[SCSI] aacraid: pci_set_dma_max_seg_size opened up for late model controllers

This patch ensures that the modern adapters get a maximum sg segment
size on par with the maximum transfer size. Added some localized
janitor fixes to the discussion patch I used with Fujita.

FUJITA Tomonori [mailto:fujita.tomonori@lab.ntt.co.jp] sez:
> I think that setting the proper maximum segment size for the late
> model cards (as you did above) makes sense.

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] fix BUG when sum(scatterlist) > bufflen

When sending a SCSI command to a tape drive via the SCSI Generic (sg)
driver, if the command has a data transfer length more than
scatter_elem_sz (32 KB default) and not a multiple of 512, then I either
hit BUG_ON(!valid_dma_direction(direction)) in dma_unmap_sg() or else
the command never completes (depending on the LLDD).

When constructing scatterlists, the sg driver rounds up the scatterlist
element sizes to be a multiple of 512.  This can result in
sum(scatterlist lengths) > bufflen.  In this case, scsi_req_map_sg()
incorrectly sets bio->bi_size to sum(scatterlist lengths) rather than to
bufflen.  When the command completes, req_bio_endio() detects that
bio->bi_size != 0, and so it doesn't call bio_endio().  This causes the
command to be resubmitted, resulting in BUG_ON or the command never
completing.

This patch makes scsi_req_map_sg() set bio->bi_size to bufflen rather
than to sum(scatterlist lengths), which fixes the problem.

Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Acked-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] arcmsr: updates (1.20.00.15)

- add arcmsr_enable_eoi_mode()and readl(reg->iop2drv_doorbell_reg) in
  arcmsr_handle_hbb_isr() on adapter Type B in case of the doorbell
  interrupt clearance is cached

- add conditional declaration for arcmsr_pci_error_detected() and
  arcmsr_pci_slot_reset

- check if the sg list member number exceeds arcmsr default limit in
  arcmsr_build_ccb()

- change the returned value type of arcmsr_build_ccb()from "void" to
  "int" returns FAILED in arcmsr_queue_command()

- modify arcmsr_drain_donequeue() to ignore unknown command and let
  kernel process command timeout.  This could handle IO request violating
  maximum segments, i.e.  Linux XFS over DM-CRYPT.  Thanks to Milan Broz's
  comments <mbroz@redhat.com>

- fix the release of dma memory for type B in arcmsr_free_ccb_pool()

- fix the arcmsr_polling_hbb_ccbdone()

Signed-off-by: Nick Cheng <nick.cheng@areca.com.tw>
Cc: Milan Broz <mbroz@redhat.com>
Cc: <thenzl@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] advansys: make 3 functions static

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] Small cleanups for scsi_host.h

Small cleanups in scsi_host.h. Few #defines make me wonder if their
description is still up to date..?

Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] dc395x: fix uninitialized var warning

drivers/scsi/dc395x.c: In function 'dc395x_init_one':
drivers/scsi/dc395x.c:4270: warning: 'ptr' may be used uninitialized in this function

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] NCR53C9x: remove driver

Acked-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] remove m68k NCR53C9x based drivers

These drivers depend on the deprecated NCR53C9X core and need to be converted
to the esp_scsi core.

Acked-by: Boaz Harrosh <bharrosh@panasas.com>
Cc: Linux/m68k <linux-m68k@vger.kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] dec_esp: Remove driver

This driver depends on the deprecated NCR53C9X core and needs to be converted
to the esp_scsi core.

Acked-by: Boaz Harrosh <bharrosh@panasas.com>
Cc: "Maciej W. Rozycki" <macro@linux-mips.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] kernel-doc: fix scsi docbook

Add missing function parameter descriptions.
Make function short description fit on one line as required.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] update my email address

This updates steeleye -> hansenpartnership in the documentation since
some email has been going astray because of this.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] add protocol definitions

A lot of SCSI command replies have a protocol ID field.  Add
definitions for the interpretation of that from SPC-3.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] sd: handle bad lba in sense information

Some devices report medium error locations incorrectly.  Add guards to
make sure the reported bad lba is actually in the request that caused
it.  Additionally remove the large case statment for sector sizes and
replace it with the proper u64 divisions.

Tested-by: Mike Snitzer <snitzer@gmail.com>
Cc: Stable Tree <stable@kernel.org>
Cc: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] qla2xxx: Update version number to 8.02.00-k8.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] qla2xxx: Correct issue where incorrect init-fw mailbox command was used on non-NPIV capable ISPs.

BIT_2 of the firmware attributes is only valid on FW-interface-2
type HBAs.  Code in commit
c48339decceec8e011498b0fc4c7c7d8b2ea06c1 would cause the
incorrect initialize-firmware mailbox command to be issued for
non-NPIV capable ISPs.  Correct this by reverting to previously
used (and correct) pre-condition 'if' check.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] qla2xxx: Access the proper 'physical' port in FC-transport callbacks.

 For following fc_host specific attributes, vports rely on the pport.
 So, this patch changed way to access the data for those attributes so that
 they can access pport's.
 - get_host_speed (speed)
 - get_host_port_state (port_state)
 - get_host_port_type (port_type)
 - get_fc_host_stats

Also, added PORT_SPEED_8GB case in the speed attribute for 8Gb HBAs.

Signed-Off-by: Seokmann Ju <seokmann.ju@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] qla2xxx: Correct issue where vport-state was not updated during an ISP_ABORT_NEEDED requst.

While running IO simultaneously through physical port and virtual
port, if user changes Data Rate (from scli utility), IO through
virtual port fails.  It failed because the vport had not received
the ISP_ABORT_NEEDED notification.

Signed-Off-by: Seokmann Ju <seokmann.ju@qlogic.com>
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] qla2xxx: Move RISC-interrupt-register modifications to qla2x00_request_irqs().

There's no functional change involved with this update, instead
it simply migrates the "set cleared interrupt state" codes to a
more approprate method, qla2x00_request_irqs(), and cleans-up the
driver's probe() logic.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] qla2xxx: Consolidate RISC-parity enablement codes.

Collapse duplicate codes called during probe() and RISC-reset
into qla2x00_setup_chip().

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] qla2xxx: Cleanse memory allocation logic during probe.

- Drop loop-till-allocated structure of code within
  qla2x00_mem_alloc().
- Properly unwind deallcations of memory during failures.
- Drop qla2x00_allocate_sp_pool() and qla2x00_free_sp_pool()
  functions as their implementations can easily be collapsed into
  the callers.
- Defer DMA pool allocation of SFP data until requested.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] qla2xxx: Clear EFT buffer before firmware reinitialization.

To insure that there is no stale data present during EFT
re-registration.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] qla2xxx: Cleanup any outstanding SRB resources during shutdown.

Refactor SRB-failure completion codes in the process.  Also,
signal the DPC routine to complete sooner as backend processing
at shutdown-time is superflous.

[jejb: resolve conflicts with pci_enable_device_bars removal]

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] qla2xxx: Add MODULE_FIRMWARE hint for ISP25XX firmware.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] qla2xxx: Correct resource_size_t usages.

Hmm, it looks like the conversion to resource_size_t usage
(3776541d8a46347a4924353a192c6ce4a3d04e2e) requires some additional
fixups to cleanup the structure-pointer castings used during IO mapped
accesses to the chip.

There's only a small number of locations, where the driver uses IO
mapped accesses to the hardware, the patch below should take care of
it without introducing to many structural changes to code flow.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] iscsi: bump version to 2.0-868

Set iscsi version to 2.0-868

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] libiscsi: fix session age rollover and remove cid encoding

The session age mask is only 4 bits, but session->age is 32. When
it gets larger then 15 and we try to or the bits some bits get
dropped and the check for session age in iscsi_verify_itt is useless.

The ISCSI_CID_MASK related bits are also useless since cid is always
one.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] iscsi: fix up iscsi printk prefix

Some iscsi class messages have the dev_printk prefix and some libiscsi
and iscsi_tcp messages have "iscsi" or the module name as a prefix which
is normally pretty useless when trying to figure out which session
or connection the message is attached to. This patch adds iscsi lib
and class dev_printks so all messages have a common prefix that
can be used to figure out which object printed it.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] iscsi class: fix iscsi conn attr counter

There are 13 iscsi conn attrs, but since the IF/OF markers were not being
used we did not notice that we forgot to increment the ISCSI_CONN_ATTRS
counter.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] libiscsi: fix setting of nop timer

If we rollover then we could get a next_timeout of zero, so we need
to set the new timer to that value.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] qla4xxx: add async scan support

qla4xxx has the old school startup/probe where it finds presetup sessions
in its flash and then attempts to log into them before returning from the
probe. This however, makes it very simple to add a iscsi class scan finished
helper which the driver can use.

In future patches Dave or I will rip apart the driver to make it more
like qla2xxx, but for now this is a very simple two line patch which
fixes the problem of trying to figure out when the initial sessions
are done being scanned.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Cc: David Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] iscsi class: add async scan helper

In qla4xxx's probe it will call the iscsi session setup functions
for session that got setup on the initial start. This then makes
it easy for the iscsi class to export a helper which indicates
when those scans are done.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] qla4xxx: fix recovery timer and session unblock race

If qla4xxx is resetting up a session and the recovery timer
fires we do not want to just set it to dead, because
the dpc thread could have just set it to online and is in the
middle of resetting it up.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Cc: David Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] iscsi class: add session scanning

This just adds iscsi session scanning which works like fc rport scanning.
The future patches will hook the drivers into Mathew Wilcox's async
scanning infrastructure, so userspace does not have to special case
iscsi and so userspace does not have to make a extra special case for
hardware iscsi root scanning.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] qla4xxx: use iscsi class session state check ready

This has qla4xxx use the iscsi class's check ready function
in the queue command function, so all iscsi drivers return the
same error value for common problems.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Cc: David Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] qla4xxx: directly call iscsi recovery functions

Qla4xxx can just call the iscsi recovery functions directly.
There is no need for userspace to do this for qla4xxx, because
we do not use the mutex to iterate over devices anymore and iscsi_block
/unblock_session can be called from interrupt context or the dpc thread.
And having userspace do this just creates uneeded headaches for qla4xxx root
situations where the session may experience problems. For example
during the kernel shutdown the scsi layer wants to send sync caches, but at
this time userspace is not up (iscsid is not running), so we cannot
recover from the problem.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Cc: David Somayajulu <david.somayajulu@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] iscsi class, libiscsi: add iscsi sysfs session state file

This adds a iscsi session state file which exports the session
state for both software and hardware iscsi. It also hooks libiscsi
in.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] arm: convert to accessors and !use_sg cleanup

 - convert to accessors and !use_sg cleanup

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Tested-by: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] mca_53c9x: remove driver

This driver depends on the deprecated NCR53C9X core and needs to be converted
to the esp_scsi core.

Acked-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] sym53c8xx: fix resid calculation

This patch fixes the calculation of the data transfer residual for the
case of a command that is supposed to transfer an odd number of bytes on
a wide bus but transfers nothing instead.

Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Cc: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] ps3rom: sector size should be 512 bytes

It should be desired that 64 KiB is available for ATAPI transferrring.
(Historically) in SCSI/block layer sector size is defined as 512 during
sector-byte calculation.
Originally in ps3rom.c CD_FRAMESIZE (2048) was used, which limited
/sys/block/sr0/queue/max_sectors_kb to 16 KiB (32 sectors).

Signed-off-by: Aegis Lin <aegislin@gmail.com>
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] sun3x_esp: convert to esp_scsi

Converted sun3x_esp driver to use esp_scsi.c

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] libiscsi: make __iscsi_complete_pdu() static

__iscsi_complete_pdu() can now become static.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] aacraid: fib context lock for management ioctls (take 2)

The first patch (a119ee8ee3045bf559d4cf02d72b112f3de2a15b) was a bit
too aggressive and nested the locks (!) unit testing was in
error. This patch was reverted by
203a512f0976e8ba85df36d76b40af6c80239121.

This new patch should fix the locks correctly.

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

Merge branch 'for-linus' of git://git./linux/kernel/git/shaggy/jfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6:
  BKL-removal: Implement a compat_ioctl handler for JFS
  BKL-removal: Use unlocked_ioctl for jfs

Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (34 commits)
  Input: i8042 - non-x86 build fix
  Input: pxa27x_keypad - also enable on PXA3xx
  Input: pxa27x_keypad - add debounce_interval to the keypad platform data
  Input: pxa27x_keypad - use device resources for I/O memory mapping and IRQ
  Input: pxa27x_keypad - enable rotary encoders and direct keys
  Input: pxa27x_keypad - introduce pxa27x_keypad_config()
  Input: pxa27x_keypad - introduce driver structure and use KEY() to define matrix keys
  Input: pxa27x_keypad - remove pin configuration from the driver
  Input: pxa27x_keypad - rename the driver (was pxa27x_keyboard)
  Input: constify function pointer tables (seq_operations)
  Input: i8042 - add Fujitsu-Siemens Amilo Pro 2010 to nomux list
  Input: i8042 - enable DMI quirks on x86-64
  Input: i8042 - add Dritek quirk for Acer Aspire 9110
  Input: add input event to APM event bridge
  Input: mousedev - use BIT_MASK instead of BIT
  Input: remove duplicate includes
  Input: remove cdev from input_dev structure
  Input: remove duplicated headers in drivers/char/keyboard.c
  Input: i8042 - add Dritek keyboard extension quirk
  Input: add Tosa keyboard driver
  ...

Merge branch 'upstream-linus' of git://git./linux/kernel/git/mfasheh/ocfs2

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2:
  ocfs2: Negotiate locking protocol versions.

Merge git://git./linux/kernel/git/gregkh/driver-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6:
  sysfs: remove BUG_ON() from sysfs_remove_group()
  Driver core: Revert "Fix Firmware class name collision"
  Block: Fix whole_disk attribute bug

BKL-removal: Implement a compat_ioctl handler for JFS

The ioctls were already compatible except for the actual values so this
was fairly easy to do.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>

i915: Fix GR register array size off-by-one bug

Make sure we have enough room for all the GR registers or we'll end up
clobbering the AR index register (which should actually be harmless
unless the BIOS is making an assumption about it).

Noticed-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Jesse Barnes <jesse.barnes@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

BKL-removal: Use unlocked_ioctl for jfs

Convert jfs_ioctl over to not use the BKL. The only potential race
I could see was with two ioctls in parallel changing the flags
and losing the updates. Use the i_mutex to protect against this.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>

sysfs: remove BUG_ON() from sysfs_remove_group()

It's possible that the caller of sysfs_remove_group messed up and passed in an attribute group that was not really registered to this kobject.  But don't panic for such a foolish error, spit out a warning about what happened, and continue on our way safely.

Cc: Roland Dreier <rdreier@cisco.com>
Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Driver core: Revert "Fix Firmware class name collision"

This reverts commit 109f0e93b6b728f03c1eb4af02bc25d71b646c59.

The original patch breaks BIOS updates on all Dell machines. The path to
the firmware file for the dell_rbu driver changes, which breaks all of
the userspace tools which rely on it.

Note that this patch re-introduces a problem with i2c name collision
that was previously fixed by this patch.

Signed-off-by: Michael E Brown <michael_e_brown@dell.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Block: Fix whole_disk attribute bug

The "whole_disk" attribute was not properly converted in the block
device conversion earlier, and if the file is read, bad things can
happen.  This patch fixes this, making the attribute an empty one,
preserving the original functionality.

Many thanks to David Miller for finding this, and pointing me in the
proper place within the block code to look.

Acked-by: David S. Miller <davem@davemloft.net>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Merge git://git./linux/kernel/git/davem/sparc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC32]: Use regsets in arch_ptrace().
  [SPARC64]: Use regsets in arch_ptrace().
  [SPARC32]: Use regsets for ELF core dumping.
  [SPARC64]: Use regsets for ELF core dumping.
  [SPARC64]: Remove unintentional ptrace debugging messages.
  [SPARC]: Move over to arch_ptrace().
  [SPARC]: Remove PTRACE_SUN* handling.
  [SPARC]: Kill DEBUG_PTRACE code.
  [SPARC32]: Add user regset support.
  [SPARC64]: Add user regsets.
  [SPARC64]: Fix booting on non-zero cpu.

Merge git://git.infradead.org/mtd-2.6

* git://git.infradead.org/mtd-2.6: (120 commits)
  [MTD] Fix mtdoops.c compilation
  [MTD] [NOR] fix startup lock when using multiple nor flash chips
  [MTD] [DOC200x] eccbuf is statically defined and always evaluate to true
  [MTD] Fix maps/physmap.c compilation with CONFIG_PM
  [MTD] onenand: Add panic_write function to the onenand driver
  [MTD] mtdoops: Use the panic_write function when present
  [MTD] Add mtd panic_write function pointer
  [MTD] [NAND] Freescale enhanced Local Bus Controller FCM NAND support.
  [MTD] physmap.c: Add support for multiple resources
  [MTD] [NAND] Fix misparenthesization introduced by commit 78b65179...
  [MTD] [NAND] Fix Blackfin NFC ECC calculating bug with page size 512 bytes
  [MTD] [NAND] Remove wrong operation in PM function of the BF54x NFC driver
  [MTD] [NAND] Remove unused variable in plat_nand_remove
  [MTD] Unlocking all Intel flash that is locked on power up.
  [MTD] [NAND] at91_nand: Make mtdparts option can override board info
  [MTD] mtdoops: Various minor cleanups
  [MTD] mtdoops: Ensure sequential write to the buffer
  [MTD] mtdoops: Perform write operations in a workqueue
  [MTD] mtdoops: Add further error return code checking
  [MTD] [NOR] Test devtype, not definition in flash_probe(), drivers/mtd/devices/lart.c
  ...

Merge branch 'release' of git://git./linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (112 commits)
  ACPI: fix build warning
  Revert "cpuidle: build fix for non-x86"
  ACPI: update intrd DSDT override console messages
  ACPI: update DSDT override documentation
  ACPI: Add "acpi_no_initrd_override" kernel parameter
  ACPI: its a directory not a folder....
  ACPI: misc cleanups
  ACPI: add missing prink prefix strings
  ACPI: cleanup acpi.h
  ACPICA: fix CONFIG_ACPI_DEBUG_FUNC_TRACE build
  ACPI: video: Ignore ACPI video devices that aren't present in hardware
  ACPI: video: reset brightness on resume
  ACPI: video: call ACPI notifier chain for ACPI video notifications
  ACPI: create notifier chain to get hotkey events to graphics driver
  ACPI: video: delete unused display switch on hotkey event code
  ACPI: video: create "brightness_switch_enabled" modparam
  cpuidle: Add a poll_idle method
  ACPI: cpuidle: Support C1 idle time accounting
  ACPI: enable MWAIT for C1 idle
  ACPI: idle: Fix acpi_safe_halt usages and interrupt enabling/disabling
  ...

Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight

* 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight:
  backlight: Add OMAP1 PWL backlight driver
  backlight: Avoid unecessary driver callbacks

Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds

* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds:
  leds: Add HP Jornada 6xx driver
  leds: Remove the now uneeded ixp4xx driver
  leds: Add power LED to the wrap driver
  leds: Fix led-gpio active_low default brightness
  leds: hw acceleration for Clevo mail LED driver
  leds: Add support for hardware accelerated LED flashing
  leds: Standardise LED naming scheme
  leds: Add clevo notebook LED driver

m68k: kill page walker compile warning

The recently introduced page walker (walk_page_range()) calls pgd_offset with a
const struct mm_struct pointer, causing the following compile warning on m68k:

    mm/pagewalk.c:111: warning: passing argument 1 of 'pgd_offset' discards qualifiers from pointer target type

Make the `mm' parameter of the inline function pgd_offset() const to shut it
up.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Merge branch 'drm-patches' of git://git./linux/kernel/git/airlied/drm-2.6

* 'drm-patches' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (22 commits)
  drm: add initial r500 drm support
  radeon: setup the ring buffer fetcher to be less agressive.
  drm: fixup some of the ioctl function exit paths
  drm: the drm really should call pci_set_master..
  i915: Add chipset id for Intel Integrated Graphics Device
  drm: cleanup DRM_DEBUG() parameters
  drm/i915: add support for E7221 chipset
  drm: don't cast a pointer to pointer of list_head
  mga_dma: return 'err' not just zero from mga_do_cleanup_dma()
  drm: add _DRM_DRIVER flag, and re-order unload.
  drm: enable udev node creation
  drm: Make DRM_IOCTL_GET_CLIENT return EINVAL when it can't find client #idx.
  drm: move drm_mem_init to proper place in startup sequence
  drm: call driver load function after initialising AGP
  drm: Fix ioc32 compat layer
  drm: fd.o bug #11895: Only add the AGP base to map offset if the caller didn't.
  i915: add suspend/resume support
  drm: update DRM sysfs support
  drm: Initialize the AGP structure's base address at init rather than enable.
  drm: move two function extern into the correct block
  ...

Merge git://git./linux/kernel/git/davej/cpufreq

* git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] Add missing printk levels to e_powersaver
  [CPUFREQ] Fix sparse warning in powernow-k8
  [CPUFREQ] Support Model D parts and newer in e_powersaver
  [CPUFREQ] Powernow-k8: Update to support the latest Turion processors
  [CPUFREQ] fix configuration help message
  [CPUFREQ] powernow-k8 print pstate instead of fid/did for family 10h
  [CPUFREQ] Eliminate cpufreq_userspace scaling_setspeed deadlock
  [CPUFREQ] gx-suspmod.c: use boot_cpu_data instead of current_cpu_data
  [CPUFREQ] fix incorrect comment on show_available_freqs() in freq_table.c
  [CPUFREQ] drivers/cpufreq: Add missing "space"
  [CPUFREQ] arch/x86: Add missing "space"
  [CPUFREQ] Remove pointless Kconfig dependancy

Merge branch 'for-2.6.25' of git://git./linux/kernel/git/paulus/powerpc

* 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (69 commits)
  [POWERPC] Add SPE registers to core dumps
  [POWERPC] Use regset code for compat PTRACE_*REGS* calls
  [POWERPC] Use generic compat_sys_ptrace
  [POWERPC] Use generic compat_ptrace_request
  [POWERPC] Use generic ptrace peekdata/pokedata
  [POWERPC] Use regset code for PTRACE_*REGS* requests
  [POWERPC] Switch to generic compat_binfmt_elf code
  [POWERPC] Switch to using user_regset-based core dumps
  [POWERPC] Add user_regset compat support
  [POWERPC] Add user_regset_view definitions
  [POWERPC] Use user_regset accessors for GPRs
  [POWERPC] ptrace accessors for special regs MSR and TRAP
  [POWERPC] Use user_regset accessors for SPE regs
  [POWERPC] Use user_regset accessors for altivec regs
  [POWERPC] Use user_regset accessors for FP regs
  [POWERPC] mpc52xx: fix compile error introduce when rebasing patch
  [POWERPC] 4xx: PCIe indirect DCR spinlock fix.
  [POWERPC] Add missing native dcr dcr_ind_lock spinlock
  [POWERPC] 4xx: Fix offset value on Warp board
  [POWERPC] 4xx: Add 440EPx Sequoia ehci dts entry
  ...

Char: mxser, add support for CP-114UL

Add new card (0x1393:0x1143) support added in 1.11 original driver, also
allow rate change in set_serial_info ioctl (as per 1.11 too).

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Reviewed-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Char: mxser, remove it

(Old) mxser is obsoleted by mxser_new and scheduled for removal on Dec 2007.
Remove it by renaming mxser_new to mxser.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Reviewed-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Char: mxser, ioctl cleanup

- remove dead MOXA_GET_CONF (always returned -ENXIO)
- remove useless MOXA_GET_CUMAJOR (unused)
- use get/put_user instead of copy_from/to_user for simple types
- cleanup TIOCMIWAIT -- return -ERESTARTSYS on signal, move condition into
  separate function

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Reviewed-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Char: mxser, simplify mxser_get_serial_info

Initialize temp structure directly with proper values without first zeroing
it and setting later as suggested by Jan.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Jan Engelhardt <jengelh@computergmbh.de>
Reviewed-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Char: mxser, reorder mxser_cardinfo fields

Reorder fields to save some memory and code on 64bit due to alignment as
suggested by Jan.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Jan Engelhardt <jengelh@computergmbh.de>
Reviewed-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Char: mxser, 0 to NULL in pointer

Don't test a pointer against 0. Use NULL instead.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Reviewed-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Char: mxser, remove special baudrate processing

Let the special baudrate processing on the tty layer.  Also remove
set/get_special_rate ioctls introduced in commit
f64c84a1668930d1ca2b7dbaa92146c2139cb508, since it is no longer needed.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Reviewed-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mxser/mxser_new: first pass over termios reporting for the mxser cards

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Char: riscom8, remove wakeup and hangup bottomhalves

Both of them may be called directly from the code, don't add special code
and variables and schedule a work for them.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Char: serial167, remove bottomhalf

- Cy_EVENT_OPEN_WAKEUP is simple wake_up
- Cy_EVENT_HANGUP is wake_up + tty_hangup, which schedules its own work
- Cy_EVENT_WRITE_WAKEUP is tty_wakeup which may be called directly too

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Char: stallion, remove bottomhalf

- tty_hangup schedules a bottomhalf itself, tty_wakeup doesn't need it
- call the CD code (part of work handler previously) directly from the code
  (it wakes somebody up or calls tty_hangup at worse)

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Char: specialix, remove bottomhalves

- tqueue is used only for tty_wakeup, call it directly from the code
- tqueue_hangup for tty_hangup, it schedules its own work, use it directly
  too

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Char: istallion, remove hangup bottomhalf

tty_hangup schedules a work for hangup itself, no need to do it in the driver.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Char: esp, remove hangup and wakeup bottomhalves

There is no need to schedule a bottomhalf for either of them. One is fast
and the another schedules a bottomhalf itself.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Char: riscom8, change rc_init_drivers prototype

Let compiler decide if the rc_init_drivers function will be inlined and
mark it as __init, because it's called only from __init function.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Char: stallion, fix compiler warnings

Don't emit warnings on 64 bit platforms from min(). sizeof() on those
is not uint, neither 2 pointers difference, cast it to uint by min_t in
both cases.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Char: mxser_new, ioaddresses are ulong

To not pass ulong address as int parameter, switch it to ulong.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Char: char/serial, remove SERIAL_TYPE_NORMAL redefines

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Char: rocket, remove useless macros

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Char: rocket, printk cleanup

- add KERN_ level to each print
- change some levels appropriately
- add \n at the ends where missing
- change two complex printks into dev_info, where the original info is
  printed automatically

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Char: rocket, switch long delay to sleep

Don't busy wait for whole 1s when registering some rocket modems. Sleep
instead since we are not in atomic.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

i8k: Inspiron E1705 fix

Needs the following in order to work correctly on my Inspiron E1705:

Add DMI Product name to i8k for Dell MP061 hardware (Inspiron 9400/E1705)

Signed-off-by: Frank Sorenson <frank@tuxrocks.com>
Cc: Bradley Smith <bradjsmith@btinternet.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

I8K: add i8k driver to the x86_64 Kconfig

Adds i8k driver to the x86_64 Kconfig.

Signed-off-by: Bradley Smith <bradjsmith@btinternet.com>
Cc: Frank Sorenson <frank@tuxrocks.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

I8K: allow i8k driver to be built on x86_64 systems

Adds #if clause and additional inline assembly so that the driver
builds on x86_64 systems.

Signed-off-by: Bradley Smith <bradjsmith@btinternet.com>
Cc: Frank Sorenson <frank@tuxrocks.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Add cmpxchg_local to xtensa

Use the architecture specific __cmpxchg_u32 for 32 bits cmpxchg)_local. Else,
use the new generic cmpxchg_local (disables interrupt).

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Chris Zankel <chris@zankel.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Add cmpxchg_local to v850

Use the new generic cmpxchg_local (disables interrupt). Also use the generic
cmpxchg as fallback if SMP is not set.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Miles Bader <miles.bader@necel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Add cmpxchg_local to sparc64

Use cmpxchg_u32 and cmpxchg_u64 for cmpxchg_local and cmpxchg64_local. For other
type sizes, use the new generic cmpxchg_local (disables interrupt).

Change:
Since the header depends on local_irqsave/local_irqrestore, it must be
included after their declaration.

Actually, being below the
#include <linux/irqflags.h> should be enough, and on sparc64 it is
included at the beginning of system.h.

So it makes sense to move it up for sparc64.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Add cmpxchg_local to sparc, move __cmpxchg to system.h

Move cmpxchg and add cmpxchg_local to system.h.
Use the new generic cmpxchg_local (disables interrupt).

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: William Lee Irwin III <wli@holomorphy.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Add cmpxchg_local to s390

Use the standard __cmpxchg for every type that can be updated atomically.
Use the new generic cmpxchg_local (disables interrupt) for other types.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Add cmpxchg_local to ppc

Add a local processor version of cmpxchg for ppc.

Implements __cmpxchg_u32_local and uses it for 32 bits cmpxchg_local.
It uses the non NMI safe cmpxchg_local_generic for 1, 2 and 8 bytes
cmpxchg_local.

Signed-off-by: Gunnar Larisch <gl@denx.de>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Kumar Gala <galak@gate.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Add cmpxchg_local to parisc

Use the new generic cmpxchg_local (disables interrupt). Also use the generic
cmpxchg as fallback if SMP is not set.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: Matthew Wilcox <willy@debian.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Add cmpxchg_local to m68knommu

Use the new generic cmpxchg_local (disables interrupt). Also use the generic
cmpxchg as fallback if SMP is not set.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Greg Ungerer <gerg@snapgear.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Add cmpxchg_local to m86k

Use the new generic cmpxchg_local (disables interrupt). Also use the generic
cmpxchg as fallback if SMP is not set.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

local_t m32r use architecture specific cmpxchg_local

On m32r, use the new cmpxchg_local as primitive for the local_cmpxchg
operation.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Acked-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

m32r: build fix of arch/m32r/kernel/smpboot.c

This patch is for Mathieu Desnoyers's include/asm-m32r/local.h.
Applying the new include/asm-m32r/local.h, inclusion of linux/sched.h
is needed to fix a build error of arch/m32r/kernel/smpboot.c.

<--  snip  -->
  ...
  CC      arch/m32r/kernel/smpboot.o
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c: In function 'do_boot_cpu':
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:279: error: implicit declaration of function 'fork_idle'
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:279: warning: assignment makes pointer from integer without a cast
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:283: error: dereferencing pointer to incomplete type
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:289: error: dereferencing pointer to incomplete type
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:290: error: implicit declaration of function 'task_thread_info'
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:290: error: invalid type argument of '->'
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c: In function 'start_secondary':
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:429: error: implicit declaration of function 'cpu_init'
make[2]: *** [arch/m32r/kernel/smpboot.o] Error 1
<--  snip  -->

Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Fix m32r __xchg

the #endif  /* CONFIG_SMP */ should cover the default condition, or it may cause
bad parameter to be silently missed.

To make it work correctly, we have to remove the ifdef CONFIG SMP surrounding
__xchg_called_with_bad_pointer declaration. Thanks to Adrian Bunk for detecting
this.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Acked-by: Hirokazu Takata <takata@linux-m32r.org>
Cc: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

New cmpxchg_local (optimized for UP case) for m32r

Add __xchg_local, xchg_local (define), __cmpxchg_local_u32, __cmpxchg_local,
cmpxchg_local(macro).

cmpxchg_local and cmpxchg64_local will use the architecture specific
__cmpxchg_local_u32 for 32 bits arguments, and use the generic
__cmpxchg_local_generic for 8, 16 and 64 bits arguments.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Acked-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Add cmpxchg_local, cmpxchg64 and cmpxchg64_local to ia64

Add the primitives cmpxchg_local, cmpxchg64 and cmpxchg64_local to ia64. They
use cmpxchg_acq as underlying macro, just like the already existing ia64
cmpxchg().

Changelog:

ia64 cmpxchg_local coding style fix
Quoting Keith Owens:

As a matter of coding style, I prefer

#define cmpxchg_local   cmpxchg
#define cmpxchg64_local cmpxchg64

Which makes it absolutely clear that they are the same code.  With your
patch, humans have to do a string compare of two defines to see if they
are the same.

Note cmpxchg is *not* a performance win vs interrupt disable / enable on IA64.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Acked-by: Christoph Lameter <clameter@sgi.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Keith Owens <kaos@ocs.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>