linux-2.6
15 years agoMAINTAINERS: pair EDAC-E752X P: and M: entries
Joe Perches [Thu, 28 May 2009 21:34:18 +0000 (14:34 -0700)] 
MAINTAINERS: pair EDAC-E752X P: and M: entries

Entries should be P: name then M: email address.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agortl8187: add USB ID for Linksys WUSB54GC-EU v2 USB wifi dongle
John W. Linville [Wed, 27 May 2009 07:21:57 +0000 (09:21 +0200)] 
rtl8187: add USB ID for Linksys WUSB54GC-EU v2 USB wifi dongle

http://bugzilla.kernel.org/show_bug.cgi?id=13383

Reported-by: Przemyslaw Kulczycki <azrael@autocom.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
15 years agoat76c50x-usb: avoid mutex deadlock in at76_dwork_hw_scan
John W. Linville [Thu, 28 May 2009 09:39:02 +0000 (11:39 +0200)] 
at76c50x-usb: avoid mutex deadlock in at76_dwork_hw_scan

http://bugzilla.kernel.org/show_bug.cgi?id=13312

at76_dwork_hw_scan holds a mutex while calling ieee80211_scan_completed,
which then calls at76_config which needs the same mutex.  This reworks
the ordering to not hold the lock while calling ieee80211_scan_completed.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
15 years agojffs2: Fix corruption when flash erase/write failure
Joakim Tjernlund [Thu, 28 May 2009 15:43:59 +0000 (17:43 +0200)] 
jffs2: Fix corruption when flash erase/write failure

Erase errors such as:
"Newly-erased block contained word 0xa4ef223e at offset 0x0296a014"
and failure to write the clean marker,
moves the offending erase block to erasing list before calling
jffs2_erase_failed(). This is bad as jffs2_erase_failed() will
also move the block to the bad_list, but is now moving the
wrong block, causing FS corruption.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
15 years agomtd: MXC NAND driver fixes (v5)
Vladimir Barinov [Thu, 23 Apr 2009 11:47:22 +0000 (15:47 +0400)] 
mtd: MXC NAND driver fixes (v5)

The following patch fixes:
 - re-initialization of host->col_addr which is used as byte index
   between the successive READID flash commands.
 - compile error when CONFIG_PM is enabled
 - pass on the error code from clk_get()
 - return -ENOMEM in case of failed ioremap()
 - pass on the return value of platform_driver_probe() directly
 - remove excessive printk
 - let command line partition table parsing with mxc_nand name.
   The cmd_line parsing is done via <mtd-id> name that differs
   from mxc_nand by default and looks like "NAND 256MiB 1,8V 8-bit"

Signed-off-by: Vladimir Barinov <vbarinov@embeddedalley.com>
Signed-off-by: Lothar Wassmann <LW@KARO-electronics.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
15 years agoMerge branch 'for-rmk' of git://gitorious.org/linux-gemini/mainline
Russell King [Fri, 29 May 2009 09:19:22 +0000 (10:19 +0100)] 
Merge branch 'for-rmk' of git://gitorious.org/linux-gemini/mainline

15 years ago[ARM] update mach-types
Russell King [Fri, 29 May 2009 09:15:08 +0000 (10:15 +0100)] 
[ARM] update mach-types

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years agomac8390: fix build with NET_POLL_CONTROLLER
Finn Thain [Thu, 28 May 2009 02:05:53 +0000 (02:05 +0000)] 
mac8390: fix build with NET_POLL_CONTROLLER

Fix the build for CONFIG_NET_POLL_CONTROLLER that I broke with
217cbfa856dc1cbc2890781626c4032d9e3ec59f ("mac8390: fix regression
caused during net_device_ops conversion").

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agocxgb3: link fault fixes
Divy Le Ray [Thu, 28 May 2009 11:23:08 +0000 (11:23 +0000)] 
cxgb3: link fault fixes

Do not call t3_link_fault() under spinlock, as it calls msleep().
Besides, only the access to pi->link_fault needs to be serialized.

Also initialize local variables before checking the link status,
link state fields might otherwise end up containing garbage.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agocxgb3: fix dma mapping regression
Divy Le Ray [Thu, 28 May 2009 11:23:02 +0000 (11:23 +0000)] 
cxgb3: fix dma mapping regression

Commit 5e68b772e6efd189d6aca76f6872fb75d51ace60
  cxgb3: map entire Rx page, feed map+offset to Rx ring.

introduced a regression on platforms defining DECLARE_PCI_UNMAP_ADDR()
and related macros as no-ops.

Rx descriptors are fed with the a page buffer bus address + page chunk offset.
The page buffer bus address is set and retrieved through
pci_unamp_addr_set(), pci_unmap_addr().
These functions being meaningless on x86 (if CONFIG_DMA_API_DEBUG is not set).
The HW ends up with a bogus bus address.

This patch saves the page buffer bus address for all plaftorms.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoi7300_idle: allow testing on i5000-series hardware w/o re-compile
Len Brown [Thu, 28 May 2009 03:59:58 +0000 (23:59 -0400)] 
i7300_idle: allow testing on i5000-series hardware w/o re-compile

Testing the i7300_idle driver on i5000-series hardware required
an edit to i7300_idle.h to "#define SUPPORT_I5000 1" and a re-build
of both i7300_idle and ioat_dma.

Replace that build-time scheme with a load-time module parameter:
"7300_idle.forceload=1" to make it easier to test the driver
on hardware that while not officially validated, works fine
and is much more commonly available.

By default (no modparam) the driver will continue to load
only on the i7300.

Note that ioat_dma runs a copy of i7300_idle's probe routine
to know to reserve an IOAT channel for i7300_idle.
This change makes ioat_dma do that always on the i5000,
just like it does on the i7300.

Signed-off-by: Len Brown <len.brown@intel.com>
Acked-by: Andrew Henroid <andrew.d.henroid@intel.com>
15 years agoDriver Core: do not oops when driver_unregister() is called for unregistered drivers
Kay Sievers [Thu, 28 May 2009 21:24:07 +0000 (14:24 -0700)] 
Driver Core: do not oops when driver_unregister() is called for unregistered drivers

We also fix a problem with cleaning up properly when initializing
drivers and devices, so checks like this will work successfully.

Portions of the patch by Linus and Greg and Ingo.

Reported-by: Ozan Çağlayan <ozan@pardus.org.tr>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agosysfs: file.c: use create_singlethread_workqueue()
Andrew Morton [Thu, 7 May 2009 19:36:53 +0000 (12:36 -0700)] 
sysfs: file.c: use create_singlethread_workqueue()

We don't need a kernel thread per CPU for this application.

Acked-by: Alex Chiang <achiang@hp.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoRevert "USB: Correct Makefile to make isp1760 buildable"
Mike Frysinger [Wed, 20 May 2009 12:49:48 +0000 (08:49 -0400)] 
Revert "USB: Correct Makefile to make isp1760 buildable"

This reverts commit 26e1287594864169577327fef233befc9739be3b.

A larger patch (f7e7aa585) a few days after this one added the same line
to the Makefile, but in a different place.  While it'd be more correct to
revert that one, it's easier to revert this one because this is a
one-liner.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
CC: Greg Kroah-Hartman <gregkh@suse.de>
CC: linux-usb@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agousb-serial: fix crash when sub-driver updates firmware
Alan Stern [Wed, 27 May 2009 15:25:52 +0000 (11:25 -0400)] 
usb-serial: fix crash when sub-driver updates firmware

This patch (as1244) fixes a crash in usb-serial that occurs when a
sub-driver returns a positive value from its attach method, indicating
that new firmware was loaded and the device will disconnect and
reconnect.  The usb-serial core then skips the step of registering the
port devices; when the disconnect occurs, the attempt to unregister
the ports fails dramatically.

This problem shows up with Keyspan devices and it might affect others
as well.

When the attach method returns a positive value, the patch sets
num_ports to 0.  This tells usb_serial_disconnect() not to try
unregistering any of the ports; instead they are cleaned up by
destroy_serial().

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoUSB: isp1760: urb_dequeue doesn't always find the urbs
Warren Free [Fri, 8 May 2009 08:27:08 +0000 (10:27 +0200)] 
USB: isp1760: urb_dequeue doesn't always find the urbs

The option driver (and presumably others) allocates several URBs when it
opens and tries to free them when it closes. The isp1760_urb_dequeue
function gets called, but the packet being dequeued is not necessarily at
the
front of one of the 32 queues. If not, the isp1760_urb_done function doesn't
get called for the URB and the process trying to free it hangs forever on a
wait_queue. This patch does two things. If the URB being dequeued has others
queued behind it, it re-queues them. And it searches the queues looking for
the URB being dequeued rather than just looking at the one at the front of
the queue.

[bigeasy@linutronix] whitespace fixes, reformating

Cc: stable <stable@kernel.org>
Signed-off-by: Warren Free <wfree@ipmn.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoUSB: Yet another Conexant Clone to add to cdc-acm.c
Xiao Kaijian [Thu, 7 May 2009 16:48:23 +0000 (00:48 +0800)] 
USB: Yet another Conexant Clone to add to cdc-acm.c

This patch adds another quirky Conexant USB Modem Clone to usb cdc-acm.c

Signed-off-by: Xiao Kaijian <xiaokj@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoUSB: atmel_usb_udc: Use kzalloc() to allocate ep structures
Haavard Skinnemoen [Tue, 5 May 2009 00:22:43 +0000 (17:22 -0700)] 
USB: atmel_usb_udc: Use kzalloc() to allocate ep structures

This ensures that all fields are properly initialized.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years agoUSB: atmel-usba-udc : fix control out requests.
Martin Fuzzey [Fri, 1 May 2009 15:21:11 +0000 (17:21 +0200)] 
USB: atmel-usba-udc : fix control out requests.

usbtest #14 was failing with "udc: ep0: TXCOMP: Invalid endpoint state 2, halting endpoint..."
This occured since ep0 is bidirectional and ep->is_in is not valid (must always use ep->state)

Signed-off-by: Martin Fuzzey <mfuzzey@gmail.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
15 years ago[ARM] Add cmpxchg support for ARMv6+ systems (v5)
Mathieu Desnoyers [Thu, 28 May 2009 20:07:39 +0000 (16:07 -0400)] 
[ARM] Add cmpxchg support for ARMv6+ systems (v5)

Add cmpxchg/cmpxchg64 support for ARMv6K and ARMv7 systems
(original patch from Catalin Marinas <catalin.marinas@arm.com>)

The cmpxchg and cmpxchg64 functions can be implemented using the
LDREX*/STREX* instructions. Since operand lengths other than 32bit are
required, the full implementations are only available if the ARMv6K
extensions are present (for the LDREXB, LDREXH and LDREXD instructions).

For ARMv6, only 32-bits cmpxchg is available.

Mathieu :

Make cmpxchg_local always available with best implementation for all type sizes (1, 2, 4 bytes).
Make cmpxchg64_local always available.

Use "Ir" constraint for "old" operand, like atomic.h atomic_cmpxchg does.

Change since v3 :
- Add "memory" clobbers (thanks to Nicolas Pitre)
- removed __asmeq(), only needed for old compilers, very unlikely on ARMv6+.

Note : ARMv7-M should eventually be ifdefed-out of cmpxchg64. But it's not
supported by the Linux kernel currently.

Put back arm < v6 cmpxchg support.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: Catalin Marinas <catalin.marinas@arm.com>
CC: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years ago[ARM] barriers: improve xchg, bitops and atomic SMP barriers
Russell King [Mon, 25 May 2009 19:58:00 +0000 (20:58 +0100)] 
[ARM] barriers: improve xchg, bitops and atomic SMP barriers

Mathieu Desnoyers pointed out that the ARM barriers were lacking:

- cmpxchg, xchg and atomic add return need memory barriers on
  architectures which can reorder the relative order in which memory
  read/writes can be seen between CPUs, which seems to include recent
  ARM architectures. Those barriers are currently missing on ARM.

- test_and_xxx_bit were missing SMP barriers.

So put these barriers in.  Provide separate atomic_add/atomic_sub
operations which do not require barriers.

Reported-Reviewed-and-Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
15 years agoInput: libps2 - better handle bad scheduler decisions
Dmitry Torokhov [Thu, 28 May 2009 16:51:31 +0000 (09:51 -0700)] 
Input: libps2 - better handle bad scheduler decisions

Sometimes devices send us their responses in time but due to
unfortunate scheduling decisions the receiving thread does not
get scheduled till much later and we erroneously decide that
device timed out. Work around this problem by checking whether we
received the data we needed instead of checking timeout
condition.

Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
15 years agoGemini: Fix SRAM/ROM location after memory swap
Paulius Zaleckas [Thu, 28 May 2009 13:42:25 +0000 (16:42 +0300)] 
Gemini: Fix SRAM/ROM location after memory swap

Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
15 years agoMAINTAINER: Add F: entries for Gemini and FA526
Paulius Zaleckas [Thu, 28 May 2009 13:41:36 +0000 (16:41 +0300)] 
MAINTAINER: Add F: entries for Gemini and FA526

Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
15 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Thu, 28 May 2009 10:02:13 +0000 (12:02 +0200)] 
Merge branch 'fix/hda' into for-linus

* fix/hda:
  ALSA: hda - Compaq Presario CQ60 patching for Conexant

15 years agoALSA: hda - Compaq Presario CQ60 patching for Conexant
Tony Vroon [Wed, 27 May 2009 20:00:41 +0000 (21:00 +0100)] 
ALSA: hda - Compaq Presario CQ60 patching for Conexant

A docking mic control is shown by default. The Compaq Presario
CQ60 laptop has no docking connector, so designate it as a
CXT5051_HP model.
This makes the phantom mixer slider disappear.

Signed-off-by: Tony Vroon <tony@linx.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agosvcrdma: dma unmap the correct length for the RPCRDMA header page.
Steve Wise [Thu, 14 May 2009 21:34:28 +0000 (16:34 -0500)] 
svcrdma: dma unmap the correct length for the RPCRDMA header page.

The svcrdma module was incorrectly unmapping the RPCRDMA header page.
On IBM pserver systems this causes a resource leak that results in
running out of bus address space (10 cthon iterations will reproduce it).
The code was mapping the full page but only unmapping the actual header
length.  The fix is to only map the header length.

I also cleaned up the use of ib_dma_map_page() calls since the unmap
logic always uses ib_dma_unmap_single().  I made these symmetrical.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
15 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6
David S. Miller [Wed, 27 May 2009 22:51:25 +0000 (15:51 -0700)] 
Merge branch 'master' of git://git./linux/kernel/git/kaber/nf-2.6

15 years agonfsd: Revert "svcrpc: take advantage of tcp autotuning"
J. Bruce Fields [Wed, 27 May 2009 22:51:06 +0000 (18:51 -0400)] 
nfsd: Revert "svcrpc: take advantage of tcp autotuning"

This reverts commit 47a14ef1af48c696b214ac168f056ddc79793d0e "svcrpc:
take advantage of tcp autotuning", which uncovered some further problems
in the server rpc code, causing significant performance regressions in
common cases.

We will likely reinstate this patch after releasing 2.6.30 and applying
some work on the underlying fixes to the problem (developed by Trond).

Reported-by: Jeff Moyer <jmoyer@redhat.com>
Cc: Olga Kornievskaia <aglo@citi.umich.edu>
Cc: Jim Rees <rees@umich.edu>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
15 years agoPCI/ACPI: fix wrong ref count handling in acpi_pci_bind()
Kenji Kaneshige [Tue, 26 May 2009 00:08:03 +0000 (09:08 +0900)] 
PCI/ACPI: fix wrong ref count handling in acpi_pci_bind()

The 'dev' field of struct acpi_pci_data is having a pointer to struct
pci_dev without incrementing the reference counter. Because of this, I
got the following kernel oops when I was doing some pci hotplug
operations. This patch fixes this bug by replacing wrong hand-made
pci_find_slot() with pci_get_slot() in acpi_pci_bind().

 BUG: unable to handle kernel NULL pointer dereference at 00000000000000e8
 IP: [<ffffffff803f0e9b>] acpi_pci_unbind+0xb1/0xdd

 Call Trace:
  [<ffffffff803ecee4>] acpi_bus_remove+0x54/0x68
  [<ffffffff803ecf6d>] acpi_bus_trim+0x75/0xe3
  [<ffffffffa0345ddd>] acpiphp_disable_slot+0x16d/0x1e0 [acpiphp]
  [<ffffffffa03441f0>] disable_slot+0x20/0x60 [acpiphp]
  [<ffffffff803cfc18>] power_write_file+0xc8/0x110
  [<ffffffff803c6a54>] pci_slot_attr_store+0x24/0x30
  [<ffffffff803469ce>] sysfs_write_file+0xce/0x140
  [<ffffffff802e94e7>] vfs_write+0xc7/0x170
  [<ffffffff802e9aa0>] sys_write+0x50/0x90
  [<ffffffff8020bd6b>] system_call_fastpath+0x16/0x1b

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Reviewed-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Reviewed-by: Alex Chiang <achiang@hp.com>
Tested-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agonfsd: fix hung up of nfs client while sync write data to nfs server
Wei Yongjun [Tue, 19 May 2009 04:03:15 +0000 (12:03 +0800)] 
nfsd: fix hung up of nfs client while sync write data to nfs server

Commit 'Short write in nfsd becomes a full write to the client'
(31dec2538e45e9fff2007ea1f4c6bae9f78db724) broken the sync write.
With the following commands to reproduce:

  $ mount -t nfs -o sync 192.168.0.21:/nfsroot /mnt
  $ cd /mnt
  $ echo aaaa > temp.txt

Then nfs client is hung up.

In SYNC mode the server alaways return the write count 0 to the
client. This is because the value of host_err in nfsd_vfs_write()
will be overwrite in SYNC mode by 'host_err=nfsd_sync(file);',
and then we return host_err(which is now 0) as write count.

This patch fixed the problem.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
15 years agofsldma: Fix compile warnings
Kumar Gala [Wed, 13 May 2009 21:25:57 +0000 (16:25 -0500)] 
fsldma: Fix compile warnings

We we build with dma_addr_t as a 64-bit quantity we get:

drivers/dma/fsldma.c: In function 'fsl_chan_xfer_ld_queue':
drivers/dma/fsldma.c:625: warning: cast to pointer from integer of different size
drivers/dma/fsldma.c: In function 'fsl_dma_chan_do_interrupt':
drivers/dma/fsldma.c:737: warning: cast to pointer from integer of different size
drivers/dma/fsldma.c:737: warning: cast to pointer from integer of different size
drivers/dma/fsldma.c: In function 'of_fsl_dma_probe':
drivers/dma/fsldma.c:927: warning: cast to pointer from integer of different

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
15 years agoi915: Set object to gtt domain when faulting it back in
Kristian Høgsberg [Wed, 27 May 2009 18:37:28 +0000 (14:37 -0400)] 
i915: Set object to gtt domain when faulting it back in

When a GEM object is evicted from the GTT we set it to the CPU domain,
as it might get swapped in and out or ever mmapped regularly.  If the
object is mmapped through the GTT it can still get evicted in this way
by other objects requiring GTT space.  When the GTT mapping is touched
again we fault it back into the GTT, but fail to set it back to the
GTT domain.  This means we fail to flush any cached CPU writes to the
pages backing the object which will then happen "eventually", typically
after we write to the page through the uncached GTT mapping.

[anholt: Note that userland does do a set_domain(GTT, GTT) when starting
to access the GTT mapping.  That covers getting the existing mapping of the
object synchronized if it's bound to the GTT.  But set_domain(GTT, GTT)
doesn't do anything if the object is currently unbound.  This fix covers the
transition to being bound for GTT mapping.]

Fixes glyph and other pixmap corruption during swapping.  fd.o bug #21790

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier...
Linus Torvalds [Wed, 27 May 2009 17:58:49 +0000 (10:58 -0700)] 
Merge branch 'for-linus' of git://git./linux/kernel/git/vapier/blackfin

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin:
  Blackfin: fix strncmp.o build error
  Blackfin: drop unneeded asm/.gitignore
  Blackfin: ignore generated vmlinux.lds
  MAINTAINERS: drop (subscribers-only) markings on Blackfin lists
  MAINTAINERS: update Blackfin items
  Blackfin: hook up preadv/pwritev syscalls

15 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Wed, 27 May 2009 17:58:23 +0000 (10:58 -0700)] 
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc: Fix up dma_alloc_coherent() on platforms without cache coherency.
  powerpc: Minor cleanups of kernel virt address space definitions
  powerpc: Move dma-noncoherent.c from arch/powerpc/lib to arch/powerpc/mm
  Revert "powerpc: Rework dma-noncoherent to use generic vmalloc layer"

15 years agoCacheFiles: Fixup renamed filenames in comments in internal.h
David Howells [Wed, 27 May 2009 14:46:55 +0000 (15:46 +0100)] 
CacheFiles: Fixup renamed filenames in comments in internal.h

Fix up renamed filenames in comments in fs/cachefiles/internal.h.

Originally, the files were all called cf-xxx.c, but they got renamed to
just xxx.c.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoFS-Cache: Fixup renamed filenames in comments in internal.h
David Howells [Wed, 27 May 2009 14:46:50 +0000 (15:46 +0100)] 
FS-Cache: Fixup renamed filenames in comments in internal.h

Fix up renamed filenames in comments in fs/fscache/internal.h.

Originally, the files were all called fsc-xxx.c, but they got renamed to
just xxx.c.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoMerge branch 'for-linus' of git://neil.brown.name/md
Linus Torvalds [Wed, 27 May 2009 17:18:26 +0000 (10:18 -0700)] 
Merge branch 'for-linus' of git://neil.brown.name/md

* 'for-linus' of git://neil.brown.name/md:
  md: raid5: change incorrect usage of 'min' macro to 'min_t'

15 years agoMerge branch 'fix/pcm-jiffies-check' into for-linus
Takashi Iwai [Wed, 27 May 2009 14:51:27 +0000 (16:51 +0200)] 
Merge branch 'fix/pcm-jiffies-check' into for-linus

* fix/pcm-jiffies-check:
  ALSA: Enable PCM hw_ptr_jiffies check only in xrun_debug mode
  ALSA: Fix invalid jiffies check after pause

15 years agoMerge branch 'fix/misc' into for-linus
Takashi Iwai [Wed, 27 May 2009 14:51:15 +0000 (16:51 +0200)] 
Merge branch 'fix/misc' into for-linus

* fix/misc:
  sound: usb-audio: make the MotU Fastlane work again

15 years agonetfilter: nfnetlink_log: fix wrong skbuff size calculation
Pablo Neira Ayuso [Wed, 27 May 2009 13:49:11 +0000 (15:49 +0200)] 
netfilter: nfnetlink_log: fix wrong skbuff size calculation

This problem was introduced in 72961ecf84d67d6359a1b30f9b2a8427f13e1e71
since no space was reserved for the new attributes NFULA_HWTYPE,
NFULA_HWLEN and NFULA_HWHEADER.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
15 years agonetfilter: xt_hashlimit does a wrong SEQ_SKIP
Jesper Dangaard Brouer [Wed, 27 May 2009 13:45:34 +0000 (15:45 +0200)] 
netfilter: xt_hashlimit does a wrong SEQ_SKIP

The function dl_seq_show() returns 1 (equal to SEQ_SKIP) in case
a seq_printf() call return -1.  It should return -1.

This SEQ_SKIP behavior brakes processing the proc file e.g. via a
pipe or just through less.

Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk>
Signed-off-by: Patrick McHardy <kaber@trash.net>
15 years agoInput: usb1400_ts - fix access to "device data" in resume function
Manuel Traut [Wed, 27 May 2009 13:20:05 +0000 (06:20 -0700)] 
Input: usb1400_ts - fix access to "device data" in resume function

platform_data != driver_data

driver data is actually the "correct" place of the struct however it is
not placed there due to the need of the ac97 struct. This is broken since
d9105c2b01 aka "[ARM] 5184/1: Split ucb1400_ts into core and touchscreen"

Signed-off-by: Manuel Traut <manut@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
15 years agomd: raid5: change incorrect usage of 'min' macro to 'min_t'
NeilBrown [Wed, 27 May 2009 11:39:05 +0000 (21:39 +1000)] 
md: raid5: change incorrect usage of 'min' macro to 'min_t'

A recent patch to raid5.c use min on an int and a sector_t.
This isn't allowed.
So change it to min_t(sector_t,x,y).

Signed-off-by: NeilBrown <neilb@suse.de>
15 years agosound: usb-audio: make the MotU Fastlane work again
Clemens Ladisch [Wed, 27 May 2009 08:49:30 +0000 (10:49 +0200)] 
sound: usb-audio: make the MotU Fastlane work again

Kernel 2.6.18 broke the MotU Fastlane, which uses duplicate endpoint
numbers in a manner that is not only illegal but also confuses the
kernel's endpoint descriptor caching mechanism.  To work around this, we
have to add a separate usb_set_interface() call to guide the USB core to
the correct descriptors.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Reported-and-tested-by: David Fries <david@fries.net>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoALSA: Enable PCM hw_ptr_jiffies check only in xrun_debug mode
Takashi Iwai [Wed, 27 May 2009 08:53:33 +0000 (10:53 +0200)] 
ALSA: Enable PCM hw_ptr_jiffies check only in xrun_debug mode

The PCM hw_ptr jiffies check results sometimes in problems when a
hardware doesn't give smooth hw_ptr updates.  So far, au88x0 and some
other drivers appear not working due to this strict check.
However, this check is a nice debug tool, and the capability should be
still kept.

Hence, we disable this check now as default unless the user enables it
by setting the xrun_debug mode to the specific stream via a proc file.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoPCI Hotplug: acpiphp: don't store a pci_dev in acpiphp_func
Alex Chiang [Thu, 21 May 2009 22:21:15 +0000 (16:21 -0600)] 
PCI Hotplug: acpiphp: don't store a pci_dev in acpiphp_func

An oops can occur if a user attempts to use both PCI logical
hotplug and the ACPI physical hotplug driver (acpiphp) in this
sequence, where $slot/address == $device.

In other words, if acpiphp has claimed a PCI device, and that
device is logically removed, then acpiphp may oops when it
attempts to access it again.

# echo 1 > /sys/bus/pci/devices/$device/remove
# echo 0 > /sys/bus/pci/slots/$slot/power

Unable to handle kernel NULL pointer dereference (address 0000000000000000)
Call Trace:
 [<a000000100016390>] show_stack+0x50/0xa0
 [<a000000100016c60>] show_regs+0x820/0x860
 [<a00000010003b390>] die+0x190/0x2a0
 [<a000000100066a40>] ia64_do_page_fault+0x8e0/0xa40
 [<a00000010000c7a0>] ia64_native_leave_kernel+0x0/0x270
 [<a0000001003b2660>] pci_remove_bus_device+0x120/0x260
 [<a0000002060549f0>] acpiphp_disable_slot+0x410/0x540 [acpiphp]
 [<a0000002060505c0>] disable_slot+0xc0/0x120 [acpiphp]
 [<a0000002040d21c0>] power_write_file+0x1e0/0x2a0 [pci_hotplug]
 [<a0000001003bb820>] pci_slot_attr_store+0x60/0xa0
 [<a000000100240f70>] sysfs_write_file+0x230/0x2c0
 [<a000000100195750>] vfs_write+0x190/0x2e0
 [<a0000001001961a0>] sys_write+0x80/0x100
 [<a00000010000c600>] ia64_ret_from_syscall+0x0/0x20
 [<a000000000010720>] __kernel_syscall_via_break+0x0/0x20

The root cause of this oops is that the logical remove ("echo 1 >
/sys/bus/pci/devices/$device/remove") destroyed the pci_dev. The
pci_dev struct itself wasn't deallocated because acpiphp kept a
reference, but some of its fields became invalid.

acpiphp doesn't have any real reason to keep a pointer to a
pci_dev around. It can always derive it using pci_get_slot().

If a logical remove destroys the pci_dev, acpiphp won't find it
and is thus prevented from causing mischief.

Reviewed-by: Matthew Wilcox <willy@linux.intel.com>
Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Tested-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Reported-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoALSA: Fix invalid jiffies check after pause
Takashi Iwai [Wed, 27 May 2009 08:49:26 +0000 (10:49 +0200)] 
ALSA: Fix invalid jiffies check after pause

The hw_ptr_jiffies has to be reset properly to avoid the invalid
check of jiffies delta in snd_pcm_update_hw_ptr*() functions.
Especailly this patch fixes the bogus jiffies check after the puase
and resume.

This patch is a modified version of the original patch by Jaroslav.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoBluetooth: Remove useless flush_work() causing lockdep warnings
Dave Young [Wed, 27 May 2009 07:10:28 +0000 (09:10 +0200)] 
Bluetooth: Remove useless flush_work() causing lockdep warnings

The calls to flush_work() are pointless in a single thread workqueue
and they are actually causing a lockdep warning.

=============================================
[ INFO: possible recursive locking detected ]
2.6.30-rc6-02911-gbb803cf #16
---------------------------------------------
bluetooth/2518 is trying to acquire lock:
 (bluetooth){+.+.+.}, at: [<c0130c14>] flush_work+0x28/0xb0

but task is already holding lock:
 (bluetooth){+.+.+.}, at: [<c0130424>] worker_thread+0x149/0x25e

other info that might help us debug this:
2 locks held by bluetooth/2518:
 #0:  (bluetooth){+.+.+.}, at: [<c0130424>] worker_thread+0x149/0x25e
 #1:  (&conn->work_del){+.+...}, at: [<c0130424>] worker_thread+0x149/0x25e

stack backtrace:
Pid: 2518, comm: bluetooth Not tainted 2.6.30-rc6-02911-gbb803cf #16
Call Trace:
 [<c03d64d9>] ? printk+0xf/0x11
 [<c0140d96>] __lock_acquire+0x7ce/0xb1b
 [<c0141173>] lock_acquire+0x90/0xad
 [<c0130c14>] ? flush_work+0x28/0xb0
 [<c0130c2e>] flush_work+0x42/0xb0
 [<c0130c14>] ? flush_work+0x28/0xb0
 [<f8b84966>] del_conn+0x1c/0x84 [bluetooth]
 [<c0130469>] worker_thread+0x18e/0x25e
 [<c0130424>] ? worker_thread+0x149/0x25e
 [<f8b8494a>] ? del_conn+0x0/0x84 [bluetooth]
 [<c0133843>] ? autoremove_wake_function+0x0/0x33
 [<c01302db>] ? worker_thread+0x0/0x25e
 [<c013355a>] kthread+0x45/0x6b
 [<c0133515>] ? kthread+0x0/0x6b
 [<c01034a7>] kernel_thread_helper+0x7/0x10

Based on a report by Oliver Hartkopp <oliver@hartkopp.net>

Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Tested-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
15 years agopowerpc: Fix up dma_alloc_coherent() on platforms without cache coherency.
Benjamin Herrenschmidt [Wed, 27 May 2009 03:50:33 +0000 (13:50 +1000)] 
powerpc: Fix up dma_alloc_coherent() on platforms without cache coherency.

The implementation we just revived has issues, such as using a
Kconfig-defined virtual address area in kernel space that nothing
actually carves out (and thus will overlap whatever is there),
or having some dependencies on being self contained in a single
PTE page which adds unnecessary constraints on the kernel virtual
address space.

This fixes it by using more classic PTE accessors and automatically
locating the area for consistent memory, carving an appropriate hole
in the kernel virtual address space, leaving only the size of that
area as a Kconfig option. It also brings some dma-mask related fixes
from the ARM implementation which was almost identical initially but
grew its own fixes.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
15 years agopowerpc: Minor cleanups of kernel virt address space definitions
Benjamin Herrenschmidt [Wed, 27 May 2009 03:44:50 +0000 (13:44 +1000)] 
powerpc: Minor cleanups of kernel virt address space definitions

Make FIXADDR_TOP a compile time constant and cleanup a
couple of definitions relative to the layout of the kernel
address space on ppc32. We also print out that layout at
boot time for debugging purposes.

This is a pre-requisite for properly fixing non-coherent
DMA allocactions.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
15 years agopowerpc: Move dma-noncoherent.c from arch/powerpc/lib to arch/powerpc/mm
Benjamin Herrenschmidt [Wed, 27 May 2009 03:36:10 +0000 (13:36 +1000)] 
powerpc: Move dma-noncoherent.c from arch/powerpc/lib to arch/powerpc/mm

(pre-requisite to make the next patches more palatable)

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
15 years agoBlackfin: fix strncmp.o build error
Mike Frysinger [Tue, 26 May 2009 09:03:52 +0000 (05:03 -0400)] 
Blackfin: fix strncmp.o build error

Fix some more fallout of the string changes:

  CC      arch/blackfin/lib/strncmp.o
In file included from include/linux/bitmap.h:9,
                 from include/linux/nodemask.h:90,
                 from include/linux/mmzone.h:17,
                 from include/linux/gfp.h:5,
                 from include/linux/kmod.h:23,
                 from include/linux/module.h:14,
                 from arch/blackfin/lib/strncmp.c:14:
include/linux/string.h: In function ‘strstarts’:
include/linux/string.h:132: error: implicit declaration of function ‘strncmp’
make[1]: *** [arch/blackfin/lib/strncmp.o] Error 1

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
CC: Rusty Russell <rusty@rustcorp.com.au>
15 years agoBlackfin: drop unneeded asm/.gitignore
Mike Frysinger [Wed, 20 May 2009 23:45:39 +0000 (19:45 -0400)] 
Blackfin: drop unneeded asm/.gitignore

We don't create a include/asm/mach/ symlink anymore, so we don't need the
.gitignore for it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
15 years agoBlackfin: ignore generated vmlinux.lds
Mike Frysinger [Tue, 19 May 2009 14:03:22 +0000 (10:03 -0400)] 
Blackfin: ignore generated vmlinux.lds

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
15 years agoMAINTAINERS: drop (subscribers-only) markings on Blackfin lists
Mike Frysinger [Mon, 18 May 2009 08:33:07 +0000 (04:33 -0400)] 
MAINTAINERS: drop (subscribers-only) markings on Blackfin lists

All of the Blackfin lists are transparently moderated for non-subscribers.
i.e. there are no annoying notices and people get whitelisted after first
their posting.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
15 years agoMAINTAINERS: update Blackfin items
Mike Frysinger [Sun, 24 May 2009 06:13:15 +0000 (02:13 -0400)] 
MAINTAINERS: update Blackfin items

With Bryan Wu having moved on to another job, push the slack onto some
other ADI lackeys.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
15 years agoBlackfin: hook up preadv/pwritev syscalls
Mike Frysinger [Tue, 26 May 2009 08:55:38 +0000 (04:55 -0400)] 
Blackfin: hook up preadv/pwritev syscalls

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
15 years agobfin_mac: fix build error due to net_device_ops convert
Mike Frysinger [Wed, 27 May 2009 03:55:33 +0000 (20:55 -0700)] 
bfin_mac: fix build error due to net_device_ops convert

The previous commit "convert to net_device_ops" broke the Blackfin MAC
driver as it declared the new structure before the function it used:
  CC      drivers/net/bfin_mac.o
drivers/net/bfin_mac.c:984: error: ‘bfin_mac_close’ undeclared here (not in a function)
make[1]: *** [drivers/net/bfin_mac.o] Error 1

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agoatlx: move modinfo data from atlx.h to atl1.c
Alex Chiang [Wed, 27 May 2009 03:50:12 +0000 (20:50 -0700)] 
atlx: move modinfo data from atlx.h to atl1.c

Both atl1.c and atl2.c include atlx.h, which defines some modinfo
stuff. But atl2.c seems like it doesn't want the modinfo data
from atlx.h, as it defines its own.

Running modinfo on atl2.ko, we get conflicting information:

$ /sbin/modinfo drivers/net/atlx/atl2.ko | egrep "version|description|author"
version:        2.2.3
description:    Atheros Fast Ethernet Network Driver
author:         Atheros Corporation <xiong.huang@atheros.com>, Chris Snook <csnook@redhat.com>
version:        2.1.3
author:         Xiong Huang <xiong.huang@atheros.com>,  Chris Snook <csnook@redhat.com>, Jay Cliburn <jcliburn@gmail.com>

Move the modinfo data out of atlx.h and into atl1.c to eliminate
the confusion:

$ /sbin/modinfo drivers/net/atlx/atl1.ko | egrep "version|description|author"
version:        2.1.3
author:         Xiong Huang <xiong.huang@atheros.com>,  Chris Snook <csnook@redhat.com>, Jay Cliburn <jcliburn@gmail.com>
description:    Atheros L1 Gigabit Ethernet Driver

$ /sbin/modinfo drivers/net/atlx/atl2.ko | egrep "version|description|author"
version:        2.2.3
description:    Atheros Fast Ethernet Network Driver
author:         Atheros Corporation <xiong.huang@atheros.com>, Chris Snook <csnook@redhat.com>

Reported-by: Scott Scriven <scott.scriven@hp.com>
Signed-off-by: Alex Chiang <achiang@hp.com>
Acked-by: Jay Cliburn <jcliburn@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agogianfar: fix babbling rx error event bug
Xiaotian Feng [Wed, 27 May 2009 03:48:04 +0000 (20:48 -0700)] 
gianfar: fix babbling rx error event bug

Gianfar interrupt handler uses IEVENT_ERR_MASK to check and handle errors.
Babbling RX error (IEVENT_BABR) should be included in IEVENT_ERROR_MASK.
Otherwise if BABR is raised, it never gets handled nor cleared, and an
interrupt storm results. This has been observed to happen on sending a
burst of ethernet frames to a gianfar based board.

Signed-off-by: Xiaotian Feng <xiaotian.feng@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agocls_cgroup: read classid atomically in classifier
Paul Menage [Wed, 27 May 2009 03:47:02 +0000 (20:47 -0700)] 
cls_cgroup: read classid atomically in classifier

Avoid reading the unsynchronized value cs->classid multiple times,
since it could change concurrently from non-zero to zero; this would
result in the classifier returning a positive result with a bogus
(zero) classid.

Signed-off-by: Paul Menage <menage@google.com>
Reviewed-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agocpuidle: fix AMD C1E suspend hang
Shaohua Li [Tue, 19 May 2009 08:09:54 +0000 (16:09 +0800)] 
cpuidle: fix AMD C1E suspend hang

When AMD C1E is enabled, local APIC timer will stop even in C1. To avoid
suspend/resume hang, this patch removes C1 and replace it with a cpu_relax() in
suspend/resume path. This hasn't any impact in runtime path.

http://bugzilla.kernel.org/show_bug.cgi?id=13233

[ impact: avoid suspend/resume hang in AMD CPU with C1E enabled ]

Tested-by: Dmitry Lyzhyn <thisistempbox@yahoo.com>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agocpuidle: makes AMD C1E work in acpi_idle
Shaohua Li [Tue, 19 May 2009 08:09:42 +0000 (16:09 +0800)] 
cpuidle: makes AMD C1E work in acpi_idle

When AMD C1E is enabled, local APIC timer will stop even in C1.
This patch uses broadcast IPI to replace local APIC timer in C1.

http://bugzilla.kernel.org/show_bug.cgi?id=13233

[ impact: avoid boot hang in AMD CPU with C1E enabled ]

Tested-by: Dmitry Lyzhyn <thisistempbox@yahoo.com>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
15 years agoRevert "powerpc: Rework dma-noncoherent to use generic vmalloc layer"
Benjamin Herrenschmidt [Wed, 27 May 2009 03:33:14 +0000 (13:33 +1000)] 
Revert "powerpc: Rework dma-noncoherent to use generic vmalloc layer"

This reverts commit 33f00dcedb0e22cdb156a23632814fc580fcfcf8.

    While it was a good idea to try to use the mm/vmalloc.c allocator instead
    of our own (in fact, ours is itself a dup on an old variant of the vmalloc
    one), unfortunately, the approach is terminally busted since
    dma_alloc_coherent() can be called at interrupt time or in atomic contexts
    and there's little chances we'll make the code in mm/vmalloc.c cope with\       that :-(

    Until we can get the generic code to forbid that idiocy and fix all
    drivers abusing it, we pretty much have no choice but revert to
    our custom virtual space allocator.

    There's also a problem with SMP safety since freeing such mapping
    would require an IPI which cannot be done at interrupt time.

    However, right now, I don't think we support any platform that is
    both SMP and has non-coherent DMA (don't laugh, I know such things
    do exist !) so we can sort that out later.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
15 years agodrm/i915: Apply a big hammer to 865 GEM object CPU cache flushing.
Eric Anholt [Wed, 27 May 2009 01:46:16 +0000 (18:46 -0700)] 
drm/i915: Apply a big hammer to 865 GEM object CPU cache flushing.

On the 865, but not the 855, the clflush we do appears to not actually make
it out to the hardware all the time.  An easy way to safely reproduce was
X -retro, which would show that some of the blits involved in drawing the
lovely root weave didn't make it out to the hardware.  Those blits are 32
bytes each, and 1-2 would be missing at various points around the screen.
Other experimentation (doing more clflush, doing more AGP chipset flush,
poking at some more device registers to maybe trigger more flushing) didn't
help.  krh came up with the wbinvd as a way to successfully get all those
blits to appear.

Signed-off-by: Eric Anholt <eric@anholt.net>
15 years agodrm/i915: Fix tiling pitch handling on 8xx.
Eric Anholt [Wed, 27 May 2009 00:44:56 +0000 (17:44 -0700)] 
drm/i915: Fix tiling pitch handling on 8xx.

The pitch field is an exponent on pre-965, so we were rejecting buffers
on 8xx that we shouldn't have.  915 got lucky in that the largest legal
value happened to match (8KB / 512 = 0x10), but 8xx has a smaller tile width.
Additionally, we programmed that bad value into the register on 8xx, so the
only pitch that would work correctly was 4096 (512-1023 pixels), while others
would probably give bad rendering or hangs.

Signed-off-by: Eric Anholt <eric@anholt.net>
fd.o bug #20473.

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris...
Linus Torvalds [Wed, 27 May 2009 01:03:40 +0000 (18:03 -0700)] 
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/security-testing-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  tomoyo: add missing call to cap_bprm_set_creds

15 years agotomoyo: add missing call to cap_bprm_set_creds
Herton Ronaldo Krzesinski [Tue, 26 May 2009 03:15:53 +0000 (12:15 +0900)] 
tomoyo: add missing call to cap_bprm_set_creds

cap_bprm_set_creds() has to be called from security_bprm_set_creds().
TOMOYO forgot to call cap_bprm_set_creds() from tomoyo_bprm_set_creds()
and suid executables were not being working.

Make sure we call cap_bprm_set_creds() with TOMOYO, to set credentials
properly inside tomoyo_bprm_set_creds().

Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Acked-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
15 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Tue, 26 May 2009 22:06:12 +0000 (15:06 -0700)] 
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: avoid back to back on_each_cpu in cpa_flush_array
  x86, relocs: ignore R_386_NONE in kernel relocation entries

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt...
Linus Torvalds [Tue, 26 May 2009 21:48:36 +0000 (14:48 -0700)] 
Merge branch 'for-linus' of git://git./linux/kernel/git/anholt/drm-intel

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel:
  drm/i915: Add support for VGA load detection (pre-945).
  drm/i915: Use an I2C algo to do the flip to SDVO DDC bus.
  drm/i915: Determine type before initialising connector
  drm/i915: Return SDVO LVDS VBT mode if no EDID modes are detected.
  drm/i915: Fetch SDVO LVDS mode lines from VBT, then reserve them
  i915: support 8xx desktop cursors
  drm/i915: allocate large pointer arrays with vmalloc

15 years agoMerge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Tue, 26 May 2009 21:48:03 +0000 (14:48 -0700)] 
Merge branch 'core-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  oprofile: fix cpu buffer size

15 years agox86: avoid back to back on_each_cpu in cpa_flush_array
Pallipadi, Venkatesh [Tue, 26 May 2009 17:33:35 +0000 (10:33 -0700)] 
x86: avoid back to back on_each_cpu in cpa_flush_array

Cleanup cpa_flush_array() to avoid back to back on_each_cpu() calls.

[ Impact: optimizes fix 0af48f42df15b97080b450d24219dd95db7b929a ]

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
15 years agoMerge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
Linus Torvalds [Tue, 26 May 2009 19:15:35 +0000 (12:15 -0700)] 
Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6

* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
  NFSv4: Fix the case where NFSv4 renewal fails
  nfs: fix build error in nfsroot with initconst
  XPRTRDMA: fix client rpcrdma FRMR registration on mlx4 devices

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Tue, 26 May 2009 19:14:46 +0000 (12:14 -0700)] 
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda - Add missing check of pin vref 50 and others in Realtek codecs
  ALSA: hda - Add 5stack-no-fp model for STAC927x
  ALSA: hda - Add forced codec-slots for ASUS W5Fm

15 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
Linus Torvalds [Tue, 26 May 2009 19:13:33 +0000 (12:13 -0700)] 
Merge branch 'fixes' of git://git./linux/kernel/git/davej/cpufreq

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] powernow-k8: determine exact CPU frequency for HW Pstates
  [CPUFREQ] powernow-k8 cleanup msg if BIOS does not export ACPI _PSS cpufreq data
  [CPUFREQ] fix timer teardown in ondemand governor
  [CPUFREQ] fix timer teardown in conservative governor
  [CPUFREQ] remove rwsem lock from CPUFREQ_GOV_STOP call
  [CPUFREQ] powernow-k7 build fix when ACPI=n
  [CPUFREQ] add atom family to p4-clockmod

15 years agolguest: fix on Intel when KVM loaded (unhandled trap 13)
Rusty Russell [Tue, 26 May 2009 11:24:41 +0000 (20:54 +0930)] 
lguest: fix on Intel when KVM loaded (unhandled trap 13)

When KVM is loaded, and hence VT set up, the vmcall instruction in an
lguest guest causes a #GP, not #UD.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agokmod: Release sub_info on cred allocation failure.
Tetsuo Handa [Tue, 26 May 2009 08:11:03 +0000 (09:11 +0100)] 
kmod: Release sub_info on cred allocation failure.

call_usermodehelper_setup() forgot to kfree(sub_info)
when prepare_usermodehelper_creds() failed.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Tue, 26 May 2009 19:10:19 +0000 (12:10 -0700)] 
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (21 commits)
  r8169: avoid losing MSI interrupts
  tcp: tcp_vegas ssthresh bugfix
  mac8390: fix regression caused during net_device_ops conversion
  gianfar: fix BUG under load after introduction of skb recycling
  wimax/i2400m: usb: fix device reset on autosuspend while not yet idle
  RxRPC: Error handling for rxrpc_alloc_connection()
  ipv4: Fix oops with FIB_TRIE
  pktgen: do not access flows[] beyond its length
  gigaset: beyond ARRAY_SIZE of iwb->data
  IPv6: set RTPROT_KERNEL to initial route
  net: fix rtable leak in net/ipv4/route.c
  net: fix length computation in rt_check_expire()
  wireless: beyond ARRAY_SIZE of intf->crypto_stats
  iwlwifi: update 5000 ucode support to version 2 of API
  cfg80211: fix race between core hint and driver's custom apply
  airo: fix airo_get_encode{,ext} buffer overflow like I mean it...
  ath5k: fix interpolation with equal power levels
  iwlwifi: do not cancel delayed work inside spin_lock_irqsave
  ath5k: fix exp off-by-one when computing OFDM delta slope
  wext: verify buffer size for SIOCSIWENCODEEXT
  ...

15 years agoMerge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Linus Torvalds [Tue, 26 May 2009 19:09:32 +0000 (12:09 -0700)] 
Merge branch 'merge' of git://git./linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/mm: Fix broken MMU PID stealing on !SMP

15 years agoMerge branch 'for-linus' of git://neil.brown.name/md
Linus Torvalds [Tue, 26 May 2009 19:09:03 +0000 (12:09 -0700)] 
Merge branch 'for-linus' of git://neil.brown.name/md

* 'for-linus' of git://neil.brown.name/md:
  md: don't use locked_ioctl.
  md: don't update curr_resync_completed without also updating reshape_position.
  md: raid5: avoid sector values going negative when testing reshape progress.
  md: export 'frozen' resync state through sysfs
  md: bitmap: improve bitmap maintenance code.
  md: improve errno return when setting array_size
  md: always update level / chunk_size / layout when writing v1.x metadata.

15 years agoNFSv4: Fix the case where NFSv4 renewal fails
Trond Myklebust [Tue, 26 May 2009 18:51:00 +0000 (14:51 -0400)] 
NFSv4: Fix the case where NFSv4 renewal fails

If the asynchronous lease renewal fails (usually due to a soft timeout),
then we _must_ schedule state recovery in order to ensure that we don't
lose the lease unnecessarily or, if the lease is already lost, that we
recover the locking state promptly...

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
15 years agonfs: fix build error in nfsroot with initconst
Sam Ravnborg [Tue, 26 May 2009 18:51:00 +0000 (14:51 -0400)] 
nfs: fix build error in nfsroot with initconst

fix build error with latest kbuild adjustments to initconst.

The commit a447c0932445f92ce6f4c1bd020f62c5097a7842 ("vfs: Use
const for kernel parser table") changed:

    static match_table_t __initdata tokens = {
to
    static match_table_t __initconst tokens = {

But the missing const causes popwerpc to fail with latest
updates to __initconst like this:

fs/nfs/nfsroot.c:400: error: __setup_str_nfs_root_setup causes a section type conflict
fs/nfs/nfsroot.c:400: error: __setup_str_nfs_root_setup causes a section type conflict

The bug is only present with kbuild-next.
Following patch has been build tested.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
15 years agoXPRTRDMA: fix client rpcrdma FRMR registration on mlx4 devices
Vu Pham [Tue, 26 May 2009 18:51:00 +0000 (14:51 -0400)] 
XPRTRDMA: fix client rpcrdma FRMR registration on mlx4 devices

mlx4/connectX FRMR requires local write enable together with remote
rdma write enable. This fixes NFS/RDMA operation over the ConnectX
Infiniband HCA in the default memreg mode.

Signed-off-by: Vu Pham <vu@mellanox.com>
Signed-off-by: Tom Talpey <tmtalpey@gmail.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
15 years agodrm/i915: Add support for VGA load detection (pre-945).
Ma Ling [Tue, 26 May 2009 03:31:00 +0000 (11:31 +0800)] 
drm/i915: Add support for VGA load detection (pre-945).

Two approaches for VGA detections: hot plug detection for 945G onwards
and load pipe detection for Pre-945G.  Load pipe detection will get one free
pipe, set border color as red and blue, then check CRT status by
swf register.  This is a sync-up with the 2D driver.

Signed-off-by: Ma Ling <ling.ma@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
15 years ago[CPUFREQ] powernow-k8: determine exact CPU frequency for HW Pstates
Andreas Herrmann [Wed, 22 Apr 2009 11:48:33 +0000 (13:48 +0200)] 
[CPUFREQ] powernow-k8: determine exact CPU frequency for HW Pstates

Slightly modified by trenn@suse.de -> only do this on fam 10h and fam 11h.

Currently powernow-k8 determines CPU frequency from ACPI PSS objects, but
according to AMD family 11h BKDG this frequency is just a rounded value:

  "CoreFreq (MHz) = The CPU COF specified by MSRC001_00[6B:64][CpuFid]
  rounded to the nearest 100 Mhz."

As a consequnce powernow-k8 reports wrong CPU frequency on some systems,
e.g. on Turion X2 Ultra:

  powernow-k8: Found 1 AMD Turion(tm)X2 Ultra DualCore Mobile ZM-82
               processors (2 cpu cores) (version 2.20.00)
  powernow-k8:    0 : pstate 0 (2200 MHz)
  powernow-k8:    1 : pstate 1 (1100 MHz)
  powernow-k8:    2 : pstate 2 (600 MHz)

But this is wrong as frequency for Pstate2 is 550 MHz. x86info reports it
correctly:

  #x86info -a |grep Pstate
  ...
  Pstate-0: fid=e, did=0, vid=24 (2200MHz)
  Pstate-1: fid=e, did=1, vid=30 (1100MHz)
  Pstate-2: fid=e, did=2, vid=3c (550MHz) (current)

Solution is to determine the frequency directly from Pstate MSRs instead
of using rounded values from ACPI table.

Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Dave Jones <davej@redhat.com>
15 years ago[CPUFREQ] powernow-k8 cleanup msg if BIOS does not export ACPI _PSS cpufreq data
Thomas Renninger [Wed, 22 Apr 2009 11:48:32 +0000 (13:48 +0200)] 
[CPUFREQ] powernow-k8 cleanup msg if BIOS does not export ACPI _PSS cpufreq data

- Make the message shorter and easier to grep for
- Use printk_once instead of WARN_ONCE (functionality of these was mixed)

Signed-off-by: Thomas Renninger <trenn@suse.de>
Cc: Langsdorf, Mark <mark.langsdorf@amd.com>
Signed-off-by: Dave Jones <davej@redhat.com>
15 years ago[CPUFREQ] fix timer teardown in ondemand governor
Mathieu Desnoyers [Sun, 17 May 2009 14:30:45 +0000 (10:30 -0400)] 
[CPUFREQ] fix timer teardown in ondemand governor

* Rafael J. Wysocki (rjw@sisk.pl) wrote:
> This message has been generated automatically as a part of a report
> of regressions introduced between 2.6.28 and 2.6.29.
>
> The following bug entry is on the current list of known regressions
> introduced between 2.6.28 and 2.6.29.  Please verify if it still should
> be listed and let me know (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13186
> Subject : cpufreq timer teardown problem
> Submitter : Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
> Date : 2009-04-23 14:00 (24 days old)
> References : http://marc.info/?l=linux-kernel&m=124049523515036&w=4
> Handled-By : Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
> Patch : http://patchwork.kernel.org/patch/19754/
>    http://patchwork.kernel.org/patch/19753/
>

(updated changelog)

cpufreq fix timer teardown in ondemand governor

The problem is that dbs_timer_exit() uses cancel_delayed_work() when it should
use cancel_delayed_work_sync(). cancel_delayed_work() does not wait for the
workqueue handler to exit.

The ondemand governor does not seem to be affected because the
"if (!dbs_info->enable)" check at the beginning of the workqueue handler returns
immediately without rescheduling the work. The conservative governor in
2.6.30-rc has the same check as the ondemand governor, which makes things
usually run smoothly. However, if the governor is quickly stopped and then
started, this could lead to the following race :

dbs_enable could be reenabled and multiple do_dbs_timer handlers would run.
This is why a synchronized teardown is required.

The following patch applies to, at least, 2.6.28.x, 2.6.29.1, 2.6.30-rc2.

Depends on patch
cpufreq: remove rwsem lock from CPUFREQ_GOV_STOP call

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: gregkh@suse.de
CC: stable@kernel.org
CC: cpufreq@vger.kernel.org
CC: Ingo Molnar <mingo@elte.hu>
CC: rjw@sisk.pl
CC: Ben Slusky <sluskyb@paranoiacs.org>
Signed-off-by: Dave Jones <davej@redhat.com>
15 years ago[CPUFREQ] fix timer teardown in conservative governor
Mathieu Desnoyers [Sun, 17 May 2009 14:29:33 +0000 (10:29 -0400)] 
[CPUFREQ] fix timer teardown in conservative governor

* Rafael J. Wysocki (rjw@sisk.pl) wrote:
> This message has been generated automatically as a part of a report
> of regressions introduced between 2.6.28 and 2.6.29.
>
> The following bug entry is on the current list of known regressions
> introduced between 2.6.28 and 2.6.29.  Please verify if it still should
> be listed and let me know (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13186
> Subject : cpufreq timer teardown problem
> Submitter : Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
> Date : 2009-04-23 14:00 (24 days old)
> References : http://marc.info/?l=linux-kernel&m=124049523515036&w=4
> Handled-By : Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
> Patch : http://patchwork.kernel.org/patch/19754/
>    http://patchwork.kernel.org/patch/19753/
>

(re-send with updated changelog)

cpufreq fix timer teardown in conservative governor

The problem is that dbs_timer_exit() uses cancel_delayed_work() when it should
use cancel_delayed_work_sync(). cancel_delayed_work() does not wait for the
workqueue handler to exit.

The ondemand governor does not seem to be affected because the
"if (!dbs_info->enable)" check at the beginning of the workqueue handler returns
immediately without rescheduling the work. The conservative governor in
2.6.30-rc has the same check as the ondemand governor, which makes things
usually run smoothly. However, if the governor is quickly stopped and then
started, this could lead to the following race :

dbs_enable could be reenabled and multiple do_dbs_timer handlers would run.
This is why a synchronized teardown is required.

Depends on patch
cpufreq: remove rwsem lock from CPUFREQ_GOV_STOP call

The following patch applies to 2.6.30-rc2. Stable kernels have a similar
issue which should also be fixed, but the code changed between 2.6.29
and 2.6.30, so this patch only applies to 2.6.30-rc.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: gregkh@suse.de
CC: stable@kernel.org
CC: cpufreq@vger.kernel.org
CC: Ingo Molnar <mingo@elte.hu>
CC: rjw@sisk.pl
CC: Ben Slusky <sluskyb@paranoiacs.org>
Signed-off-by: Dave Jones <davej@redhat.com>
15 years ago[CPUFREQ] remove rwsem lock from CPUFREQ_GOV_STOP call
Mathieu Desnoyers [Sun, 17 May 2009 14:23:52 +0000 (10:23 -0400)] 
[CPUFREQ] remove rwsem lock from CPUFREQ_GOV_STOP call

* Rafael J. Wysocki (rjw@sisk.pl) wrote:
> This message has been generated automatically as a part of a report
> of regressions introduced between 2.6.28 and 2.6.29.
>
> The following bug entry is on the current list of known regressions
> introduced between 2.6.28 and 2.6.29.  Please verify if it still should
> be listed and let me know (either way).
>
>
> Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13186
> Subject : cpufreq timer teardown problem
> Submitter : Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
> Date : 2009-04-23 14:00 (24 days old)
> References : http://marc.info/?l=linux-kernel&m=124049523515036&w=4
> Handled-By : Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
> Patch : http://patchwork.kernel.org/patch/19754/
>    http://patchwork.kernel.org/patch/19753/

The patches linked above depend on the following patch to remove
circular locking dependency :

cpufreq: remove rwsem lock from CPUFREQ_GOV_STOP call

(the following issue was faced when using cancel_delayed_work_sync() in the
timer teardown (which fixes a race).

* KOSAKI Motohiro (kosaki.motohiro@jp.fujitsu.com) wrote:
> Hi
>
> my box output following warnings.
> it seems regression by commit 7ccc7608b836e58fbacf65ee4f8eefa288e86fac.
>
> A: work -> do_dbs_timer()  -> cpu_policy_rwsem
> B: store() -> cpu_policy_rwsem -> cpufreq_governor_dbs() -> work
>
>

Hrm, I think it must be due to my attempt to fix the timer teardown race
in ondemand governor mixed with new locking behavior in 2.6.30-rc.

The rwlock seems to be taken around the whole call to
cpufreq_governor_dbs(), when it should be only taken around accesses to
the locked data, and especially *not* around the call to
dbs_timer_exit().

Reverting my fix attempt would put the teardown race back in place
(replacing the cancel_delayed_work_sync by cancel_delayed_work).
Instead, a proper fix would imply modifying this critical section :

cpufreq.c: __cpufreq_remove_dev()
...
        if (cpufreq_driver->target)
                __cpufreq_governor(data, CPUFREQ_GOV_STOP);

        unlock_policy_rwsem_write(cpu);

To make sure the __cpufreq_governor() callback is not called with rwsem
held. This would allow execution of cancel_delayed_work_sync() without
being nested within the rwsem.

Applies on top of the 2.6.30-rc5 tree.

Required to remove circular dep in teardown of both conservative and
ondemande governors so they can use cancel_delayed_work_sync().
CPUFREQ_GOV_STOP does not modify the policy, therefore this locking seemed
unneeded.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
CC: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Greg KH <greg@kroah.com>
CC: Ingo Molnar <mingo@elte.hu>
CC: "Rafael J. Wysocki" <rjw@sisk.pl>
CC: Ben Slusky <sluskyb@paranoiacs.org>
CC: Chris Wright <chrisw@sous-sol.org>
CC: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Jones <davej@redhat.com>
15 years ago[CPUFREQ] powernow-k7 build fix when ACPI=n
Dave Jones [Thu, 23 Apr 2009 17:36:12 +0000 (13:36 -0400)] 
[CPUFREQ] powernow-k7 build fix when ACPI=n

arch/x86/kernel/cpu/cpufreq/powernow-k7.c:172: warning: 'invalidate_entry' defined but not used

Reported-by: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Dave Jones <davej@redhat.com>
15 years ago[CPUFREQ] add atom family to p4-clockmod
Jarod Wilson [Fri, 6 Mar 2009 20:24:57 +0000 (20:24 +0000)] 
[CPUFREQ] add atom family to p4-clockmod

Some atom procs don't do freq scaling (such as the atom 330 on my own
littlefalls2 board). By adding the atom family here, we at least get
the benefit of passive cooling in a thermal emergency. Not sure how
to see that its actually helping any, but the driver does bind and
claim its functioning on my atom 330.

Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Dave Jones <davej@redhat.com>
15 years agoMerge branch 'linux-2.6.30.y' of git://git.kernel.org/pub/scm/linux/kernel/git/inaky...
David S. Miller [Tue, 26 May 2009 05:56:11 +0000 (22:56 -0700)] 
Merge branch 'linux-2.6.30.y' of git://git./linux/kernel/git/inaky/wimax

15 years agor8169: avoid losing MSI interrupts
David Dillow [Fri, 22 May 2009 15:29:34 +0000 (15:29 +0000)] 
r8169: avoid losing MSI interrupts

The 8169 chip only generates MSI interrupts when all enabled event
sources are quiescent and one or more sources transition to active. If
not all of the active events are acknowledged, or a new event becomes
active while the existing ones are cleared in the handler, we will not
see a new interrupt.

The current interrupt handler masks off the Rx and Tx events once the
NAPI handler has been scheduled, which opens a race window in which we
can get another Rx or Tx event and never ACK'ing it, stopping all
activity until the link is reset (ifconfig down/up). Fix this by always
ACK'ing all event sources, and loop in the handler until we have all
sources quiescent.

Signed-off-by: David Dillow <dave@thedillows.org>
Tested-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agox86, relocs: ignore R_386_NONE in kernel relocation entries
Tejun Heo [Tue, 26 May 2009 05:42:40 +0000 (14:42 +0900)] 
x86, relocs: ignore R_386_NONE in kernel relocation entries

For relocatable 32bit kernels, boot/compressed/relocs.c processes
relocation entries in the kernel image and appends it to the kernel
image such that boot/compressed/head_32.S can relocate the kernel.
The kernel image is one statically linked object and only uses two
relocation types - R_386_PC32 and R_386_32, of the two only the latter
needs massaging during kernel relocation and thus handled by relocs.
R_386_PC32 is ignored and all other relocation types are considered
error.

When the target of a relocation resides in a discarded section,
binutils doesn't throw away the relocation record but nullifies it by
changing it to R_386_NONE, which unfortunately makes relocs fail.

The problem was triggered by yet out-of-tree x86 stack unwind patches
but given the binutils behavior, ignoring R_386_NONE is the right
thing to do.

The problem has been tracked down to binutils behavior by Jan Beulich.

[ Impact: fix build with certain binutils by ignoring R_386_NONE ]

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jan Beulich <JBeulich@novell.com>
Cc: Ingo Molnar <mingo@elte.hu>
LKML-Reference: <4A1B8150.40702@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
15 years agotcp: tcp_vegas ssthresh bugfix
Doug Leith [Tue, 26 May 2009 05:44:59 +0000 (22:44 -0700)] 
tcp: tcp_vegas ssthresh bugfix

This patch fixes ssthresh accounting issues in tcp_vegas when cwnd decreases

Signed-off-by: Doug Leith <doug.leith@nuim.ie>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agomac8390: fix regression caused during net_device_ops conversion
Finn Thain [Tue, 26 May 2009 05:43:49 +0000 (22:43 -0700)] 
mac8390: fix regression caused during net_device_ops conversion

Changeset ca17584bf2ad1b1e37a5c0e4386728cc5fc9dabc ("mac8390: update
to net_device_ops") broke mac8390 by adding 8390.o to the link. That
meant that lib8390.c was included twice, once in mac8390.c and once in
8390.c, subject to different macros. This patch reverts that by
avoiding the wrappers in 8390.c. They seem to be of no value since
COMPAT_NET_DEV_OPS is going away soon.

Tested with a Kinetics EtherPort card.

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
15 years agopowerpc/mm: Fix broken MMU PID stealing on !SMP
Hideo Saito [Sun, 24 May 2009 15:33:34 +0000 (15:33 +0000)] 
powerpc/mm: Fix broken MMU PID stealing on !SMP

The recent rework of the MMU PID handling for non-hash CPUs has a
subtle bug in the !SMP "optimized" variant of the PID stealing
function.  It clears the PID in the mm context before it calls
local_flush_tlb_mm(). However, the later will not flush anything
if the PID in the context is clear...

Signed-off-by: Hideo Saito <hsaito.ppc@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
15 years agomd: don't use locked_ioctl.
NeilBrown [Tue, 26 May 2009 02:57:36 +0000 (12:57 +1000)] 
md: don't use locked_ioctl.

md has no need for the BKL - it does its own locking.
So md_ioctl doesn't need to be a locked_ioctl.

Signed-off-by: NeilBrown <neilb@suse.de>
15 years agomd: don't update curr_resync_completed without also updating reshape_position.
NeilBrown [Tue, 26 May 2009 02:57:21 +0000 (12:57 +1000)] 
md: don't update curr_resync_completed without also updating reshape_position.

In order for the metadata to always be consistent, we mustn't updated
curr_resync_completed without also updating reshape_position.

The reshape code updates both at the same time.  However since
commit 97e4f42d62badb0f9fbc27c013e89bc1336a03bc
the common md_do_sync will sometimes update curr_resync_completed
but is not in a position to update reshape_position.
So if MD_RECOVERY_RESHAPE is set (indicating that a reshape is
happening, so reshape_position might change), don't update
curr_resync_completed in md_do_sync, leave it to the per-personality
reshape code.

Signed-off-by: NeilBrown <neilb@suse.de>