Commit Graph

519750 Commits

Author SHA1 Message Date
Linus Torvalds
4cce593f1b Update location of Jean Delvare's hwmon quilt tree
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Merge tag 'hwmon-for-linus-v4.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixlet from Guenter Roeck:
 "Update location of Jean Delvare's hwmon quilt tree"

* tag 'hwmon-for-linus-v4.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: Update the location of my quilt tree
2015-05-21 16:38:14 -07:00
Thomas Hellstrom
15397f153c Input: joydev - don't classify the vmmouse as a joystick
Joydev is currently thinking some absolute mice are joystick, and that
messes up games in VMware guests, as the cursor typically gets stuck in
the top left corner.

Try to detect the event signature of a VMmouse input device and back off
for such devices. We're still incorrectly detecting, for example, the
VMware absolute USB mouse as a joystick, but adding an event signature
matching also that device would be considerably more risky, so defer that
to a later merge window.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-05-21 15:58:27 -07:00
Daniel Borkmann
c78e1746d3 net: sched: fix call_rcu() race on classifier module unloads
Vijay reported that a loop as simple as ...

  while true; do
    tc qdisc add dev foo root handle 1: prio
    tc filter add dev foo parent 1: u32 match u32 0 0  flowid 1
    tc qdisc del dev foo root
    rmmod cls_u32
  done

... will panic the kernel. Moreover, he bisected the change
apparently introducing it to 78fd1d0ab0 ("netlink: Re-add
locking to netlink_lookup() and seq walker").

The removal of synchronize_net() from the netlink socket
triggering the qdisc to be removed, seems to have uncovered
an RCU resp. module reference count race from the tc API.
Given that RCU conversion was done after e341694e3e ("netlink:
Convert netlink_lookup() to use RCU protected hash table")
which added the synchronize_net() originally, occasion of
hitting the bug was less likely (not impossible though):

When qdiscs that i) support attaching classifiers and,
ii) have at least one of them attached, get deleted, they
invoke tcf_destroy_chain(), and thus call into ->destroy()
handler from a classifier module.

After RCU conversion, all classifier that have an internal
prio list, unlink them and initiate freeing via call_rcu()
deferral.

Meanhile, tcf_destroy() releases already reference to the
tp->ops->owner module before the queued RCU callback handler
has been invoked.

Subsequent rmmod on the classifier module is then not prevented
since all module references are already dropped.

By the time, the kernel invokes the RCU callback handler from
the module, that function address is then invalid.

One way to fix it would be to add an rcu_barrier() to
unregister_tcf_proto_ops() to wait for all pending call_rcu()s
to complete.

synchronize_rcu() is not appropriate as under heavy RCU
callback load, registered call_rcu()s could be deferred
longer than a grace period. In case we don't have any pending
call_rcu()s, the barrier is allowed to return immediately.

Since we came here via unregister_tcf_proto_ops(), there
are no users of a given classifier anymore. Further nested
call_rcu()s pointing into the module space are not being
done anywhere.

Only cls_bpf_delete_prog() may schedule a work item, to
unlock pages eventually, but that is not in the range/context
of cls_bpf anymore.

Fixes: 25d8c0d55f ("net: rcu-ify tcf_proto")
Fixes: 9888faefe1 ("net: sched: cls_basic use RCU")
Reported-by: Vijay Subramanian <subramanian.vijay@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: John Fastabend <john.r.fastabend@intel.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Thomas Graf <tgraf@suug.ch>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Tested-by: Vijay Subramanian <subramanian.vijay@gmail.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-21 18:48:18 -04:00
Alex Deucher
6ca121351b drm/radeon: fix error flag checking in native aux path
That atom table does not check these bits.  Fixes aux
regressions on some boards.

Reported-by: Malte Schröder <malte@tnxip.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2015-05-21 12:43:21 -04:00
Alex Deucher
0f28d1281b drm/radeon: retry dcpd fetch
Retry the dpcd fetch several times.  Some eDP panels
fail several times before the fetch is successful.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=73530

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2015-05-21 12:43:21 -04:00
Stephane Viau
755c814a7d drm/msm/mdp5: fix incorrect parameter for msm_framebuffer_iova()
The index of ->planes[] array (3rd parameter) cannot be equal to MAX_PLANE.
This looks like a typo that is now fixed.

Signed-off-by: Stephane Viau <sviau@codeaurora.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-05-21 14:31:45 +10:00
NeilBrown
8532e34390 md/bitmap: remove rcu annotation from pointer arithmetic.
Evaluating  "&mddev->disks" is simple pointer arithmetic, so
it does not need 'rcu' annotations - no dereferencing is happening.

Also enhance the comment to explain that 'rdev' in that case
is not actually a pointer to an rdev.

Reported-by: Patrick Marlier <patrick.marlier@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
2015-05-21 09:14:41 +10:00
Eric Work
a81157768a md/raid0: fix restore to sector variable in raid0_make_request
The variable "sector" in "raid0_make_request()" was improperly updated
by a call to "sector_div()" which modifies its first argument in place.
Commit 47d68979cc restored this variable
after the call for later re-use.  Unfortunetly the restore was done after
the referenced variable "bio" was advanced.  This lead to the original
value and the restored value being different.  Here we move this line to
the proper place.

One observed side effect of this bug was discarding a file though
unlinking would cause an unrelated file's contents to be discarded.

Signed-off-by: NeilBrown <neilb@suse.de>
Fixes: 47d68979cc ("md/raid0: fix bug with chunksize not a power of 2.")
Cc: stable@vger.kernel.org (any that received above backport)
URL: https://bugzilla.kernel.org/show_bug.cgi?id=98501
2015-05-21 09:14:25 +10:00
Shaohua Li
487696957e raid5: fix broken async operation chain
ops_run_reconstruct6() doesn't correctly chain asyn operations. The tx returned
by async_gen_syndrome should be added as the dependent tx of next stripe.

The issue is introduced by commit 59fc630b8b
    RAID5: batch adjacent full stripe write

Reported-and-tested-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: NeilBrown <neilb@suse.de>
2015-05-21 09:14:20 +10:00
Thomas Hellstrom
412dbad2c7 Input: vmmouse - do not reference non-existing version of X driver
The vmmouse Kconfig help text was referring to an incorrect user-space
driver version. Fix this.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-05-20 14:47:26 -07:00
Hans de Goede
72eceab743 Input: alps - fix finger jumps on lifting 2 fingers on v7 touchpad
On v7 touchpads sometimes when 2 fingers are moved down on the touchpad
until they "fall of" the touchpad, the second touch will report 0 for y
(max y really since the y axis is inverted) and max x as coordinates,
rather then reporting 0, 0 as is expected for a non touching finger.

This commit detects this and treats these touches as non touching.

See the evemu-recording here:
https://bugzilla.redhat.com/attachment.cgi?id=1025058

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1221200
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-05-20 14:46:02 -07:00
Matthew Finlay
c07678bb01 IB/cma: Fix broken AF_IB UD support
Support for using UD and AF_IB is currently broken.  The
IB_CM_SIDR_REQ_RECEIVED message is not handled properly in
cma_save_net_info() and we end up falling into code that will try and
process the request as ipv4/ipv6, which will end up failing.

The resolution is to add a check for the SIDR_REQ and call
cma_save_ib_info() with a NULL path record.  Change cma_save_ib_info()
to copy the src sib info from the listen_id when the path record is NULL.

Reported-by: Hari Shankar <Hari.Shankar@netapp.com>
Signed-off-by: Matt Finlay <matt@mellanox.com>
Acked-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-05-20 16:15:56 -04:00
Minghuan Lian
3ad2a5f576 irqchip/gicv3-its: ITS table size should not be smaller than PSZ
When allocating a device table, if the requested allocation is smaller
than the default granule size of the ITS then, we need to round up to
the default size.

Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com>
[ stuart: Added comments and massaged changelog ]
Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Reviewed-by: Marc Zygnier <marc.zyngier@arm.com>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: <jason@lakedaemon.net>
Link: http://lkml.kernel.org/r/1432134795-661-1-git-send-email-stuart.yoder@freescale.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-05-20 22:13:37 +02:00
Chris Mason
153c35b6cc Btrfs: fix regression in raid level conversion
Commit 2f0810880f changed
btrfs_set_block_group_ro to avoid trying to allocate new chunks with the
new raid profile during conversion.  This fixed failures when there was
no space on the drive to allocate a new chunk, but the metadata
reserves were sufficient to continue the conversion.

But this ended up causing a regression when the drive had plenty of
space to allocate new chunks, mostly because reduce_alloc_profile isn't
using the new raid profile.

Fixing btrfs_reduce_alloc_profile is a bigger patch.  For now, do a
partial revert of 2f0810880, and don't error out if we hit ENOSPC.

Signed-off-by: Chris Mason <clm@fb.com>
Tested-by: Dave Sterba <dsterba@suse.cz>
Reported-by: Holger Hoffstaette <holger.hoffstaette@googlemail.com>
2015-05-20 11:03:38 -07:00
Ilya Dryomov
521a04d06a Revert "libceph: clear r_req_lru_item in __unregister_linger_request()"
This reverts commit ba9d114ec5.

.. which introduced a regression that prevented all lingering requests
requeued in kick_requests() from ever being sent to the OSDs, resulting
in a lot of missed notifies.  In retrospect it's pretty obvious that
r_req_lru_item item in the case of lingering requests can be used not
only for notarget, but also for unsent linkage due to how tightly
actual map and enqueue operations are coupled in __map_request().

The assertion that was being silenced is taken care of in the previous
("libceph: request a new osdmap if lingering request maps to no osd")
commit: by always kicking homeless lingering requests we ensure that
none of them ends up on the notarget list outside of the critical
section guarded by request_mutex.

Cc: stable@vger.kernel.org # 3.18+, needs b049453221 "libceph: request a new osdmap if lingering request maps to no osd"
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
2015-05-20 21:02:46 +03:00
Ilya Dryomov
b049453221 libceph: request a new osdmap if lingering request maps to no osd
This commit does two things.  First, if there are any homeless
lingering requests, we now request a new osdmap even if the osdmap that
is being processed brought no changes, i.e. if a given lingering
request turned homeless in one of the previous epochs and remained
homeless in the current epoch.  Not doing so leaves us with a stale
osdmap and as a result we may miss our window for reestablishing the
watch and lose notifies.

MON=1 OSD=1:

    # cat linger-needmap.sh
    #!/bin/bash
    rbd create --size 1 test
    DEV=$(rbd map test)
    ceph osd out 0
    rbd map dne/dne # obtain a new osdmap as a side effect (!)
    sleep 1
    ceph osd in 0
    rbd resize --size 2 test
    # rbd info test | grep size -> 2M
    # blockdev --getsize $DEV -> 1M

N.B.: Not obtaining a new osdmap in between "osd out" and "osd in"
above is enough to make it miss that resize notify, but that is a
bug^Wlimitation of ceph watch/notify v1.

Second, homeless lingering requests are now kicked just like those
lingering requests whose mapping has changed.  This is mainly to
recognize that a homeless lingering request makes no sense and to
preserve the invariant that a registered lingering request is not
sitting on any of r_req_lru_item lists.  This spares us a WARN_ON,
which commit ba9d114ec5 ("libceph: clear r_req_lru_item in
__unregister_linger_request()") tried to fix the _wrong_ way.

Cc: stable@vger.kernel.org # 3.10+
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
2015-05-20 21:02:14 +03:00
Ted Kim
c29ed5a456 ib/cm: Change reject message type when destroying cm_id
Problem reported by: Ted Kim <ted.h.kim@oracle.com>:

We have a case where a Linux system and a non-Linux system are
trying to interoperate.  The Linux host is the active side and
starts the connection establishment, but later decides to not go
through with the connection setup and does rdma_destroy_id().

The rdma_destroy_id() eventually works its way down to cm_destroy_id()
in core/cm.c, where a REJ is sent. The non-Linux system
has some trouble recognizing the REJ because of:

A. CM states which can't receive the REJ
B. Some issues about REJ formatting (missing comm ID)

ISSUE A: That part of the spec says, a Consumer Reject REJ can be
sent for a connection abort, but it goes further
and says: can send a REJ message with a "Consumer Reject"
Reason code if they are in a CM state (i.e. REP
Rcvd, MRA(REP) Sent, REQ Rcvd, MRA Sent) that allows
a REJ to be sent (lines 35-38).

Of the states listed there in that sentence, it would
seem to limit the active side to using the Consumer Reject
(for the abort case) in just the REP-Rcvd and MRA-REP-Sent
states. That is basically only after the active side
sees a REP (or alternatively goes down the state transitions
to timeout in which case a Timeout REJ is sent).

As a fix, in cm-destroy-id() move the IB-CM-MRA-REQ-RCVD case
to the same as REQ-SENT.  Essentially, make a REJ sent after
getting an MRA on active side a timeout rather than Consumer-
Reject, which is arguably more correct with the CM state
diagrams previous to getting a REP.

Signed-off-by: Ted Kim <ted.h.kim@oracle.com>
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
2015-05-20 12:41:38 -04:00
Tim Beale
c15e10e71c net: phy: Make sure phy_start() always re-enables the phy interrupts
This is an alternative way of fixing:
 commit db9683fb41 ("net: phy: Make sure PHY_RESUMING state change
                      is always processed")

When the PHY state transitions from PHY_HALTED to PHY_RESUMING, there are
two things we need to do:
1). Re-enable interrupts (and power up the physical link, if powered down)
2). Update the PHY state and net-device based on the link status.

There's no strict reason why #1 has to be done from within the main
phy_state_machine() function. There is a risk that other changes to the
PHY (e.g. setting speed/duplex, which calls phy_start_aneg()) could cause
a subsequent state transition before phy_state_machine() has processed
the PHY_RESUMING state change. This would leave the PHY with interrupts
disabled and/or still in the BMCR_PDOWN/low-power mode.

Moving enabling the interrupts and phy_resume() into phy_start() will
guarantee this work always gets done. As the PHY is already in the HALTED
state and interrupts are disabled, it shouldn't conflict with any work
being done in phy_state_machine(). The downside of this change is that if
the PHY_RESUMING state is ever entered from anywhere else, it'll also have
to repeat this work.

Signed-off-by: Tim Beale <tim.beale@alliedtelesis.co.nz>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-20 12:22:08 -04:00
David S. Miller
7764b9dd38 Merge branch 'ipv6_ecmp_fixes'
Michal Kubecek says:

====================
IPv6 ECMP route add/replace fixes

(1) When adding a nexthop of a multipath route fails (e.g. because of a
conflict with an existing route), we are supposed to delete nexthops
already added. However, currently we try to also delete all nexthops we
haven't even tried to add yet so that a "ip route add" command can
actually remove pre-existing routes if it fails.

(2) Attempt to replace a multipath route results in a broken siblings
linked list. Following commands (like "ip route del") can then either
follow a link into freed memory or end in an infinite loop (if the slab
object has been reused).

v2: fix an omission in first patch

v3: change the semantics of replace operation to better match IPv4
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-20 12:02:26 -04:00
Michal Kubeček
2759647247 ipv6: fix ECMP route replacement
When replacing an IPv6 multipath route with "ip route replace", i.e.
NLM_F_CREATE | NLM_F_REPLACE, fib6_add_rt2node() replaces only first
matching route without fixing its siblings, resulting in corrupted
siblings linked list; removing one of the siblings can then end in an
infinite loop.

IPv6 ECMP implementation is a bit different from IPv4 so that route
replacement cannot work in exactly the same way. This should be a
reasonable approximation:

1. If the new route is ECMP-able and there is a matching ECMP-able one
already, replace it and all its siblings (if any).

2. If the new route is ECMP-able and no matching ECMP-able route exists,
replace first matching non-ECMP-able (if any) or just add the new one.

3. If the new route is not ECMP-able, replace first matching
non-ECMP-able route (if any) or add the new route.

We also need to remove the NLM_F_REPLACE flag after replacing old
route(s) by first nexthop of an ECMP route so that each subsequent
nexthop does not replace previous one.

Fixes: 51ebd31815 ("ipv6: add support of equal cost multipath (ECMP)")
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-20 12:02:26 -04:00
Michal Kubeček
35f1b4e96b ipv6: do not delete previously existing ECMP routes if add fails
If adding a nexthop of an IPv6 multipath route fails, comment in
ip6_route_multipath() says we are going to delete all nexthops already
added. However, current implementation deletes even the routes it
hasn't even tried to add yet. For example, running

  ip route add 1234:5678::/64 \
      nexthop via fe80::aa dev dummy1 \
      nexthop via fe80::bb dev dummy1 \
      nexthop via fe80::cc dev dummy1

twice results in removing all routes first command added.

Limit the second (delete) run to nexthops that succeeded in the first
(add) run.

Fixes: 51ebd31815 ("ipv6: add support of equal cost multipath (ECMP)")
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-20 12:02:25 -04:00
Florian Westphal
faecbb45eb Revert "netfilter: bridge: query conntrack about skb dnat"
This reverts commit c055d5b03b.

There are two issues:
'dnat_took_place' made me think that this is related to
-j DNAT/MASQUERADE.

But thats only one part of the story.  This is also relevant for SNAT
when we undo snat translation in reverse/reply direction.

Furthermore, I originally wanted to do this mainly to avoid
storing ipv6 addresses once we make DNAT/REDIRECT work
for ipv6 on bridges.

However, I forgot about SNPT/DNPT which is stateless.

So we can't escape storing address for ipv6 anyway. Might as
well do it for ipv4 too.

Reported-and-tested-by: Bernhard Thaler <bernhard.thaler@wvnet.at>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-05-20 13:51:25 +02:00
Dave Jones
1086bbe97a netfilter: ensure number of counters is >0 in do_replace()
After improving setsockopt() coverage in trinity, I started triggering
vmalloc failures pretty reliably from this code path:

warn_alloc_failed+0xe9/0x140
__vmalloc_node_range+0x1be/0x270
vzalloc+0x4b/0x50
__do_replace+0x52/0x260 [ip_tables]
do_ipt_set_ctl+0x15d/0x1d0 [ip_tables]
nf_setsockopt+0x65/0x90
ip_setsockopt+0x61/0xa0
raw_setsockopt+0x16/0x60
sock_common_setsockopt+0x14/0x20
SyS_setsockopt+0x71/0xd0

It turns out we don't validate that the num_counters field in the
struct we pass in from userspace is initialized.

The same problem also exists in ebtables, arptables, ipv6, and the
compat variants.

Signed-off-by: Dave Jones <davej@codemonkey.org.uk>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-05-20 13:46:49 +02:00
Francesco Ruggeri
3bfe049807 netfilter: nfnetlink_{log,queue}: Register pernet in first place
nfnetlink_{log,queue}_init() register the netlink callback nf*_rcv_nl_event
before registering the pernet_subsys, but the callback relies on data
structures allocated by pernet init functions.

When nfnetlink_{log,queue} is loaded, if a netlink message is received after
the netlink callback is registered but before the pernet_subsys is registered,
the kernel will panic in the sequence

nfulnl_rcv_nl_event
  nfnl_log_pernet
    net_generic
      BUG_ON(id == 0)  where id is nfnl_log_net_id.

The panic can be easily reproduced in 4.0.3 by:

while true ;do modprobe nfnetlink_log ; rmmod nfnetlink_log ; done &
while true ;do ip netns add dummy ; ip netns del dummy ; done &

This patch moves register_pernet_subsys to earlier in nfnetlink_log_init.

Notice that the BUG_ON hit in 4.0.3 was recently removed in 2591ffd308
["netns: remove BUG_ONs from net_generic()"].

Signed-off-by: Francesco Ruggeri <fruggeri@arista.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2015-05-20 13:46:48 +02:00
Liang Li
c447e76b4c kvm/fpu: Enable eager restore kvm FPU for MPX
The MPX feature requires eager KVM FPU restore support. We have verified
that MPX cannot work correctly with the current lazy KVM FPU restore
mechanism. Eager KVM FPU restore should be enabled if the MPX feature is
exposed to VM.

Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Signed-off-by: Liang Li <liang.z.li@intel.com>
[Also activate the FPU on AMD processors. - Paolo]
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-05-20 12:30:26 +02:00
Paolo Bonzini
0fdd74f778 Revert "KVM: x86: drop fpu_activate hook"
This reverts commit 4473b570a7.  We'll
use the hook again.

Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-05-20 12:30:15 +02:00
Andrea Arcangeli
e8fd5e9e99 kvm: fix crash in kvm_vcpu_reload_apic_access_page
memslot->userfault_addr is set by the kernel with a mmap executed
from the kernel but the userland can still munmap it and lead to the
below oops after memslot->userfault_addr points to a host virtual
address that has no vma or mapping.

[  327.538306] BUG: unable to handle kernel paging request at fffffffffffffffe
[  327.538407] IP: [<ffffffff811a7b55>] put_page+0x5/0x50
[  327.538474] PGD 1a01067 PUD 1a03067 PMD 0
[  327.538529] Oops: 0000 [#1] SMP
[  327.538574] Modules linked in: macvtap macvlan xt_CHECKSUM iptable_mangle ipt_MASQUERADE nf_nat_masquerade_ipv4 iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT iptable_filter ip_tables tun bridge stp llc rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache xprtrdma ib_isert iscsi_target_mod ib_iser libiscsi scsi_transport_iscsi ib_srpt target_core_mod ib_srp scsi_transport_srp scsi_tgt ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm ipmi_devintf iTCO_wdt iTCO_vendor_support intel_powerclamp coretemp dcdbas intel_rapl kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd pcspkr sb_edac edac_core ipmi_si ipmi_msghandler acpi_pad wmi acpi_power_meter lpc_ich mfd_core mei_me
[  327.539488]  mei shpchp nfsd auth_rpcgss nfs_acl lockd grace sunrpc mlx4_ib ib_sa ib_mad ib_core mlx4_en vxlan ib_addr ip_tunnel xfs libcrc32c sd_mod crc_t10dif crct10dif_common crc32c_intel mgag200 syscopyarea sysfillrect sysimgblt i2c_algo_bit drm_kms_helper ttm drm ahci i2c_core libahci mlx4_core libata tg3 ptp pps_core megaraid_sas ntb dm_mirror dm_region_hash dm_log dm_mod
[  327.539956] CPU: 3 PID: 3161 Comm: qemu-kvm Not tainted 3.10.0-240.el7.userfault19.4ca4011.x86_64.debug #1
[  327.540045] Hardware name: Dell Inc. PowerEdge R420/0CN7CM, BIOS 2.1.2 01/20/2014
[  327.540115] task: ffff8803280ccf00 ti: ffff880317c58000 task.ti: ffff880317c58000
[  327.540184] RIP: 0010:[<ffffffff811a7b55>]  [<ffffffff811a7b55>] put_page+0x5/0x50
[  327.540261] RSP: 0018:ffff880317c5bcf8  EFLAGS: 00010246
[  327.540313] RAX: 00057ffffffff000 RBX: ffff880616a20000 RCX: 0000000000000000
[  327.540379] RDX: 0000000000002014 RSI: 00057ffffffff000 RDI: fffffffffffffffe
[  327.540445] RBP: ffff880317c5bd10 R08: 0000000000000103 R09: 0000000000000000
[  327.540511] R10: 0000000000000000 R11: 0000000000000000 R12: fffffffffffffffe
[  327.540576] R13: 0000000000000000 R14: ffff880317c5bd70 R15: ffff880317c5bd50
[  327.540643] FS:  00007fd230b7f700(0000) GS:ffff880630800000(0000) knlGS:0000000000000000
[  327.540717] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  327.540771] CR2: fffffffffffffffe CR3: 000000062a2c3000 CR4: 00000000000427e0
[  327.540837] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  327.540904] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[  327.540974] Stack:
[  327.541008]  ffffffffa05d6d0c ffff880616a20000 0000000000000000 ffff880317c5bdc0
[  327.541093]  ffffffffa05ddaa2 0000000000000000 00000000002191bf 00000042f3feab2d
[  327.541177]  00000042f3feab2d 0000000000000002 0000000000000001 0321000000000000
[  327.541261] Call Trace:
[  327.541321]  [<ffffffffa05d6d0c>] ? kvm_vcpu_reload_apic_access_page+0x6c/0x80 [kvm]
[  327.543615]  [<ffffffffa05ddaa2>] vcpu_enter_guest+0x3f2/0x10f0 [kvm]
[  327.545918]  [<ffffffffa05e2f10>] kvm_arch_vcpu_ioctl_run+0x2b0/0x5a0 [kvm]
[  327.548211]  [<ffffffffa05e2d02>] ? kvm_arch_vcpu_ioctl_run+0xa2/0x5a0 [kvm]
[  327.550500]  [<ffffffffa05ca845>] kvm_vcpu_ioctl+0x2b5/0x680 [kvm]
[  327.552768]  [<ffffffff810b8d12>] ? creds_are_invalid.part.1+0x12/0x50
[  327.555069]  [<ffffffff810b8d71>] ? creds_are_invalid+0x21/0x30
[  327.557373]  [<ffffffff812d6066>] ? inode_has_perm.isra.49.constprop.65+0x26/0x80
[  327.559663]  [<ffffffff8122d985>] do_vfs_ioctl+0x305/0x530
[  327.561917]  [<ffffffff8122dc51>] SyS_ioctl+0xa1/0xc0
[  327.564185]  [<ffffffff816de829>] system_call_fastpath+0x16/0x1b
[  327.566480] Code: 0b 31 f6 4c 89 e7 e8 4b 7f ff ff 0f 0b e8 24 fd ff ff e9 a9 fd ff ff 66 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 <48> f7 07 00 c0 00 00 55 48 89 e5 75 2a 8b 47 1c 85 c0 74 1e f0

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-05-20 12:30:06 +02:00
Ping Cheng
26ba61f871 HID: wacom: fix an Oops caused by wacom_wac_finger_count_touches
We assumed all touch interfaces report touch data. But, Bamboo
and Intuos non-touch devices report express keys on touch
interface. We need to check touch_max before counting touches.

Reported-by: Tasos Sahanidis <tasos@tasossah.com>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-05-20 12:00:29 +02:00
Takashi Iwai
219f47e4f9 ALSA: hda - Disable widget power-saving for ALC292 & co
We've got reports that ALC3226 (a Dell variant of ALC292) gives click
noises at transition from D3 to D0 when the widget power-saving is
enabled.  Further debugging session showed that avoiding it isn't
trivial, unfortunately, since paths are basically activated
dynamically while the pins have been already enabled.

This patch disables the widget power-saving for such codecs.

Reported-by: Jonathan McDowell <noodles@earth.li>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-05-20 06:56:23 +02:00
Takashi Iwai
48f4b3a2ec ALSA: hda - Reduce verbs by node power-saves
The widget (node) power-saves restore the widget states at each
transition from D3 to D0 on each node.  This was added in the commit
[d545a57c5f84:ALSA: hda - Sync node attributes at resume from widget
power saving].  However, the test was rater false-positive; this
wasn't needed for any codecs.

Since the resync may take significant number of additional verbs to be
executed, it's better to reduce it.  Let's disable it for now again.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-05-20 06:49:37 +02:00
Arnd Bergmann
976fa9a3ac ALSA: sound/atmel/ac97c.c: remove unused variable
The recently added DT support for the ac97 driver is causing
a gcc warning:

sound/atmel/ac97c.c: In function 'atmel_ac97c_probe_dt':
sound/atmel/ac97c.c:919:29: warning: unused variable 'match' [-Wunused-variable]
  const struct of_device_id *match;

The variable is clearly unused, so we can remove it.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alexander Stein <alexanders83@web.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-05-20 06:18:25 +02:00
Filipe Manana
a96295965b Btrfs: fix racy system chunk allocation when setting block group ro
If while setting a block group read-only we end up allocating a system
chunk, through check_system_chunk(), we were not doing it while holding
the chunk mutex which is a problem if a concurrent chunk allocation is
happening, through do_chunk_alloc(), as it means both block groups can
end up using the same logical addresses and physical regions in the
device(s). So make sure we hold the chunk mutex.

Cc: stable@vger.kernel.org  # 4.0+
Fixes: 2f0810880f ("btrfs: delete chunk allocation attemp when
                      setting block group ro")

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
2015-05-19 18:04:17 -07:00
Mark Fasheh
2c2ed5aa01 btrfs: clear 'ret' in btrfs_check_shared() loop
btrfs_check_shared() is leaking a return value of '1' from
find_parent_nodes(). As a result, callers (in this case, extent_fiemap())
are told extents are shared when they are not. This in turn broke fiemap on
btrfs for kernels v3.18 and up.

The fix is simple - we just have to clear 'ret' after we are done processing
the results of find_parent_nodes().

It wasn't clear to me at first what was happening with return values in
btrfs_check_shared() and find_parent_nodes() - thanks to Josef for the help
on irc. I added documentation to both functions to make things more clear
for the next hacker who might come across them.

If we could queue this up for -stable too that would be great.

Signed-off-by: Mark Fasheh <mfasheh@suse.de>
Reviewed-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
2015-05-19 18:04:17 -07:00
Dave Airlie
f7c125a198 Merge branch 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes
Summary:
- Use generic function to get buffer count instead of specific one.
  In case of Exynos DRM, There was a special case which decides pixel
  format of a given buffer according to planer types, which is NV12M and NV12.
  However, NV12M doesn't exist in drm fourcc so it removes
  exynos_drm_format_num_buffers() specific to Exynos DRM and use a generic function,
  drm_format_num_planes() instead.
- Allow mixer driver to support NV21 format for Video processor.
  This format was already supported but we just missed DRM_FORMAT_NV21 case
  so this patch considers the case so that Mixer driver can handle it correctly.
- Add regression fix and some code cleanups.

* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: dp: Lower level of EDID read success message
  drm/exynos: cleanup exynos_drm_plane
  drm/exynos: 'win' is always unsigned
  drm/exynos: mixer: don't dump registers under spinlock
  drm/exynos: Consolidate return statements in fimd_bind()
  drm/exynos: Constify exynos_drm_crtc_ops
  drm/exynos: Fix build breakage on !DRM_EXYNOS_FIMD
  drm/exynos: mixer: Constify platform_device_id
  drm/exynos: mixer: cleanup pixelformat handling
  drm/exynos: mixer: also allow NV21 for the video processor
  drm/exynos: mixer: remove buffer count handling in vp_video_buffer()
  drm/exynos: plane: honor buffer offset for dma_addr
  drm/exynos: fb: use drm_format_num_planes to get buffer count
2015-05-20 09:22:00 +10:00
David S. Miller
892bd6291a This has just a single fix, for a WEP tailroom check
problem that leads to dropped frames.
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Merge tag 'mac80211-for-davem-2015-05-19' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

Johannes Berg says:

====================
This has just a single fix, for a WEP tailroom check
problem that leads to dropped frames.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-19 16:44:25 -04:00
Yuchung Cheng
b7b0ed910c tcp: don't over-send F-RTO probes
After sending the new data packets to probe (step 2), F-RTO may
incorrectly send more probes if the next ACK advances SND_UNA and
does not sack new packet. However F-RTO RFC 5682 probes at most
once. This bug may cause sender to always send new data instead of
repairing holes, inducing longer HoL blocking on the receiver for
the application.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-19 16:36:57 -04:00
Yuchung Cheng
da34ac7626 tcp: only undo on partial ACKs in CA_Loss
Undo based on TCP timestamps should only happen on ACKs that advance
SND_UNA, according to the Eifel algorithm in RFC 3522:

Section 3.2:

  (4) If the value of the Timestamp Echo Reply field of the
      acceptable ACK's Timestamps option is smaller than the
      value of RetransmitTS, then proceed to step (5),

Section Terminology:
   We use the term 'acceptable ACK' as defined in [RFC793].  That is an
   ACK that acknowledges previously unacknowledged data.

This is because upon receiving an out-of-order packet, the receiver
returns the last timestamp that advances RCV_NXT, not the current
timestamp of the packet in the DUPACK. Without checking the flag,
the DUPACK will cause tcp_packet_delayed() to return true and
tcp_try_undo_loss() will revert cwnd reduction.

Note that we check the condition in CA_Recovery already by only
calling tcp_try_undo_partial() if FLAG_SND_UNA_ADVANCED is set or
tcp_try_undo_recovery() if snd_una crosses high_seq.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-19 16:36:57 -04:00
Henning Rogge
33b4b015e1 net/ipv6/udp: Fix ipv6 multicast socket filter regression
Commit <5cf3d46192fc> ("udp: Simplify__udp*_lib_mcast_deliver")
simplified the filter for incoming IPv6 multicast but removed
the check of the local socket address and the UDP destination
address.

This patch restores the filter to prevent sockets bound to a IPv6
multicast IP to receive other UDP traffic link unicast.

Signed-off-by: Henning Rogge <hrogge@gmail.com>
Fixes: 5cf3d46192 ("udp: Simplify__udp*_lib_mcast_deliver")
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-19 16:34:43 -04:00
David Vrabel
77bb3dfdc0 xen/events: don't bind non-percpu VIRQs with percpu chip
A non-percpu VIRQ (e.g., VIRQ_CONSOLE) may be freed on a different
VCPU than it is bound to.  This can result in a race between
handle_percpu_irq() and removing the action in __free_irq() because
handle_percpu_irq() does not take desc->lock.  The interrupt handler
sees a NULL action and oopses.

Only use the percpu chip/handler for per-CPU VIRQs (like VIRQ_TIMER).

  # cat /proc/interrupts | grep virq
   40:      87246          0  xen-percpu-virq      timer0
   44:          0          0  xen-percpu-virq      debug0
   47:          0      20995  xen-percpu-virq      timer1
   51:          0          0  xen-percpu-virq      debug1
   69:          0          0   xen-dyn-virq      xen-pcpu
   74:          0          0   xen-dyn-virq      mce
   75:         29          0   xen-dyn-virq      hvc_console

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Cc: <stable@vger.kernel.org>
2015-05-19 19:55:36 +01:00
Linus Torvalds
1113cdfe7d NFS client bugfixes for Linux 4.1
Highlights include:
 
 - Fix a Linux-4.1 regression affecting stat()
 - Take an extra reference to fl->fl_file when running a setlk
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Merge tag 'nfs-for-4.1-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull two NFS client bugfixes from Trond Myklebust:
 "Highlights include:

   - fix a Linux-4.1 regression affecting stat()

   - take an extra reference to fl->fl_file when running a setlk"

* tag 'nfs-for-4.1-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  nfs: take extra reference to fl->fl_file when running a setlk
  nfs: stat(2) fails during cthon04 basic test5 on NFSv4.0
2015-05-19 11:20:48 -07:00
Linus Torvalds
416716ed39 powerpc fixes for 4.1 # 3
- THP/hugetlb fixes from Aneesh.
 - MCE fix from Daniel.
 - TOC fix from Anton.
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Merge tag 'powerpc-4.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux

Pull powerpc fixes from Michael Ellerman:

 - THP/hugetlb fixes from Aneesh.

 - MCE fix from Daniel.

 - TOC fix from Anton.

* tag 'powerpc-4.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux:
  powerpc: Align TOC to 256 bytes
  powerpc/mce: fix off by one errors in mce event handling
  powerpc/mm: Return NULL for not present hugetlb page
  powerpc/thp: Serialize pmd clear against a linux page table walk.
2015-05-19 11:19:49 -07:00
Linus Torvalds
68465bb08c pwm: Fixes for v4.1-rc5
A single fix to make the Pistachio driver respect the limits imposed by
 hardware.
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Merge tag 'pwm/for-4.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm fix from Thierry Reding:
 "A single fix to make the Pistachio driver respect the limits imposed
  by hardware"

* tag 'pwm/for-4.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  pwm: img: Impose upper and lower timebase steps value
2015-05-19 11:18:14 -07:00
Michal Hocko
1173ff09b9 watchdog: fix double lock in watchdog_nmi_enable_all
Commit ab992dc38f ("watchdog: Fix merge 'conflict'") has introduced an
obvious deadlock because of a typo.  watchdog_proc_mutex should be
unlocked on exit.

Thanks to Miroslav Benes who was staring at the code with me and noticed
this.

Signed-off-by: Michal Hocko <mhocko@suse.cz>
Duh-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-05-19 10:57:03 -07:00
Eric Dumazet
b5d721d761 inet: properly align icsk_ca_priv
tcp_illinois and upcoming tcp_cdg require 64bit alignment of
icsk_ca_priv

x86 does not care, but other architectures might.

Fixes: 05cbc0db03 ("ipv4: Create probe timer for tcp PMTU as per RFC4821")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Fan Du <fan.du@intel.com>
Acked-by: Fan Du <fan.du@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-19 11:08:00 -04:00
Naidu Tellapati
1e70897d0e pwm: img: Impose upper and lower timebase steps value
The PWM hardware on Pistachio platform has a maximum timebase steps
value to 255. To fix it, let's introduce a compatible-specific
data structure to contain the SoC-specific details and use it to
specify a maximum timebase.

Also, let's limit the minimum timebase to 16 steps, to allow a sane
range of duty cycle steps.

Fixes: 277bb6a29e ("pwm: Imagination Technologies PWM DAC driver")
Signed-off-by: Naidu Tellapati <naidu.tellapati@imgtec.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2015-05-19 16:07:40 +02:00
Krzysztof Kozlowski
b0f155ada4 drm/exynos: dp: Lower level of EDID read success message
Don't pollute the dmesg with EDID read success message as an error.
Printing as debug should be fine.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-05-19 22:50:55 +09:00
Tobias Jakobi
be083a002f drm/exynos: cleanup exynos_drm_plane
Remove the unused fields of struct exynos_drm_plane.

v2: Remove index_color as well, also unused (thanks Joonyoung).

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-05-19 22:50:54 +09:00
Tobias Jakobi
5b1d5bc690 drm/exynos: 'win' is always unsigned
The index for the hardware layer is always >=0. Previous
code that also used -1 as special index is now gone.

Also apply this to 'ch_enabled' (decon/fimd), since the
variable is on the same line (and is again always unsigned).

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-05-19 22:50:54 +09:00
Tobias Jakobi
c0734fbaf4 drm/exynos: mixer: don't dump registers under spinlock
mixer_regs_dump() was called in mixer_run(), which was called
under the register spinlock in mixer_graph_buffer() and
vp_video_buffer().

This would trigger a sysmmu pagefault with drm.debug=0xff because
of the large delay caused by the register dumping.

To keep consistency also move register dumping out of mixer_stop(),
which is the counterpart to mixer_run().

Kernel dump:
[  131.296529] [drm:mixer_win_commit] win: 2
[  131.300693] [drm:mixer_regs_dump] MXR_STATUS = 00000081
[  131.305888] [drm:mixer_regs_dump] MXR_CFG = 000007d5
[  131.310835] [drm:mixer_regs_dump] MXR_INT_EN = 00000000
[  131.316043] [drm:mixer_regs_dump] MXR_INT_STATUS = 00000900
[  131.321598] [drm:mixer_regs_dump] MXR_LAYER_CFG = 00000321
[  131.327066] [drm:mixer_regs_dump] MXR_VIDEO_CFG = 00000000
[  131.332535] [drm:mixer_regs_dump] MXR_GRAPHIC0_CFG = 00310700
[  131.338263] [drm:mixer_regs_dump] MXR_GRAPHIC0_BASE = 20c00000
[  131.344079] [drm:mixer_regs_dump] MXR_GRAPHIC0_SPAN = 00000780
[  131.349895] [drm:mixer_regs_dump] MXR_GRAPHIC0_WH = 07800438
[  131.355537] [drm:mixer_regs_dump] MXR_GRAPHIC0_SXY = 00000000
[  131.361265] [drm:mixer_regs_dump] MXR_GRAPHIC0_DXY = 00000000
[  131.366994] [drm:mixer_regs_dump] MXR_GRAPHIC1_CFG = 00000000
[  131.372723] [drm:mixer_regs_dump] MXR_GRAPHIC1_BASE = 00000000
[  131.378539] [drm:mixer_regs_dump] MXR_GRAPHIC1_SPAN = 00000000
[  131.384354] [drm:mixer_regs_dump] MXR_GRAPHIC1_WH = 00000000
[  131.389996] [drm:mixer_regs_dump] MXR_GRAPHIC1_SXY = 00000000
[  131.395725] [drm:mixer_regs_dump] MXR_GRAPHIC1_DXY = 00000000
[  131.401486] PAGE FAULT occurred at 0x0 by 12e20000.sysmmu(Page table base: 0x6d990000)
[  131.409353]  Lv1 entry: 0x6e0f2401
[  131.412753] ------------[ cut here ]------------
[  131.417339] kernel BUG at drivers/iommu/exynos-iommu.c:358!
[  131.422894] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM
[  131.428709] Modules linked in: ecb bridge stp llc bnep btrfs xor xor_neon zlib_inflate zlib_deflate raid6_pq btusb bluetooth usb_storage s5p_jpeg
videobuf2_dma_contig videobuf2_memops v4l2_mem2mem videobuf2_core
[  131.447461] CPU: 0 PID: 2418 Comm: lt-modetest Tainted: G        W       4.0.1-debug+ #3
[  131.455530] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[  131.461607] task: ee194100 ti: ec4fe000 task.ti: ec4fe000
[  131.466995] PC is at exynos_sysmmu_irq+0x2a0/0x2a8
[  131.471766] LR is at vprintk_emit+0x268/0x594
[  131.476103] pc : [<c02781a4>]    lr : [<c00650d0>]    psr: a00001d3
[  131.476103] sp : ec4ff9d8  ip : 00000000  fp : ec4ffa14
[  131.487559] r10: ffffffda  r9 : ee206e28  r8 : ee2d1a10
[  131.492767] r7 : 00000000  r6 : 00000000  r5 : 00000000  r4 : ee206e10
[  131.499277] r3 : c06fca20  r2 : 00000000  r1 : 00000000  r0 : ee28be00
[  131.505788] Flags: NzCv  IRQs off  FIQs off  Mode SVC_32  ISA ARM  Segment user
[  131.513079] Control: 10c5387d  Table: 6c72404a  DAC: 00000015
[  131.518808] Process lt-modetest (pid: 2418, stack limit = 0xec4fe218)
[  131.525231] Stack: (0xec4ff9d8 to 0xec500000)
[  131.529571] f9c0:                                                       ec4ff9e4 c03a0c40
[  131.537732] f9e0: bbfa6e35 6d990000 6d161c3d ee20a900 ee04a7e0 00000028 ee007000 00000000
[  131.545891] fa00: 00000000 c06fb1fc ec4ffa5c ec4ffa18 c0066a34 c0277f10 ee257664 0000000b
[  131.554050] fa20: ec4ffa5c c06fafbb ee04a780 c06fb1e8 00000000 ee04a780 ee04a7e0 ee20a900
[  131.562209] fa40: ee007000 00000015 ec4ffb48 ee008000 ec4ffa7c ec4ffa60 c0066c90 c00669e0
[  131.570369] fa60: 00020000 ee04a780 ee04a7e0 00001000 ec4ffa94 ec4ffa80 c0069c6c c0066c58
[  131.578528] fa80: 00000028 ee004450 ec4ffaac ec4ffa98 c0066028 c0069bac 000000a0 c06e19b4
[  131.586687] faa0: ec4ffad4 ec4ffab0 c0223678 c0066000 c02235dc 00000015 00000000 00000015
[  131.594846] fac0: ec4ffc80 00000001 ec4ffaec ec4ffad8 c0066028 c02235e8 00000089 c06bfc54
[  131.603005] fae0: ec4ffb1c ec4ffaf0 c006633c c0066000 ec4ffb48 f002000c 00000025 00000015
[  131.611165] fb00: c06c680c ec4ffb48 f0020000 ee008000 ec4ffb44 ec4ffb20 c000867c c00662c4
[  131.619324] fb20: c02046ac 60000153 ffffffff ec4ffb7c 00000000 00000101 ec4ffbb4 ec4ffb48
[  131.627483] fb40: c0013240 c0008650 00000001 ee257508 00000002 00000001 ee257504 ee257508
[  131.635642] fb60: 00000000 c06bf27c 00000000 00000101 ee008000 ec4ffbb4 00000000 ec4ffb90
[  131.643802] fb80: c002e124 c02046ac 60000153 ffffffff c002e09c 00000000 c06c6080 00000283
[  131.651960] fba0: 00000001 c06fb1ac ec4ffc0c ec4ffbb8 c002d690 c002e0a8 ee78d080 ee008000
[  131.660120] fbc0: 00400000 c04eb3b0 ffff7c44 c06c6100 c06fdac0 0000000a c06bf2f0 c06c6080
[  131.668279] fbe0: c06bfc54 c06bfc54 00000000 00000025 00000000 00000001 ec4ffc80 ee008000
[  131.676438] fc00: ec4ffc24 ec4ffc10 c002dbb8 c002d564 00000089 c06bfc54 ec4ffc54 ec4ffc28
[  131.684597] fc20: c0066340 c002dafc ec4ffc80 f002000c 0000001c 0000000c c06c680c ec4ffc80
[  131.692757] fc40: f0020000 00000080 ec4ffc7c ec4ffc58 c000867c c00662c4 c04e6624 60000053
[  131.700916] fc60: ffffffff ec4ffcb4 c072df54 ee22d010 ec4ffcdc ec4ffc80 c0013240 c0008650
[  131.709075] fc80: ee22d664 ee194100 00000000 ec4fe000 60000053 00000400 00000002 ee22d420
[  131.717234] fca0: c072df54 ee22d010 00000080 ec4ffcdc ec4ffcc8 ec4ffcc8 c04e6620 c04e6624
[  131.725393] fcc0: 60000053 ffffffff ec4fe000 c072df54 ec4ffd34 ec4ffce0 c02b64d0 c04e6618
[  131.733552] fce0: ec4ffcf8 00000000 00000000 60000053 00010000 00010000 00000000 200cb000
[  131.741712] fd00: 20080000 ee22d664 00000001 ee256000 ee261400 ee22d420 00000080 00000080
[  131.749871] fd20: ee256000 00000280 ec4ffd74 ec4ffd38 c02a8844 c02b5fec 00000080 00000280
[  131.758030] fd40: 000001e0 00000000 00000000 00000280 000001e0 ee22d220 01e00000 00000002
[  131.766189] fd60: ee22d420 ee261400 ec4ffdbc ec4ffd78 c0293cbc c02a87a4 00000080 00000280
[  131.774348] fd80: 000001e0 00000000 00000000 02800000 01e00000 ee261400 ee22d460 ee261400
[  131.782508] fda0: ee22d420 00000000 01e00000 000001e0 ec4ffe24 ec4ffdc0 c0297800 c0293b24
[  131.790667] fdc0: 00000080 00000280 000001e0 00000000 00000000 02800000 01e00000 ec4ffdf8
[  131.798826] fde0: c028db00 00000080 00000080 ee256000 02800000 00000000 ec4ffe24 c06c6448
[  131.806985] fe00: c072df54 000000b7 ee013800 ec4ffe54 edbf7300 ec4ffe54 ec4fff04 ec4ffe28
[  131.815145] fe20: c028a848 c029768c 00000001 c06195d8 ec4ffe5c ec4ffe40 c0297680 c0521f6c
[  131.823304] fe40: 00000030 bed45d38 00000030 c03064b7 ec4ffe8c 00000011 00000015 00000022
[  131.831463] fe60: 00000000 00000080 00000080 00000280 000001e0 00000000 00000000 01e00000
[  131.839622] fe80: 02800000 00000000 00000000 0004b000 00000000 00000000 c00121e4 c0011080
[  131.847781] fea0: c00110a4 00000000 00000000 00000000 ec4ffeec ec4ffec0 c00110f0 c00121cc
[  131.855940] fec0: 00000000 c00e7fec ec4ffeec ec4ffed8 c004af2c dc8ba201 edae4fc0 edbf7000
[  131.864100] fee0: edbf7000 00000003 bed45d38 00000003 bed45d38 ee3f2040 ec4fff7c ec4fff08
[  131.872259] ff00: c010b62c c028a684 edae4fc0 00000000 00000000 b6666000 ec40d108 edae4fc4
[  131.880418] ff20: ec4fff6c ec4fff30 c00e7fec c02207b0 000001f9 00000000 edae5008 ec40d110
[  131.888577] ff40: 00070800 edae5008 edae4fc0 00070800 b6666000 edbf7000 edbf7000 c03064b7
[  131.896736] ff60: bed45d38 00000003 ec4fe000 00000000 ec4fffa4 ec4fff80 c010b84c c010b208
[  131.904896] ff80: 00000022 00000000 bed45d38 c03064b7 00000036 c000ede4 00000000 ec4fffa8
[  131.913055] ffa0: c000ec40 c010b81c 00000000 bed45d38 00000003 c03064b7 bed45d38 00000022
[  131.921214] ffc0: 00000000 bed45d38 c03064b7 00000036 00000080 00000080 00000000 000001e0
[  131.929373] ffe0: b6da4064 bed45d1c b6d98968 b6e8082c 60000050 00000003 00000000 00000000
[  131.937529] Backtrace:
[  131.939967] [<c0277f04>] (exynos_sysmmu_irq) from [<c0066a34>] (handle_irq_event_percpu+0x60/0x278)
[  131.948988]  r10:c06fb1fc r9:00000000 r8:00000000 r7:ee007000 r6:00000028 r5:ee04a7e0
[  131.956799]  r4:ee20a900
[  131.959320] [<c00669d4>] (handle_irq_event_percpu) from [<c0066c90>] (handle_irq_event+0x44/0x64)
[  131.968170]  r10:ee008000 r9:ec4ffb48 r8:00000015 r7:ee007000 r6:ee20a900 r5:ee04a7e0
[  131.975982]  r4:ee04a780
[  131.978504] [<c0066c4c>] (handle_irq_event) from [<c0069c6c>] (handle_level_irq+0xcc/0x144)
[  131.986832]  r6:00001000 r5:ee04a7e0 r4:ee04a780 r3:00020000
[  131.992478] [<c0069ba0>] (handle_level_irq) from [<c0066028>] (generic_handle_irq+0x34/0x44)
[  132.000894]  r5:ee004450 r4:00000028
[  132.004459] [<c0065ff4>] (generic_handle_irq) from [<c0223678>] (combiner_handle_cascade_irq+0x9c/0x108)
[  132.013914]  r4:c06e19b4 r3:000000a0
[  132.017476] [<c02235dc>] (combiner_handle_cascade_irq) from [<c0066028>] (generic_handle_irq+0x34/0x44)
[  132.026847]  r8:00000001 r7:ec4ffc80 r6:00000015 r5:00000000 r4:00000015 r3:c02235dc
[  132.034576] [<c0065ff4>] (generic_handle_irq) from [<c006633c>] (__handle_domain_irq+0x84/0xf0)
[  132.043252]  r4:c06bfc54 r3:00000089
[  132.046815] [<c00662b8>] (__handle_domain_irq) from [<c000867c>] (gic_handle_irq+0x38/0x70)
[  132.055144]  r10:ee008000 r9:f0020000 r8:ec4ffb48 r7:c06c680c r6:00000015 r5:00000025
[  132.062956]  r4:f002000c r3:ec4ffb48
[  132.066520] [<c0008644>] (gic_handle_irq) from [<c0013240>] (__irq_svc+0x40/0x74)
[  132.073980] Exception stack(0xec4ffb48 to 0xec4ffb90)
[  132.079016] fb40:                   00000001 ee257508 00000002 00000001 ee257504 ee257508
[  132.087176] fb60: 00000000 c06bf27c 00000000 00000101 ee008000 ec4ffbb4 00000000 ec4ffb90
[  132.095333] fb80: c002e124 c02046ac 60000153 ffffffff
[  132.100367]  r9:00000101 r8:00000000 r7:ec4ffb7c r6:ffffffff r5:60000153 r4:c02046ac
[  132.108098] [<c002e09c>] (tasklet_hi_action) from [<c002d690>] (__do_softirq+0x138/0x38c)
[  132.116251]  r8:c06fb1ac r7:00000001 r6:00000283 r5:c06c6080 r4:00000000 r3:c002e09c
[  132.123980] [<c002d558>] (__do_softirq) from [<c002dbb8>] (irq_exit+0xc8/0x104)
[  132.131268]  r10:ee008000 r9:ec4ffc80 r8:00000001 r7:00000000 r6:00000025 r5:00000000
[  132.139080]  r4:c06bfc54
[  132.141600] [<c002daf0>] (irq_exit) from [<c0066340>] (__handle_domain_irq+0x88/0xf0)
[  132.149409]  r4:c06bfc54 r3:00000089
[  132.152971] [<c00662b8>] (__handle_domain_irq) from [<c000867c>] (gic_handle_irq+0x38/0x70)
[  132.161300]  r10:00000080 r9:f0020000 r8:ec4ffc80 r7:c06c680c r6:0000000c r5:0000001c
[  132.169112]  r4:f002000c r3:ec4ffc80
[  132.172675] [<c0008644>] (gic_handle_irq) from [<c0013240>] (__irq_svc+0x40/0x74)
[  132.180137] Exception stack(0xec4ffc80 to 0xec4ffcc8)
[  132.185173] fc80: ee22d664 ee194100 00000000 ec4fe000 60000053 00000400 00000002 ee22d420
[  132.193332] fca0: c072df54 ee22d010 00000080 ec4ffcdc ec4ffcc8 ec4ffcc8 c04e6620 c04e6624
[  132.201489] fcc0: 60000053 ffffffff
[  132.204961]  r9:ee22d010 r8:c072df54 r7:ec4ffcb4 r6:ffffffff r5:60000053 r4:c04e6624
[  132.212694] [<c04e660c>] (_raw_spin_unlock_irqrestore) from [<c02b64d0>] (mixer_win_commit+0x4f0/0xcc8)
[  132.222060]  r4:c072df54 r3:ec4fe000
[  132.225625] [<c02b5fe0>] (mixer_win_commit) from [<c02a8844>] (exynos_update_plane+0xac/0xb8)
[  132.234126]  r10:00000280 r9:ee256000 r8:00000080 r7:00000080 r6:ee22d420 r5:ee261400
[  132.241937]  r4:ee256000
[  132.244461] [<c02a8798>] (exynos_update_plane) from [<c0293cbc>] (__setplane_internal+0x1a4/0x2c0)
[  132.253395]  r7:ee261400 r6:ee22d420 r5:00000002 r4:01e00000
[  132.259041] [<c0293b18>] (__setplane_internal) from [<c0297800>] (drm_mode_setplane+0x180/0x244)
[  132.267804]  r9:000001e0 r8:01e00000 r7:00000000 r6:ee22d420 r5:ee261400 r4:ee22d460
[  132.275535] [<c0297680>] (drm_mode_setplane) from [<c028a848>] (drm_ioctl+0x1d0/0x58c)
[  132.283428]  r10:ec4ffe54 r9:edbf7300 r8:ec4ffe54 r7:ee013800 r6:000000b7 r5:c072df54
[  132.291240]  r4:c06c6448
[  132.293763] [<c028a678>] (drm_ioctl) from [<c010b62c>] (do_vfs_ioctl+0x430/0x614)
[  132.301222]  r10:ee3f2040 r9:bed45d38 r8:00000003 r7:bed45d38 r6:00000003 r5:edbf7000
[  132.309034]  r4:edbf7000
[  132.311555] [<c010b1fc>] (do_vfs_ioctl) from [<c010b84c>] (SyS_ioctl+0x3c/0x64)
[  132.318842]  r10:00000000 r9:ec4fe000 r8:00000003 r7:bed45d38 r6:c03064b7 r5:edbf7000
[  132.326654]  r4:edbf7000
[  132.329176] [<c010b810>] (SyS_ioctl) from [<c000ec40>] (ret_fast_syscall+0x0/0x34)
[  132.336723]  r8:c000ede4 r7:00000036 r6:c03064b7 r5:bed45d38 r4:00000000 r3:00000022
[  132.344451] Code: e3130002 0affffaf eb09a67d eaffffad (e7f001f2)
[  132.350528] ---[ end trace d428689b94df895c ]---
[  132.355126] Kernel panic - not syncing: Fatal exception in interrupt
[  132.361465] CPU2: stopping
[  132.364155] CPU: 2 PID: 0 Comm: swapper/2 Tainted: G      D W       4.0.1-debug+ #3
[  132.371791] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[  132.377866] Backtrace:
[  132.380304] [<c0012484>] (dump_backtrace) from [<c001269c>] (show_stack+0x18/0x1c)
[  132.387849]  r6:c06e158c r5:ffffffff r4:00000000 r3:dc8ba201
[  132.393497] [<c0012684>] (show_stack) from [<c04dfb94>] (dump_stack+0x88/0xc8)
[  132.400698] [<c04dfb0c>] (dump_stack) from [<c0014894>] (handle_IPI+0x1c8/0x2c4)
[  132.408073]  r6:c06bfc54 r5:c06bfc54 r4:00000005 r3:ee0b0000
[  132.413718] [<c00146cc>] (handle_IPI) from [<c00086b0>] (gic_handle_irq+0x6c/0x70)
[  132.421267]  r9:f0028000 r8:ee0b1f48 r7:c06c680c r6:fffffff5 r5:00000005 r4:f002800c
[  132.428995] [<c0008644>] (gic_handle_irq) from [<c0013240>] (__irq_svc+0x40/0x74)
[  132.436457] Exception stack(0xee0b1f48 to 0xee0b1f90)
[  132.441493] 1f40:                   00000001 00000000 00000000 c00206c0 c06c6518 c04eb3a4
[  132.449653] 1f60: 00000000 00000000 c06c0dc0 00000001 c06fb774 ee0b1f9c ee0b1fa0 ee0b1f90
[  132.457811] 1f80: c000f82c c000f830 600f0053 ffffffff
[  132.462844]  r9:00000001 r8:c06c0dc0 r7:ee0b1f7c r6:ffffffff r5:600f0053 r4:c000f830
[  132.470575] [<c000f7f0>] (arch_cpu_idle) from [<c005b6e8>] (cpu_startup_entry+0x318/0x4ec)
[  132.478818] [<c005b3d0>] (cpu_startup_entry) from [<c00144d0>] (secondary_start_kernel+0xf4/0x100)
[  132.487755]  r7:c06fd440
[  132.490279] [<c00143dc>] (secondary_start_kernel) from [<40008744>] (0x40008744)
[  132.497651]  r4:6e09006a r3:c000872c
[  132.501210] CPU3: stopping
[  132.503904] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G      D W       4.0.1-debug+ #3
[  132.511539] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[  132.517614] Backtrace:
[  132.520051] [<c0012484>] (dump_backtrace) from [<c001269c>] (show_stack+0x18/0x1c)
[  132.527597]  r6:c06e158c r5:ffffffff r4:00000000 r3:dc8ba201
[  132.533243] [<c0012684>] (show_stack) from [<c04dfb94>] (dump_stack+0x88/0xc8)
[  132.540446] [<c04dfb0c>] (dump_stack) from [<c0014894>] (handle_IPI+0x1c8/0x2c4)
[  132.547820]  r6:c06bfc54 r5:c06bfc54 r4:00000005 r3:ee0b2000
[  132.553466] [<c00146cc>] (handle_IPI) from [<c00086b0>] (gic_handle_irq+0x6c/0x70)
[  132.561014]  r9:f002c000 r8:ee0b3f48 r7:c06c680c r6:fffffff5 r5:00000005 r4:f002c00c
[  132.568743] [<c0008644>] (gic_handle_irq) from [<c0013240>] (__irq_svc+0x40/0x74)
[  132.576205] Exception stack(0xee0b3f48 to 0xee0b3f90)
[  132.581241] 3f40:                   00000001 00000000 00000000 c00206c0 c06c6518 c04eb3a4
[  132.589401] 3f60: 00000000 00000000 c06c0dc0 00000001 c06fb774 ee0b3f9c ee0b3fa0 ee0b3f90
[  132.597558] 3f80: c000f82c c000f830 600f0053 ffffffff
[  132.602591]  r9:00000001 r8:c06c0dc0 r7:ee0b3f7c r6:ffffffff r5:600f0053 r4:c000f830
[  132.610321] [<c000f7f0>] (arch_cpu_idle) from [<c005b6e8>] (cpu_startup_entry+0x318/0x4ec)
[  132.618566] [<c005b3d0>] (cpu_startup_entry) from [<c00144d0>] (secondary_start_kernel+0xf4/0x100)
[  132.627503]  r7:c06fd440
[  132.630023] [<c00143dc>] (secondary_start_kernel) from [<40008744>] (0x40008744)
[  132.637399]  r4:6e09006a r3:c000872c
[  132.640958] CPU1: stopping
[  132.643651] CPU: 1 PID: 0 Comm: swapper/1 Tainted: G      D W       4.0.1-debug+ #3
[  132.651287] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[  132.657362] Backtrace:
[  132.659799] [<c0012484>] (dump_backtrace) from [<c001269c>] (show_stack+0x18/0x1c)
[  132.667344]  r6:c06e158c r5:ffffffff r4:00000000 r3:dc8ba201
[  132.672991] [<c0012684>] (show_stack) from [<c04dfb94>] (dump_stack+0x88/0xc8)
[  132.680194] [<c04dfb0c>] (dump_stack) from [<c0014894>] (handle_IPI+0x1c8/0x2c4)
[  132.687569]  r6:c06bfc54 r5:c06bfc54 r4:00000005 r3:ee0ae000
[  132.693214] [<c00146cc>] (handle_IPI) from [<c00086b0>] (gic_handle_irq+0x6c/0x70)
[  132.700762]  r9:f0024000 r8:ee0aff48 r7:c06c680c r6:fffffff5 r5:00000005 r4:f002400c
[  132.708491] [<c0008644>] (gic_handle_irq) from [<c0013240>] (__irq_svc+0x40/0x74)
[  132.715953] Exception stack(0xee0aff48 to 0xee0aff90)
[  132.720989] ff40:                   00000001 00000000 00000000 c00206c0 c06c6518 c04eb3a4
[  132.729149] ff60: 00000000 00000000 c06c0dc0 00000001 c06fb774 ee0aff9c ee0affa0 ee0aff90
[  132.737306] ff80: c000f82c c000f830 60070053 ffffffff
[  132.742339]  r9:00000001 r8:c06c0dc0 r7:ee0aff7c r6:ffffffff r5:60070053 r4:c000f830
[  132.750069] [<c000f7f0>] (arch_cpu_idle) from [<c005b6e8>] (cpu_startup_entry+0x318/0x4ec)
[  132.758314] [<c005b3d0>] (cpu_startup_entry) from [<c00144d0>] (secondary_start_kernel+0xf4/0x100)
[  132.767251]  r7:c06fd440
[  132.769772] [<c00143dc>] (secondary_start_kernel) from [<40008744>] (0x40008744)
[  132.777146]  r4:6e09006a r3:c000872c
[  132.780709] ---[ end Kernel panic - not syncing: Fatal exception in interrupt

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-05-19 22:50:53 +09:00
Krzysztof Kozlowski
362edccc7a drm/exynos: Consolidate return statements in fimd_bind()
Simplify the code and remove superfluous return statement. Just return
the result of fimd_iommu_attach_devices().

Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2015-05-19 22:50:53 +09:00