507504 Commits

Author SHA1 Message Date
Jeff Layton
f9c72d10d6 sunrpc: make debugfs file creation failure non-fatal
We currently have a problem that SELinux policy is being enforced when
creating debugfs files. If a debugfs file is created as a side effect of
doing some syscall, then that creation can fail if the SELinux policy
for that process prevents it.

This seems wrong. We don't do that for files under /proc, for instance,
so Bruce has proposed a patch to fix that.

While discussing that patch however, Greg K.H. stated:

    "No kernel code should care / fail if a debugfs function fails, so
     please fix up the sunrpc code first."

This patch converts all of the sunrpc debugfs setup code to be void
return functins, and the callers to not look for errors from those
functions.

This should allow rpc_clnt and rpc_xprt creation to work, even if the
kernel fails to create debugfs files for some reason.

Symptoms were failing krb5 mounts on systems using gss-proxy and
selinux.

Fixes: 388f0c776781 "sunrpc: add a debugfs rpc_xprt directory..."
Cc: stable@vger.kernel.org
Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-03-31 14:15:08 -04:00
Jiri Benc
5899f04785 netlink: pad nla_memcpy dest buffer with zeroes
This is especially important in cases where the kernel allocs a new
structure and expects a field to be set from a netlink attribute. If such
attribute is shorter than expected, the rest of the field is left containing
previous data. When such field is read back by the user space, kernel memory
content is leaked.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-31 14:07:24 -04:00
Anton Nayshtut
f5e2dc5d7f bonding: Bonding Overriding Configuration logic restored.
Before commit 3900f29021f0bc7fe9815aa32f1a993b7dfdd402 ("bonding: slight
optimizztion for bond_slave_override()") the override logic was to send packets
with non-zero queue_id through the slave with corresponding queue_id, under two
conditions only - if the slave can transmit and it's up.

The above mentioned commit changed this logic by introducing an additional
condition - whether the bond is active (indirectly, using the slave_can_tx and
later - bond_is_active_slave), that prevents the user from implementing more
complex policies according to the Documentation/networking/bonding.txt.

Signed-off-by: Anton Nayshtut <anton@swortex.com>
Signed-off-by: Alexey Bogoslavsky <alexey@swortex.com>
Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-31 13:49:45 -04:00
David S. Miller
d91e9015c7 Merge branch 'ipvlan-corruptions'
Jiri Benc says:

====================
ipvlan: list corruption and rcu fixes

This patch set fixes different issues leading to corrupted lists and
incorrect rcu usage.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-31 13:28:38 -04:00
Jiri Benc
e9997c2938 ipvlan: fix check for IP addresses in control path
When an ipvlan interface is down, its addresses are not on the hash list.
Fix checks for existence of addresses not to depend on the hash list, walk
through all interface addresses instead.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-31 13:28:33 -04:00
Jiri Benc
40891e8ad6 ipvlan: do not use rcu operations for address list
All accesses to ipvlan->addrs are under rtnl.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-31 13:28:33 -04:00
Jiri Benc
2afa650ce2 ipvlan: protect against concurrent link removal
Adding and removing to the 'ipvlans' list is already done using _rcu list
operations.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-31 13:28:33 -04:00
Jiri Benc
27705f7085 ipvlan: fix addr hash list corruption
When ipvlan interface with IP addresses attached is brought down and then
deleted, the assigned addresses are deleted twice from the address hash
list, first on the interface down and second on the link deletion.
Similarly, when an address is added while the interface is down, it is added
second time once the interface is brought up.

When the interface is down, the addresses should be kept off the hash list
for performance reasons. Ensure this is true, which also fixes the double add
problem. To fix the double free, check whether the address is hashed before
removing it.

Reported-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-31 13:28:33 -04:00
Michael Ellerman
44164c4ba9 ftracetest: Convert exit -1 to exit $FAIL
POSIX says that exit takes an unsigned integer between 0 and 255, so
using -1 doesn't work on POSIX shells.

There is already a well-defined failure code, $FAIL (1), so use that.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-03-31 10:15:46 -06:00
Michael Ellerman
a05ffdce71 ftracetest: Cope properly with stack tracer not being enabled
If the stack tracer (CONFIG_STACK_TRACER) is disabled, the
fgraph-filter-stack test blows chunks:

  [8] ftrace - function graph filters with stack tracer	[FAIL]
  + reset_tracer
  + echo nop
  ./ftracetest: 19: /home/michael/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc:
  	cannot create /proc/sys/kernel/stack_tracer_enabled: Directory nonexistent

Fix it by checking if the proc file exists before echoing to it. With
the patch applied it fails correctly with:

  [8] ftrace - function graph filters with stack tracer	[UNSUPPORTED]

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
2015-03-31 10:15:36 -06:00
Joe Perches
1d804d079a x86: Use bool function return values of true/false not 1/0
Use the normal return values for bool functions

Signed-off-by: Joe Perches <joe@perches.com>
Message-Id: <9f593eb2f43b456851cd73f7ed09654ca58fb570.1427759009.git.joe@perches.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-31 18:05:09 +02:00
Mike Snitzer
e9637415a9 block: fix blk_stack_limits() regression due to lcm() change
Linux 3.19 commit 69c953c ("lib/lcm.c: lcm(n,0)=lcm(0,n) is 0, not n")
caused blk_stack_limits() to not properly stack queue_limits for stacked
devices (e.g. DM).

Fix this regression by establishing lcm_not_zero() and switching
blk_stack_limits() over to using it.

DM uses blk_set_stacking_limits() to establish the initial top-level
queue_limits that are then built up based on underlying devices' limits
using blk_stack_limits().  In the case of optimal_io_size (io_opt)
blk_set_stacking_limits() establishes a default value of 0.  With commit
69c953c, lcm(0, n) is no longer n, which compromises proper stacking of
the underlying devices' io_opt.

Test:
$ modprobe scsi_debug dev_size_mb=10 num_tgts=1 opt_blks=1536
$ cat /sys/block/sde/queue/optimal_io_size
786432
$ dmsetup create node --table "0 100 linear /dev/sde 0"

Before this fix:
$ cat /sys/block/dm-5/queue/optimal_io_size
0

After this fix:
$ cat /sys/block/dm-5/queue/optimal_io_size
786432

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org # 3.19+
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-03-31 09:45:50 -06:00
Christian Borntraeger
a3ed8dae6e KVM: s390: enable more features that need no hypervisor changes
After some review about what these facilities do, the following
facilities will work under KVM and can, therefore, be reported
to the guest if the cpu model and the host cpu provide this bit.

There are plans underway to make the whole bit thing more readable,
but its not yet finished. So here are some last bit changes and
we enhance the KVM mask with:

9 The sense-running-status facility is installed in the
  z/Architecture architectural mode.
  ---> handled by SIE or KVM

10 The conditional-SSKE facility is installed in the
   z/Architecture architectural mode.
  ---> handled by SIE. KVM will retry SIE

13 The IPTE-range facility is installed in the
   z/Architecture architectural mode.
  ---> handled by SIE. KVM will retry SIE

36 The enhanced-monitor facility is installed in the
   z/Architecture architectural mode.
  ---> handled by SIE

47 The CMPSC-enhancement facility is installed in the
   z/Architecture architectural mode.
  ---> handled by SIE

48 The decimal-floating-point zoned-conversion facility
   is installed in the z/Architecture architectural mode.
  ---> handled by SIE

49 The execution-hint, load-and-trap, miscellaneous-
   instruction-extensions and processor-assist
  ---> handled by SIE

51 The local-TLB-clearing facility is installed in the
   z/Architecture architectural mode.
  ---> handled by SIE

52 The interlocked-access facility 2 is installed.
  ---> handled by SIE

53 The load/store-on-condition facility 2 and load-and-
   zero-rightmost-byte facility are installed in the
   z/Architecture architectural mode.
  ---> handled by SIE

57 The message-security-assist-extension-5 facility is
  installed in the z/Architecture architectural mode.
  ---> handled by SIE

66 The reset-reference-bits-multiple facility is installed
  in the z/Architecture architectural mode.
  ---> handled by SIE. KVM will retry SIE

80 The decimal-floating-point packed-conversion
   facility is installed in the z/Architecture architectural
   mode.
  ---> handled by SIE

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Tested-by: Michael Mueller <mimu@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-03-31 13:49:08 +02:00
David Hildenbrand
2ba4596852 KVM: s390: store the breaking-event address on pgm interrupts
If the PER-3 facility is installed, the breaking-event address is to be
stored in the low core.

There is no facility bit for PER-3 in stfl(e) and Linux always uses the
value at address 272 no matter if PER-3 is available or not.
We can't hide its existence from the guest. All program interrupts
injected via the SIE automatically store this information if the PER-3
facility is available in the hypervisor. Also the itdb contains the
address automatically.

As there is no switch to turn this mechanism off, let's simply make it
consistent and also store the breaking event address in case of manual
program interrupt injection.

Reviewed-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-03-31 13:49:08 +02:00
Ingo Molnar
36cbf25dc7 * Fix integer overflow issue in the DMI SMBIOS 3.0 code when
calculating the number of DMI table entries - Jean Delvare
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Merge tag 'efi-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi into x86/urgent

Pull EFI fix from Matt Fleming:

  - Fix integer overflow issue in the DMI SMBIOS 3.0 code when
    calculating the number of DMI table entries. (Jean Delvare)

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-03-31 10:45:47 +02:00
Borislav Petkov
ca68a525ff MAINTAINERS: Change the x86 microcode loader maintainer
Let's make it official - I've been doing this for a while now anyway.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andreas Herrmann <herrmann.der.user@googlemail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-03-31 10:04:52 +02:00
James Bottomley
11e52a699a enclosure: fix WARN_ON removing an adapter in multi-path devices
We have peculiar problems with multi-path and enclosures: physically, we know
each bay can only be occupied by a single disk device.  However in multi-path,
it appears we have many (because each path to the device appears in Linux as a
different kernel device).  We try to fix this by only having the last seen
device show up in the bay.

Sysfs gets very annoyed if we try to manipulate links when the kobject sysfs
directory (kobj.sd) doesn't exist and drops a huge WARN_ON which most users
panic and report an oops for.  This happens on a few path removal situations
and IBM reports seeing it when one of their multi-path adapters is removed.

Add a check to enclosure device removal for the existence the sysfs directory
containing both the forward and back links so that the remnants (if any) get
removed in either direction but no scary warnings are dumped.

Reported-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Tested-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2015-03-31 08:53:36 +03:00
Linus Torvalds
6c310bc1ac File locking related fix for v4.0 (#5)
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Merge tag 'locks-v4.0-5' of git://git.samba.org/jlayton/linux

Pull file locking fix from Jeff Layton:
 "Another small fix for the lease overhaul"

* tag 'locks-v4.0-5' of git://git.samba.org/jlayton/linux:
  locks: fix file_lock deletion inside loop
2015-03-30 15:13:04 -07:00
Christoph Hellwig
f3f03330de nfsd: require an explicit option to enable pNFS
Turns out sending out layouts to any client is a bad idea if they
can't get at the storage device, so require explicit admin action
to enable pNFS.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-03-30 16:05:26 -04:00
Linus Torvalds
32374ea8fe Merge branch 'for-4.0-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata fixes from Tejun Heo:
 "Nothing exciting.  Two patches to update queued trim blacklist"

* 'for-4.0-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  libata: Blacklist queued TRIM on Samsung SSD 850 Pro
  libata: Update Crucial/Micron blacklist
2015-03-30 11:08:37 -07:00
Peter Ujfalusi
fbef403aa7 dmaengine: moxart-dma: Fix memory leak when stopping a running transfer
The vd->node is removed from the lists when the transfer started so the
vchan_get_all_descriptors() will not find it. This results memory leak.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-03-30 23:17:08 +05:30
Peter Ujfalusi
f931782917 dmaengine: bcm2835-dma: Fix memory leak when stopping a running transfer
The vd->node is removed from the lists when the transfer started so the
vchan_get_all_descriptors() will not find it. This results memory leak.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-03-30 23:17:08 +05:30
Peter Ujfalusi
02d88b735f dmaengine: omap-dma: Fix memory leak when terminating running transfer
In omap_dma_start_desc the vdesc->node is removed from the virt-dma
framework managed lists (to be precise from the desc_issued list).
If a terminate_all comes before the transfer finishes the omap_desc will
not be freed up because it is not in any of the lists and we stopped the
DMA channel so the transfer will not going to complete.
There is no special sequence for leaking memory when using cyclic (audio)
transfer: with every start and stop of a cyclic transfer the driver leaks
struct omap_desc worth of memory.

Free up the allocated memory directly in omap_dma_terminate_all() since the
framework will not going to do that for us.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
CC: <stable@vger.kernel.org>
CC: <linux-omap@vger.kernel.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-03-30 23:17:08 +05:30
Petr Kulhavy
5ca9e7ce6e dmaengine: edma: fix memory leak when terminating running transfers
If edma_terminate_all() was called while a transfer was running (i.e. after
edma_execute() but before edma_callback()) the echan->edesc was not freed.

This was due to the fact that a running transfer is on none of the
vchan lists: desc_submitted, desc_issued, desc_completed (edma_execute()
removes it from the desc_issued list), so the vchan_dma_desc_free_list()
called at the end of edma_terminate_all() didn't find it and didn't free it.

This bug was found on an AM1808 based hardware (very similar to da850evm,
however using the second MMC/SD controller), where intense operations on the SD
card wasted the device 128MB RAM within a couple of days.

Peter Ujfalusi:
The issue is even more severe since it affects cyclic (audio) transfers as
well. In this case starting/stopping audio will results memory leak.

Signed-off-by: Petr Kulhavy <petr@barix.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
CC: <stable@vger.kernel.org>
CC: <linux-omap@vger.kernel.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-03-30 23:17:08 +05:30
Lars-Peter Clausen
ca76683930 dmaengine: jz4740: Define capabilities
Setup the capabilities of the device/driver, so that users of the DMAengine API
can query them.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-03-30 23:00:23 +05:30
Linus Torvalds
29059af3f2 Late GPIO fixes:
- Syscon GPIO fix for Keystone DSP GPIOs
 - Pin number translation fix for ACPI GPIO
 - A smallish compiler warning fix on the mpc8xxx driver
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Merge tag 'gpio-v4.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull late GPIO fixes from Linus Walleij:
 "Here are the (hopefully) last GPIO fixes for v4.0.  Nothing
  controversial whatsoever, just fixes:

   - syscon GPIO fix for Keystone DSP GPIOs

   - pin number translation fix for ACPI GPIO

   - a smallish compiler warning fix on the mpc8xxx driver"

* tag 'gpio-v4.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: syscon: reduce message level when direction reg offset not in dt
  gpiolib: translate pin number in GPIO ACPI callbacks
  gpio: mpc8xxx: remove __initdata annotation for mpc8xxx_gpio_ids[]
2015-03-30 09:14:41 -07:00
Nikolay Nikolaev
d44758c0df KVM: arm/arm64: enable KVM_CAP_IOEVENTFD
As the infrastructure for eventfd has now been merged, report the
ioeventfd capability as being supported.

Signed-off-by: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
[maz: grouped the case entry with the others, fixed commit log]
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-03-30 17:07:24 +01:00
Andre Przywara
950324ab81 KVM: arm/arm64: rework MMIO abort handling to use KVM MMIO bus
Currently we have struct kvm_exit_mmio for encapsulating MMIO abort
data to be passed on from syndrome decoding all the way down to the
VGIC register handlers. Now as we switch the MMIO handling to be
routed through the KVM MMIO bus, it does not make sense anymore to
use that structure already from the beginning. So we keep the data in
local variables until we put them into the kvm_io_bus framework.
Then we fill kvm_exit_mmio in the VGIC only, making it a VGIC private
structure. On that way we replace the data buffer in that structure
with a pointer pointing to a single location in a local variable, so
we get rid of some copying on the way.
With all of the virtual GIC emulation code now being registered with
the kvm_io_bus, we can remove all of the old MMIO handling code and
its dispatching functionality.

I didn't bother to rename kvm_exit_mmio (to vgic_mmio or something),
because that touches a lot of code lines without any good reason.

This is based on an original patch by Nikolay.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Cc: Nikolay Nikolaev <n.nikolaev@virtualopensystems.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-03-30 17:07:19 +01:00
Andre Przywara
fb8f61abab KVM: arm/arm64: prepare GICv3 emulation to use kvm_io_bus MMIO handling
Using the framework provided by the recent vgic.c changes, we
register a kvm_io_bus device on mapping the virtual GICv3 resources.
The distributor mapping is pretty straight forward, but the
redistributors need some more love, since they need to be tagged with
the respective redistributor (read: VCPU) they are connected with.
We use the kvm_io_bus framework to register one devices per VCPU.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-03-30 17:07:13 +01:00
Andre Przywara
0ba10d5392 KVM: arm/arm64: merge GICv3 RD_base and SGI_base register frames
Currently we handle the redistributor registers in two separate MMIO
regions, one for the overall behaviour and SPIs and one for the
SGIs/PPIs. That latter forces the creation of _two_ KVM I/O bus
devices for each redistributor.
Since the spec mandates those two pages to be contigious, we could as
well merge them and save the churn with the second KVM I/O bus device.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-03-30 17:07:08 +01:00
Chris Wilson
ee73c61c0a drm/i915: Skip allocating shadow batch for 0-length batches
Since

commit 17cabf571e50677d980e9ab2a43c5f11213003ae
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Wed Jan 14 11:20:57 2015 +0000

    drm/i915: Trim the command parser allocations

we may then try to allocate a zero-sized object and attempt to extract
its pages. Understandably this fails.

Note that the real offender seems to be

commit b9ffd80ed659c559152c042e74741f4f60cac691
Author: Brad Volkin <bradley.d.volkin@intel.com>
Date:   Thu Dec 11 12:13:10 2014 -0800

    drm/i915: Use batch length instead of object size in command parser

Testcase: igt/gem_exec_nop #ivb,byt,hsw
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[cherry picked from commit 743e78c1d726d875b98ff9689cc77c4d3d5d9ae2
from drm-intel-next because 4.0 seems to be affected by this too,
despite that the obvious culprit is definitely not in 4.0. Whatever,
if fixes a bug.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-03-30 16:59:47 +02:00
Eugene Korenevsky
2f729b10bb KVM: remove useless check of "ret" variable prior to returning the same value
A trivial code cleanup. This `if` is redundant.

Signed-off-by: Eugene Korenevsky <ekorenevsky@gmail.com>
Message-Id: <20150328222717.GA6508@gnote>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-30 16:57:15 +02:00
Nadav Amit
b32a991800 KVM: x86: Remove redundant definitions
Some constants are redfined in emulate.c. Avoid it.

s/SELECTOR_RPL_MASK/SEGMENT_RPL_MASK
s/SELECTOR_TI_MASK/SEGMENT_TI_MASK

No functional change.

Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Message-Id: <1427635984-8113-3-git-send-email-namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-30 16:46:42 +02:00
Nadav Amit
0efb04406d KVM: x86: removing redundant eflags bits definitions
The eflags are redefined (using other defines) in emulate.c.
Use the definition from processor-flags.h as some mess already started.
No functional change.

Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Message-Id: <1427635984-8113-2-git-send-email-namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-30 16:46:37 +02:00
Nadav Amit
900efe200e KVM: x86: BSF and BSR emulation change register unnecassarily
If the source of BSF and BSR is zero, the destination register should not
change. That is how real hardware behaves.  If we set the destination even with
the same value that we had before, we may clear bits [63:32] unnecassarily.

Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Message-Id: <1427719163-5429-4-git-send-email-namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-30 16:46:11 +02:00
Nadav Amit
6fd8e12757 KVM: x86: POPA emulation may not clear bits [63:32]
POPA should assign the values to the registers as usual registers are assigned.
In other words, 32-bits register assignments should clear bits [63:32] of the
register.

Split the code of register assignments that will be used by future changes as
well.

Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Message-Id: <1427719163-5429-3-git-send-email-namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-30 16:46:03 +02:00
Nadav Amit
b91aa14d95 KVM: x86: CMOV emulation on legacy mode is wrong
On legacy mode CMOV emulation should still clear bits [63:32] even if the
assignment is not done. The previous fix 140bad89fd ("KVM: x86: emulation of
dword cmov on long-mode should clear [63:32]") was incomplete.

Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Message-Id: <1427719163-5429-2-git-send-email-namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-30 16:45:50 +02:00
Petr Matousek
2dccb4cdbf kvm: x86: i8259: return initialized data on invalid-size read
If data is read from PIC with invalid access size, the return data stays
uninitialized even though success is returned.

Fix this by always initializing the data.

Signed-off-by: Petr Matousek <pmatouse@redhat.com>
Reported-by: Nadav Amit <nadav.amit@gmail.com>
Message-Id: <20150311111609.GG8544@dhcp-25-225.brq.redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-30 16:40:07 +02:00
Paolo Bonzini
65844bb0a7 MIPS KVM Guest FPU & SIMD (MSA) Support
Add guest FPU and MIPS SIMD Architecture (MSA) support to MIPS KVM, by
 enabling the host FPU/MSA while in guest mode. This adds two new KVM
 capabilities, KVM_CAP_MIPS_FPU & KVM_CAP_MIPS_MSA, and supports the 3 FP
 register modes (FR=0, FR=1, FRE=1), and 128-bit MSA vector registers,
 with lazy FPU/MSA context save and restore.
 
 Some required MIPS FP/MSA fixes are merged in from a branch in the MIPS
 tree first.
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Merge tag 'kvm_mips_20150327' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/kvm-mips into kvm-next

MIPS KVM Guest FPU & SIMD (MSA) Support

Add guest FPU and MIPS SIMD Architecture (MSA) support to MIPS KVM, by
enabling the host FPU/MSA while in guest mode. This adds two new KVM
capabilities, KVM_CAP_MIPS_FPU & KVM_CAP_MIPS_MSA, and supports the 3 FP
register modes (FR=0, FR=1, FRE=1), and 128-bit MSA vector registers,
with lazy FPU/MSA context save and restore.

Some required MIPS FP/MSA fixes are merged in from a branch in the MIPS
tree first.
2015-03-30 16:37:06 +02:00
Kalle Valo
69628cd065 * fix a memory leak: we leaked memory each time the module
was loaded.
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Merge tag 'iwlwifi-for-kalle-2015-03-30' of https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes

* fix a memory leak: we leaked memory each time the module
was loaded.
2015-03-30 09:39:12 +03:00
Dave Airlie
91fd89660b Merge branch 'drm-fixes-4.0' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
A few more fixes for 4.0 for radeon.  Sorry for the delay, I was
a little under the weather this week and time got away from me.

* 'drm-fixes-4.0' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: programm the VCE fw BAR as well
  drm/radeon: always dump the ring content if it's available
  radeon: Do not directly dereference pointers to BIOS area.
  drm/radeon/dpm: fix 120hz handling harder
2015-03-30 12:17:27 +10:00
Linus Torvalds
e42391cd04 Linux 4.0-rc6 2015-03-29 15:26:31 -07:00
Linus Torvalds
08f41f7c35 ARM: SoC fixes
The latest and greatest fixes for ARM platform code. Worth pointing out are:
 
 - Lines-wise, largest is a PXA fix for dealing with interrupts on DT that was
   quite broken. It's still newish code so while we could have held this off,
   it seemed appropriate to include now
 - Some GPIO fixes for OMAP platforms added a few lines. This was also fixes for
   code recently added (this release).
 - Small OMAP timer fix to behave better with partially upstreamed platforms,
   which is quite welcome.
 - Allwinner fixes about operating point control, reducing overclocking in some
   cases for better stability.
 
 + a handful of other smaller fixes across the map.
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Merge tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "The latest and greatest fixes for ARM platform code.  Worth pointing
  out are:

   - Lines-wise, largest is a PXA fix for dealing with interrupts on DT
     that was quite broken.  It's still newish code so while we could
     have held this off, it seemed appropriate to include now

   - Some GPIO fixes for OMAP platforms added a few lines.  This was
     also fixes for code recently added (this release).

   - Small OMAP timer fix to behave better with partially upstreamed
     platforms, which is quite welcome.

   - Allwinner fixes about operating point control, reducing
     overclocking in some cases for better stability.

  plus a handful of other smaller fixes across the map"

* tag 'armsoc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  arm64: juno: Fix misleading name of UART reference clock
  ARM: dts: sunxi: Remove overclocked/overvoltaged OPP
  ARM: dts: sun4i: a10-lime: Override and remove 1008MHz OPP setting
  ARM: socfpga: dts: fix spi1 interrupt
  ARM: dts: Fix gpio interrupts for dm816x
  ARM: dts: dra7: remove ti,hwmod property from pcie phy
  ARM: OMAP: dmtimer: disable pm runtime on remove
  ARM: OMAP: dmtimer: check for pm_runtime_get_sync() failure
  ARM: OMAP2+: Fix socbus family info for AM33xx devices
  ARM: dts: omap3: Add missing dmas for crypto
  ARM: dts: rockchip: disable gmac by default in rk3288.dtsi
  MAINTAINERS: add rockchip regexp to the ARM/Rockchip entry
  ARM: pxa: fix pxa interrupts handling in DT
  ARM: pxa: Fix typo in zeus.c
  ARM: sunxi: Have ARCH_SUNXI select RESET_CONTROLLER for clock driver usage
2015-03-29 15:09:31 -07:00
Olof Johansson
4550bdb0bd Allwinner fixes for 4.0
There's a few fixes to merge for 4.0, one to add a select in the machine
 Kconfig option to fix a potential build failure, and two fixing cpufreq related
 issues.
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Merge tag 'sunxi-fixes-for-4.0' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into fixes

Allwinner fixes for 4.0

There's a few fixes to merge for 4.0, one to add a select in the machine
Kconfig option to fix a potential build failure, and two fixing cpufreq related
issues.

* tag 'sunxi-fixes-for-4.0' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  ARM: dts: sunxi: Remove overclocked/overvoltaged OPP
  ARM: dts: sun4i: a10-lime: Override and remove 1008MHz OPP setting
  ARM: sunxi: Have ARCH_SUNXI select RESET_CONTROLLER for clock driver usage

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-03-29 14:01:02 -07:00
Olof Johansson
b1dae3d8b0 Fixes for omaps for the -rc cycle:
- Fix a device tree based booting vs legacy booting regression for
   omap3 crypto hardware by adding the missing DMA channels.
 
 - Fix /sys/bus/soc/devices/soc0/family for am33xx devices.
 
 - Fix two timer issues that can cause hangs if the timer related
   hwmod data is missing like it often initially is for new SoCs.
 
 - Remove pcie hwmods entry from dts as that causes runtime PM to
   fail for the PHYs.
 
 - A paper bag type dts configuration fix for dm816x GPIO
   interrupts that I just noticed. This is most of the changes
   diffstat wise, but as it's a basic feature for connecting
   devices and things work otherwise, it should be fixed.
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Merge tag 'fixes-v4.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Fixes for omaps for the -rc cycle:

- Fix a device tree based booting vs legacy booting regression for
  omap3 crypto hardware by adding the missing DMA channels.

- Fix /sys/bus/soc/devices/soc0/family for am33xx devices.

- Fix two timer issues that can cause hangs if the timer related
  hwmod data is missing like it often initially is for new SoCs.

- Remove pcie hwmods entry from dts as that causes runtime PM to
  fail for the PHYs.

- A paper bag type dts configuration fix for dm816x GPIO
  interrupts that I just noticed. This is most of the changes
  diffstat wise, but as it's a basic feature for connecting
  devices and things work otherwise, it should be fixed.

* tag 'fixes-v4.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: Fix gpio interrupts for dm816x
  ARM: dts: dra7: remove ti,hwmod property from pcie phy
  ARM: OMAP: dmtimer: disable pm runtime on remove
  ARM: OMAP: dmtimer: check for pm_runtime_get_sync() failure
  ARM: OMAP2+: Fix socbus family info for AM33xx devices
  ARM: dts: omap3: Add missing dmas for crypto

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-03-29 13:59:16 -07:00
Olof Johansson
ebc0aa8fd5 Late fix for v4.0 on the SoCFPGA platform:
- Fix interrupt number for SPI1 interface
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Merge tag 'socfpga_fix_for_v4.0_2' of git://git.rocketboards.org/linux-socfpga-next into fixes

Late fix for v4.0 on the SoCFPGA platform:
- Fix interrupt number for SPI1 interface

* tag 'socfpga_fix_for_v4.0_2' of git://git.rocketboards.org/linux-socfpga-next:
  ARM: socfpga: dts: fix spi1 interrupt

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-03-29 13:58:14 -07:00
Dave Martin
78d84bc373 arm64: juno: Fix misleading name of UART reference clock
The UART reference clock speed is 7273.8 kHz, not 72738 kHz.

Dots aren't usually used in node names even though ePAPR permits
them.  However, this can easily be avoided by expressing the
frequency in Hz, not kHz.

This patch changes the name to refclk7273800hz, reflecting the
actual clock speed.

Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2015-03-29 13:56:08 -07:00
Olof Johansson
53b1a66398 arm: pxa: fixes for v4.0-rc5
There are only 2 fixes, one for the zeus board about the regulator changes,
 where a typo prevented the zeus board from having a working can regulator,
 and one regression triggered by the interrupts IRQ shift of 16 affecting all
 boards.
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Merge tag 'fixes-for-v4.0-rc5' of https://github.com/rjarzmik/linux into fixes

arm: pxa: fixes for v4.0-rc5

There are only 2 fixes, one for the zeus board about the regulator changes,
where a typo prevented the zeus board from having a working can regulator,
and one regression triggered by the interrupts IRQ shift of 16 affecting all
boards.

* tag 'fixes-for-v4.0-rc5' of https://github.com/rjarzmik/linux:
  ARM: pxa: fix pxa interrupts handling in DT
  ARM: pxa: Fix typo in zeus.c

Signed-off-by: Olof Johansson <olof@lixom.net>
2015-03-29 13:47:37 -07:00
Uwe Kleine-König
63c6073214 net: fec: setup right value for mdio hold time
The FEC modules used on i.MX28 and newer have a register to tune the MDIO
output hold time that should be at least 10 ns. Up to now this value was not
explicitly set and so resulted in less hold time if the fec clock was
faster than 100 MHz.

This was noticed on an i.MX28 machine that uses an input clock of ~150
Mhz which resulted in unreliable communication with a Marvell switch.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 13:40:36 -07:00
Alexey Kodanev
4ad19de877 net: tcp6: fix double call of tcp_v6_fill_cb()
tcp_v6_fill_cb() will be called twice if socket's state changes from
TCP_TIME_WAIT to TCP_LISTEN. That can result in control buffer data
corruption because in the second tcp_v6_fill_cb() call it's not copying
IP6CB(skb) anymore, but 'seq', 'end_seq', etc., so we can get weird and
unpredictable results. Performance loss of up to 1200% has been observed
in LTP/vxlan03 test.

This can be fixed by copying inet6_skb_parm to the beginning of 'cb'
only if xfrm6_policy_check() and tcp_v6_fill_cb() are going to be
called again.

Fixes: 2dc49d1680b53 ("tcp6: don't move IP6CB before xfrm6_policy_check()")

Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-29 13:36:05 -07:00