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