pandora-kernel.git
13 years agoMerge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Mon, 11 Aug 2008 23:46:11 +0000 (16:46 -0700)]
Merge branch 'timers-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  posix-timers: fix posix_timer_event() vs dequeue_signal() race
  posix-timers: do_schedule_next_timer: fix the setting of ->si_overrun

13 years agoMerge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Mon, 11 Aug 2008 23:45:46 +0000 (16:45 -0700)]
Merge branch 'core-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  lockdep: fix debug_lock_alloc
  lockdep: increase MAX_LOCKDEP_KEYS
  generic-ipi: fix stack and rcu interaction bug in smp_call_function_mask()
  lockdep: fix overflow in the hlock shrinkage code
  lockdep: rename map_[acquire|release]() => lock_map_[acquire|release]()
  lockdep: handle chains involving classes defined in modules
  mm: fix mm_take_all_locks() locking order
  lockdep: annotate mm_take_all_locks()
  lockdep: spin_lock_nest_lock()
  lockdep: lock protection locks
  lockdep: map_acquire
  lockdep: shrink held_lock structure
  lockdep: re-annotate scheduler runqueues
  lockdep: lock_set_subclass - reset a held lock's subclass
  lockdep: change scheduler annotation
  debug_locks: set oops_in_progress if we will log messages.
  lockdep: fix combinatorial explosion in lock subgraph traversal

13 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Mon, 11 Aug 2008 23:44:35 +0000 (16:44 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: fix 2.6.27rc1 cannot boot more than 8CPUs
  x86: make "apic" an early_param() on 32-bit, NULL check
  EFI, x86: fix function prototype
  x86, pci-calgary: fix function declaration
  x86: work around gcc 3.4.x bug
  x86: make "apic" an early_param() on 32-bit
  x86, debug: tone down arch/x86/kernel/mpparse.c debugging printk
  x86_64: restore the proper NR_IRQS define so larger systems work.
  x86: Restore proper vector locking during cpu hotplug
  x86: Fix broken VMI in 2.6.27-rc..
  x86: fdiv bug detection fix

13 years agoMerge branch 'core/locking' into core/urgent
Ingo Molnar [Mon, 11 Aug 2008 22:11:49 +0000 (00:11 +0200)]
Merge branch 'core/locking' into core/urgent

13 years agolockdep: fix debug_lock_alloc
Peter Zijlstra [Mon, 11 Aug 2008 20:45:51 +0000 (22:45 +0200)]
lockdep: fix debug_lock_alloc

When we enable DEBUG_LOCK_ALLOC but do not enable PROVE_LOCKING and or
LOCK_STAT, lock_alloc() and lock_release() turn into nops, even though
we should be doing hlock checking (check=1).

This causes a false warning and a lockdep self-disable.

Rectify this.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agox86: fix 2.6.27rc1 cannot boot more than 8CPUs
Yinghai Lu [Mon, 11 Aug 2008 20:36:04 +0000 (13:36 -0700)]
x86: fix 2.6.27rc1 cannot boot more than 8CPUs

Jeff Chua reported that booting a !bigsmp kernel on a 16-way box
hangs silently.

this is a long-standing issue, smp start AP cpu could check the
apic id >=8 etc before trying to start it.

achieve this by moving the def_to_bigsmp check later and skip the
apicid id > 8

[ mingo@elte.hu: clean up the message that is printed. ]

Reported-by: "Jeff Chua" <jeff.chua.linux@gmail.com>
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
 arch/x86/kernel/setup.c   |    6 ------
 arch/x86/kernel/smpboot.c |   10 ++++++++++
 2 files changed, 10 insertions(+), 6 deletions(-)

13 years agomake struct scsi_dh_devlist's static
Adrian Bunk [Mon, 11 Aug 2008 18:59:21 +0000 (11:59 -0700)]
make struct scsi_dh_devlist's static

This patch makes several needlessly global struct scsi_dh_devlist's
static.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge branch 'for-linus' of git://git.o-hand.com/linux-mfd
Linus Torvalds [Mon, 11 Aug 2008 17:44:43 +0000 (10:44 -0700)]
Merge branch 'for-linus' of git://git.o-hand.com/linux-mfd

* 'for-linus' of git://git.o-hand.com/linux-mfd:
  mfd: tc6393 cleanup and update
  mfd: have TMIO drivers and subdevices depend on ARM
  mfd: TMIO MMC driver
  mfd: driver for the TMIO NAND controller
  mfd: t7l66 MMC platform data
  mfd: tc6387 MMC platform data
  mfd: Fix 7l66 and 6387 according to the new mfd-core API
  mfd: Fix tc6393 according to the new tmio.h
  mfd: driver for the TC6387XB TMIO controller.
  mfd: driver for the T7L66XB TMIO SoC
  mfd: TMIO MMC structures and accessors.

13 years agoMerge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6
Linus Torvalds [Mon, 11 Aug 2008 17:44:13 +0000 (10:44 -0700)]
Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6

* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
  hwmon: (lm75) Drop legacy i2c driver
  i2c: correct some size_t printk formats
  i2c: Check for address business before creating clients
  i2c: Let users select algorithm drivers manually again
  i2c: Fix NULL pointer dereference in i2c_new_probed_device
  i2c: Fix oops on bus multiplexer driver loading

13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
Linus Torvalds [Mon, 11 Aug 2008 17:42:43 +0000 (10:42 -0700)]
Merge git://git./linux/kernel/git/wim/linux-2.6-watchdog

* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  [WATCHDOG] pcwd.c - fix open_allowed type.
  [WATCHDOG] fix watchdog/ixp4xx_wdt.c compilation
  [WATCHDOG] fix watchdog/wdt285.c compilation
  [WATCHDOG] fix watchdog/at91rm9200_wdt.c compilation
  [WATCHDOG] fix watchdog/shwdt.c compilation
  [WATCHDOG] fix watchdog/txx9wdt.c compilation
  [WATCHDOG] MAINTAINERS: remove ZF MACHZ WATCHDOG entry
  [WATCHDOG] Fix build with CONFIG_ITCO_VENDOR_SUPPORT=n

13 years agox86: make "apic" an early_param() on 32-bit, NULL check
Rene Herman [Mon, 11 Aug 2008 17:20:17 +0000 (19:20 +0200)]
x86: make "apic" an early_param() on 32-bit, NULL check

Cyrill Gorcunov observed:

> you turned it into early_param so now it's NULL injecting vulnerabled.
> Could you please add checking for NULL str param?

fix that.

Also, change the name of 'str' into 'arg', to make it more apparent
that this is an optional argument that can be NULL, not a string
parameter that is empty when unset.

Reported-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
Linus Torvalds [Mon, 11 Aug 2008 17:40:28 +0000 (10:40 -0700)]
Merge branch 'merge' of git://git./linux/kernel/git/paulus/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  powerpc: Remove include/linux/harrier_defs.h
  powerpc: Do not ignore arch/powerpc/include
  powerpc: Delete completed "ppc removal" task from feature removal file
  powerpc/mm: Fix attribute confusion with htab_bolt_mapping()
  powerpc/pci: Don't keep ISA memory hole resources in the tree
  powerpc: Zero fill the return values of rtas argument buffer
  powerpc/4xx: Update defconfig files for 2.6.27-rc1
  powerpc/44x: Incorrect NOR offset in Warp DTS
  powerpc/44x: Warp DTS changes for board updates
  powerpc/4xx: Cleanup Warp for i2c driver changes.
  powerpc/44x: Adjust warp-nand resource end address

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes...
Linus Torvalds [Mon, 11 Aug 2008 17:38:36 +0000 (10:38 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jbarnes/pci-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  PCI: Limit VPD length for Broadcom 5708S
  PCI PM: Export pci_pme_active to drivers
  PCI: remove duplicate symbol from pci_ids.h
  PCI: check the return value of device_create_bin_file() in pci_create_bus()
  PCI: fully restore MSI state at resume time
  DMA: make dma-coherent.c documentation kdoc-friendly
  PCI: make pci_register_driver() a macro
  PCI: add Broadcom 5708S to VPD length quirk

13 years agoFix race/oops in tty layer after BKL pushdown
Christian Borntraeger [Mon, 11 Aug 2008 08:02:49 +0000 (09:02 +0100)]
Fix race/oops in tty layer after BKL pushdown

While testing our KVM code for s390 (starting and killall kvm in a loop)
I can reproduce the following oops:

  Unable to handle kernel pointer dereference at virtual kernel address 6b6b6b6b6b6b6000 Oops: 0038 [#1] SMP
  Modules linked in: dm_multipath sunrpc qeth_l3 qeth_l2 dm_mod qeth
  ccwgroup CPU: 1 Not tainted 2.6.27-rc1 #54
  Process kuli (pid: 4409, task: 00000000b6aa5940, ksp: 00000000b7343e10)
  Krnl PSW : 0704e00180000000 00000000002e0b8c
  (disassociate_ctty+0x1c0/0x288) R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3
  CC:2 PM:0 EA:3 Krnl GPRS: 0000000000000000 6b6b6b6b6b6b6b6b
  0000000000000001 00000000000003a6 00000000002e0a46 00000000004b4160
  0000000000000001 00000000bbd79758 00000000b7343e58 00000000b8854148
  00000000bd34dea0 00000000b7343c20 0000000000000001 00000000004b6d08
  00000000002e0a46 00000000b7343c20 Krnl Code: 00000000002e0b7e:
  eb9fb0a00004 lmg %r9,%r15,160(%r11) 00000000002e0b84:
  07f4 bcr 15,%r4 00000000002e0b86:
  e31090080004 lg %r1,8(%r9) >00000000002e0b8c:
  d501109cd000 clc 156(2,%r1),0(%r13) 00000000002e0b92:
  a784ff5d brc 8,2e0a4c 00000000002e0b96:
  b9040029 lgr %r2,%r9 00000000002e0b9a:
  c0e5fffff9c3 brasl %r14,2dff20 00000000002e0ba0:
  a7f4ff56 brc 15,2e0a4c Call Trace:
  ([<00000000002e0a46>] disassociate_ctty+0x7a/0x288)
   [<0000000000141fe6>] do_exit+0x212/0x8d4
   [<0000000000142708>] do_group_exit+0x60/0xcc
   [<0000000000150660>] get_signal_to_deliver+0x270/0x3ac
   [<000000000010bfd6>] do_signal+0x8e/0x8dc
   [<0000000000113772>] sysc_sigpending+0xe/0x22
   [<000001ff0000b134>] 0x1ff0000b134
  INFO: lockdep is turned off.
  Last Breaking-Event-Address:
   [<00000000002e0a48>] disassociate_ctty+0x7c/0x288
  Kernel panic - not syncing: Fatal exception: panic_on_oops

It seems that tty was already free in disassocate_ctty when it tries
to dereference tty->driver.

After moving the lock_kernel before the mutex_unlock, I can no longer
reproduce the problem.

[ This is a temporary partial fix for the documented and long standing
  race in disassociate_tty.  This stops most problem cases for now.

  For the next release the -next tree has an initial implementation of
  kref counting for tty structures and this quickfix will be dropped.

                                                              - Alan ]

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by; Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agom68k{,nommu}: Wire up new system calls
Geert Uytterhoeven [Mon, 11 Aug 2008 07:00:30 +0000 (09:00 +0200)]
m68k{,nommu}: Wire up new system calls

Wire up for m68k{,nommu} the system calls that were added in the last merge
window:

 - 4006553b06306b34054529477b06b68a1c66249b ("flag parameters: inotify_init")
 - ed8cae8ba01348bfd83333f4648dd807b04d7f08 ("flag parameters: pipe")
 - 336dd1f70ff62d7dd8655228caed4c5bfc818c56 ("flag parameters: dup2")
 - a0998b50c3f0b8fdd265c63e0032f86ebe377dbf ("flag parameters: epoll_create")
 - 9fe5ad9c8cef9ad5873d8ee55d1cf00d9b607df0 ("flag parameters add-on: remove
 epoll_create size param")
 - b087498eb5605673b0f260a7620d91818cd72304 ("flag parameters: eventfd")
 - 9deb27baedb79759c3ab9435a7d8b841842d56e9 ("flag parameters: signalfd")

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoRevert "fbcon: bgcolor fix"
Linus Torvalds [Mon, 11 Aug 2008 17:29:11 +0000 (10:29 -0700)]
Revert "fbcon: bgcolor fix"

This reverts commit 2d04a4a72d7e1519b4838f24bdd4b5d0f3f426dc, which made
it impossible to make the softcursor use the highlight colors.

Yes, the fourth bit should be "blinking", but since we cannot reasonably
blink in fbcon, highlighting it with a bright background is preferable.

Reported-by: Pavel Machek <pavel@suse.cz>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: Antonino A. Daplas <adaplas@pol.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoEFI, x86: fix function prototype
Randy Dunlap [Thu, 7 Aug 2008 22:12:39 +0000 (15:12 -0700)]
EFI, x86: fix function prototype

Fix function prototype in header file to match source code:

linux-next-20080807/arch/x86/kernel/efi_64.c:100:14: error: symbol 'efi_ioremap' redeclared with different type (originally declared at include2/asm/efi.h:89) - different address spaces

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agox86, pci-calgary: fix function declaration
Randy Dunlap [Thu, 7 Aug 2008 22:14:55 +0000 (15:14 -0700)]
x86, pci-calgary: fix function declaration

Fix function declaration:

 linux-next-20080807/arch/x86/kernel/pci-calgary_64.c:1353:36: warning: non-ANSI function declaration of function 'get_tce_space_from_tar'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Acked-by: Muli Ben-Yehuda <muli@il.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agox86: work around gcc 3.4.x bug
Jeremy Fitzhardinge [Fri, 8 Aug 2008 20:46:07 +0000 (13:46 -0700)]
x86: work around gcc 3.4.x bug

Simon Horman reported that gcc-3.4.x crashes when compiling
pgd_prepopulate_pmd() when PREALLOCATED_PMDS == 0 and CONFIG_DEBUG_INFO
is enabled.

Adding an extra check for PREALLOCATED_PMDS == 0 [which is compiled out
by gcc] seems to avoid the problem.

Reported-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agox86: make "apic" an early_param() on 32-bit
Rene Herman [Mon, 11 Aug 2008 15:45:53 +0000 (17:45 +0200)]
x86: make "apic" an early_param() on 32-bit

On 32-bit, "apic" is a __setup() param meaning it is parsed rather
late in the game. Make it an early_param() for apic_printk() use
by arch/x86/kernel/mpparse.c.

On 64-bit, it already is an early_param().

Signed-off-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agox86, debug: tone down arch/x86/kernel/mpparse.c debugging printk
Rene Herman [Mon, 11 Aug 2008 15:44:57 +0000 (17:44 +0200)]
x86, debug: tone down arch/x86/kernel/mpparse.c debugging printk

commit 11a62a056093a7f25f1595fbd8bd5f93559572b6 turns some formerly
nopped debugging printks in arch/x86/kernel/mppparse.c into regular
ones. The one at the top of smp_scan_config() in particular also
prints on !CONFIG_SMP/CONFIG_X86_LOCAL_APIC kernels and UP machines
without anything resembling MP tables which makes their lowly UP
owners wonder...

Turn the former Dprintk()s into apic_printk()s instead meaning that
their printing is dependent on passing the apic=verbose (or =debug)
command line param.

On 32-bit, "apic" is a __setup() param which isn't early enough
for this code and therefore needs a followup changing it into an
early_param(). On 64-bit, it already is.

Signed-off-by: Rene Herman <rene.herman@gmail.com>
Cc: Andrew Morton <akpm@osdl.org>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agolockdep: increase MAX_LOCKDEP_KEYS
Ingo Molnar [Mon, 11 Aug 2008 10:37:27 +0000 (12:37 +0200)]
lockdep: increase MAX_LOCKDEP_KEYS

certain configs produce:

 [   70.076229] BUG: MAX_LOCKDEP_KEYS too low!
 [   70.080230] turning off the locking correctness validator.

tune them up.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agogeneric-ipi: fix stack and rcu interaction bug in smp_call_function_mask()
Nick Piggin [Mon, 11 Aug 2008 03:49:30 +0000 (13:49 +1000)]
generic-ipi: fix stack and rcu interaction bug in smp_call_function_mask()

* Venki Pallipadi <venkatesh.pallipadi@intel.com> wrote:

> Found a OOPS on a big SMP box during an overnight reboot test with
> upstream git.
>
> Suresh and I looked at the oops and looks like the root cause is in
> generic_smp_call_function_interrupt() and smp_call_function_mask() with
> wait parameter.
>
> The actual oops looked like
>
> [   11.277260] BUG: unable to handle kernel paging request at ffff8802ffffffff
> [   11.277815] IP: [<ffff8802ffffffff>] 0xffff8802ffffffff
> [   11.278155] PGD 202063 PUD 0
> [   11.278576] Oops: 0010 [1] SMP
> [   11.279006] CPU 5
> [   11.279336] Modules linked in:
> [   11.279752] Pid: 0, comm: swapper Not tainted 2.6.27-rc2-00020-g685d87f #290
> [   11.280039] RIP: 0010:[<ffff8802ffffffff>]  [<ffff8802ffffffff>] 0xffff8802ffffffff
> [   11.280692] RSP: 0018:ffff88027f1f7f70  EFLAGS: 00010086
> [   11.280976] RAX: 00000000ffffffff RBX: 0000000000000000 RCX: 0000000000000000
> [   11.281264] RDX: 0000000000004f4e RSI: 0000000000000001 RDI: 0000000000000000
> [   11.281624] RBP: ffff88027f1f7f98 R08: 0000000000000001 R09: ffffffff802509af
> [   11.281925] R10: ffff8800280c2780 R11: 0000000000000000 R12: ffff88027f097d48
> [   11.282214] R13: ffff88027f097d70 R14: 0000000000000005 R15: ffff88027e571000
> [   11.282502] FS:  0000000000000000(0000) GS:ffff88027f1c3340(0000) knlGS:0000000000000000
> [   11.283096] CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
> [   11.283382] CR2: ffff8802ffffffff CR3: 0000000000201000 CR4: 00000000000006e0
> [   11.283760] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [   11.284048] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
> [   11.284337] Process swapper (pid: 0, threadinfo ffff88027f1f2000, task ffff88027f1f0640)
> [   11.284936] Stack:  ffffffff80250963 0000000000000212 0000000000ee8c78 0000000000ee8a66
> [   11.285802]  ffff88027e571550 ffff88027f1f7fa8 ffffffff8021adb5 ffff88027f1f3e40
> [   11.286599]  ffffffff8020bdd6 ffff88027f1f3e40 <EOI>  ffff88027f1f3ef8 0000000000000000
> [   11.287120] Call Trace:
> [   11.287768]  <IRQ>  [<ffffffff80250963>] ? generic_smp_call_function_interrupt+0x61/0x12c
> [   11.288354]  [<ffffffff8021adb5>] smp_call_function_interrupt+0x17/0x27
> [   11.288744]  [<ffffffff8020bdd6>] call_function_interrupt+0x66/0x70
> [   11.289030]  <EOI>  [<ffffffff8024ab3b>] ? clockevents_notify+0x19/0x73
> [   11.289380]  [<ffffffff803b9b75>] ? acpi_idle_enter_simple+0x18b/0x1fa
> [   11.289760]  [<ffffffff803b9b6b>] ? acpi_idle_enter_simple+0x181/0x1fa
> [   11.290051]  [<ffffffff8053aeca>] ? cpuidle_idle_call+0x70/0xa2
> [   11.290338]  [<ffffffff80209f61>] ? cpu_idle+0x5f/0x7d
> [   11.290723]  [<ffffffff8060224a>] ? start_secondary+0x14d/0x152
> [   11.291010]
> [   11.291287]
> [   11.291654] Code:  Bad RIP value.
> [   11.292041] RIP  [<ffff8802ffffffff>] 0xffff8802ffffffff
> [   11.292380]  RSP <ffff88027f1f7f70>
> [   11.292741] CR2: ffff8802ffffffff
> [   11.310951] ---[ end trace 137c54d525305f1c ]---
>
> The problem is with the following sequence of events:
>
> - CPU A calls smp_call_function_mask() for CPU B with wait parameter
> - CPU A sets up the call_function_data on the stack and does an rcu add to
>   call_function_queue
> - CPU A waits until the WAIT flag is cleared
> - CPU B gets the call function interrupt and starts going through the
>   call_function_queue
> - CPU C also gets some other call function interrupt and starts going through
>   the call_function_queue
> - CPU C, which is also going through the call_function_queue, starts referencing
>   CPU A's stack, as that element is still in call_function_queue
> - CPU B finishes the function call that CPU A set up and as there are no other
>   references to it, rcu deletes the call_function_data (which was from CPU A
>   stack)
> - CPU B sees the wait flag and just clears the flag (no call_rcu to free)
> - CPU A which was waiting on the flag continues executing and the stack
>   contents change
>
> - CPU C is still in rcu_read section accessing the CPU A's stack sees
>   inconsistent call_funation_data and can try to execute
>   function with some random pointer, causing stack corruption for A
>   (by clearing the bits in mask field) and oops.

Nice debugging work.

I'd suggest something like the attached (boot tested) patch as the simple
fix for now.

I expect the benefits from the less synchronized, multiple-in-flight-data
global queue will still outweigh the costs of dynamic allocations. But
if worst comes to worst then we just go back to a globally synchronous
one-at-a-time implementation, but that would be pretty sad!

Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agopowerpc: Remove include/linux/harrier_defs.h
Paul Mackerras [Mon, 11 Aug 2008 10:59:59 +0000 (20:59 +1000)]
powerpc: Remove include/linux/harrier_defs.h

It was only used by code in arch/ppc, and arch/ppc is gone, so remove
the unused harrier_defs.h as well.

Signed-off-by: Paul Mackerras <paulus@samba.org>
13 years agolockdep: fix overflow in the hlock shrinkage code
Peter Zijlstra [Mon, 11 Aug 2008 10:34:42 +0000 (12:34 +0200)]
lockdep: fix overflow in the hlock shrinkage code

There is a overflow by 1 case in the new shrunken hlock code.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agox86_64: restore the proper NR_IRQS define so larger systems work.
Eric W. Biederman [Sun, 10 Aug 2008 07:35:50 +0000 (00:35 -0700)]
x86_64: restore the proper NR_IRQS define so larger systems work.

As pointed out and tracked by Yinghai Lu <yhlu.kernel@gmail.com>:

 Dhaval Giani got:
 kernel BUG at arch/x86/kernel/io_apic_64.c:357!
 invalid opcode: 0000 [1] SMP
 CPU 24
 ...

his system (x3950) has 8 ioapic, irq > 256

This was caused by:

       commit 9b7dc567d03d74a1fbae84e88949b6a60d922d82
       Author: Thomas Gleixner <tglx@linutronix.de>
       Date:   Fri May 2 20:10:09 2008 +0200

          x86: unify interrupt vector defines

          The interrupt vector defines are copied 4 times around with minimal
          differences. Move them all into asm-x86/irq_vectors.h

It appears that Thomas did not notice that x86_64 does something
completely different when he merge irq_vectors.h

We can solve this for 2.6.27 by simply reintroducing the old heuristic
for setting NR_IRQS on x86_64 to a usable value, which trivially removes
the regression.

Long term it would be nice to harmonize the handling of ioapic interrupts
of x86_32 and x86_64 so we don't have this kind of confusion.

Dhaval Giani <dhaval@linux.vnet.ibm.com> tested an earlier version of
this patch by YH which confirms simply increasing NR_IRQS fixes the
problem.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Dhaval Giani <dhaval@linux.vnet.ibm.com>
Cc: Mike Travis <travis@sgi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agox86: Restore proper vector locking during cpu hotplug
Eric W. Biederman [Sat, 9 Aug 2008 22:09:02 +0000 (15:09 -0700)]
x86: Restore proper vector locking during cpu hotplug

Having cpu_online_map change during assign_irq_vector can result
in some really nasty and weird things happening.  The one that
bit me last time was accessing non existent per cpu memory for non
existent cpus.

This locking was removed in a sloppy x86_64 and x86_32 merge patch.

Guys can we please try and avoid subtly breaking x86 when we are
merging files together?

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
13 years agolockdep: rename map_[acquire|release]() => lock_map_[acquire|release]()
Ingo Molnar [Mon, 11 Aug 2008 08:30:30 +0000 (10:30 +0200)]
lockdep: rename map_[acquire|release]() => lock_map_[acquire|release]()

the names were too generic:

 drivers/uio/uio.c:87: error: expected identifier or '(' before 'do'
 drivers/uio/uio.c:87: error: expected identifier or '(' before 'while'
 drivers/uio/uio.c:113: error: 'map_release' undeclared here (not in a function)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agolockdep: handle chains involving classes defined in modules
Rabin Vincent [Mon, 11 Aug 2008 07:30:26 +0000 (09:30 +0200)]
lockdep: handle chains involving classes defined in modules

Solve this by marking the classes as unused and not printing information
about the unused classes.

Reported-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Rabin Vincent <rabin@rab.in>
Acked-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agomm: fix mm_take_all_locks() locking order
Peter Zijlstra [Mon, 11 Aug 2008 07:30:25 +0000 (09:30 +0200)]
mm: fix mm_take_all_locks() locking order

Lockdep spotted:

=======================================================
[ INFO: possible circular locking dependency detected ]
2.6.27-rc1 #270
-------------------------------------------------------
qemu-kvm/2033 is trying to acquire lock:
 (&inode->i_data.i_mmap_lock){----}, at: [<ffffffff802996cc>] mm_take_all_locks+0xc2/0xea

but task is already holding lock:
 (&anon_vma->lock){----}, at: [<ffffffff8029967a>] mm_take_all_locks+0x70/0xea

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

-> #1 (&anon_vma->lock){----}:
       [<ffffffff8025cd37>] __lock_acquire+0x11be/0x14d2
       [<ffffffff8025d0a9>] lock_acquire+0x5e/0x7a
       [<ffffffff804c655b>] _spin_lock+0x3b/0x47
       [<ffffffff8029a2ef>] vma_adjust+0x200/0x444
       [<ffffffff8029a662>] split_vma+0x12f/0x146
       [<ffffffff8029bc60>] mprotect_fixup+0x13c/0x536
       [<ffffffff8029c203>] sys_mprotect+0x1a9/0x21e
       [<ffffffff8020c0db>] system_call_fastpath+0x16/0x1b
       [<ffffffffffffffff>] 0xffffffffffffffff

-> #0 (&inode->i_data.i_mmap_lock){----}:
       [<ffffffff8025ca54>] __lock_acquire+0xedb/0x14d2
       [<ffffffff8025d397>] lock_release_non_nested+0x1c2/0x219
       [<ffffffff8025d515>] lock_release+0x127/0x14a
       [<ffffffff804c6403>] _spin_unlock+0x1e/0x50
       [<ffffffff802995d9>] mm_drop_all_locks+0x7f/0xb0
       [<ffffffff802a965d>] do_mmu_notifier_register+0xe2/0x112
       [<ffffffff802a96a8>] mmu_notifier_register+0xe/0x10
       [<ffffffffa0043b6b>] kvm_dev_ioctl+0x11e/0x287 [kvm]
       [<ffffffff802bd0ca>] vfs_ioctl+0x2a/0x78
       [<ffffffff802bd36f>] do_vfs_ioctl+0x257/0x274
       [<ffffffff802bd3e1>] sys_ioctl+0x55/0x78
       [<ffffffff8020c0db>] system_call_fastpath+0x16/0x1b
       [<ffffffffffffffff>] 0xffffffffffffffff

other info that might help us debug this:

5 locks held by qemu-kvm/2033:
 #0:  (&mm->mmap_sem){----}, at: [<ffffffff802a95d0>] do_mmu_notifier_register+0x55/0x112
 #1:  (mm_all_locks_mutex){--..}, at: [<ffffffff8029963e>] mm_take_all_locks+0x34/0xea
 #2:  (&anon_vma->lock){----}, at: [<ffffffff8029967a>] mm_take_all_locks+0x70/0xea
 #3:  (&anon_vma->lock){----}, at: [<ffffffff8029967a>] mm_take_all_locks+0x70/0xea
 #4:  (&anon_vma->lock){----}, at: [<ffffffff8029967a>] mm_take_all_locks+0x70/0xea

stack backtrace:
Pid: 2033, comm: qemu-kvm Not tainted 2.6.27-rc1 #270

Call Trace:
 [<ffffffff8025b7c7>] print_circular_bug_tail+0xb8/0xc3
 [<ffffffff8025ca54>] __lock_acquire+0xedb/0x14d2
 [<ffffffff80259bb1>] ? add_lock_to_list+0x7e/0xad
 [<ffffffff8029967a>] ? mm_take_all_locks+0x70/0xea
 [<ffffffff8029967a>] ? mm_take_all_locks+0x70/0xea
 [<ffffffff8025d397>] lock_release_non_nested+0x1c2/0x219
 [<ffffffff802996cc>] ? mm_take_all_locks+0xc2/0xea
 [<ffffffff802996cc>] ? mm_take_all_locks+0xc2/0xea
 [<ffffffff8025b202>] ? trace_hardirqs_on_caller+0x4d/0x115
 [<ffffffff802995d9>] ? mm_drop_all_locks+0x7f/0xb0
 [<ffffffff8025d515>] lock_release+0x127/0x14a
 [<ffffffff804c6403>] _spin_unlock+0x1e/0x50
 [<ffffffff802995d9>] mm_drop_all_locks+0x7f/0xb0
 [<ffffffff802a965d>] do_mmu_notifier_register+0xe2/0x112
 [<ffffffff802a96a8>] mmu_notifier_register+0xe/0x10
 [<ffffffffa0043b6b>] kvm_dev_ioctl+0x11e/0x287 [kvm]
 [<ffffffff8033f9f2>] ? file_has_perm+0x83/0x8e
 [<ffffffff802bd0ca>] vfs_ioctl+0x2a/0x78
 [<ffffffff802bd36f>] do_vfs_ioctl+0x257/0x274
 [<ffffffff802bd3e1>] sys_ioctl+0x55/0x78
 [<ffffffff8020c0db>] system_call_fastpath+0x16/0x1b

Which the locking hierarchy in mm/rmap.c confirms as valid.

Fix this by first taking all the mapping->i_mmap_lock instances and then
take all anon_vma->lock instances.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agolockdep: annotate mm_take_all_locks()
Peter Zijlstra [Mon, 11 Aug 2008 07:30:25 +0000 (09:30 +0200)]
lockdep: annotate mm_take_all_locks()

The nesting is correct due to holding mmap_sem, use the new annotation
to annotate this.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agolockdep: spin_lock_nest_lock()
Peter Zijlstra [Mon, 11 Aug 2008 07:30:24 +0000 (09:30 +0200)]
lockdep: spin_lock_nest_lock()

Expose the new lock protection lock.

This can be used to annotate places where we take multiple locks of the
same class and avoid deadlocks by always taking another (top-level) lock
first.

NOTE: we're still bound to the MAX_LOCK_DEPTH (48) limit.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agolockdep: lock protection locks
Peter Zijlstra [Mon, 11 Aug 2008 07:30:24 +0000 (09:30 +0200)]
lockdep: lock protection locks

On Fri, 2008-08-01 at 16:26 -0700, Linus Torvalds wrote:

> On Fri, 1 Aug 2008, David Miller wrote:
> >
> > Taking more than a few locks of the same class at once is bad
> > news and it's better to find an alternative method.
>
> It's not always wrong.
>
> If you can guarantee that anybody that takes more than one lock of a
> particular class will always take a single top-level lock _first_, then
> that's all good. You can obviously screw up and take the same lock _twice_
> (which will deadlock), but at least you cannot get into ABBA situations.
>
> So maybe the right thing to do is to just teach lockdep about "lock
> protection locks". That would have solved the multi-queue issues for
> networking too - all the actual network drivers would still have taken
> just their single queue lock, but the one case that needs to take all of
> them would have taken a separate top-level lock first.
>
> Never mind that the multi-queue locks were always taken in the same order:
> it's never wrong to just have some top-level serialization, and anybody
> who needs to take <n> locks might as well do <n+1>, because they sure as
> hell aren't going to be on _any_ fastpaths.
>
> So the simplest solution really sounds like just teaching lockdep about
> that one special case. It's not "nesting" exactly, although it's obviously
> related to it.

Do as Linus suggested. The lock protection lock is called nest_lock.

Note that we still have the MAX_LOCK_DEPTH (48) limit to consider, so anything
that spills that it still up shit creek.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agolockdep: map_acquire
Peter Zijlstra [Mon, 11 Aug 2008 07:30:23 +0000 (09:30 +0200)]
lockdep: map_acquire

Most the free-standing lock_acquire() usages look remarkably similar, sweep
them into a new helper.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agolockdep: shrink held_lock structure
Dave Jones [Mon, 11 Aug 2008 07:30:23 +0000 (09:30 +0200)]
lockdep: shrink held_lock structure

struct held_lock {
        u64                        prev_chain_key;       /*     0     8 */
        struct lock_class *        class;                /*     8     8 */
        long unsigned int          acquire_ip;           /*    16     8 */
        struct lockdep_map *       instance;             /*    24     8 */
        int                        irq_context;          /*    32     4 */
        int                        trylock;              /*    36     4 */
        int                        read;                 /*    40     4 */
        int                        check;                /*    44     4 */
        int                        hardirqs_off;         /*    48     4 */

        /* size: 56, cachelines: 1 */
        /* padding: 4 */
        /* last cacheline: 56 bytes */
};

struct held_lock {
        u64                        prev_chain_key;       /*     0     8 */
        long unsigned int          acquire_ip;           /*     8     8 */
        struct lockdep_map *       instance;             /*    16     8 */
        unsigned int               class_idx:11;         /*    24:21  4 */
        unsigned int               irq_context:2;        /*    24:19  4 */
        unsigned int               trylock:1;            /*    24:18  4 */
        unsigned int               read:2;               /*    24:16  4 */
        unsigned int               check:2;              /*    24:14  4 */
        unsigned int               hardirqs_off:1;       /*    24:13  4 */

        /* size: 32, cachelines: 1 */
        /* padding: 4 */
        /* bit_padding: 13 bits */
        /* last cacheline: 32 bytes */
};

[mingo@elte.hu: shrunk hlock->class too]
[peterz@infradead.org: fixup bit sizes]
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
13 years agolockdep: re-annotate scheduler runqueues
Peter Zijlstra [Mon, 11 Aug 2008 07:30:22 +0000 (09:30 +0200)]
lockdep: re-annotate scheduler runqueues

Instead of using a per-rq lock class, use the regular nesting operations.

However, take extra care with double_lock_balance() as it can release the
already held rq->lock (and therefore change its nesting class).

So what can happen is:

 spin_lock(rq->lock); // this rq subclass 0

 double_lock_balance(rq, other_rq);
   // release rq
   // acquire other_rq->lock subclass 0
   // acquire rq->lock subclass 1

 spin_unlock(other_rq->lock);

leaving you with rq->lock in subclass 1

So a subsequent double_lock_balance() call can try to nest a subclass 1
lock while already holding a subclass 1 lock.

Fix this by introducing double_unlock_balance() which releases the other
rq's lock, but also re-sets the subclass for this rq's lock to 0.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agolockdep: lock_set_subclass - reset a held lock's subclass
Peter Zijlstra [Mon, 11 Aug 2008 07:30:21 +0000 (09:30 +0200)]
lockdep: lock_set_subclass - reset a held lock's subclass

this can be used to reset a held lock's subclass, for arbitrary-depth
iterated data structures such as trees or lists which have per-node
locks.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
13 years agopowerpc: Do not ignore arch/powerpc/include
Junio C Hamano [Fri, 8 Aug 2008 01:45:08 +0000 (18:45 -0700)]
powerpc: Do not ignore arch/powerpc/include

Back when .gitignore file was added to arch/powerpc/ in 06f2138 ([POWERPC]
Add files build to .gitignore, 2006-11-26), there indeed was nothing
tracked in the ignored hierarchy and ignoring everything made sense.  But
we have very many tracked files there these days, and having a higher
level .gitignore that ignores everything is asking for future troubles..

This should have been part of b8b572e (powerpc: Move include files to
arch/powerpc/include/asm, 2008-08-01).

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
13 years agopowerpc: Delete completed "ppc removal" task from feature removal file
Robert P. J. Day [Wed, 6 Aug 2008 17:58:44 +0000 (03:58 +1000)]
powerpc: Delete completed "ppc removal" task from feature removal file

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
13 years agopowerpc/mm: Fix attribute confusion with htab_bolt_mapping()
Benjamin Herrenschmidt [Tue, 5 Aug 2008 06:19:56 +0000 (16:19 +1000)]
powerpc/mm: Fix attribute confusion with htab_bolt_mapping()

The function htab_bolt_mapping() is used to create permanent
mappings in the MMU hash table, for example, in order to create
the linear mapping of vmemmap.  It's also used by early boot
ioremap (before mem_init_done).

However, the way ioremap uses it is incorrect as it passes it the
protection flags in the "linux PTE" form while htab_bolt_mapping()
expects them in the hash table format.  This is made more confusing by
the fact that some of those flags are actually in the same position in
both cases.

This fixes it all by making htab_bolt_mapping() take normal linux
protection flags instead, and use a little helper to convert them to
htab flags. Callers can now use the usual PAGE_* definitions safely.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
 arch/powerpc/include/asm/mmu-hash64.h |    2 -
 arch/powerpc/mm/hash_utils_64.c       |   65 ++++++++++++++++++++--------------
 arch/powerpc/mm/init_64.c             |    9 +---
 3 files changed, 44 insertions(+), 32 deletions(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
13 years agopowerpc/pci: Don't keep ISA memory hole resources in the tree
Benjamin Herrenschmidt [Thu, 31 Jul 2008 05:24:13 +0000 (15:24 +1000)]
powerpc/pci: Don't keep ISA memory hole resources in the tree

When we have an ISA memory hole (ie, a PCI window that allows us to
generate PCI memory cycles at low PCI address) mixed with other
resources using a different CPU <=> PCI mapping, we must not keep
the ISA hole in the bridge resource list.

If we do, things might start trying to allocate device resources
in there and will get the PCI addresses wrong.

This fixes it by arranging to remove the ISA memory hole resource in
this case.  This fixes various cases of PCMCIA breakage on PowerBooks
using the MPC106 "grackle" bridge.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
13 years agopowerpc: Zero fill the return values of rtas argument buffer
Nathan Fontenot [Wed, 30 Jul 2008 16:23:27 +0000 (02:23 +1000)]
powerpc: Zero fill the return values of rtas argument buffer

The kernel copy of the rtas args struct contains the return
value(s) for the specified rtas call.  These are copied back
to user space with the assumption that every value has been
set by the rtas call, which turns out to be not always true.
Thus userspace can see random values and think the call failed
when in fact it succeeded, but for some reason didn't set one
of the return values.

This fixes the problem by zeroing out the return value fields
of the rtas args struct before processing the rtas call.

Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
13 years ago[WATCHDOG] pcwd.c - fix open_allowed type.
Wim Van Sebroeck [Sun, 10 Aug 2008 21:57:03 +0000 (21:57 +0000)]
[WATCHDOG] pcwd.c - fix open_allowed type.

Fix following warnings:
drivers/watchdog/pcwd.c: In function 'pcwd_open':
drivers/watchdog/pcwd.c:703: warning: passing argument 2 of 'test_and_set_bit' from incompatible pointer type
drivers/watchdog/pcwd.c: In function 'pcwd_close':
drivers/watchdog/pcwd.c:723: warning: passing argument 2 of 'clear_bit' from incompatible pointer type

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
13 years agomfd: tc6393 cleanup and update
Ian Molton [Sun, 10 Aug 2008 21:32:07 +0000 (23:32 +0200)]
mfd: tc6393 cleanup and update

This patchset cleans up the TC6393XB support.

* Add provision for the MMC subdevice
* Disable / enable clocks on suspend / resume
* Remove fragments of badly merged code (eg. linux/fb include etc.)
* Use a device specific clock name to break dependancy on ARM/PXA2XX
* Drop unnecessary resource names
* Switch to tmio_io* accessors

Signed-off-by: Ian Molton <spyro@f2s.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
13 years agomfd: have TMIO drivers and subdevices depend on ARM
Samuel Ortiz [Tue, 5 Aug 2008 17:27:58 +0000 (19:27 +0200)]
mfd: have TMIO drivers and subdevices depend on ARM

The TMIO chips are only found (and thus tested) on ARM machines.
Moreover, we don't want the TMIO cells to be built if one of the TMIO
driver is not selected (which indirectly make the TMIO cells drivers
depend on ARM as well).

Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
13 years agomfd: TMIO MMC driver
Ian Molton [Tue, 15 Jul 2008 15:02:21 +0000 (16:02 +0100)]
mfd: TMIO MMC driver

This patch adds support for the MMC subdevice 'cell' commonly found in
TMIO based MFDs.

Signed-off-by: Ian Molton <spyro@f2s.com>
Acked-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
13 years agomfd: driver for the TMIO NAND controller
Ian Molton [Tue, 15 Jul 2008 15:04:22 +0000 (16:04 +0100)]
mfd: driver for the TMIO NAND controller

This patch adds support for the NAND controller commonly found in
TMIO based MFDs.

Signed-off-by: Ian Molton <spyro@f2s.com>
Acked-By: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
13 years agohwmon: (lm75) Drop legacy i2c driver
Jean Delvare [Sun, 10 Aug 2008 20:56:16 +0000 (22:56 +0200)]
hwmon: (lm75) Drop legacy i2c driver

Drop the legacy lm75 driver, and add a detect callback to the
new-style driver to achieve the same functionality.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: David Brownell <david-b@pacbell.net>
13 years agoi2c: correct some size_t printk formats
David Brownell [Sun, 10 Aug 2008 20:56:16 +0000 (22:56 +0200)]
i2c: correct some size_t printk formats

Fix various printk format strings where %zd was passed a size_t;
those should be %zu instead.  (Courtesy of a version of GCC which
warns when these details are wrong.)

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
13 years agoi2c: Check for address business before creating clients
Jean Delvare [Sun, 10 Aug 2008 20:56:16 +0000 (22:56 +0200)]
i2c: Check for address business before creating clients

We check for address business in i2c_probe_address(),
i2c_detect_address() and i2c_new_probed_device(), but this isn't
sufficient. Drivers can call i2c_attach_client() and
i2c_new_device() on any address, so we must check the address there
as well.

This fixes bug #11239:
http://bugzilla.kernel.org/show_bug.cgi?id=11239

Signed-off-by: Jean Delvare <khali@linux-fr.org>
13 years agoi2c: Let users select algorithm drivers manually again
Jean Delvare [Sun, 10 Aug 2008 20:56:15 +0000 (22:56 +0200)]
i2c: Let users select algorithm drivers manually again

In kernel 2.6.26, the ability to select I2C algorithm drivers manually
was removed, as all in-kernel drivers do that automatically. However
there were some complaints that it was a problem for out-of-tree I2C
bus drivers. In order to address these complaints, let's allow manual
selection of these drivers again, but still hide them by default for
better general user experience.

This closes bug #11140:
http://bugzilla.kernel.org/show_bug.cgi?id=11140

Signed-off-by: Jean Delvare <khali@linux-fr.org>
13 years agoi2c: Fix NULL pointer dereference in i2c_new_probed_device
Hans Verkuil [Sun, 10 Aug 2008 20:56:15 +0000 (22:56 +0200)]
i2c: Fix NULL pointer dereference in i2c_new_probed_device

Fix a NULL pointer dereference that happened when calling
i2c_new_probed_device on one of the addresses for which we use byte
reads instead of quick write for detection purpose (that is: 0x30-0x37
and 0x50-0x5f).

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
13 years agoi2c: Fix oops on bus multiplexer driver loading
Jean Delvare [Sun, 10 Aug 2008 20:56:15 +0000 (22:56 +0200)]
i2c: Fix oops on bus multiplexer driver loading

The two I2C bus multiplexer drivers (i2c-amd756-s4882 and
i2c-nforce2-s4985) make use of the bus they want to multiplex before
checking if it is really present. Swap the instructions to test for
presence first. This fixes a oops reported by Ingo Molnar.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Ingo Molnar <mingo@elte.hu>
13 years ago[WATCHDOG] fix watchdog/ixp4xx_wdt.c compilation
Adrian Bunk [Sun, 10 Aug 2008 11:03:41 +0000 (14:03 +0300)]
[WATCHDOG] fix watchdog/ixp4xx_wdt.c compilation

This patch fixes the following compile error caused by
commit 20d35f3e50ea7e573f9568b9fce4e98523aaee5d
([WATCHDOG 22/57] ixp4xx_wdt: unlocked_ioctl):

<--  snip  -->

...
  CC      drivers/watchdog/ixp4xx_wdt.o
ixp4xx_wdt.c:32: error: expected '=', ',', ';', 'asm' or '__attribute__'
ixp4xx_wdt.c: In function 'wdt_enable':
ixp4xx_wdt.c:41: error: 'wdt_lock' undeclared (first use in this
ixp4xx_wdt.c:41: error: (Each undeclared identifier is reported only
ixp4xx_wdt.c:41: error: for each function it appears in.)
ixp4xx_wdt.c: In function 'wdt_disable':
ixp4xx_wdt.c:52: error: 'wdt_lock' undeclared (first use in this
ixp4xx_wdt.c: In function 'ixp4xx_wdt_init':
ixp4xx_wdt.c:186: error: 'wdt_lock' undeclared (first use in this
make[3]: *** [drivers/watchdog/ixp4xx_wdt.o] Error 1

<--  snip  -->

Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
13 years ago[WATCHDOG] fix watchdog/wdt285.c compilation
Adrian Bunk [Fri, 8 Aug 2008 16:03:46 +0000 (19:03 +0300)]
[WATCHDOG] fix watchdog/wdt285.c compilation

This patch fixes the following compile error caused by
commit d0e58eed05f9baf77c4f75e794ae245f6dae240a
([WATCHDOG 55/57] wdt285: switch to unlocked_ioctl and tidy up ...):

<--  snip  -->

...
  CC [M]  drivers/watchdog/wdt285.o
wdt285.c: In function 'footbridge_watchdog_init':
wdt285.c:211: error: 'KERN_WARN' undeclared (first use in this function)
wdt285.c:211: error: (Each undeclared identifier is reported only once
wdt285.c:211: error: for each function it appears in.)
wdt285.c:212: error: expected ')' before string constant
make[3]: *** [drivers/watchdog/wdt285.o] Error 1

<--  snip  -->

Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
13 years ago[WATCHDOG] fix watchdog/at91rm9200_wdt.c compilation
Adrian Bunk [Fri, 8 Aug 2008 15:57:45 +0000 (18:57 +0300)]
[WATCHDOG] fix watchdog/at91rm9200_wdt.c compilation

This patch fixes the following compile error:

<--  snip  -->

...
  CC      drivers/watchdog/at91rm9200_wdt.o
at91rm9200_wdt.c:188: error: 'at91_wdt_ioctl' undeclared here (not in a
make[3]: *** [drivers/watchdog/at91rm9200_wdt.o] Error 1

<--  snip  -->

Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
13 years ago[WATCHDOG] fix watchdog/shwdt.c compilation
Adrian Bunk [Fri, 8 Aug 2008 15:39:11 +0000 (18:39 +0300)]
[WATCHDOG] fix watchdog/shwdt.c compilation

This patch fixes the following compile errors caused by
commit 70b814ec1a484279a51bf9f7193551b996627247
([WATCHDOG 45/57] shwdt: coding style, cleanup, switch to unlocked_io):

<--  snip  -->

...
  CC      drivers/watchdog/shwdt.o
shwdt.c:64: error: 'WTCSR_CKS_4096' undeclared here (not in a function)
shwdt.c: In function 'sh_wdt_start':
shwdt.c:92: error: 'wdt_lock' undeclared (first use in this function)
shwdt.c:92: error: (Each undeclared identifier is reported only once
shwdt.c:92: error: for each function it appears in.)
shwdt.c:97: error: implicit declaration of function 'sh_wdt_read_csr'
shwdt.c:98: error: 'WTCSR_WT' undeclared (first use in this function)
shwdt.c:99: error: implicit declaration of function 'sh_wdt_write_csr'
shwdt.c:101: error: implicit declaration of function 'sh_wdt_write_cnt'
shwdt.c:112: error: 'WTCSR_TME' undeclared (first use in this function)
shwdt.c:113: error: 'WTCSR_RSTS' undeclared (first use in this function)
shwdt.c: In function 'sh_wdt_stop':
shwdt.c:142: error: 'wdt_lock' undeclared (first use in this function)
shwdt.c:147: error: 'WTCSR_TME' undeclared (first use in this function)
shwdt.c: In function 'sh_wdt_keepalive':
shwdt.c:160: error: 'wdt_lock' undeclared (first use in this function)
shwdt.c: In function 'sh_wdt_set_heartbeat':
shwdt.c:176: error: 'wdt_lock' undeclared (first use in this function)
shwdt.c: In function 'sh_wdt_ping':
shwdt.c:192: error: 'wdt_lock' undeclared (first use in this function)
shwdt.c:197: error: 'WTCSR_IOVF' undeclared (first use in this function)
shwdt.c: At top level:
shwdt.c:417: error: conflicting type qualifiers for 'sh_wdt_info'
shwdt.c:71: error: previous declaration of 'sh_wdt_info' was here
make[3]: *** [drivers/watchdog/shwdt.o] Error 1

<--  snip  -->

Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
13 years ago[WATCHDOG] fix watchdog/txx9wdt.c compilation
Adrian Bunk [Fri, 8 Aug 2008 15:18:46 +0000 (18:18 +0300)]
[WATCHDOG] fix watchdog/txx9wdt.c compilation

This patch fixes the following compile error caused by
commit 8dc244f7deac4c0e95ce0ffd26f494bb6e1534c0
([WATCHDOG 48/57] txx9: Fix locking, switch to unlocked_ioctl):

<--  snip  -->

...
  CC      drivers/watchdog/txx9wdt.o
txx9wdt.c:48: warning: type defaults to 'int' in declaration of
txx9wdt.c:48: warning: parameter names (without types) in function
txx9wdt.c: In function 'txx9wdt_ping':
txx9wdt.c:52: error: 'txx9_lock' undeclared (first use in this function)
txx9wdt.c:52: error: (Each undeclared identifier is reported only once
txx9wdt.c:52: error: for each function it appears in.)
txx9wdt.c: In function 'txx9wdt_start':
txx9wdt.c:59: error: 'txx9_lock' undeclared (first use in this function)
txx9wdt.c: In function 'txx9wdt_stop':
txx9wdt.c:71: error: 'txx9_lock' undeclared (first use in this function)
make[3]: *** [drivers/watchdog/txx9wdt.o] Error 1

<--  snip  -->

Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
13 years ago[WATCHDOG] MAINTAINERS: remove ZF MACHZ WATCHDOG entry
Adrian Bunk [Wed, 6 Aug 2008 21:10:52 +0000 (00:10 +0300)]
[WATCHDOG] MAINTAINERS: remove ZF MACHZ WATCHDOG entry

- maintainer has not been active for years
- maintainer email bounces
- URL no longer exists
- covered by the WATCHDOG DEVICE DRIVERS entry

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
13 years ago[WATCHDOG] Fix build with CONFIG_ITCO_VENDOR_SUPPORT=n
Jean Delvare [Fri, 8 Aug 2008 08:29:21 +0000 (10:29 +0200)]
[WATCHDOG] Fix build with CONFIG_ITCO_VENDOR_SUPPORT=n

The problem is that iTCO_vendor_support.ko is still being built while
iTCO_vendor.h claims that its functions do not exist. The following
Makefile update fixes that. It causes iTCO_vendor_support.ko to no
longer be built if CONFIG_ITCO_VENDOR_SUPPORT=n.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
13 years agomfd: t7l66 MMC platform data
Ian Molton [Mon, 4 Aug 2008 16:06:18 +0000 (18:06 +0200)]
mfd: t7l66 MMC platform data

The tmio MMC driver needs the cell to be passed as a platform data.

Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
13 years agomfd: tc6387 MMC platform data
Ian Molton [Mon, 4 Aug 2008 16:58:18 +0000 (18:58 +0200)]
mfd: tc6387 MMC platform data

We need to pass the cell as the platform data.

Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
13 years agomfd: Fix 7l66 and 6387 according to the new mfd-core API
Samuel Ortiz [Thu, 31 Jul 2008 22:16:13 +0000 (00:16 +0200)]
mfd: Fix 7l66 and 6387 according to the new mfd-core API

Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
13 years agomfd: Fix tc6393 according to the new tmio.h
Samuel Ortiz [Thu, 31 Jul 2008 22:11:56 +0000 (00:11 +0200)]
mfd: Fix tc6393 according to the new tmio.h

Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
13 years agomfd: driver for the TC6387XB TMIO controller.
Ian Molton [Tue, 15 Jul 2008 14:12:52 +0000 (15:12 +0100)]
mfd: driver for the TC6387XB TMIO controller.

This patch adds support for the TC6387XB. Unlike other TMIO devices this one
has only one subdevice and no interrupt mux, however using the MFD framework
allows it to share the TMIO MMC driver.

Signed-off-by: Ian Molton <spyro@f2s.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
13 years agomfd: driver for the T7L66XB TMIO SoC
Ian Molton [Tue, 15 Jul 2008 14:09:43 +0000 (15:09 +0100)]
mfd: driver for the T7L66XB TMIO SoC

This patchset provides support for the core functinality of the T7L66XB
SoC from Toshiba. Supported in this patchset is the IRQ MUX, MMC controller
and NAND flash controller.

Signed-off-by: Ian Molton <spyro@f2s.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
13 years agomfd: TMIO MMC structures and accessors.
Ian Molton [Thu, 31 Jul 2008 18:44:28 +0000 (20:44 +0200)]
mfd: TMIO MMC structures and accessors.

Signed-off-by: Ian Molton <spyro@f2s.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg...
Linus Torvalds [Sat, 9 Aug 2008 23:21:33 +0000 (16:21 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/penberg/slab-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6:
  SLUB: dynamic per-cache MIN_PARTIAL
  mm: unexport ksize

13 years agouninline atl1e_setup_mac_ctrl()
Adrian Bunk [Fri, 8 Aug 2008 18:33:34 +0000 (21:33 +0300)]
uninline atl1e_setup_mac_ctrl()

There doesn't seem to be a compelling reason why atl1e_setup_mac_ctrl()
is marked as "inline":

It's not used in any place where speed would matter much, and as long as
it has only one caller non-ancient gcc versions anyway inline it
automatically.

This patch fixes the following compile error with gcc 3.4:

    CC      drivers/net/atl1e/atl1e_main.o
  atl1e_main.c: In function `atl1e_check_link':
  atl1e_main.c:50: sorry, unimplemented: inlining failed in call to
  atl1e_main.c:196: sorry, unimplemented: called from here

Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6
Linus Torvalds [Sat, 9 Aug 2008 17:53:42 +0000 (10:53 -0700)]
Merge git://git./linux/kernel/git/hskinnemoen/avr32-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6:
  avr32: Make atstk1006_nand_data definition static
  avr32: Reduce DataFlash bus speed to 8 MHz on ATNGW100
  avr32: Update defconfigs
  avr32: Clean up HMATRIX code
  avr32: Add MMIO address definitions for certain controllers
  avr32: Introduce <mach/chip.h>
  avr32: Remove include/asm-avr32/arch-at32ap

13 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
Linus Torvalds [Fri, 8 Aug 2008 23:19:49 +0000 (16:19 -0700)]
Merge branch 'fixes' of git://git./linux/kernel/git/davej/cpufreq

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ][2/2] preregister support for powernow-k8
  [CPUFREQ][1/2] whitespace fix for powernow-k8
  [CPUFREQ] Update MAINTAINERS to reflect new mailing list.
  [CPUFREQ] Fix warning in elanfreq
  [CPUFREQ] Fix -Wshadow warning in conservative governor.
  [CPUFREQ] Remove EXPERIMENTAL annotation from VIA C7 powersaver kconfig.

13 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
Linus Torvalds [Fri, 8 Aug 2008 23:18:34 +0000 (16:18 -0700)]
Merge branch 'master' of git://git./linux/kernel/git/sfrench/cifs-2.6

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  [CIFS] list entry can not return null
  turn cifs_setattr into a multiplexor that calls the correct function
  move file time and dos attribute setting logic into new function
  spin off cifs_setattr with unix extensions to its own function
  [CIFS] Code cleanup in old sessionsetup code
  [CIFS] cifs_mkdir and cifs_create should respect the setgid bit on parent dir
  Rename CIFSSMBSetFileTimes to CIFSSMBSetFileInfo and add PID arg
  change CIFSSMBSetTimes to CIFSSMBSetPathInfo
  [CIFS] fix trailing whitespace
  bundle up Unix SET_PATH_INFO args into a struct and change name
  Fix missing braces in cifs_revalidate()
  remove locking around tcpSesAllocCount atomic variable
  [CIFS] properly account for new user= field in SPNEGO upcall string allocation
  [CIFS] remove level of indentation from decode_negTokenInit
  [CIFS] cifs send2 not retrying enough in some cases on full socket
  [CIFS] oid should also be checked against class in cifs asn

13 years agolist.h: fix fatal kernel-doc error
Randy Dunlap [Fri, 8 Aug 2008 20:56:20 +0000 (13:56 -0700)]
list.h: fix fatal kernel-doc error

Fix fatal multi-line kernel-doc error in list.h:
function short description must be on one line.

Error(linux-2.6.27-rc2-git3//include/linux/list.h:318): duplicate section name 'Description'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agox86: Fix broken VMI in 2.6.27-rc..
Alok Kataria [Fri, 8 Aug 2008 19:15:57 +0000 (12:15 -0700)]
x86: Fix broken VMI in 2.6.27-rc..

The lowmem mapping table created by VMI need not depend on max_low_pfn
at all.  Instead we now create an extra large mapping which covers all
possible lowmem instead of the physical ram that is actually available.

This allows the vmi initialization to be done before max_low_pfn could
be computed. We also move the vmi_init code very early in the boot process
so that nobody accidentally breaks the fixmap dependancy.

Signed-off-by: Alok N Kataria <akataria@vmware.com>
Acked-by: Zachary Amsden <zach@vmware.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
13 years ago[CIFS] list entry can not return null
Steve French [Fri, 8 Aug 2008 21:10:16 +0000 (21:10 +0000)]
[CIFS] list entry can not return null

Signed-off-by: Steve French <sfrench@us.ibm.com>
13 years ago[CPUFREQ][2/2] preregister support for powernow-k8
Mark Langsdorf [Thu, 31 Jul 2008 17:39:12 +0000 (12:39 -0500)]
[CPUFREQ][2/2] preregister support for powernow-k8

This patch provides support for the _PSD ACPI object in the Powernow-k8
driver.  Although it looks like an invasive patch, most of it is
simply the consequence of turning the static acpi_performance_data
structure into a pointer.

AMD has tested it on several machines over the past few days without issue.

[trivial checkpatch warnings fixed up by davej]
[X86_POWERNOW_K8_ACPI=n buildfix from Randy Dunlap]

Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com>
Tested-by: Frank Arnold <frank.arnold@amd.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Dave Jones <davej@redhat.com>
13 years ago[CPUFREQ][1/2] whitespace fix for powernow-k8
Mark Langsdorf [Thu, 31 Jul 2008 17:39:05 +0000 (12:39 -0500)]
[CPUFREQ][1/2] whitespace fix for powernow-k8

Trivial whitespace fix for powernow-k8.

Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com>
Signed-off-by: Dave Jones <davej@redhat.com>
13 years ago[CPUFREQ] Update MAINTAINERS to reflect new mailing list.
Dave Jones [Thu, 31 Jul 2008 22:22:59 +0000 (18:22 -0400)]
[CPUFREQ] Update MAINTAINERS to reflect new mailing list.

Mailing list moved to vger.

Signed-off-by: Dave Jones <davej@redhat.com>
13 years ago[CPUFREQ] Fix warning in elanfreq
Dave Jones [Wed, 30 Jul 2008 17:01:42 +0000 (13:01 -0400)]
[CPUFREQ] Fix warning in elanfreq

arch/x86/kernel/cpu/cpufreq/elanfreq.c:47:26: warning: symbol 'elan_multiplier' was not declared. Should it be static?

Yes, yes it should.

Signed-off-by: Dave Jones <davej@redhat.com>
13 years ago[CPUFREQ] Fix -Wshadow warning in conservative governor.
Dave Jones [Wed, 30 Jul 2008 16:59:56 +0000 (12:59 -0400)]
[CPUFREQ] Fix -Wshadow warning in conservative governor.

drivers/cpufreq/cpufreq_conservative.c:336:15: warning: symbol 'freq_step' shadows an earlier one

Just rename the local variable.

Signed-off-by: Dave Jones <davej@redhat.com>
13 years ago[CPUFREQ] Remove EXPERIMENTAL annotation from VIA C7 powersaver kconfig.
Dave Jones [Wed, 30 Jul 2008 16:05:03 +0000 (12:05 -0400)]
[CPUFREQ] Remove EXPERIMENTAL annotation from VIA C7 powersaver kconfig.

This has been pretty solid, and doesn't see much change at all.

Noticed by Harald Welte.

Signed-off-by: Dave Jones <davej@redhat.com>
13 years agoMerge branch 'for-linus-merged' of master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Fri, 8 Aug 2008 18:38:42 +0000 (11:38 -0700)]
Merge branch 'for-linus-merged' of /home/rmk/linux-2.6-arm

* 'for-linus-merged' of master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 5177/1: arm/mach-sa1100/Makefile: remove CONFIG_SA1100_USB
  [ARM] 5166/1: magician: add MAINTAINERS entry
  [ARM] fix pnx4008 build errors
  [ARM] Fix SMP booting with non-zero PHYS_OFFSET
  [ARM] 5185/1: Fix spi num_chipselect for lubbock
  [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach
  [ARM] Add support for arch/arm/mach-*/include and arch/arm/plat-*/include
  [ARM] Remove asm/hardware.h, use asm/arch/hardware.h instead
  [ARM] Eliminate useless includes of asm/mach-types.h
  [ARM] Fix circular include dependency with IRQ headers
  avr32: Use <mach/foo.h> instead of <asm/arch/foo.h>
  avr32: Introduce arch/avr32/mach-*/include/mach
  avr32: Move include/asm-avr32 to arch/avr32/include/asm
  [ARM] sa1100_wdt: use reset_status to remember watchdog reset status
  [ARM] pxa: introduce reset_status and clear_reset_status for driver's usage
  [ARM] pxa: introduce reset.h for reset specific header information

13 years ago[NFSD] uninline nfsd4_op_name()
Adrian Bunk [Fri, 8 Aug 2008 16:26:42 +0000 (19:26 +0300)]
[NFSD] uninline nfsd4_op_name()

There doesn't seem to be a compelling reason why nfsd4_op_name() is
marked as "inline":

It's only used in a dprintk(), and as long as it has only one caller
non-ancient gcc versions anyway inline it automatically.

This patch fixes the following compile error with gcc 3.4:

  ...
    CC      fs/nfsd/nfs4proc.o
  nfs4proc.c: In function `nfsd4_proc_compound':
  nfs4proc.c:854: sorry, unimplemented: inlining failed in call to
  nfs4proc.c:897: sorry, unimplemented: called from here
  make[3]: *** [fs/nfsd/nfs4proc.o] Error 1

Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
[ Also made it "const char *"  - Linus]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge Linus' latest into master
Russell King [Fri, 8 Aug 2008 16:33:47 +0000 (17:33 +0100)]
Merge Linus' latest into master

Conflicts:

drivers/watchdog/at91rm9200_wdt.c
drivers/watchdog/davinci_wdt.c
drivers/watchdog/ep93xx_wdt.c
drivers/watchdog/ixp2000_wdt.c
drivers/watchdog/ixp4xx_wdt.c
drivers/watchdog/ks8695_wdt.c
drivers/watchdog/omap_wdt.c
drivers/watchdog/pnx4008_wdt.c
drivers/watchdog/sa1100_wdt.c
drivers/watchdog/wdt285.c

13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Fri, 8 Aug 2008 18:15:23 +0000 (11:15 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (99 commits)
  pkt_sched: Fix actions referencing
  bnx2x: fix logical op
  tcp: (whitespace only) fix confusing indentation
  pkt_sched: Fix qdisc config when link is down.
  [Bluetooth] Add full quirk implementation for btusb driver
  [Bluetooth] Removal of unnecessary ignore module parameter
  [Bluetooth] Add parameters to control BNEP header compression
  ath9k: Revamp wireless mode usage
  ath9k: More unused macros
  ath9k: Remove a few unused macros and fix indentation
  ath9k: Use mac80211's band macros and remove enum hal_freq_band
  ath9k: Remove redundant data structure ath9k_txq_info
  ath9k: Cleanup data structures related to HW capabilities
  ath9k: work around gcc ICEs
  ath9k: Add new Atheros IEEE 802.11n driver
  ath5k: remove Atheros 11n devices from supported list
  list.h: add list_cut_position()
  list.h: Add list_splice_tail() and list_splice_tail_init()
  p54: swap short slot time dcf values
  rt2x00: Block all unsupported modes
  ...

13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Fri, 8 Aug 2008 18:14:32 +0000 (11:14 -0700)]
Merge git://git./linux/kernel/git/davem/sparc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc64: Fix end-of-stack checking in save_stack_trace().
  sparc: don't use asm/of_device.h
  sparc64: Use kernel/uid16.c helpers instead of own copy.
  of/sparc: remove include of linux/of_platform.h from asm/of_platform.h
  sparc: i8042-sparcio.h: fix warning

13 years agopowerpc: Do not ignore arch/powerpc/include
Junio C Hamano [Fri, 8 Aug 2008 01:45:08 +0000 (18:45 -0700)]
powerpc: Do not ignore arch/powerpc/include

Back when .gitignore file was added to arch/powerpc/ in 06f2138 ([POWERPC]
Add files build to .gitignore, 2006-11-26), there indeed was nothing
tracked in the ignored hierarchy and ignoring everything made sense.  But
we have very many tracked files there these days, and having a higher
level .gitignore that ignores everything is asking for future troubles..

This should have been part of b8b572e (powerpc: Move include files to
arch/powerpc/include/asm, 2008-08-01).

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years ago[ARM] 5177/1: arm/mach-sa1100/Makefile: remove CONFIG_SA1100_USB
Adrian Bunk [Sat, 19 Jul 2008 16:54:22 +0000 (17:54 +0100)]
[ARM] 5177/1: arm/mach-sa1100/Makefile: remove CONFIG_SA1100_USB

This patch removes the commented out line for the not available
CONFIG_SA1100_USB option.

Reported-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years ago[ARM] 5166/1: magician: add MAINTAINERS entry
Philipp Zabel [Wed, 9 Jul 2008 20:27:15 +0000 (21:27 +0100)]
[ARM] 5166/1: magician: add MAINTAINERS entry

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Acked-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years ago[ARM] fix pnx4008 build errors
Russell King [Fri, 8 Aug 2008 14:13:27 +0000 (15:13 +0100)]
[ARM] fix pnx4008 build errors

include/linux/i2c-pnx.h was missed when moving the include files.
Fix it now; it doesn't really need to include mach/i2c.h at all.
Successfully build tested with pnx4008_defconfig, which had
failed in linux-next.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
13 years agoavr32: Make atstk1006_nand_data definition static
Haavard Skinnemoen [Sat, 28 Jun 2008 12:16:31 +0000 (14:16 +0200)]
avr32: Make atstk1006_nand_data definition static

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
13 years agoavr32: Reduce DataFlash bus speed to 8 MHz on ATNGW100
Haavard Skinnemoen [Fri, 1 Aug 2008 15:06:01 +0000 (17:06 +0200)]
avr32: Reduce DataFlash bus speed to 8 MHz on ATNGW100

Doing this in combination with "atmel_spi: fix hang due to missed
interrupt" appears to eliminate the overruns I'm seeing when using
JFFS2-on-DataFlash as /usr filesystem on the ATNGW100.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
13 years agoavr32: Update defconfigs
Haavard Skinnemoen [Tue, 5 Aug 2008 15:07:53 +0000 (17:07 +0200)]
avr32: Update defconfigs

Enable power management, DMA and MMC on all boards except ATSTK1004, and
add defconfig for the new ATSTK1006 board with NAND flash, UBI and UBIFS
enabled as well.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
13 years agoavr32: Clean up HMATRIX code
Haavard Skinnemoen [Thu, 31 Jul 2008 13:56:36 +0000 (15:56 +0200)]
avr32: Clean up HMATRIX code

Introduce a few helper functions for HMATRIX configuration and clean up
the register definitions. Also add definitions for the HMATRIX master
and slave IDs on the AT32AP700x chips.

Also make the definitions in hmatrix.h available to board code by moving
it to <mach/hmatrix.h>

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
13 years agoavr32: Add MMIO address definitions for certain controllers
Haavard Skinnemoen [Thu, 31 Jul 2008 14:06:58 +0000 (16:06 +0200)]
avr32: Add MMIO address definitions for certain controllers

Hardcoded MMIO base addresses are used a few places throughout the
platform code. Move these into the chip-specific header file so that
adding support for new chips becomes a bit easier.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
13 years agoavr32: Introduce <mach/chip.h>
Haavard Skinnemoen [Thu, 5 Jun 2008 11:32:05 +0000 (13:32 +0200)]
avr32: Introduce <mach/chip.h>

This file includes the appropriate chip-specific header with MMIO, IRQ
and GPIO definitions used by the platform code. It may also be used to
provide inline GPIO accessors for drivers that are willing to sacrifice
portability for faster bitbanging.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
13 years agoavr32: Remove include/asm-avr32/arch-at32ap
Haavard Skinnemoen [Tue, 5 Aug 2008 12:50:11 +0000 (14:50 +0200)]
avr32: Remove include/asm-avr32/arch-at32ap

Since all users have been converted over to use <mach/foo.h>, there's no
need for the arch-at32ap directory and associated symlink anymore.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
13 years agosparc64: Fix end-of-stack checking in save_stack_trace().
David S. Miller [Fri, 8 Aug 2008 06:04:37 +0000 (23:04 -0700)]
sparc64: Fix end-of-stack checking in save_stack_trace().

Bug reported by Alexander Beregalov.

Before we dereference the stack frame or try to peek at the
pt_regs magic value, make sure the entire object is within
the kernel stack bounds.

Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agopkt_sched: Fix actions referencing
Jamal Hadi Salim [Fri, 8 Aug 2008 03:37:22 +0000 (20:37 -0700)]
pkt_sched: Fix actions referencing

When an action is added several times with the same exact index
it gets deleted on every even-numbered attempt.
This fixes that issue.

Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agobnx2x: fix logical op
Randy Dunlap [Fri, 8 Aug 2008 03:33:19 +0000 (20:33 -0700)]
bnx2x: fix logical op

Fix dubious logical operation that was found by sparse:
linux-next-20080807/drivers/net/bnx2x_main.c:7205:27: warning: dubious: !x & y

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>