The d_instantiate hook for Smack can hang on the root inode of a
filesystem if the file system code has not really done all the set-up.
Fuse is known to encounter this problem.

This change detects an attempt to instantiate a root inode and addresses
it early in the processing, before any attempt is made to do something
that might hang.
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Tested-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  libata-sff: Fix oops reported in kerneloops.org for pnp devices with no ctl
  libata: kill unused constants
  sata_mv: PHY_MODE4 cleanups
  [libata] ata_piix: more acer short cable quirks
  [libata] ACPI: Properly handle bay devices in dock stations

* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
  [SCSI] qla2xxx: Update version number to 8.02.01-k4.
  [SCSI] qla2xxx: Correct handling of AENs postings for vports.
  [SCSI] qla2xxx: Revert "qla2xxx: Use proper HA during asynchronous event handling."
  [SCSI] ibmvscsi: Non SCSI error status fixup
  [SCSI] fusion mpt: fix target missing after resetting external raid
  [SCSI] fix intermittent oops in scsi_bus_uevent
  [SCSI] qla2xxx: Update version number to 8.02.01-k3.
  [SCSI] qla2xxx: Revert "qla2xxx: Validate mid-layer 'underflow' during check-condition handling."
  [SCSI] qla2xxx: Disable local-interrupts while polling for RISC status.
  [SCSI] qla2xxx: Extend the 'fw_dump' SYSFS node the ability to initiate a firmware dump.
  [SCSI] qla2xxx: Don't depend on mailbox return values while enabling FCE tracing.
  [SCSI] qla2xxx: Convert vport_sem to a mutex
  [SCSI] qla2xxx: firmware semaphore to mutex
  [SCSI] qla2xxx: Correct locking within MSI-X interrupt handlers.
  [SCSI] qla2xxx: Display driver version at module init-time.
  [SCSI] qla2xxx: Return correct port_type to FC-transport for Vports.

* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.26:
  sh: Add defconfig for RSK7203.
  sh: Update SE7206 defconfig.
  sh: Disable 4KSTACKS on nommu.
  sh: fix miscompilation of ip_fast_csum with gcc >= 4.3
  sh: module.c use kernel unaligned helpers
  sh/kernel/cpu/irq/intc-sh5.c build fix

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:
  kgdbts: Use HW breakpoints with CONFIG_DEBUG_RODATA
  kgdb: use common ascii helpers and put_unaligned_be32 helper

ptrdiff_t is %t..., not %Z...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

__le16 fields used as host-endian.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Steve French <smfrench@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

* wMaxPacketSize is le16; copying it to a field of local structure and then
  using that field as host-endian (size of object to be allocated) is broken.
* bMaxPacketSize0 is 8-bit; feeding it to le16_to_cpu() is bogus and since the
  result is used as host-endian, it's not even misspelled cpu_to_le16().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

- Make ata_sff_altstatus private so nobody uses it by mistake
- Drop the 400nS delay from it

Add

ata_sff_irq_status	-	encapsulates the IRQ check logic

This function keeps the existing behaviour for altstatus using devices. I
actually suspect the logic was wrong before the changes but -rc isn't the
time to play with that

ata_sff_sync		-	ensure writes hit the device

Really we want an io* operation for 'is posted' eg ioisposted(ioaddr) so
that we can fix the nasty delay this causes on most systems.

- ata_sff_pause		-	400nS delay

Ensure the command hit the device and delay 400nS

- ata_sff_dma_pause

Ensure the I/O hit the device and enforce an HDMA1:0 transition delay.
Requires altstatus register exists, BUG if not so we don't risk
corruption in MWDMA modes. (UDMA the checksum will save your backside in
theory)

The only other complication then is devices with their own handlers.
rb532 can use dma_pause but scc needs to access its own altstatus
register for internal errata workarounds so directly call the drivers own
altstatus function.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

Kill a few unused constants.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

The handling for PHY_MODE4 was originally just cloned from the
Marvell proprietary driver (with their blessing).
But we can do better than that.

Tidy things up with some judicious mask definitions, to improve maintainability.
Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

Add ICH6 on ACER Aspire 1694WLMi to list of laptops that use short cables
rather than 80 wire

OriginalAuthor: Tiago Sousa
OriginalLocation: http://launchpadlibrarian.net/11627664/new.ich_laptop.short.cables.diff
Bug: #187121
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: maximilian attems <max@stro.at>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

* Differentiate between bay devices in dock stations and others:

 - When an ACPI_NOTIFY_EJECT_REQUEST appears, just signal uevent to
   userspace (that is when the optional eject button on a bay device is
   pressed/pulled) giving the possibility to unmount file systems and to
   clean up. Also, only send uevent in case we get an EJECT_REQUEST
   without doing anything else. In other cases, you'll get an add/remove
   event because libata attaches/detaches the device.

 - In case of a dock event, which in turn signals an
   ACPI_NOTIFY_EJECT_REQUEST, immediately detach the device, because it
   may already have been gone

* In case of an ACPI_NOTIFY_DEVICE/BUS_CHECK, evaluate _STA to check if
  the device has been plugged or unplugged. If plugged, hotplug it, if
  unplugged, just signal event to userspace
  (initial patch by Matthew Garrett <mjg59@srcf.ucam.org>)

* Call ACPI _EJ0 for detached devices
Signed-off-by: Holger Macht <hmacht@suse.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

The tty layer provides a callback that is used when the line discipline
is changed. Some hardware uses this to configure hardware specific
features such as IrDA mode on serial ports. Unfortunately the serial
layer does not provide this feature or pass it down to drivers.

Blackfin used to hack around this by rewriting the tty ops, but those are
now properly shared and const so the hack fails. Instead provide the
proper operations.

This change plus a follow up from the Blackfin guys is needed to avoid
blackfin losing features in this release.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

RSK7203 is supportable through the generic machvec, so we add a defconfig
for those bits. This gets updated with more complete board support later.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Both the PNP/PCI conflict detection quirk and the PNP system
driver must use the same mechanism to mark resources as disabled.

I think it's best to keep the resource and to keep the type bit
(IORESOURCE_MEM, etc), so that we match the list from firmware
as closely as possible.

Fixes this regression from 2.6.25: http://lkml.org/lkml/2008/6/1/82Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Tested-by: Avuton Olrich <avuton@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  [CRYPTO] cts: Init SG tables

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2:
  [PATCH 3/3] ocfs2/net: Silence build warnings
  [PATCH 2/3] ocfs2/dlm: Silence build warnings
  [PATCH 1/3] ocfs2/net: Silence build warnings
  ocfs2: Rename 'user_stack' plugin structure to 'ocfs2_user_plugin'

Since mmc_spi.h uses irqreturn_t type, it should include appropriate
header, otherwise build will break if users didn't include it (some of
them do not use interrupts).
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
  kbuild: fix $(src) assignmnet with external modules

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6:
  8250 Serial Driver: revert extra IRQ flag definition patch
  Blackfin arch: update anomaly headers from toolchain trunk
  Blackfin arch: Remove bad and usless code
  Blackfin arch: Fix bug - set corret SSEL and IRQ to enable AD7877 on BF527
  Blackfin arch: Fix typo. it should be _outsw_8
  Blackfin arch: Cleanup no functional changes

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Fix DMA nodes in the MPC8610 HPCD device tree
  [POWERPC] Export empty_zero_page and copy_page in arch/ppc
  [POWERPC] Add "memory" clobber to MMIO accessors
  [POWERPC] pasemi: update pasemi_defconfig, enable electra_cf
  electra_cf: Add MODULE_DEVICE_TABLE()

Steps to reproduce:

	modprobe tcrypt		# with CONFIG_DEBUG_SG=y

testing cts(cbc(aes)) encryption
test 1 (128 bit key):
------------[ cut here ]------------
kernel BUG at include/linux/scatterlist.h:65!
invalid opcode: 0000 [1] PREEMPT SMP DEBUG_PAGEALLOC
CPU 0 
Modules linked in: tea xts twofish twofish_common tcrypt(+) [maaaany]
Pid: 16151, comm: modprobe Not tainted 2.6.26-rc4-fat #7
RIP: 0010:[<ffffffffa0bf032e>]  [<ffffffffa0bf032e>] :cts:cts_cbc_encrypt+0x151/0x355
RSP: 0018:ffff81016f497a88  EFLAGS: 00010286
RAX: ffffe20009535d58 RBX: ffff81016f497af0 RCX: 0000000087654321
RDX: ffff8100010d4f28 RSI: ffff81016f497ee8 RDI: ffff81016f497ac0
RBP: ffff81016f497c38 R08: 0000000000000000 R09: 0000000000000011
R10: ffffffff00000008 R11: ffff8100010d4f28 R12: ffff81016f497ac0
R13: ffff81016f497b30 R14: 0000000000000010 R15: 0000000000000010
FS:  00007fac6fa276f0(0000) GS:ffffffff8060e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 00007f12ca7cc000 CR3: 000000016f441000 CR4: 00000000000026e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400
Process modprobe (pid: 16151, threadinfo ffff81016f496000, task ffff8101755b4ae0)
Stack:  0000000000000001 ffff81016f496000 ffffffff80719f78 0000000000000001
 0000000000000001 ffffffff8020c87c ffff81016f99c918 20646c756f772049
 65687420656b696c 0000000000000020 0000000000000000 0000000033341102
Call Trace:
 [<ffffffff8020c87c>] ? restore_args+0x0/0x30
 [<ffffffffa04aa311>] ? :aes_generic:crypto_aes_expand_key+0x311/0x369
 [<ffffffff802ab453>] ? check_object+0x15a/0x213
 [<ffffffff802aad22>] ? init_object+0x6e/0x76
 [<ffffffff802ac3ae>] ? __slab_free+0xfc/0x371
 [<ffffffffa0bf05ed>] :cts:crypto_cts_encrypt+0xbb/0xca
 [<ffffffffa07108de>] ? :crypto_blkcipher:setkey+0xc7/0xec
 [<ffffffffa07110b8>] :crypto_blkcipher:async_encrypt+0x38/0x3a
 [<ffffffffa2ce9341>] :tcrypt:test_cipher+0x261/0x7c6
 [<ffffffffa2cfd9df>] :tcrypt:tcrypt_mod_init+0x9df/0x1b30
 [<ffffffff80261e35>] sys_init_module+0x9e/0x1b2
 [<ffffffff8020c15a>] system_call_after_swapgs+0x8a/0x8f
Code: 45 c0 e8 aa 24 63 df 48 c1 e8 0c 48 b9 00 00 00 00 00 e2 ff ff 48 8b 55 88 48 6b c0 68 48 01 c8 b9 21 43 65 87 48 39 4d 80 74 04 <0f> 0b eb fe f6 c2 01 74 04 0f 0b eb fe 83 e2 03 4c 89 ef 44 89 
RIP  [<ffffffffa0bf032e>] :cts:cts_cbc_encrypt+0x151/0x355
 RSP <ffff81016f497a88>
---[ end trace e8bahiarjand37fd ]---
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

4k stacks on nommu ends up blowing up with all sorts of interesting
slab corruption. Disable this by default unless BROKEN is also
enabled.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

As noted by Matthew Wilcox:

    Kyle McMartin just tracked down a bug on parisc to a missing
    "memory" clobber in the inline assembly implementation of
    ip_fast_csum.  The FRV, SH and Xtensa ports are also missing a
    memory clobber, so I thought it would be polite to let you know.

    The bug manifests as dropped network packets (obviously they have
    the wrong checksum).  It started appearing for parisc with GCC 4.3.

    The GCC manual says:

     If your assembler instructions access memory in an unpredictable
     fashion, add `memory' to the list of clobbered registers.  This
     will cause GCC to not keep memory values cached in registers
     across the assembler instruction and not optimize stores or loads
     to that memory.

    I see that FRV has a 400 byte memory output which may prevent this
    problem from appearing, but SH and Xtensa have nothing to prevent
    this bug.  Hope this saves you a few days of debugging.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Replace the COPY_UNALIGNED_WORD helper.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

This patch fixes the following build error caused by
commit a1dc4b59
(sh: intc_sh5 depends on cayman board for IRQ priority table.):

<--  snip  -->

...
  CC      arch/sh/kernel/cpu/irq/intc-sh5.o
/home/bunk/linux/kernel-2.6/git/linux-2.6/arch/sh/kernel/cpu/irq/intc-sh5.c: In function 'plat_irq_setup':
/home/bunk/linux/kernel-2.6/git/linux-2.6/arch/sh/kernel/cpu/irq/intc-sh5.c:257: error: expected declaration or statement at end of input
make[4]: *** [arch/sh/kernel/cpu/irq/intc-sh5.o] Error 1

<--  snip  -->
Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

When we introduced support for KBUILD_EXTRA_SYMBOLS
we started to include the externam module's kbuild
file when doing the final modpost step.

As external modules often do:
ccflags-y := -I$(src)

We had problems because $(src) was unassinged and
gcc then used the next parameter for -I resulting in
strange build failures.

Fix is to assign $(src) and $(obj) when building
external modules.

This fixes: http://bugzilla.kernel.org/show_bug.cgi?id=10798Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Tvrtko <tvrtko.ursulin@sophos.com>
Cc: Andrea Arcangeli <andrea@qumranet.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>

As Russell pointed out, original patch will break some serial configurations
because of the dependency of the <asm/serial.h> header file.

Revert it first and try to find out other solution later

Cc: Javier Herrero <jherrero@hvsistemas.es>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Russell King <rmk+lkml@arm.linux.org.uk>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

AD7877 use SSEL_2 (P9.9) and IRQ_PF8 (P9.14) on BF527

 - populating JP3 to enable STAMP
 - disable SW11.2 to disconnect SSEL_2/PF12 from Rotary NAND
 - disable SW18.1 to disconnect SSEL_2 from MAX1233 touchscreen chip
Signed-off-by: Bryan Wu <cooloney@kernel.org>

The node for DMA2 in the MPC8610 HPCD device tree has the wrong compatible
properties.  This breaks the DMA driver and the sound driver.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>