We read the SWRST (Software Reset) register to get at the last reset
state, and then we may configure the DOUBLE_FAULT bit to control behavior
when a double fault occurs.  But if the lower bits of the register is
already set (like UART boot mode on a BF54x), we inadvertently make the
system reset by writing to the SYSTEM_RESET field at the same time.  So
make sure the lower 4 bits are always cleared.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

Split out the optional IRQ14 lowering code to further simplify the
asm_do_IRQ() function and keep the ifdef nest under control.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

Take a page from x86 and abstract the stack checking out of the
asm_do_IRQ() function so that the result is easier to digest.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

With the common IRQ code initializing much more of the irq_desc state, we
can't blindly initialize it ourselves to the local bad_irq state.  If we
do, we end up wrongly clobbering many fields.  So punt most of the bad irq
code as the common layers will handle the default state, and simply call
handle_bad_irq() directly when the IRQ we are processing is invalid.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

Update anomaly headers to match latest released anomaly sheets.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

The BF533-EZKIT has two Flash In-System Programming devices hooked up to
the async memory bus, so add resources for the primary flashes and the
SRAMs on the devices.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

The common DSA code changed structure layout, so update the BF518F-EZBRD
resources accordingly.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

The kgdb (in multiple places) and traps code developed pretty much
identical checks for how to access different regions of the Blackfin
memory map, but each wasn't 100%, so unify them to avoid duplication,
bitrot, and bugs with edge cases.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

* git://git.infradead.org/mtd-2.6: (63 commits)
  mtd: OneNAND: Allow setting of boundary information when built as module
  jffs2: leaking jffs2_summary in function jffs2_scan_medium
  mtd: nand: Fix memory leak on txx9ndfmc probe failure.
  mtd: orion_nand: use burst reads with double word accesses
  mtd/nand: s3c6400 support for s3c2410 driver
  [MTD] [NAND] S3C2410: Use DIV_ROUND_UP
  [MTD] [NAND] S3C2410: Deal with unaligned lengths in S3C2440 buffer read/write
  [MTD] [NAND] S3C2410: Allow the machine code to get the BBT table from NAND
  [MTD] [NAND] S3C2410: Added a kerneldoc for s3c2410_nand_set
  mtd: physmap_of: Add multiple regions and concatenation support
  mtd: nand: max_retries off by one in mxc_nand
  mtd: nand: s3c2410_nand_setrate(): use correct macros for 2412/2440
  mtd: onenand: add bbt_wait & unlock_all as replaceable for some platform
  mtd: Flex-OneNAND support
  mtd: nand: add OMAP2/OMAP3 NAND driver
  mtd: maps: Blackfin async: fix memory leaks in probe/remove funcs
  mtd: uclinux: mark local stuff static
  mtd: uclinux: do not allow to be built as a module
  mtd: uclinux: allow systems to override map addr/size
  mtd: blackfin NFC: fix hang when using NAND on BF527-EZKITs
  ...

* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (49 commits)
  [ARM] idle: clean up pm_idle calling, obey hlt_counter
  [ARM] S3C: Fix gpio-config off-by-one bug
  [ARM] S3C64XX: add to_irq() support for EINT() GPIO
  [ARM] S3C64XX: clock.c: fix typo in usb-host clock ctrlbit
  [ARM] S3C64XX: fix HCLK gate defines
  [ARM] Update mach-types
  [ARM] wire up rt_tgsigqueueinfo and perf_counter_open
  OMAP2 clock/powerdomain: off by 1 error in loop timeout comparisons
  OMAP3 SDRC: set FIXEDDELAY when disabling SDRC DLL
  OMAP3: Add support for DPLL3 divisor values higher than 2
  OMAP3 SRAM: convert SRAM code to use macros rather than magic numbers
  OMAP3 SRAM: add more comments on the SRAM code
  OMAP3 clock/SDRC: program SDRC_MR register during SDRC clock change
  OMAP3 clock: add a short delay when lowering CORE clk rate
  OMAP3 clock: initialize SDRC timings at kernel start
  OMAP3 clock: remove wait for DPLL3 M2 clock to stabilize
  [ARM] Add old Feroceon support to compressed/head.S
  [ARM] 5559/1: Limit the stack unwinding caused by a kthread exit
  [ARM] 5558/1: Add extra checks to ARM unwinder to avoid tracing corrupt stacks
  [ARM] 5557/1: Discard some ARM.ex*.*exit.text sections when !HOTPLUG or !HOTPLUG_CPU
  ...

pm_idle is used by infrastructure (eg, cpuidle) which expects architectures
to call it in a certain way.  Arrange for ARM to follow x86's lead on this
and call pm_idle() with interrupts already disabled.  However, we expect
pm_idle() to enable interrupts before it returns.

Also, OMAP wants to be able to disable hlt-ing, so allow hlt_counter to
prevent all calls to pm_idle.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Fix the MN10300 vmlinux ldscript.  It needs to use various macros from
asm-generic/vmlinux.lds.h to correctly include all that it needs to.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

In asm-generic/vmlinux.lds.h, name INIT_RAM_FS consistently, no matter the
setting of CONFIG_BLK_DEV_INITRD.  This corrects:

	commit ef53dae8
	Author: Sam Ravnborg <sam@ravnborg.org>
	Date:   Sun Jun 7 20:46:37 2009 +0200
	Subject: Improve vmlinux.lds.h support for arch specific linker scripts
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

* 'for-2.6.31' of git://fieldses.org/git/linux-nfsd: (60 commits)
  SUNRPC: Fix the TCP server's send buffer accounting
  nfsd41: Backchannel: minorversion support for the back channel
  nfsd41: Backchannel: cleanup nfs4.0 callback encode routines
  nfsd41: Remove ip address collision detection case
  nfsd: optimise the starting of zero threads when none are running.
  nfsd: don't take nfsd_mutex twice when setting number of threads.
  nfsd41: sanity check client drc maxreqs
  nfsd41: move channel attributes from nfsd4_session to a nfsd4_channel_attr struct
  NFS: kill off complicated macro 'PROC'
  sunrpc: potential memory leak in function rdma_read_xdr
  nfsd: minor nfsd_vfs_write cleanup
  nfsd: Pull write-gathering code out of nfsd_vfs_write
  nfsd: track last inode only in use_wgather case
  sunrpc: align cache_clean work's timer
  nfsd: Use write gathering only with NFSv2
  NFSv4: kill off complicated macro 'PROC'
  NFSv4: do exact check about attribute specified
  knfsd: remove unreported filehandle stats counters
  knfsd: fix reply cache memory corruption
  knfsd: reply cache cleanups
  ...

* 'for-2.6.31' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (128 commits)
  nfs41: sunrpc: xprt_alloc_bc_request() should not use spin_lock_bh()
  nfs41: Move initialization of nfs4_opendata seq_res to nfs4_init_opendata_res
  nfs: remove unnecessary NFS_INO_INVALID_ACL checks
  NFS: More "sloppy" parsing problems
  NFS: Invalid mount option values should always fail, even with "sloppy"
  NFS: Remove unused XDR decoder functions
  NFS: Update MNT and MNT3 reply decoding functions
  NFS: add XDR decoder for mountd version 3 auth-flavor lists
  NFS: add new file handle decoders to in-kernel mountd client
  NFS: Add separate mountd status code decoders for each mountd version
  NFS: remove unused function in fs/nfs/mount_clnt.c
  NFS: Use xdr_stream-based XDR encoder for MNT's dirpath argument
  NFS: Clean up MNT program definitions
  lockd: Don't bother with RPC ping for NSM upcalls
  lockd: Update NSM state from SM_MON replies
  NFS: Fix false error return from nfs_callback_up() if ipv6.ko is not available
  NFS: Return error code from nfs_callback_up() to user space
  NFS: Do not display the setting of the "intr" mount option
  NFS: add support for splice writes
  nfs41: Backchannel: CB_SEQUENCE validation
  ...

* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (22 commits)
  [S390] Update default configuration.
  [S390] kprobes: defer setting of ctlblk state
  [S390] Enable tick based perf_counter on s390.
  [S390] dasd: fix refcounting in dasd_change_state
  [S390] lockless idle time accounting
  [S390] driver_data access
  [S390] pm: fix build error for !SMP
  [S390] dasd_pm: fix stop flag handling
  [S390] ap/zcrypt: Suspend/Resume ap bus and zcrypt
  [S390] qdio: Sanitize do_QDIO sanity checks
  [S390] qdio: leave inbound SBALs primed
  [S390] qdio: merge AI tasklet into interrupt handler
  [S390] qdio: extract all primed SBALs at once
  [S390] qdio: fix check for running under z/VM
  [S390] qdio: move adapter interrupt tasklet code
  [S390] Use del_timer instead of del_timer_sync
  [S390] s390: remove DEBUG_MALLOC
  [S390] vt220 console: convert from bootmem to slab
  [S390] sclp console: convert from bootmem to slab
  [S390] 3270 console: convert from bootmem to slab
  ...

* 'next-i2c' of git://aeryn.fluff.org.uk/bjdooks/linux:
  i2c: Fix stuck transaction on cpm-i2c driver
  i2c-omap: Fix build breaking typo cpu_is_omap_2430

* git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6:
  xtensa: enable m41t80 driver in s6105_defconfig
  xtensa: add m41t62 rtc to s6105 platform
  xtensa: enable s6gmac in s6105_defconfig
  xtensa: s6105 specific configuration for s6gmac
  s6gmac: xtensa s6000 on-chip ethernet driver
  xtensa: support s6000 gpio irqs and alternate function selection
  xtensa: s6000 dma engine support
  xtensa: allow variant to initialize own irq chips
  xtensa: cache inquiry and unaligned cache handling functions

* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (74 commits)
  PCI: make msi_free_irqs() to use msix_mask_irq() instead of open coded write
  PCI: Fix the NIU MSI-X problem in a better way
  PCI ASPM: remove get_root_port_link
  PCI ASPM: cleanup pcie_aspm_sanity_check
  PCI ASPM: remove has_switch field
  PCI ASPM: cleanup calc_Lx_latency
  PCI ASPM: cleanup pcie_aspm_get_cap_device
  PCI ASPM: cleanup clkpm checks
  PCI ASPM: cleanup __pcie_aspm_check_state_one
  PCI ASPM: cleanup initialization
  PCI ASPM: cleanup change input argument of aspm functions
  PCI ASPM: cleanup misc in struct pcie_link_state
  PCI ASPM: cleanup clkpm state in struct pcie_link_state
  PCI ASPM: cleanup latency field in struct pcie_link_state
  PCI ASPM: cleanup aspm state field in struct pcie_link_state
  PCI ASPM: fix typo in struct pcie_link_state
  PCI: drivers/pci/slot.c should depend on CONFIG_SYSFS
  PCI: remove redundant __msi_set_enable()
  PCI PM: consistently use type bool for wake enable variable
  x86/ACPI: Correct maximum allowed _CRS returned resources and warn if exceeded
  ...

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (43 commits)
  via-velocity: Fix velocity driver unmapping incorrect size.
  mlx4_en: Remove redundant refill code on RX
  mlx4_en: Removed redundant check on lso header size
  mlx4_en: Cancel port_up check in transmit function
  mlx4_en: using stop/start_all_queues
  mlx4_en: Removed redundant skb->len check
  mlx4_en: Counting all the dropped packets on the TX side
  usbnet cdc_subset: fix issues talking to PXA gadgets
  Net: qla3xxx, remove sleeping in atomic
  ipv4: fix NULL pointer + success return in route lookup path
  isdn: clean up documentation index
  cfg80211: validate station settings
  cfg80211: allow setting station parameters in mesh
  cfg80211: allow adding/deleting stations on mesh
  ath5k: fix beacon_int handling
  MAINTAINERS: Fix Atheros pattern paths
  ath9k: restore PS mode, before we put the chip into FULL SLEEP state.
  ath9k: wait for beacon frame along with CAB
  acer-wmi: fix rfkill conversion
  ath5k: avoid PCI FATAL interrupts by restoring RETRY_TIMEOUT disabling
  ...

I happened to find that fs/minix/minix.h doesn't guard double include.

Yes, I know this never cause something destructive because this is
self-evidence that no source file includes minix.h twice, but I think
fixing this is better than disregarding it.
Signed-off-by: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

The tty layer is now a bit more fussy about reporting the right baud rate
back. Make the msm driver match the current state of affairs.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Signed-off-by: Brian Swetland <swetland@google.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Hardware updated to support TX FIFO empty.
Signed-off-by: Richard Röjfors <richard.rojfors.ext@mocean-labs.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Add flush_buffer tty callback to flush rx buffers.
Add TCFLSH ioctl processing to flush tx buffers.
Increase default tx buffers from 1 to 3.
Remove unneeded flush_buffer call in open callback.
Remove vendor specific CVS version string.
Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Mark the remove function as __devexit so it gets eliminated in
CONFIG_HOTPLUG=n builds.  Saves ~100 bytes.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Add the wakeup enable register to the list of OMAP-specific UART
registers.  This is to support forthcoming OMAP PM enhancements which
use the wakeup feature of the OMAP's 8250-based UART.
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Remove the replicated urban legends from the comments and fix a couple of
other silly calls
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

The ppp layer goes around calling the unthrottle method from non sleeping
paths. This isn't safe because the unthrottle methods in the tty layer need
to be able to sleep (consider a USB dongle).

Until now this didn't show up because the ppp layer never actually throttled
a port so the unthrottle was always a no-op. Currently it's a mutex taking
path so warnings are spewed if the unthrottle occurs via certain paths.

Fix this by removing the unneccessary unthrottle calls.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Don't return from switch/case directly in vt_ioctl. Set ret and break
instead so that we unlock BKL.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Don't return from switch/case, break instead, so that we unlock BKL.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

There is omitted BKunL in r3964_read.

Centralize the paths to one point with one unlock.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

In zs_console_putchar() occurs:

	if (zs_transmit_drain(zport, irq))
		write_zsdata(zport, ch);

However if in zs_transmit_drain() no empty Tx Buffer occurs, limit reaches
-1 => true, and the write still occurs.

This patch changes postfix to prefix decrements in this and similar
functions to prevent similar mistakes in the future.  This decreases the
iterations with one but the chosen loop count was arbitrary anyway.

In sunhv limit reaches -1, not 0, so the test is off by one.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Since early printk only makes sense/works when the serial driver is built
into the kernel, disable the option for this driver when it is going to be
built as a module.  Otherwise we get build failures due to the ifdef
handling.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

The Blackfin serial driver never initialized the spin_lock that is part of
the serial core structure, but we never noticed because spin_lock's are
rarely enabled on UP systems.  Yeah lockdep and friends.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

The original patch garned some feedback and a v2 was posted, but that
version seems to have been missed when merging the driver.

At any rate, this cleans up the printk usage as suggested by Jiri Slaby.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parport_pc_probe_port() creates the own 'parport_pc' device if the
device argument is NULL. Then parport_pc_probe_port() doesn't
initialize the dma_mask and coherent_dma_mask of the device and calls
dma_alloc_coherent with it. dma_alloc_coherent fails because
dma_alloc_coherent() doesn't accept the uninitialized dma_mask:

http://lkml.org/lkml/2009/6/16/150

Long ago, X86_32 and X86_64 had the own dma_alloc_coherent
implementations; X86_32 accepted a device having dma_mask that is not
initialized however X86_64 didn't. When we merged them, we chose to
prohibit a device having dma_mask that is not initialized. I think
that it's good to require drivers to set up dma_mask (and
coherent_dma_mask) properly if the drivers want DMA.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Reported-by: Malcom Blaney <malcolm.blaney@maptek.com.au>
Tested-by: Malcom Blaney <malcolm.blaney@maptek.com.au>
Cc: stable@kernel.org
Signed-off-by: Alan Cox <alan@linux.intel.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

CONFIG_PARPORT_PC_SUPERIO probes for various superio chips by writing
byte sequences to a set of different potential I/O ranges.  But the
probed ranges are not exclusive to parallel ports.  Some of our boards
just happen to have a watchdog in one of them.  Took us almost a week
to figure out why some distros reboot without warning after running
flawlessly for 3 hours.  For exactly 170 = 0xAA minutes, that is ...

Fixed by restoring original values after probing.  Also fixed too small
request_region() in detect_and_report_it87().
Signed-off-by: Jens Rottmann <JRottmann@LiPPERTEmbedded.de>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: <stable@kernel.org>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

This reverts commit a90b0375, which
already got fixed as commit f0e85277:
the same patch (trivial differences) got applied twice.
Requested-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>