linux-2.6-microblaze.git
13 years agoisci: Removed special macros that does 64bit address math
Dave Jiang [Tue, 22 Feb 2011 23:39:32 +0000 (16:39 -0700)]
isci: Removed special macros that does 64bit address math

These macros are not necessary. We can do 64bit math directly.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: fix for asserts during aborts/resets to SAS/SATA in APC mode
Piotr Sawicki [Wed, 23 Feb 2011 08:09:14 +0000 (00:09 -0800)]
isci: fix for asserts during aborts/resets to SAS/SATA in APC mode

Sending aborts/resets to SAS/SATA targets in APC mode eventually causes
an assert in scic_sds_apc_agent_link_up().  We need to handle the hard reset
case for apc mode ports.

Signed-off-by: Piotr Sawicki <piotr.sawicki@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: Add Support for new TC completion codes
Tomasz Chudy [Wed, 23 Feb 2011 08:09:04 +0000 (00:09 -0800)]
isci: Add Support for new TC completion codes

Update the SCI Core to comprehend the changes in the TC completion
codes from A0 to B0.  Specifically, there isnew R_ER code
differences for command and data FISes.

Changes are as follows:

1) 0x16 now additionally indicates an R_ERR received for a COMMAND
FIS being sent to a SATA target.  0x16 for SSP still indicates a
NAK received for a COMMAND frame.  Fix is to retry TC to be compliant
with SATA spec or ensure proper error handling of return value
(not spec compliant I don't believe).
2) 0x1B was previously called DONE_BREAK_RCVD for STP and
DONE_LL_ABORT_ERR for SSP.  Now it is universally called
DONE_LL_ABORT_ERR.  This is purely a superficial change.
3) 0x32 is no longer a reserved code.  Now it indicates
DONE_CMD_SDMA_ERR for STP/SSP.  There was a fatal error on the
SDMA for a command IU (includes Raw frames).  Consider retry,
but at a minimum gracefully fail the request.
4) 0x33 is no longer a reserved code.  Now it indicates
DONE_CMD_LL_ABORT_ERR for SSP.  There was a break receivd
during transmission of a command IU.  Consider retry, but
at a minimum gracefully fail the request.

Signed-off-by: Tomasz Chudy <Tomasz.Chudy@intel.com>
Signed-off-by: Jacek Danecki <Jacek.Danecki@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: clean up remaining silicon revision ifdefs in phy init
Dan Williams [Wed, 23 Feb 2011 08:09:01 +0000 (00:09 -0800)]
isci: clean up remaining silicon revision ifdefs in phy init

Use the dynamic revision detection code in
scic_sds_phy_link_layer_initialization() and apply some coding style
fixups (long deref chains).  The compile time max link rate setting is
removed in favor of honoring the user-parameter max.

Reported-by: Krzysztof Wierzbicki <Krzysztof.Wierzbicki@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: Add support for user parameters in SCIC layer
Jacek Danecki [Wed, 23 Feb 2011 08:08:58 +0000 (00:08 -0800)]
isci: Add support for user parameters in SCIC layer

Add support for the following parameters in SCIC:

     /**
       * This field specifies the NOTIFY (ENABLE SPIN UP) primitive
       * insertion frequency for this phy index.
       */
      u32  notify_enable_spin_up_insertion_frequency;

      /**
       * This method specifies the number of transmitted DWORDs within which
       * to transmit a single ALIGN primitive.  This value applies regardless
       * of what type of device is attached or connection state.  A value of
       * 0 indicates that no ALIGN primitives will be inserted.
       */
      u16  align_insertion_frequency;

      /**
       * This method specifies the number of transmitted DWORDs within which
       * to transmit 2 ALIGN primitives.  This applies for SAS connections
       * only.  A minimum value of 3 is required for this field.
       */
      u16  in_connection_align_insertion_frequency;

Signed-off-by: Krzysztof Wierzbicki <Krzysztof.Wierzbicki@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: Move transport layer registers from port to phy
Henryk Dembkowski [Wed, 23 Feb 2011 08:08:52 +0000 (00:08 -0800)]
isci: Move transport layer registers from port to phy

At init and RNC resume we need to touch every phy in a port to be sure
we have initialized STP properties in the case where port_index !=
phy_index.  Also add some missing __iomem annotations.

Signed-off-by: Henryk Dembkowski <henryk.dembkowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: fix "no outbound task timeout" default value
Tomasz Chudy [Wed, 23 Feb 2011 08:08:49 +0000 (00:08 -0800)]
isci: fix "no outbound task timeout" default value

The default should be 5us.  The hardware encodes it in 256ns increments,
so the value should be 20 to approximate a 5us timeout.

Signed-off-by: Tomasz Chudy <Tomasz.Chudy@intel.com>
Signed-off-by: Jacek Danecki <Jacek.Danecki@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: phy state machine cleanup step1
Dan Williams [Wed, 23 Feb 2011 08:14:06 +0000 (00:14 -0800)]
isci: phy state machine cleanup step1

 c99 the struct initializers:
1/ allows grep to consistently show method name associations.  The
   naming is mostly consistent (except when it isn't) so this guarantees
   coverage of present and future exception cases.
2/ let's the compiler guarantee that the state table array entry
   correlates with an actual state name and detect accidental reordering or
   deletion of states.
/ allows default handler's to be identified easily

Signed-off-by: Jacek Danecki <Jacek.Danecki@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: Move firmware loading to per PCI device
Dave Jiang [Tue, 22 Feb 2011 09:27:03 +0000 (01:27 -0800)]
isci: Move firmware loading to per PCI device

Moved the firmware loading from per adapter to per PCI device. This should
prevent firmware from being loaded twice becuase of 2 SCU controller per
PCI device. We do have to do it per PCI device because request_firmware()
requires a struct device passed in.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: Initialize proc_name field in scsi_host_template
Havard Skinnemoen [Sat, 19 Feb 2011 02:32:08 +0000 (18:32 -0800)]
isci: Initialize proc_name field in scsi_host_template

The proc_name field in struct scsi_host_template is exported through sysfs and
allows userspace tools to identify the driver behind a particular SCSI host
controller.

Initialize this field so that userspace tools can easily identify isci host
controllers through sysfs.

Signed-off-by: Havard Skinnemoen <hskinnemoen@google.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: remove scic_controller_get_handler_methods and ilk
Edmund Nadolski [Fri, 18 Feb 2011 17:25:17 +0000 (09:25 -0800)]
isci: remove scic_controller_get_handler_methods and ilk

This removes scic_controller_get_handler_methods and its
associated unused code.

Signed-off-by: Edmund Nadolski <edmund.nadolski@intel.com>
[djbw: kill off the legacy handler, now that we have basic error isr support]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: debug fixes
Dan Williams [Fri, 18 Feb 2011 17:25:15 +0000 (09:25 -0800)]
isci: debug fixes

Some of the chain walks to get back to our dev are invalid.

isci_remote_device_change_state: delete rather than adding conditional deref
chain walking
isci_request_change_state: fix, it was being called too early
isci_request_ssp_io_request_get_lun: fix compile breakage hidden by ifdef DEBUG

Signed-off-by: Maciej Trela <maciej.trela@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: advertise linkrate
Dan Williams [Fri, 18 Feb 2011 17:25:13 +0000 (09:25 -0800)]
isci: advertise linkrate

Inform libsas of the linkrate of direct attached links.

Reported-by: Haavard Skinnemoen <hskinnemoen@gmail.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: implement error isr
Dan Williams [Fri, 18 Feb 2011 17:25:11 +0000 (09:25 -0800)]
isci: implement error isr

Add basic support for handling/reporting error interrupts.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: enable interrupts during controller start, and flush discovery
Edmund Nadolski [Fri, 18 Feb 2011 17:25:09 +0000 (09:25 -0800)]
isci: enable interrupts during controller start, and flush discovery

Polling the event queue during scan is an unneeded holdover from the
original driver.

Signed-off-by: Edmund Nadolski <edmund.nadolski@intel.com>
[djbw: ensure we flush all port events and domain discovery]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: cleanup "starting" state handling
Dan Williams [Fri, 18 Feb 2011 17:25:07 +0000 (09:25 -0800)]
isci: cleanup "starting" state handling

The lldd actively disallows requests in the "starting" state.  Retrying
or holding off commands in this state is sub-optimal:
1/ it adds another state check to the fast path
2/ retrying can cause libsas to give up

However, isci's ->lldd_dev_found() routine already waits for controller
start to complete before allowing further progress.  Checking the
"starting" state in isci_task_execute_task and the isr is redundant and
misleading.  Clean this up and introduce a controller-wide event queue
to start reeling in "completion" proliferation in the driver.

The "stopping" state cleanups are in a similar vein, rely on the the isr
and other paths being precluded from occurring rather than implementing
state checking logic.

Reported-by: Christoph Hellwig <hch@infradead.org>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Edmund Nadolski <edmund.nadolski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: bypass scic_controller_get_handler_methods()
Dan Williams [Fri, 18 Feb 2011 17:25:05 +0000 (09:25 -0800)]
isci: bypass scic_controller_get_handler_methods()

The indirection is unecessary and broken in the current case that assigns the
handlers based on a not up-to-date pdev->msix_enabled value.

Route the handlers directly to the requisite core routines.

Todo: hook up error interrupt handling

Reported-by: Jeff Garzik <jeff@garzik.org>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Edmund Nadolski <edmund.nadolski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: remove SCIC_DEBUG_ENABLED, and fixup an odd macro
Dan Williams [Thu, 17 Feb 2011 23:01:46 +0000 (15:01 -0800)]
isci: remove SCIC_DEBUG_ENABLED, and fixup an odd macro

This will be replaced by state machine tracepoints and should have been a part
of the logger removal.

Ran across scic_sds_port_decrement_request_count() which is an ugly macro
which silently hides accounting errors.  Turn it into a WARN_ONCE to see if it
ever triggers.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: kill a callback cast
Dan Williams [Sat, 12 Feb 2011 19:50:15 +0000 (11:50 -0800)]
isci: kill a callback cast

Callbacks are already type unsafe, obfuscating things further by casting the
callback routine is less safe because now function argument number changes
will not be caught by the compiler.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: coding style changes for remote device
Henryk Dembkowski [Sat, 12 Feb 2011 19:50:13 +0000 (11:50 -0800)]
isci: coding style changes for remote device

Change names from upper to low letters

Signed-off-by: Henryk Dembkowski <henryk.dembkowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: cleanup core consolidation leftovers
Dan Williams [Sat, 12 Feb 2011 19:50:11 +0000 (11:50 -0800)]
isci: cleanup core consolidation leftovers

Remove duplicated license and header file includes that were leftover
from commit 4c1db2d0 "isci: consolidate core" (in the isci.git historical
branch).

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: c99 tables cleanup step1
Henryk Dembkowski [Sat, 12 Feb 2011 19:50:09 +0000 (11:50 -0800)]
isci: c99 tables cleanup step1

scic_sds_stp_remote_device_ready_substate_handler_table[]
scic_sds_smp_remote_device_ready_substate_handler_table[]

c99 the struct initializers:
1/ allows grep to consistently show method name associations.  The
   naming is mostly consistent (except when it isn't) so this guarantees
   coverage of present and future exception cases.
2/ let's the compiler guarantee that the state table array entry
   correlates with an actual state name and detect accidental reordering or
   deletion of states.
3/ allows default handler's to be identified easily

Signed-off-by: Henryk Dembkowski <henryk.dembkowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: coding style changes for remote device
Henryk Dembkowski [Sat, 12 Feb 2011 19:50:07 +0000 (11:50 -0800)]
isci: coding style changes for remote device

Change names from upper to low letters

Signed-off-by: Henryk Dembkowski <henryk.dembkowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: remote device and node cleanup step1
Henryk Dembkowski [Sat, 12 Feb 2011 19:50:05 +0000 (11:50 -0800)]
isci: remote device and node cleanup step1

c99 the struct initializers (scic_sds_remote_device_state_handler_table[]):
1/ allows grep to consistently show method name associations.  The
   naming is mostly consistent (except when it isn't) so this guarantees
   coverage of present and future exception cases.
2/ let's the compiler guarantee that the state table array entry
   correlates with an actual state name and detect accidental reordering or
   deletion of states.
3/ allows default handler's to be identified easily

Change names from upper to low letters

Cleanup empty lines

Signed-off-by: Henryk Dembkowski <henryk.dembkowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: removing unused loglevel module param
Dave Jiang [Sat, 12 Feb 2011 02:04:28 +0000 (18:04 -0800)]
isci: removing unused loglevel module param

We no longer use the loglevel parameter. Remove.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: kill sci_types.h
Edmund Nadolski [Tue, 8 Feb 2011 16:31:55 +0000 (09:31 -0700)]
isci: kill sci_types.h

Signed-off-by: Edmund Nadolski <edmund.nadolski@intel.com>
[rebased after killing SCI_IO_REQUEST_DATA_DIRECTION]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: kill SCI_IO_REQUEST_DATA_DIRECTION
Dan Williams [Wed, 9 Feb 2011 01:53:10 +0000 (17:53 -0800)]
isci: kill SCI_IO_REQUEST_DATA_DIRECTION

It's an unnecessary typedef that mirrors the kernel's enum
dma_data_direction.

Also cleanup some long variable names along the way.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: remove SCI_INVALID_HANDLE
Edmund Nadolski [Tue, 8 Feb 2011 16:28:42 +0000 (09:28 -0700)]
isci: remove SCI_INVALID_HANDLE

Replace SCI_INVALID_HANDLE with NULL

Signed-off-by: Edmund Nadolski <edmund.nadolski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: remove unused SC_LIBRARY_HANDLE_T typedef
Edmund Nadolski [Tue, 8 Feb 2011 15:09:10 +0000 (08:09 -0700)]
isci: remove unused SC_LIBRARY_HANDLE_T typedef

Signed-off-by: Edmund Nadolski <edmund.nadolski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoisci: Intel(R) C600 Series Chipset Storage Control Unit Driver
Dan Williams [Sun, 3 Jul 2011 05:56:22 +0000 (22:56 -0700)]
isci: Intel(R) C600 Series Chipset Storage Control Unit Driver

Support for the up to 2x4-port 6Gb/s SAS controllers embedded in the
chipset.

This is a snapshot of the first publicly available version of the driver,
commit 4c1db2d0 in the 'historical' branch.

   git://git.kernel.org/pub/scm/linux/kernel/git/djbw/isci.git historical

Signed-off-by: Maciej Trela <maciej.trela@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Edmund Nadolski <edmund.nadolski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
13 years agoLinux 3.0-rc2
Linus Torvalds [Mon, 6 Jun 2011 09:06:33 +0000 (18:06 +0900)]
Linux 3.0-rc2

13 years agomm: fix ENOSPC returned by handle_mm_fault()
Hugh Dickins [Mon, 6 Jun 2011 05:03:13 +0000 (22:03 -0700)]
mm: fix ENOSPC returned by handle_mm_fault()

Al Viro observes that in the hugetlb case, handle_mm_fault() may return
a value of the kind ENOSPC when its caller is expecting a value of the
kind VM_FAULT_SIGBUS: fix alloc_huge_page()'s failure returns.

Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Mon, 6 Jun 2011 08:51:28 +0000 (17:51 +0900)]
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: usb - turn off de-emphasis in s/pdif for cm6206
  ALSA: asihpi: Use angle brackets for system includes
  ALSA: fm801: add error handling if auto-detect fails
  ALSA: hda - Check pin support EAPD in ad198x_power_eapd_write
  ALSA: hda - Fix HP and Front pins of ad1988/ad1989 in ad198x_power_eapd()
  ALSA: 6fire: Don't leak firmware in error path
  ASoC: Fix wm_hubs input PGA ZC bits
  ASoC: Fix dapm_is_shared_kcontrol so everything isn't shared

13 years agoMerge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groec...
Linus Torvalds [Mon, 6 Jun 2011 08:48:02 +0000 (17:48 +0900)]
Merge branch 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/staging

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging:
  hwmon: (max6642): Better chip detection schema
  hwmon: (coretemp) Further relax temperature range checks
  hwmon: (coretemp) Fix TjMax detection for older CPUs
  hwmon: (coretemp) Relax target temperature range check
  hwmon: (max6642) Rename temp_fault sysfs attribute to temp2_fault

13 years agoMerge branch 'fix/asoc' into for-linus
Takashi Iwai [Mon, 6 Jun 2011 07:28:49 +0000 (09:28 +0200)]
Merge branch 'fix/asoc' into for-linus

13 years agoMerge branch 'for-linus' of git://android.git.kernel.org/kernel/tegra
Linus Torvalds [Sat, 4 Jun 2011 23:11:11 +0000 (08:11 +0900)]
Merge branch 'for-linus' of git://android.git./kernel/tegra

* 'for-linus' of git://android.git.kernel.org/kernel/tegra:
  ARM: Tegra: Harmony: Fix conflicting GPIO numbering

13 years agoARM: Tegra: Harmony: Fix conflicting GPIO numbering
Stephen Warren [Tue, 31 May 2011 21:14:07 +0000 (15:14 -0600)]
ARM: Tegra: Harmony: Fix conflicting GPIO numbering

Currently, both the WM8903 and TPS6586x chips attempt to register with
gpiolib using the same GPIO numbers. This causes the audio driver to
fail to initialize.

To solve this, add a define to board-harmony.h for the TPS6586x, and make
board-harmony-power.c use this define, instead of directly referencing
TEGRA_NR_GPIOS.

This fixes a regression introduced by commit
6f168f2fa60f87e85e0df25e87e2372f22f5eb7c.
ARM: tegra: harmony: initialize the TPS65862 PMIC

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Colin Cross <ccross@android.com>
13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs...
Linus Torvalds [Sat, 4 Jun 2011 21:17:23 +0000 (06:17 +0900)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/btrfs-unstable

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (25 commits)
  btrfs: fix uninitialized variable warning
  btrfs: add helper for fs_info->closing
  Btrfs: add mount -o inode_cache
  btrfs: scrub: add explicit plugging
  btrfs: use btrfs_ino to access inode number
  Btrfs: don't save the inode cache if we are deleting this root
  btrfs: false BUG_ON when degraded
  Btrfs: don't save the inode cache in non-FS roots
  Btrfs: make sure we don't overflow the free space cache crc page
  Btrfs: fix uninit variable in the delayed inode code
  btrfs: scrub: don't reuse bios and pages
  Btrfs: leave spinning on lookup and map the leaf
  Btrfs: check for duplicate entries in the free space cache
  Btrfs: don't try to allocate from a block group that doesn't have enough space
  Btrfs: don't always do readahead
  Btrfs: try not to sleep as much when doing slow caching
  Btrfs: kill BTRFS_I(inode)->block_group
  Btrfs: don't look at the extent buffer level 3 times in a row
  Btrfs: map the node block when looking for readahead targets
  Btrfs: set range_start to the right start in count_range_bits
  ...

13 years agohwmon: (max6642): Better chip detection schema
Per Dalén [Thu, 26 May 2011 13:08:53 +0000 (09:08 -0400)]
hwmon: (max6642): Better chip detection schema

Improve detection of MAX6642 by reading non existing registers (0x04, 0x06
and 0xff). Reading those registers returns the previously read value.

Signed-off-by: Per Dalen <per.dalen@appeartv.com>
[guenter.roeck@ericsson.com: added second set of register reads]
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
Linus Torvalds [Sat, 4 Jun 2011 14:19:51 +0000 (23:19 +0900)]
Merge git://git./linux/kernel/git/jejb/scsi-rc-fixes-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
  [SCSI] Fix oops caused by queue refcounting failure

13 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Sat, 4 Jun 2011 14:16:00 +0000 (23:16 +0900)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (40 commits)
  tg3: Fix tg3_skb_error_unmap()
  net: tracepoint of net_dev_xmit sees freed skb and causes panic
  drivers/net/can/flexcan.c: add missing clk_put
  net: dm9000: Get the chip in a known good state before enabling interrupts
  drivers/net/davinci_emac.c: add missing clk_put
  af-packet: Add flag to distinguish VID 0 from no-vlan.
  caif: Fix race when conditionally taking rtnl lock
  usbnet/cdc_ncm: add missing .reset_resume hook
  vlan: fix typo in vlan_dev_hard_start_xmit()
  net/ipv4: Check for mistakenly passed in non-IPv4 address
  iwl4965: correctly validate temperature value
  bluetooth l2cap: fix locking in l2cap_global_chan_by_psm
  ath9k: fix two more bugs in tx power
  cfg80211: don't drop p2p probe responses
  Revert "net: fix section mismatches"
  drivers/net/usb/catc.c: Fix potential deadlock in catc_ctrl_run()
  sctp: stop pending timers and purge queues when peer restart asoc
  drivers/net: ks8842 Fix crash on received packet when in PIO mode.
  ip_options_compile: properly handle unaligned pointer
  iwlagn: fix incorrect PCI subsystem id for 6150 devices
  ...

13 years agobtrfs: fix uninitialized variable warning
David Sterba [Fri, 3 Jun 2011 14:29:08 +0000 (16:29 +0200)]
btrfs: fix uninitialized variable warning

With Linus' tree, today's linux-next build (powercp ppc64_defconfig)
produced this warning:

fs/btrfs/delayed-inode.c: In function 'btrfs_delayed_update_inode':
fs/btrfs/delayed-inode.c:1598:6: warning: 'ret' may be used
uninitialized in this function

Introduced by commit 16cdcec736cd ("btrfs: implement delayed inode items
operation").

This fixes a bug in btrfs_update_inode(): if the returned value from
btrfs_delayed_update_inode is a nonzero garbage, inode stat data are not
updated and several call paths may hit a BUG_ON or fail with strange
code.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: David Sterba <dsterba@suse.cz>
13 years agobtrfs: add helper for fs_info->closing
David Sterba [Tue, 31 May 2011 16:07:27 +0000 (18:07 +0200)]
btrfs: add helper for fs_info->closing

wrap checking of filesystem 'closing' flag and fix a few missing memory
barriers.

Signed-off-by: David Sterba <dsterba@suse.cz>
13 years agoBtrfs: add mount -o inode_cache
Chris Mason [Fri, 3 Jun 2011 13:36:29 +0000 (09:36 -0400)]
Btrfs: add mount -o inode_cache

This makes the inode map cache default to off until we
fix the overflow problem when the free space crcs don't fit
inside a single page.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agobtrfs: scrub: add explicit plugging
Arne Jansen [Sat, 28 May 2011 20:58:38 +0000 (20:58 +0000)]
btrfs: scrub: add explicit plugging

With the removal of the implicit plugging scrub ends up doing more and
smaller I/O than necessary. This patch adds explicit plugging per chunk.

Signed-off-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agobtrfs: use btrfs_ino to access inode number
David Sterba [Tue, 31 May 2011 17:08:14 +0000 (17:08 +0000)]
btrfs: use btrfs_ino to access inode number

commit 4cb5300bc ("Btrfs: add mount -o auto_defrag") accesses inode
number directly while it should use the helper with the new inode
number allocator.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agoBtrfs: don't save the inode cache if we are deleting this root
Josef Bacik [Tue, 31 May 2011 19:33:33 +0000 (19:33 +0000)]
Btrfs: don't save the inode cache if we are deleting this root

With xfstest 254 I can panic the box every time with the inode number caching
stuff on.  This is because we clean the inodes out when we delete the subvolume,
but then we write out the inode cache which adds an inode to the subvolume inode
tree, and then when it gets evicted again the root gets added back on the dead
roots list and is deleted again, so we have a double free.  To stop this from
happening just return 0 if refs is 0 (and we're not the tree root since tree
root always has refs of 0).  With this fix 254 no longer panics.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Tested-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agobtrfs: false BUG_ON when degraded
Arne Jansen [Mon, 30 May 2011 08:36:16 +0000 (08:36 +0000)]
btrfs: false BUG_ON when degraded

In degraded mode the struct btrfs_device of missing devs don't have
device->name set. A kstrdup of NULL correctly returns NULL. Don't
BUG in this case.

Signed-off-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agoBtrfs: don't save the inode cache in non-FS roots
liubo [Wed, 1 Jun 2011 09:42:49 +0000 (09:42 +0000)]
Btrfs: don't save the inode cache in non-FS roots

This adds extra checks to make sure the inode map we are caching really
belongs to a FS root instead of a special relocation tree.  It
prevents crashes during balancing operations.

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agoBtrfs: make sure we don't overflow the free space cache crc page
Chris Mason [Fri, 3 Jun 2011 05:26:53 +0000 (01:26 -0400)]
Btrfs: make sure we don't overflow the free space cache crc page

The free space cache uses only one page for crcs right now,
which means we can't have a cache file bigger than the
crcs we can fit in the first page.  This adds a check to
enforce that restriction.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agoBtrfs: fix uninit variable in the delayed inode code
Chris Mason [Fri, 3 Jun 2011 05:13:45 +0000 (01:13 -0400)]
Btrfs: fix uninit variable in the delayed inode code

The nitems counter needs to start at zero

Signed-off-by: Chris Mason <chris.mason@oracle.com>
13 years agobtrfs: scrub: don't reuse bios and pages
Arne Jansen [Sat, 28 May 2011 19:57:55 +0000 (21:57 +0200)]
btrfs: scrub: don't reuse bios and pages

The current scrub implementation reuses bios and pages as often as possible,
allocating them only on start and releasing them when finished. This leads
to more problems with the block layer than it's worth. The elevator gets
confused when there are more pages added to the bio than bi_size suggests.
This patch completely rips out the reuse of bios and pages and allocates
them freshly for each submit.

Signed-off-by: Arne Jansen <sensille@gmx.net>
Signed-off-by: Chris Maosn <chris.mason@oracle.com>
13 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 3 Jun 2011 23:11:26 +0000 (08:11 +0900)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block

* 'for-linus' of git://git.kernel.dk/linux-block:
  block: Use hlist_entry() for io_context.cic_list.first
  cfq-iosched: Remove bogus check in queue_fail path
  xen/blkback: potential null dereference in error handling
  xen/blkback: don't call vbd_size() if bd_disk is NULL
  block: blkdev_get() should access ->bd_disk only after success
  CFQ: Fix typo and remove unnecessary semicolon
  block: remove unwanted semicolons
  Revert "block: Remove extra discard_alignment from hd_struct."
  nbd: adjust 'max_part' according to part_shift
  nbd: limit module parameters to a sane value
  nbd: pass MSG_* flags to kernel_recvmsg()
  block: improve the bio_add_page() and bio_add_pc_page() descriptions

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier...
Linus Torvalds [Fri, 3 Jun 2011 23:04:10 +0000 (08:04 +0900)]
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: strncpy: fix handling of zero lengths

13 years agoMerge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux...
Linus Torvalds [Fri, 3 Jun 2011 23:03:16 +0000 (08:03 +0900)]
Merge branch 'stable' of git://git./linux/kernel/git/cmetcalf/linux-tile

* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  asm-generic/unistd.h: support sendmmsg syscall
  tile: enable CONFIG_BUGVERBOSE

13 years agoMerge branch 'linux-next' of git://git.infradead.org/ubifs-2.6
Linus Torvalds [Fri, 3 Jun 2011 22:59:32 +0000 (07:59 +0900)]
Merge branch 'linux-next' of git://git.infradead.org/ubifs-2.6

* 'linux-next' of git://git.infradead.org/ubifs-2.6:
  UBIFS: fix-up free space earlier
  UBIFS: intialize LPT earlier
  UBIFS: assert no fixup when writing a node
  UBIFS: fix clean znode counter corruption in error cases
  UBIFS: fix memory leak on error path
  UBIFS: fix shrinker object count reports
  UBIFS: fix recovery broken by the previous recovery fix
  UBIFS: amend ubifs_recover_leb interface
  UBIFS: introduce a "grouped" journal head flag
  UBIFS: supress false error messages

13 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
Linus Torvalds [Fri, 3 Jun 2011 22:58:48 +0000 (07:58 +0900)]
Merge branch 'for-linus' of git://git./linux/kernel/git/rostedt/linux-2.6-ktest

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-ktest:
  ktest: Ignore unset values of the minconfig in config_bisect
  ktest: Fix result of rebooting the kernel
  ktest: Fix off-by-one in config bisect result

13 years agoMerge branch 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 3 Jun 2011 22:53:23 +0000 (07:53 +0900)]
Merge branch 'rmobile-fixes-for-linus' of git://git./linux/kernel/git/lethal/sh-2.6

* 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  ARM: mach-shmobile: add DMAC clock definitions on SH7372
  ARM: arch-shmobile: support SDHI card detection on mackerel, using a GPIO
  sh_mobile_meram: MERAM platform data for LCDC

13 years agoMerge branch 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 3 Jun 2011 22:04:25 +0000 (07:04 +0900)]
Merge branch 'sh-fixes-for-linus' of git://git./linux/kernel/git/lethal/sh-2.6

* 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  dmaengine: shdma: fix a regression: initialise DMA channels for memcpy
  dmaengine: shdma: Fix up fallout from runtime PM changes.
  Revert "clocksource: sh_cmt: Runtime PM support"
  Revert "clocksource: sh_tmu: Runtime PM support"
  sh: Fix up asm-generic/ptrace.h fallout.
  sh64: Move from P1SEG to CAC_ADDR for consistent sync.
  sh64: asm/pgtable.h needs asm/mmu.h
  sh: asm/tlb.h needs linux/swap.h
  sh: mark DMA slave ID 0 as invalid
  sh: Update shmin to reflect PIO dependency.
  sh: arch/sh/kernel/process_32.c needs linux/prefetch.h.
  sh: add MMCIF runtime PM support on ecovec
  sh: switch ap325rxa to dynamically manage the platform camera

13 years agoRevert "ASoC: Update cx20442 for TTY API change"
Linus Torvalds [Fri, 3 Jun 2011 22:00:50 +0000 (07:00 +0900)]
Revert "ASoC: Update cx20442 for TTY API change"

This reverts commit ed0bd2333cffc3d856db9beb829543c1dfc00982.

Since we reverted the TTY API change, we should revert the ASoC update
to it too.

Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Liam Girdwood <lrg@ti.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoRevert "tty: make receive_buf() return the amout of bytes received"
Linus Torvalds [Fri, 3 Jun 2011 21:33:24 +0000 (06:33 +0900)]
Revert "tty: make receive_buf() return the amout of bytes received"

This reverts commit b1c43f82c5aa265442f82dba31ce985ebb7aa71c.

It was broken in so many ways, and results in random odd pty issues.

It re-introduced the buggy schedule_work() in flush_to_ldisc() that can
cause endless work-loops (see commit a5660b41af6a: "tty: fix endless
work loop when the buffer fills up").

It also used an "unsigned int" return value fo the ->receive_buf()
function, but then made multiple functions return a negative error code,
and didn't actually check for the error in the caller.

And it didn't actually work at all.  BenH bisected down odd tty behavior
to it:
  "It looks like the patch is causing some major malfunctions of the X
   server for me, possibly related to PTYs.  For example, cat'ing a
   large file in a gnome terminal hangs the kernel for -minutes- in a
   loop of what looks like flush_to_ldisc/workqueue code, (some ftrace
   data in the quoted bits further down).

   ...

   Some more data: It -looks- like what happens is that the
   flush_to_ldisc work queue entry constantly re-queues itself (because
   the PTY is full ?) and the workqueue thread will basically loop
   forver calling it without ever scheduling, thus starving the consumer
   process that could have emptied the PTY."

which is pretty much exactly the problem we fixed in a5660b41af6a.

Milton Miller pointed out the 'unsigned int' issue.

Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reported-by: Milton Miller <miltonm@bga.com>
Cc: Stefan Bigler <stefan.bigler@keymile.com>
Cc: Toby Gray <toby.gray@realvnc.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
John W. Linville [Fri, 3 Jun 2011 18:31:50 +0000 (14:31 -0400)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-2.6 into for-davem

13 years agoALSA: usb - turn off de-emphasis in s/pdif for cm6206
Eric Lammerts [Fri, 27 May 2011 22:16:52 +0000 (18:16 -0400)]
ALSA: usb - turn off de-emphasis in s/pdif for cm6206

CM6206: Turn off de-emphasis channel status bit in S/PDIF output.

Signed-off-by: Eric Lammerts <eric@lammerts.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
13 years agoUBIFS: fix-up free space earlier
Ben Gardiner [Mon, 30 May 2011 18:56:16 +0000 (14:56 -0400)]
UBIFS: fix-up free space earlier

The free space fixup is currently initiated during mount after the call to
ubifs_write_master() which results in a write to PEBs; this has been observed
with the patch 'assert no fixup when writing a node' applied:

Move the free space fixup on mount to before the calls to
ubifs_recover_inl_heads() and ubifs_write_master(). This results in no
assertions with the previously mentioned patch applied.

Artem: tweaked the patch a bit

Signed-off-by: Ben Gardiner <bengardiner@nanometrics>
Reviewed-by: Matthew L. Creech <mlcreech@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
13 years agoUBIFS: intialize LPT earlier
Ben Gardiner [Mon, 30 May 2011 18:56:15 +0000 (14:56 -0400)]
UBIFS: intialize LPT earlier

The current 'mount_ubifs()' implementation does not initialize the LPT until the
the master node is marked dirty. Move the LPT initialization to before marking
the master node dirty. This is a preparation for the next patch which will move
the free-space-fixup check to before marking the master node dirty, because we
have to fix-up the free space before doing any writes.

Artem: massaged the patch and commit message.

Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca>
Reviewed-by: Matthew L. Creech <mlcreech@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
13 years agoUBIFS: assert no fixup when writing a node
Ben Gardiner [Mon, 30 May 2011 18:56:14 +0000 (14:56 -0400)]
UBIFS: assert no fixup when writing a node

The current free space fixup can result in some writing to the UBI volume
when the space_fixup flag is set.

To catch instances where UBIFS is writing to the NAND while the space_fixup
flag is set, add an assert to ubifs_write_node().

Artem: tweaked the patch, added similar assertion to the write buffer
       write path.

Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca>
Reviewed-by: Matthew L. Creech <mlcreech@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
13 years agoUBIFS: fix clean znode counter corruption in error cases
Artem Bityutskiy [Tue, 31 May 2011 11:26:07 +0000 (14:26 +0300)]
UBIFS: fix clean znode counter corruption in error cases

UBIFS maintains per-filesystem and global clean znode counters
('c->clean_zn_cnt' and 'ubifs_clean_zn_cnt'). It is important to maintain
correct values there since the shrinker relies on 'ubifs_clean_zn_cnt'.

However, in case of failures during commit the counters were corrupted. E.g.,
if a failure happens in the middle of 'write_index()', then some nodes in the
commit list ('c->cnext') are marked as clean, and some are marked as dirty. And
the 'ubifs_destroy_tnc_subtree()' frees does not retrun correct count, and we
end up with non-zero 'c->clean_zn_cnt' when unmounting. This means that if we
have 2 file-sytem and one of them fails, and we unmount it,
'ubifs_clean_zn_cnt' stays incorrect and confuses the shrinker.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
13 years agoUBIFS: fix memory leak on error path
Artem Bityutskiy [Tue, 31 May 2011 05:40:40 +0000 (08:40 +0300)]
UBIFS: fix memory leak on error path

UBIFS leaks memory on error path in 'ubifs_jnl_update()' in case of write
failure because it forgets to free the 'struct ubifs_dent_node *dent' object.
Although the object is small, the alignment can make it large - e.g., 2KiB
if the min. I/O unit is 2KiB.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Cc: stable@kernel.org
13 years agoUBIFS: fix shrinker object count reports
Artem Bityutskiy [Tue, 31 May 2011 04:03:21 +0000 (07:03 +0300)]
UBIFS: fix shrinker object count reports

Sometimes VM asks the shrinker to return amount of objects it can shrink,
and we return the ubifs_clean_zn_cnt in that case. However, it is possible
that this counter is negative for a short period of time, due to the way
UBIFS TNC code updates it. And I can observe the following warnings sometimes:

shrink_slab: ubifs_shrinker+0x0/0x2b7 [ubifs] negative objects to delete nr=-8541616642706119788

This patch makes sure UBIFS never returns negative count of objects.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Cc: stable@kernel.org
13 years agoBlackfin: strncpy: fix handling of zero lengths
Steven Miao [Wed, 1 Jun 2011 07:52:41 +0000 (15:52 +0800)]
Blackfin: strncpy: fix handling of zero lengths

The jump to 4f will cause the NUL padding loop to run at least one time,
so if string length is zero just jump to the end.  Otherwise we wrongly
write one NUL byte when size==0.

Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
13 years agoALSA: asihpi: Use angle brackets for system includes
Joe Perches [Fri, 3 Jun 2011 09:28:49 +0000 (02:28 -0700)]
ALSA: asihpi: Use angle brackets for system includes

Use the normal include style.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
13 years agoALSA: fm801: add error handling if auto-detect fails
Dan Carpenter [Thu, 26 May 2011 08:47:35 +0000 (11:47 +0300)]
ALSA: fm801: add error handling if auto-detect fails

In the original code if auto detect failed and tea575x_tuner == 4
then we copy bogus information to chip->tea.card.  I've changed the
autodetect code to cleanup and return -ENODEV on error instead.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
13 years agoALSA: hda - Check pin support EAPD in ad198x_power_eapd_write
Raymond Yau [Wed, 1 Jun 2011 07:09:48 +0000 (15:09 +0800)]
ALSA: hda - Check pin support EAPD in ad198x_power_eapd_write

Check whether the pin supports EAPD in ad198x_power_eapd_write.

Signed-off-by: Raymond Yau <superquad.vortex2@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
13 years agoALSA: hda - Fix HP and Front pins of ad1988/ad1989 in ad198x_power_eapd()
Takashi Iwai [Fri, 3 Jun 2011 08:05:02 +0000 (10:05 +0200)]
ALSA: hda - Fix HP and Front pins of ad1988/ad1989 in ad198x_power_eapd()

In ad198x_power_eapd(), wrong pin NIDs are used for controlling EAPD for
HP and Front outputs of AD1988/AD1989.  These are actually same with the
ones for AD1984 & co, port-A is 0x11 and port-D 0x12.

Reported-by: Raymond Yau <superquad.vortex2@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
13 years agotg3: Fix tg3_skb_error_unmap()
Matt Carlson [Thu, 2 Jun 2011 13:01:39 +0000 (13:01 +0000)]
tg3: Fix tg3_skb_error_unmap()

This function attempts to free one fragment beyond the number of
fragments that were actually mapped.  This patch brings back the limit
to the correct spot.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonet: tracepoint of net_dev_xmit sees freed skb and causes panic
Koki Sanagi [Mon, 30 May 2011 21:48:34 +0000 (21:48 +0000)]
net: tracepoint of net_dev_xmit sees freed skb and causes panic

Because there is a possibility that skb is kfree_skb()ed and zero cleared
after ndo_start_xmit, we should not see the contents of skb like skb->len and
skb->dev->name after ndo_start_xmit. But trace_net_dev_xmit does that
and causes panic by NULL pointer dereference.
This patch fixes trace_net_dev_xmit not to see the contents of skb directly.

If you want to reproduce this panic,

1. Get tracepoint of net_dev_xmit on
2. Create 2 guests on KVM
2. Make 2 guests use virtio_net
4. Execute netperf from one to another for a long time as a network burden
5. host will panic(It takes about 30 minutes)

Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoasm-generic/unistd.h: support sendmmsg syscall
Chris Metcalf [Thu, 2 Jun 2011 18:21:45 +0000 (14:21 -0400)]
asm-generic/unistd.h: support sendmmsg syscall

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
13 years agoALSA: 6fire: Don't leak firmware in error path
Jesper Juhl [Mon, 30 May 2011 10:49:01 +0000 (12:49 +0200)]
ALSA: 6fire: Don't leak firmware in error path

One of the error paths in
sound/usb/6fire/firmware.c::usb6fire_fw_ezusb_upload() neglects to free
the memory allocated for the firmware before returning, thus leaking the
memory.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
13 years agoktest: Ignore unset values of the minconfig in config_bisect
Steven Rostedt [Thu, 2 Jun 2011 03:27:19 +0000 (23:27 -0400)]
ktest: Ignore unset values of the minconfig in config_bisect

By ignoring the unset values of the minconfig in deciding
what to test in the config_bisect can cause the problem
config from being tested too.

Just do not test the configs that are set in the minconfig.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
13 years agoktest: Fix result of rebooting the kernel
Steven Rostedt [Thu, 2 Jun 2011 03:25:13 +0000 (23:25 -0400)]
ktest: Fix result of rebooting the kernel

The command that is called that reboots the kernel may fail
but the return code is not passed back to the ktest.pl script.
This is because a ';' is used between the two commands and
if the second command fails, only the first command's return
code is returned. Using a '&&' between the two commands fixes
this.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
13 years agoktest: Fix off-by-one in config bisect result
Steven Rostedt [Thu, 2 Jun 2011 03:22:30 +0000 (23:22 -0400)]
ktest: Fix off-by-one in config bisect result

Because in perl the array size returned by $#arr, is the last
index and not the actually size of the array, we end the config
bisect early, thinking there is only one config left when there
are in fact two. Thus the result has a 50% chance of picking
the correct config that caused the problem.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
13 years agoMerge branch 'for-jens/xen-blkback.fixes' of git://git.kernel.org/pub/scm/linux/kerne...
Jens Axboe [Thu, 2 Jun 2011 11:14:15 +0000 (13:14 +0200)]
Merge branch 'for-jens/xen-blkback.fixes' of git://git./linux/kernel/git/konrad/xen into for-linus

13 years agoblock: Use hlist_entry() for io_context.cic_list.first
Paul Bolle [Thu, 2 Jun 2011 11:05:02 +0000 (13:05 +0200)]
block: Use hlist_entry() for io_context.cic_list.first

list_entry() and hlist_entry() are both simply aliases for
container_of(), but since io_context.cic_list.first is an hlist_node one
should at least use the correct alias.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
13 years agocfq-iosched: Remove bogus check in queue_fail path
Paul Bolle [Thu, 2 Jun 2011 11:05:02 +0000 (13:05 +0200)]
cfq-iosched: Remove bogus check in queue_fail path

queue_fail can only be reached if cic is NULL, so its check for cic must
be bogus.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
13 years ago[SCSI] Fix oops caused by queue refcounting failure
James Bottomley [Wed, 25 May 2011 20:52:14 +0000 (15:52 -0500)]
[SCSI] Fix oops caused by queue refcounting failure

In certain circumstances, we can get an oops from a torn down device.
Most notably this is from CD roms trying to call scsi_ioctl.  The root
cause of the problem is the fact that after scsi_remove_device() has
been called, the queue is fully torn down.  This is actually wrong
since the queue can be used until the sdev release function is called.
Therefore, we add an extra reference to the queue which is released in
sdev->release, so the queue always exists.

Reported-by: Parag Warudkar <parag.lkml@gmail.com>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <jbottomley@parallels.com>
13 years agodrivers/net/can/flexcan.c: add missing clk_put
Julia Lawall [Wed, 1 Jun 2011 19:48:50 +0000 (19:48 +0000)]
drivers/net/can/flexcan.c: add missing clk_put

The failed_get label is used after the call to clk_get has succeeded, so it
should be moved up above the call to clk_put.

The failed_req labels doesn't do anything different than failed_get, so
delete it.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r exists@
expression e1,e2;
statement S;
@@

e1 = clk_get@p1(...);
... when != e1 = e2
    when != clk_put(e1)
    when any
if (...) { ... when != clk_put(e1)
               when != if (...) { ... clk_put(e1) ... }
* return@p3 ...;
 } else S
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoARM: mach-shmobile: add DMAC clock definitions on SH7372
Guennadi Liakhovetski [Wed, 1 Jun 2011 07:32:07 +0000 (07:32 +0000)]
ARM: mach-shmobile: add DMAC clock definitions on SH7372

These definitions are needed to let the runtime PM subsystem turn off
DMAC clocks, when it is suspended by the driver.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
13 years agodmaengine: shdma: fix a regression: initialise DMA channels for memcpy
Guennadi Liakhovetski [Tue, 31 May 2011 09:25:16 +0000 (09:25 +0000)]
dmaengine: shdma: fix a regression: initialise DMA channels for memcpy

A recent patch has introduced a regression, where repeating a memcpy
DMA test with shdma module unloading between them skips the DMA channel
configuration. Fix this regression by always configuring the channel
during its allocation.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
13 years agonet: dm9000: Get the chip in a known good state before enabling interrupts
Mark Brown [Wed, 1 Jun 2011 10:18:09 +0000 (10:18 +0000)]
net: dm9000: Get the chip in a known good state before enabling interrupts

Currently the DM9000 driver requests the primary interrupt before it
resets the chip and puts it into a known good state. This means that if
the chip is asserting interrupt for some reason we can end up with a
screaming IRQ that the interrupt handler is unable to deal with. Avoid
this by only requesting the interrupt after we've reset the chip so we
know what state it's in.

This started manifesting itself on one of my boards in the past month or
so, I suspect as a result of some core infrastructure changes removing
some form of mitigation against bad behaviour here, even when things boot
it seems that the new code brings the interface up more quickly.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agodrivers/net/davinci_emac.c: add missing clk_put
Julia Lawall [Wed, 1 Jun 2011 07:10:10 +0000 (07:10 +0000)]
drivers/net/davinci_emac.c: add missing clk_put

Go to existing error handling code at the end of the function that calls
clk_put.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@r exists@
expression e1,e2;
statement S;
@@

e1 = clk_get@p1(...);
... when != e1 = e2
    when != clk_put(e1)
    when any
if (...) { ... when != clk_put(e1)
               when != if (...) { ... clk_put(e1) ... }
* return@p3 ...;
 } else S
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agoaf-packet: Add flag to distinguish VID 0 from no-vlan.
Ben Greear [Wed, 1 Jun 2011 06:49:10 +0000 (06:49 +0000)]
af-packet: Add flag to distinguish VID 0 from no-vlan.

Currently, user-space cannot determine if a 0 tcp_vlan_tci
means there is no VLAN tag or the VLAN ID was zero.

Add flag to make this explicit.  User-space can check for
TP_STATUS_VLAN_VALID || tp_vlan_tci > 0, which will be backwards
compatible. Older could would have just checked for tp_vlan_tci,
so it will work no worse than before.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agocaif: Fix race when conditionally taking rtnl lock
sjur.brandeland@stericsson.com [Wed, 1 Jun 2011 00:55:37 +0000 (00:55 +0000)]
caif: Fix race when conditionally taking rtnl lock

Take the RTNL lock unconditionally when calling dev_close.
Taking the lock conditionally may cause race conditions.

Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agousbnet/cdc_ncm: add missing .reset_resume hook
Stefan Metzmacher [Wed, 1 Jun 2011 02:01:41 +0000 (02:01 +0000)]
usbnet/cdc_ncm: add missing .reset_resume hook

This avoids messages like this after suspend:

   cdc_ncm 2-1.4:1.6: no reset_resume for driver cdc_ncm?
   cdc_ncm 2-1.4:1.7: no reset_resume for driver cdc_ncm?
   cdc_ncm 2-1.4:1.6: usb0: unregister 'cdc_ncm' usb-0000:00:1d.0-1.4, CDC NCM

This is important for the Ericsson F5521gw GSM/UMTS modem.
Otherwise modemmanager looses the fact that the cdc_ncm and cdc_acm devices
belong together.

The cdc_ether module does the same.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agovlan: fix typo in vlan_dev_hard_start_xmit()
Wei Yongjun [Tue, 31 May 2011 22:53:19 +0000 (22:53 +0000)]
vlan: fix typo in vlan_dev_hard_start_xmit()

commit 4af429d29b341bb1735f04c2fb960178ed5d52e7 (vlan: lockless
transmit path) have a typo in vlan_dev_hard_start_xmit(), using
u64_stats_update_begin() to end the stat update, it should be
u64_stats_update_end().

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agonet/ipv4: Check for mistakenly passed in non-IPv4 address
Marcus Meissner [Thu, 2 Jun 2011 04:05:22 +0000 (21:05 -0700)]
net/ipv4: Check for mistakenly passed in non-IPv4 address

Check against mistakenly passing in IPv6 addresses (which would result
in an INADDR_ANY bind) or similar incompatible sockaddrs.

Signed-off-by: Marcus Meissner <meissner@suse.de>
Cc: Reinhard Max <max@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
13 years agohwmon: (coretemp) Further relax temperature range checks
Guenter Roeck [Wed, 1 Jun 2011 18:03:41 +0000 (11:03 -0700)]
hwmon: (coretemp) Further relax temperature range checks

Further relax temperature range checks after reading the IA32_TEMPERATURE_TARGET
register. If the register returns a value other than 0 in bits 16..32, assume
that the returned value is correct.

This change applies to both packet and core temperature limits.

Cc: Carsten Emde <C.Emde@osadl.org>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Fenghua Yu <fenghua.yu@intel.com>
13 years agohwmon: (coretemp) Fix TjMax detection for older CPUs
Guenter Roeck [Tue, 31 May 2011 13:54:21 +0000 (06:54 -0700)]
hwmon: (coretemp) Fix TjMax detection for older CPUs

Commit a321cedb12904114e2ba5041a3673ca24deb09c9 excludes CPU models 0xe, 0xf,
0x16, and 0x1a from TjMax temperature adjustment, even though several of those
CPUs are known to have TiMax other than 100 degrees C, and even though the code
in adjust_tjmax() explicitly handles those CPUs and points to a Web document
listing several of the affected CPU IDs.

Reinstate original TjMax adjustment if TjMax can not be determined using the
IA32_TEMPERATURE_TARGET register.

https://bugzilla.kernel.org/show_bug.cgi?id=32582

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: Huaxu Wan <huaxu.wan@linux.intel.com>
Cc: Carsten Emde <C.Emde@osadl.org>
Cc: Valdis Kletnieks <valdis.kletnieks@vt.edu>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: Yong Wang <yong.y.wang@linux.intel.com>
Cc: Rudolf Marek <r.marek@assembler.cz>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Tested-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Fenghua Yu <fenghua.yu@intel.com>
Cc: <stable@kernel.org> # .35.x .36.x .37.x .38.x .39.x
13 years agoRevert "mm: fail GFP_DMA allocations when ZONE_DMA is not configured"
Linus Torvalds [Wed, 1 Jun 2011 21:11:24 +0000 (06:11 +0900)]
Revert "mm: fail GFP_DMA allocations when ZONE_DMA is not configured"

This reverts commit a197b59ae6e8bee56fcef37ea2482dc08414e2ac.

As rmk says:
 "Commit a197b59ae6e8 (mm: fail GFP_DMA allocations when ZONE_DMA is not
  configured) is causing regressions on ARM with various drivers which
  use GFP_DMA.

  The behaviour up until now has been to silently ignore that flag when
  CONFIG_ZONE_DMA is not enabled, and to allocate from the normal zone.
  However, as a result of the above commit, such allocations now fail
  which causes drivers to fail.  These are regressions compared to the
  previous kernel version."

so just revert it.

Requested-by: Russell King <linux@arm.linux.org.uk>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
13 years agoMerge git://git.infradead.org/iommu-2.6
Linus Torvalds [Wed, 1 Jun 2011 20:48:50 +0000 (05:48 +0900)]
Merge git://git.infradead.org/iommu-2.6

* git://git.infradead.org/iommu-2.6:
  intel-iommu: Fix off-by-one in RMRR setup
  intel-iommu: Add domain check in domain_remove_one_dev_info
  intel-iommu: Remove Host Bridge devices from identity mapping
  intel-iommu: Use coherent DMA mask when requested
  intel-iommu: Dont cache iova above 32bit
  intel-iommu: Speed up processing of the identity_mapping function
  intel-iommu: Check for identity mapping candidate using system dma mask
  intel-iommu: Only unlink device domains from iommu
  intel-iommu: Enable super page (2MiB, 1GiB, etc.) support
  intel-iommu: Flush unmaps at domain_exit
  intel-iommu: Remove obsolete comment from detect_intel_iommu
  intel-iommu: fix VT-d PMR disable for TXT on S3 resume

13 years agoblock: fix mismerge of the DISK_EVENT_MEDIA_CHANGE removal
Linus Torvalds [Wed, 1 Jun 2011 20:29:19 +0000 (05:29 +0900)]
block: fix mismerge of the DISK_EVENT_MEDIA_CHANGE removal

Jens' back-merge commit 698567f3fa79 ("Merge commit 'v2.6.39' into
for-2.6.40/core") was incorrectly done, and re-introduced the
DISK_EVENT_MEDIA_CHANGE lines that had been removed earlier in commits

 - 9fd097b14918 ("block: unexport DISK_EVENT_MEDIA_CHANGE for
   legacy/fringe drivers")

 - 7eec77a1816a ("ide: unexport DISK_EVENT_MEDIA_CHANGE for ide-gd
   and ide-cd")

because of conflicts with the "g->flags" updates near-by by commit
d4dc210f69bc ("block: don't block events on excl write for non-optical
devices")

As a result, we re-introduced the hanging behavior due to infinite disk
media change reports.

Tssk, tssk, people! Don't do back-merges at all, and *definitely* don't
do them to hide merge conflicts from me - especially as I'm likely
better at merging them than you are, since I do so many merges.

Reported-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Jens Axboe <jaxboe@fusionio.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>