We need to jump to the part of just flushing the request
when we cannot claim the bus. Sending commands to a bus
we do not own will give unpredictable results.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

After mmc_block's remove function has exited, we must not
touch the card structure in any way. This means we not only
must remove the gendisk, we must also flush out any
remaning requests already queued up.

We previously removed the disk, but didn't flush it,
causing oops:es when removing a card in the middle of a
transfer.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

The SDHCI spec implies that is is incorrect to set a clock
frequency above 25 MHz without setting the high speed bit.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

Modern SD cards support a clock speed of 50 MHz. Make sure we test for
this capability and do the song and dance required to activate it.

Activating high speed support actually modifies the TRAN_SPEED field
of the CSD. But as the spec says that the cards must report 50 MHz,
we might as well skip re-reading the CSD.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

Several fixes for mmc_delay():

 * Repair if-clause that was supposed to detect sub-hz delays.
 * Change yield() to cond_resched() as yield() no longer has the
   semantics we desire.
 * mmc_delay() is used to guarantee protocol delays, so we cannot
   return early (i.e. use _interruptable).

Based on patch by Amol Lad.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

This change adds support for the mmc4 4-bit wide-bus mode.

The mmc4 spec defines 8-bit and 4-bit transfer modes. As we do not support
any 8-bit hardware, this patch only adds support for the 4-bit mode, but
it can easily be built upon when the time comes.

The 4-bit mode is electrically compatible with SD's 4-bit mode but the
procedure for turning it on is different. This patch implements only
the essential parts of the procedure as defined by the spec. Two additional
steps are recommended but not compulsory. I am documenting them here so
that there's a record.

1) A bus-test mechanism is implemented using dedicated mmc commands which allow
for testing the functionality of the data bus at the electrical level. This is
pretty paranoid and they way the commands work is not compatible with the mmc
subsystem (they don't set valid CRC values).

2) MMC v4 cards can indicate they would like to draw more than the default
amount of current in wide-bus modes. We currently will never switch the card
into a higher draw mode. Supposedly, allowing the card to draw more current
will let it perform better, but the specs seem to indicate that the card will
function correctly without the mode change. Empirical testing supports this
interpretation.
Signed-off-by: Philip Langdale <philipl@overt.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

This adds support for the high-speed modes defined by mmc v4
(assuming the host controller is up to it). On a TI sdhci controller,
it improves read speed from 1.3MBps to 2.3MBps. The TI controller can
only go up to 24MHz, but everything helps. Another person has taken
this basic patch and used it on a Nokia 770 to get a bigger boost
because that controller can run at 48MHZ.
Signed-off-by: Philip Langdale <philipl@overt.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

PXA MMC driver supports not only PXA255 but also PXA250 and newer ones
Signed-off-by: Marcin Juszkiewicz <hrw@openembedded.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

This patch is part of Juha Yrjola's and Komal Shah's earlier patch to
make general code cleanups

Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar <at> indt.org.br>
Signed-off-by: Juha Yrjola <juha.yrjola <at> solidboot.com>
Signed-off-by: Komal Shah <komal_shah802003 <at> yahoo.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

This patch is part of Tony Lindgren's earlier patch to add
MMC_CAP_{MULTIWRITE,BYTEBLOCK} flags in omap.c

Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar <at> indt.org.br>
Signed-off-by: Tony Lindgren <tony <at> atomide.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

This patch is part of Juha Yrjola's earlier patch to add platform device
error handling and a BUG_ON to verify if host == NULL

Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar <at> indt.org.br>
Signed-off-by: Juha Yrjola <juha.yrjola <at> solidboot.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

This patch is part of Juha Yrjola's earlier patch to move register
definitions away from the header file and the header file is removed.

Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar <at> indt.org.br>
Signed-off-by: Juha Yrjola <juha.yrjola <at> solidboot.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

This patch is part of Juha Yrjola's earlier patch to change
OMAP_MMC_{READ,WRITE} macros to use the host pointer

Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar <at> indt.org.br>
Signed-off-by: Juha Yrjola <juha.yrjola <at> solidboot.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

This patch is part of Juha Yrjola's earlier patch to replace base
with virt_base and phys_base

Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar <at> indt.org.br>
Signed-off-by: Juha Yrjola <juha.yrjola <at> solidboot.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

Now that mmc_host_ops can be constified, update the various drivers
to constify those method tables and shrink the writable data segment.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

Replace kernel_thread() with kthread_run()/kthread_stop().
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

It's all good.

This changes the type of variable "i" in rtl8169_init_one()
from "unsigned int" to "int". "i" is checked for < 0 later,
which can never happen for "unsigned". This results in broken
error handling.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 3943/1: share declaration of struct pxa2xx_udc_mach_info between multiple platforms
  [ARM] Export smp_call_function()
  [ARM] Add PM_LEGACY defaults

Move declaration of struct pxa2xx_udc_mach_info from
include/asm-arm/arch-pxa/udc.h to new file
include/asm-arm/mach/udc_pxa2xx.h.

This allow us to use this structure with
multiple platforms - pxa and ixp4xx. USB
device controller used in pxa25x is the same
as controller used in ixp4xx.
Signed-off-by: Milan Svoboda <msvoboda@ra.rockwell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Otherwise CPU 0 doesn't show up in sysfs which breaks some software.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [NET]: Fix MAX_HEADER setting.
  [NETFILTER]: ipt_REJECT: fix memory corruption
  [NETFILTER]: conntrack: fix refcount leak when finding expectation
  [NETFILTER]: ctnetlink: fix reference count leak
  [NETFILTER]: nf_conntrack: fix the race on assign helper to new conntrack
  [NETFILTER]: nfctnetlink: assign helper to newly created conntrack

MAX_HEADER is either set to LL_MAX_HEADER or LL_MAX_HEADER + 48, and
this is controlled by a set of CONFIG_* ifdef tests.

It is trying to use LL_MAX_HEADER + 48 when any of the tunnels are
enabled which set hard_header_len like this:

dev->hard_header_len = LL_MAX_HEADER + sizeof(struct xxx);

The correct set of tunnel drivers which do this are:

ipip
ip_gre
ip6_tunnel
sit

so make the ifdef test match.

Noticed by Patrick McHardy and with help from Herbert Xu.
Signed-off-by: David S. Miller <davem@davemloft.net>

On devices with hard_header_len > LL_MAX_HEADER ip_route_me_harder()
reallocates the skb, leading to memory corruption when using the stale
tcph pointer to update the checksum.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

All users of __{ip,nf}_conntrack_expect_find() don't expect that
it increments the reference count of expectation.
Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

When NFA_NEST exceeds the skb size the protocol reference is leaked.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

The found helper cannot be assigned to conntrack after unlocking
nf_conntrack_lock. This tries to find helper to assign again.
Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

This fixes the bug which doesn't assign helper to newly created
conntrack via nf_conntrack_netlink.
Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  [PATCH] libata: Fixup ata_sas_queuecmd to handle __ata_scsi_queuecmd failure
  [PATCH] ahci: AHCI mode SATA patch for Intel ICH9
  [PATCH] libata: don't schedule EH on wcache on/off if old EH

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6:
  selinux: fix dentry_open() error check

* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6:
  [PATCH] x86-64: Use stricter in process stack check for unwinder
  [PATCH] i386: Fix compilation with UP genericarch
  [PATCH] x86-64: Fix warning in io_apic.c
  [PATCH] x86-64: work around gcc4 issue with -Os in Dwarf2 stack unwind
  [PATCH] x86_64: Align data segment to PAGE_SIZE boundary

* 'linus' of master.kernel.org:/pub/scm/linux/kernel/git/perex/alsa:
  [ALSA] version 1.0.13
  [ALSA] snd-emu10k1: Fix capture for one variant.
  [ALSA] Fix hang-up at disconnection of usb-audio
  [ALSA] hda: fix typo for xw4400 PCI sub-ID
  [ALSA] hda: fix sigmatel dell system detection
  [ALSA] Enable stereo line input for TAS codec
  [ALSA] rtctimer: handle RTC interrupts with a tasklet

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  [MIPS] Fix Bonito bootup message.

include/scsi/libsas.h:479: error: field 'smp_req' has incomplete type
include/scsi/libsas.h:480: error: field 'smp_resp' has incomplete type
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

The return value of crypto_alloc_blkcipher() should be checked by IS_ERR().

Cc: Mike Halcrow <mhalcrow@us.ibm.com>
Cc: Phillip Hellewell <phillip@hellewell.homeip.net>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

The return value of create_write_pipe()/create_read_pipe() should be
checked by IS_ERR().
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

When we sleep and wait for a suspended operation to be resumed, go
back and check until it's ready -- don't just continue after the first
time we're woken. This can cause file system corruption.
Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Make sure to properly clamp maxnum to avoid overflow
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Acked-by: Eugene Teo <eteo@redhat.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Even when enabling Bonito IOBC coherence the kernel would actually claim
it was disabling it.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

Previously it would check for alignment only, which could break
if the stack pointer was unaligned. Now explicitely check if the
stack pointer is in the stack page of the current process.

Ported from i386.
Signed-off-by: Andi Kleen <ak@suse.de>