11 years agox86 vDSO: don't use disabled vDSO for signal trampoline
Roland McGrath [Wed, 9 Apr 2008 08:29:27 +0000]
x86 vDSO: don't use disabled vDSO for signal trampoline

If the vDSO was not mapped, don't use it as the "restorer" for a signal
handler.  Whether we have a pointer in mm->context.vdso depends on what
happened at exec time, so we shouldn't check any global flags now.

Background:

Currently, every 32-bit exec gets the vDSO mapped even if it's disabled
(the process just doesn't get told about it).  Because it's in fact
always there, the bug that this patch fixes cannot happen now.  With
the second patch, it won't be mapped at all when it's disabled, which is
one of the things that people might really want when they disable it (so
nothing they didn't ask for goes into their address space).

The 32-bit signal handler setup when SA_RESTORER is not used refers to
current->mm->context.vdso without regard to whether the vDSO has been
disabled when the process was exec'd.  This patch fixes this not to use
it when it's null, which becomes possible after the second patch. (This
never happens in normal use, because glibc's sigaction call uses
SA_RESTORER unless glibc detected the vDSO.)

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

11 years agox86: increase the kernel text limit to 512 MB
Ingo Molnar [Thu, 21 Feb 2008 11:50:51 +0000]
x86: increase the kernel text limit to 512 MB

people sometimes do crazy stuff like building really large static
arrays into their kernels or building allyesconfig kernels. Give
more space to the kernel and push modules up a bit: kernel has
512 MB and modules have 1.5 GB.

Should be enough for a few years ;-)

Signed-off-by: Ingo Molnar <mingo@elte.hu>

11 years agox86: check vmlinux limits, 64-bit
Ingo Molnar [Thu, 21 Feb 2008 12:45:16 +0000]
x86: check vmlinux limits, 64-bit

these build-time and link-time checks would have prevented the
vmlinux size regression.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

11 years agox86, pci: fix off-by-one errors in some pirq warnings
Björn Steinbrink [Mon, 31 Mar 2008 02:22:53 +0000]
x86, pci: fix off-by-one errors in some pirq warnings

fix bogus pirq warnings reported in:

  http://bugzilla.kernel.org/show_bug.cgi?id=10366

safe to be backported to v2.6.25 and earlier.

Cc: stable@kernel.org
Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

11 years agoLinux 2.6.25
Linus Torvalds [Thu, 17 Apr 2008 02:49:44 +0000]
Linux 2.6.25

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
Linus Torvalds [Thu, 17 Apr 2008 01:58:37 +0000]
Merge git://git./linux/kernel/git/bart/ide-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
  it821x: do not describe noraid parameter with its value
  Pb1200/DBAu1200: fix bad IDE resource size
  Au1200: IDE driver build fix
  Au1200: kill IDE driver function prototypes
  avr32 mustn't select HAVE_IDE

11 years agoit821x: do not describe noraid parameter with its value
Paul Bolle [Wed, 16 Apr 2008 23:14:33 +0000]
it821x: do not describe noraid parameter with its value

Describe noraid parameter with its name (and not its value).

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

11 years agoPb1200/DBAu1200: fix bad IDE resource size
Sergei Shtylyov [Wed, 16 Apr 2008 23:14:33 +0000]
Pb1200/DBAu1200: fix bad IDE resource size

The header files for the Pb1200/DBAu1200 boards have wrong definition for the
IDE interface's decoded range length -- it should be 512 bytes according to
what the IDE driver does.  In addition, the IDE platform device claims 1 byte
too many for its memory resource -- fix the platform code and the IDE driver
in accordance.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

11 years agoAu1200: IDE driver build fix
Sergei Shtylyov [Wed, 16 Apr 2008 23:14:33 +0000]
Au1200: IDE driver build fix

The driver fails to compile with CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA enabled:

drivers/ide/mips/au1xxx-ide.c: In function `auide_build_dmatable':
drivers/ide/mips/au1xxx-ide.c:256: error: implicit declaration of function
`sg_virt'
drivers/ide/mips/au1xxx-ide.c:275: error: implicit declaration of function
`sg_next'
drivers/ide/mips/au1xxx-ide.c:275: warning: assignment makes pointer from
integer without a cast

Fix this by including <linux/scatterlist.h>. While at it, remove the #include's
without which the driver happily builds.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

11 years agoAu1200: kill IDE driver function prototypes
Sergei Shtylyov [Wed, 16 Apr 2008 23:14:33 +0000]
Au1200: kill IDE driver function prototypes

Fix these warnings emitted when compiling drivers/ide/mips/au1xxx-ide.c:

include/asm/mach-au1x00/au1xxx_ide.h:137: warning: 'auide_tune_drive' declared
`static' but never defined
include/asm/mach-au1x00/au1xxx_ide.h:138: warning: 'auide_tune_chipset' declared
 `static' but never defined

by wiping out the whole "function prototyping" section from the header file
<asm-mips/mach-au1x00/au1xxx_ide.h> as it mostly declared functions that are
already dead in the IDE driver; move the only useful prototype into the driver.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

11 years agoavr32 mustn't select HAVE_IDE
Adrian Bunk [Wed, 16 Apr 2008 23:14:32 +0000]
avr32 mustn't select HAVE_IDE

There's a libata based PATA driver for avr32, but no support for
drivers/ide/ on avr32.

This patch fixes the following compile error:

<--  snip  -->

...
CC [M] drivers/ide/ide-cd.o
In file included from /home/bunk/linux/kernel-2.6/git/linux-2.6/drivers/ide/ide-cd.c:37:
/home/bunk/linux/kernel-2.6/git/linux-2.6/include/linux/ide.h:209:21: error: asm/ide.h: No such file or directory
make[3]: *** [drivers/ide/ide-cd.o] Error 1

<--  snip  -->

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

11 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
Linus Torvalds [Wed, 16 Apr 2008 14:45:45 +0000]
Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block

* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  block: update git url for blktrace
  io context: increment task attachment count in ioc_task_link()

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
Linus Torvalds [Wed, 16 Apr 2008 14:45:05 +0000]
Merge git://git./linux/kernel/git/gregkh/usb-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
  USB: remove broken usb-serial num_endpoints check
  USB: option: Add new vendor ID and device ID for AMOI HSDPA modem
  USB: support more Huawei data card product IDs
  USB: option.c: add more device IDs
  USB: Obscure Maxon BP3-USB Device Support 16d8:6280 for option driver

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Wed, 16 Apr 2008 14:44:27 +0000]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  [TCP]: Add return value indication to tcp_prune_ofo_queue().
  PS3: gelic: fix the oops on the broken IE returned from the hypervisor
  b43legacy: fix DMA mapping leakage
  mac80211: remove message on receiving unexpected unencrypted frames
  Update rt2x00 MAINTAINERS entry
  Add rfkill to MAINTAINERS file
  rfkill: Fix device type check when toggling states
  b43legacy: Fix usage of struct device used for DMAing
  ssb: Fix usage of struct device used for DMAing
  MAINTAINERS: move to generic repository for iwlwifi
  b43legacy: fix initvals loading on bcm4303
  rtl8187: Add missing priv->vif assignments
  netconsole: only set CON_PRINTBUFFER if the user specifies a netconsole
  [CAN]: Update documentation of struct sockaddr_can
  MAINTAINERS: isdn4linux@listserv.isdn4linux.de is subscribers-only
  [TCP]: Fix never pruned tcp out-of-order queue.
  [NET_SCHED] sch_api: fix qdisc_tree_decrease_qlen() loop

11 years agoAFS: Do not describe debug parameters with their value
Paul Bolle [Wed, 16 Apr 2008 10:08:22 +0000]
AFS: Do not describe debug parameters with their value

Describe debug parameters with their names (and not their values).

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoUSB: remove broken usb-serial num_endpoints check
Greg Kroah-Hartman [Mon, 14 Apr 2008 21:17:29 +0000]
USB: remove broken usb-serial num_endpoints check

The num_interrupt_in, num_bulk_in, and other checks in the usb-serial
code are just wrong, there are too many different devices out there with
different numbers of endpoints.  We need to just be sticking with the
device ids instead of trying to catch this kind of thing.  It broke too
many different devices.

This fixes a large number of usb-serial devices to get them working
properly again.

Cc: Oliver Neukum <oliver@neukum.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: option: Add new vendor ID and device ID for AMOI HSDPA modem
tang kai [Mon, 14 Apr 2008 02:06:35 +0000]
USB: option: Add new vendor ID and device ID for AMOI HSDPA modem

This patch add new vendor ID and device ID  for AMOI HSDPA modem.

From: tang kai <tangk73@hotmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: support more Huawei data card product IDs
fangxiaozhi [Thu, 10 Apr 2008 06:51:06 +0000]
USB: support more Huawei data card product IDs

 - declare the unusal device for Huawei data card devices in
   unusual_devs.h
 - disable the product ID matching for Huawei data card devices in
   usb_match_device function of driver.c
 - declare the product IDs in option.c.

Signed-off-by: fangxiaozhi <huananhu@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: option.c: add more device IDs
Matthias Urlichs [Thu, 10 Apr 2008 08:13:32 +0000]
USB: option.c: add more device IDs

Add devices by AMOI and NovatelWireless.

Signed-Off-By: Matthias Urlichs <matthias@urlichs.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years agoUSB: Obscure Maxon BP3-USB Device Support 16d8:6280 for option driver
James Cameron [Wed, 9 Apr 2008 08:59:13 +0000]
USB: Obscure Maxon BP3-USB Device Support 16d8:6280 for option driver

The modem was detected, the ttyUSB{0,1,2} appeared, a call could be
made, and the expected data rate was achieved.  Tested for an hour or
two, total of 100Mb.  I shall do more testing.

Signed-off-by: James Cameron <quozl@laptop.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

11 years ago[TCP]: Add return value indication to tcp_prune_ofo_queue().
Vitaliy Gusev [Wed, 16 Apr 2008 03:26:34 +0000]
[TCP]: Add return value indication to tcp_prune_ofo_queue().

Returns non-zero if tp->out_of_order_queue was seen non-empty.
This allows tcp_try_rmem_schedule() to return early.

Signed-off-by: Vitaliy Gusev <vgusev@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years agoacpi: unneccessary to scan the PCI bus already scanned
yakui.zhao@intel.com [Tue, 15 Apr 2008 21:34:49 +0000]
acpi: unneccessary to scan the PCI bus already scanned

http://bugzilla.kernel.org/show_bug.cgi?id=10124

this change:

      commit 08f1c192c3c32797068bfe97738babb3295bbf42
      Author: Muli Ben-Yehuda <muli@il.ibm.com>
      Date:   Sun Jul 22 00:23:39 2007 +0300

         x86-64: introduce struct pci_sysdata to facilitate sharing of ->sysdata

         This patch introduces struct pci_sysdata to x86 and x86-64, and
         converts the existing two users (NUMA, Calgary) to use it.

         This lays the groundwork for having other users of sysdata, such as
         the PCI domains work.

         The Calgary bits are tested, the NUMA bits just look ok.

replaces pcibios_scan_root by pci_scan_bus_parented...

but in pcibios_scan_root we have a check about scanned busses.

Cc: <yakui.zhao@intel.com>
Cc: Stian Jordet <stian@jordet.net>
Cc: Len Brown <lenb@kernel.org>
Cc: Greg KH <greg@kroah.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "Yinghai Lu" <yhlu.kernel@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoacpi thermal trip points increased to 12
Krzysztof Helt [Tue, 15 Apr 2008 21:34:47 +0000]
acpi thermal trip points increased to 12

The THERMAL_MAX_TRIPS value is set to 10.  It is too few for the Compaq AP550
machine which has 12 trip points.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: Len Brown <lenb@kernel.org>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoacpi: bus: check once more for an empty list after locking it
Chuck Ebbert [Tue, 15 Apr 2008 21:34:47 +0000]
acpi: bus: check once more for an empty list after locking it

List could have become empty after the unlocked check that was made earlier,
so check again inside the lock.

Should fix https://bugzilla.redhat.com/show_bug.cgi?id=427765

Signed-off-by: Chuck Ebbert <cebbert@redhat.com>
Cc: <stable@kernel.org>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agospi: spi_s3c24xx must initialize num_chipselect
Ben Dooks [Tue, 15 Apr 2008 21:34:46 +0000]
spi: spi_s3c24xx must initialize num_chipselect

The SPI core now expects num_chipselect to be set correctly as due to added
checks on the chip being selected before an transfer is allowed.  This patch
adds a num_cs field to the platform data which needs to be set correctly
before adding the SPI platform device.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agospi: spi_s3c24xx must initialize bus_num
Ben Dooks [Tue, 15 Apr 2008 21:34:45 +0000]
spi: spi_s3c24xx must initialize bus_num

Pass the bus number we expect the S3C24XX SPI driver to attach to via the
platform data.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agospi: spi_s3c24xx driver must init completion
Ben Dooks [Tue, 15 Apr 2008 21:34:44 +0000]
spi: spi_s3c24xx driver must init completion

The s3c24xx_spi_txrx() function should initialise the completion each time
before using it, otherwise we end up with the possibility of returning success
before the interrupt handler has processed all the data.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agovfs: fix possible deadlock in ext2, ext3, ext4 when using xattrs
Jan Kara [Tue, 15 Apr 2008 21:34:43 +0000]
vfs: fix possible deadlock in ext2, ext3, ext4 when using xattrs

mb_cache_entry_alloc() was allocating cache entries with GFP_KERNEL.  But
filesystems are calling this function while holding xattr_sem so possible
recursion into the fs violates locking ordering of xattr_sem and transaction
start / i_mutex for ext2-4.  Change mb_cache_entry_alloc() so that filesystems
can specify desired gfp mask and use GFP_NOFS from all of them.

Signed-off-by: Jan Kara <jack@suse.cz>
Reported-by: Dave Jones <davej@redhat.com>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoDocumentation: correct overcommit caveat in hugetlbpage.txt
Nishanth Aravamudan [Tue, 15 Apr 2008 21:34:43 +0000]
Documentation: correct overcommit caveat in hugetlbpage.txt

As shown by Gurudas Pai recently, we can put hugepages into the surplus
state (by echo 0 > /proc/sys/vm/nr_hugepages), even when
/proc/sys/vm/nr_overcommit_hugepages is 0. This is actually correct, to
allow the original goal (shrink the static pool to 0) to succeed (we are
converting hugepages to surplus because they are in use). However, the
documentation does not accurately reflect this case. Update it.

Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Acked-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoadd "Isolate" migratetype name to /proc/pagetypeinfo
KOSAKI Motohiro [Tue, 15 Apr 2008 21:34:42 +0000]
add "Isolate" migratetype name to /proc/pagetypeinfo

In a5d76b54a3f3a40385d7f76069a2feac9f1bad63 (memory unplug: page isolation by
KAMEZAWA Hiroyuki), "isolate" migratetype added.  but unfortunately, it
doesn't treat /proc/pagetypeinfo display logic.

this patch add "Isolate" to pagetype name field.

/proc/pagetype
before:
------------------------------------------------------------------------------------------------------------------------
Free pages count per migrate type at order       0      1      2      3      4      5      6      7      8      9     10
Node    0, zone      DMA, type    Unmovable      1      2      2      2      1      2      2      1      1      0      0
Node    0, zone      DMA, type  Reclaimable      0      0      0      0      0      0      0      0      0      0      0
Node    0, zone      DMA, type      Movable      2      3      3      1      3      3      2      0      0      0      0
Node    0, zone      DMA, type      Reserve      0      0      0      0      0      0      0      0      0      0      1
Node    0, zone      DMA, type       <NULL>      0      0      0      0      0      0      0      0      0      0      0
Node    0, zone   Normal, type    Unmovable      1      9      7      4      1      1      1      1      0      0      0
Node    0, zone   Normal, type  Reclaimable      5      2      0      0      1      1      0      0      0      1      0
Node    0, zone   Normal, type      Movable      0      1      1      0      0      0      1      0      0      1     60
Node    0, zone   Normal, type      Reserve      0      0      0      0      0      0      0      0      0      0      1
Node    0, zone   Normal, type       <NULL>      0      0      0      0      0      0      0      0      0      0      0
Node    0, zone  HighMem, type    Unmovable      0      0      1      1      1      0      1      1      2      2      0
Node    0, zone  HighMem, type  Reclaimable      0      0      0      0      0      0      0      0      0      0      0
Node    0, zone  HighMem, type      Movable    236     62      6      2      2      1      1      0      1      1     16
Node    0, zone  HighMem, type      Reserve      0      0      0      0      0      0      0      0      0      0      1
Node    0, zone  HighMem, type       <NULL>      0      0      0      0      0      0      0      0      0      0      0

Number of blocks type     Unmovable  Reclaimable      Movable      Reserve       <NULL>
Node 0, zone      DMA            1            0            2       1            0
Node 0, zone   Normal           10           40          169       1            0
Node 0, zone  HighMem            2            0          283       1            0

after:
------------------------------------------------------------------------------------------------------------------------
Free pages count per migrate type at order       0      1      2      3      4      5      6      7      8      9     10
Node    0, zone      DMA, type    Unmovable      1      2      2      2      1      2      2      1      1      0      0
Node    0, zone      DMA, type  Reclaimable      0      0      0      0      0      0      0      0      0      0      0
Node    0, zone      DMA, type      Movable      2      3      3      1      3      3      2      0      0      0      0
Node    0, zone      DMA, type      Reserve      0      0      0      0      0      0      0      0      0      0      1
Node    0, zone      DMA, type      Isolate      0      0      0      0      0      0      0      0      0      0      0
Node    0, zone   Normal, type    Unmovable      0      2      1      1      0      1      0      0      0      0      0
Node    0, zone   Normal, type  Reclaimable      1      1      1      1      1      0      1      1      1      0      0
Node    0, zone   Normal, type      Movable      0      1      1      1      0      1      0      1      0      0    196
Node    0, zone   Normal, type      Reserve      0      0      0      0      0      0      0      0      0      0      1
Node    0, zone   Normal, type      Isolate      0      0      0      0      0      0      0      0      0      0      0
Node    0, zone  HighMem, type    Unmovable      0      1      0      0      0      1      1      1      2      2      0
Node    0, zone  HighMem, type  Reclaimable      0      0      0      0      0      0      0      0      0      0      0
Node    0, zone  HighMem, type      Movable      1      0      1      1      0      0      0      0      1      0    200
Node    0, zone  HighMem, type      Reserve      0      0      0      0      0      0      0      0      0      0      1
Node    0, zone  HighMem, type      Isolate      0      0      0      0      0      0      0      0      0      0      0

Number of blocks type     Unmovable  Reclaimable      Movable      Reserve      Isolate
Node 0, zone      DMA            1            0            2       1            0
Node 0, zone   Normal            8            4          207       1            0
Node 0, zone  HighMem            2            0          283       1            0

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoFix typos in Documentation/filesystems/seq_file.txt
Dmitri Vorobiev [Tue, 15 Apr 2008 21:34:40 +0000]
Fix typos in Documentation/filesystems/seq_file.txt

A couple of typos crept into the newly added document about the seq_file
interface.  This patch corrects those typos and simultaneously deletes
unnecessary trailing spaces.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agouml: compile error fix
WANG Cong [Tue, 15 Apr 2008 21:34:38 +0000]
uml: compile error fix

This patch fixes this error:

In file included from /home/wangcong/projects/linux-2.6/arch/um/kernel/smp.c:9:
include2/asm/tlb.h: In function `tlb_remove_page':
include2/asm/tlb.h:101: error: implicit declaration of function `page_cache_release'

And since including <linux/pagemap.h> in <linux/swap.h> will break sparc,
we add this #include in uml's own header.

Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: WANG Cong <wangcong@zeuux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agomemcg: fix oops in oom handling
Li Zefan [Tue, 15 Apr 2008 21:34:37 +0000]
memcg: fix oops in oom handling

When I used a test program to fork mass processes and immediately move them to
a cgroup where the memory limit is low enough to trigger oom kill, I got oops:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000808
IP: [<ffffffff8045c47f>] _spin_lock_irqsave+0x8/0x18
PGD 4c95f067 PUD 4406c067 PMD 0
Oops: 0002 [1] SMP
CPU 2
Modules linked in:

Pid: 11973, comm: a.out Not tainted 2.6.25-rc7 #5
RIP: 0010:[<ffffffff8045c47f>]  [<ffffffff8045c47f>] _spin_lock_irqsave+0x8/0x18
RSP: 0018:ffff8100448c7c30  EFLAGS: 00010002
RAX: 0000000000000202 RBX: 0000000000000009 RCX: 000000000001c9f3
RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000808
RBP: ffff81007e444080 R08: 0000000000000000 R09: ffff8100448c7900
R10: ffff81000105f480 R11: 00000100ffffffff R12: ffff810067c84140
R13: 0000000000000001 R14: ffff8100441d0018 R15: ffff81007da56200
FS:  00007f70eb1856f0(0000) GS:ffff81007fbad3c0(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000808 CR3: 000000004498a000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process a.out (pid: 11973, threadinfo ffff8100448c6000, task ffff81007da533e0)
Stack:  ffffffff8023ef5a 00000000000000d0 ffffffff80548dc0 00000000000000d0
 ffff810067c84140 ffff81007e444080 ffffffff8026cef9 00000000000000d0
 ffff8100441d0000 00000000000000d0 ffff8100441d0000 ffff8100505445c0
Call Trace:
 [<ffffffff8023ef5a>] ? force_sig_info+0x25/0xb9
 [<ffffffff8026cef9>] ? oom_kill_task+0x77/0xe2
 [<ffffffff8026d696>] ? mem_cgroup_out_of_memory+0x55/0x67
 [<ffffffff802910ad>] ? mem_cgroup_charge_common+0xec/0x202
 [<ffffffff8027997b>] ? handle_mm_fault+0x24e/0x77f
 [<ffffffff8022c4af>] ? default_wake_function+0x0/0xe
 [<ffffffff8027a17a>] ? get_user_pages+0x2ce/0x3af
 [<ffffffff80290fee>] ? mem_cgroup_charge_common+0x2d/0x202
 [<ffffffff8027a441>] ? make_pages_present+0x8e/0xa4
 [<ffffffff8027d1ab>] ? mmap_region+0x373/0x429
 [<ffffffff8027d7eb>] ? do_mmap_pgoff+0x2ff/0x364
 [<ffffffff80210471>] ? sys_mmap+0xe5/0x111
 [<ffffffff8020bfc9>] ? tracesys+0xdc/0xe1

Code: 00 00 01 48 8b 3c 24 e9 46 d4 dd ff f0 ff 07 48 8b 3c 24 e9 3a d4 dd ff fe 07 48 8b 3c 24 e9 2f d4 dd ff 9c 58 fa ba 00 01 00 00 <f0> 66 0f c1 17 38 f2 74 06 f3 90 8a 17 eb f6 c3 fa b8 00 01 00
RIP  [<ffffffff8045c47f>] _spin_lock_irqsave+0x8/0x18
 RSP <ffff8100448c7c30>
CR2: 0000000000000808
---[ end trace c3702fa668021ea4 ]---

It's reproducable in a x86_64 box, but doesn't happen in x86_32.

This is because tsk->sighand is not guarded by RCU, so we have to
hold tasklist_lock, just as what out_of_memory() does.

Signed-off-by: Li Zefan <lizf@cn.fujitsu>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Pavel Emelianov <xemul@openvz.org>
Cc: Paul Menage <menage@google.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: David Rientjes <rientjes@cs.washington.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoserial: fix platform driver hotplug/coldplug
Kay Sievers [Tue, 15 Apr 2008 21:34:35 +0000]
serial: fix platform driver hotplug/coldplug

Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is
prefixed with "platform:".  Add MODULE_ALIAS() to the hotpluggable serial
platform drivers, to re-enable auto loading.

NOTE that Kconfig for some of these drivers doesn't allow modular builds, and
thus doesn't match the driver source's unload support.  Presumably their
unload code is buggy and/or weakly tested...

[dbrownell@users.sourceforge.net: more drivers, registration fixes]
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agopcmcia: fix platform driver hotplug/coldplug
Kay Sievers [Tue, 15 Apr 2008 21:34:34 +0000]
pcmcia: fix platform driver hotplug/coldplug

Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is
prefixed with "platform:".  Add MODULE_ALIAS() to the hotpluggable PCMCIA
platform drivers, to re-enable auto loading.

[dbrownell@users.sourceforge.net: registration fixes]
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agomisc: fix platform driver hotplug/coldplug
Kay Sievers [Tue, 15 Apr 2008 21:34:33 +0000]
misc: fix platform driver hotplug/coldplug

Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is
prefixed with "platform:".  Add MODULE_ALIAS() to the hotpluggable 'misc'
platform drivers, to re-enable auto loading.

[dbrownell@users.sourceforge.net:  bugfix, registration fixes]
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agofbdev: fix /proc/fb oops after module removal
Alexey Dobriyan [Tue, 15 Apr 2008 21:34:33 +0000]
fbdev: fix /proc/fb oops after module removal

/proc/fb is not removed during rmmod.

Steps to reproduce:

modprobe fb
rmmod fb
ls /proc

BUG: unable to handle kernel paging request at ffffffffa0094370
IP: [<ffffffff802b92a1>] proc_get_inode+0x101/0x130
PGD 203067 PUD 207063 PMD 17e758067 PTE 0
Oops: 0000 [1] SMP
last sysfs file: /sys/devices/pci0000:00/0000:00:1e.0/0000:05:02.0/resource
CPU 1
Modules linked in: nf_conntrack_irc xt_state iptable_filter ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack ip_tables x_tables vfat fat usbhid ehci_hcd uhci_hcd usbcore sr_mod cdrom [last unloaded: fb]
Pid: 21205, comm: ls Not tainted 2.6.25-rc8-mm2 #14
RIP: 0010:[<ffffffff802b92a1>]  [<ffffffff802b92a1>] proc_get_inode+0x101/0x130
RSP: 0018:ffff81017c4bfc78  EFLAGS: 00010246
RAX: 0000000000008000 RBX: ffff8101787f5470 RCX: 0000000048011ccc
RDX: ffffffffa0094320 RSI: ffff810006ad43b0 RDI: ffff81017fc2cc00
RBP: ffff81017e450300 R08: 0000000000000002 R09: ffff81017c5d1000
R10: 0000000000000000 R11: 0000000000000246 R12: ffff81016b903a28
R13: ffff81017f822020 R14: ffff81017c4bfd58 R15: ffff81017f822020
FS:  00007f08e71696f0(0000) GS:ffff81017fc06480(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: ffffffffa0094370 CR3: 000000017e54a000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process ls (pid: 21205, threadinfo ffff81017c4be000, task ffff81017de48770)
Stack:  ffff81017c5d1000 00000000ffffffea ffff81017e450300 ffffffff802bdd1e
 ffff81017f802258 ffff81017c4bfe48 ffff81016b903a28 ffff81017f822020
 ffff81017c4bfd48 ffffffff802b9ba0 ffff81016b903a28 ffff81017f802258
Call Trace:
 [<ffffffff802bdd1e>] ? proc_lookup_de+0x8e/0x100
 [<ffffffff802b9ba0>] ? proc_root_lookup+0x20/0x60
 [<ffffffff802882a7>] ? do_lookup+0x1b7/0x210
 [<ffffffff8028883d>] ? __link_path_walk+0x53d/0x7f0
 [<ffffffff80295eb8>] ? mntput_no_expire+0x28/0x130
 [<ffffffff80288b4a>] ? path_walk+0x5a/0xc0
 [<ffffffff80288dd3>] ? do_path_lookup+0x83/0x1c0
 [<ffffffff80287785>] ? getname+0xe5/0x210
 [<ffffffff80289adb>] ? __user_walk_fd+0x4b/0x80
 [<ffffffff8028236c>] ? vfs_lstat_fd+0x2c/0x70
 [<ffffffff8028bf1e>] ? filldir+0xae/0xf0
 [<ffffffff802b92e9>] ? de_put+0x9/0x50
 [<ffffffff8029633d>] ? mnt_want_write+0x2d/0x80
 [<ffffffff8029339f>] ? touch_atime+0x1f/0x170
 [<ffffffff802b9b1d>] ? proc_root_readdir+0x7d/0xa0
 [<ffffffff802825e7>] ? sys_newlstat+0x27/0x50
 [<ffffffff8028bffb>] ? vfs_readdir+0x9b/0xd0
 [<ffffffff8028c0fe>] ? sys_getdents+0xce/0xe0
 [<ffffffff8020b39b>] ? system_call_after_swapgs+0x7b/0x80

Code: b7 83 b2 00 00 00 25 00 f0 00 00 3d 00 80 00 00 74 19 48 89 93 f0 00 00 00 48 89 df e8 39 9a fd ff 48 89 d8 48 83 c4 08 5b 5d c3 <48> 83 7a 50 00 48 c7 c0 60 16 45 80 48 c7 c2 40 17 45 80 48 0f
RIP  [<ffffffff802b92a1>] proc_get_inode+0x101/0x130
 RSP <ffff81017c4bfc78>
CR2: ffffffffa0094370
---[ end trace c71hiarjan8ab739 ]---

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
"Antonino A. Daplas" <adaplas@pol.net>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoleds: fix platform driver hotplug/coldplug
Kay Sievers [Tue, 15 Apr 2008 21:34:30 +0000]
leds: fix platform driver hotplug/coldplug

Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform
modalias is prefixed with "platform:". Add MODULE_ALIAS() to the
hotpluggable platform LED drivers, to re-enable auto loading.

[dbrownell@users.sourceforge.net: more drivers, registration fixes]
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agortc: fix the error in the function of cmos_set_alarm
Zhao Yakui [Tue, 15 Apr 2008 21:34:29 +0000]
rtc: fix the error in the function of cmos_set_alarm

There is a bug in the function of cmos_set_alarm.  RTC alarm time for October
can't be set correctly.

For October: 0x0A will be written into the RTC region (MONTH_ALARM) in current
kernel.  But in fact 0x10 should be written.  Wildcards are also not handled
correctly.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agommc: fix platform driver hotplug/coldplug
Kay Sievers [Tue, 15 Apr 2008 21:34:28 +0000]
mmc: fix platform driver hotplug/coldplug

Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform modalias is
prefixed with "platform:".  Add MODULE_ALIAS() to the hotpluggable MMC host
platform drivers, to re-enable auto loading.

Also, add missing owner declarations in driver init.

[dbrownell@users.sourceforge.net: registration fixes]
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agomm: sparsemem memory_present() fix
Ingo Molnar [Tue, 15 Apr 2008 23:40:00 +0000]
mm: sparsemem memory_present() fix

Fix memory corruption and crash on 32-bit x86 systems.

If a !PAE x86 kernel is booted on a 32-bit system with more than 4GB of
RAM, then we call memory_present() with a start/end that goes outside
the scope of MAX_PHYSMEM_BITS.

That causes this loop to happily walk over the limit of the sparse
memory section map:

    for (pfn = start; pfn < end; pfn += PAGES_PER_SECTION) {
                unsigned long section = pfn_to_section_nr(pfn);
                struct mem_section *ms;

                sparse_index_init(section, nid);
                set_section_nid(section, nid);

                ms = __nr_to_section(section);
                if (!ms->section_mem_map)
                        ms->section_mem_map = sparse_encode_early_nid(nid) |
                                SECTION_MARKED_PRESENT;

'ms' will be out of bounds and we'll corrupt a small amount of memory by
encoding the node ID and writing SECTION_MARKED_PRESENT (==0x1) over it.

The corruption might happen when encoding a non-zero node ID, or due to
the SECTION_MARKED_PRESENT which is 0x1:

mmzone.h:#define SECTION_MARKED_PRESENT (1UL<<0)

The fix is to sanity check anything the architecture passes to
sparsemem.

This bug seems to be rather old (as old as sparsemem support itself),
but the exact incarnation depended on random details like configs, which
made this bug more prominent in v2.6.25-to-be.

An additional enhancement might be to print a warning about ignored or
trimmed memory ranges.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Tested-by: Christoph Lameter <clameter@sgi.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Yinghai Lu <Yinghai.Lu@sun.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoMerge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/linville/wireles...
David S. Miller [Wed, 16 Apr 2008 02:15:00 +0000]
Merge branch 'master' of /linux/kernel/git/linville/wireless-2.6

11 years ago[PARISC] fix signal trampoline cache flushing
Kyle McMartin [Tue, 15 Apr 2008 22:36:38 +0000]
[PARISC] fix signal trampoline cache flushing

The signal trampolines were accidently flushing the kernel I$ instead of
the users.  Fix that up, and also add a missing user D$ flush while
we're at it.

Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoFix locking bug in "acquire_console_semaphore_for_printk()"
Linus Torvalds [Tue, 15 Apr 2008 20:09:54 +0000]
Fix locking bug in "acquire_console_semaphore_for_printk()"

When I cleaned up printk() and split up the printk locking logic in
commit 266c2e0abeca649fa6667a1a427ad1da507c6375 ("Make printk() console
semaphore accesses sensible") I had incorrectly moved the call to
have_callable_console() outside of the console semaphore.

That was buggy.  The console semaphore protects the console_drivers list
that is used by have_callable_console().

Thanks go to Bongani Hlope who saw this as a hang on shutdown and reboot
and bisected the bug to the right commit, and tested this patch. See

http://lkml.org/lkml/2008/4/11/315

Bisected-and-tested-by: Bongani Hlope <bonganilinux@mweb.co.za>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoPS3: gelic: fix the oops on the broken IE returned from the hypervisor
Masakazu Mokuno [Mon, 14 Apr 2008 09:07:21 +0000]
PS3: gelic: fix the oops on the broken IE returned from the hypervisor

This fixes the bug that the driver would try to over-scan the memory
if the sum of the length field of every IEs does not match the length
returned from the hypervisor.

Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agob43legacy: fix DMA mapping leakage
Stefano Brivio [Sun, 13 Apr 2008 22:59:49 +0000]
b43legacy: fix DMA mapping leakage

This fixes a DMA mapping leakage in the case where we reject a DMA buffer
because of its address.
The patch by Michael Buesch has been ported to b43legacy.

Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it>
Cc: Christian Casteyde <casteyde.christian@free.fr>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agomac80211: remove message on receiving unexpected unencrypted frames
Johannes Berg [Sun, 13 Apr 2008 08:12:47 +0000]
mac80211: remove message on receiving unexpected unencrypted frames

Some people are getting this message a lot, and we have traced it to
broken access points that much too often send completely empty frames
(all bytes zeroed, which they shouldn't do at all.)

Since we cannot do anything about such frames in any case except the
special case where we're debugging an AP, just remove the message.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agoUpdate rt2x00 MAINTAINERS entry
Ivo van Doorn [Sat, 12 Apr 2008 17:25:00 +0000]
Update rt2x00 MAINTAINERS entry

Add the tree entry for rt2x00 to inform people about the
rt2x00.git tree.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agoAdd rfkill to MAINTAINERS file
Ivo van Doorn [Sat, 12 Apr 2008 17:23:55 +0000]
Add rfkill to MAINTAINERS file

I have been acting as the maintainer since the rfkill introduction,
so lets make it official by adding a rfkill entry in the MAINTAINERS file.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agorfkill: Fix device type check when toggling states
Carlos Corbacho [Sat, 12 Apr 2008 15:39:47 +0000]
rfkill: Fix device type check when toggling states

rfkill_switch_all() is supposed to only switch all the interfaces of a
given type, but does not actually do this; instead, it just switches
everything currently in the same state.

Add the necessary type check in.

(This fixes a bug I've been seeing while developing an rfkill laptop
driver, with both bluetooth and wireless simultaneously changing state
after only pressing either KEY_WLAN or KEY_BLUETOOTH).

Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agob43legacy: Fix usage of struct device used for DMAing
Michael Buesch [Fri, 11 Apr 2008 10:16:36 +0000]
b43legacy: Fix usage of struct device used for DMAing

This fixes b43legacy for the SSB DMA API change.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Cc: Stefano Brivio <stefano.brivio@polimi.it>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agossb: Fix usage of struct device used for DMAing
Michael Buesch [Fri, 11 Apr 2008 09:59:00 +0000]
ssb: Fix usage of struct device used for DMAing

This fixes DMA on architectures where DMA is nontrivial, like PPC64.
We must use the host-device's (PCI) struct device for any DMA
operation instead of the SSB device. For this we add a new
struct device pointer to the SSB device structure that will always
point to the right device for DMAing.

Without this patch b43 and b44 drivers won't work on complex-DMA
architectures, that for example need dev->archdata for DMA operations.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agoMAINTAINERS: move to generic repository for iwlwifi
Reinette Chatre [Thu, 10 Apr 2008 20:16:27 +0000]
MAINTAINERS: move to generic repository for iwlwifi

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agob43legacy: fix initvals loading on bcm4303
Stefano Brivio [Sun, 6 Apr 2008 15:10:53 +0000]
b43legacy: fix initvals loading on bcm4303

This allows for the correct initial values to be uploaded to bcm4303
devices. It should be correct, but I can't reliably test this as I suspect
there's something going wrong with an hardware rfkill switch on my laptop.
Please test.

Signed-off-by: Stefano Brivio <stefano.brivio@polimi.it>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agortl8187: Add missing priv->vif assignments
Herton Ronaldo Krzesinski [Wed, 9 Apr 2008 19:38:31 +0000]
rtl8187: Add missing priv->vif assignments

This adds missing priv->vif assignments after "mac80211: don't use
interface indices in drivers" change. As rtl8180, rtl8187 also needs
priv->vif to be set, as without this an oops can happen in rtl8187_tx
function (priv->vif is passed to ieee80211_rts_duration).

Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Acked-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.25
Linus Torvalds [Tue, 15 Apr 2008 18:00:05 +0000]
Merge git://git./linux/kernel/git/lethal/sh-2.6.25

* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.25:
  sh: export empty_zero_page
  sh: arch/sh/kernel/traps_32.c needs asm/fpu.h
  sh: fix compressed kernel build
  sh64: add missing #include <asm/fpu.h>'s

11 years agosh: export empty_zero_page
Andrew Morton [Tue, 15 Apr 2008 17:21:47 +0000]
sh: export empty_zero_page

ERROR: "empty_zero_page" [fs/ext4/ext4dev.ko] undefined!

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

11 years agosh: arch/sh/kernel/traps_32.c needs asm/fpu.h
Andrew Morton [Tue, 15 Apr 2008 17:03:51 +0000]
sh: arch/sh/kernel/traps_32.c needs asm/fpu.h

arch/sh/kernel/traps_32.c: In function `do_reserved_inst':
arch/sh/kernel/traps_32.c:667: error: implicit declaration of function `do_fpu_inst'

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

11 years agosh: fix compressed kernel build
Manuel Lauss [Tue, 15 Apr 2008 17:01:55 +0000]
sh: fix compressed kernel build

commit 54a015104136974262afa4b8ddd943ea70dec8a2 broke zImage build on sh arch:

 LD      vmlinux
  SYSMAP  System.map
  SYSMAP  .tmp_System.map
  AS      arch/sh/boot/compressed/head_32.o
In file included from /k/arch/sh/boot/compressed/head_32.S:11:
/k/include/linux/linkage.h:34: error: syntax error in macro parameter list

Fix it for both sh and sh64.

Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

11 years agosh64: add missing #include <asm/fpu.h>'s
Adrian Bunk [Sun, 13 Apr 2008 18:15:38 +0000]
sh64: add missing #include <asm/fpu.h>'s

This patch fixes some compile errors due to missing save_fpu()
prototypes on sh64 caused by
commit 9bbafce2eec190ef7e44b0eb1095ba17ce6ad3af
(sh: Fix occasional FPU register corruption under preempt).

Signed-off-by: Adrian Bunk <adrian.bunk@movial.fi>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

11 years agoblock: update git url for blktrace
Jens Axboe [Tue, 15 Apr 2008 08:23:35 +0000]
block: update git url for blktrace

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

11 years agonetconsole: only set CON_PRINTBUFFER if the user specifies a netconsole
Michael Ellerman [Tue, 15 Apr 2008 07:49:04 +0000]
netconsole: only set CON_PRINTBUFFER if the user specifies a netconsole

Since 0bcc1816188e570bde1d56a208996660f2633ae0 (netconsole: Support
dynamic reconfiguration using configfs), the netconsole is always
registered, regardless of whether the user actually specified a
netconsole configuration on the command line.

However because netconsole has CON_PRINTBUFFER set, when it is
registered it causes the printk buffer to be replayed to all consoles.
When there is no netconsole configured this is a) pointless, and b)
somewhat annoying for the user of the existing console.

So instead we should only set CON_PRINTBUFFER if there is a netconsole
configuration found on the command line. This retains the existing
behaviour if a netconsole is setup by the user, and avoids spamming
other consoles when we're only registering for the dynamic
netconsole case.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years ago[CAN]: Update documentation of struct sockaddr_can
Oliver Hartkopp [Tue, 15 Apr 2008 07:46:38 +0000]
[CAN]: Update documentation of struct sockaddr_can

The struct sockaddr_can has been simplified in the code review
process.  This patch updates this simplification also in the
associated documentation in can.txt .

Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years agoMAINTAINERS: isdn4linux@listserv.isdn4linux.de is subscribers-only
Paul Bolle [Tue, 15 Apr 2008 07:40:48 +0000]
MAINTAINERS: isdn4linux@listserv.isdn4linux.de is subscribers-only

https://www.isdn4linux.de/mailman/listinfo/isdn4linux: "To prevent spamming,
you have to subscribe first. Mails from non-members are silently ignored!"

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years ago[TCP]: Fix never pruned tcp out-of-order queue.
Vitaliy Gusev [Tue, 15 Apr 2008 07:33:38 +0000]
[TCP]: Fix never pruned tcp out-of-order queue.

tcp_prune_queue() doesn't prune an out-of-order queue at all.
Therefore sk_rmem_schedule() can fail but the out-of-order queue isn't
pruned . This can lead to tcp deadlock state if the next two
conditions are held:

1. There are a sequence hole between last received in
   order segment and segments enqueued to the out-of-order queue.

2. Size of all segments in the out-of-order queue is more than tcp_mem[2].

Signed-off-by: Vitaliy Gusev <vgusev@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years agoio context: increment task attachment count in ioc_task_link()
Jens Axboe [Tue, 15 Apr 2008 07:25:33 +0000]
io context: increment task attachment count in ioc_task_link()

Thanks to Nikanth Karthikesan <knikanth@suse.de> for reporting this.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

11 years agoJFFS2 Fix of panics caused by wrong condition for hole frag creation in write_begin
Alexey Korolev [Mon, 14 Apr 2008 19:45:06 +0000]
JFFS2 Fix of panics caused by wrong condition for hole frag creation in write_begin

This fixes a regression introduced in commit
205c109a7a96d9a3d8ffe64c4068b70811fef5e8 when switching to
write_begin/write_end operations in JFFS2.

The page offset is miscalculated, leading to corruption of the fragment
lists and subsequently to memory corruption and panics.

[ Side note: the bug is a fairly direct result of the naming.  Nick was
  likely misled by the use of "offs", since we tend to use the notion of
  "offset" not as an absolute position, but as an offset _within_ a page
  or allocation.

  Alternatively, a "pgoff_t" is a page index, but not a byte offset -
  our VM naming can be a bit confusing.

  So in this case, a VM person would likely have called this a "pos",
  not an "offs", or perhaps talked about byte offsets rather than page
  offsets (since it's counted in bytes, not pages).    - Linus ]

Signed-off-by: Alexey Korolev <akorolev@infradead.org>
Signed-off-by: Vasiliy Leonenko <vasiliy.leonenko@mail.ru>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years ago[NET_SCHED] sch_api: fix qdisc_tree_decrease_qlen() loop
Jarek Poplawski [Mon, 14 Apr 2008 22:10:42 +0000]
[NET_SCHED] sch_api: fix qdisc_tree_decrease_qlen() loop

TC_H_MAJ(parentid) for root classes is the same as for ingress, and if
ingress qdisc is created qdisc_lookup() returns its pointer (without
ingress NULL is returned). After this all qdisc_lookups give the same,
and we get endless loop. (I don't know how this could hide for so long
- it should trigger with every leaf class deleted if it's qdisc isn't
empty.)

After this fix qdisc_lookup() is omitted both for ingress and root
parents, but looking for root is only wasting a little time here...
Many thanks to Enrico Demarin for finding a test for catching this
bug, which probably bothered quite a lot of admins.

Reported-by: Enrico Demarin <enrico@superclick.com>,
Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years agolocks: fix possible infinite loop in fcntl(F_SETLKW) over nfs
J. Bruce Fields [Mon, 14 Apr 2008 19:03:02 +0000]
locks: fix possible infinite loop in fcntl(F_SETLKW) over nfs

Miklos Szeredi found the bug:

"Basically what happens is that on the server nlm_fopen() calls
nfsd_open() which returns -EACCES, to which nlm_fopen() returns
NLM_LCK_DENIED.

"On the client this will turn into a -EAGAIN (nlm_stat_to_errno()),
which in will cause fcntl_setlk() to retry forever."

So, for example, opening a file on an nfs filesystem, changing
permissions to forbid further access, then trying to lock the file,
could result in an infinite loop.

And Trond Myklebust identified the culprit, from Marc Eshel and I:

7723ec9777d9832849b76475b1a21a2872a40d20 "locks: factor out
generic/filesystem switch from setlock code"

That commit claimed to just be reshuffling code, but actually introduced
a behavioral change by calling the lock method repeatedly as long as it
returned -EAGAIN.

We assumed this would be safe, since we assumed a lock of type SETLKW
would only return with either success or an error other than -EAGAIN.
However, nfs does can in fact return -EAGAIN in this situation, and
independently of whether that behavior is correct or not, we don't
actually need this change, and it seems far safer not to depend on such
assumptions about the filesystem's ->lock method.

Therefore, revert the problematic part of the original commit.  This
leaves vfs_lock_file() and its other callers unchanged, while returning
fcntl_setlk and fcntl_setlk64 to their former behavior.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Tested-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Marc Eshel <eshel@almaden.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux...
Linus Torvalds [Mon, 14 Apr 2008 15:10:27 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/mingo/linux-2.6-sched-devel

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-devel:
  revert "sched: fix fair sleepers"

11 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
Linus Torvalds [Mon, 14 Apr 2008 14:57:07 +0000]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  [libata] make ali_atapi_dma static
  [libata] sata_svw: fix reversed port count

11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Mon, 14 Apr 2008 14:56:24 +0000]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (31 commits)
  [BRIDGE]: Fix crash in __ip_route_output_key with bridge netfilter
  [NETFILTER]: ipt_CLUSTERIP: fix race between clusterip_config_find_get and _entry_put
  [IPV6] ADDRCONF: Don't generate temporary address for ip6-ip6 interface.
  [IPV6] ADDRCONF: Ensure disabling multicast RS even if privacy extensions are disabled.
  [IPV6]: Use appropriate sock tclass setting for routing lookup.
  [IPV6]: IPv6 extension header structures need to be packed.
  [IPV6]: Fix ipv6 address fetching in raw6_icmp_error().
  [NET]: Return more appropriate error from eth_validate_addr().
  [ISDN]: Do not validate ISDN net device address prior to interface-up
  [NET]: Fix kernel-doc for skb_segment
  [SOCK] sk_stamp: should be initialized to ktime_set(-1L, 0)
  net: check for underlength tap writes
  net: make struct tun_struct private to tun.c
  [SCTP]: IPv4 vs IPv6 addresses mess in sctp_inet[6]addr_event.
  [SCTP]: Fix compiler warning about const qualifiers
  [SCTP]: Fix protocol violation when receiving an error lenght INIT-ACK
  [SCTP]: Add check for hmac_algo parameter in sctp_verify_param()
  [NET_SCHED] cls_u32: refcounting fix for u32_delete()
  [DCCP]: Fix skb->cb conflicts with IP
  [AX25]: Potential ax25_uid_assoc-s leaks on module unload.
  ...

11 years agoFRV: Correctly determine the address of an illegal instruction
David Howells [Mon, 14 Apr 2008 10:20:59 +0000]
FRV: Correctly determine the address of an illegal instruction

Correctly determine the address of an illegal instruction.  The EPCR0 register
holds this value (masked by EPCR0_PC) if the validity bit is set (masked by
EPCR0_V).  So the test as to whether the contents of the register are usable
should be involve checking the _V bit, not the _PC bits.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

11 years agorevert "sched: fix fair sleepers"
Ingo Molnar [Mon, 14 Apr 2008 06:50:02 +0000]
revert "sched: fix fair sleepers"

revert "sched: fix fair sleepers" (e22ecef1d2658ba54ed7d3fdb5d60829fb434c23),
because it is causing audio skipping, see:

   http://bugzilla.kernel.org/show_bug.cgi?id=10428

the patch is correct and the real cause of the skipping is not
understood (tracing makes it go away), but time has run out so we'll
revert it and re-try in 2.6.26.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

11 years ago[BRIDGE]: Fix crash in __ip_route_output_key with bridge netfilter
Patrick McHardy [Mon, 14 Apr 2008 07:46:01 +0000]
[BRIDGE]: Fix crash in __ip_route_output_key with bridge netfilter

The bridge netfilter code attaches a fake dst_entry with a pointer to a
fake net_device structure to skbs it passes up to IPv4 netfilter. This
leads to crashes when the skb is passed to __ip_route_output_key when
dereferencing the namespace pointer.

Since bridging can currently only operate in the init_net namespace,
the easiest fix for now is to initialize the nd_net pointer of the
fake net_device struct to &init_net.

Should fix bugzilla 10323: http://bugzilla.kernel.org/show_bug.cgi?id=10323

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years ago[NETFILTER]: ipt_CLUSTERIP: fix race between clusterip_config_find_get and _entry_put
Pavel Emelyanov [Mon, 14 Apr 2008 07:44:52 +0000]
[NETFILTER]: ipt_CLUSTERIP: fix race between clusterip_config_find_get and _entry_put

Consider we are putting a clusterip_config entry with the "entries"
count == 1, and on the other CPU there's a clusterip_config_find_get
in progress:

CPU1: CPU2:
clusterip_config_entry_put: clusterip_config_find_get:
if (atomic_dec_and_test(&c->entries)) {
/* true */
read_lock_bh(&clusterip_lock);
c = __clusterip_config_find(clusterip);
/* found - it's still in list */
...
atomic_inc(&c->entries);
read_unlock_bh(&clusterip_lock);

write_lock_bh(&clusterip_lock);
list_del(&c->list);
write_unlock_bh(&clusterip_lock);
...
dev_put(c->dev);

Oops! We have an entry returned by the clusterip_config_find_get,
which is a) not in list b) has a stale dev pointer.

The problems will happen when the CPU2 will release the entry - it
will remove it from the list for the 2nd time, thus spoiling it, and
will put a stale dev pointer.

The fix is to make atomic_dec_and_test under the clusterip_lock.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>

11 years ago[IPV6] ADDRCONF: Don't generate temporary address for ip6-ip6 interface.
YOSHIFUJI Hideaki [Mon, 14 Apr 2008 06:47:11 +0000]
[IPV6] ADDRCONF: Don't generate temporary address for ip6-ip6 interface.

As far as I can remember, I was going to disable privacy extensions
on all "tunnel" interfaces.  Disable it on ip6-ip6 interface as well.

Also, just remove ifdefs for SIT for simplicity.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years ago[IPV6] ADDRCONF: Ensure disabling multicast RS even if privacy extensions are disabled.
YOSHIFUJI Hideaki [Mon, 14 Apr 2008 06:42:18 +0000]
[IPV6] ADDRCONF: Ensure disabling multicast RS even if privacy extensions are disabled.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years ago[IPV6]: Use appropriate sock tclass setting for routing lookup.
YOSHIFUJI Hideaki [Mon, 14 Apr 2008 06:40:51 +0000]
[IPV6]: Use appropriate sock tclass setting for routing lookup.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years ago[IPV6]: IPv6 extension header structures need to be packed.
YOSHIFUJI Hideaki [Mon, 14 Apr 2008 06:33:52 +0000]
[IPV6]: IPv6 extension header structures need to be packed.

struct ipv6_opt_hdr is the common structure for IPv6 extension
headers, and it is common to increment the pointer to get
the real content.  On the other hand, since the structure
consists only of 1-byte next-header field and 1-byte length
field, size of that structure depends on architecture; 2 or 4.
Add "packed" attribute to get 2.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years ago[IPV6]: Fix ipv6 address fetching in raw6_icmp_error().
David S. Miller [Mon, 14 Apr 2008 06:14:15 +0000]
[IPV6]: Fix ipv6 address fetching in raw6_icmp_error().

Fixes kernel bugzilla 10437

Based almost entirely upon a patch by Dmitry Butskoy.

When deciding what raw sockets to deliver the ICMPv6
to, we should use the addresses in the ICMPv6 quoted
IPV6 header, not the top-level one.

Signed-off-by: David S. Miller <davem@davemloft.net>

11 years ago[NET]: Return more appropriate error from eth_validate_addr().
Patrick McHardy [Mon, 14 Apr 2008 05:45:40 +0000]
[NET]: Return more appropriate error from eth_validate_addr().

Paul Bolle wrote:
> http://bugzilla.kernel.org/show_bug.cgi?id=9923 would have been much easier to
> track down if eth_validate_addr() would somehow complain aloud if an address
> is invalid. Shouldn't it make at least some noise?

I guess it should return -EADDRNOTAVAIL similar to eth_mac_addr()
when validation fails.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years ago[ISDN]: Do not validate ISDN net device address prior to interface-up
Paul Bolle [Mon, 14 Apr 2008 05:44:20 +0000]
[ISDN]: Do not validate ISDN net device address prior to interface-up

Commit bada339 (Validate device addr prior to interface-up) caused a regression
in the ISDN network code, see: http://bugzilla.kernel.org/show_bug.cgi?id=9923
The trivial fix is to remove the pointer to eth_validate_addr() in the
net_device struct in isdn_net_init().

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years ago[NET]: Fix kernel-doc for skb_segment
Ben Hutchings [Mon, 14 Apr 2008 04:52:48 +0000]
[NET]: Fix kernel-doc for skb_segment

The kernel-doc comment for skb_segment is clearly wrong.  This states
what it actually does.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years ago[SOCK] sk_stamp: should be initialized to ktime_set(-1L, 0)
Eric Dumazet [Mon, 14 Apr 2008 04:39:26 +0000]
[SOCK] sk_stamp: should be initialized to ktime_set(-1L, 0)

Problem spotted by Andrew Brampton

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years agonet: check for underlength tap writes
Rusty Russell [Sun, 13 Apr 2008 01:49:30 +0000]
net: check for underlength tap writes

If the user gives a packet under 14 bytes, we'll end up reading off the end
of the skb (not oopsing, just reading off the end).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Max Krasnyanskiy <maxk@qualcomm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years agonet: make struct tun_struct private to tun.c
Rusty Russell [Sun, 13 Apr 2008 01:48:58 +0000]
net: make struct tun_struct private to tun.c

There's no reason for this to be in the header, and it just hurts
recompile time.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Max Krasnyanskiy <maxk@qualcomm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years ago[SCTP]: IPv4 vs IPv6 addresses mess in sctp_inet[6]addr_event.
Pavel Emelyanov [Sun, 13 Apr 2008 01:40:38 +0000]
[SCTP]: IPv4 vs IPv6 addresses mess in sctp_inet[6]addr_event.

All IP addresses that are present in a system are duplicated on
struct sctp_sockaddr_entry. They are linked in the global list
called sctp_local_addr_list. And this struct unions IPv4 and IPv6
addresses.

So, there can be rare case, when a sockaddr_in.sin_addr coincides
with the corresponding part of the sockaddr_in6 and the notifier
for IPv4 will carry away an IPv6 entry.

The fix is to check the family before comparing the addresses.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years ago[SCTP]: Fix compiler warning about const qualifiers
Vlad Yasevich [Sun, 13 Apr 2008 01:40:06 +0000]
[SCTP]: Fix compiler warning about const qualifiers

Fix 3 warnings about discarding const qualifiers:

net/sctp/ulpevent.c:862: warning: passing argument 1 of 'sctp_event2skb' discards qualifiers from pointer target type
net/sctp/sm_statefuns.c:4393: warning: passing argument 1 of 'SCTP_ASOC' discards qualifiers from pointer target type
net/sctp/socket.c:5874: warning: passing argument 1 of 'cmsg_nxthdr' discards qualifiers from pointer target type

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years ago[SCTP]: Fix protocol violation when receiving an error lenght INIT-ACK
Gui Jianfeng [Sun, 13 Apr 2008 01:39:34 +0000]
[SCTP]: Fix protocol violation when receiving an error lenght INIT-ACK

When receiving an error length INIT-ACK during COOKIE-WAIT,
a 0-vtag ABORT will be responsed. This action violates the
protocol apparently. This patch achieves the following things.
1 If the INIT-ACK contains all the fixed parameters, use init-tag
  recorded from INIT-ACK as vtag.
2 If the INIT-ACK doesn't contain all the fixed parameters,
  just reflect its vtag.

Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years ago[SCTP]: Add check for hmac_algo parameter in sctp_verify_param()
Wei Yongjun [Sun, 13 Apr 2008 01:39:19 +0000]
[SCTP]: Add check for hmac_algo parameter in sctp_verify_param()

RFC 4890 has the following text:

  The HMAC algorithm based on SHA-1 MUST be supported and
  included in the HMAC-ALGO parameter.

As a result, we need to check in sctp_verify_param() that HMAC_SHA1 is
present in the list.  If not, we should probably treat this as a
protocol violation.

It should also be a protocol violation if the HMAC parameter is empty.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years ago[NET_SCHED] cls_u32: refcounting fix for u32_delete()
Jarek Poplawski [Sun, 13 Apr 2008 01:37:13 +0000]
[NET_SCHED] cls_u32: refcounting fix for u32_delete()

Deleting of nonroot hnodes mostly doesn't work in u32_delete():
refcnt == 1 is expected, but such hnodes' refcnts are initialized
with 0 and charged only with "link" nodes. Now they'll start with
1 like usual. Thanks to Patrick McHardy for an improving suggestion.

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Acked-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years ago[DCCP]: Fix skb->cb conflicts with IP
Patrick McHardy [Sun, 13 Apr 2008 01:35:41 +0000]
[DCCP]: Fix skb->cb conflicts with IP

dev_queue_xmit() and the other IP output functions expect to get a skb
with clear or properly initialized skb->cb. Unlike TCP and UDP, the
dccp_skb_cb doesn't contain a struct inet_skb_parm at the beginning,
so the DCCP-specific data is interpreted by the IP output functions.
This can cause false negatives for the conditional POST_ROUTING hook
invocation, making the packet bypass the hook.

Add a inet_skb_parm/inet6_skb_parm union to the beginning of
dccp_skb_cb to avoid clashes. Also add a BUILD_BUG_ON to make
sure it fits in the cb.

[ Combined with patch from Gerrit Renker to remove two now unnecessary
  memsets of IPCB(skb)->opt ]

Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years ago[AX25]: Potential ax25_uid_assoc-s leaks on module unload.
Pavel Emelyanov [Sun, 13 Apr 2008 01:33:50 +0000]
[AX25]: Potential ax25_uid_assoc-s leaks on module unload.

The ax25_uid_free call walks the ax25_uid_list and releases entries
from it. The problem is that after the fisrt call to hlist_del_init
the hlist_for_each_entry (which hides behind the ax25_uid_for_each)
will consider the current position to be the last and will return.

Thus, the whole list will be left not freed.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years agotg3: fix MMIO for PPC 44x platforms
Sergei Shtylyov [Sun, 13 Apr 2008 01:30:58 +0000]
tg3: fix MMIO for PPC 44x platforms

The driver stores the PCI resource addresses into 'unsigned long' variable
before calling ioremap_nocache() on them. This warrants kernel oops when the
registers are accessed on PPC 44x platforms which (being 32-bit) have PCI
memory space mapped beyond 4 GB.

The arch/ppc/ kernel has a fixup in ioremap() that creates an illusion that
the PCI memory resource is mapped below 4 GB, but arch/powerpc/ code got rid
of this trick, having instead CONFIG_RESOURCES_64BIT enabled.

[ Bump driver version and release date -DaveM ]

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

11 years agoMark generic HDLC + PPP as broken.
Krzysztof Halasa [Sat, 12 Apr 2008 08:10:40 +0000]
Mark generic HDLC + PPP as broken.

PPP support in generic HDLC in Linux 2.6.25 is broken and will cause
a kernel panic when a device configured in PPP mode is activated.

It will be replaced by new PPP implementation after Linux 2.6.25 is
released.

This affects only PPP support in generic HDLC (mostly Hitachi SCA
and SCA-II based drivers, wanxl, and few others). Standalone syncppp
and async PPP support are not affected.

Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

11 years agoehea: Fix DLPAR memory add support
Thomas Klein [Fri, 4 Apr 2008 13:04:53 +0000]
ehea: Fix DLPAR memory add support

This patch fixes two weaknesses in send/receive packet handling which may
lead to kernel panics during DLPAR memory add operations.

Signed-off-by: Thomas Klein <tklein@de.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

11 years agosc92031: sysfs link missing
Stephen Hemminger [Fri, 11 Apr 2008 04:30:38 +0000]
sc92031: sysfs link missing

Add missing sysfs device association. Compile tested only -ENOHW.

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=10380

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Cc: Cesar Eduardo Barros <cesarb@cesarb.net>
Cc: <tom@sharkbay.at>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

11 years agosmc91x driver: fix bug: print warning only in interrupt mode
Sonic Zhang [Fri, 11 Apr 2008 04:30:37 +0000]
smc91x driver: fix bug: print warning only in interrupt mode

http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3956

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

11 years agoforcedeth: mac address fix
Ayaz Abdulla [Fri, 11 Apr 2008 04:30:35 +0000]
forcedeth: mac address fix

This critical patch fixes a mac address issue recently introduced.  If the
device's mac address was in correct order and the flag
NVREG_TRANSMITPOLL_MAC_ADDR_REV was set, during nv_remove the flag would get
cleared.  During next load, the mac address would get reversed because the
flag is missing.

As it has been indicated previously, the flag is cleared across a low power
transition.  Therefore, the driver should set the mac address back into the
reversed order when clearing the flag.

Also, the driver should set back the flag after a low power transition to
protect against kexec command calling nv_probe a second time.

Signed-off-by: Ayaz Abdulla <aabdulla@nvidia.com>
Cc: "Yinghai Lu" <yhlu.kernel@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>