuf and stat structure, and fcntl
definitions.
Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

The Xtensa port contained many header files that were never needed.  This
rather lengthy patch removes all those files.  Unfortunately, there were
many dependencies that needed to be updated, so this patch touches quite a
few source files.
Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Update the architecture specific interrupt handling code for Xtensa to support
the new API.  Use generic BUG macros in bug.h, and some minor fixes.
Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Ramiro Voicu hits the BUG_ON(!pte_none(*pte)) in zeromap_pte_range: kernel
bugzilla 7645.  Right: read_zero_pagealigned uses down_read of mmap_sem,
but another thread's racing read of /dev/zero, or a normal fault, can
easily set that pte again, in between zap_page_range and zeromap_page_range
getting there.  It's been wrong ever since 2.4.3.

The simple fix is to use down_write instead, but that would serialize reads
of /dev/zero more than at present: perhaps some app would be badly
affected.  So instead let zeromap_page_range return the error instead of
BUG_ON, and read_zero_pagealigned break to the slower clear_user loop in
that case - there's no need to optimize for it.

Use -EEXIST for when a pte is found: BUG_ON in mmap_zero (the other user of
zeromap_page_range), though it really isn't interesting there.  And since
mmap_zero wants -EAGAIN for out-of-memory, the zeromaps better return that
than -ENOMEM.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Cc: Ramiro Voicu: <Ramiro.Voicu@cern.ch>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

The as-instr/ld-option need to create temporary files, but create them in the
output directory, when compiling external modules.  Reformat them a bit and
use $(CC) instead of $(AS) as the former is used by kbuild to assemble files.
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Cc: Andi Kleen <ak@suse.de>
Cc: Jan Beulich <jbeulich@novell.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: <jpdenheijer@gmail.com>
Cc: Horst Schirmeier <horst@schirmeier.com>
Cc: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

`make -d help | grep Makefile` shows patterns, where make tries to rebuild
included and top makefiles.

While `make -rR is now default' commit should fix this, actually, it was just
a little janitorial.

This fix is aimed to complete cancelling implicit rules.

Cc: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Oleg Verych <olecom@flower.upol.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Refactor Kconfig content to maximize nesting of menus by menuconfig and
xconfig.

Tested by simultaneously running `make xconfig` with and without
patch, and comparing displays.
Signed-off-by: Don Mullis <dwm@meer.net>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

When CONFIG_PROC_FS=n and CONFIG_PROC_SYSCTL=n but CONFIG_SYSVIPC=y, we get
this build error:

kernel/built-in.o:(.data+0xc38): undefined reference to `proc_ipc_doulongvec_minmax'
kernel/built-in.o:(.data+0xc88): undefined reference to `proc_ipc_doulongvec_minmax'
kernel/built-in.o:(.data+0xcd8): undefined reference to `proc_ipc_dointvec'
kernel/built-in.o:(.data+0xd28): undefined reference to `proc_ipc_dointvec'
kernel/built-in.o:(.data+0xd78): undefined reference to `proc_ipc_dointvec'
kernel/built-in.o:(.data+0xdc8): undefined reference to `proc_ipc_dointvec'
kernel/built-in.o:(.data+0xe18): undefined reference to `proc_ipc_dointvec'
make: *** [vmlinux] Error 1
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This driver is an AC97 codec according to its help text.  However, if SOUND is
disabled, the "select SND_AC97_BUS" still inserts that into the .config file:

#
# Sound
#
# CONFIG_SOUND is not set
CONFIG_SND_AC97_BUS=m

Even if the config software followed dependency chains on selects, we should
try to limit usage of "select" to library-type code that is needed (e.g., CRC
functions) instead of bus-type support.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Fix ieee80211-softmac compile problem where it's using schedule_work() on a
delayed_work struct.
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: "John W. Linville" <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6:
  [PATCH] x86-64: no paravirt for X86_VOYAGER or X86_VISWS
  [PATCH] i386: Fix io_apic.c warning
  [PATCH] i386: export smp_num_siblings for oprofile
  [PATCH] x86: Work around gcc 4.2 over aggressive optimizer
  [PATCH] x86: Fix boot hang due to nmi watchdog init code
  [PATCH] x86: Fix verify_quirk_intel_irqbalance()
  [PATCH] i386: Update defconfig
  [PATCH] x86-64: Update defconfig

Since Voyager and Visual WS already define ARCH_SETUP,
it looks like PARAVIRT shouldn't be offered for them.

In file included from arch/i386/kernel/setup.c:63:
include/asm-i386/mach-visws/setup_arch.h:8:1: warning: "ARCH_SETUP" redefin=
ed
In file included from include/asm/msr.h:5,
                 from include/asm/processor.h:17,
                 from include/asm/thread_info.h:16,
                 from include/linux/thread_info.h:21,
                 from include/linux/preempt.h:9,
                 from include/linux/spinlock.h:49,
                 from include/linux/capability.h:45,
                 from include/linux/sched.h:46,
                 from arch/i386/kernel/setup.c:26:
include/asm/paravirt.h:163:1: warning: this is the location of the previous=
 definition
In file included from arch/i386/kernel/setup.c:63:
include/asm-i386/mach-visws/setup_arch.h:8:1: warning: "ARCH_SETUP" redefin=
ed
In file included from include/asm/msr.h:5,
                 from include/asm/processor.h:17,
                 from include/asm/thread_info.h:16,
                 from include/linux/thread_info.h:21,
                 from include/linux/preempt.h:9,
                 from include/linux/spinlock.h:49,
                 from include/linux/capability.h:45,
                 from include/linux/sched.h:46,
                 from arch/i386/kernel/setup.c:26:
include/asm/paravirt.h:163:1: warning: this is the location of the previous=
 definition
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>

gcc 4.2 warns

linux/arch/i386/kernel/io_apic.c: In function ‘create_irq’:
linux/arch/i386/kernel/io_apic.c:2488: warning: ‘vector’ may be used uninitialized in this function

The warning is false, but somewhat legitimate so work around it.
Signed-off-by: Andi Kleen <ak@suse.de>

oprofile uses smp_num_siblings without testing for CONFIG_X86_HT.
I looked at modifying oprofile, but this way is cleaner & simpler
and I didn't see a good reason not to just export it when CONFIG_SMP.

WARNING: "smp_num_siblings" [arch/i386/oprofile/oprofile.ko] undefined!
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andi Kleen <ak@suse.de>

The new PDA code uses a dummy _proxy_pda variable to describe
memory references to the PDA. It is never referenced
in inline assembly, but exists as input/output arguments.
gcc 4.2 in some cases can CSE references to this which causes
unresolved symbols.  Define it to zero to avoid this.
Signed-off-by: Andi Kleen <ak@suse.de>

2.6.19  stopped booting (or booted based on build/config) on our x86_64
systems due to a bug introduced in 2.6.19.  check_nmi_watchdog schedules an
IPI on all cpus to  busy wait on a flag, but fails to set the busywait
flag if NMI functionality is disabled.  This causes the secondary cpus
to spin in an endless loop, causing the kernel bootup to hang.
Depending upon the build, the  busywait flag got overwritten (stack variable)
and caused  the kernel to bootup on certain builds.  Following patch fixes
the bug by setting the busywait flag before returning from check_nmi_watchdog.
I guess using a stack variable is not good here as the calling function could
potentially return while the busy wait loop is still spinning on the flag.

AK: I redid the patch significantly to be cleaner
Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org>
Signed-off-by: Shai Fultheim <shai@scalex86.org>
Signed-off-by: Andi Kleen <ak@suse.de>

Fix verify_quirk_intel_irqbalance(). genapic checks should really
happen only on affected versions of the E7520/E7320/E7525 based platforms.

AK: This should akpm's Coyote SDV
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>

Signed-off-by: Andi Kleen <ak@suse.de>

Signed-off-by: Andi Kleen <ak@suse.de>

* 'drm-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (21 commits)
  Fix http://bugzilla.kernel.org/show_bug.cgi?id=7606
  drm: add flag for mapping PCI DMA buffers read-only.
  drm: fix up irqflags in drm_lock.c
  drm: i915 updates
  drm: i915: fix up irqflags arg
  drm: i915: Only return EBUSY after we've established we need to schedule a new swap.
  drm: i915: Fix 'sequence has passed' condition in i915_vblank_swap().
  drm: i915: Add SAREA fileds for determining which pipe to sync window buffer swaps to.
  drm: Make handling of dev_priv->vblank_pipe more robust.
  drm: DRM_I915_VBLANK_SWAP ioctl: Take drm_vblank_seq_type_t instead
  drm: i915: Add ioctl for scheduling buffer swaps at vertical blanks.
  drm: Core vsync: Don't clobber target sequence number when scheduling signal.
  drm: Core vsync: Add flag DRM_VBLANK_NEXTONMISS.
  drm: Make locked tasklet handling more robust.
  drm: drm_rmdraw: Declare id and idx as signed so testing for < 0 works as intended.
  drm: Change first valid DRM drawable ID to be 1 instead of 0.
  drm: drawable locking + memory management fixes + copyright
  drm: Add support for interrupt triggered driver callback with lock held to DRM core.
  drm: Add support for tracking drawable information to core
  drm: add support for secondary vertical blank interrupt to i915
  ...

Use direct assignment rather than cmpxchg() as the latter is unavailable
and unimplementable on some platforms and is actually unnecessary.

The use of cmpxchg() was to guard against two possibilities, neither of
which can actually occur:

 (1) The pending flag may have been unset or may be cleared.  However, given
     where it's called, the pending flag is _always_ set.  I don't think it
     can be unset whilst we're in set_wq_data().

     Once the work is enqueued to be actually run, the only way off the queue
     is for it to be actually run.

     If it's a delayed work item, then the bit can't be cleared by the timer
     because we haven't started the timer yet.  Also, the pending bit can't be
     cleared by cancelling the delayed work _until_ the work item has had its
     timer started.

 (2) The workqueue pointer might change.  This can only happen in two cases:

     (a) The work item has just been queued to actually run, and so we're
         protected by the appropriate workqueue spinlock.

     (b) A delayed work item is being queued, and so the timer hasn't been
     	 started yet, and so no one else knows about the work item or can
     	 access it (the pending bit protects us).

     Besides, set_wq_data() _sets_ the workqueue pointer unconditionally, so
     it can be assigned instead.

So, replacing the set_wq_data() with a straight assignment would be okay
in most cases.

The problem is where we end up tangling with test_and_set_bit() emulated
using spinlocks, and even then it's not a problem _provided_
test_and_set_bit() doesn't attempt to modify the word if the bit was
set.

If that's a problem, then a bitops-proofed assignment will be required -
equivalent to atomic_set() vs other atomic_xxx() ops.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Amiga PCMCIA NE2000 Ethernet: Add missing initialization of dev->irq
Signed-off-by: Kars de Jong <jongk@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Remove bogus comments about unexporting cache_{push,clear}(), as inline
dma_cache_maintenance() (used by at least bionet and pamsnet) calls them.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Atari IDE: The interrupt needs SA_SHIRQ now to get registered.
Signed-off-by: Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Make sun3 scsi drivers compile/work again (though with way too many warnings...)

Tested on 3/50, 3/60.
Signed-off-by: Sam Creasey <sammy@sammy.net>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

General compile fixes for 2.6.16 for sun3, and some updates to make the new
bootloader work correctly.  Tested on 3/50, 3/60, 3/80.
Signed-off-by: Sam Creasey <sammy@sammy.net>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

- 7990: request_irq() should have SA_SHIRQ flag set
- hplance_init() printed dev->name before register_netdev() had filled it in
Signed-off-by: Kars de Jong <jongk@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>