7 years agopci, x86/io-apic: Allow PCI_IOAPIC to be user configurable on x86
Jan Beulich [Tue, 6 Dec 2011 07:49:30 +0000]
pci, x86/io-apic: Allow PCI_IOAPIC to be user configurable on x86

This adjusts PCI_IOAPIC to be user configurable (possibly as a
module) on x86, since the base architecture code for adding
IO-APICs dynamically isn't there yet (and hence having the code
present everywhere is pretty pointless).

To make this consistent, a MODULE_DEVICE_TABLE() declaration
gets added, the class specifications get corrected (by properly
using PCI_DEVICE_CLASS() intended for purposes like this), and
the probe and remove functions get their sections adjusted.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Link: http://lkml.kernel.org/r/4EDDD71A02000078000659F1@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>

7 years agox86: Fix the !CONFIG_NUMA build of the new CPU ID fixup code support
Steffen Persvold [Tue, 6 Dec 2011 00:10:31 +0000]
x86: Fix the !CONFIG_NUMA build of the new CPU ID fixup code support

I used "ifdef CONFIG_NUMA" simply because it doesn't make
sense in a non-numa configuration even with SMP enabled.

Besides, the only place where it is called right now is
in kernel/cpu/amd.c:srat_detect_node() within the
"CONFIG_NUMA" protected part.

Signed-off-by: Steffen Persvold <sp@numascale.com>
Cc: Daniel J Blueman <daniel@numascale-asia.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Link: http://lkml.kernel.org/r/1323073238-32686-2-git-send-email-daniel@numascale-asia.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>

7 years agox86: Add NumaChip support
Steffen Persvold [Mon, 5 Dec 2011 16:07:26 +0000]
x86: Add NumaChip support

Adds support for Numascale NumaChip large-SMP systems. It is
needed to enable the booting of more than ~168 cores.

v2:
 - [Steffen] enumerate only accessible northbridges
 - [Daniel] rediffed and validated against 3.1-rc10

v3:
 - [Daniel] use x86_init core numbering override
 - [Daniel] cleanups as per feedback

v4:
 - [Daniel] use updated x86_cpuinit override

v5:
 - drop disabling interrupts locally, as ISR write is atomic; drop delay
 - added read-mostly annotations where appropriate
 - require CONFIG_SMP, so drop conditional path

Workload tested on 96 cores/16 sockets.

Signed-off-by: Steffen Persvold <sp@numascale.com>
Signed-off-by: Daniel J Blueman <daniel@numascale-asia.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Link: http://lkml.kernel.org/r/1323101246-2400-1-git-send-email-daniel@numascale-asia.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>

7 years agox86: Add x86_init platform override to fix up NUMA core numbering
Daniel J Blueman [Mon, 5 Dec 2011 08:20:37 +0000]
x86: Add x86_init platform override to fix up NUMA core numbering

Add an x86_init vector for handling inconsistent core numbering.
This is useful for multi-fabric platforms, such as Numascale
NumaConnect.

v2:
 - use struct x86_cpuinit_ops
 - provide default fall-back function to warn

Signed-off-by: Daniel J Blueman <daniel@numascale-asia.com>
Cc: Steffen Persvold <sp@numascale.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Link: http://lkml.kernel.org/r/1323073238-32686-2-git-send-email-daniel@numascale-asia.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>

7 years agox86: Make flat_init_apic_ldr() available
Daniel J Blueman [Mon, 5 Dec 2011 08:20:36 +0000]
x86: Make flat_init_apic_ldr() available

Allow flat_init_apic_ldr() to be used outside the compilation
unit for similar APIC implementations.

Signed-off-by: Daniel J Blueman <daniel@numascale-asia.com>
Cc: Steffen Persvold <sp@numascale.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Link: http://lkml.kernel.org/r/1323073238-32686-1-git-send-email-daniel@numascale-asia.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>

7 years agox86: Fix boot failures on older AMD CPU's
Linus Torvalds [Sun, 4 Dec 2011 19:57:09 +0000]
x86: Fix boot failures on older AMD CPU's

People with old AMD chips are getting hung boots, because commit
bcb80e53877c ("x86, microcode, AMD: Add microcode revision to
/proc/cpuinfo") moved the microcode detection too early into
"early_init_amd()".

At that point we are *so* early in the booth that the exception tables
haven't even been set up yet, so the whole

rdmsr_safe(MSR_AMD64_PATCH_LEVEL, &c->microcode, &dummy);

doesn't actually work: if the rdmsr does a GP fault (due to non-existant
MSR register on older CPU's), we can't fix it up yet, and the boot fails.

Fix it by simply moving the code to a slightly later point in the boot
(init_amd() instead of early_init_amd()), since the kernel itself
doesn't even really care about the microcode patchlevel at this point
(or really ever: it's made available to user space in /proc/cpuinfo, and
updated if you do a microcode load).

Reported-tested-and-bisected-by:  Larry Finger <Larry.Finger@lwfinger.net>
Tested-by: Bob Tracy <rct@gherkin.frus.com>
Acked-by: Borislav Petkov <borislav.petkov@amd.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

7 years agoxen/pm_idle: Make pm_idle be default_idle under Xen.
Konrad Rzeszutek Wilk [Mon, 21 Nov 2011 23:02:02 +0000]
xen/pm_idle: Make pm_idle be default_idle under Xen.

The idea behind commit d91ee5863b71 ("cpuidle: replace xen access to x86
pm_idle and default_idle") was to have one call - disable_cpuidle()
which would make pm_idle not be molested by other code.  It disallows
cpuidle_idle_call to be set to pm_idle (which is excellent).

But in the select_idle_routine() and idle_setup(), the pm_idle can still
be set to either: amd_e400_idle, mwait_idle or default_idle.  This
depends on some CPU flags (MWAIT) and in AMD case on the type of CPU.

In case of mwait_idle we can hit some instances where the hypervisor
(Amazon EC2 specifically) sets the MWAIT and we get:

  Brought up 2 CPUs
  invalid opcode: 0000 [#1] SMP

  Pid: 0, comm: swapper Not tainted 3.1.0-0.rc6.git0.3.fc16.x86_64 #1
  RIP: e030:[<ffffffff81015d1d>]  [<ffffffff81015d1d>] mwait_idle+0x6f/0xb4
  ...
  Call Trace:
   [<ffffffff8100e2ed>] cpu_idle+0xae/0xe8
   [<ffffffff8149ee78>] cpu_bringup_and_idle+0xe/0x10
  RIP  [<ffffffff81015d1d>] mwait_idle+0x6f/0xb4
   RSP <ffff8801d28ddf10>

In the case of amd_e400_idle we don't get so spectacular crashes, but we
do end up making an MSR which is trapped in the hypervisor, and then
follow it up with a yield hypercall.  Meaning we end up going to
hypervisor twice instead of just once.

The previous behavior before v3.0 was that pm_idle was set to
default_idle regardless of select_idle_routine/idle_setup.

We want to do that, but only for one specific case: Xen.  This patch
does that.

Fixes RH BZ #739499 and Ubuntu #881076
Reported-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

7 years agoMerge branch 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Fri, 2 Dec 2011 21:30:58 +0000]
Merge branch 'usb-linus' of git://git./linux/kernel/git/gregkh/usb

* 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (21 commits)
  usb: ftdi_sio: add PID for Propox ISPcable III
  Revert "xHCI: reset-on-resume quirk for NEC uPD720200"
  xHCI: fix bug in xhci_clear_command_ring()
  usb: gadget: fsl_udc: fix dequeuing a request in progress
  usb: fsl_mxc_udc.c: Remove compile-time dependency of MX35 SoC type
  usb: fsl_mxc_udc.c: Fix build issue by including missing header file
  USB: fsl_udc_core: use usb_endpoint_xfer_isoc to judge ISO XFER
  usb: udc: Fix gadget driver's speed check in various UDC drivers
  usb: gadget: fix g_serial regression
  usb: renesas_usbhs: fixup driver speed
  usb: renesas_usbhs: fixup gadget.dev.driver when udc_stop.
  usb: renesas_usbhs: fixup signal the driver that cable was disconnected
  usb: renesas_usbhs: fixup device_register timing
  usb: musb: PM: fix context save/restore in suspend/resume path
  USB: linux-cdc-acm.inf: add support for the acm_ms gadget
  EHCI : Fix a regression in the ISO scheduler
  xHCI: reset-on-resume quirk for NEC uPD720200
  USB: whci-hcd: fix endian conversion in qset_clear()
  USB: usb-storage: unusual_devs entry for Kingston DT 101 G2
  usb: option: add SIMCom SIM5218
  ...

7 years agoMerge branch 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Fri, 2 Dec 2011 21:30:25 +0000]
Merge branch 'staging-linus' of git://git./linux/kernel/git/gregkh/staging

* 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  Staging: comedi: fix integer overflow in do_insnlist_ioctl()
  Revert "Staging: comedi: integer overflow in do_insnlist_ioctl()"
  Staging: comedi: integer overflow in do_insnlist_ioctl()
  Staging: comedi: fix signal handling in read and write
  Staging: comedi: fix mmap_count
  staging: comedi: fix oops for USB DAQ devices.
  staging: comedi: usbduxsigma: Fixed wrong range for the analogue channel.
  staging:rts_pstor:Complete scanning_done variable
  staging: usbip: bugfix for deadlock

7 years agoMerge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
Linus Torvalds [Fri, 2 Dec 2011 18:38:20 +0000]
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs

* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: fix attr2 vs large data fork assert
  xfs: force buffer writeback before blocking on the ilock in inode reclaim
  xfs: validate acl count

7 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Linus Torvalds [Fri, 2 Dec 2011 16:25:46 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: Correct General touch PID

7 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Fri, 2 Dec 2011 16:25:04 +0000]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  vmwgfx: integer overflow in vmw_kms_update_layout_ioctl()
  drm/radeon/kms: fix 2D tiling CS support on EG/CM
  drm/radeon/kms: fix scanout of 2D tiled buffers on EG/CM
  drm: Fix lack of CRTC disable for drm_crtc_helper_set_config(.fb=NULL)
  drm/radeon/kms: add some new pci ids
  drm/radeon/kms: Skip ACPI call to ATIF when possible
  drm/radeon/kms: Hide debugging message
  drm/radeon/kms: add some loop timeouts in pageflip code
  drm/nv50/disp: silence compiler warning
  drm/nouveau: fix oopses caused by clear being called on unpopulated ttms
  drm/nouveau: Keep RAMIN heap within the channel.
  drm/nvd0/disp: fix sor dpms typo, preventing dpms on in some situations
  drm/nvc0/gr: fix TP init for transform feedback offset queries
  drm/nouveau: add dumb ioctl support

7 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Fri, 2 Dec 2011 16:10:51 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Fix S3/S4 problem on machines with VREF-pin mute-LED
  ALSA: hda_intel - revert a quirk that affect VIA chipsets
  ALSA: hda - Avoid touching mute-VREF pin for IDT codecs
  firmware: Sigma: Fix endianess issues
  firmware: Sigma: Skip header during CRC generation
  firmware: Sigma: Prevent out of bounds memory access
  ALSA: usb-audio - Support for Roland GAIA SH-01 Synthesizer
  ASoC: Supply dcs_codes for newer WM1811 revisions
  ASoC: Error out if we can't generate a LRCLK at all for WM8994
  ASoC: Correct name of Speyside Main Speaker widget
  ASoC: skip resume of soc-audio devices without codecs
  ASoC: cs42l51: Fix off-by-one for reg_cache_size
  ASoC: drop support for PlayPaq with WM8510
  ASoC: mpc8610: tell the CS4270 codec that it's the master
  ASoC: cs4720: use snd_soc_cache_sync()
  ASoC: SAMSUNG: Fix build error
  ASoC: max9877: Update register if either val or val2 is changed
  ASoC: Fix wrong define for AD1836_ADC_WORD_OFFSET

7 years agovmwgfx: integer overflow in vmw_kms_update_layout_ioctl()
Xi Wang [Mon, 28 Nov 2011 11:25:43 +0000]
vmwgfx: integer overflow in vmw_kms_update_layout_ioctl()

There are two issues in vmw_kms_update_layout_ioctl().  First, the
for loop forgets to index rects and only checks the first element.
Second, there is a potential integer overflow if userspace passes
in a large arg->num_outputs.  The call to kzalloc() would allocate
a small buffer, leading to out-of-bounds read.

Reported-by: Haogang Chen <haogangchen@gmail.com>
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

7 years agodrm/radeon/kms: fix 2D tiling CS support on EG/CM
Alex Deucher [Mon, 28 Nov 2011 19:49:28 +0000]
drm/radeon/kms: fix 2D tiling CS support on EG/CM

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=43191

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

7 years agodrm/radeon/kms: fix scanout of 2D tiled buffers on EG/CM
Alex Deucher [Mon, 28 Nov 2011 19:49:27 +0000]
drm/radeon/kms: fix scanout of 2D tiled buffers on EG/CM

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=43191

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

7 years agodrm: Fix lack of CRTC disable for drm_crtc_helper_set_config(.fb=NULL)
Chris Wilson [Mon, 28 Nov 2011 21:10:05 +0000]
drm: Fix lack of CRTC disable for drm_crtc_helper_set_config(.fb=NULL)

Disabling the CRTC by setting its framebuffer to NULL, as used by
drm_framebuffer_cleanup(), was failing to pass the current framebuffer
to the crtc_func->disable callback. This is because of the dance within
drm_crtc_helper_set_config to pass the new_fb (NULL in this case) to the
drm_crtc_helper_set_mode with the currently attached fb as a parameter.
drm_crtc_helper_set_mode treats this as a no-op and the encoder is still
enabled. And so the current fb is forgotten before the call to
drm_helper_disable_unused_functions.

This patch treats disabling the CRTC as a simple special case rather
than adding further complexity into the configuration logic.

This fixes a pin-leak of the fb bo on Xserver close.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>

7 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Fri, 2 Dec 2011 04:09:08 +0000]
Merge git://git./linux/kernel/git/davem/net

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (73 commits)
  netfilter: Remove ADVANCED dependency from NF_CONNTRACK_NETBIOS_NS
  ipv4: flush route cache after change accept_local
  sch_red: fix red_change
  Revert "udp: remove redundant variable"
  bridge: master device stuck in no-carrier state forever when in user-stp mode
  ipv4: Perform peer validation on cached route lookup.
  net/core: fix rollback handler in register_netdevice_notifier
  sch_red: fix red_calc_qavg_from_idle_time
  bonding: only use primary address for ARP
  ipv4: fix lockdep splat in rt_cache_seq_show
  sch_teql: fix lockdep splat
  net: fec: Select the FEC driver by default for i.MX SoCs
  isdn: avoid copying too long drvid
  isdn: make sure strings are null terminated
  netlabel: Fix build problems when IPv6 is not enabled
  sctp: better integer overflow check in sctp_auth_create_key()
  sctp: integer overflow in sctp_auth_create_key()
  ipv6: Set mcast_hops to IPV6_DEFAULT_MCASTHOPS when -1 was given.
  net: Fix corruption in /proc/*/net/dev_mcast
  mac80211: fix race between the AGG SM and the Tx data path
  ...

7 years agonetfilter: Remove ADVANCED dependency from NF_CONNTRACK_NETBIOS_NS
David S. Miller [Fri, 2 Dec 2011 03:19:01 +0000]
netfilter: Remove ADVANCED dependency from NF_CONNTRACK_NETBIOS_NS

firewalld in Fedora 16 needs this.

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

7 years agoipv4: flush route cache after change accept_local
Peter Pan(潘卫平) [Thu, 1 Dec 2011 15:47:06 +0000]
ipv4: flush route cache after change accept_local

After reset ipv4_devconf->data[IPV4_DEVCONF_ACCEPT_LOCAL] to 0,
we should flush route cache, or it will continue receive packets with local
source address, which should be dropped.

Signed-off-by: Weiping Pan <panweiping3@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

7 years agosch_red: fix red_change
Eric Dumazet [Thu, 1 Dec 2011 11:06:34 +0000]
sch_red: fix red_change

Le mercredi 30 novembre 2011 à 14:36 -0800, Stephen Hemminger a écrit :

> (Almost) nobody uses RED because they can't figure it out.
> According to Wikipedia, VJ says that:
>  "there are not one, but two bugs in classic RED."

RED is useful for high throughput routers, I doubt many linux machines
act as such devices.

I was considering adding Adaptative RED (Sally Floyd, Ramakrishna
Gummadi, Scott Shender), August 2001

In this version, maxp is dynamic (from 1% to 50%), and user only have to
setup min_th (target average queue size)
(max_th and wq (burst in linux RED) are automatically setup)

By the way it seems we have a small bug in red_change()

if (skb_queue_empty(&sch->q))
red_end_of_idle_period(&q->parms);

First, if queue is empty, we should call
red_start_of_idle_period(&q->parms);

Second, since we dont use anymore sch->q, but q->qdisc, the test is
meaningless.

Oh well...

[PATCH] sch_red: fix red_change()

Now RED is classful, we must check q->qdisc->q.qlen, and if queue is empty,
we start an idle period, not end it.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

7 years agoLinux 3.2-rc4
Linus Torvalds [Thu, 1 Dec 2011 22:56:01 +0000]
Linux 3.2-rc4

7 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec...
Linus Torvalds [Thu, 1 Dec 2011 22:55:34 +0000]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jlbec/ocfs2

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (31 commits)
  ocfs2: avoid unaligned access to dqc_bitmap
  ocfs2: Use filemap_write_and_wait() instead of write_inode_now()
  ocfs2: honor O_(D)SYNC flag in fallocate
  ocfs2: Add a missing journal credit in ocfs2_link_credits() -v2
  ocfs2: send correct UUID to cleancache initialization
  ocfs2: Commit transactions in error cases -v2
  ocfs2: make direntry invalid when deleting it
  fs/ocfs2/dlm/dlmlock.c: free kmem_cache_zalloc'd data using kmem_cache_free
  ocfs2: Avoid livelock in ocfs2_readpage()
  ocfs2: serialize unaligned aio
  ocfs2: Implement llseek()
  ocfs2: Fix ocfs2_page_mkwrite()
  ocfs2: Add comment about orphan scanning
  ocfs2: Clean up messages in the fs
  ocfs2/cluster: Cluster up now includes network connections too
  ocfs2/cluster: Add new function o2net_fill_node_map()
  ocfs2/cluster: Fix output in file elapsed_time_in_ms
  ocfs2/dlm: dlmlock_remote() needs to account for remastery
  ocfs2/dlm: Take inflight reference count for remotely mastered resources too
  ocfs2/dlm: Cleanup dlm_wait_for_node_death() and dlm_wait_for_node_recovery()
  ...

7 years agoocfs2: avoid unaligned access to dqc_bitmap
Akinobu Mita [Tue, 15 Nov 2011 22:56:34 +0000]
ocfs2: avoid unaligned access to dqc_bitmap

The dqc_bitmap field of struct ocfs2_local_disk_chunk is 32-bit aligned,
but not 64-bit aligned.  The dqc_bitmap is accessed by ocfs2_set_bit(),
ocfs2_clear_bit(), ocfs2_test_bit(), or ocfs2_find_next_zero_bit().  These
are wrapper macros for ext2_*_bit() which need to take an unsigned long
aligned address (though some architectures are able to handle unaligned
address correctly)

So some 64bit architectures may not be able to access the dqc_bitmap
correctly.

This avoids such unaligned access by using another wrapper functions for
ext2_*_bit().  The code is taken from fs/ext4/mballoc.c which also need to
handle unaligned bitmap access.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Joel Becker <jlbec@evilplan.org>

7 years agoMerge branch 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur...
Linus Torvalds [Thu, 1 Dec 2011 19:53:54 +0000]
Merge branch 'fixes' of ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm

* 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm:
  ARM: 7182/1: ARM cpu topology: fix warning
  ARM: 7181/1: Restrict kprobes probing SWP instructions to ARMv5 and below
  ARM: 7180/1: Change kprobes testcase with unpredictable STRD instruction
  ARM: 7177/1: GIC: avoid skipping non-existent PPIs in irq_start calculation
  ARM: 7176/1: cpu_pm: register GIC PM notifier only once
  ARM: 7175/1: add subname parameter to mfp_set_groupg callers
  ARM: 7174/1: Fix build error in kprobes test code on Thumb2 kernels
  ARM: 7172/1: dma: Drop GFP_COMP for DMA memory allocations
  ARM: 7171/1: unwind: add unwind directives to bitops assembly macros
  ARM: 7170/2: fix compilation breakage in entry-armv.S
  ARM: 7168/1: use cache type functions for arch_get_unmapped_area
  ARM: perf: check that we have a platform device when reserving PMU
  ARM: 7166/1: Use PMD_SHIFT instead of PGDIR_SHIFT in dma-consistent.c
  ARM: 7165/2: PL330: Fix typo in _prepare_ccr()
  ARM: 7163/2: PL330: Only register usable channels
  ARM: 7162/1: errata: tidy up Kconfig options for PL310 errata workarounds
  ARM: 7161/1: errata: no automatic store buffer drain
  ARM: perf: initialise used_mask for fake PMU during validation
  ARM: PMU: remove pmu_init declaration
  ARM: PMU: re-export release_pmu symbol to modules

7 years agoRevert "udp: remove redundant variable"
David S. Miller [Thu, 1 Dec 2011 19:12:55 +0000]
Revert "udp: remove redundant variable"

This reverts commit 81d54ec8479a2c695760da81f05b5a9fb2dbe40a.

If we take the "try_again" goto, due to a checksum error,
the 'len' has already been truncated.  So we won't compute
the same values as the original code did.

Reported-by: paul bilke <fsmail@conspiracy.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

7 years agoMerge branch 'for-usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sarah...
Greg Kroah-Hartman [Thu, 1 Dec 2011 19:11:43 +0000]
Merge branch 'for-usb-linus' of git://git./linux/kernel/git/sarah/xhci into usb-linus

* 'for-usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci:
  Revert "xHCI: reset-on-resume quirk for NEC uPD720200"
  xHCI: fix bug in xhci_clear_command_ring()

7 years agobridge: master device stuck in no-carrier state forever when in user-stp mode
Vitalii Demianets [Fri, 25 Nov 2011 00:16:37 +0000]
bridge: master device stuck in no-carrier state forever when in user-stp mode

When in user-stp mode, bridge master do not follow state of its slaves, so
after the following sequence of events it can stuck forever in no-carrier
state:
1) turn stp off
2) put all slaves down - master device will follow their state and also go in
no-carrier state
3) turn stp on with bridge-stp script returning 0 (go to the user-stp mode)
Now bridge master won't follow slaves' state and will never reach running
state.

This patch solves the problem by making user-stp and kernel-stp behavior
similar regarding master following slaves' states.

Signed-off-by: Vitalii Demianets <vitas@nppfactor.kiev.ua>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

7 years agousb: ftdi_sio: add PID for Propox ISPcable III
Marcin Kościelnicki [Wed, 30 Nov 2011 16:01:04 +0000]
usb: ftdi_sio: add PID for Propox ISPcable III

Signed-off-by: Marcin Kościelnicki <koriakin@0x04.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

7 years agoRevert "xHCI: reset-on-resume quirk for NEC uPD720200"
Sarah Sharp [Thu, 1 Dec 2011 18:30:16 +0000]
Revert "xHCI: reset-on-resume quirk for NEC uPD720200"

This reverts commit df711fc9962b9491af2b92bd0d21ecbfefe4e5fa.

The commit added a reset-on-resume quirk because the NEC chipset stopped
responding to commands about 30 minutes after a system resume from
suspend.  We thought it was a chipset issue, but it turns out that the
xHCI driver was zeroing out the link TRB after a successful context
restore during resume.  The host controller would fall off the command
ring sometime later, causing it to not respond to new commands.

The link TRB issue has been fixed with commit
158886cd2cf4599e04f9b7e10cb767f5f39b14f1 "xHCI: fix bug in
xhci_clear_command_ring()", so revert the reset-on-resume quirk, as it's
not necessary.

Commit df711fc9962b9491af2b92bd0d21ecbfefe4e5fa was marked for stable
trees back to 2.6.37, but according to my mail, it has not made it into
Linus' tree or the stable trees yet.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Tested-by: Julian Sikorski <belegdol@gmail.com>
Cc: Andiry Xu <andiry.xu@amd.com>

7 years agoipv4: Perform peer validation on cached route lookup.
David S. Miller [Thu, 1 Dec 2011 18:38:59 +0000]
ipv4: Perform peer validation on cached route lookup.

Otherwise we won't notice the peer GENID change.

Reported-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

7 years agoxHCI: fix bug in xhci_clear_command_ring()
Andiry Xu [Wed, 30 Nov 2011 08:37:41 +0000]
xHCI: fix bug in xhci_clear_command_ring()

When system enters suspend, xHCI driver clears command ring by writing zero
to all the TRBs. However, this also writes zero to the Link TRB, and the ring
is mangled. This may cause driver accesses wrong memory address and the
result is unpredicted.

When clear the command ring, keep the last Link TRB intact, only clear its
cycle bit. This should fix the "command ring full" issue reported by Oliver
Neukum.

This should be backported to stable kernels as old as 2.6.37, since the
commit 89821320 "xhci: Fix command ring replay after resume" is merged.

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Reported-by: Oliver Neukum <oneukum@suse.de>

7 years agodrm/radeon/kms: add some new pci ids
Alex Deucher [Thu, 1 Dec 2011 16:02:11 +0000]
drm/radeon/kms: add some new pci ids

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>

7 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux...
Linus Torvalds [Thu, 1 Dec 2011 16:28:53 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/linux-btrfs

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  Btrfs: fix meta data raid-repair merge problem
  Btrfs: skip allocation attempt from empty cluster
  Btrfs: skip block groups without enough space for a cluster
  Btrfs: start search for new cluster at the beginning
  Btrfs: reset cluster's max_size when creating bitmap
  Btrfs: initialize new bitmaps' list
  Btrfs: fix oops when calling statfs on readonly device
  Btrfs: Don't error on resizing FS to same size
  Btrfs: fix deadlock on metadata reservation when evicting a inode
  Fix URL of btrfs-progs git repository in docs
  btrfs scrub: handle -ENOMEM from init_ipath()

7 years agoMerge branch 'fix/asoc' into for-linus
Takashi Iwai [Thu, 1 Dec 2011 15:32:18 +0000]
Merge branch 'fix/asoc' into for-linus

7 years agoBtrfs: fix meta data raid-repair merge problem
Jan Schmidt [Thu, 1 Dec 2011 14:30:36 +0000]
Btrfs: fix meta data raid-repair merge problem

Commit 4a54c8c16 introduced raid-repair, killing the individual
readpage_io_failed_hook entries from inode.c and disk-io.c. Commit
4bb31e92 introduced new readahead code, adding a readpage_io_failed_hook to
disk-io.c.

The raid-repair commit had logic to disable raid-repair, if
readpage_io_failed_hook is set. Thus, the readahead commit effectively
disabled raid-repair for meta data.

This commit changes the logic to always attempt raid-repair when needed and
call the readpage_io_failed_hook in case raid-repair fails. This is much
more straight forward and should have been like that from the beginning.

Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Reported-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

7 years agoALSA: hda - Fix S3/S4 problem on machines with VREF-pin mute-LED
Charles Chin [Thu, 1 Dec 2011 10:21:00 +0000]
ALSA: hda - Fix S3/S4 problem on machines with VREF-pin mute-LED

The verb command in stac92xx_post_suspend caused the audio to stop
working after resuming from S3 mode on HP laptops with the VREF-pin
mute-LED control.  Removing relevant post_suspend registering.

Although removing D3 on AFG is no optimal solution, the impact should
be small in comparison with the broken S3/S4.

Signed-off-by: Charles Chin <Charles.Chin@idt.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

7 years agodrm/radeon/kms: Skip ACPI call to ATIF when possible
Jean Delvare [Wed, 30 Nov 2011 16:36:39 +0000]
drm/radeon/kms: Skip ACPI call to ATIF when possible

I am under the impression that it only makes sense to call the ATIF
method if the graphics device has an ACPI handle attached. So we could
skip the call altogether if there is no such handle.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

7 years agodrm/radeon/kms: Hide debugging message
Jean Delvare [Wed, 30 Nov 2011 16:26:36 +0000]
drm/radeon/kms: Hide debugging message

Use the proper macro to issue the debugging message in
radeon_atif_call(). Otherwise we spam the log of many systems with a
message which looks like an error message of unknown origin, and could
thus confuse the user. Commit dc77de12dde95c8da39e4c417eb70c7d445cf84b
was a first step in this direction, but was not sufficient IMHO.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

7 years agodrm/radeon/kms: add some loop timeouts in pageflip code
Alex Deucher [Mon, 28 Nov 2011 19:49:26 +0000]
drm/radeon/kms: add some loop timeouts in pageflip code

Avoid infinite loops waiting for surface updates if a GPU
reset happens while waiting for a page flip.

See:
https://bugs.freedesktop.org/show_bug.cgi?id=43191

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@kernel.org
Reviewed-by: Mario Kleiner <mario.kleiner@tuebingen.mpg.de>
Tested-by: Simon Farnsworth <simon.farnsworth@onelan.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>

7 years agoMerge branch 'drm-nouveau-fixes' of git://git.freedesktop.org/git/nouveau/linux-2...
Dave Airlie [Thu, 1 Dec 2011 09:01:55 +0000]
Merge branch 'drm-nouveau-fixes' of git://git.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes

* 'drm-nouveau-fixes' of git://git.freedesktop.org/git/nouveau/linux-2.6:
  drm/nv50/disp: silence compiler warning
  drm/nouveau: fix oopses caused by clear being called on unpopulated ttms
  drm/nouveau: Keep RAMIN heap within the channel.
  drm/nvd0/disp: fix sor dpms typo, preventing dpms on in some situations
  drm/nvc0/gr: fix TP init for transform feedback offset queries
  drm/nouveau: add dumb ioctl support

7 years agonet/core: fix rollback handler in register_netdevice_notifier
RongQing.Li [Thu, 1 Dec 2011 04:43:07 +0000]
net/core: fix rollback handler in register_netdevice_notifier

Within nested statements, the break statement terminates only the
do, for, switch, or while statement that immediately encloses it,
So replace the break with goto.

Signed-off-by: RongQing.Li <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

7 years agosch_red: fix red_calc_qavg_from_idle_time
Eric Dumazet [Wed, 30 Nov 2011 12:10:53 +0000]
sch_red: fix red_calc_qavg_from_idle_time

Since commit a4a710c4a7490587 (pkt_sched: Change PSCHED_SHIFT from 10 to
6) it seems RED/GRED are broken.

red_calc_qavg_from_idle_time() computes a delay in us units, but this
delay is now 16 times bigger than real delay, so the final qavg result
smaller than expected.

Use standard kernel time services since there is no need to obfuscate
them.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

7 years agobonding: only use primary address for ARP
Henrik Saavedra Persson [Wed, 23 Nov 2011 23:37:15 +0000]
bonding: only use primary address for ARP

Only use the primary address of the bond device
for master_ip. This will prevent changing the ARP source
address in Active-Backup mode whenever a secondry address
is added to the bond device.

Signed-off-by: Henrik Saavedra Persson <henrik.e.persson@ericsson.com>
Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: David S. Miller <davem@drr.davemloft.net>

7 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland...
Linus Torvalds [Thu, 1 Dec 2011 00:25:02 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/roland/infiniband

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB: Fix RCU lockdep splats
  IB/ipoib: Prevent hung task or softlockup processing multicast response
  IB/qib: Fix over-scheduling of QSFP work
  RDMA/cxgb4: Fix retry with MPAv1 logic for MPAv2
  RDMA/cxgb4: Fix iw_cxgb4 count_rcqes() logic
  IB/qib: Don't use schedule_work()

7 years agoMerge branch 'dt-for-linus' of git://sources.calxeda.com/kernel/linux
Linus Torvalds [Thu, 1 Dec 2011 00:24:43 +0000]
Merge branch 'dt-for-linus' of git://sources.calxeda.com/kernel/linux

* 'dt-for-linus' of git://sources.calxeda.com/kernel/linux:
  of: Add Silicon Image vendor prefix
  of/irq: of_irq_init: add check for parent equal to child node

7 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie...
Linus Torvalds [Thu, 1 Dec 2011 00:24:24 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/broonie/regulator

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: twl: fix twl4030 support for smps regulators
  regulator: fix use after free bug
  regulator: aat2870: Fix the logic of checking if no id is matched in aat2870_get_regulator

7 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Linus Torvalds [Thu, 1 Dec 2011 00:23:59 +0000]
Merge branch 'fixes' of git://git./linux/kernel/git/arm/arm-soc

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (45 commits)
  ARM: ux500: update defconfig
  ARM: u300: update defconfig
  ARM: at91: enable additional boards in existing soc defconfig files
  ARM: at91: refresh soc defconfig files for 3.2
  ARM: at91: rename defconfig files appropriately
  ARM: OMAP2+: Fix Compilation error when omap_l3_noc built as module
  ARM: OMAP2+: Remove empty io.h
  ARM: OMAP2: select ARM_AMBA if OMAP3_EMU is defined
  ARM: OMAP: smartreflex: fix IRQ handling bug
  ARM: OMAP: PM: only register TWL with voltage layer when device is present
  ARM: OMAP: hwmod: Fix the addr space, irq, dma count APIs
  arm: mx28: fix bit operation in clock setting
  ARM: imx: export imx_ioremap
  ARM: imx/mm-imx3: conditionally compile i.MX31 and i.MX35 code
  ARM: mx5: Fix checkpatch warnings in cpu-imx5.c
  MAINTAINERS: Add missing directory
  ARM: imx: drop 'ARCH_MX31' and 'ARCH_MX35'
  ARM: imx6q: move clock register map to machine_desc.map_io
  ARM: pxa168/gplugd: add the correct SSP device
  ARM: Update mach-types to fix mxs build breakage
  ...

7 years agoARM: 7182/1: ARM cpu topology: fix warning
Vincent Guittot [Tue, 29 Nov 2011 14:50:20 +0000]
ARM: 7182/1: ARM cpu topology: fix warning

kernel/sched.c:7354:2: warning: initialization from incompatible pointer type

Align cpu_coregroup_mask prototype interface with sched_domain_mask_f typedef
use int cpu instead of unsigned int cpu

Cc: <stable@vger.kernel.org>
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

7 years agoARM: 7181/1: Restrict kprobes probing SWP instructions to ARMv5 and below
Jon Medhurst (Tixy) [Tue, 29 Nov 2011 07:16:02 +0000]
ARM: 7181/1: Restrict kprobes probing SWP instructions to ARMv5 and below

The SWP instruction is deprecated on ARMv6 and with ARMv7 it will be
UNDEFINED when CONFIG_SWP_EMULATE is selected. In this case, probing a
SWP instruction will cause an oops when the kprobes emulation code
executes an undefined instruction.

As the SWP instruction should be rare or non-existent in kernels for
ARMv6 and later, we can simply avoid these problems by not allowing
probing of these.

Reported-by: Leif Lindholm <leif.lindholm@arm.com>
Tested-by: Leif Lindholm <leif.lindholm@arm.com>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Jon Medhurst <tixy@yxit.co.uk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

7 years agoARM: 7180/1: Change kprobes testcase with unpredictable STRD instruction
Jon Medhurst (Tixy) [Tue, 29 Nov 2011 07:14:35 +0000]
ARM: 7180/1: Change kprobes testcase with unpredictable STRD instruction

There is a kprobes testcase for the instruction "strd r2, [r3], r4".
This has unpredictable behaviour as it uses r3 for register writeback
addressing and also stores it to memory.

On a cortex A9, this testcase would fail because the instruction writes
the updated value of r3 to memory, whereas the kprobes emulation code
writes the original value.

Fix this by changing testcase to used r5 instead of r3.

Reported-by: Leif Lindholm <leif.lindholm@arm.com>
Tested-by: Leif Lindholm <leif.lindholm@arm.com>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Jon Medhurst <tixy@yxit.co.uk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

7 years agoipv4: fix lockdep splat in rt_cache_seq_show
Eric Dumazet [Tue, 29 Nov 2011 20:05:55 +0000]
ipv4: fix lockdep splat in rt_cache_seq_show

After commit f2c31e32b378 (fix NULL dereferences in check_peer_redir()),
dst_get_neighbour() should be guarded by rcu_read_lock() /
rcu_read_unlock() section.

Reported-by: Miles Lane <miles.lane@gmail.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

7 years agosch_teql: fix lockdep splat
Eric Dumazet [Wed, 30 Nov 2011 04:08:58 +0000]
sch_teql: fix lockdep splat

We need rcu_read_lock() protection before using dst_get_neighbour(), and
we must cache its value (pass it to __teql_resolve())

teql_master_xmit() is called under rcu_read_lock_bh() protection, its
not enough.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

7 years agonet: fec: Select the FEC driver by default for i.MX SoCs
Fabio Estevam [Wed, 30 Nov 2011 22:07:21 +0000]
net: fec: Select the FEC driver by default for i.MX SoCs

Since commit 230dec6 (net/fec: add imx6q enet support) the FEC driver is no
longer built by default for i.MX SoCs.

Let the FEC driver be built by default again.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Suggested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

7 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
John W. Linville [Wed, 30 Nov 2011 19:14:42 +0000]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless into for-davem

7 years agoBtrfs: skip allocation attempt from empty cluster
Alexandre Oliva [Wed, 30 Nov 2011 18:43:00 +0000]
Btrfs: skip allocation attempt from empty cluster

If we don't have a cluster, don't bother trying to allocate from it,
jumping right away to the attempt to allocate a new cluster.

Signed-off-by: Alexandre Oliva <oliva@lsd.ic.unicamp.br>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

7 years agoBtrfs: skip block groups without enough space for a cluster
Alexandre Oliva [Wed, 30 Nov 2011 18:43:00 +0000]
Btrfs: skip block groups without enough space for a cluster

We test whether a block group has enough free space to hold the
requested block, but when we're doing clustered allocation, we can
save some cycles by testing whether it has enough room for the cluster
upfront, otherwise we end up attempting to set up a cluster and
failing.  Only in the NO_EMPTY_SIZE loop do we attempt an unclustered
allocation, and by then we'll have zeroed the cluster size, so this
patch won't stop us from using the block group as a last resort.

Signed-off-by: Alexandre Oliva <oliva@lsd.ic.unicamp.br>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

7 years agoBtrfs: start search for new cluster at the beginning
Alexandre Oliva [Wed, 30 Nov 2011 18:43:00 +0000]
Btrfs: start search for new cluster at the beginning

Instead of starting at zero (offset is always zero), request a cluster
starting at search_start, that denotes the beginning of the current
block group.

Signed-off-by: Alexandre Oliva <oliva@lsd.ic.unicamp.br>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

7 years agoBtrfs: reset cluster's max_size when creating bitmap
Alexandre Oliva [Wed, 30 Nov 2011 18:43:00 +0000]
Btrfs: reset cluster's max_size when creating bitmap

The field that indicates the size of the largest contiguous chunk of
free space in the cluster is not initialized when setting up bitmaps,
it's only increased when we find a larger contiguous chunk.  We end up
retaining a larger value than appropriate for highly-fragmented
clusters, which may cause pointless searches for large contiguous
groups, and even cause clusters that do not meet the density
requirements to be set up.

Signed-off-by: Alexandre Oliva <oliva@lsd.ic.unicamp.br>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

7 years agoBtrfs: initialize new bitmaps' list
Alexandre Oliva [Mon, 28 Nov 2011 14:04:43 +0000]
Btrfs: initialize new bitmaps' list

We're failing to create clusters with bitmaps because
setup_cluster_no_bitmap checks that the list is empty before inserting
the bitmap entry in the list for setup_cluster_bitmap, but the list
field is only initialized when it is restored from the on-disk free
space cache, or when it is written out to disk.

Besides a potential race condition due to the multiple use of the list
field, filesystem performance severely degrades over time: as we use
up all non-bitmap free extents, the try-to-set-up-cluster dance is
done at every metadata block allocation.  For every block group, we
fail to set up a cluster, and after failing on them all up to twice,
we fall back to the much slower unclustered allocation.

To make matters worse, before the unclustered allocation, we try to
create new block groups until we reach the 1% threshold, which
introduces additional bitmaps and thus block groups that we'll iterate
over at each metadata block request.

7 years agoBtrfs: fix oops when calling statfs on readonly device
Li Zefan [Mon, 28 Nov 2011 08:43:00 +0000]
Btrfs: fix oops when calling statfs on readonly device

To reproduce this bug:

  # dd if=/dev/zero of=img bs=1M count=256
  # mkfs.btrfs img
  # losetup -r /dev/loop1 img
  # mount /dev/loop1 /mnt
  OOPS!!

It triggered BUG_ON(!nr_devices) in btrfs_calc_avail_data_space().

To fix this, instead of checking write-only devices, we check all open
deivces:

  # df -h /dev/loop1
  Filesystem            Size  Used Avail Use% Mounted on
  /dev/loop1            250M   28K  238M   1% /mnt

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>

7 years agoBtrfs: Don't error on resizing FS to same size
Mike Fleetwood [Fri, 18 Nov 2011 18:55:01 +0000]
Btrfs: Don't error on resizing FS to same size

It seems overly harsh to fail a resize of a btrfs file system to the
same size when a shrink or grow would succeed.  User app GParted trips
over this error.  Allow it by bypassing the shrink or grow operation.

Signed-off-by: Mike Fleetwood <mike.fleetwood@googlemail.com>

7 years agoBtrfs: fix deadlock on metadata reservation when evicting a inode
Miao Xie [Fri, 18 Nov 2011 09:43:00 +0000]
Btrfs: fix deadlock on metadata reservation when evicting a inode

When I ran the xfstests, I found the test tasks was blocked on meta-data
reservation.

By debugging, I found the reason of this bug:
   start transaction
        |
v
   reserve meta-data space
|
v
   flush delay allocation -> iput inode -> evict inode
^ |
| v
   wait for delay allocation flush <- reserve meta-data space

And besides that, the flush on evicting inode will block the thread, which
is reclaiming the memory, and make oom happen easily.

Fix this bug by skipping the flush step when evicting inode.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>

7 years agoFix URL of btrfs-progs git repository in docs
Arnd Hannemann [Wed, 16 Nov 2011 16:35:37 +0000]
Fix URL of btrfs-progs git repository in docs

The location of the btrfs-progs repository has been changed.
This patch updates the documentation accordingly.

Signed-off-by: Arnd Hannemann <arnd@arndnet.de>

7 years agobtrfs scrub: handle -ENOMEM from init_ipath()
Dan Carpenter [Wed, 16 Nov 2011 08:28:01 +0000]
btrfs scrub: handle -ENOMEM from init_ipath()

init_ipath() can return an ERR_PTR(-ENOMEM).

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

7 years agodrm/nv50/disp: silence compiler warning
Ben Skeggs [Wed, 9 Nov 2011 05:30:08 +0000]
drm/nv50/disp: silence compiler warning

NFI why this only started appearing now.  The use of the uninitialised var
can't actually happen, so perhaps my compiler just got stupider.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

7 years agodrm/nouveau: fix oopses caused by clear being called on unpopulated ttms
Ben Skeggs [Fri, 25 Nov 2011 06:35:34 +0000]
drm/nouveau: fix oopses caused by clear being called on unpopulated ttms

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

7 years agodrm/nouveau: Keep RAMIN heap within the channel.
Younes Manton [Tue, 22 Nov 2011 19:58:31 +0000]
drm/nouveau: Keep RAMIN heap within the channel.

The entire RAMIN is allocated to be 'size', but the heap is
specified as 'base' + 'size' inside RAMIN, so it will overflow
past RAMIN by 'base' bytes on NV50+ and clobber other allocatons
unless it's size is adjusted.

Signed-off-by: Younes Manton <younes.m@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

7 years agodrm/nvd0/disp: fix sor dpms typo, preventing dpms on in some situations
Ben Skeggs [Wed, 16 Nov 2011 23:10:02 +0000]
drm/nvd0/disp: fix sor dpms typo, preventing dpms on in some situations

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

7 years agodrm/nvc0/gr: fix TP init for transform feedback offset queries
Christoph Bumiller [Fri, 11 Nov 2011 19:47:58 +0000]
drm/nvc0/gr: fix TP init for transform feedback offset queries

Without this, they return bytes written since the last update of
the offset, but we want the full offset.

Trace shows setting this on GPC[0]/TP[0] is enough.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

7 years agodrm/nouveau: add dumb ioctl support
Ben Skeggs [Thu, 29 Sep 2011 22:55:50 +0000]
drm/nouveau: add dumb ioctl support

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

7 years agoMerge branches 'cxgb4', 'ipoib', 'misc' and 'qib' into for-next
Roland Dreier [Wed, 30 Nov 2011 02:01:53 +0000]
Merge branches 'cxgb4', 'ipoib', 'misc' and 'qib' into for-next

7 years agoisdn: avoid copying too long drvid
Dan Carpenter [Thu, 24 Nov 2011 02:42:09 +0000]
isdn: avoid copying too long drvid

"cfg->drvid" comes from the user so there is a possibility they
didn't NUL terminate it properly.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

7 years agoisdn: make sure strings are null terminated
Dan Carpenter [Thu, 24 Nov 2011 02:41:49 +0000]
isdn: make sure strings are null terminated

These strings come from the user.  We strcpy() them inside
cf_command() so we should check that they are NULL terminated and
return an error if not.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

7 years agoMerge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Linus Torvalds [Tue, 29 Nov 2011 22:43:22 +0000]
Merge branch 'pm-fixes' of git://git./linux/kernel/git/rafael/linux-pm

* 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM: Update comments describing device power management callbacks
  PM / Sleep: Update documentation related to system wakeup
  PM / Runtime: Make documentation follow the new behavior of irq_safe
  PM / Sleep: Correct inaccurate information in devices.txt
  PM / Domains: Document how PM domains are used by the PM core
  PM / Hibernate: Do not leak memory in error/test code paths

7 years agonetlabel: Fix build problems when IPv6 is not enabled
Paul Moore [Tue, 29 Nov 2011 10:10:54 +0000]
netlabel: Fix build problems when IPv6 is not enabled

A recent fix to the the NetLabel code caused build problem with
configurations that did not have IPv6 enabled; see below:

 netlabel_kapi.c: In function 'netlbl_cfg_unlbl_map_add':
 netlabel_kapi.c:165:4:
  error: implicit declaration of function 'netlbl_af6list_add'

This patch fixes this problem by making the IPv6 specific code conditional
on the IPv6 configuration flags as we done in the rest of NetLabel and the
network stack as a whole.  We have to move some variable declarations
around as a result so things may not be quite as pretty, but at least it
builds cleanly now.

Some additional IPv6 conditionals were added to the NetLabel code as well
for the sake of consistency.

Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

7 years agoIB: Fix RCU lockdep splats
Eric Dumazet [Tue, 29 Nov 2011 21:31:23 +0000]
IB: Fix RCU lockdep splats

Commit f2c31e32b37 ("net: fix NULL dereferences in check_peer_redir()")
forgot to take care of infiniband uses of dst neighbours.

Many thanks to Marc Aurele who provided a nice bug report and feedback.

Reported-by: Marc Aurele La France <tsi@ualberta.ca>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David Miller <davem@davemloft.net>
Cc: <stable@kernel.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>

7 years agoIB/ipoib: Prevent hung task or softlockup processing multicast response
Mike Marciniszyn [Mon, 21 Nov 2011 13:43:54 +0000]
IB/ipoib: Prevent hung task or softlockup processing multicast response

This following can occur with ipoib when processing a multicast reponse:

    BUG: soft lockup - CPU#0 stuck for 67s! [ib_mad1:982]
    Modules linked in: ...
    CPU 0:
    Modules linked in: ...
    Pid: 982, comm: ib_mad1 Not tainted 2.6.32-131.0.15.el6.x86_64 #1 ProLiant DL160 G5
    RIP: 0010:[<ffffffff814ddb27>]  [<ffffffff814ddb27>] _spin_unlock_irqrestore+0x17/0x20
    RSP: 0018:ffff8802119ed860  EFLAGS: 00000246
    0000000000000004 RBX: ffff8802119ed860 RCX: 000000000000a299
    RDX: ffff88021086c700 RSI: 0000000000000246 RDI: 0000000000000246
    RBP: ffffffff8100bc8e R08: ffff880210ac229c R09: 0000000000000000
    R10: ffff88021278aab8 R11: 0000000000000000 R12: ffff8802119ed860
    R13: ffffffff8100be6e R14: 0000000000000001 R15: 0000000000000003
    FS:  0000000000000000(0000) GS:ffff880028200000(0000) knlGS:0000000000000000
    CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
    CR2: 00000000006d4840 CR3: 0000000209aa5000 CR4: 00000000000406f0
    DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
    DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
    Call Trace:
    [<ffffffffa032c247>] ? ipoib_mcast_send+0x157/0x480 [ib_ipoib]
    [<ffffffff8100bc8e>] ? apic_timer_interrupt+0xe/0x20
    [<ffffffff8100bc8e>] ? apic_timer_interrupt+0xe/0x20
    [<ffffffffa03283d4>] ? ipoib_path_lookup+0x124/0x2d0 [ib_ipoib]
    [<ffffffffa03286fc>] ? ipoib_start_xmit+0x17c/0x430 [ib_ipoib]
    [<ffffffff8141e758>] ? dev_hard_start_xmit+0x2c8/0x3f0
    [<ffffffff81439d0a>] ? sch_direct_xmit+0x15a/0x1c0
    [<ffffffff81423098>] ? dev_queue_xmit+0x388/0x4d0
    [<ffffffffa032d6b7>] ? ipoib_mcast_join_finish+0x2c7/0x510 [ib_ipoib]
    [<ffffffffa032dab8>] ? ipoib_mcast_sendonly_join_complete+0x1b8/0x1f0 [ib_ipoib]
    [<ffffffffa02a0946>] ? mcast_work_handler+0x1a6/0x710 [ib_sa]
    [<ffffffffa015f01e>] ? ib_send_mad+0xfe/0x3c0 [ib_mad]
    [<ffffffffa00f6c93>] ? ib_get_cached_lmc+0xa3/0xb0 [ib_core]
    [<ffffffffa02a0f9b>] ? join_handler+0xeb/0x200 [ib_sa]
    [<ffffffffa029e4fc>] ? ib_sa_mcmember_rec_callback+0x5c/0xa0 [ib_sa]
    [<ffffffffa029e79c>] ? recv_handler+0x3c/0x70 [ib_sa]
    [<ffffffffa01603a4>] ? ib_mad_completion_handler+0x844/0x9d0 [ib_mad]
    [<ffffffffa015fb60>] ? ib_mad_completion_handler+0x0/0x9d0 [ib_mad]
    [<ffffffff81088830>] ? worker_thread+0x170/0x2a0
    [<ffffffff8108e160>] ? autoremove_wake_function+0x0/0x40
    [<ffffffff810886c0>] ? worker_thread+0x0/0x2a0
    [<ffffffff8108ddf6>] ? kthread+0x96/0xa0
    [<ffffffff8100c1ca>] ? child_rip+0xa/0x20

Coinciding with stack trace is the following message:

    ib0: ib_address_create failed

The code below in ipoib_mcast_join_finish() will note the above
failure in the address handle but otherwise continue:

                ah = ipoib_create_ah(dev, priv->pd, &av);
                if (!ah) {
                        ipoib_warn(priv, "ib_address_create failed\n");
                } else {

The while loop at the bottom of ipoib_mcast_join_finish() will attempt
to send queued multicast packets in mcast->pkt_queue and eventually
end up in ipoib_mcast_send():

        if (!mcast->ah) {
                if (skb_queue_len(&mcast->pkt_queue) < IPOIB_MAX_MCAST_QUEUE)
                        skb_queue_tail(&mcast->pkt_queue, skb);
                else {
                        ++dev->stats.tx_dropped;
                        dev_kfree_skb_any(skb);
                }

My read is that the code will requeue the packet and return to the
ipoib_mcast_join_finish() while loop and the stage is set for the
"hung" task diagnostic as the while loop never sees a non-NULL ah, and
will do nothing to resolve.

There are GFP_ATOMIC allocates in the provider routines, so this is
possible and should be dealt with.

The test that induced the failure is associated with a host SM on the
same server during a shutdown.

This patch causes ipoib_mcast_join_finish() to exit with an error
which will flush the queued mcast packets.  Nothing is done to unwind
the QP attached state so that subsequent sends from above will retry
the join.

Reviewed-by: Ram Vepa <ram.vepa@qlogic.com>
Reviewed-by: Gary Leshner <gary.leshner@qlogic.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

7 years agosctp: better integer overflow check in sctp_auth_create_key()
Xi Wang [Tue, 29 Nov 2011 09:26:30 +0000]
sctp: better integer overflow check in sctp_auth_create_key()

The check from commit 30c2235c is incomplete and cannot prevent
cases like key_len = 0x80000000 (INT_MAX + 1).  In that case, the
left-hand side of the check (INT_MAX - key_len), which is unsigned,
becomes 0xffffffff (UINT_MAX) and bypasses the check.

However this shouldn't be a security issue.  The function is called
from the following two code paths:

 1) setsockopt()

 2) sctp_auth_asoc_set_secret()

In case (1), sca_keylength is never going to exceed 65535 since it's
bounded by a u16 from the user API.  As such, the key length will
never overflow.

In case (2), sca_keylength is computed based on the user key (1 short)
and 2 * key_vector (3 shorts) for a total of 7 * USHRT_MAX, which still
will not overflow.

In other words, this overflow check is not really necessary.  Just
make it more correct.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Cc: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

7 years agoMerge branch 'slab/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg...
Linus Torvalds [Tue, 29 Nov 2011 19:13:22 +0000]
Merge branch 'slab/urgent' of git://git./linux/kernel/git/penberg/linux

* 'slab/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux:
  slub: avoid potential NULL dereference or corruption
  slub: use irqsafe_cpu_cmpxchg for put_cpu_partial
  slub: move discard_slab out of node lock
  slub: use correct parameter to add a page to partial list tail

7 years agoxfs: fix attr2 vs large data fork assert
Christoph Hellwig [Sat, 19 Nov 2011 17:44:30 +0000]
xfs: fix attr2 vs large data fork assert

With Dmitry fsstress updates I've seen very reproducible crashes in
xfs_attr_shortform_remove because xfs_attr_shortform_bytesfit claims that
the attributes would not fit inline into the inode after removing an
attribute.  It turns out that we were operating on an inode with lots
of delalloc extents, and thus an if_bytes values for the data fork that
is larger than biggest possible on-disk storage for it which utterly
confuses the code near the end of xfs_attr_shortform_bytesfit.

Fix this by always allowing the current attribute fork, like we already
do for the attr1 format, given that delalloc conversion will take care
for moving either the data or attribute area out of line if it doesn't
fit at that point - or making the point moot by merging extents at this
point.

Also document the function better, and clean up some loose bits.

Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>

7 years agoxfs: force buffer writeback before blocking on the ilock in inode reclaim
Christoph Hellwig [Tue, 29 Nov 2011 18:06:14 +0000]
xfs: force buffer writeback before blocking on the ilock in inode reclaim

If we are doing synchronous inode reclaim we block the VM from making
progress in memory reclaim.  So if we encouter a flush locked inode
promote it in the delwri list and wake up xfsbufd to write it out now.
Without this we can get hangs of up to 30 seconds during workloads hitting
synchronous inode reclaim.

The scheme is copied from what we do for dquot reclaims.

Reported-by: Simon Kirby <sim@hostway.ca>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Simon Kirby <sim@hostway.ca>
Signed-off-by: Ben Myers <bpm@sgi.com>

7 years agoMerge branch 'dev' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Linus Torvalds [Tue, 29 Nov 2011 16:59:12 +0000]
Merge branch 'dev' of git://git./linux/kernel/git/tytso/ext4

* 'dev' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix racy use-after-free in ext4_end_io_dio()

7 years agoMerge branch 'defconfigs-for-arnd' of git://git.linaro.org/people/triad/linux-sterics...
Arnd Bergmann [Tue, 29 Nov 2011 14:50:17 +0000]
Merge branch 'defconfigs-for-arnd' of git://git.linaro.org/people/triad/linux-stericsson into fixes

7 years agoof: Add Silicon Image vendor prefix
Pawel Moll [Tue, 8 Nov 2011 11:35:20 +0000]
of: Add Silicon Image vendor prefix

"sil" is the most commonly used abbreviation for Silicon
Image products.

Signed-off-by: Pawel Moll <pawel.moll@arm.com>

7 years agoof/irq: of_irq_init: add check for parent equal to child node
Rob Herring [Mon, 28 Nov 2011 02:16:33 +0000]
of/irq: of_irq_init: add check for parent equal to child node

With the revert of "of/irq: of_irq_find_parent: check for parent equal to
child" (dc9372808412edb), we need another way to handle parent node equal
to the child node. This can simply be handled in of_irq_init by checking
for this condition.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Tested-by: Pawel Moll <pawel.moll@arm.com>
Tested-by: Stephen Warren <swarren@nvidia.com>

7 years agousb: gadget: fsl_udc: fix dequeuing a request in progress
Li Yang [Wed, 23 Nov 2011 12:12:56 +0000]
usb: gadget: fsl_udc: fix dequeuing a request in progress

The original implementation of dequeuing a request in progress
is not correct.  Change to use a correct process and also clean
up the related functions a little bit.

Signed-off-by: Li Yang <leoli@freescale.com>
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

7 years agousb: fsl_mxc_udc.c: Remove compile-time dependency of MX35 SoC type
Fabio Estevam [Tue, 22 Nov 2011 15:48:29 +0000]
usb: fsl_mxc_udc.c: Remove compile-time dependency of MX35 SoC type

In order to support multiple SoC kernel image, compile-time dependency
on a specific SoC type should be avoided.

fsl_udc_clk_finalize is already protected by cpu_is_mx35(), so remove
the compile-time check for CONFIG_SOC_IMX35.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

7 years agousb: fsl_mxc_udc.c: Fix build issue by including missing header file
Fabio Estevam [Tue, 22 Nov 2011 15:48:28 +0000]
usb: fsl_mxc_udc.c: Fix build issue by including missing header file

Fix the following build error:

CC [M] drivers/usb/gadget/fsl_mxc_udc.o
drivers/usb/gadget/fsl_mxc_udc.c: In function 'fsl_udc_clk_finalize':
drivers/usb/gadget/fsl_mxc_udc.c:98: error: implicit declaration of function 'readl'
drivers/usb/gadget/fsl_mxc_udc.c:100: error: implicit declaration of function 'writel'

This error is caused by the follwing commit:
(16fcb63: arm/imx: remove mx31_setup_weimcs( ) from mx31.h)

,which removed '#include <linux/io.h>' from mx31.h.

fsl_mxc_udc.c includes <mach/hardware.h>, which in turns includes mx31.h, so
that's the reason fsl_mxc_udc.c built fine previously.

Instead of relying on the indirect inclusion of the linux/io.h header file,
include it directly in fsl_mxc_udc.c.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

7 years agoUSB: fsl_udc_core: use usb_endpoint_xfer_isoc to judge ISO XFER
Peter Chen [Tue, 22 Nov 2011 01:55:45 +0000]
USB: fsl_udc_core: use usb_endpoint_xfer_isoc to judge ISO XFER

Some ISO gadgets, like audio, has SYNC attribute as well as
USB_ENDPOINT_XFER_ISOC for their bmAttributes at ISO endpoint
descriptor. So, it needs to use usb_endpoint_xfer_isoc to judge
ISO XFER.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Acked-by: Li Yang <leoli@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

7 years agousb: udc: Fix gadget driver's speed check in various UDC drivers
Michal Nazarewicz [Sat, 19 Nov 2011 17:26:25 +0000]
usb: udc: Fix gadget driver's speed check in various UDC drivers

Several UDC drivers had a gadget driver's speed sanity check of the
form of:

driver->speed != USB_SPEED_HIGH

or:

driver->speed != USB_SPEED_HIGH && driver->speed != USB_SPEED_FULL

As more and more gadget drivers support USB SuperSpeed, driver->speed
may be set to USB_SPEED_SUPER and UDC driver should handle such gadget
correctly.  The above checks however fail to recognise USB_SPEED_SUPER
as a valid speed.

This commit changes the two checks to:

driver->speed < USB_SPEED_HIGH

or:

driver->speed < USB_SPEED_FULL

respectively.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Reported-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

7 years agousb: gadget: fix g_serial regression
Robert Jarzmik [Fri, 18 Nov 2011 19:16:27 +0000]
usb: gadget: fix g_serial regression

Commit "usb: gadget: use config_ep_by_speed() instead of
ep_choose()" broke g_serial in "non ACM nor OBEX"
mode. Apply a trivial fix on usb endpoints discovery.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

7 years agousb: renesas_usbhs: fixup driver speed
Kuninori Morimoto [Fri, 18 Nov 2011 02:20:44 +0000]
usb: renesas_usbhs: fixup driver speed

This patch cares latest USB_SPEED_SUPER support.
renesas_usbhs can not use super-speed, but can use full/high speed.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

7 years agousb: renesas_usbhs: fixup gadget.dev.driver when udc_stop.
Kuninori Morimoto [Fri, 18 Nov 2011 02:19:56 +0000]
usb: renesas_usbhs: fixup gadget.dev.driver when udc_stop.

current renesas_usbhs is using new style udc_start/stop from
af1d7056a5c1e5eaaf807ddd1423101db84668d0
(usb: gadget: renesas: convert to new style).

But current renesas_usbhs driver didn't care about gadget.dev.driver
when udc_stop. it cause rmmod oops.
This patch care it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

7 years agousb: renesas_usbhs: fixup signal the driver that cable was disconnected
Kuninori Morimoto [Fri, 18 Nov 2011 02:19:38 +0000]
usb: renesas_usbhs: fixup signal the driver that cable was disconnected

current renesas_usbhs is using new style udc_start/stop from
af1d7056a5c1e5eaaf807ddd1423101db84668d0
(usb: gadget: renesas: convert to new style).

cable disconnected signal was needed.
This patch fixup it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

7 years agousb: renesas_usbhs: fixup device_register timing
Kuninori Morimoto [Fri, 18 Nov 2011 02:19:06 +0000]
usb: renesas_usbhs: fixup device_register timing

current renesas_usbhs is using new style udc_start/stop from
af1d7056a5c1e5eaaf807ddd1423101db84668d0
(usb: gadget: renesas: convert to new style).

But bind() function will fail if it was called before
device_register() (or device_add()).
This patch modifies this issue.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

7 years agousb: musb: PM: fix context save/restore in suspend/resume path
Kevin Hilman [Wed, 23 Nov 2011 01:18:24 +0000]
usb: musb: PM: fix context save/restore in suspend/resume path

Currently the driver tries to save context in the suspend path, but
will cause an abort if the device is already runtime suspended.  This
happens, for example, if MUSB loaded/compiled-in, in host mode, but no
USB devices are attached.  MUSB will be runtime suspended, but then
attempting a system suspend will crash due to the context save
being attempted while the device is disabled.

On OMAP, as of v3.1, the driver's ->runtime_suspend() callback will be
called late in the suspend path (by the PM domain layer) if the driver
is not already runtime suspended, ensuring a full shutdown.

Therefore, the context save is not needed in the ->suspend() method
since it will be called in the ->runtime_suspend() method anyways
(similarily for resume.)

NOTE: this leaves the suspend/resume methods basically empty (with
      some FIXMEs and comments, but I'll leave it to the maintainers
      to decide whether to remove them.

Cc: stable@vger.kernel.org
Signed-off-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

7 years agoALSA: hda_intel - revert a quirk that affect VIA chipsets
Marc Vertes [Tue, 29 Nov 2011 11:21:17 +0000]
ALSA: hda_intel - revert a quirk that affect VIA chipsets

This quirk sould be reverted. It has the following probems:

1) The quirk was intended to "ASUS MV2-MX SE" motherboards only, but the
ID used matches a much broader range, potentially all boards containing a
VIA chipset model in the family of vendor VIA 0x1106 and audio device ID
0x3288, which encompasses VIA-VT82xx, VIA-VT1xx and VIA-VT20xx chipsets.

2) VIA chipsets rely on azx_via_get_position() to handle correctly dma
transfers during capture. Using POS_FIX_LPIB instead of POS_FIX_VIACOMBO
leads to partially corrupted input buffers during capture. The effects
of this bug are not immediately visible, it took strong DSP expertise,
some expensive signal generator and a spectrum analyzer to identify it
and verify correct behaviour using original default.

3) It's almost certain that the quirk did not fix the real problem,
if there was one. Refer to original submission:
http://mailman.alsa-project.org/pipermail/alsa-devel/2010-February/025109.html

Signed-of-by: Marc Vertes <mvertes@sigfox.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

7 years agoALSA: hda - Avoid touching mute-VREF pin for IDT codecs
Takashi Iwai [Tue, 29 Nov 2011 12:01:30 +0000]
ALSA: hda - Avoid touching mute-VREF pin for IDT codecs

Some HP laptops use a pin VREF for controlling the mute LED, and such a
pin shouldn't be powered off.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

7 years agofirmware: Sigma: Fix endianess issues
Lars-Peter Clausen [Mon, 28 Nov 2011 08:44:16 +0000]
firmware: Sigma: Fix endianess issues

Currently the SigmaDSP firmware loader only works correctly on little-endian
systems. Fix this by using the proper endianess conversion functions.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org