12 years agox86: use dstapic in mp_config_acpi_legacy_irqs
Yinghai Lu [Mon, 16 Jun 2008 01:19:46 +0000]
x86: use dstapic in mp_config_acpi_legacy_irqs

so we don't get the same value multiple times.

also make mp_config_acpi_legacy_irqs more readable by moving assignments
together.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: keep MP_intsrc_info untouched if we do not update mptable
Yinghai Lu [Sat, 14 Jun 2008 08:26:41 +0000]
x86: keep MP_intsrc_info untouched if we do not update mptable

Daniel Exner reported IO-APIC enumeration breakage in linux-next.

Alexey Starikovskiy found out that it might be related to
commit 2944e16b25 "x86: update mptable".

use enable_update_mptable to decide if need check before add mp_irqs array.

Reported-by: Daniel Exner <webmaster@dragonslave.de>
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: clean up relocate_initrd
Yinghai Lu [Sat, 14 Jun 2008 03:07:03 +0000]
x86: clean up relocate_initrd

1. move that before zone_sizes_init ...
2. add free_early for one old one, otherwise it will be be reserved again
   when we init highmem.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: replace shrink_active_range() with remove_active_range()
Yinghai Lu [Sat, 14 Jun 2008 02:08:52 +0000]
x86: replace shrink_active_range() with remove_active_range()

in case we have kva before ramdisk on a node, we still need to use
those ranges.

v2: reserve_early kva ram area, in case there are holes in highmem, to avoid
    those area could be treat as free high pages.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: clean up reserve_bootmem_generic() and port it to 32-bit
Yinghai Lu [Fri, 13 Jun 2008 09:00:56 +0000]
x86: clean up reserve_bootmem_generic() and port it to 32-bit

1. add reserve_bootmem_generic for 32bit
2. change len to unsigned long
3. make early_res_to_bootmem to use it

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: make generic arch support NUMAQ, fix #2
Yinghai Lu [Tue, 10 Jun 2008 01:11:36 +0000]
x86: make generic arch support NUMAQ, fix #2

we are checking mptable early for numaq, so don't need to reserve_bootmem
for it. bootmem is not there yet.

do the same thing as 64-bit.

found it on 64g above system from 64-bit kernel kexec to 32 bit kernel with
numaq support.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: make generic arch support NUMAQ, fix
Yinghai Lu [Tue, 10 Jun 2008 00:00:15 +0000]
x86: make generic arch support NUMAQ, fix

fix typo in bigsmp switching.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: e820 merge parsing of the mem=/memmap= boot parameters
Yinghai Lu [Tue, 10 Jun 2008 19:55:54 +0000]
x86: e820 merge parsing of the mem=/memmap= boot parameters

since we now have 32-bit support for e820_register_active_regions(),
we can merge the parsing of the mem=/memmap= boot parameters.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: unify the reserve_bootmem() behavior of early_res_to_bootmem()
Ingo Molnar [Tue, 10 Jun 2008 14:38:41 +0000]
x86: unify the reserve_bootmem() behavior of early_res_to_bootmem()

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

12 years agox86: use reserve_bootmem_generic() to reserve crashkernel memory on x86_64
Bernhard Walle [Sun, 8 Jun 2008 13:46:31 +0000]
x86: use reserve_bootmem_generic() to reserve crashkernel memory on x86_64

This patch uses reserve_bootmem_generic() instead of reserve_bootmem()
to reserve the crashkernel memory on x86_64. That's necessary for NUMA
machines, see 00212fef814612245ed0261cbac8426d0c9a31a5:

  [PATCH] Fix kdump Crash Kernel boot memory reservation for NUMA machines

  This patch will fix a boot memory reservation bug that trashes memory on
  the ES7000 when loading the kdump crash kernel.

  The code in arch/x86_64/kernel/setup.c to reserve boot memory for the crash
  kernel uses the non-numa aware "reserve_bootmem" function instead of the
  NUMA aware "reserve_bootmem_generic".  I checked to make sure that no other
  function was using "reserve_bootmem" and found none, except the ones that
  had NUMA ifdef'ed out.

  I have tested this patch only on an ES7000 with NUMA on and off (numa=off)
  in a single (non-NUMA) and multi-cell (NUMA) configurations.

Signed-off-by: Amul Shah <amul.shah@unisys.com>
  Looks-good-to: Vivek Goyal <vgoyal@in.ibm.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

The switch-back to reserve_bootmem() was accidentally introduced in
5c3391f9f749023a49c64d607da4fb49263690eb when adding the BOOTMEM_EXCLUSIVE
parameter.

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86: add flags parameter to reserve_bootmem_generic()
Bernhard Walle [Sun, 8 Jun 2008 13:46:30 +0000]
x86: add flags parameter to reserve_bootmem_generic()

This patch adds a 'flags' parameter to reserve_bootmem_generic() like it
already has been added in reserve_bootmem() with commit
72a7fe3967dbf86cb34e24fbf1d957fe24d2f246.

It also changes all users to use BOOTMEM_DEFAULT, which doesn't effectively
change the behaviour. Since the change is x86-specific, I don't think it's
necessary to add a new API for migration. There are only 4 users of that
function.

The change is necessary for the next patch, using reserve_bootmem_generic()
for crashkernel reservation.

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoMerge branch 'linus' into tmp.x86.mpparse.new
Ingo Molnar [Tue, 8 Jul 2008 08:32:56 +0000]
Merge branch 'linus' into tmp.x86.mpparse.new

12 years agoMerge branch 'kvm-updates-2.6.26' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 6 Jul 2008 18:16:23 +0000]
Merge branch 'kvm-updates-2.6.26' of git://git./linux/kernel/git/avi/kvm

* 'kvm-updates-2.6.26' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm:
  KVM: IOAPIC: Fix level-triggered irq injection hang
  x86: KVM guest: Add memory clobber to hypercalls

12 years agopxamci: fix byte aligned DMA transfers
Philipp Zabel [Sat, 5 Jul 2008 23:15:34 +0000]
pxamci: fix byte aligned DMA transfers

The pxa27x DMA controller defaults to 64-bit alignment. This caused
the SCR reads to fail (and, depending on card type, error out) when
card->raw_scr was not aligned on a 8-byte boundary.

For performance reasons all scatter-gather addresses passed to
pxamci_request should be aligned on 8-byte boundaries, but if
this can't be guaranteed, byte aligned DMA transfers in the
have to be enabled in the controller to get correct behaviour.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoRevert "USB: don't explicitly reenable root-hub status interrupts"
Linus Torvalds [Sun, 6 Jul 2008 17:27:25 +0000]
Revert "USB: don't explicitly reenable root-hub status interrupts"

This reverts commit e872154921a6b5256a3c412dd69158ac0b135176.

Andrey Borzenkov reports that it resulted in a totally hung machine for
him when loading the OHCI driver.  Extensive netconsole capture with
SysRq output shows that modprobe gets stuck in ohci_hub_status_data()
when probing and enabling the OHCI controller, see for example

http://lkml.org/lkml/2008/7/5/236

for an analysis.

The problem appears to be an interrupt flood triggered by the commit
that gets reverted, and Andrey confirmed that the revert makes things
work for him again.

Reported-and-tested-by: Andrey Borzenkov <arvidjaar@mail.ru>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: David Brownell <david-b@pacbell.net>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoKVM: IOAPIC: Fix level-triggered irq injection hang
Mark McLoughlin [Fri, 4 Jul 2008 17:23:15 +0000]
KVM: IOAPIC: Fix level-triggered irq injection hang

The "remote_irr" variable is used to indicate an interrupt
which has been received by the LAPIC, but not acked.

In our EOI handler, we unset remote_irr and re-inject the
interrupt if the interrupt line is still asserted.

However, we do not set remote_irr here, leading to a
situation where if kvm_ioapic_set_irq() is called, then we go
ahead and call ioapic_service(). This means that IRR is
re-asserted even though the interrupt is currently in service
(i.e. LAPIC IRR is cleared and ISR/TMR set)

The issue with this is that when the currently executing
interrupt handler finishes and writes LAPIC EOI, then TMR is
unset and EOI sent to the IOAPIC. Since IRR is now asserted,
but TMR is not, then when the second interrupt is handled,
no EOI is sent and if there is any pending interrupt, it is
not re-injected.

This fixes a hang only seen while running mke2fs -j on an
8Gb virtio disk backed by a fully sparse raw file, with
aliguori "avoid fragmented virtio-blk transfers by copying"
changes.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Acked-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

12 years agox86: KVM guest: Add memory clobber to hypercalls
Anthony Liguori [Thu, 3 Jul 2008 16:02:36 +0000]
x86: KVM guest: Add memory clobber to hypercalls

Hypercalls can modify arbitrary regions of memory.  Make sure to indicate this
in the clobber list.  This fixes a hang when using KVM_GUEST kernel built with
GCC 4.3.0.

This was originally spotted and analyzed by Marcelo.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

12 years agoLinux 2.6.26-rc9
Linus Torvalds [Sat, 5 Jul 2008 22:53:22 +0000]
Linux 2.6.26-rc9

12 years agoFix pagemap_read() use of struct mm_walk
Andrew Morton [Sat, 5 Jul 2008 08:02:01 +0000]
Fix pagemap_read() use of struct mm_walk

Fix some issues in pagemap_read noted by Alexey:

- initialize pagemap_walk.mm to "mm" , so the code starts working as
  advertised

- initialize ->private to "&pm" so it wouldn't immediately oops in
  pagemap_pte_hole()

- unstatic struct pagemap_walk, so two threads won't fsckup each other
  (including those started by root, including flipping ->mm when you don't
  have permissions)

- pagemap_read() contains two calls to ptrace_may_attach(), second one
  looks unneeded.

- avoid possible kmalloc(0) and integer wraparound.

Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
[ Personally, I'd just remove the functionality entirely  - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoMove _RET_IP_ and _THIS_IP_ to include/linux/kernel.h
Eduard - Gabriel Munteanu [Sat, 5 Jul 2008 09:14:23 +0000]
Move _RET_IP_ and _THIS_IP_ to include/linux/kernel.h

These two macros are useful beyond lock debugging. Moved definitions from
include/linux/debug_locks.h to include/linux/kernel.h, so code that needs
them does not have to include the former, which would have been a less
intuitive choice of a header.

Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoMerge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 5 Jul 2008 20:09:31 +0000]
Merge branch 'core-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  softlockup: print a module list on being stuck

12 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 5 Jul 2008 20:08:38 +0000]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86 ACPI: fix resume from suspend to RAM on uniprocessor x86-64
  x86 ACPI: normalize segment descriptor register on resume

12 years agoFix clear_refs_write() use of struct mm_walk
Andrew Morton [Sat, 5 Jul 2008 19:29:05 +0000]
Fix clear_refs_write() use of struct mm_walk

Don't use a static entry, so as to prevent races during concurrent use
of this function.

Reported-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
Linus Torvalds [Sat, 5 Jul 2008 20:06:19 +0000]
Merge git://git./linux/kernel/git/bart/ide-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
  ide: ide_unregister() locking bugfix
  ide: ide_unregister() warm-plug bugfix
  ide: fix hwif->gendev refcounting

12 years agoahci: give another shot at clearing all bits in irq_stat
Tejun Heo [Sat, 5 Jul 2008 04:10:50 +0000]
ahci: give another shot at clearing all bits in irq_stat

Commit ea0c62f7cf70f13a67830471b613337bd0c9a62e tried to clear all
bits in irq_stat but it didn't actually achieve that as irq_stat was
anded with port_map right after read.  This patch makes ahci driver
always use the unmasked value to clear irq_status.

While at it, add explanation on the peculiarities of ahci IRQ
clearing.

This was spotted by Linus Torvalds.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoide: ide_unregister() locking bugfix
Bartlomiej Zolnierkiewicz [Sat, 5 Jul 2008 18:30:51 +0000]
ide: ide_unregister() locking bugfix

Holding ide_lock for ide_release_dma_engine() call is unnecessary
and triggers WARN_ON(irqs_disabled()) in dma_free_coherent().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

12 years agoide: ide_unregister() warm-plug bugfix
Bartlomiej Zolnierkiewicz [Sat, 5 Jul 2008 18:30:51 +0000]
ide: ide_unregister() warm-plug bugfix

Fix ide_unregister() to work for ports with no devices attached to them.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

12 years agoide: fix hwif->gendev refcounting
Bartlomiej Zolnierkiewicz [Sat, 5 Jul 2008 18:30:51 +0000]
ide: fix hwif->gendev refcounting

class->dev_release is called by device_release() iff dev->release
is not present so ide_port_class_release() is never called and the
last hwif->gendev reference is not dropped.

Fix it by removing ide_port_class_release() and get_device() call
from ide_register_port() (device_create_drvdata() takes a hwif->gendev
reference anyway).

This patch fixes hang on wait_for_completion(&hwif->gendev_rel_comp)
in ide_unregister() reported by Pavel Machek.

Cc: Pavel Machek <pavel@suse.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

12 years agosoftlockup: print a module list on being stuck
Arjan van de Ven [Mon, 16 Jun 2008 22:51:08 +0000]
softlockup: print a module list on being stuck

Most places in the kernel that go BUG: print a module list
(which is very useful for doing statistics and finding patterns),
however the softlockup detector does not do this yet.

This patch adds the one line change to fix this gap.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agoMerge branch 'x86/s2ram-fix' into x86/urgent
Ingo Molnar [Sat, 5 Jul 2008 06:42:45 +0000]
Merge branch 'x86/s2ram-fix' into x86/urgent

12 years agox86 ACPI: fix resume from suspend to RAM on uniprocessor x86-64
Rafael J. Wysocki [Fri, 4 Jul 2008 22:05:30 +0000]
x86 ACPI: fix resume from suspend to RAM on uniprocessor x86-64

Since the trampoline code is now used for ACPI resume from suspend to RAM,
the trampoline page tables have to be fixed up during boot not only on SMP
systems, but also on UP systems that use the trampoline.

Reference: http://bugzilla.kernel.org/show_bug.cgi?id=10923

Reported-by: Dionisus Torimens <djtm@gmx.net>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: pm list <linux-pm@lists.linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agox86 ACPI: normalize segment descriptor register on resume
H. Peter Anvin [Tue, 24 Jun 2008 21:03:48 +0000]
x86 ACPI: normalize segment descriptor register on resume

Some Dell laptops enter resume with apparent garbage in the segment
descriptor registers (almost certainly the result of a botched
transition from protected to real mode.)  The only way to clean that
up is to enter protected mode ourselves and clean out the descriptor
registers.

This fixes resume on Dell XPS M1210 and Dell D620.

Reference: http://bugzilla.kernel.org/show_bug.cgi?id=10927

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: pm list <linux-pm@lists.linux-foundation.org>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Tested-by: Kirill A. Shutemov <kirill@shutemov.name>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years agomempolicy: mask off internal flags for userspace API
David Rientjes [Fri, 4 Jul 2008 19:24:13 +0000]
mempolicy: mask off internal flags for userspace API

Flags considered internal to the mempolicy kernel code are stored as part
of the "flags" member of struct mempolicy.

Before exposing a policy type to userspace via get_mempolicy(), these
internal flags must be masked.  Flags exposed to userspace, however,
should still be returned to the user.

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 4 Jul 2008 17:46:46 +0000]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  xen: fix address truncation in pte mfn<->pfn conversion
  arch/x86/mm/init_64.c: early_memtest(): fix types
  x86: fix Intel Mac booting with EFI

12 years agommc: don't use DMA on newer ENE controllers
Pierre Ossman [Fri, 4 Jul 2008 10:51:20 +0000]
mmc: don't use DMA on newer ENE controllers

Even the newer ENE controllers have bugs in their DMA engine that make
it too dangerous to use. Disable it until someone has figured out under
which conditions it corrupts data.

This has caused problems at least once, and can be found as bug report
10925 in the kernel bugzilla.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agodoc: document the relax_domain_level kernel boot argument
Paul Jackson [Fri, 4 Jul 2008 17:00:09 +0000]
doc: document the relax_domain_level kernel boot argument

Document the kernel boot parameter: relax_domain_level=.

Signed-off-by: Paul Jackson <pj@sgi.com>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Reviewed-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agodevcgroup: fix odd behaviour when writing 'a' to devices.allow
Li Zefan [Fri, 4 Jul 2008 17:00:07 +0000]
devcgroup: fix odd behaviour when writing 'a' to devices.allow

 # cat /devcg/devices.list
 a *:* rwm
 # echo a > devices.allow
 # cat /devcg/devices.list
 a *:* rwm
 a 0:0 rwm

This is odd and maybe confusing.  With this patch, writing 'a' to
devices.allow will add 'a *:* rwm' to the whitelist.

Also a few fixes and updates to the document.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Serge E. Hallyn <serue@us.ibm.com>
Cc: Paul Menage <menage@google.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: James Morris <jmorris@namei.org>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoUpdate MAINTAINERS file for the TPM device driver
Rajiv Andrade [Fri, 4 Jul 2008 17:00:06 +0000]
Update MAINTAINERS file for the TPM device driver

Acked-By: Debora Velarde <debora@linux.vnet.ibm.com>
Cc: <zohar@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agomm: switch node meminfo Active & Inactive pages to Kbytes
John Blackwood [Fri, 4 Jul 2008 17:00:05 +0000]
mm: switch node meminfo Active & Inactive pages to Kbytes

There is a bug in the output of /sys/devices/system/node/node[n]/meminfo
where the Active and Inactive values are in pages instead of Kbytes.

Looks like this occurred back in 2.6.20 when the code was changed
over to use node_page_state().

Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agocpumask: introduce new APIs
Stephen Rothwell [Fri, 4 Jul 2008 17:00:05 +0000]
cpumask: introduce new APIs

In linux-next there is a commit ("x86: Add performance variants of cpumask
operators") which, as part of the 4096 cpu support work adds some new APIs
for dealing with cpu masks.  Add trivial versions of these now so that
subsystems can update in a timely manner and avoid conflicts in linux-next
and the next merge window.

Cc: Mike Travis <travis@sgi.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoolpc: sdhci: add quirk for the Marvell CaFe's interrupt timeout
Andres Salomon [Fri, 4 Jul 2008 17:00:04 +0000]
olpc: sdhci: add quirk for the Marvell CaFe's interrupt timeout

The CaFe chip has a hardware bug that ends up with us getting a timeout
value that's too small, causing the following sorts of problems:

[   60.525138] mmcblk0: error -110 transferring data
[   60.531477] end_request: I/O error, dev mmcblk0, sector 1484353
[   60.533371] Buffer I/O error on device mmcblk0p2, logical block 181632
[   60.533371] lost page write due to I/O error on mmcblk0p2

Presumably this is an off-by-one error in the hardware.  Incrementing
the timeout count value that we stuff into the TIMEOUT_CONTROL register
gets us a value that works.  This bug was originally discovered by
Pierre Ossman, I believe.

[thanks to Robert Millan for proving that this was still a problem]

Signed-off-by: Andres Salomon <dilinger@debian.org>
Cc: Pierre Ossman <drzeus-list@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoolpc: sdhci: add quirk for the Marvell CaFe's vdd/powerup issue
Andres Salomon [Fri, 4 Jul 2008 17:00:03 +0000]
olpc: sdhci: add quirk for the Marvell CaFe's vdd/powerup issue

This has been sitting around unloved for way too long..

The Marvell CaFe chip's SD implementation chokes during card insertion
if one attempts to set the voltage and power up in the same
SDHCI_POWER_CONTROL register write.  This adds a quirk that does
that particular dance in two steps.

It also adds an entry to pci_ids.h for the CaFe chip's SD device.

Signed-off-by: Andres Salomon <dilinger@debian.org>
Cc: Pierre Ossman <drzeus-list@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agocciss: read config to obtain max outstanding commands per controller
Mike Miller [Fri, 4 Jul 2008 17:00:02 +0000]
cciss: read config to obtain max outstanding commands per controller

This patch changes the way we determine the maximum number of outstanding
commands for each controller.

Most Smart Array controllers can support up to 1024 commands, the notable
exceptions are the E200 and E200i.

The next generation of controllers which were just added support a mode of
operation called Zero Memory Raid (ZMR).  In this mode they only support
64 outstanding commands.  In Full Function Raid (FFR) mode they support
1024.

We have been setting the queue depth by arbitrarily assigning some value
for each controller.  We needed a better way to set the queue depth to
avoid lots of annoying "fifo full" messages.  So we made the driver a
little smarter.  We now read the config table and subtract 4 from the
returned value.  The -4 is to allow some room for ioctl calls which are
not tracked the same way as io commands are tracked.

Please consider this for inclusion.

Signed-off-by: Mike Miller <mike.miller@hp.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoMAINTAINERS: update the email address of Andreas Dilger
Geert Uytterhoeven [Fri, 4 Jul 2008 17:00:01 +0000]
MAINTAINERS: update the email address of Andreas Dilger

The old one bounces.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Andreas Dilger <adilger@sun.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agocpusets: document proc status cpus and mems allowed lists
Paul Jackson [Fri, 4 Jul 2008 17:00:01 +0000]
cpusets: document proc status cpus and mems allowed lists

Provide a little documentation for the two new fields, Cpus_allowed_list
and Mems_allowed_list, that were added to each /proc/<pid>/status file a
while back.

Signed-off-by: Paul Jackson <pj@sgi.com>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoAlpha Linux kernel fails with inconsistent kallsyms data
Bastian Blank [Fri, 4 Jul 2008 17:00:00 +0000]
Alpha Linux kernel fails with inconsistent kallsyms data

The build of the Alpha Linux kernel currently fails[1] with inconsistent
kallsyms data.  As I never saw that before, I thought about hardware
problems.  But in fact it is a bug in the Linux kernel.

The end of the rodata section is marked with the "__end_rodata" symbol.
This symbol have different aligning constraints than the inittext parts
and therefor the start marked "_sinittext".  Because of that the
__end_rodata symbol shifts between < _sinittext and == _sinittext.  The
later variant is seen as a code symbol and recorded in the kallsyms data.

On fix would be to move the exception table a little bit and get some
space between that two areas.

[1]: http://buildd.debian.org/fetch.cgi?pkg=linux-2.6&arch=alpha&ver=2.6.25-5&stamp=1213919009&file=log&as=raw

Cc: maximilian attems <max@stro.at>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agosecurity: filesystem capabilities: fix CAP_SETPCAP handling
Andrew G. Morgan [Fri, 4 Jul 2008 16:59:59 +0000]
security: filesystem capabilities: fix CAP_SETPCAP handling

The filesystem capability support meaning for CAP_SETPCAP is less powerful
than the non-filesystem capability support.  As such, when filesystem
capabilities are configured, we should not permit CAP_SETPCAP to 'enhance'
the current process through strace manipulation of a child process.

Signed-off-by: Andrew G. Morgan <morgan@kernel.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agosecurity: filesystem capabilities: fix fragile setuid fixup code
Andrew G. Morgan [Fri, 4 Jul 2008 16:59:58 +0000]
security: filesystem capabilities: fix fragile setuid fixup code

This commit includes a bugfix for the fragile setuid fixup code in the
case that filesystem capabilities are supported (in access()).  The effect
of this fix is gated on filesystem capability support because changing
securebits is only supported when filesystem capabilities support is
configured.)

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Andrew G. Morgan <morgan@kernel.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agodoc: doc maintainers
Randy Dunlap [Fri, 4 Jul 2008 16:59:57 +0000]
doc: doc maintainers

Maintain the kernel's Documentation/ tree.

This includes tree layout and contents, although not much in terms of new
content production.  That will usually have to be done by someone familiar
with the software, at least in some rough form.

Includes review and editorial assistance for people contributing changes
to /Documentation.

Also includes prodding people for content if something is in need of
documentation.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agospi: fix the read path in spidev
Sebastian Siewior [Fri, 4 Jul 2008 16:59:56 +0000]
spi: fix the read path in spidev

This got broken by the recent "fix rmmod $spi_driver while spidev-user is
active".  I tested the rmmod & write path but didn't check the read path.
I am sorry.  The read logic changed and spidev_sync_read() +
spidev_sync_write() do not return zero on success anymore but the number
of bytes that has been transfered over the bus.  This patch changes the
logic and copy_to_user() gets called again.

The write path returns the number of bytes which are written to the
underlying device what may be less than the requested size.  This patch
makes the same change to the read path or else we request a read of 20
bytes, get 10, don't call copy to user and report to the user that we read
10 bytes.

[akpm@linux-foundation.org: remove test of known-to-be-zero local]
Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Acked-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>

12 years agocgroups: document the effect of attaching PID 0 to a cgroup
Li Zefan [Fri, 4 Jul 2008 16:59:55 +0000]
cgroups: document the effect of attaching PID 0 to a cgroup

Document that a pid of zero(0) can be used to refer to the current task
when attaching a task to a cgroup, as in the following usage:

# echo 0 > /dev/cgroup/tasks

This is consistent with existing cpuset behavior.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Paul Jackson <pj@sgi.com>
Acked-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>
Cc: Paul Menage <menage@google.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Andrea Righi <righi.andrea@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoMFD maintainer
Samuel Ortiz [Fri, 4 Jul 2008 16:59:53 +0000]
MFD maintainer

We probably need someone to look after the few drivers/mfd patches coming
every now and then.  As agreed with Andrew, I'm ok to do so and my
employer is fine with me spending a few working hours on it, if needed.
Ben, Philipp, feel free to add your names there too if you wish.

Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
Cc: "pHilipp Zabel" <philipp.zabel@gmail.com>
Cc: Ian Molton <spyro@f2s.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Dmitry Baryshkov <dbaryshkov@gmail.com>
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>

12 years agow100fb: add 80 MHz modeline
Philipp Zabel [Fri, 4 Jul 2008 16:59:53 +0000]
w100fb: add 80 MHz modeline

This is needed for HTC Blueangel (w3200).  At 96MHz its screen flickers.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Acked-by: Ian Molton <spyro@f2s.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agow100fb: do not depend on SHARPSL
Philipp Zabel [Fri, 4 Jul 2008 16:59:52 +0000]
w100fb: do not depend on SHARPSL

Apart from Sharp SL-Cxx series, there are a few other devices that have
ATI Imageon chips, among them HP iPAQ hx4700.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Acked-by: Ian Molton <spyro@f2s.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoadd kernel-doc for simple_read_from_buffer and memory_read_from_buffer
Akinobu Mita [Fri, 4 Jul 2008 16:59:51 +0000]
add kernel-doc for simple_read_from_buffer and memory_read_from_buffer

Add kernel-doc comments describing simple_read_from_buffer and
memory_read_from_buffer.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "Randy.Dunlap" <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agontfs: update help text
Jess Guerrero [Fri, 4 Jul 2008 16:59:50 +0000]
ntfs: update help text

The url in the help text for ntfs should be updated.

Acked-by: Anton Altaparmakov <aia21@cantab.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoman-pages is supported
Michael Kerrisk [Fri, 4 Jul 2008 16:59:49 +0000]
man-pages is supported

Starting last month, I reached a long-time goal: man-pages finally has a
paid, full-time maintainer, thanks to a fellowship from the Linux
Foundation.  It's still a little unclear how long the LF money will last
for the fellowship, but for the foreseeable future, I'll be working on:

* Properly documenting every new Linux kernel-userland (and glibc) API,
  and every API change, that is released into the mainline kernel, ideally
  before actual release.  (That's the ideal, but there's a quite a
  backlog, so I'm not going to achieve the ideal immediately.)

* Testing new APIs, again ideally before they are released into the
  mainline kernel, and probably doing some light bug fixing while I'm at
  it (e.g., the recent utimensat() work).

* Design review of new APIs, which of course can only usefully be done
  before they are released into the mainline kernel.

* And of course accepting patches and dealing with bug reports for
  existing man pages.

Signed-off-by: Michael Kerrisk <mtk.manpages@googlemail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoIntroduce rculist.h
Stephen Rothwell [Fri, 4 Jul 2008 16:59:48 +0000]
Introduce rculist.h

In linux-next there is a commit ("rcu: split list.h and move rcu-protected
lists into rculist.h") that moved the rcu related list iterators from
list.h to rculist.h.  Add a trivial version of the file now so that
various subsystem trees can start using it now for -next changes and so
reduce the build errors caused by adding uses of the moved functions.

Cc: Franck Bui-Huu <fbuihuu@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Josh Triplett <josh@kernel.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agomn10300: provide __ucmpdi2() for MN10300
David Howells [Fri, 4 Jul 2008 16:59:47 +0000]
mn10300: provide __ucmpdi2() for MN10300

Provide __ucmpdi2() for MN10300 so that allmodconfig can be built.

Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agomn10300: export certain arch symbols required to build allmodconfig
David Howells [Fri, 4 Jul 2008 16:59:46 +0000]
mn10300: export certain arch symbols required to build allmodconfig

Export kernel_thread() and empty_zero_page so that allmodconfig can be
built for MN10300.

Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agohdaps: add support for various newer Lenovo thinkpads
maximilian attems [Fri, 4 Jul 2008 16:59:43 +0000]
hdaps: add support for various newer Lenovo thinkpads

Adds R61, T61p, X61s, X61, Z61m, Z61p models to whitelist.

Fixes this:

cullen@lenny:~$ sudo modprobe hdaps
FATAL: Error inserting hdaps (/lib/modules/2.6.22-10-generic/kernel/drivers/hwmon/hdaps.ko): No such device

[25192.888000] hdaps: supported laptop not found!
[25192.888000] hdaps: driver init failed (ret=-19)!

Originally based on an Ubuntu patch that got it wrong, the dmidecode
output of the corresponding laptops shows LENOVO as the manufacturer.
https://bugs.launchpad.net/ubuntu/+source/linux-source-2.6.22/+bug/133636

tested on X61s:
[  184.893588] hdaps: inverting axis readings.
[  184.893588] hdaps: LENOVO ThinkPad X61s detected.
[  184.893588] input: hdaps as /class/input/input12
[  184.924326] hdaps: driver successfully loaded.

Cc: Klaus S. Madsen <ubuntu@hjernemadsen.org>
Cc: Chuck Short <zulcss@ubuntu.com>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: maximilian attems <max@stro.at>
Cc: Mark M. Hoffman <mhoffman@lightlink.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoDoc*/kernel-parameters.txt: fix stale references
Pavel Machek [Fri, 4 Jul 2008 16:59:43 +0000]
Doc*/kernel-parameters.txt: fix stale references

Fix stale references to source files in kernel-parameters.txt.

Signed-off-by: Pavel Machek <pavel@suse.cz>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agodelay accounting: maintainer update
Balbir Singh [Fri, 4 Jul 2008 16:59:42 +0000]
delay accounting: maintainer update

Update the delay accounting and taskstats maintainer to Balbir Singh.
I spoke to Shailabh and he is now busy with other things.

Cc: Shailabh Nagar <nagar1234@in.ibm.com>
Cc: Shailabh Nagar <nagar@watson.ibm.com>
Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agocciss: fix regression that no device nodes are created if no logical drives are confi...
Stephen M. Cameron [Fri, 4 Jul 2008 16:59:40 +0000]
cciss: fix regression that no device nodes are created if no logical drives are configured.

Fix regression in cciss driver that if no logical drives are configured,
no device nodes at all get created.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cca.cpqcorp.net>
Acked-by: Mike Miller <mike.miller@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoUpdate taskstats-struct document for scaled time accounting
Hiroshi Shimamoto [Fri, 4 Jul 2008 16:59:39 +0000]
Update taskstats-struct document for scaled time accounting

Update Documentation/accounting/taskstats-struct.txt for TASKSTATS_VERSION 6,
adding scaled time accounting.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agofsl_diu_fb: fix build with CONFIG_PM=y, plus fix some warnings
Anton Vorontsov [Fri, 4 Jul 2008 16:59:38 +0000]
fsl_diu_fb: fix build with CONFIG_PM=y, plus fix some warnings

This patch fixes following build error when CONFIG_PM is set.

CC drivers/video/fsl-diu-fb.o
drivers/video/fsl-diu-fb.c: In function 'fsl_diu_suspend':
drivers/video/fsl-diu-fb.c:1327: error: 'ofdev' undeclared (first use in this function)
drivers/video/fsl-diu-fb.c:1327: error: (Each undeclared identifier is reported only once
drivers/video/fsl-diu-fb.c:1327: error: for each function it appears in.)
drivers/video/fsl-diu-fb.c: In function 'fsl_diu_resume':
drivers/video/fsl-diu-fb.c:1337: error: 'ofdev' undeclared (first use in this function)

While I'm at it, also fix this warning:

drivers/video/fsl-diu-fb.c: In function 'fsl_diu_alloc':
drivers/video/fsl-diu-fb.c:314: warning: format '%lx' expects type 'long unsigned int', but argument 3 has type 'phys_addr_t'

And these section mismatches:

..from the function fsl_diu_remove() to the function .exit.text:uninstall_fb()
..from the function fsl_diu_remove() to the function .exit.text:uninstall_fb()
..from the function install_fb() to the variable .devinit.data:fsl_diu_mode_db
..from the function install_fb() to the variable .devinit.data:fsl_diu_mode_db
..from the function fsl_diu_probe() to the function .exit.text:uninstall_fb()
..from the function fsl_diu_probe() to the function .exit.text:uninstall_fb()

Also, some sparse fixes: make two functions static, and use NULL where
appropriate. There are still a lot of sparse warnings, mainly wrt absence
of __iomem annotations, but some will require ugly __force stuff. I'll leave
them for now, since proper fix would be not that trivial as few one-liners
below.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Timur Tabi <timur@freescale.com>
Cc: Antonino Daplas <adaplas@gmail.com>
Cc: York Sun <yorksun@freescale.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agogpio: pca953x (i2c) handles max7310 too
David Brownell [Fri, 4 Jul 2008 16:59:37 +0000]
gpio: pca953x (i2c) handles max7310 too

The pca953x driver can handle another 8-bit I/O expander, the max7310.
This patch adds that chip to the list of supported IDs in that driver, and
expands the Kconfig helptext accordingly.

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>

12 years agolib: taint kernel in common report_bug() WARN path.
Paul Mundt [Fri, 4 Jul 2008 16:59:36 +0000]
lib: taint kernel in common report_bug() WARN path.

Commit 95b570c9cef3b12356454c7112571b7e406b4b51 ("Taint kernel after
WARN_ON(condition)") introduced a TAINT_WARN that was implemented for
all architectures using the generic warn_on_slowpath(), which excluded
any architecture that set HAVE_ARCH_WARN_ON.

As all of the architectures that implement their own WARN_ON() all go
through the report_bug() path (specifically handling BUG_TRAP_TYPE_WARN),
taint the kernel there as well for consistency.

Tested on avr32 and sh. Also relevant for s390, parisc, and powerpc.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Kyle McMartin <kyle@mcmartin.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoecryptfs: remove unnecessary mux from ecryptfs_init_ecryptfs_miscdev()
Michael Halcrow [Fri, 4 Jul 2008 16:59:35 +0000]
ecryptfs: remove unnecessary mux from ecryptfs_init_ecryptfs_miscdev()

The misc_mtx should provide all the protection required to keep the daemon
hash table sane during miscdev registration.  Since this mutex is causing
gratuitous lockdep warnings, this patch removes it.

Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Reported-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoreiserfs: add missing unlock to an error path in reiserfs_quota_write()
Jan Kara [Fri, 4 Jul 2008 16:59:34 +0000]
reiserfs: add missing unlock to an error path in reiserfs_quota_write()

When write in reiserfs_quota_write() fails, we have to properly release
i_mutex. One error path has been missing the unlock...

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoext4: add missing unlock to an error path in ext4_quota_write()
Jan Kara [Fri, 4 Jul 2008 16:59:34 +0000]
ext4: add missing unlock to an error path in ext4_quota_write()

When write in ext4_quota_write() fails, we have to properly release
i_mutex.  One error path has been missing the unlock...

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoext3: add missing unlock to error path in ext3_quota_write()
Jan Kara [Fri, 4 Jul 2008 16:59:33 +0000]
ext3: add missing unlock to error path in ext3_quota_write()

When write in ext3_quota_write() fails, we have to properly release
i_mutex.  One error path has been missing the unlock...

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoMiguel Ojeda has moved
Miguel Ojeda [Fri, 4 Jul 2008 16:59:33 +0000]
Miguel Ojeda has moved

Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agopci: VT3336 can't do MSI either
Tejun Heo [Fri, 4 Jul 2008 16:59:32 +0000]
pci: VT3336 can't do MSI either

It seems VT3336 can't do msi either as with its bro 3351.  Disable it.
Reported in the following SUSE bug.

  https://bugzilla.novell.com/show_bug.cgi?id=300001

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agortc: fix CMOS time error after writing /proc/acpi/alarm
Huacai Chen [Fri, 4 Jul 2008 16:59:31 +0000]
rtc: fix CMOS time error after writing /proc/acpi/alarm

When writing /proc/acpi/alarm in adjust mode, e.g.
echo "+0000-00-00 00:00:15" >/proc/acpi/alarm
The "century" field should be read and added to "year" field before
writing, otherwise the CMOS time will go back to 2000 years ago, e.g.
# cat /proc/acpi/alarm
0008-06-21 11:38:46
Then the system time may be reset to the date of manufacture after
rebooting. This patch fixed this issue.

Signed-off-by: Huacai Chen <huacai.chen@intel.com>
Acked-by: Pavel Machek <pavel@suse.cz>
Acked-by: Zhao Yakui <yakui.zhao@intel.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Acked-by: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agortc-x1205: Fix alarm set
Michael Hamel [Fri, 4 Jul 2008 16:59:30 +0000]
rtc-x1205: Fix alarm set

I have discovered that the current version of rtc-x1205.c does not work
correctly when asked to set the alarm time by the RTC_WKALM_SET ioctl()
call.  This happens because the alarm registers do not behave like the
current-time registers.  They are non-volatile.  Two things go wrong:

- the X1205 requires a 10 msec delay after any attempt to write to the
  non-volatile registers.  The x1205_set_datetime() routine does the write
  as 8 single-byte writes without any delay.  Only the first write
  succeeds.  The second is NAKed because the chip is busy.

- the X1205 resets the RWEL bit after any write to the non-volatile
  registers.  This would lock out any further writes after the first even
  with a 10msec delay.

I fix this by doing a single 8-byte write and then waiting 10msec for the
chip to be ready.  A side effect of this change is that it will speed up
x1205_rtc_set_time() which uses the same code.

I have also implemented the 'enable' bit in the rtc_wkalm structure, which
the existing driver does not attempt to do.  I have modified both
x1205_rtc_set_alarm() to set the AL0E bit, and x1205_rtc_read_alarm() to
return it.

I have tested this patch on a LinkSys NSLU2 under OpenWRT, but on no other
hardware.  On the NSLU2 the X1205 correctly asserts its IRQ pin when the
alarm time matches the current time.

[akpm@linux-foundation.org: clean up over-parenthesisation]
Signed-off-by: Michael Hamel <mhamel@adi.co.nz>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoget_user_pages(): fix possible page leak on oom
Oleg Nesterov [Fri, 4 Jul 2008 16:59:28 +0000]
get_user_pages(): fix possible page leak on oom

get_user_pages() must not return the error when i != 0.  When pages !=
NULL we have i get_page()'ed pages.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Acked-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoserial: fix serial_match_port() for dynamic major tty-device numbers
Guennadi Liakhovetski [Fri, 4 Jul 2008 16:59:28 +0000]
serial: fix serial_match_port() for dynamic major tty-device numbers

As reported by Vipul Gandhi, the current serial_match_port() doesn't work
for tty-devices using dynamic major number allocation.  Fix it.

It oopses if you suspend a serial port with _dynamic_ major number.  ATM,
I think, there's only the drivers/serial/jsm/jsm_driver.c driver, that
does it in-tree.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Tested-by: Vipul Gandhi <vcgandhi1@aol.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agofirmware: fix the request_firmware() dummy
James Bottomley [Fri, 4 Jul 2008 16:59:27 +0000]
firmware: fix the request_firmware() dummy

> the build (.config attached) failed, make ends with :
> ...
>   UPD     include/linux/compile.h
>   CC      init/version.o
>   LD      init/built-in.o
>   LD      vmlinux
> drivers/built-in.o: In function `sas_request_addr':
> (.text+0x33bab): undefined reference to `request_firmware'
> drivers/built-in.o: In function `sas_request_addr':
> (.text+0x33c3f): undefined reference to `release_firmware'
> make: *** [vmlinux] Error 1

There's a slight fault in the stub logic.  It fails for FW_LOADER=m and
the user =y.

This should fix it.

This patch fixes the following 2.6.26-rc regression:
  http://bugzilla.kernel.org/show_bug.cgi?id=10730

Reviewed-by: Toralf Foerster <toralf.foerster@gmx.de>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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>

12 years agortc: rtc_read_alarm() handles wraparound
David Brownell [Fri, 4 Jul 2008 16:59:26 +0000]
rtc: rtc_read_alarm() handles wraparound

While 0e36a9a4a788e4e92407774df76c545910810d35 ("rtc: fix readback from
/sys/class/rtc/rtc?/wakealarm") made sure that active alarms were never
returned with invalid "wildcard" fields (negative), it can still report
(wrongly) that the alarm triggers in the past.

Example, if it's now 10am, an alarm firing at 5am will be triggered
TOMORROW not today.  (Which may also be next month or next year...)

This updates that alarm handling in three ways:

  * Handle alarm rollover in the common cases of RTCs that don't
    support matching on all date fields.

  * Skip the invalid-field logic when it's not needed.

  * Minor bugfix ... tm_isdst should be ignored, it's one of the
    fields Linux doesn't maintain.

A warning is emitted for some of the unhandled rollover cases, but the
possible combinations are a bit too numerous to handle every bit of
potential hardware and firmware braindamage.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Mark Lord <lkml@rtr.ca>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agomm: dirty page accounting vs VM_MIXEDMAP
Peter Zijlstra [Fri, 4 Jul 2008 16:59:24 +0000]
mm: dirty page accounting vs VM_MIXEDMAP

Dirty page accounting accurately measures the amound of dirty pages in
writable shared mappings by mapping the pages RO (as indicated by
vma_wants_writenotify).  We then trap on first write and call
set_page_dirty() on the page, after which we map the page RW and
continue execution.

When we launder dirty pages, we call clear_page_dirty_for_io() which
clears both the dirty flag, and maps the page RO again before we start
writeout so that the story can repeat itself.

vma_wants_writenotify() excludes VM_PFNMAP on the basis that we cannot
do the regular dirty page stuff on raw PFNs and the memory isn't going
anywhere anyway.

The recently introduced VM_MIXEDMAP mixes both !pfn_valid() and
pfn_valid() pages in a single mapping.

We can't do dirty page accounting on !pfn_valid() pages as stated
above, and mapping them RO causes them to be COW'ed on write, which
breaks VM_SHARED semantics.

Excluding VM_MIXEDMAP in vma_wants_writenotify() would mean we don't do
the regular dirty page accounting for the pfn_valid() pages, which
would bring back all the head-aches from inaccurate dirty page
accounting.

So instead, we let the !pfn_valid() pages get mapped RO, but fix them
up unconditionally in the fault path.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Acked-by: Hugh Dickins <hugh@veritas.com>
Cc: "Jared Hulbert" <jaredeh@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoChristoph has moved
Christoph Lameter [Fri, 4 Jul 2008 16:59:22 +0000]
Christoph has moved

Remove all clameter@sgi.com addresses from the kernel tree since they will
become invalid on June 27th.  Change my maintainer email address for the
slab allocators to cl@linux-foundation.org (which will be the new email
address for the future).

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
Linus Torvalds [Fri, 4 Jul 2008 16:52:54 +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:
  sata_mv: safer logic for limit_warnings
  libata-sff: improve HSM violation reporting
  ahci: always clear all bits in irq_stat
  sata_sil24: add DID for another adaptec flavor
  sata_uli: hardreset is broken

12 years agoMerge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
Linus Torvalds [Fri, 4 Jul 2008 16:51:51 +0000]
Merge branch 'upstream' of git://ftp.linux-mips.org/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  [MIPS] Fix bug in atomic_sub_if_positive.

12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg...
Linus Torvalds [Fri, 4 Jul 2008 16:48:21 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/penberg/slab-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6:
  slub: Do not use 192 byte sized cache if minimum alignment is 128 byte

12 years agoUpdate maintainers for powerpc
Paul Mackerras [Fri, 4 Jul 2008 11:04:42 +0000]
Update maintainers for powerpc

This updates the MAINTAINERS entries for powerpc.  It adds Ben H to
the overall Linux for PowerPC entry and makes it clear this covers
both 32-bit and 64-bit machines.  It removes the separate entry we had
for Linux on 64-bit PowerPC where Anton and I were listed as
maintainers - Anton hasn't been involved in the day-to-day maintenance
of the code for several years.  Finally, it removes the entry for the
Linux for PowerPC boot code where Tom Rini was listed as the
maintainer.  That code got completely rewritten when we merged
32-bit and 64-bit, and I and the various platform maintainers have
been maintaining that code since.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Tom Rini <trini@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

12 years agosata_mv: safer logic for limit_warnings
Mark Lord [Thu, 19 Jun 2008 01:57:42 +0000]
sata_mv: safer logic for limit_warnings

There is a miniscule chance that two separate host controllers
might be in sata_mv at the same time and manage to decrement
the static limit_warnings variable below zero.

Fix the comparison to deal with it.

Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

12 years agolibata-sff: improve HSM violation reporting
Tejun Heo [Fri, 27 Jun 2008 16:39:43 +0000]
libata-sff: improve HSM violation reporting

Improve SFF HSM violation reporting such that each HSM violation can
be distinguished using ehi_desc.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

12 years agoahci: always clear all bits in irq_stat
Tejun Heo [Fri, 27 Jun 2008 16:49:02 +0000]
ahci: always clear all bits in irq_stat

Some AHCI controllers (ICH7 was reported) set pending bit in
HOST_IRQ_STAT for non-existent ports and when it's not cleared falls
into IRQ storm.  Always clear full irq_stat instead of only the bits
that are handled.  As nothing changes for recognized ports, the risk
of breaking things is pretty low.

Reported and verified by Philipp Thomas in the following suse
bugzilla.

https://bugzilla.novell.com/attachment.cgi?id=215692

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Philipp Thomas <pth@novell.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

12 years agosata_sil24: add DID for another adaptec flavor
Tejun Heo [Wed, 2 Jul 2008 08:50:23 +0000]
sata_sil24: add DID for another adaptec flavor

There's another DID used for Adaptec card.  Add it.

Reported by Travis Read.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Travis Read <ics@dark.net.au>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

12 years agoxen: fix address truncation in pte mfn<->pfn conversion
Jeremy Fitzhardinge [Fri, 4 Jul 2008 05:10:18 +0000]
xen: fix address truncation in pte mfn<->pfn conversion

When converting the page number in a pte/pmd/pud/pgd between
machine and pseudo-physical addresses, the converted result was
being truncated at 32-bits.  This caused failures on machines
with more than 4G of physical memory.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: "Christopher S. Aker" <caker@theshore.net>
Cc: Ian Campbell <Ian.Campbell@eu.citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 years ago[MIPS] Fix bug in atomic_sub_if_positive.
Ralf Baechle [Thu, 3 Jul 2008 22:28:35 +0000]
[MIPS] Fix bug in atomic_sub_if_positive.

The branch optimization fixes in 2.6.21 introduced a bug in
atomic_sub_if_positive that causes it to return even when the sc
instruction fails. The result is that e.g. down_trylock becomes unreliable
as the semaphore counter is not always decremented.

Original MUA-shredded patch from Morten Larsen <mlarsen@broadcom.com>.

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

12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
Linus Torvalds [Fri, 4 Jul 2008 04:29:08 +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: adding comment for ipaq forcing number of ports
  USB: fix Oops on loading ipaq module since 2.6.26
  USB: add a pl2303 device id
  USB: another option device id
  USB: don't lose disconnections during suspend
  USB: fix interrupt disabling for HCDs with shared interrupt handlers
  USB: New device ID for ftdi_sio driver
  sisusbvga: Fix oops on disconnect.
  USB: mass storage: new id for US_SC_CYP_ATACB
  USB: ohci - record data toggle after unlink
  USB: ehci - fix timer regression
  USB: fix cdc-acm resume()
  OHCI: Fix problem if SM501 and another platform driver is selected

12 years agoUSB: adding comment for ipaq forcing number of ports
Oliver Neukum [Thu, 3 Jul 2008 15:14:16 +0000]
USB: adding comment for ipaq forcing number of ports

The reason for forcing a number of ports should be documented.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

12 years agoUSB: fix Oops on loading ipaq module since 2.6.26
Oliver Neukum [Thu, 3 Jul 2008 08:05:57 +0000]
USB: fix Oops on loading ipaq module since 2.6.26

Fixes bugzilla.kernel.org #10868

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

12 years agoUSB: add a pl2303 device id
Greg Kroah-Hartman [Wed, 2 Jul 2008 20:25:41 +0000]
USB: add a pl2303 device id

As reported by Ken A Scott <kscott9@sent.com>

Cc: Ken A Scott <kscott9@sent.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

12 years agoUSB: another option device id
Greg Kroah-Hartman [Tue, 1 Jul 2008 07:41:56 +0000]
USB: another option device id

Thanks to umesh b <umesh.kollam@gmail.com> for the information here.

Cc: umesh b <umesh.kollam@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

12 years agoUSB: don't lose disconnections during suspend
Alan Stern [Tue, 1 Jul 2008 14:45:51 +0000]
USB: don't lose disconnections during suspend

This patch (as1111) fixes a bug in the hub driver.  When a hub
resumes, disconnections that occurred while the hub was suspended are
lost.

A completely different fix for this problem has already been accepted
for 2.6.27; however the problem still needs to be handled in 2.6.26.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Lukas Hejtmanek <xhejtman@ics.muni.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

12 years agoUSB: fix interrupt disabling for HCDs with shared interrupt handlers
Stefan Becker [Tue, 1 Jul 2008 16:19:22 +0000]
USB: fix interrupt disabling for HCDs with shared interrupt handlers

USB: fix interrupt disabling for HCDs with shared interrupt handlers

As has been discussed several times on LKML, IRQF_SHARED | IRQF_DISABLED
doesn't work reliably, i.e. a shared interrupt handler CAN'T be certain to
be called with interrupts disabled. Most USB HCD handlers use IRQF_DISABLED
and therefore havoc can break out if they share their interrupt with a
handler that doesn't use it.

On my test machine the yenta_socket interrupt handler (no IRQF_DISABLED)
was registered before ehci_hcd and one uhci_hcd instance. Therefore all
usb_hcd_irq() invocations for ehci_hcd and for one uhci_hcd instance
happened with interrupts enabled. That led to random lockups as USB core
HCD functions that acquire the same spinlock could be called twice
from interrupt handlers.

This patch updates usb_hcd_irq() to always disable/restore interrupts.
usb_add_hcd() will silently remove any IRQF_DISABLED requested from HCD code.

Signed-off-by: Stefan Becker <stefan.becker@nokia.com>
Cc: stable <stable@kernel.org>
Acked-by: David Brownell <david-b@pacbell.net>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

12 years agoUSB: New device ID for ftdi_sio driver
Jon K Hellan [Tue, 24 Jun 2008 09:43:13 +0000]
USB: New device ID for ftdi_sio driver

Here's a new device ID for the ftdio_sio driver.
The diff is with linus's tree as of this morning.

The device is the RigExpert Tiny USB Soundcard Transceiver Interface for ham
radio.

(I didn't actually test this. A fellow ham couldn't get the device to work, and
I suggested binding the device ID using sysfs - see
"http://jk.ufisa.uninett.no/usb/". However, he had had moved on to other things
by then. I guess adding the device ID to the kernel "on spec" won't hurt.
The relevant part of cat /proc/bus/usb/devices shows:

T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=12  MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=0403 ProdID=ed22 Rev= 5.00
S:  Manufacturer=FTDI
S:  Product=MixW RigExpert Tiny
S:  SerialNumber=00000000
C:* #Ifs= 2 Cfg#= 1 Atr=80 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=81(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=83(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=04(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
)

From: Jon K Hellan <hellan@acm.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>