firefly-linux-kernel-4.4.55.git
11 years agoezusb: add dependency to USB
Rene Buergel [Thu, 22 Nov 2012 18:10:50 +0000 (19:10 +0100)]
ezusb: add dependency to USB

This fixes an error during modpost, when ezusb is built into the kernel
while USB is built as module.

Signed-off-by: René Bürgel <rene.buergel@sohard.de>
Cc: stable <stable@vger.kernel.org>
--
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb: ftdi_sio: fixup BeagleBone A5+ quirk
Peter Korsgaard [Thu, 22 Nov 2012 15:30:46 +0000 (16:30 +0100)]
usb: ftdi_sio: fixup BeagleBone A5+ quirk

BeagleBone A5+ devices ended up getting shipped with the
'BeagleBone/XDS100V2' product string, and not XDS100 like it
was agreed, so adjust the quirk to match.

For details, see the thread on the beagle list:

https://groups.google.com/forum/#!msg/beagleboard/zrFPew9_Wvo/ibWr1-eE8JwJ

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: cp210x: add Virtenio Preon32 device id
Markus Becker [Thu, 22 Nov 2012 08:41:23 +0000 (09:41 +0100)]
USB: cp210x: add Virtenio Preon32 device id

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Markus Becker <mab@comnets.uni-bremen.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb: storage: remove redundant memset() in usb_probe_stor1()
Yan Hong [Fri, 23 Nov 2012 14:44:47 +0000 (22:44 +0800)]
usb: storage: remove redundant memset() in usb_probe_stor1()

scsi_host_alloc() will zero our private data, no need to memset it.

Signed-off-by: Yan Hong <clouds.yan@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: option: blacklist network interface on Huawei E173
Bjørn Mork [Sun, 25 Nov 2012 16:05:10 +0000 (17:05 +0100)]
USB: option: blacklist network interface on Huawei E173

The Huawei E173 will normally appear as 12d1:1436 in Linux.  But
the modem has another mode with different device ID and a slightly
different set of descriptors. This is the mode used by Windows like
this:

  3Modem:      USB\VID_12D1&PID_140C&MI_00\6&3A1D2012&0&0000
  Networkcard: USB\VID_12D1&PID_140C&MI_01\6&3A1D2012&0&0001
  Appli.Inter: USB\VID_12D1&PID_140C&MI_02\6&3A1D2012&0&0002
  PC UI Inter: USB\VID_12D1&PID_140C&MI_03\6&3A1D2012&0&0003

All interfaces have the same ff/ff/ff class codes in this mode.
Blacklisting the network interface to allow it to be picked up by
the network driver.

Cc: stable <stable@vger.kernel.org>
Reported-by: Thomas Schäfer <tschaefer@t-online.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: OHCI: workaround for hardware bug: retired TDs not added to the Done Queue
Alan Stern [Mon, 26 Nov 2012 17:36:21 +0000 (12:36 -0500)]
USB: OHCI: workaround for hardware bug: retired TDs not added to the Done Queue

This patch (as1636) is a partial workaround for a hardware bug
affecting OHCI controllers by NVIDIA at least, maybe others too.  When
the controller retires a Transfer Descriptor, it is supposed to add
the TD onto the Done Queue.  But sometimes this doesn't happen, with
the result that ohci-hcd never realizes the corresponding transfer has
finished.  Symptoms can vary; a typical result is that USB audio stops
working after a while.

The patch works around the problem by recognizing that TDs are always
processed in order.  Therefore, if a later TD is found on the Done
Queue than all the earlier TDs for the same endpoint must be finished
as well.

Unfortunately this won't solve the problem in cases where the missing
TD is the last one in the endpoint's queue.  A complete fix would
require a signficant amount of change to the driver.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Oliver Neukum <oneukum@suse.de>
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: add new zte 3g-dongle's pid to option.c
li.rui27@zte.com.cn [Tue, 20 Nov 2012 06:31:47 +0000 (14:31 +0800)]
USB: add new zte 3g-dongle's pid to option.c

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Rui li <li.rui27@zte.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: opticon: switch to generic read implementation
Johan Hovold [Sun, 18 Nov 2012 12:23:36 +0000 (13:23 +0100)]
USB: opticon: switch to generic read implementation

Switch to the more efficient generic read implementation.

Note that the generic implementation is not required to hold the tty
port mutex during resume due to the read-urb free mask and write start
flag.

Note also that the generic resume implementation will call generic
write start if there is a bulk-out end-point, but that nothing will be
submitted as the write fifo is not used and is empty.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: opticon: refactor reab-urb processing
Johan Hovold [Sun, 18 Nov 2012 12:23:35 +0000 (13:23 +0100)]
USB: opticon: refactor reab-urb processing

Refactor and clean up read-urb processing.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: opticon: use usb-serial bulk-in urb
Johan Hovold [Sun, 18 Nov 2012 12:23:34 +0000 (13:23 +0100)]
USB: opticon: use usb-serial bulk-in urb

Use the bulk-in urb provided by usb-serial core rather than allocating a
private one.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: opticon: increase bulk-in size
Johan Hovold [Sun, 18 Nov 2012 12:23:33 +0000 (13:23 +0100)]
USB: opticon: increase bulk-in size

Use 256 byte bulk-in buffers rather than double end-point sized ones.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: opticon: use port as urb context
Johan Hovold [Sun, 18 Nov 2012 12:23:32 +0000 (13:23 +0100)]
USB: opticon: use port as urb context

Use port rather than private data as urb context, as the latter may be
accessed as port data, and remove the port field from the private data.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: opticon: pass port to get_serial_info
Johan Hovold [Sun, 18 Nov 2012 12:23:31 +0000 (13:23 +0100)]
USB: opticon: pass port to get_serial_info

Pass port rather then private data to get_serial_info, which only used
the private data to access the port.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: opticon: make private data port specific
Johan Hovold [Sun, 18 Nov 2012 12:23:30 +0000 (13:23 +0100)]
USB: opticon: make private data port specific

Make private data port specific and move allocation and deallocation to
port_probe and port_remove.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: opticon: remove disconnect
Johan Hovold [Sun, 18 Nov 2012 12:23:29 +0000 (13:23 +0100)]
USB: opticon: remove disconnect

Remove disconnect and its redundant read-urb kill which is already taken
care of in close.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: opticon: move read-urb deallocation to release
Johan Hovold [Sun, 18 Nov 2012 12:23:28 +0000 (13:23 +0100)]
USB: opticon: move read-urb deallocation to release

Move read-urb deallocation from disconnect to release.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: opticon: simplify bulk-in discovery in attach
Johan Hovold [Sun, 18 Nov 2012 12:23:27 +0000 (13:23 +0100)]
USB: opticon: simplify bulk-in discovery in attach

Remove custom end-point iteration which has already been taken care of
by usb-serial core.

The first bulk-in endpoint found will be associated with the first port.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: opticon: remove private usb-serial data
Johan Hovold [Sun, 18 Nov 2012 12:23:26 +0000 (13:23 +0100)]
USB: opticon: remove private usb-serial data

Remove redundant usb-serial field from private data.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: opticon: remove redundant initialisation
Johan Hovold [Sun, 18 Nov 2012 12:23:25 +0000 (13:23 +0100)]
USB: opticon: remove redundant initialisation

Remove redundant zero-initialisation of outstanding-urbs field in
kzalloced struct.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: opticon: remove private serial-device data
Johan Hovold [Sun, 18 Nov 2012 12:23:24 +0000 (13:23 +0100)]
USB: opticon: remove private serial-device data

Remove usb-serial-device field from private data as it can be accessed
from the usb-serial-port structure.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: opticon: use port device for error and debug
Johan Hovold [Sun, 18 Nov 2012 12:23:23 +0000 (13:23 +0100)]
USB: opticon: use port device for error and debug

Use port rather than interface device to report port related errors and
debug information.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: opticon: move private urb initialisation to attach
Johan Hovold [Sun, 18 Nov 2012 12:23:22 +0000 (13:23 +0100)]
USB: opticon: move private urb initialisation to attach

There no need to reinitialise the private urb at every open.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: opticon: remove redundant bulk urb fill
Johan Hovold [Sun, 18 Nov 2012 12:23:21 +0000 (13:23 +0100)]
USB: opticon: remove redundant bulk urb fill

The private bulk in urb is set up at open and does not need to be
reinitialised at every resubmit.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: core: Free the allocated memory before exiting on error
Sachin Kamat [Wed, 21 Nov 2012 05:31:19 +0000 (11:01 +0530)]
USB: core: Free the allocated memory before exiting on error

'new_interfaces' should be freed to avoid memory leak.

Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: usbtest: prevent a divide by zero bug
Dan Carpenter [Sat, 17 Nov 2012 15:06:11 +0000 (18:06 +0300)]
USB: usbtest: prevent a divide by zero bug

If param->length is zero, then this could lead to a divide by zero bug
later in the function when we do: size %= max;

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb: remove use of __devexit
Bill Pemberton [Mon, 19 Nov 2012 18:26:20 +0000 (13:26 -0500)]
usb: remove use of __devexit

CONFIG_HOTPLUG is going away as an option so __devexit is no
longer needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Peter Korsgaard <jacmet@sunsite.dk>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Cc: Li Yang <leoli@freescale.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb: remove use of __devinitconst
Bill Pemberton [Mon, 19 Nov 2012 18:25:20 +0000 (13:25 -0500)]
usb: remove use of __devinitconst

CONFIG_HOTPLUG is going away as an option so __devinitconst is no
longer needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Li Yang <leoli@freescale.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb: remove use of __devinitdata
Bill Pemberton [Mon, 19 Nov 2012 18:24:34 +0000 (13:24 -0500)]
usb: remove use of __devinitdata

CONFIG_HOTPLUG is going away as an option so __devinitdata is no
longer needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb: remove use of __devinit
Bill Pemberton [Mon, 19 Nov 2012 18:21:48 +0000 (13:21 -0500)]
usb: remove use of __devinit

CONFIG_HOTPLUG is going away as an option so __devinit is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Peter Korsgaard <jacmet@sunsite.dk>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Cc: Li Yang <leoli@freescale.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Geoff Levand <geoff@infradead.org>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: Olav Kongas <ok@artecdesign.ee>
Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb: remove use of __devexit_p
Bill Pemberton [Mon, 19 Nov 2012 18:21:08 +0000 (13:21 -0500)]
usb: remove use of __devexit_p

CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Cc: Peter Korsgaard <jacmet@sunsite.dk>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Cc: Li Yang <leoli@freescale.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb-core: remove CONFIG_HOTPLUG ifdefs
Bill Pemberton [Mon, 19 Nov 2012 18:19:16 +0000 (13:19 -0500)]
usb-core: remove CONFIG_HOTPLUG ifdefs

Remove conditional code based on CONFIG_HOTPLUG being false.  It's
always on now in preparation of it going away as an option.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agofirmware: remove last vestiges of dabusb
Tim Gardner [Wed, 21 Nov 2012 20:53:43 +0000 (12:53 -0800)]
firmware: remove last vestiges of dabusb

dabusb was removed with commit dae86ccbc3 ("[media] dabusb: remove
obsolete driver"), so remove the last vestiges of firmware and
documentation.

Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Cc: Rob Landley <rob@landley.net>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoMerge 3.7-rc6 into usb-next.
Greg Kroah-Hartman [Sat, 17 Nov 2012 02:46:21 +0000 (18:46 -0800)]
Merge 3.7-rc6 into usb-next.

This resolves a conflict with these files:
drivers/usb/early/ehci-dbgp.c
drivers/usb/host/ehci-ls1x.c
drivers/usb/host/ohci-xls.c
drivers/usb/musb/ux500.c

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoLinux 3.7-rc6
Linus Torvalds [Sat, 17 Nov 2012 01:42:40 +0000 (17:42 -0800)]
Linux 3.7-rc6

11 years agoMerge git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Sat, 17 Nov 2012 00:49:10 +0000 (16:49 -0800)]
Merge git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fix from Marcelo Tosatti:
 "A correction for oops on module init with older Intel hosts."

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: Fix invalid secondary exec controls in vmx_cpuid_update()

11 years agoMerge branch 'akpm' (Fixes from Andrew)
Linus Torvalds [Fri, 16 Nov 2012 23:26:38 +0000 (15:26 -0800)]
Merge branch 'akpm' (Fixes from Andrew)

Merge misc fixes from Andrew Morton.

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (12 patches)
  revert "mm: fix-up zone present pages"
  tmpfs: change final i_blocks BUG to WARNING
  tmpfs: fix shmem_getpage_gfp() VM_BUG_ON
  mm: highmem: don't treat PKMAP_ADDR(LAST_PKMAP) as a highmem address
  mm: revert "mm: vmscan: scale number of pages reclaimed by reclaim/compaction based on failures"
  rapidio: fix kernel-doc warnings
  swapfile: fix name leak in swapoff
  memcg: fix hotplugged memory zone oops
  mips, arc: fix build failure
  memcg: oom: fix totalpages calculation for memory.swappiness==0
  mm: fix build warning for uninitialized value
  mm: add anon_vma_lock to validate_mm()

11 years agorevert "mm: fix-up zone present pages"
Andrew Morton [Fri, 16 Nov 2012 22:15:06 +0000 (14:15 -0800)]
revert "mm: fix-up zone present pages"

Revert commit 7f1290f2f2a4 ("mm: fix-up zone present pages")

That patch tried to fix a issue when calculating zone->present_pages,
but it caused a regression on 32bit systems with HIGHMEM.  With that
change, reset_zone_present_pages() resets all zone->present_pages to
zero, and fixup_zone_present_pages() is called to recalculate
zone->present_pages when the boot allocator frees core memory pages into
buddy allocator.  Because highmem pages are not freed by bootmem
allocator, all highmem zones' present_pages becomes zero.

Various options for improving the situation are being discussed but for
now, let's return to the 3.6 code.

Cc: Jianguo Wu <wujianguo@huawei.com>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Petr Tesarik <ptesarik@suse.cz>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: David Rientjes <rientjes@google.com>
Tested-by: Chris Clayton <chris2553@googlemail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agotmpfs: change final i_blocks BUG to WARNING
Hugh Dickins [Fri, 16 Nov 2012 22:15:04 +0000 (14:15 -0800)]
tmpfs: change final i_blocks BUG to WARNING

Under a particular load on one machine, I have hit shmem_evict_inode()'s
BUG_ON(inode->i_blocks), enough times to narrow it down to a particular
race between swapout and eviction.

It comes from the "if (freed > 0)" asymmetry in shmem_recalc_inode(),
and the lack of coherent locking between mapping's nrpages and shmem's
swapped count.  There's a window in shmem_writepage(), between lowering
nrpages in shmem_delete_from_page_cache() and then raising swapped
count, when the freed count appears to be +1 when it should be 0, and
then the asymmetry stops it from being corrected with -1 before hitting
the BUG.

One answer is coherent locking: using tree_lock throughout, without
info->lock; reasonable, but the raw_spin_lock in percpu_counter_add() on
used_blocks makes that messier than expected.  Another answer may be a
further effort to eliminate the weird shmem_recalc_inode() altogether,
but previous attempts at that failed.

So far undecided, but for now change the BUG_ON to WARN_ON: in usual
circumstances it remains a useful consistency check.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agotmpfs: fix shmem_getpage_gfp() VM_BUG_ON
Hugh Dickins [Fri, 16 Nov 2012 22:15:03 +0000 (14:15 -0800)]
tmpfs: fix shmem_getpage_gfp() VM_BUG_ON

Fuzzing with trinity hit the "impossible" VM_BUG_ON(error) (which Fedora
has converted to WARNING) in shmem_getpage_gfp():

  WARNING: at mm/shmem.c:1151 shmem_getpage_gfp+0xa5c/0xa70()
  Pid: 29795, comm: trinity-child4 Not tainted 3.7.0-rc2+ #49
  Call Trace:
    warn_slowpath_common+0x7f/0xc0
    warn_slowpath_null+0x1a/0x20
    shmem_getpage_gfp+0xa5c/0xa70
    shmem_fault+0x4f/0xa0
    __do_fault+0x71/0x5c0
    handle_pte_fault+0x97/0xae0
    handle_mm_fault+0x289/0x350
    __do_page_fault+0x18e/0x530
    do_page_fault+0x2b/0x50
    page_fault+0x28/0x30
    tracesys+0xe1/0xe6

Thanks to Johannes for pointing to truncation: free_swap_and_cache()
only does a trylock on the page, so the page lock we've held since
before confirming swap is not enough to protect against truncation.

What cleanup is needed in this case? Just delete_from_swap_cache(),
which takes care of the memcg uncharge.

Signed-off-by: Hugh Dickins <hughd@google.com>
Reported-by: Dave Jones <davej@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomm: highmem: don't treat PKMAP_ADDR(LAST_PKMAP) as a highmem address
Will Deacon [Fri, 16 Nov 2012 22:15:00 +0000 (14:15 -0800)]
mm: highmem: don't treat PKMAP_ADDR(LAST_PKMAP) as a highmem address

kmap_to_page returns the corresponding struct page for a virtual address
of an arbitrary mapping.  This works by checking whether the address
falls in the pkmap region and using the pkmap page tables instead of the
linear mapping if appropriate.

Unfortunately, the bounds checking means that PKMAP_ADDR(LAST_PKMAP) is
incorrectly treated as a highmem address and we can end up walking off
the end of pkmap_page_table and subsequently passing junk to pte_page.

This patch fixes the bound check to stay within the pkmap tables.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomm: revert "mm: vmscan: scale number of pages reclaimed by reclaim/compaction based...
Mel Gorman [Fri, 16 Nov 2012 22:14:59 +0000 (14:14 -0800)]
mm: revert "mm: vmscan: scale number of pages reclaimed by reclaim/compaction based on failures"

Jiri Slaby reported the following:

(It's an effective revert of "mm: vmscan: scale number of pages
reclaimed by reclaim/compaction based on failures".) Given kswapd
had hours of runtime in ps/top output yesterday in the morning
and after the revert it's now 2 minutes in sum for the last 24h,
I would say, it's gone.

The intention of the patch in question was to compensate for the loss of
lumpy reclaim.  Part of the reason lumpy reclaim worked is because it
aggressively reclaimed pages and this patch was meant to be a sane
compromise.

When compaction fails, it gets deferred and both compaction and
reclaim/compaction is deferred avoid excessive reclaim.  However, since
commit c654345924f7 ("mm: remove __GFP_NO_KSWAPD"), kswapd is woken up
each time and continues reclaiming which was not taken into account when
the patch was developed.

Attempts to address the problem ended up just changing the shape of the
problem instead of fixing it.  The release window gets closer and while
a THP allocation failing is not a major problem, kswapd chewing up a lot
of CPU is.

This patch reverts commit 83fde0f22872 ("mm: vmscan: scale number of
pages reclaimed by reclaim/compaction based on failures") and will be
revisited in the future.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Zdenek Kabelac <zkabelac@redhat.com>
Tested-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Cc: Jiri Slaby <jirislaby@gmail.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Johannes Hirte <johannes.hirte@fem.tu-ilmenau.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agorapidio: fix kernel-doc warnings
Randy Dunlap [Fri, 16 Nov 2012 22:14:56 +0000 (14:14 -0800)]
rapidio: fix kernel-doc warnings

Fix rapidio kernel-doc warnings:

  Warning(drivers/rapidio/rio.c:415): No description found for parameter 'local'
  Warning(drivers/rapidio/rio.c:415): Excess function parameter 'lstart' description in 'rio_map_inb_region'
  Warning(include/linux/rio.h:290): No description found for parameter 'switches'
  Warning(include/linux/rio.h:290): No description found for parameter 'destid_table'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Matt Porter <mporter@kernel.crashing.org>
Acked-by: Alexandre Bounine <alexandre.bounine@idt.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoswapfile: fix name leak in swapoff
Xiaotian Feng [Fri, 16 Nov 2012 22:14:55 +0000 (14:14 -0800)]
swapfile: fix name leak in swapoff

There's a name leak introduced by commit 91a27b2a7567 ("vfs: define
struct filename and have getname() return it").  Add the missing
putname.

[akpm@linux-foundation.org: cleanup]
Signed-off-by: Xiaotian Feng <dannyfeng@tencent.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomemcg: fix hotplugged memory zone oops
Hugh Dickins [Fri, 16 Nov 2012 22:14:54 +0000 (14:14 -0800)]
memcg: fix hotplugged memory zone oops

When MEMCG is configured on (even when it's disabled by boot option),
when adding or removing a page to/from its lru list, the zone pointer
used for stats updates is nowadays taken from the struct lruvec.  (On
many configurations, calculating zone from page is slower.)

But we have no code to update all the lruvecs (per zone, per memcg) when
a memory node is hotadded.  Here's an extract from the oops which
results when running numactl to bind a program to a newly onlined node:

  BUG: unable to handle kernel NULL pointer dereference at 0000000000000f60
  IP:  __mod_zone_page_state+0x9/0x60
  Pid: 1219, comm: numactl Not tainted 3.6.0-rc5+ #180 Bochs Bochs
  Process numactl (pid: 1219, threadinfo ffff880039abc000, task ffff8800383c4ce0)
  Call Trace:
    __pagevec_lru_add_fn+0xdf/0x140
    pagevec_lru_move_fn+0xb1/0x100
    __pagevec_lru_add+0x1c/0x30
    lru_add_drain_cpu+0xa3/0x130
    lru_add_drain+0x2f/0x40
   ...

The natural solution might be to use a memcg callback whenever memory is
hotadded; but that solution has not been scoped out, and it happens that
we do have an easy location at which to update lruvec->zone.  The lruvec
pointer is discovered either by mem_cgroup_zone_lruvec() or by
mem_cgroup_page_lruvec(), and both of those do know the right zone.

So check and set lruvec->zone in those; and remove the inadequate
attempt to set lruvec->zone from lruvec_init(), which is called before
NODE_DATA(node) has been allocated in such cases.

Ah, there was one exceptionr.  For no particularly good reason,
mem_cgroup_force_empty_list() has its own code for deciding lruvec.
Change it to use the standard mem_cgroup_zone_lruvec() and
mem_cgroup_get_lru_size() too.  In fact it was already safe against such
an oops (the lru lists in danger could only be empty), but we're better
proofed against future changes this way.

I've marked this for stable (3.6) since we introduced the problem in 3.5
(now closed to stable); but I have no idea if this is the only fix
needed to get memory hotadd working with memcg in 3.6, and received no
answer when I enquired twice before.

Reported-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Konstantin Khlebnikov <khlebnikov@openvz.org>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomips, arc: fix build failure
David Rientjes [Fri, 16 Nov 2012 22:14:52 +0000 (14:14 -0800)]
mips, arc: fix build failure

Using a cross-compiler to fix another issue, the following build error
occurred for mips defconfig:

  arch/mips/fw/arc/misc.c: In function 'ArcHalt':
  arch/mips/fw/arc/misc.c:25:2: error: implicit declaration of function 'local_irq_disable'

Fix it up by including irqflags.h.

Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomemcg: oom: fix totalpages calculation for memory.swappiness==0
Michal Hocko [Fri, 16 Nov 2012 22:14:49 +0000 (14:14 -0800)]
memcg: oom: fix totalpages calculation for memory.swappiness==0

oom_badness() takes a totalpages argument which says how many pages are
available and it uses it as a base for the score calculation.  The value
is calculated by mem_cgroup_get_limit which considers both limit and
total_swap_pages (resp.  memsw portion of it).

This is usually correct but since fe35004fbf9e ("mm: avoid swapping out
with swappiness==0") we do not swap when swappiness is 0 which means
that we cannot really use up all the totalpages pages.  This in turn
confuses oom score calculation if the memcg limit is much smaller than
the available swap because the used memory (capped by the limit) is
negligible comparing to totalpages so the resulting score is too small
if adj!=0 (typically task with CAP_SYS_ADMIN or non zero oom_score_adj).
A wrong process might be selected as result.

The problem can be worked around by checking mem_cgroup_swappiness==0
and not considering swap at all in such a case.

Signed-off-by: Michal Hocko <mhocko@suse.cz>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomm: fix build warning for uninitialized value
David Rientjes [Fri, 16 Nov 2012 22:14:48 +0000 (14:14 -0800)]
mm: fix build warning for uninitialized value

do_wp_page() sets mmun_called if mmun_start and mmun_end were
initialized and, if so, may call mmu_notifier_invalidate_range_end()
with these values.  This doesn't prevent gcc from emitting a build
warning though:

  mm/memory.c: In function `do_wp_page':
  mm/memory.c:2530: warning: `mmun_start' may be used uninitialized in this function
  mm/memory.c:2531: warning: `mmun_end' may be used uninitialized in this function

It's much easier to initialize the variables to impossible values and do
a simple comparison to determine if they were initialized to remove the
bool entirely.

Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomm: add anon_vma_lock to validate_mm()
Michel Lespinasse [Fri, 16 Nov 2012 22:14:47 +0000 (14:14 -0800)]
mm: add anon_vma_lock to validate_mm()

Iterating over the vma->anon_vma_chain without anon_vma_lock may cause
NULL ptr deref in anon_vma_interval_tree_verify(), because the node in the
chain might have been removed.

  BUG: unable to handle kernel paging request at fffffffffffffff0
  IP: [<ffffffff8122c29c>] anon_vma_interval_tree_verify+0xc/0xa0
  PGD 4e28067 PUD 4e29067 PMD 0
  Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
  CPU 0
  Pid: 9050, comm: trinity-child64 Tainted: G        W    3.7.0-rc2-next-20121025-sasha-00001-g673f98e-dirty #77
  RIP: 0010: anon_vma_interval_tree_verify+0xc/0xa0
  Process trinity-child64 (pid: 9050, threadinfo ffff880045f80000, task ffff880048eb0000)
  Call Trace:
    validate_mm+0x58/0x1e0
    vma_adjust+0x635/0x6b0
    __split_vma.isra.22+0x161/0x220
    split_vma+0x24/0x30
    sys_madvise+0x5da/0x7b0
    tracesys+0xe1/0xe6
  RIP  anon_vma_interval_tree_verify+0xc/0xa0
  CR2: fffffffffffffff0

Figured out by Bob Liu.

Reported-by: Sasha Levin <sasha.levin@oracle.com>
Cc: Bob Liu <lliubbo@gmail.com>
Signed-off-by: Michel Lespinasse <walken@google.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoKVM: x86: Fix invalid secondary exec controls in vmx_cpuid_update()
Takashi Iwai [Fri, 9 Nov 2012 14:20:17 +0000 (15:20 +0100)]
KVM: x86: Fix invalid secondary exec controls in vmx_cpuid_update()

The commit [ad756a16: KVM: VMX: Implement PCID/INVPCID for guests with
EPT] introduced the unconditional access to SECONDARY_VM_EXEC_CONTROL,
and this triggers kernel warnings like below on old CPUs:

    vmwrite error: reg 401e value a0568000 (err 12)
    Pid: 13649, comm: qemu-kvm Not tainted 3.7.0-rc4-test2+ #154
    Call Trace:
     [<ffffffffa0558d86>] vmwrite_error+0x27/0x29 [kvm_intel]
     [<ffffffffa054e8cb>] vmcs_writel+0x1b/0x20 [kvm_intel]
     [<ffffffffa054f114>] vmx_cpuid_update+0x74/0x170 [kvm_intel]
     [<ffffffffa03629b6>] kvm_vcpu_ioctl_set_cpuid2+0x76/0x90 [kvm]
     [<ffffffffa0341c67>] kvm_arch_vcpu_ioctl+0xc37/0xed0 [kvm]
     [<ffffffff81143f7c>] ? __vunmap+0x9c/0x110
     [<ffffffffa0551489>] ? vmx_vcpu_load+0x39/0x1a0 [kvm_intel]
     [<ffffffffa0340ee2>] ? kvm_arch_vcpu_load+0x52/0x1a0 [kvm]
     [<ffffffffa032dcd4>] ? vcpu_load+0x74/0xd0 [kvm]
     [<ffffffffa032deb0>] kvm_vcpu_ioctl+0x110/0x5e0 [kvm]
     [<ffffffffa032e93d>] ? kvm_dev_ioctl+0x4d/0x4a0 [kvm]
     [<ffffffff8117dc6f>] do_vfs_ioctl+0x8f/0x530
     [<ffffffff81139d76>] ? remove_vma+0x56/0x60
     [<ffffffff8113b708>] ? do_munmap+0x328/0x400
     [<ffffffff81187c8c>] ? fget_light+0x4c/0x100
     [<ffffffff8117e1a1>] sys_ioctl+0x91/0xb0
     [<ffffffff815a942d>] system_call_fastpath+0x1a/0x1f

This patch adds a check for the availability of secondary exec
control to avoid these warnings.

Cc: <stable@vger.kernel.org> [v3.6+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
11 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Fri, 16 Nov 2012 22:10:15 +0000 (14:10 -0800)]
Merge git://git./linux/kernel/git/davem/net

Pull networking updates from David Miller:

 1) tx_filtered/ps_tx_buf queues need to be accessed with the SKB queue
    lock, from Arik Nemtsov.

 2) Don't call 802.11 driver's filter configure method until it's
    actually open, from Felix Fietkau.

 3) Use ieee80211_free_txskb otherwise we leak control information.
    From Johannes Berg.

 4) Fix memory leak in bluetooth UUID removal,f rom Johan Hedberg.

 5) The shift mask trick doesn't work properly when 'optname' is out of
    range in do_ip_setsockopt().  Use a straightforward switch statement
    instead, the compiler emits essentially the same code but without
    the missing range check.  From Xi Wang.

 6) Fix when we call tcp_replace_ts_recent() otherwise we can
    erroneously accept a too-high tsval.  From Eric Dumazet.

 7) VXLAN bug fixes, mostly to do with VLAN header length handling, from
    Alexander Duyck.

 8) Missing return value initialization for IPV6_MINHOPCOUNT socket
    option handling.  From Hannes Frederic.

 9) Fix regression in tasklet handling in jme/ksz884x/xilinx drivers,
    from Xiaotian Feng.

10) At smsc911x driver init time, we don't know if the chip is in word
    swap mode or not.  However we do need to wait for the control
    register's ready bit to be set before we program any other part of
    the chip.  Adjust the wait loop to account for this.  From Kamlakant
    Patel.

11) Revert erroneous MDIO bus unregister change to mdio-bitbang.c

12) Fix memory leak in /proc/net/sctp/, from Tommi Rantala.

13) tilegx driver registers IRQ with NULL name, oops, from Simon Marchi.

14) TCP metrics hash table kzalloc() based allocation can fail, back
    down to using vmalloc() if it does.  From Eric Dumazet.

15) Fix packet steering out-of-order delivery regression, from Tom
    Herbert.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (40 commits)
  net-rps: Fix brokeness causing OOO packets
  tcp: handle tcp_net_metrics_init() order-5 memory allocation failures
  batman-adv: process broadcast packets in BLA earlier
  batman-adv: don't add TEMP clients belonging to other backbone nodes
  batman-adv: correctly pass the client flag on tt_response
  batman-adv: fix tt_global_entries flags update
  tilegx: request_irq with a non-null device name
  net: correct check in dev_addr_del()
  tcp: fix retransmission in repair mode
  sctp: fix /proc/net/sctp/ memory leak
  Revert "drivers/net/phy/mdio-bitbang.c: Call mdiobus_unregister before mdiobus_free"
  net/smsc911x: Fix ready check in cases where WORD_SWAP is needed
  drivers/net: fix tasklet misuse issue
  ipv4/ip_vti.c: VTI fix post-decryption forwarding
  brcmfmac: fix typo in CONFIG_BRCMISCAN
  vxlan: Update hard_header_len based on lowerdev when instantiating VXLAN
  vxlan: fix a typo.
  ipv6: setsockopt(IPIPPROTO_IPV6, IPV6_MINHOPCOUNT) forgot to set return value
  doc/net: Fix typo in netdev-features.txt
  vxlan: Fix error that was resulting in VXLAN MTU size being 10 bytes too large
  ...

11 years agoMerge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville...
David S. Miller [Fri, 16 Nov 2012 19:37:18 +0000 (14:37 -0500)]
Merge branch 'for-davem' of git://git./linux/kernel/git/linville/wireless

John W. Linville says:

====================
This batch of fixes is intended for the 3.7 stream...

This includes a pull of the Bluetooth tree.  Gustavo says:

"A few important fixes to go into 3.7. There is a new hw support by Marcos
Chaparro. Johan added a memory leak fix and hci device index list fix.
Also Marcel fixed a race condition in the device set up that was prevent the
bt monitor to work properly. Last, Paulo Sérgio added a fix to the error
status when pairing for LE fails. This was prevent userspace to work to handle
the failure properly."

Regarding the mac80211 pull, Johannes says:

"I have a locking fix for some SKB queues, a variable initialization to
avoid crashes in a certain failure case, another free_txskb fix from
Felix and another fix from him to avoid calling a stopped driver, a fix
for a (very unlikely) memory leak and a fix to not send null data
packets when resuming while not associated."

Regarding the iwlwifi pull, Johannes says:

"Two more fixes for iwlwifi ... one to use ieee80211_free_txskb(), and
one to check DMA mapping errors, please pull."

On top of that, Johannes also included a wireless regulatory fix
to allow 40 MHz on channels 12 and 13 in world roaming mode.  Also,
Hauke Mehrtens fixes a #ifdef typo in brcmfmac.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agonet-rps: Fix brokeness causing OOO packets
Tom Herbert [Fri, 16 Nov 2012 09:04:15 +0000 (09:04 +0000)]
net-rps: Fix brokeness causing OOO packets

In commit c445477d74ab3779 which adds aRFS to the kernel, the CPU
selected for RFS is not set correctly when CPU is changing.
This is causing OOO packets and probably other issues.

Signed-off-by: Tom Herbert <therbert@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoMerge tag 'batman-adv-fix-for-davem' of git://git.open-mesh.org/linux-merge
David S. Miller [Fri, 16 Nov 2012 18:38:12 +0000 (13:38 -0500)]
Merge tag 'batman-adv-fix-for-davem' of git://git.open-mesh.org/linux-merge

Included fixes are:
- update the client entry status flags when using the "early client
  detection". This makes the Distributed AP isolation correctly work;
- transfer the client entry status flags when recovering the translation
  table from another node. This makes the Distributed AP isolation correctly
  work;
- prevent the "early client detection mechanism" to add clients belonging to
  other backbone nodes in the same LAN. This breaks connectivity when using this
  mechanism together with the Bridge Loop Avoidance
- process broadcast packets with the Bridge Loop Avoidance before any other
  component. BLA can possibly drop the packets based on the source address. This
  makes the "early client detection mechanism" correctly work when used with
  BLA.

Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agotcp: handle tcp_net_metrics_init() order-5 memory allocation failures
Eric Dumazet [Fri, 16 Nov 2012 05:31:53 +0000 (05:31 +0000)]
tcp: handle tcp_net_metrics_init() order-5 memory allocation failures

order-5 allocations can fail with current kernels, we should
try vmalloc() as well.

Reported-by: Julien Tinnes <jln@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoThermal: Add Linux/Thermal subsystem info in MAINTAINER file
Zhang Rui [Thu, 15 Nov 2012 00:58:27 +0000 (08:58 +0800)]
Thermal: Add Linux/Thermal subsystem info in MAINTAINER file

All the changes made to the generic thermal layer, or platform thermal
drivers that make use of the thermal layer, should be sent to
linux-pm@vger.kernel.org for discussion.

And as the maintainer, I will only apply the patches that have been sent
to linux-pm@vger.kernel.org.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agomm, oom: reintroduce /proc/pid/oom_adj
David Rientjes [Tue, 13 Nov 2012 01:53:04 +0000 (17:53 -0800)]
mm, oom: reintroduce /proc/pid/oom_adj

This is mostly a revert of 01dc52ebdf47 ("oom: remove deprecated oom_adj")
from Davidlohr Bueso.

It reintroduces /proc/pid/oom_adj for backwards compatibility with earlier
kernels.  It simply scales the value linearly when /proc/pid/oom_score_adj
is written.

The major difference is that its scheduled removal is no longer included
in Documentation/feature-removal-schedule.txt.  We do warn users with a
single printk, though, to suggest the more powerful and supported
/proc/pid/oom_score_adj interface.

Reported-by: Artem S. Tashkinov <t.artem@lycos.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 years agoMerge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm...
Linus Torvalds [Fri, 16 Nov 2012 18:08:45 +0000 (10:08 -0800)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "We've been sitting on this longer than we meant to due to travel and
  other activities, but the number of patches is luckily not that high.

  Biggest changes are from a batch of OMAP bugfixes, but there are a few
  for the broader set of SoCs too (bcm2835, pxa, highbank, tegra, at91
  and i.MX).

  The OMAP patches contain some fixes for MUSB/PHY on omap4 which ends
  up being a bit on the large side but needed for legacy (non-DT)
  platforms.  Beyond that there are a handful of hwmod/pm changes.

  So, fairly noncontroversial stuff all in all, and as usual around this
  time the fixes are well targeted at specific problems."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: imx: ehci: fix host power mask bit
  ARM i.MX: fix error-valued pointer dereference in clk_register_gate2()
  ARM: at91/usbh: fix overcurrent gpio setup
  ARM: at91/AT91SAM9G45: fix crypto peripherals irq issue due to sparse irq support
  ARM: boot: Fix usage of kecho
  ARM: OMAP: ocp2scp: create omap device for ocp2scp
  ARM: OMAP4: add _dev_attr_ to ocp2scp for representing usb_phy
  drivers: bus: ocp2scp: add pdata support
  irqchip: irq-bcm2835: Add terminating entry for of_device_id table
  ARM: highbank: retry wfi on reset request
  ARM: OMAP4: PM: fix regulator name for VDD_MPU
  ARM: OMAP4: hwmod data: do not enable or reset the McPDM during kernel init
  ARM: OMAP2+: hwmod: add flag to prevent hwmod code from touching IP block during init
  ARM: dt: tegra: fix length of pad control and mux registers
  ARM: OMAP: hwmod: wait for sysreset complete after enabling hwmod
  ARM: OMAP2+: clockdomain: Fix OMAP4 ISS clk domain to support only SWSUP
  ARM: pxa/spitz_pm: Fix hang when resuming from STR
  ARM: pxa: hx4700: Fix backlight PWM device number
  ARM: OMAP2+: PM: add missing newline to VC warning message

11 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
John W. Linville [Fri, 16 Nov 2012 17:59:13 +0000 (12:59 -0500)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless into for-davem

11 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas...
Linus Torvalds [Fri, 16 Nov 2012 16:32:07 +0000 (08:32 -0800)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/cmarinas/linux-aarch64

Pull arm64 bugfix from Catalin Marinas:
 "Arm64 page permission bug fix.

  Without this fix, the CPU speculatively accesses the interrupt
  controller memory causing random IRQ acknowledge."

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
  arm64: Distinguish between user and kernel XN bits

11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Linus Torvalds [Fri, 16 Nov 2012 15:58:20 +0000 (07:58 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid

Pull HID fix from Jiri Kosina:
 "This has a build fix for architectures where memcmp() is macro, from
  Jiri Slaby"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: microsoft: do not use compound literal - fix build

11 years agoarm64: Distinguish between user and kernel XN bits
Catalin Marinas [Thu, 15 Nov 2012 17:21:16 +0000 (17:21 +0000)]
arm64: Distinguish between user and kernel XN bits

On AArch64, the meaning of the XN bit has changed to UXN (user). The PXN
(privileged) bit must be set to prevent kernel execution. Without the
PXN bit set, the CPU may speculatively access device memory. This patch
ensures that all the mappings that the kernel must not execute from
(including user mappings) have the PXN bit set.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
11 years agoMerge tag 'usb-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Fri, 16 Nov 2012 15:47:18 +0000 (07:47 -0800)]
Merge tag 'usb-3.7-rc5' of git://git./linux/kernel/git/gregkh/usb

Pull USB fixes from Greg Kroah-Hartman:
 "Here are some USB fixes for the 3.7 tree.

  Nothing huge here, just a number of tiny bugfixes resolving issues
  that have been found, and two reverts of patches that were found to
  have caused problems.

  All of these have been in linux-next already.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'usb-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  Revert "USB/host: Cleanup unneccessary irq disable code"
  USB: option: add Alcatel X220/X500D USB IDs
  USB: option: add Novatel E362 and Dell Wireless 5800 USB IDs
  USB: keyspan: fix typo causing GPF on open
  USB: fix build with XEN and EARLY_PRINTK_DBGP enabled but USB_SUPPORT disabled
  USB: usb_wwan: fix bulk-urb allocation
  usb: otg: Fix build errors if USB_MUSB_OMAP2PLUS is selected as module
  usb: musb: ux500: fix 'musbid' undeclared error in ux500_remove()
  Revert "usb: musb: use DMA mode 1 whenever possible"

11 years agoMerge tag 'tty-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Linus Torvalds [Fri, 16 Nov 2012 15:46:38 +0000 (07:46 -0800)]
Merge tag 'tty-3.7-rc5' of git://git./linux/kernel/git/gregkh/tty

Pull TTY fixes from Greg Kroah-Hartman:
 "Here are two TTY driver fixes for 3.7-rc5.

  They resolve a bug in the hvc driver that has been reported, and fix a
  problem with the list of device ids in the max310x serial driver.

  Both have been in linux-next for a while.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'tty-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: serial: max310x: Add terminating entry for spi_device_id table
  TTY: hvc_console, fix port reference count going to zero prematurely

11 years agoMerge tag 'staging-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Fri, 16 Nov 2012 15:46:04 +0000 (07:46 -0800)]
Merge tag 'staging-3.7-rc5' of git://git./linux/kernel/git/gregkh/staging

Pull staging tree fix from Greg Kroah-Hartman:
 "Here is a single patch, a revert of an android driver patch, that
  resolves a bug that has been reported in the Android alarm driver.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'staging-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  Revert "Staging: Android alarm: IOCTL command encoding fix"

11 years agoMerge tag 'at91-fixes' of git://github.com/at91linux/linux-at91 into fixes
Arnd Bergmann [Fri, 16 Nov 2012 15:43:58 +0000 (16:43 +0100)]
Merge tag 'at91-fixes' of git://github.com/at91linux/linux-at91 into fixes

From Nicolas Ferre <nicolas.ferre@atmel.com>:

Two little fixes, one related to the move to sparse irq and
another one fixing the check of a GPIO for USB host overcurrent.

* tag 'at91-fixes' of git://github.com/at91linux/linux-at91:
  ARM: at91/usbh: fix overcurrent gpio setup
  ARM: at91/AT91SAM9G45: fix crypto peripherals irq issue due to sparse irq support

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
11 years agoMerge tag 'imx-fixes-rc' of git://git.pengutronix.de/git/imx/linux-2.6 into fixes
Arnd Bergmann [Fri, 16 Nov 2012 15:42:59 +0000 (16:42 +0100)]
Merge tag 'imx-fixes-rc' of git://git.pengutronix.de/git/imx/linux-2.6 into fixes

From Sascha Hauer <s.hauer@pengutronix.de>:

ARM i.MX fixes for 3.7-rc

* tag 'imx-fixes-rc' of git://git.pengutronix.de/git/imx/linux-2.6:
  ARM: imx: ehci: fix host power mask bit
  ARM i.MX: fix error-valued pointer dereference in clk_register_gate2()

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
11 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Fri, 16 Nov 2012 15:39:30 +0000 (07:39 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/s390/linux

Pull s390 patches from Martin Schwidefsky:
 "Some more bug fixes and a config change.

  The signal bug is nasty, if the clock_gettime vdso function is
  interrupted by a signal while in access-register-mode we end up with
  an endless signal loop until the signal stack is full.  The config
  change is for aligned struct pages, gives us 8% improvement with
  hackbench."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/3215: fix tty close handling
  s390/mm: have 16 byte aligned struct pages
  s390/gup: fix access_ok() usage in __get_user_pages_fast()
  s390/gup: add missing TASK_SIZE check to get_user_pages_fast()
  s390/topology: fix core id vs physical package id mix-up
  s390/signal: set correct address space control

11 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Fri, 16 Nov 2012 15:32:32 +0000 (07:32 -0800)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "All pretty normal: one TTM oops fix, one radeon, a few intel and a
  vmwgfx fix."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/ttm: remove unneeded preempt_disable/enable
  ttm: Clear the ttm page allocated from high memory zone correctly
  vmwgfx: return an -EFAULT if copy_to_user() fails
  drm/radeon: fix logic error in atombios_encoders.c
  drm/i915: do not ignore eDP bpc settings from vbt
  drm/i915/sdvo: clean up connectors on intel_sdvo_init() failures
  drm/i915/crt: fix DPMS standby and suspend mode handling

11 years agoMerge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux
Linus Torvalds [Fri, 16 Nov 2012 15:19:45 +0000 (07:19 -0800)]
Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux

Pull another clk layer fix from Michael Turquette:
 "GCC 4.7 users get compilation errors from unnecessary use of inline in
  clk-provider.h.  This pull request fixes the regression by removing
  inline usage from those function declarations."

* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux:
  clk: remove inline usage from clk-provider.h

11 years agoARM: imx: ehci: fix host power mask bit
Christoph Fritz [Fri, 16 Nov 2012 14:39:24 +0000 (15:39 +0100)]
ARM: imx: ehci: fix host power mask bit

This patch sets HPM (Host power mask bit) to bit 16 according to i.MX
Reference Manual. Falsely it was set to bit 8, but this controls pull-up
Impedance.

Reported-by: Michael Burkey <mdburkey@gmail.com>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Acked-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
11 years agoARM i.MX: fix error-valued pointer dereference in clk_register_gate2()
Wei Yongjun [Thu, 25 Oct 2012 15:02:18 +0000 (23:02 +0800)]
ARM i.MX: fix error-valued pointer dereference in clk_register_gate2()

The error-valued pointer clk is used for the arg of kfree, it should be
kfree(gate) if clk_register() return ERR_PTR().

dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
11 years agousb: dwc3: core: move dwc3_cache_hwparams before dwc3_alloc_event_buffers
Kishon Vijay Abraham I [Fri, 16 Nov 2012 06:37:54 +0000 (12:07 +0530)]
usb: dwc3: core: move dwc3_cache_hwparams before dwc3_alloc_event_buffers

commit 392142 moved event buffer allocation out of dwc3_core_init() but
event buffer allocation uses the cached copy of hwparams to determine
the number of event buffers and the caching is done in dwc3_core_init.
So moved dwc3_cache_hwparams function before dwc3_alloc_event_buffers so
that dwc3_alloc_event_buffers sees the correct number of event buffers.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoARM: at91/usbh: fix overcurrent gpio setup
Johan Hovold [Wed, 14 Nov 2012 11:18:17 +0000 (12:18 +0100)]
ARM: at91/usbh: fix overcurrent gpio setup

Use gpio_is_valid also for overcurrent pins (which are currently
negative in many board files).

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
11 years agoARM: at91/AT91SAM9G45: fix crypto peripherals irq issue due to sparse irq support
Nicolas Royer [Tue, 6 Nov 2012 16:31:03 +0000 (17:31 +0100)]
ARM: at91/AT91SAM9G45: fix crypto peripherals irq issue due to sparse irq support

Spare irq support introduced by commit 8fe82a5 (ARM: at91: sparse irq support)
involves to add the NR_IRQS_LEGACY offset to irq number.

Signed-off-by: Nicolas Royer <nicolas@eukrea.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Eric Bénard <eric@eukrea.com>
Tested-by: Eric Bénard <eric@eukrea.com>
Cc: stable@vger.kernel.org # 3.6
11 years agobatman-adv: process broadcast packets in BLA earlier
Antonio Quartulli [Thu, 8 Nov 2012 20:55:30 +0000 (21:55 +0100)]
batman-adv: process broadcast packets in BLA earlier

The logic in the BLA mechanism may decide to drop broadcast packets
because the node may still be in the setup phase. For this reason,
further broadcast processing like the early client detection mechanism
must be done only after the BLA check.

This patches moves the invocation to BLA before any other broadcast
processing.

This was introduced 30cfd02b60e1cb16f5effb0a01f826c5bb7e4c59
("batman-adv: detect not yet announced clients")

Reported-by: Glen Page <glen.page@thet.net>
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
11 years agobatman-adv: don't add TEMP clients belonging to other backbone nodes
Antonio Quartulli [Thu, 8 Nov 2012 20:55:29 +0000 (21:55 +0100)]
batman-adv: don't add TEMP clients belonging to other backbone nodes

The "early client detection" mechanism must not add clients belonging
to other backbone nodes. Such clients must be reached by directly
using the LAN instead of the mesh.

This was introduced by 30cfd02b60e1cb16f5effb0a01f826c5bb7e4c59
("batman-adv: detect not yet announced clients")

Reported-by: Glen Page <glen.page@thet.net>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
11 years agobatman-adv: correctly pass the client flag on tt_response
Antonio Quartulli [Thu, 8 Nov 2012 13:21:11 +0000 (14:21 +0100)]
batman-adv: correctly pass the client flag on tt_response

When a TT response with the full table is sent, the client flags
should be sent as well. This patch fix the flags assignment when
populating the tt_response to send back

This was introduced by 30cfd02b60e1cb16f5effb0a01f826c5bb7e4c59
("batman-adv: detect not yet announced clients")

Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
11 years agobatman-adv: fix tt_global_entries flags update
Antonio Quartulli [Wed, 7 Nov 2012 14:05:33 +0000 (15:05 +0100)]
batman-adv: fix tt_global_entries flags update

Flags carried by a change_entry have to be always copied into the
client entry as they may contain important attributes (e.g.
TT_CLIENT_WIFI).

For instance, a client added by means of the "early detection
mechanism" has no flag set at the beginning, so they must be updated once the
proper ADD event is received.

This was introduced by 30cfd02b60e1cb16f5effb0a01f826c5bb7e4c59
("batman-adv: detect not yet announced clients")

Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
11 years agotilegx: request_irq with a non-null device name
Simon Marchi [Thu, 15 Nov 2012 18:13:19 +0000 (18:13 +0000)]
tilegx: request_irq with a non-null device name

This patch simply makes the tilegx net driver call request_irq with a
non-null name. It makes the output in /proc/interrupts more obvious, but
also helps tools that don't expect to find null there.

Signed-off-by: Simon Marchi <simon.marchi@polymtl.ca>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agousb: phy: change phy notify connect/disconnect API
Peter Chen [Fri, 9 Nov 2012 01:44:44 +0000 (09:44 +0800)]
usb: phy: change phy notify connect/disconnect API

The old parameter "port" is useless for phy notify, as one usb
phy is only for one usb port. New parameter "speed" stands for
the device's speed which is on the port, this "speed" parameter
is needed at some platforms which will do some phy operations
according to device's speed.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Tested-by: Mike Thompson <mpthompson@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb: refine phy notify operation during connection and disconnection
Peter Chen [Fri, 9 Nov 2012 01:44:43 +0000 (09:44 +0800)]
usb: refine phy notify operation during connection and disconnection

At commit 925aa46ba963a4da6d8ee6ab1d04a02ffa8db62b, Richard Zhao
<richard.zhao@freescale.com> adds the phy notification callback
when port change occurs. In fact, this phy notification should
be added according to below rules:

1. Only set HW_USBPHY_CTRL.ENHOSTDISCONDETECT
during high speed host mode.
2. Do not set HW_USBPHY_CTRL.ENHOSTDISCONDETECT
during the reset and speed negotiation period.
3. Do not set HW_USBPHY_CTRL.ENHOSTDISCONDETECT
during host suspend/resume sequence.

Please refer: i.mx23RM(page: 413) for below rules.
http://www.freescale.com/files/dsp/doc/ref_manual/IMX23RM.pdf

Freescale i.MX SoC, i.mx23, i.mx28 and i.mx6(i.mx6SL does not
need to follow the 3rd rule) need to follow above rules.

Current code set connect notification (HW_USBPHY_CTRL.ENHOSTDISCONDETECT)
at hub_port_connect_change, it conflicts with above the 2th rule.

The correct notification setting method should be:
1. Set connect notify after the second bus reset.
2. Set disconnect notify after disconnection.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Tested-by: Mike Thompson <mpthompson@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agousb: mxs-phy: re-init phy during the connection is useless
Peter Chen [Fri, 9 Nov 2012 01:44:42 +0000 (09:44 +0800)]
usb: mxs-phy: re-init phy during the connection is useless

As phy is working, re-init phy may cause unexpected results

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoRevert "usb: otg: mxs-phy: Fix mx23 operation"
Peter Chen [Fri, 9 Nov 2012 01:44:41 +0000 (09:44 +0800)]
Revert "usb: otg: mxs-phy: Fix mx23 operation"

The real reason causes mx23 fail are:

- Calling mxs_phy_hw_init(mxs_phy) again at connection
- Error connect/disconnect nodity at hub.c

The coming patch will fix above two problems, Mike Thompson
tested his hardware works OK after commented out this delay
setting.

This reverts commit 363366cf61c544ea476f3d220f43a95cb03014f5.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agocdc-acm: implement TIOCSSERIAL to avoid blocking close(2)
Dan Williams [Thu, 8 Nov 2012 18:47:41 +0000 (12:47 -0600)]
cdc-acm: implement TIOCSSERIAL to avoid blocking close(2)

Some devices (ex Nokia C7) simply don't respond at all when data is sent
to some of their USB interfaces.  The data gets stuck in the TTYs queue
and sits there until close(2), which them blocks because closing_wait
defaults to 30 seconds (even though the fd is O_NONBLOCK).  This is
rarely desired.  Implement the standard mechanism to adjust closing_wait
and let applications handle it how they want to.

See also 02303f73373aa1da19dbec510ec5a4e2576f9610 for usb_wwan.c.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Cc: stable <stable@vger.kernel.org>
Acked-by: Oliver Neukum <oneukum@suse.de>
Tested-by: Aleksander Morgado <aleksander@gnu.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agodrivers/uwb: remove depends on CONFIG_EXPERIMENTAL
Kees Cook [Mon, 5 Nov 2012 23:04:35 +0000 (15:04 -0800)]
drivers/uwb: remove depends on CONFIG_EXPERIMENTAL

The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoUSB: fix authorization and claimed port logic
Hindin Joseph [Sun, 4 Nov 2012 20:50:08 +0000 (22:50 +0200)]
USB: fix authorization and claimed port logic

    It looks like I've run into some inconsistency in the USB stack behavior.

    The USB stack maintains, among others, two states for the attach
USB device: authorized and owned. Authorization state is accessible to
the user space code through correspondent sysfs files, the ownership
can be set by claiming the hub's port with ioctl call. Both state may
be set before the device is attached, by access the hub settings. When
the new device is attached, both authorization and ownership prevent
the kernel USB stack from setting the newly attached device
configuration, but when the device is authorized, the ownership state
is ignored. It looks like ignoring the ownership state on
authorization make the stack behavior inconsistent; it also prevents
the user space code from completely overriding configuration
selection, important for implementing workarounds for bugs in the
device configuration selection.

   The following patch makes the stack behavior more consistent, by
moving ownership test into usb_choose_configuration - the later
function is used both by generic_probe and usb_authorize_device

Signed-off-by: Joseph Hindin <hindin@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 years agoMerge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel...
Dave Airlie [Fri, 16 Nov 2012 00:00:43 +0000 (10:00 +1000)]
Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes

Daniel writes:
Just a few small things to fix regressions, somehow all patches from Jani:
- Fix dpms confusion about which platforms support intermediate modes on
  vga.
- Revert the "ignore vbt for eDP bpc" patch, it breaks machines. This will
  annoy mbp retina owners again, but windows machines seem to _really_
  depend upon this. We can try to quirk the mbp retinas again in 3.8 and
  backport the patch.
- Fix connector leaks when the sdvo setup failed, resulted in an OOPS
  later on when trying to probe that connector (with it's encoder kfree'd
  already).

* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
  drm/i915: do not ignore eDP bpc settings from vbt
  drm/i915/sdvo: clean up connectors on intel_sdvo_init() failures
  drm/i915/crt: fix DPMS standby and suspend mode handling

11 years agoMerge branch 'drm-fixes-3.7' of git://people.freedesktop.org/~agd5f/linux into drm...
Dave Airlie [Fri, 16 Nov 2012 00:00:24 +0000 (10:00 +1000)]
Merge branch 'drm-fixes-3.7' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

Just a single radeon fix from Alex.

* 'drm-fixes-3.7' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: fix logic error in atombios_encoders.c

11 years agodrm/ttm: remove unneeded preempt_disable/enable
Akinobu Mita [Fri, 9 Nov 2012 12:10:43 +0000 (12:10 +0000)]
drm/ttm: remove unneeded preempt_disable/enable

It is unnecessary to disable preemption explicitly while calling
copy_highpage().  Because copy_highpage() will do it again through
kmap_atomic/kunmap_atomic.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agottm: Clear the ttm page allocated from high memory zone correctly
Zhao Yakui [Tue, 13 Nov 2012 18:31:55 +0000 (18:31 +0000)]
ttm: Clear the ttm page allocated from high memory zone correctly

The TTM page can be allocated from high memory. In such case it is
wrong to use the page_address(page) as the virtual address for the high memory
page.

bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=50241

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agovmwgfx: return an -EFAULT if copy_to_user() fails
Dan Carpenter [Mon, 12 Nov 2012 11:07:24 +0000 (11:07 +0000)]
vmwgfx: return an -EFAULT if copy_to_user() fails

copy_to_user() returns the number of bytes remaining to be copied, but
we want to return a negative error code here.  I fixed a couple of these
last year, but I missed this one.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
11 years agonet: correct check in dev_addr_del()
Jiri Pirko [Wed, 14 Nov 2012 02:51:04 +0000 (02:51 +0000)]
net: correct check in dev_addr_del()

Check (ha->addr == dev->dev_addr) is always true because dev_addr_init()
sets this. Correct the check to behave properly on addr removal.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agotcp: fix retransmission in repair mode
Andrew Vagin [Thu, 15 Nov 2012 04:03:17 +0000 (04:03 +0000)]
tcp: fix retransmission in repair mode

Currently if a socket was repaired with a few packet in a write queue,
a kernel bug may be triggered:

kernel BUG at net/ipv4/tcp_output.c:2330!
RIP: 0010:[<ffffffff8155784f>] tcp_retransmit_skb+0x5ff/0x610

According to the initial realization v3.4-rc2-963-gc0e88ff,
all skb-s should look like already posted. This patch fixes code
according with this sentence.

Here are three points, which were not done in the initial patch:
1. A tcp send head should not be changed
2. Initialize TSO state of a skb
3. Reset the retransmission time

This patch moves logic from tcp_sendmsg to tcp_write_xmit. A packet
passes the ussual way, but isn't sent to network. This patch solves
all described problems and handles tcp_sendpages.

Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: James Morris <jmorris@namei.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Patrick McHardy <kaber@trash.net>
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Acked-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
11 years agoclk: remove inline usage from clk-provider.h
Igor Mazanov [Thu, 15 Nov 2012 17:07:00 +0000 (21:07 +0400)]
clk: remove inline usage from clk-provider.h

Users of GCC 4.7 have reported compiler errors due to having inline
applied to function declarations in clk-provider.h.  The definitions
exist in drivers/clk/clk.c.  An example error:

In file included from arch/arm/mach-omap2/clockdomain.c:25:0:
arch/arm/mach-omap2/clockdomain.c: In function ‘clkdm_clk_disable’:
include/linux/clk-provider.h:338:12: error: inlining failed in call to always_inline ‘__clk_get_enable_count’: function body not available
arch/arm/mach-omap2/clockdomain.c:1001:28: error: called from here
make[1]: *** [arch/arm/mach-omap2/clockdomain.o] Error 1
make: *** [arch/arm/mach-omap2] Error 2

This patch removes the use of inline from include/linux/clk-provider.h
but keeps the function definitions in drivers/clk/clk.c as inlined since
they are one-liners.

Signed-off-by: Igor Mazanov <i.mazanov@gmail.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
[mturquette@linaro.org: improved subject, added changelog]

11 years agoMerge tag 'for-linus' of git://github.com/gxt/linux
Linus Torvalds [Thu, 15 Nov 2012 19:34:45 +0000 (11:34 -0800)]
Merge tag 'for-linus' of git://github.com/gxt/linux

Pull unicore32 update from Guan Xuetao.

* tag 'for-linus' of git://github.com/gxt/linux:
  arch/unicore32: remove CONFIG_EXPERIMENTAL
  unicore32: switch to generic sys_execve()
  unicore32: switch to generic kernel_thread()/kernel_execve()
  unicore32: Use Kbuild infrastructure for kvm_para.h
  UAPI: (Scripted) Disintegrate arch/unicore32/include/asm
  UniCore32-bugfix: Remove definitions in asm/bug.h to solve difference between native and cross compiler
  UniCore32-bugfix: fix mismatch return value of __xchg_bad_pointer
  UniCore32 bugfix: add missed CONFIG_ZONE_DMA
  unicore32/mm/fault.c: Port OOM changes to do_pf

11 years agoMerge tag 'upstream-3.7-rc6' of git://git.infradead.org/linux-ubifs
Linus Torvalds [Thu, 15 Nov 2012 19:28:43 +0000 (11:28 -0800)]
Merge tag 'upstream-3.7-rc6' of git://git.infradead.org/linux-ubifs

Pull UBIFS fixes from Artem Bityutskiy:
 "Two patches which fix a problem reported by several people in the
  past, but only fixed now because no one gave enough material for
  debugging.

  Anyway, these fix the problem that sometimes after a power cut the
  file-system is not mountable with the following symptom:

grab_empty_leb: could not find an empty LEB

  The fixes make the file-system mountable again."

* tag 'upstream-3.7-rc6' of git://git.infradead.org/linux-ubifs:
  UBIFS: fix mounting problems after power cuts
  UBIFS: introduce categorized lprops counter

11 years agoMerge tag 'for-v3.7-fixes' of git://git.infradead.org/users/cbou/linux-pstore
Linus Torvalds [Thu, 15 Nov 2012 19:27:53 +0000 (11:27 -0800)]
Merge tag 'for-v3.7-fixes' of git://git.infradead.org/users/cbou/linux-pstore

Pull pstore fix from Anton Vorontsov:
 "A small fixup for the persistent storage subsystem.  The bug can
  prevent kernel booting on a APEI-enabled machines w/ PSTORE_CONSOLE=y
  (this is N by default, though)."

* tag 'for-v3.7-fixes' of git://git.infradead.org/users/cbou/linux-pstore:
  pstore: Fix NULL pointer dereference in console writes

11 years agoMerge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvar...
Linus Torvalds [Thu, 15 Nov 2012 19:25:39 +0000 (11:25 -0800)]
Merge branch 'i2c-for-linus' of git://git./linux/kernel/git/jdelvare/staging

Pill i2c fixes from Jean Delvare.

Well, "fixes"..  The biggest patch here is actually Jan marking Wolfram
Sang as the main i2c subsystem maintainer, with Jan staying on as the PC
controller maintainer.

* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c-mux-pinctrl: Fix probe error path
  MAINTAINERS: i2c: 7 years, this is it

11 years agoMerge tag 'regulator-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie...
Linus Torvalds [Thu, 15 Nov 2012 19:22:03 +0000 (11:22 -0800)]
Merge tag 'regulator-3.7' of git://git./linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "A few fixes for teardown issues that will be rarely seen, plus a fix
  for a silly bug in regulator_is_supported_voltage() which shows how
  often the answer to the question should be false.

  The supported voltage commit is very new as I just edited to add a Cc
  to stable, the code itself has been in -next."

* tag 'regulator-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: fix voltage check in regulator_is_supported_voltage()
  regulator: core: Avoid deadlock when regulator_register fails
  Regulator: core: Unregister when gpio request fails.

11 years agoMerge tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Thu, 15 Nov 2012 19:21:28 +0000 (11:21 -0800)]
Merge tag 'sound-3.7' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "The only large LOC is seen in WM5102 driver, just writing a bunch of
  register updates, but the actual code change is small.  Other than
  that, all small fixes suitable for rc6."

* tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: usb-audio: Fix mutex deadlock at disconnection
  ALSA: fm801: precedence bug in snd_fm801_tea575x_get_pins()
  ALSA: es1968: precedence bug in snd_es1968_tea575x_get_pins()
  ALSA: hda - Add a missing quirk entry for iMac 9,1
  ASoC: core: Double control update err for snd_soc_put_volsw_sx
  ASoC: dapm: Use card_list during DAPM shutdown
  ASoC: cs42l52: fix the return value of cs42l52_set_fmt()
  ASoC: bells: Correct type in sub speaker DAI name for WM5102
  ASoC: wm8978: pll incorrectly configured when codec is master
  ASoC: mxs-saif: Fix channel swap for 24-bit format
  ASoC: bells: Select WM1250-EV1 Springbank audio I/O module
  ASoC: bells: Add missing select of WM0010
  ASoC: mxs-saif: Add MODULE_ALIAS
  ASoC: wm5102: Write register value corrections after SYSCLK is enabled