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15 years agoftrace: fix current_tracer error return
Steven Rostedt [Tue, 28 Oct 2008 14:44:24 +0000 (10:44 -0400)]
ftrace: fix current_tracer error return

The commit (in linux-tip) c2931e05ec5965597cbfb79ad332d4a29aeceb23
 ( ftrace: return an error when setting a nonexistent tracer )
added useful code that would error when a bad tracer was written into
the current_tracer file.

But this had a bug if the amount written was more than the amount read by
that code. The first iteration would set the tracer correctly, but since
it did not consume the rest of what was written (usually whitespace), the
userspace utility would continue to write what was not consumed. This
second iteration would fail to find a tracer and return -EINVAL. Funny
thing is that the tracer would have already been set.

This patch just consumes all the data that is written to the file.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agoALSA: hda: Add HDA vendor ID for Wolfson Microelectronics
Mark Brown [Tue, 28 Oct 2008 14:50:13 +0000 (14:50 +0000)]
ALSA: hda: Add HDA vendor ID for Wolfson Microelectronics

Add Wolfson Microelectronics to the HDA vendor ID table.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agopowerpc: enable heap randomization for linkstations
Rogério Brito [Mon, 13 Oct 2008 04:51:17 +0000 (01:51 -0300)]
powerpc: enable heap randomization for linkstations

The current defconfig for Linkstation/Kuroboxes has the "Disable Heap
Randomization" option enabled.

Since some of these machines are facing the internet, it helps to have
heap randomization enabled. This patch enables it.

Signed-off-by: Rogério Brito <rbrito@ime.usp.br>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
15 years agopowerpc: compile kernel for linkstations optimized for size
Rogério Brito [Mon, 13 Oct 2008 04:07:03 +0000 (01:07 -0300)]
powerpc: compile kernel for linkstations optimized for size

Since Linkstations and Kuroboxes often have *very* little memory (as
they are embedded systems), it is desirable to get their kernels
compiled optimized for size.

Signed-off-by: Rogério Brito <rbrito@ime.usp.br>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
15 years agopowerpc: fix i2c on PPC linkstation / kurobox machines
Guennadi Liakhovetski [Thu, 23 Oct 2008 23:05:56 +0000 (01:05 +0200)]
powerpc: fix i2c on PPC linkstation / kurobox machines

The i2c bus defn is broken on linkstation / kurobox machines since at
least 2.6.27. Fix it. Also remove CONFIG_SERIAL_OF_PLATFORM, which, if
enabled, breaks the serial console after the
"console handover: boot [udbg0] -> real [ttyS1]" message.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
15 years agoALSA: hda - Add another HP model for AD1884A
Takashi Iwai [Tue, 28 Oct 2008 14:39:26 +0000 (15:39 +0100)]
ALSA: hda - Add another HP model for AD1884A

Added a quirk entry for another HP mobile device with AD1884A codec.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agopowerpc/40x: Don't enable HCU4 board by default
Josh Boyer [Fri, 24 Oct 2008 04:31:58 +0000 (04:31 +0000)]
powerpc/40x: Don't enable HCU4 board by default

Fix the HCU4 Kconfig option to 'default n'.  We don't want the
board to always be enabled for other board defconfigs.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
15 years agoKVM: ia64: Makefile fix for forcing to re-generate asm-offsets.h
Xiantao Zhang [Thu, 23 Oct 2008 02:37:06 +0000 (10:37 +0800)]
KVM: ia64: Makefile fix for forcing to re-generate asm-offsets.h

To avoid using stale asm-offsets.h.

Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
15 years agoKVM: Future-proof device assignment ABI
Avi Kivity [Sun, 19 Oct 2008 14:39:45 +0000 (16:39 +0200)]
KVM: Future-proof device assignment ABI

Reserve some space so we can add more data.

Signed-off-by: Avi Kivity <avi@qumranet.com>
15 years agoKVM: ia64: Fix halt emulation logic
Xiantao Zhang [Thu, 16 Oct 2008 07:58:15 +0000 (15:58 +0800)]
KVM: ia64: Fix halt emulation logic

Common halt logic was changed by x86 and did not update ia64.  This patch
updates halt for ia64.

Fixes a regression causing guests to hang with more than 2 vcpus.

Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
15 years agoKVM: Fix guest shared interrupt with in-kernel irqchip
Sheng Yang [Wed, 15 Oct 2008 12:15:06 +0000 (20:15 +0800)]
KVM: Fix guest shared interrupt with in-kernel irqchip

Every call of kvm_set_irq() should offer an irq_source_id, which is
allocated by kvm_request_irq_source_id(). Based on irq_source_id, we
identify the irq source and implement logical OR for shared level
interrupts.

The allocated irq_source_id can be freed by kvm_free_irq_source_id().

Currently, we support at most sizeof(unsigned long) different irq sources.

[Amit: - rebase to kvm.git HEAD
       - move definition of KVM_USERSPACE_IRQ_SOURCE_ID to common file
       - move kvm_request_irq_source_id to the update_irq ioctl]

[Xiantao: - Add kvm/ia64 stuff and make it work for kvm/ia64 guests]

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
15 years agoKVM: MMU: sync root on paravirt TLB flush
Marcelo Tosatti [Wed, 15 Oct 2008 09:45:08 +0000 (07:45 -0200)]
KVM: MMU: sync root on paravirt TLB flush

The pvmmu TLB flush handler should request a root sync, similarly to
a native read-write CR3.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
15 years agosh: Kill off long-dead HD64465 cchip support.
Paul Mundt [Tue, 28 Oct 2008 11:07:44 +0000 (20:07 +0900)]
sh: Kill off long-dead HD64465 cchip support.

This code has been dead for many years. The last update it received
was in 2003 in order to update it for the driver model changes, though
it had already been in disarray and unused before that point. The only
boards that ever used this chip have not had users in many years either,
so it is finally safe to just kill it off and move on with life.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Revert "SH 7366 needs SCIF_ONLY"
Paul Mundt [Tue, 28 Oct 2008 10:45:47 +0000 (19:45 +0900)]
sh: Revert "SH 7366 needs SCIF_ONLY"

This reverts commit 5ca8c4852fcbbc8a8497c4ee8b2a0a7466f3524c.

With the killing off of SCIF_ONLY and its spawn in sh-sci, we no longer
require this change, so just revert it.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agoMerge branches 'sh/serial-rework' and 'sh/oprofile'
Paul Mundt [Tue, 28 Oct 2008 10:44:15 +0000 (19:44 +0900)]
Merge branches 'sh/serial-rework' and 'sh/oprofile'

15 years agosh: Simplify and lock down the ISA tuning.
Paul Mundt [Tue, 28 Oct 2008 10:37:05 +0000 (19:37 +0900)]
sh: Simplify and lock down the ISA tuning.

The ISA tuning as it is today can not cope with all of the different
variations that are possible, so all we can do is a best attempt based on
the CPU family. The DSP and FPU generation are already at odds with each
other, and the nommu tuning we weren't handling at all.  Additionally,
for platforms that never had an FPU, the -nofpu variant never existed,
meaning that we would lose out on family granular tuning completely in
certain cases.

With tat out of the way, we were also using -up versions, allowing for
later instructions that branched off of a particular subset of the ISA,
but are not actually reflected on the hardware being targetted. This
leads to some confusion, and the possibility of bogus instructions on
older parts. Kill that off and lock it down to the family being built
for specifically.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agolockdep: fix irqs on/off ip tracing
Heiko Carstens [Tue, 28 Oct 2008 10:14:58 +0000 (11:14 +0100)]
lockdep: fix irqs on/off ip tracing

Impact: fix lockdep lock-api-caller output when irqsoff tracing is enabled

81d68a96 "ftrace: trace irq disabled critical timings" added wrappers around
trace_hardirqs_on/off_caller. However these functions use
__builtin_return_address(0) to figure out which function actually disabled
or enabled irqs. The result is that we save the ips of trace_hardirqs_on/off
instead of the real caller. Not very helpful.

However since the patch from Steven the ip already gets passed. So use that
and get rid of __builtin_return_address(0) in these two functions.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years ago[S390] s390: Fix build for !CONFIG_S390_GUEST + CONFIG_VIRTIO_CONSOLE
Christian Borntraeger [Tue, 28 Oct 2008 10:10:22 +0000 (11:10 +0100)]
[S390] s390: Fix build for !CONFIG_S390_GUEST + CONFIG_VIRTIO_CONSOLE

The s390 kernel does not compile if virtio console is enabled, but guest
support is disabled:

  LD      .tmp_vmlinux1
arch/s390/kernel/built-in.o: In function `setup_arch':
/space/linux-2.5/arch/s390/kernel/setup.c:773: undefined reference to
`s390_virtio_console_init'

The fix is related to
commit 99e65c92f2bbf84f43766a8bf701e36817d62822
Author: Christian Borntraeger <borntraeger@de.ibm.com>
Date:   Fri Jul 25 15:50:04 2008 +0200
    KVM: s390: Fix guest kconfig

Which changed the build process to build kvm_virtio.c only if CONFIG_S390_GUEST
is set. We must ifdef the prototype in the header file accordingly.

Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
15 years ago[S390] No more 4kb stacks.
Heiko Carstens [Tue, 28 Oct 2008 10:10:21 +0000 (11:10 +0100)]
[S390] No more 4kb stacks.

We got a stack overflow with a small stack configuration on a 32 bit
system. It just looks like as 4kb isn't enough and too dangerous.
So lets get rid of 4kb stacks on 32 bit.

But one thing I completely dislike about the call trace below is that
just for debugging or tracing purposes sprintf gets called (cio_start_key):

/* process condition code */
sprintf(dbf_txt, "ccode:%d", ccode);
CIO_TRACE_EVENT(4, dbf_txt);

But maybe its just me who thinks that this could be done better.

    <4>Kernel stack overflow.
    <4>Modules linked in: dm_multipath sunrpc bonding qeth_l2 dm_mod qeth ccwgroup vmur
    <4>CPU: 1 Not tainted 2.6.27-30.x.20081015-s390default #1
    <4>Process httpd (pid: 3807, task: 20ae2df8, ksp: 1666fb78)
    <4>Krnl PSW : 040c0000 8027098a (number+0xe/0x348)
    <4>           R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:0 CC:0 PM:0
    <4>Krnl GPRS: 00d43318 0027097c 1666f277 9666f270
    <4>           00000000 00000000 0000000a ffffffff
    <4>           9666f270 1666f228 1666f277 1666f098
    <4>           00000002 80270982 80271016 1666f098
    <4>Krnl Code: 8027097ef0340dd0a7f1 srp 3536(4,%r0),2033(%r10),4
    <4>           80270984: 0f00 clcl %r0,%r0
    <4>           80270986a7840001 brc 8,80270988
    <4>          >8027098a: 18ef lr %r14,%r15
    <4>           8027098ca7faff68 ahi %r15,-152
    <4>           80270990: 18bf lr %r11,%r15
    <4>           80270992: 18a2 lr %r10,%r2
    <4>           80270994: 1893 lr %r9,%r3

Modified calltrace with annotated stackframe size of each function:

stackframe size
    |
 0 304 vsnprintf+850 [0x271016]
 1  72 sprintf+74 [0x271522]
 2  56 cio_start_key+262 [0x2d4c16]
 3  56 ccw_device_start_key+222 [0x2dfe92]
 4  56 ccw_device_start+40 [0x2dff28]
 5  48 raw3215_start_io+104 [0x30b0f8]
 6  56 raw3215_write+494 [0x30ba0a]
 7  40 con3215_write+68 [0x30bafc]
 8  40 __call_console_drivers+146 [0x12b0fa]
 9  32 _call_console_drivers+102 [0x12b192]
10  64 release_console_sem+268 [0x12b614]
11 168 vprintk+462 [0x12bca6]
12  72 printk+68 [0x12bfd0]
13 256 __print_symbol+50 [0x15a882]
14  56 __show_trace+162 [0x103d06]
15  32 show_trace+224 [0x103e70]
16  48 show_stack+152 [0x103f20]
17  56 dump_stack+126 [0x104612]
18  96 __alloc_pages_internal+592 [0x175004]
19  80 cache_alloc_refill+776 [0x196f3c]
20  40 __kmalloc+258 [0x1972ae]
21  40 __alloc_skb+94 [0x328086]
22  32 pskb_copy+50 [0x328252]
23  32 skb_realloc_headroom+110 [0x328a72]
24 104 qeth_l2_hard_start_xmit+378 [0x7803bfde]
25  56 dev_hard_start_xmit+450 [0x32ef6e]
26  56 __qdisc_run+390 [0x3425d6]
27  48 dev_queue_xmit+410 [0x331e06]
28  40 ip_finish_output+308 [0x354ac8]
29  56 ip_output+218 [0x355b6e]
30  24 ip_local_out+56 [0x354584]
31 120 ip_queue_xmit+300 [0x355cec]
32  96 tcp_transmit_skb+812 [0x367da8]
33  40 tcp_push_one+158 [0x369fda]
34 112 tcp_sendmsg+852 [0x35d5a0]
35 240 sock_sendmsg+164 [0x32035c]
36  56 kernel_sendmsg+86 [0x32064a]
37  88 sock_no_sendpage+98 [0x322b22]
38 104 tcp_sendpage+70 [0x35cc1e]
39  48 sock_sendpage+74 [0x31eb66]
40  64 pipe_to_sendpage+102 [0x1c4b2e]
41  64 __splice_from_pipe+120 [0x1c5340]
42  72 splice_from_pipe+90 [0x1c57e6]
43  56 generic_splice_sendpage+38 [0x1c5832]
44  48 do_splice_from+104 [0x1c4c38]
45  48 direct_splice_actor+52 [0x1c4c88]
46  80 splice_direct_to_actor+180 [0x1c4f80]
47  72 do_splice_direct+70 [0x1c5112]
48  64 do_sendfile+360 [0x19de18]
49  72 sys_sendfile64+126 [0x19df32]
50 336 sysc_do_restart+18 [0x111a1a]

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
15 years ago[S390] Change default IPL method to IPL_VM.
Heiko Carstens [Tue, 28 Oct 2008 10:10:20 +0000 (11:10 +0100)]
[S390] Change default IPL method to IPL_VM.

allyesconfig and allmodconfig built kernels have a tape IPL record.
A the vmreader record makes much more sense, since hardly anybody will
ever IPL a kernel from tape. So change the default.
As I side effect I can test these kernels without fiddling around with
the kernel config ;)

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
15 years ago[S390] tape: disable interrupts in tape_open and tape_release
Frank Munzert [Tue, 28 Oct 2008 10:10:19 +0000 (11:10 +0100)]
[S390] tape: disable interrupts in tape_open and tape_release

Get tape device lock with interrupts disabled. Otherwise lockdep will issue a
warning similar to:

=================================
[ INFO: inconsistent lock state ]
2.6.27 #1
---------------------------------
inconsistent {in-hardirq-W} -> {hardirq-on-W} usage.
vol_id/2903 [HC0[0]:SC0[0]:HE1:SE1] takes:
 (sch->lock){++..}, at: [<000003e00004c7a2>] tape_open+0x42/0x1a4 [tape]
{in-hardirq-W} state was registered at:
  [<000000000007ce5c>] __lock_acquire+0x894/0xa74
  [<000000000007d0ce>] lock_acquire+0x92/0xb8
  [<0000000000345154>] _spin_lock+0x5c/0x9c
  [<0000000000202264>] do_IRQ+0x124/0x1f0
  [<0000000000026610>] io_return+0x0/0x8

irq event stamp: 847
hardirqs last  enabled at (847): [<000000000007aca6>] trace_hardirqs_on+0x2a/0x38
hardirqs last disabled at (846): [<0000000000076ca2>] trace_hardirqs_off+0x2a/0x38
softirqs last  enabled at (0): [<000000000004909e>] copy_process+0x43e/0x11f4
softirqs last disabled at (0): [<0000000000000000>] 0x0

other info that might help us debug this:
1 lock held by vol_id/2903:
 #0:  (&bdev->bd_mutex){--..}, at: [<000000000010e0f4>] do_open+0x78/0x358

stack backtrace:
CPU: 1 Not tainted 2.6.27 #1},
Process vol_id (pid: 2903, task: 000000003d4c0000, ksp: 000000003d4e3b10)
0400000000000000 000000003d4e3830 0000000000000002 0000000000000000
       000000003d4e38d0 000000003d4e3848 000000003d4e3848 00000000000168a8
       0000000000000000 000000003d4e3b10 0000000000000000 0000000000000000
       000000003d4e3830 000000000000000c 000000003d4e3830 000000003d4e38a0
       000000000034aa98 00000000000168a8 000000003d4e3830 000000003d4e3880
Call Trace:
([<000000000001681c>] show_trace+0x138/0x158)
 [<0000000000016902>] show_stack+0xc6/0xf8
 [<00000000000170d4>] dump_stack+0xb0/0xc0
 [<0000000000078810>] print_usage_bug+0x1e8/0x228
 [<000000000007a71c>] mark_lock+0xb14/0xd24
 [<000000000007cd5a>] __lock_acquire+0x792/0xa74
 [<000000000007d0ce>] lock_acquire+0x92/0xb8
 [<0000000000345154>] _spin_lock+0x5c/0x9c
 [<000003e00004c7a2>] tape_open+0x42/0x1a4 [tape]
 [<000003e00005185c>] tapeblock_open+0x98/0xd0 [tape]

Signed-off-by: Frank Munzert <munzert@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
15 years ago[S390] appldata: unsigned ops->size cannot be negative
Roel Kluin [Tue, 28 Oct 2008 10:10:18 +0000 (11:10 +0100)]
[S390] appldata: unsigned ops->size cannot be negative

unsigned ops->size cannot be negative

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
15 years ago[S390] tape block: complete request with correct locking
Frank Munzert [Tue, 28 Oct 2008 10:10:17 +0000 (11:10 +0100)]
[S390] tape block: complete request with correct locking

__blk_end_request must be called with request queue lock held. We need to use
blk_end_request rather than  __blk_end_request.

Signed-off-by: Frank Munzert <munzert@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
15 years ago[S390] Fix sysdev class file creation.
Heiko Carstens [Tue, 28 Oct 2008 10:10:16 +0000 (11:10 +0100)]
[S390] Fix sysdev class file creation.

Use sysdev_class_create_file() to create create sysdev class attributes
instead of sysfs_create_file(). Using sysfs_create_file() wasn't a very
good idea since the show and store functions have a different amount of
parameters for sysfs files and sysdev class files.
In particular the pointer to the buffer is the last argument and
therefore accesses to random memory regions happened.
Still worked surprisingly well until we got a kernel panic.

Cc: stable@kernel.org
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
15 years ago[S390] pgtables: Fix race in enable_sie vs. page table ops
Christian Borntraeger [Tue, 28 Oct 2008 10:10:15 +0000 (11:10 +0100)]
[S390] pgtables: Fix race in enable_sie vs. page table ops

The current enable_sie code sets the mm->context.pgstes bit to tell
dup_mm that the new mm should have extended page tables. This bit is also
used by the s390 specific page table primitives to decide about the page
table layout - which means context.pgstes has two meanings. This can cause
any kind of bugs. For example  - e.g. shrink_zone can call
ptep_clear_flush_young while enable_sie is running. ptep_clear_flush_young
will test for context.pgstes. Since enable_sie changed that value of the old
struct mm without changing the page table layout ptep_clear_flush_young will
do the wrong thing.
The solution is to split pgstes into two bits
- one for the allocation
- one for the current state

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
15 years ago[S390] qdio: remove incorrect memset
Jan Glauber [Tue, 28 Oct 2008 10:10:14 +0000 (11:10 +0100)]
[S390] qdio: remove incorrect memset

Remove the memset since zeroing the string is not needed and use
snprintf instead of sprintf.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
15 years ago[S390] qdio: prevent double qdio shutdown in case of I/O errors
Jan Glauber [Tue, 28 Oct 2008 10:10:13 +0000 (11:10 +0100)]
[S390] qdio: prevent double qdio shutdown in case of I/O errors

In case of I/O errors on a qdio subchannel qdio_shutdown may be
called twice by the qdio driver and by zfcp. Remove the
superfluous shutdown from qdio and let the upper layer driver
handle the error condition.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
15 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/xscaleiop
Russell King [Tue, 28 Oct 2008 09:55:45 +0000 (09:55 +0000)]
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/xscaleiop

15 years agosh: sh7785lcr: Select uImage as default image target.
Paul Mundt [Tue, 28 Oct 2008 09:50:00 +0000 (18:50 +0900)]
sh: sh7785lcr: Select uImage as default image target.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Add on-chip RTC support for SH7722.
Paul Mundt [Tue, 28 Oct 2008 09:40:19 +0000 (18:40 +0900)]
sh: Add on-chip RTC support for SH7722.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agolockdep: minor fix for debug_show_all_locks()
qinghuang feng [Tue, 28 Oct 2008 09:24:28 +0000 (17:24 +0800)]
lockdep: minor fix for debug_show_all_locks()

When we failed to get tasklist_lock eventually (count equals 0),
we should only print " ignoring it.\n", and not print
" locked it.\n" needlessly.

Signed-off-by: Qinghuang Feng <qhfeng.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agotracing: fix a build error on alpha
Frederic Weisbecker [Tue, 28 Oct 2008 08:43:26 +0000 (09:43 +0100)]
tracing: fix a build error on alpha

Impact: build fix on Alpha

When tracing is enabled, some arch have included <linux/irqflags.h>
on their <asm/system.h> but others like alpha or m68k don't.

Build error on alpha:

kernel/trace/trace.c: In function 'tracing_cpumask_write':
kernel/trace/trace.c:2145: error: implicit declaration of function 'raw_local_irq_disable'
kernel/trace/trace.c:2162: error: implicit declaration of function 'raw_local_irq_enable'

Tested on Alpha through a cross-compiler (should correct a similar issue on m68k).

Reported-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agoSH 7366 needs SCIF_ONLY
Kuninori Morimoto [Tue, 28 Oct 2008 06:33:48 +0000 (15:33 +0900)]
SH 7366 needs SCIF_ONLY

SH 7366 has compile bug.
because there is no SCIF_ONLY for SH 7366.
this patch add it.

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agogdrom: Fix compile error
Nobuhiro Iwamatsu [Mon, 27 Oct 2008 02:32:27 +0000 (11:32 +0900)]
gdrom: Fix compile error

Return value and argument of block_device_operations.release of gdrom
was changed.
This patch fix this problem.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Provide a sample defconfig for the UL2 (SH7366) board.
Kuninori Morimoto [Tue, 28 Oct 2008 08:36:11 +0000 (17:36 +0900)]
sh: Provide a sample defconfig for the UL2 (SH7366) board.

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agox86, memory hotplug: remove wrong -1 in calling init_memory_mapping()
Shaohua Li [Mon, 27 Oct 2008 20:03:18 +0000 (13:03 -0700)]
x86, memory hotplug: remove wrong -1 in calling init_memory_mapping()

Impact: fix crash with memory hotplug

Shuahua Li found:

| I just did some experiments on a desktop for memory hotplug and this bug
| triggered a crash in my test.
|
| Yinghai's suggestion also fixed the bug.

We don't need to round it, just remove that extra -1

Signed-off-by: Yinghai <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agosh: Fix FPU tuning on toolchains with mismatched multilib targets.
Paul Mundt [Tue, 28 Oct 2008 08:19:35 +0000 (17:19 +0900)]
sh: Fix FPU tuning on toolchains with mismatched multilib targets.

Presently there is very little standing in the way of using an SH-4
toolchain for building an SH-2 kernel, and vice versa. Binutils itself
has no limitations whatsoever and supports explicit ISA hinting, which
we already use with varying degrees of success today.

This leaves GCC as the odd one out, due to a rather dubious policy
decision by the GCC folks to not include all of the CPU family variants
in the default list of multilib targets in GCC4. Despite best efforts to
the contrary, libgcc itself already contains awareness of the various CPU
types and remains generally usable, allowing it to safely be referenced
even on a mismatched target (and indeed, explicit ISA tuning by binutils
keeps us honest in terms of ensuring that we do not link incompatible
objects in).

In order to support this, a couple of changes had to be made. Firstly,
the introduction of MAYBE_DECLARE_EXPORT(), which provides a __weak
extern reference for libgcc resident routines when finer-grained
-m<cpu-family> based tuning is not supported by the toolchain. This
fixes up the __sdivsi3_i4i and __udivsi3_i4i references when dealing
with SH-2 kernels linked with an SH-4 libgcc. Secondly, in case where we
are unable to find a suitable match for CPU family tuning but still
have a toolchain that defaults to FP instruction generation, a suitable
nofpu target must be selected. This is accomplished by selecting the
first nofpu multilib target supported by the toolchain, which is
also necessary for selecting the proper libgcc to link against.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agomd: destroy partitions and notify udev when md array is stopped.
NeilBrown [Tue, 28 Oct 2008 06:01:23 +0000 (17:01 +1100)]
md: destroy partitions and notify udev when md array is stopped.

md arrays are not currently destroyed when they are stopped - they
remain in /sys/block.  Last time I tried this I tripped over locking
too much.

A consequence of this is that udev doesn't remove anything from /dev.
This is rather ugly.

As an interim measure until proper device removal can be achieved,
make sure all partitions are removed using the BLKRRPART ioctl, and
send a KOBJ_CHANGE when an md array is stopped.

Signed-off-by: NeilBrown <neilb@suse.de>
15 years agolibata: ahci enclosure management bit mask
David Milburn [Mon, 13 Oct 2008 19:38:36 +0000 (14:38 -0500)]
libata: ahci enclosure management bit mask

Enclosure management bit mask definitions.

Signed-off-by: David Milburn <dmilburn@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agolibata: ahci enclosure management led sync
David Milburn [Thu, 16 Oct 2008 14:26:19 +0000 (09:26 -0500)]
libata: ahci enclosure management led sync

Synchronize ahci_sw_activity and ahci_sw_activity_blink with ata_port lock.

Signed-off-by: David Milburn <dmilburn@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agopata_ninja32: suspend/resume support
Alan Cox [Fri, 17 Oct 2008 18:08:31 +0000 (19:08 +0100)]
pata_ninja32: suspend/resume support

I had assumed that the standard recovery would be sufficient for this
hardware but it isn't. Fix up the other registers on resume as needed. See
bug #11735

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agodelay capable() check in ext4_has_free_blocks()
Eric Sandeen [Tue, 28 Oct 2008 04:08:17 +0000 (00:08 -0400)]
delay capable() check in ext4_has_free_blocks()

As reported by Eric Paris, the capable() check in ext4_has_free_blocks()
sometimes causes SELinux denials.

We can rearrange the logic so that we only try to use the root-reserved
blocks when necessary, and even then we can move the capable() test
to last, to avoid the check most of the time.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
15 years agomerge ext4_claim_free_blocks & ext4_has_free_blocks
Eric Sandeen [Tue, 28 Oct 2008 04:08:12 +0000 (00:08 -0400)]
merge ext4_claim_free_blocks & ext4_has_free_blocks

Mingming pointed out that ext4_claim_free_blocks & ext4_has_free_blocks
are largely cut & pasted; they can be collapsed/merged as follows.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
15 years agojbd2: Call the commit callback before the transaction could get dropped
Theodore Ts'o [Wed, 29 Oct 2008 01:08:20 +0000 (21:08 -0400)]
jbd2: Call the commit callback before the transaction could get dropped

The transaction can potentially get dropped if there are no buffers
that need to be written.  Make sure we call the commit callback before
potentially deciding to drop the transaction.  Also avoid
dereferencing the commit_transaction pointer in the marker for the
same reason.

This patch fixes the bug reported by Eric Paris at:
http://bugzilla.kernel.org/show_bug.cgi?id=11838

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Acked-by: Eric Sandeen <sandeen@redhat.com>
Tested-by: Eric Paris <eparis@redhat.com>
15 years agolibata: Fix LBA48 on pata_it821x RAID volumes.
Ondrej Zary [Sun, 26 Oct 2008 22:10:19 +0000 (18:10 -0400)]
libata: Fix LBA48 on pata_it821x RAID volumes.

[http://lkml.org/lkml/2008/10/18/82]

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agolibata: clear saved xfer_mode and ncq_enabled on device detach
Tejun Heo [Sun, 26 Oct 2008 06:43:03 +0000 (15:43 +0900)]
libata: clear saved xfer_mode and ncq_enabled on device detach

libata EH saves xfer_mode and ncq_enabled at start to later set
DUBIOUS_XFER flag if it has changed.  These values need to be cleared
on device detach such that hot device swap doesn't accidentally miss
DUBIOUS_XFER.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agosata_sil24: configure max read request size to 4k
Tejun Heo [Sat, 25 Oct 2008 05:26:54 +0000 (14:26 +0900)]
sata_sil24: configure max read request size to 4k

Due to request posting limitations, bandwidth of sil3132 is limited to
around 120MB/s with the minimum pci-e payload size (128bytes) which is
used by most consumer systems.  However, write throughput can be
slightly (~3%) increased by increasing the max read requeset size.
Configure it to 4k which is the maximum supported.  This optimization
is also done by SIMG's windows driver.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agolibata: add missing kernel-doc
Randy Dunlap [Mon, 27 Oct 2008 03:19:32 +0000 (20:19 -0700)]
libata: add missing kernel-doc

Fix libata missing kernel-doc:

Warning(lin2628-rc2//drivers/ata/libata-core.c:4562): No description
found for parameter 'tag'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agolibata: fix device iteration bugs
Tejun Heo [Mon, 27 Oct 2008 10:59:23 +0000 (19:59 +0900)]
libata: fix device iteration bugs

There were several places where only enabled devices should be
iterated over but device enabledness wasn't checked.

* IDENTIFY data 40 wire check in cable_is_40wire()
* xfer_mode/ncq_enabled saving in ata_scsi_error()
* DUBIOUS_XFER handling in ata_set_mode()

While at it, reformat comments in cable_is_40wire().

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agoahci: Add support for Promise PDC42819
Mark Nelson [Thu, 23 Oct 2008 03:08:16 +0000 (14:08 +1100)]
ahci: Add support for Promise PDC42819

Add an appropriate entry for the Promise PDC42819 controller. It has an
AHCI mode and so far works correctly with board_ahci.

This chip is found on Promise's FastTrak TX2650 (2 port) and TX4650 (4 port)
software-based RAID cards (for which there is a binary driver, t3sas) and
can be found on some motherboards, for example the MSI K9A2 Platinum,
which calls the chip a Promise T3 controller.

Although this controller also supports SAS devices, its default bootup mode
is AHCI and the binary driver has to do some magic to get the chip into the
appropriate mode to drive SAS disks.

Seeing as no documentation is provided by Promise, adding this entry to the
ahci driver allows the controller to be useful to people as a SATA
controller (with no ill effects on the system if a SAS disk is connected -
probing of the port just times out with "link online but device
misclassified"), without having to resort to using the binary driver. Users
who require SAS or the proprietary software raid can get this functionality
using the binary driver.

Signed-off-by: Mark Nelson <mdnelson8@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agoata: Switch all my stuff to a common address
Alan Cox [Mon, 27 Oct 2008 15:09:10 +0000 (15:09 +0000)]
ata: Switch all my stuff to a common address

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agoext4: fix a bug accessing freed memory in ext4_abort
Hidehiro Kawai [Tue, 28 Oct 2008 02:53:05 +0000 (22:53 -0400)]
ext4: fix a bug accessing freed memory in ext4_abort

Vegard Nossum reported a bug which accesses freed memory (found via
kmemcheck).  When journal has been aborted, ext4_put_super() calls
ext4_abort() after freeing the journal_t object, and then ext4_abort()
accesses it.  This patch fix it.

Signed-off-by: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com>
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
15 years agoext3: fix a bug accessing freed memory in ext3_abort
Hidehiro Kawai [Tue, 28 Oct 2008 02:51:46 +0000 (22:51 -0400)]
ext3: fix a bug accessing freed memory in ext3_abort

Vegard Nossum reported a bug which accesses freed memory (found via
kmemcheck).  When journal has been aborted, ext3_put_super() calls
ext3_abort() after freeing the journal_t object, and then ext3_abort()
accesses it.  This patch fix it.

Signed-off-by: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com>
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
15 years ago[ARM] 5322/1: Fix fastpath issue in mmci.c
Linus Walleij [Fri, 24 Oct 2008 20:17:50 +0000 (21:17 +0100)]
[ARM] 5322/1: Fix fastpath issue in mmci.c

Fix fastpath issues

Since mmci_request() can be called from a non-interrupt
context, and does, during kernel init, causing a host
of debug messages during boot if you enable spinlock debugging,
we need to use the spinlock calls that save IRQ flags and
restore them.

Signed-off-by: Linus Walleij <triad@df.lth.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years agomac80211.h: fix kernel-doc excesses
Randy Dunlap [Mon, 27 Oct 2008 16:47:03 +0000 (09:47 -0700)]
mac80211.h: fix kernel-doc excesses

Fix mac80211.h kernel-doc: it had some extra parameters that were
no longer valid and incorrect format for a return value in 2 places.

Warning(lin2628-rc2//include/net/mac80211.h:1487): Excess function parameter or struct member 'control' description in 'ieee80211_beacon_get'
Warning(lin2628-rc2//include/net/mac80211.h:1596): Excess function parameter or struct member 'control' description in 'ieee80211_get_buffered_bc'
Warning(lin2628-rc2//include/net/mac80211.h:1632): Excess function parameter or struct member 'rc4key' description in 'ieee80211_get_tkip_key'
Warning(lin2628-rc2//include/net/mac80211.h:1735): Excess function parameter or struct member 'return' description in 'ieee80211_start_tx_ba_session'
Warning(lin2628-rc2//include/net/mac80211.h:1775): Excess function parameter or struct member 'return' description in 'ieee80211_stop_tx_ba_session'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
15 years agop54: fix build warnings
Christian Lamparter [Sat, 25 Oct 2008 14:14:14 +0000 (16:14 +0200)]
p54: fix build warnings

On Saturday 25 October 2008 10:24:10 Johannes Berg wrote:
> just FYI in case you haven't seen them. the p54 one looks like a genuine
> problem.
>
> drivers/net/wireless/p54/p54common.c: In function ‘p54_parse_eeprom’:
> drivers/net/wireless/p54/p54common.c:325: warning: ‘synth’ may be used uninitialized in this function

There you go. Yes, it is a genuine problem, if the device's eeprom is screwed really up.

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
15 years agoath5k: Reset key cache on interface up, thus fixing resume
Elias Oltmanns [Fri, 24 Oct 2008 19:59:18 +0000 (21:59 +0200)]
ath5k: Reset key cache on interface up, thus fixing resume

After a s2ram / resume cycle, resetting the key cache does not work
unless it is deferred until after the hardware has been reinitialised by
a call to ath5k_hw_reset(). This fixes a regression introduced by
"ath5k: fix suspend-related oops on rmmod".

Signed-off-by: Elias Oltmanns <eo@nebensachen.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
15 years agomac80211: correct warnings in minstrel rate control algorithm
John W. Linville [Wed, 22 Oct 2008 23:41:34 +0000 (19:41 -0400)]
mac80211: correct warnings in minstrel rate control algorithm

Signed-off-by: John W. Linville <linville@tuxdriver.com>
15 years agoRFKILL: fix input layer initialisation
Dmitry Baryshkov [Wed, 22 Oct 2008 16:52:55 +0000 (20:52 +0400)]
RFKILL: fix input layer initialisation

Initialise correctly last fields, so tasks can be actually executed.
On some architectures the initial jiffies value is not zero, so later
all rfkill incorrectly decides that rfkill_*.last is in future.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
15 years agop54: fix misbehavings when firmware can't be found
Christian Lamparter [Wed, 22 Oct 2008 12:19:56 +0000 (14:19 +0200)]
p54: fix misbehavings when firmware can't be found

This patch fixes a double-free error in p54pci
( http://bugzilla.kernel.org/show_bug.cgi?id=11782 )

Trying to free already-free IRQ 10
Pid: 108, comm: pccardd Not tainted 2.6.27-05577-g0cfd810-dirty #1
Call Trace:
 [<c01265dc>] free_irq+0xad/0xb9
 [<c01050dd>] dma_generic_alloc_coherent+0x0/0xd7
 [<c01ba8e6>] p54p_stop+0x4a/0x1fa
 [<c01050dd>] dma_generic_alloc_coherent+0x0/0xd7
 [<c02348c5>] p54p_probe+0x23e/0x302

Tested-by: Sean Young
Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
15 years agodm9601: runtime mac address change support
Peter Korsgaard [Fri, 24 Oct 2008 07:08:27 +0000 (09:08 +0200)]
dm9601: runtime mac address change support

Implement set_mac_address for runtime mac address change.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agovia-velocity: use driver string instead of dev->name before register_netdev()
Sven Hartge [Thu, 23 Oct 2008 13:03:44 +0000 (13:03 +0000)]
via-velocity: use driver string instead of dev->name before register_netdev()

This patch corrects a message bug in the via-velocity driver which
bothered me for some time.

The messages printed during device init look like the following:

[    8.486422] eth%d: set value of parameter Wake On Lan options to 0
                  ^^!
[    8.487340] eth0: VIA Networking Velocity Family Gigabit Ethernet Adapter

Note the unresolved format string.

dev->name is unavailable before register_netdev, so use
dev_driver_string(&pdev->dev), which is also consistent with other
drivers.

"char *devname" parameters had to be converted to "const char *devname" to
be consistent with dev_driver_string return value.

Signed-off-by: Sven Hartge <sven@svenhartge.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agodrivers/net/wan/syncppp: Fix unused-var warnings
Jeff Garzik [Mon, 27 Oct 2008 19:06:51 +0000 (15:06 -0400)]
drivers/net/wan/syncppp: Fix unused-var warnings

Fix !CONFIG_INET warnings.

Spotted, and original patch authored by: Manish Katiyar <mkatiyar@gmail.com>

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agomlx4: Setting the correct offset for default mac address
Yevgeny Petrilin [Sun, 26 Oct 2008 15:13:24 +0000 (17:13 +0200)]
mlx4: Setting the correct offset for default mac address

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agomlx4_en: remove duplicated #include
Huang Weiyi [Sun, 26 Oct 2008 15:05:42 +0000 (23:05 +0800)]
mlx4_en: remove duplicated #include

Removed duplicated #include <linux/cpumask.h> in
drivers/net/mlx4/en_main.c.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agoibm_newemac: Fix typo in flow control config option
Josh Boyer [Fri, 24 Oct 2008 13:53:14 +0000 (09:53 -0400)]
ibm_newemac: Fix typo in flow control config option

The recent build fix for ibm_newemac has a typo in the config
option #ifdef used for disabling flow control.  This corrects
it to the proper Kconfig option name.

Reported-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agoehea: Detect 16GB hugepages for firmware restriction
Thomas Klein [Mon, 27 Oct 2008 09:38:46 +0000 (10:38 +0100)]
ehea: Detect 16GB hugepages for firmware restriction

All kernel memory which is used for kernel/hardware data transfer must
be registered with firmware using "memory regions". 16GB hugepages
may not be part of a memory region due to firmware restrictions.
This patch modifies the walk_memory_resource callback fn to filter
hugepages and add only standard memory to the busmap which is later
on used for MR registration.

Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agodmfe: check pci_alloc_consistent errors
FUJITA Tomonori [Thu, 23 Oct 2008 09:01:13 +0000 (18:01 +0900)]
dmfe: check pci_alloc_consistent errors

We need to check the address that pci_alloc_consistent() returns since
it might fail.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agoqeth: avoid skb_under_panic for malformatted inbound data
Ursula Braun [Fri, 24 Oct 2008 09:16:55 +0000 (11:16 +0200)]
qeth: avoid skb_under_panic for malformatted inbound data

To make the qeth driver more robust in case of malformatted inbound
packets due to hardware problems, an additional check for
OSN-card-type is added for OSN-type packets.

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agoqeth: remove unnecessary support ckeck in sysfs route6
Frank Blaschka [Fri, 24 Oct 2008 09:16:54 +0000 (11:16 +0200)]
qeth: remove unnecessary support ckeck in sysfs route6

Removing this check improves usability because you do not have to
set the device online to initially set ipv6 routing option.

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agoqeth: fix offset error in non prealloc header path
Frank Blaschka [Fri, 24 Oct 2008 09:16:53 +0000 (11:16 +0200)]
qeth: fix offset error in non prealloc header path

For the non preallocated qeth header code path we should not
change the header length.

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agoqeth: remove non-recover-thread checkings
Ursula Braun [Fri, 24 Oct 2008 09:16:52 +0000 (11:16 +0200)]
qeth: remove non-recover-thread checkings

IP-threads have been removed from the qeth driver. Only the
recover-thread is left over. This makes checkings for
non-recover threads superfluous.

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Mon, 27 Oct 2008 18:41:51 +0000 (11:41 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  libata: fix NCQ devices behind port multipliers
  scsi: make sure that scsi_init_shared_tag_map() doesn't overwrite existing map

15 years agolibata: fix NCQ devices behind port multipliers
Jens Axboe [Mon, 27 Oct 2008 18:23:06 +0000 (19:23 +0100)]
libata: fix NCQ devices behind port multipliers

For devices behind sata port multipliers, we have to make sure that
they share a tag map since all tags for that PMP must be unique.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
15 years agoscsi: make sure that scsi_init_shared_tag_map() doesn't overwrite existing map
Jens Axboe [Mon, 27 Oct 2008 18:20:59 +0000 (19:20 +0100)]
scsi: make sure that scsi_init_shared_tag_map() doesn't overwrite existing map

Right now callers have to check whether scsi_host->bqt is already
set up, it's much cleaner to just have scsi_init_shared_tag_map()
does this check on its own.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
15 years agox86: keep the /proc/meminfo page count correct
Yinghai Lu [Sun, 26 Oct 2008 05:58:21 +0000 (22:58 -0700)]
x86: keep the /proc/meminfo page count correct

Impact: get correct page count in /proc/meminfo

found page count in /proc/meminfo is nor correct on 1G system in VirtualBox 2.0.4

# cat /proc/meminfo
MemTotal:        1017508 kB
MemFree:          822700 kB
Buffers:            1456 kB
Cached:            26632 kB
SwapCached:            0 kB
...
Hugepagesize:       2048 kB
DirectMap4k:      4032 kB
DirectMap2M:  18446744073709549568 kB

with this patch get:
...
DirectMap4k:      4032 kB
DirectMap2M:   1044480 kB

which is consistent to kernel_page_tables
---[ Low Kernel Mapping ]---
0xffff880000000000-0xffff880000001000           4K     RW     PCD     GLB x  pte
0xffff880000001000-0xffff88000009f000         632K     RW             GLB x  pte
0xffff88000009f000-0xffff8800000a0000           4K     RW     PCD     GLB x  pte
0xffff8800000a0000-0xffff880000200000        1408K     RW             GLB x  pte
0xffff880000200000-0xffff88003fe00000        1020M     RW         PSE GLB x  pmd
0xffff88003fe00000-0xffff88003fff0000        1984K     RW             GLB NX pte
0xffff88003fff0000-0xffff880040000000          64K                           pte
0xffff880040000000-0xffff888000000000         511G                           pud
0xffff888000000000-0xffffc20000000000       58880G                           pgd

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agosched: fix documentation reference for sched_min_granularity_ns
Jiri Kosina [Mon, 27 Oct 2008 16:41:58 +0000 (17:41 +0100)]
sched: fix documentation reference for sched_min_granularity_ns

Impact: documentation fix

sched-design-CFS.txt wrongly references sched_granularity_ns sysctl,
as its name in fact is sched_min_granularity_ns.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agoMerge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
Linus Torvalds [Mon, 27 Oct 2008 16:54:23 +0000 (09:54 -0700)]
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (33 commits)
  MIPS: lemote/lm2e: Added io_map_base to pci controller
  MIPS: TXx9: Make firmware parameter passing more robust
  MIPS: Markeins: Remove unnecessary define and cleanup comments, etc.
  MIPS: Markeins: Extract ll_emma2rh_* functions
  MIPS: Markeins: Remove runtime debug prints
  MIPS: EMMA: Fold arch/mips/emma/{common,markeins}/irq*.c into markeins/irq.c
  MIPS: EMMA2RH: Remove emma2rh_gpio_irq_base
  MIPS: EMMA2RH: Remove emma2rh_sw_irq_base
  MIPS: EMMA2RH: Remove emma2rh_irq_base global variable
  MIPS: EMMA2RH: Remove emma2rh_sync on read operation
  MIPS: EMMA: Move <asm/emma2rh> to <asm/emma> dir
  MIPS: EMMA: Move arch/mips/emma2rh/ into arch/mips/emma/
  MIPS: EMMA: Kconfig reorganization
  MIPS: Add CONFIG_CPU_R5500 for NEC VR5500 series processors
  MIPS: RB532: Disable the right device
  MIPS: Add support for NXP PNX833x (STB222/5) into linux kernel
  MIPS: TXx9: CONFIG_TOSHIBA_RBTX4939 spelling
  MIPS: Fix KGDB build error
  INPUT: sgi_btns: Add license specification
  MIPS: IP22: ip22-int.c header file weeding.
  ...

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394...
Linus Torvalds [Mon, 27 Oct 2008 16:37:16 +0000 (09:37 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: fw-sbp2: fix races
  firewire: fw-sbp2: delay first login to avoid retries
  firewire: fw-ohci: initialization failure path fixes
  firewire: fw-ohci: don't leak dma memory on module removal
  firewire: fix struct fw_node memory leak
  firewire: Survive more than 256 bus resets

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Mon, 27 Oct 2008 16:36:33 +0000 (09:36 -0700)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: ASoC: Blackfin: update SPORT0 port selector (v2)
  ALSA: hda - Restore default pin configs for realtek codecs
  sound: use a common working email address
  pci: use pci_ioremap_bar() in sound/

15 years agoMIPS: lemote/lm2e: Added io_map_base to pci controller
Zhang Le [Mon, 27 Oct 2008 23:33:24 +0000 (23:33 +0000)]
MIPS: lemote/lm2e: Added io_map_base to pci controller

Signed-off-by: Zhang Le <r0bertz@gentoo.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: TXx9: Make firmware parameter passing more robust
Geert Uytterhoeven [Mon, 27 Oct 2008 14:25:49 +0000 (15:25 +0100)]
MIPS: TXx9: Make firmware parameter passing more robust

When booting Linux on a txx9 board with VxWorks boot loader, it crashes in
prom_getenv(), as VxWorks doesn't pass firmware parameters in a0-a3 (in my
case, the actual leftover values in these registers were 0x80002000,
0x80001fe0, 0x2000, and 0x20).

Make the parsing of argc, argv, and envp a bit more robust by checking if
argc is a number below CKSEG0, and argv/envp point to CKSEG0.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: Markeins: Remove unnecessary define and cleanup comments, etc.
Shinya Kuribayashi [Thu, 23 Oct 2008 16:36:33 +0000 (01:36 +0900)]
MIPS: Markeins: Remove unnecessary define and cleanup comments, etc.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: Markeins: Extract ll_emma2rh_* functions
Shinya Kuribayashi [Thu, 23 Oct 2008 16:35:59 +0000 (01:35 +0900)]
MIPS: Markeins: Extract ll_emma2rh_* functions

These functions are completely ineffective.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: Markeins: Remove runtime debug prints
Shinya Kuribayashi [Thu, 23 Oct 2008 16:33:10 +0000 (01:33 +0900)]
MIPS: Markeins: Remove runtime debug prints

Remove runtime db_* macros as we don't need them any more.  In general,
such helpers are useful for initial porting, but once approved, they are
not indispensable.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: EMMA: Fold arch/mips/emma/{common,markeins}/irq*.c into markeins/irq.c
Shinya Kuribayashi [Thu, 23 Oct 2008 16:32:40 +0000 (01:32 +0900)]
MIPS: EMMA: Fold arch/mips/emma/{common,markeins}/irq*.c into markeins/irq.c

Current EMMA2RH irq code is mess.  Before cleaning it up, gather them
in one place as a first step.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: EMMA2RH: Remove emma2rh_gpio_irq_base
Shinya Kuribayashi [Thu, 23 Oct 2008 16:32:11 +0000 (01:32 +0900)]
MIPS: EMMA2RH: Remove emma2rh_gpio_irq_base

Let's use immediate value, instead.  This also saves memory footprint,
and probably a little bit faster.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: EMMA2RH: Remove emma2rh_sw_irq_base
Shinya Kuribayashi [Thu, 23 Oct 2008 16:31:43 +0000 (01:31 +0900)]
MIPS: EMMA2RH: Remove emma2rh_sw_irq_base

Let's use immediate value, instead.  This also saves memory footprint,
and probably a little bit faster.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: EMMA2RH: Remove emma2rh_irq_base global variable
Shinya Kuribayashi [Thu, 23 Oct 2008 16:31:16 +0000 (01:31 +0900)]
MIPS: EMMA2RH: Remove emma2rh_irq_base global variable

Let's use immediate value, instead.  This also saves memory footprint,
and probably a little bit faster.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: EMMA2RH: Remove emma2rh_sync on read operation
Shinya Kuribayashi [Thu, 23 Oct 2008 16:30:48 +0000 (01:30 +0900)]
MIPS: EMMA2RH: Remove emma2rh_sync on read operation

It's totally a waste of CPU cycles.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: EMMA: Move <asm/emma2rh> to <asm/emma> dir
Shinya Kuribayashi [Thu, 23 Oct 2008 16:30:20 +0000 (01:30 +0900)]
MIPS: EMMA: Move <asm/emma2rh> to <asm/emma> dir

We'll put all EMMA related headers there in the future.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: EMMA: Move arch/mips/emma2rh/ into arch/mips/emma/
Shinya Kuribayashi [Thu, 23 Oct 2008 16:29:16 +0000 (01:29 +0900)]
MIPS: EMMA: Move arch/mips/emma2rh/ into arch/mips/emma/

git mv arch/mips/{emma2rh,emma} and fixups Makefiles.  We'll put all NEC
EMMA series based machines there in the future.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: EMMA: Kconfig reorganization
Shinya Kuribayashi [Thu, 23 Oct 2008 21:00:01 +0000 (06:00 +0900)]
MIPS: EMMA: Kconfig reorganization

- Move EMMA related stuff into arch/mips/emma/Kconfig
- Create CONFIG_SOC_EMMA* to handle more EMMA SoCs effectively
- Rename CONFIG_MARKEINS into CONFIG_NEC_MARKEINS

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: Add CONFIG_CPU_R5500 for NEC VR5500 series processors
Shinya Kuribayashi [Thu, 23 Oct 2008 16:27:57 +0000 (01:27 +0900)]
MIPS: Add CONFIG_CPU_R5500 for NEC VR5500 series processors

We already have sufficient infrastructure to support VR5500 and VR5500A
series processors.  Here's a Makefile support to make it selectable by
ports, and enable it for NEC EMMA2RH Markeins board.

This patch also fixes a confused target help, and adds 1Gb PageMask bits
supported by VR5500 and its variants.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: RB532: Disable the right device
Phil Sutter [Mon, 27 Oct 2008 01:29:57 +0000 (02:29 +0100)]
MIPS: RB532: Disable the right device

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: Add support for NXP PNX833x (STB222/5) into linux kernel
Daniel Laird [Mon, 16 Jun 2008 14:49:21 +0000 (15:49 +0100)]
MIPS: Add support for NXP PNX833x (STB222/5) into linux kernel

The following patch add support for the NXP PNX833x SOC.  More
specifically it adds support for the STB222/5 variant. It fixes
the vectored interrupt issue.

Signed-off-by: daniel.j.laird <daniel.j.laird@nxp.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: TXx9: CONFIG_TOSHIBA_RBTX4939 spelling
Geert Uytterhoeven [Thu, 23 Oct 2008 14:43:13 +0000 (16:43 +0200)]
MIPS: TXx9: CONFIG_TOSHIBA_RBTX4939 spelling

Fix a typo in the comment for the TOSHIBA_RBTX4939 config option

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: Fix KGDB build error
Yoichi Yuasa [Sat, 25 Oct 2008 08:30:35 +0000 (17:30 +0900)]
MIPS: Fix KGDB build error

In file included from include/linux/ptrace.h:49,
                 from arch/mips/kernel/kgdb.c:25:
/home/yuasa/src/linux/test/mips/linux/arch/mips/include/asm/ptrace.h:123: error: expected declaration specifiers or '...' before '__s64'
/home/yuasa/src/linux/test/mips/linux/arch/mips/include/asm/ptrace.h:124: error: expected declaration specifiers or '...' before '__s64'
/home/yuasa/src/linux/test/mips/linux/arch/mips/include/asm/ptrace.h:126: error: expected declaration specifiers or '...' before '__u32'
/home/yuasa/src/linux/test/mips/linux/arch/mips/include/asm/ptrace.h:127: error: expected declaration specifiers or '...' before '__u32'
make[1]: *** [arch/mips/kernel/kgdb.o] Error 1

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoINPUT: sgi_btns: Add license specification
Dmitri Vorobiev [Fri, 24 Oct 2008 22:46:57 +0000 (01:46 +0300)]
INPUT: sgi_btns: Add license specification

The SGI Volume Button interface driver uses GPL-only symbols
platform_driver_unregister and platform_driver_register, but
lacks license specification. Thus, when compiled as a module,
this driver cannot be installed. This patch fixes this by
adding the MODULE_LICENSE() specification.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
15 years agoMIPS: IP22: ip22-int.c header file weeding.
Ralf Baechle [Sat, 25 Oct 2008 14:51:48 +0000 (15:51 +0100)]
MIPS: IP22: ip22-int.c header file weeding.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>