firefly-linux-kernel-4.4.55.git
9 years agovirtio: make del_vqs idempotent
Michael S. Tsirkin [Sun, 4 Jan 2015 15:21:58 +0000 (17:21 +0200)]
virtio: make del_vqs idempotent

Our code calls del_vqs multiple times, assuming
it's idempotent.

commit 3ec7a77bb3089bb01032fdbd958eb5c29da58b49
    virtio_pci: free up vq->priv
broke this assumption, by adding kfree there,
so multiple calls cause double free.

Fix it up.

Fixes: 3ec7a77bb3089bb01032fdbd958eb5c29da58b49
Reported-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
9 years agobatman-adv: fix potential TT client + orig-node memory leak
Linus Lüssing [Sat, 13 Dec 2014 22:32:15 +0000 (23:32 +0100)]
batman-adv: fix potential TT client + orig-node memory leak

This patch fixes a potential memory leak which can occur once an
originator times out. On timeout the according global translation table
entry might not get purged correctly. Furthermore, the non purged TT
entry will cause its orig-node to leak, too. Which additionally can lead
to the new multicast optimization feature not kicking in because of a
therefore bogus counter.

In detail: The batadv_tt_global_entry->orig_list holds the reference to
the orig-node. Usually this reference is released after
BATADV_PURGE_TIMEOUT through: _batadv_purge_orig()->
batadv_purge_orig_node()->batadv_update_route()->_batadv_update_route()->
batadv_tt_global_del_orig() which purges this global tt entry and
releases the reference to the orig-node.

However, if between two batadv_purge_orig_node() calls the orig-node
timeout grew to 2*BATADV_PURGE_TIMEOUT then this call path isn't
reached. Instead the according orig-node is removed from the
originator hash in _batadv_purge_orig(), the batadv_update_route()
part is skipped and won't be reached anymore.

Fixing the issue by moving batadv_tt_global_del_orig() out of the rcu
callback.

Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Acked-by: Antonio Quartulli <antonio@meshcoding.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
9 years agobatman-adv: fix multicast counter when purging originators
Linus Lüssing [Thu, 30 Oct 2014 04:40:47 +0000 (05:40 +0100)]
batman-adv: fix multicast counter when purging originators

When purging an orig_node we should only decrease counter tracking the
number of nodes without multicast optimizations support if it was
increased through this orig_node before.

A not yet quite initialized orig_node (meaning it did not have its turn
in the mcast-tvlv handler so far) which gets purged would not adhere to
this and will lead to a counter imbalance.

Fixing this by adding a check whether the orig_node is mcast-initalized
before decreasing the counter in the mcast-orig_node-purging routine.

Introduced by 60432d756cf06e597ef9da511402dd059b112447
("batman-adv: Announce new capability via multicast TVLV")

Reported-by: Tobias Hachmer <tobias@hachmer.de>
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
9 years agobatman-adv: fix counter for multicast supporting nodes
Linus Lüssing [Thu, 30 Oct 2014 04:40:46 +0000 (05:40 +0100)]
batman-adv: fix counter for multicast supporting nodes

A miscounting of nodes having multicast optimizations enabled can lead
to multicast packet loss in the following scenario:

If the first OGM a node receives from another one has no multicast
optimizations support (no multicast tvlv) then we are missing to
increase the counter. This potentially leads to the wrong assumption
that we could safely use multicast optimizations.

Fixings this by increasing the counter if the initial OGM has the
multicast TVLV unset, too.

Introduced by 60432d756cf06e597ef9da511402dd059b112447
("batman-adv: Announce new capability via multicast TVLV")

Reported-by: Tobias Hachmer <tobias@hachmer.de>
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
9 years agobatman-adv: fix lock class for decoding hash in network-coding.c
Martin Hundebøll [Tue, 11 Nov 2014 15:22:23 +0000 (16:22 +0100)]
batman-adv: fix lock class for decoding hash in network-coding.c

batadv_has_set_lock_class() is called with the wrong hash table as first
argument (probably due to a copy-paste error), which leads to false
positives when running with lockdep.

Introduced-by: 612d2b4fe0a1ff2f8389462a6f8be34e54124c05
("batman-adv: network coding - save overheard and tx packets for decoding")

Signed-off-by: Martin Hundebøll <martin@hundeboll.net>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
9 years agobatman-adv: fix delayed foreign originator recognition
Linus Lüssing [Thu, 30 Oct 2014 05:23:40 +0000 (06:23 +0100)]
batman-adv: fix delayed foreign originator recognition

Currently it can happen that the reception of an OGM from a new
originator is not being accepted. More precisely it can happen that
an originator struct gets allocated and initialized
(batadv_orig_node_new()), even the TQ gets calculated and set correctly
(batadv_iv_ogm_calc_tq()) but still the periodic orig_node purging
thread will decide to delete it if it has a chance to jump between
these two function calls.

This is because batadv_orig_node_new() initializes the last_seen value
to zero and its caller (batadv_iv_ogm_orig_get()) makes it visible to
other threads by adding it to the hash table already.
batadv_iv_ogm_calc_tq() will set the last_seen variable to the correct,
current time a few lines later but if the purging thread jumps in between
that it will think that the orig_node timed out and will wrongly
schedule it for deletion already.

If the purging interval is the same as the originator interval (which is
the default: 1 second), then this game can continue for several rounds
until the random OGM jitter added enough difference between these
two (in tests, two to about four rounds seemed common).

Fixing this by initializing the last_seen variable of an orig_node
to the current time before adding it to the hash table.

Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
9 years agobatman-adv: fix and simplify condition when bonding should be used
Simon Wunderlich [Wed, 13 Aug 2014 12:26:56 +0000 (14:26 +0200)]
batman-adv: fix and simplify condition when bonding should be used

The current condition actually does NOT consider bonding when the
interface the packet came in from is the soft interface, which is the
opposite of what it should do (and the comment describes). Fix that and
slightly simplify the condition.

Reported-by: Ray Gibson <booray@gmail.com>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
9 years agoLinux 3.19-rc3
Linus Torvalds [Tue, 6 Jan 2015 01:05:20 +0000 (17:05 -0800)]
Linux 3.19-rc3

9 years agoMerge tag 'powerpc-3.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux
Linus Torvalds [Mon, 5 Jan 2015 22:49:02 +0000 (14:49 -0800)]
Merge tag 'powerpc-3.19-3' of git://git./linux/kernel/git/mpe/linux

Pull powerpc fixes from Michael Ellerman:

 - Wire up sys_execveat(). Tested on 32 & 64 bit.

 - Fix for kdump on LE systems with cpus hot unplugged.

 - Revert Anton's fix for "kernel BUG at kernel/smpboot.c:134!", this
   broke other platforms, we'll do a proper fix for 3.20.

* tag 'powerpc-3.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux:
  Revert "powerpc: Secondary CPUs must set cpu_callin_map after setting active and online"
  powerpc/kdump: Ignore failure in enabling big endian exception during crash
  powerpc: Wire up sys_execveat() syscall

9 years agoACPI / processor: Rename acpi_(un)map_lsapic() to acpi_(un)map_cpu()
Hanjun Guo [Sun, 4 Jan 2015 10:55:03 +0000 (18:55 +0800)]
ACPI / processor: Rename acpi_(un)map_lsapic() to acpi_(un)map_cpu()

acpi_map_lsapic() will allocate a logical CPU number and map it to
physical CPU id (such as APIC id) for the hot-added CPU, it will also
do some mapping for NUMA node id and etc, acpi_unmap_lsapic() will
do the reverse.

We can see that the name of the function is a little bit confusing and
arch (IA64) dependent so rename them as acpi_(un)map_cpu() to make arch
agnostic and explicit.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
9 years agoACPI / processor: Convert apic_id to phys_id to make it arch agnostic
Hanjun Guo [Sun, 4 Jan 2015 10:55:02 +0000 (18:55 +0800)]
ACPI / processor: Convert apic_id to phys_id to make it arch agnostic

apic_id in MADT table is the CPU hardware id which identify
it self in the system for x86 and ia64, OSPM will use it for
SMP init to map APIC ID to logical cpu number in the early
boot, when the DSDT/SSDT (ACPI namespace) is scanned later, the
ACPI processor driver is probed and the driver will use acpi_id
in DSDT to get the apic_id, then map to the logical cpu number
which is needed by the processor driver.

Before ACPI 5.0, only x86 and ia64 were supported in ACPI spec,
so apic_id is used both in arch code and ACPI core which is
pretty fine. Since ACPI 5.0, ARM is supported by ACPI and
APIC is not available on ARM, this will confuse people when
apic_id is both used by x86 and ARM in one function.

So convert apic_id to phys_id (which is the original meaning)
in ACPI processor dirver to make it arch agnostic, but leave the
arch dependent code unchanged, no functional change.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
9 years agoMerge tag 'please-pull-syscall' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Mon, 5 Jan 2015 22:31:20 +0000 (14:31 -0800)]
Merge tag 'please-pull-syscall' of git://git./linux/kernel/git/aegl/linux

Pull ia64 fixlet from Tony Luck:
 "Add execveat syscall"

* tag 'please-pull-syscall' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  [IA64] Enable execveat syscall for ia64

9 years agoACPI / PM: Fix PM initialization for devices that are not present
Rafael J. Wysocki [Thu, 1 Jan 2015 22:38:28 +0000 (23:38 +0100)]
ACPI / PM: Fix PM initialization for devices that are not present

If an ACPI device object whose _STA returns 0 (not present and not
functional) has _PR0 or _PS0, its power_manageable flag will be set
and acpi_bus_init_power() will return 0 for it.  Consequently, if
such a device object is passed to the ACPI device PM functions, they
will attempt to carry out the requested operation on the device,
although they should not do that for devices that are not present.

To fix that problem make acpi_bus_init_power() return an error code
for devices that are not present which will cause power_manageable to
be cleared for them as appropriate in acpi_bus_get_power_flags().
However, the lists of power resources should not be freed for the
device in that case, so modify acpi_bus_get_power_flags() to keep
those lists even if acpi_bus_init_power() returns an error.
Accordingly, when deciding whether or not the lists of power
resources need to be freed, acpi_free_power_resources_lists()
should check the power.flags.power_resources flag instead of
flags.power_manageable, so make that change too.

Furthermore, if acpi_bus_attach() sees that flags.initialized is
unset for the given device, it should reset the power management
settings of the device and re-initialize them from scratch instead
of relying on the previous settings (the device may have appeared
after being not present previously, for example), so make it use
the 'valid' flag of the D0 power state as the initial value of
flags.power_manageable for it and call acpi_bus_init_power() to
discover its current power state.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: 3.10+ <stable@vger.kernel.org> # 3.10+
9 years ago[IA64] Enable execveat syscall for ia64
Tony Luck [Mon, 5 Jan 2015 19:25:19 +0000 (11:25 -0800)]
[IA64] Enable execveat syscall for ia64

See commit 51f39a1f0cea1cacf8c787f652f26dfee9611874
    syscalls: implement execveat() system call

Signed-off-by: Tony Luck <tony.luck@intel.com>
9 years agoqla2xxx: fix busy wait regression
Bruno Prémont [Fri, 19 Dec 2014 09:29:16 +0000 (10:29 +0100)]
qla2xxx: fix busy wait regression

Commit e05fe29248 (qla2xxx: Honor FCP_RSP retry delay timer field.)
causes systems to busy-wait for about 3 minutes after boot prior to
detecting SAN disks.

During this wait period one kworker is running full-time
(though /proc/<pid>/stack has no useful data). Another kworker is
waiting for IO to complete during that whole time period.

Looking at drivers/scsi/qla2xxx/qla_os.c, fcport->retry_delay_timestamp
has a special value of 0 though that 0 value forces system to wait when
jiffies is very large value (e.g. 4294952605 - "negative" value when
signed on 32bit systems).

Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
9 years agodrm/radeon: integer underflow in radeon_cp_dispatch_texture()
Dan Carpenter [Tue, 23 Dec 2014 09:56:49 +0000 (12:56 +0300)]
drm/radeon: integer underflow in radeon_cp_dispatch_texture()

The test:

if (size > RADEON_MAX_TEXTURE_SIZE) {

"size" is an integer and it's controled by the user so it can be
negative and the test can underflow.  Later we use "size" in:

dwords = size / 4;
...
RADEON_COPY_MT(buffer, data, (int)(dwords * sizeof(u32)));

It causes memory corruption to copy a negative size buffer.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
9 years agodrm/radeon: adjust default bapm settings for KV
Alex Deucher [Mon, 15 Dec 2014 22:24:19 +0000 (17:24 -0500)]
drm/radeon: adjust default bapm settings for KV

Enabling bapm seems to cause clocking problems on some
KV configurations.  Disable it by default for now.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
9 years agodrm/radeon: properly filter DP1.2 4k modes on non-DP1.2 hw
Alex Deucher [Wed, 10 Dec 2014 14:42:10 +0000 (09:42 -0500)]
drm/radeon: properly filter DP1.2 4k modes on non-DP1.2 hw

The check was already in place in the dp mode_valid check, but
radeon_dp_get_dp_link_clock() never returned the high clock
mode_valid was checking for because that function clipped the
clock based on the hw capabilities.  Add an explicit check
in the mode_valid function.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=87172

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc:stable@vge.kernel.org

9 years agodrm/radeon: fix sad_count check for dce3
Alex Deucher [Tue, 9 Dec 2014 15:04:01 +0000 (10:04 -0500)]
drm/radeon: fix sad_count check for dce3

Make it consistent with the sad code for other asics to deal
with monitors that don't report sads.

bug:
https://bugzilla.kernel.org/show_bug.cgi?id=89461

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
9 years agodrm/radeon: KV has three PPLLs (v2)
Alex Deucher [Fri, 5 Dec 2014 18:46:07 +0000 (13:46 -0500)]
drm/radeon: KV has three PPLLs (v2)

Enable all three in the driver.  Early documentation
indicated the 3rd one was used for something else, but
that is not the case.

v2: handle disable as well

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
9 years agoKEYS: close race between key lookup and freeing
Sasha Levin [Mon, 29 Dec 2014 14:39:01 +0000 (09:39 -0500)]
KEYS: close race between key lookup and freeing

When a key is being garbage collected, it's key->user would get put before
the ->destroy() callback is called, where the key is removed from it's
respective tracking structures.

This leaves a key hanging in a semi-invalid state which leaves a window open
for a different task to try an access key->user. An example is
find_keyring_by_name() which would dereference key->user for a key that is
in the process of being garbage collected (where key->user was freed but
->destroy() wasn't called yet - so it's still present in the linked list).

This would cause either a panic, or corrupt memory.

Fixes CVE-2014-9529.

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: David Howells <dhowells@redhat.com>
9 years agodrm/amdkfd: unmap VMID<-->PASID when relesing VMID (non-HWS)
Ben Goz [Mon, 5 Jan 2015 13:48:28 +0000 (15:48 +0200)]
drm/amdkfd: unmap VMID<-->PASID when relesing VMID (non-HWS)

This patch fixes a bug where deallocate_vmid() didn't actually unmap the
VMID<-->PASID mapping (in the registers).
That can cause undefined behavior.

This bug only occurs in non-HWS mode.

Signed-off-by: Ben Goz <ben.goz@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
9 years agoALSA: hda - Fix wrong gpio_dir & gpio_mask hint setups for IDT/STAC codecs
Takashi Iwai [Mon, 5 Jan 2015 12:27:33 +0000 (13:27 +0100)]
ALSA: hda - Fix wrong gpio_dir & gpio_mask hint setups for IDT/STAC codecs

stac_store_hints() does utterly wrong for masking the values for
gpio_dir and gpio_data, likely due to copy&paste errors.  Fortunately,
this feature is used very rarely, so the impact must be really small.

Reported-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoiommu/rockchip: Drop owner assignment from platform_drivers
Wolfram Sang [Sun, 21 Dec 2014 21:14:30 +0000 (22:14 +0100)]
iommu/rockchip: Drop owner assignment from platform_drivers

This platform_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
9 years agoiommu/vt-d: Remove dead code in device_notifier
Joerg Roedel [Tue, 9 Dec 2014 12:18:22 +0000 (13:18 +0100)]
iommu/vt-d: Remove dead code in device_notifier

This code only runs when action == BUS_NOTIFY_REMOVED_DEVICE,
so it can't be BUS_NOTIFY_DEL_DEVICE.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
9 years agoiommu/vt-d: Fix dmar_domain leak in iommu_attach_device
Joerg Roedel [Tue, 9 Dec 2014 11:56:45 +0000 (12:56 +0100)]
iommu/vt-d: Fix dmar_domain leak in iommu_attach_device

Since commit 1196c2f a domain is only destroyed in the
notifier path if it is hot-unplugged. This caused a
domain leakage in iommu_attach_device when a driver was
unbound from the device and bound to VFIO. In this case the
device is attached to a new domain and unlinked from the old
domain. At this point nothing points to the old domain
anymore and its memory is leaked.
Fix this by explicitly freeing the old domain in
iommu_attach_domain.

Fixes: 1196c2f (iommu/vt-d: Fix dmar_domain leak in iommu_attach_device)
Cc: stable@vger.kernel.org # v3.18
Tested-by: Jerry Hoemann <jerry.hoemann@hp.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
9 years agoiommu/ipmmu-vmsa: Change IOMMU_EXEC to IOMMU_NOEXEC
Laurent Pinchart [Mon, 15 Dec 2014 18:41:13 +0000 (20:41 +0200)]
iommu/ipmmu-vmsa: Change IOMMU_EXEC to IOMMU_NOEXEC

Commit a720b41c41f5a7e4 ("iommu/arm-smmu: change IOMMU_EXEC to
IOMMU_NOEXEC") has inverted and replaced the IOMMU_EXEC flag with
IOMMU_NOEXEC. Update the driver accordingly.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
9 years agocrypto: sha-mb - Add avx2_supported check.
Vinson Lee [Tue, 30 Dec 2014 00:20:39 +0000 (16:20 -0800)]
crypto: sha-mb - Add avx2_supported check.

This patch fixes this allyesconfig target build error with older
binutils.

  LD      arch/x86/crypto/built-in.o
ld: arch/x86/crypto/sha-mb/built-in.o: No such file: No such file or directory

Cc: stable@vger.kernel.org # 3.18+
Signed-off-by: Vinson Lee <vlee@twitter.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
9 years agocrypto: aesni - fix "by8" variant for 128 bit keys
Mathias Krause [Tue, 30 Dec 2014 21:50:54 +0000 (22:50 +0100)]
crypto: aesni - fix "by8" variant for 128 bit keys

The "by8" counter mode optimization is broken for 128 bit keys with
input data longer than 128 bytes. It uses the wrong key material for
en- and decryption.

The key registers xkey0, xkey4, xkey8 and xkey12 need to be preserved
in case we're handling more than 128 bytes of input data -- they won't
get reloaded after the initial load. They must therefore be (a) loaded
on the first iteration and (b) be preserved for the latter ones. The
implementation for 128 bit keys does not comply with (a) nor (b).

Fix this by bringing the implementation back to its original source
and correctly load the key registers and preserve their values by
*not* re-using the registers for other purposes.

Kudos to James for reporting the issue and providing a test case
showing the discrepancies.

Reported-by: James Yonan <james@openvpn.net>
Cc: Chandramouli Narayanan <mouli@linux.intel.com>
Cc: <stable@vger.kernel.org> # v3.18
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
9 years agoRevert "mac80211: Fix accounting of the tailroom-needed counter"
Johannes Berg [Mon, 5 Jan 2015 09:28:49 +0000 (10:28 +0100)]
Revert "mac80211: Fix accounting of the tailroom-needed counter"

This reverts commit ca34e3b5c808385b175650605faa29e71e91991b.

It turns out that the p54 and cw2100 drivers assume that there's
tailroom even when they don't say they really need it. However,
there's currently no way for them to explicitly say they do need
it, so for now revert this.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=90331.

Cc: stable@vger.kernel.org
Fixes: ca34e3b5c808 ("mac80211: Fix accounting of the tailroom-needed counter")
Reported-by: Christopher Chavez <chrischavez@gmx.us>
Bisected-by: Larry Finger <Larry.Finger@lwfinger.net>
Debugged-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
9 years agoALSA: snd-usb-caiaq: fix stream count check
Daniel Mack [Sun, 4 Jan 2015 18:59:29 +0000 (19:59 +0100)]
ALSA: snd-usb-caiaq: fix stream count check

Commit 897c329bc ("ALSA: usb: caiaq: check for cdev->n_streams > 1")
introduced a safety check to protect against bogus data provided by
devices. However, the n_streams variable is already divided by
CHANNELS_PER_STREAM, so the correct check is 'n_streams > 0'.

Fix this to un-break support for stereo devices.

Signed-off-by: Daniel Mack <daniel@zonque.org>
Cc: stable@kernel.org [v3.18+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agonet: ethernet: cpsw: fix hangs with interrupts
Felipe Balbi [Fri, 2 Jan 2015 22:15:59 +0000 (16:15 -0600)]
net: ethernet: cpsw: fix hangs with interrupts

The CPSW IP implements pulse-signaled interrupts. Due to
that we must write a correct, pre-defined value to the
CPDMA_MACEOIVECTOR register so the controller generates
a pulse on the correct IRQ line to signal the End Of
Interrupt.

The way the driver is written today, all four IRQ lines
are requested using the same IRQ handler and, because of
that, we could fall into situations where a TX IRQ fires
but we tell the controller that we ended an RX IRQ (or
vice-versa). This situation triggers an IRQ storm on the
reserved IRQ 127 of INTC which will in turn call ack_bad_irq()
which will, then, print a ton of:

unexpected IRQ trap at vector 00

In order to fix the problem, we are moving all calls to
cpdma_ctlr_eoi() inside the IRQ handler and making sure
we *always* write the correct value to the CPDMA_MACEOIVECTOR
register. Note that the algorithm assumes that IRQ numbers and
value-to-be-written-to-EOI are proportional, meaning that a
write of value 0 would trigger an EOI pulse for the RX_THRESHOLD
Interrupt and that's the IRQ number sitting in the 0-th index
of our irqs_table array.

This, however, is safe at least for current implementations of
CPSW so we will refrain from making the check smarter (and, as
a side-effect, slower) until we actually have a platform where
IRQ lines are swapped.

This patch has been tested for several days with AM335x- and
AM437x-based platforms. AM57x was left out because there are
still pending patches to enable ethernet in mainline for that
platform. A read of the TRM confirms the statement on previous
paragraph.

Reported-by: Yegor Yefremov <yegorslists@googlemail.com>
Fixes: 510a1e7 (drivers: net: davinci_cpdma: acknowledge interrupt properly)
Cc: <stable@vger.kernel.org> # v3.9+
Signed-off-by: Felipe Balbi <balbi@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Linus Torvalds [Sun, 4 Jan 2015 19:46:43 +0000 (11:46 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/rw/uml

Pull UML fixes from Richard Weinberger:
 "Two fixes for UML regressions. Nothing exciting"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
  x86, um: actually mark system call tables readonly
  um: Skip futex_atomic_cmpxchg_inatomic() test

9 years agoRevert "ARM: 7830/1: delay: don't bother reporting bogomips in /proc/cpuinfo"
Pavel Machek [Sun, 4 Jan 2015 19:01:23 +0000 (20:01 +0100)]
Revert "ARM: 7830/1: delay: don't bother reporting bogomips in /proc/cpuinfo"

Commit 9fc2105aeaaf ("ARM: 7830/1: delay: don't bother reporting
bogomips in /proc/cpuinfo") breaks audio in python, and probably
elsewhere, with message

  FATAL: cannot locate cpu MHz in /proc/cpuinfo

I'm not the first one to hit it, see for example

  https://theredblacktree.wordpress.com/2014/08/10/fatal-cannot-locate-cpu-mhz-in-proccpuinfo/
  https://devtalk.nvidia.com/default/topic/765800/workaround-for-fatal-cannot-locate-cpu-mhz-in-proc-cpuinf/?offset=1

Reading original changelog, I have to say "Stop breaking working setups.
You know who you are!".

Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agox86, um: actually mark system call tables readonly
Daniel Borkmann [Sat, 3 Jan 2015 12:11:10 +0000 (13:11 +0100)]
x86, um: actually mark system call tables readonly

Commit a074335a370e ("x86, um: Mark system call tables readonly") was
supposed to mark the sys_call_table in UML as RO by adding the const,
but it doesn't have the desired effect as it's nevertheless being placed
into the data section since __cacheline_aligned enforces sys_call_table
being placed into .data..cacheline_aligned instead. We need to use
the ____cacheline_aligned version instead to fix this issue.

Before:

$ nm -v arch/x86/um/sys_call_table_64.o | grep -1 "sys_call_table"
                 U sys_writev
0000000000000000 D sys_call_table
0000000000000000 D syscall_table_size

After:

$ nm -v arch/x86/um/sys_call_table_64.o | grep -1 "sys_call_table"
                 U sys_writev
0000000000000000 R sys_call_table
0000000000000000 D syscall_table_size

Fixes: a074335a370e ("x86, um: Mark system call tables readonly")
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
9 years agoum: Skip futex_atomic_cmpxchg_inatomic() test
Richard Weinberger [Wed, 10 Dec 2014 12:53:51 +0000 (13:53 +0100)]
um: Skip futex_atomic_cmpxchg_inatomic() test

futex_atomic_cmpxchg_inatomic() does not work on UML because
it triggers a copy_from_user() in kernel context.
On UML copy_from_user() can only be used if the kernel was called
by a real user space process such that UML can use ptrace()
to fetch the value.

Reported-by: Miklos Szeredi <miklos@szeredi.hu>
Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
Tested-by: Daniel Walter <d.walter@0x90.at>
9 years agoMerge tag 'amdkfd-fixes-2014-12-30' of git://people.freedesktop.org/~gabbayo/linux...
Dave Airlie [Sun, 4 Jan 2015 07:44:43 +0000 (17:44 +1000)]
Merge tag 'amdkfd-fixes-2014-12-30' of git://people.freedesktop.org/~gabbayo/linux into linus

Highlights:

- Link order changes in drm/Makefile and drivers/Makefile to fix issue
  when amdkfd, radeon and amd_iommu_v2 are compiled inside the kernel
  image.

- Consider kernel configuration (using #IFDEFs) when radeon initializes
  amdkfd, due to a specific configuration that makes symbol_request()
  return a non-NULL value when a symbol doesn't exists. Rusty Russel
  is helping me to find the root cause, but it may take a while because
  of year-end so I'm sending this as a band-aid solution.

* tag 'amdkfd-fixes-2014-12-30' of git://people.freedesktop.org/~gabbayo/linux:
  drm/radeon: Init amdkfd only if it was compiled
  amdkfd: actually allocate longs for the pasid bitmask
  drm: Put amdkfd before radeon in drm Makefile
  drivers: Move iommu/ before gpu/ in Makefile
  amdkfd: Remove duplicate include
  amdkfd: Fixing topology bug in building sysfs nodes
  amdkfd: Fix accounting of device queues

9 years agoMerge tag 'drm-intel-next-fixes-2014-12-30' of git://anongit.freedesktop.org/drm...
Dave Airlie [Sun, 4 Jan 2015 07:41:00 +0000 (17:41 +1000)]
Merge tag 'drm-intel-next-fixes-2014-12-30' of git://anongit.freedesktop.org/drm-intel into linus

I've had these since before -rc1, but they missed my last pull
request. Real bug fixes and mostly cc: stable material.

* tag 'drm-intel-next-fixes-2014-12-30' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: add missing rpm ref to i915_gem_pwrite_ioctl
  Revert "drm/i915: Preserve VGACNTR bits from the BIOS"
  drm/i915: Don't call intel_prepare_page_flip() multiple times on gen2-4
  drm/i915: Kill check_power_well() calls

9 years agoperf diff: Fix to sort by baseline field by default
Namhyung Kim [Sat, 27 Dec 2014 05:06:29 +0000 (14:06 +0900)]
perf diff: Fix to sort by baseline field by default

The currently perf diff didn't add the baseline and delta (or other
compute) fields to the sort list so output will be sorted by other
fields like alphabetical order of DSO or symbol as below example.

Fix it by adding hpp formats for the fields and provides default compare
functions.

Before:

  $ perf diff
  # Event 'cycles'
  #
  # Baseline    Delta  Shared Object       Symbol
  # ........  .......  ..................  ...............................
  #
                       [bridge]            [k] ip_sabotage_in
                       [btrfs]             [k] __etree_search.constprop.47
       0.01%           [btrfs]             [k] btrfs_file_mmap
       0.01%   -0.01%  [btrfs]             [k] btrfs_getattr
                       [e1000e]            [k] e1000_watchdog
       0.00%           [kernel.vmlinux]    [k] PageHuge
       0.00%           [kernel.vmlinux]    [k] __acct_update_integrals
       0.00%           [kernel.vmlinux]    [k] __activate_page
                       [kernel.vmlinux]    [k] __alloc_fd
       0.02%   +0.02%  [kernel.vmlinux]    [k] __alloc_pages_nodemask
       ...

After:

  # Baseline    Delta  Shared Object       Symbol
  # ........  .......  ..................  ................................
  #
      24.73%   -4.62%  perf                [.] append_chain_children
       7.96%   -1.29%  perf                [.] dso__find_symbol
       6.97%   -2.07%  libc-2.20.so        [.] vfprintf
       4.61%   +0.88%  libc-2.20.so        [.] __fprintf_chk
       4.41%   +2.43%  perf                [.] sort__comm_cmp
       4.10%   -0.16%  perf                [.] comm__str
       4.03%   -0.93%  perf                [.] machine__findnew_thread_time
       3.82%   +3.09%  perf                [.] __hists__add_entry
       2.95%   -0.18%  perf                [.] sort__dso_cmp
       ...

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1419656793-32756-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
9 years agoperf list: Fix --raw-dump option
Taesoo Kim [Wed, 31 Dec 2014 03:36:55 +0000 (22:36 -0500)]
perf list: Fix --raw-dump option

Currently, 'perf list --raw-dump' requires extra arguments
(e.g., hw) to invoke, which breaks bash/zsh completion
(perf-completion.sh).

  $ perf list --raw-dump
    Error: unknown option `raw-dump'

     usage: perf list [hw|sw|cache|tracepoint|pmu|event_glob]

After,

  $ perf list --raw-dump
  cpu-cycles instructions cache-references cache-misses ...

Signed-off-by: Taesoo Kim <tsgatesv@gmail.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Taesoo kim <taesoo@gatech.edu>
Link: http://lkml.kernel.org/r/1419997015-11071-1-git-send-email-tsgatesv@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
9 years agoenic: free all rq buffs when allocation fails
Govindarajulu Varadarajan [Fri, 2 Jan 2015 15:23:27 +0000 (20:53 +0530)]
enic: free all rq buffs when allocation fails

When allocation of all RQs fail, we do not free previously allocated buffers,
before returning error. This causes memory leak.

This patch fixes this by calling vnic_rq_clean(), which frees all the rq
buffers.

Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoqmi_wwan: Set random MAC on devices with buggy fw
Kristian Evensen [Fri, 2 Jan 2015 15:21:45 +0000 (16:21 +0100)]
qmi_wwan: Set random MAC on devices with buggy fw

Some buggy firmwares export an incorrect MAC address (00:a0:c6:00:00:00). This
makes for example checking devices for random MAC addresses tricky, and you
might end up with multiple network interfaces with the same address.

This patch tries to fix, or at least improve, the situation by setting the MAC
address of devices with this firmware bug to a random address. I tested the
patch with two devices that has this firmware bug (Huawei E398 and E392), and
network traffic worked fine after changing the address.

Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Fri, 2 Jan 2015 21:24:41 +0000 (13:24 -0800)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is a set of three fixes: one to correct an abort path thinko
  causing failures (and a panic) in USB on device misbehaviour, One to
  fix an out of order issue in the fnic driver and one to match discard
  expectations to qemu which otherwise cause Linux to behave badly as a
  guest"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  SCSI: fix regression in scsi_send_eh_cmnd()
  fnic: IOMMU Fault occurs when IO and abort IO is out of order
  sd: tweak discard heuristics to work around QEMU SCSI issue

9 years agoopenvswitch: Consistently include VLAN header in flow and port stats.
Ben Pfaff [Wed, 31 Dec 2014 16:45:46 +0000 (08:45 -0800)]
openvswitch: Consistently include VLAN header in flow and port stats.

Until now, when VLAN acceleration was in use, the bytes of the VLAN header
were not included in port or flow byte counters.  They were however
included when VLAN acceleration was not used.  This commit corrects the
inconsistency, by always including the VLAN header in byte counters.

Previous discussion at
http://openvswitch.org/pipermail/dev/2014-December/049521.html

Reported-by: Motonori Shindo <mshindo@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Reviewed-by: Flavio Leitner <fbl@sysclose.org>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agotcp: Do not apply TSO segment limit to non-TSO packets
Herbert Xu [Wed, 31 Dec 2014 13:39:23 +0000 (00:39 +1100)]
tcp: Do not apply TSO segment limit to non-TSO packets

Thomas Jarosch reported IPsec TCP stalls when a PMTU event occurs.

In fact the problem was completely unrelated to IPsec.  The bug is
also reproducible if you just disable TSO/GSO.

The problem is that when the MSS goes down, existing queued packet
on the TX queue that have not been transmitted yet all look like
TSO packets and get treated as such.

This then triggers a bug where tcp_mss_split_point tells us to
generate a zero-sized packet on the TX queue.  Once that happens
we're screwed because the zero-sized packet can never be removed
by ACKs.

Fixes: 1485348d242 ("tcp: Apply device TSO segment limit earlier")
Reported-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Cheers,
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge tag 'sound-3.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 2 Jan 2015 20:57:20 +0000 (12:57 -0800)]
Merge tag 'sound-3.19-rc3' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Nothing too exciting as a new year's start here: most of fixes are for
  ASoC, a boot crash fix on OMAP for deferred probe, a few driver
  specific fixes (Intel, dwc, rockchip, rt5677), in addition to typo
  fixes in kerneldoc comments for PCM"

* tag 'sound-3.19-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: pcm: Fix kerneldoc for params_*() functions
  ASoC: rockchip: i2s: fix maxburst of dma data to 4
  ASoC: rockchip: i2s: fix error defination of transmit data level
  ASoC: Intel: correct the fixed free block allocation
  ASoC: rt5677: fixed rt5677_dsp_vad_put rt5677_dsp_vad_get panic
  ASoC: Intel: Fix BYTCR machine driver MODULE_ALIAS
  ASoC: Intel: Fix BYTCR firmware name
  ASoC: dwc: Iterate over all channels
  ASoC: dwc: Ensure FIFOs are flushed to prevent channel swap
  ASoC: Intel: Add I2C dependency to two new machines
  ASoC: dapm: Remove snd_soc_of_parse_audio_routing() due to deferred probe

9 years agoAltera TSE: Add missing phydev
Kostya Belezko [Tue, 30 Dec 2014 17:27:09 +0000 (12:27 -0500)]
Altera TSE: Add missing phydev

Altera network device doesn't come up after

ifconfig eth0 down
ifconfig eth0 up

The reason behind is clearing priv->phydev during tse_shutdown().
The phydev is not restored back at tse_open().

Resubmiting as to follow Tobias Klauser suggestion.
phy_start/phy_stop are called on each ifup/ifdown and
phy_disconnect is called once during the module removal.

Signed-off-by: Kostya Belezko <bkostya@hotmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge branch 'mlx4-net'
David S. Miller [Fri, 2 Jan 2015 20:41:33 +0000 (15:41 -0500)]
Merge branch 'mlx4-net'

Or Gerlitz says:

====================
mlx4 driver fixes for 3.19-rc2

Please push Maor's patch to -stable >= 3.17

Jack's fixes error-flow issues introduced in 3.19-rc1, no need for -stable.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet/mlx4_core: Fix error flow in mlx4_init_hca()
Jack Morgenstein [Tue, 30 Dec 2014 09:59:50 +0000 (11:59 +0200)]
net/mlx4_core: Fix error flow in mlx4_init_hca()

We shouldn't call UNMAP_FA here, this is done in mlx4_load_one.

If mlx4_query_func fails, we need to invoke CLOSE_HCA for both
native and master.

Fixes: a0eacca948d2 ('net/mlx4_core: Refactor mlx4_load_one')
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet/mlx4_core: Correcly update the mtt's offset in the MR re-reg flow
Maor Gottlieb [Tue, 30 Dec 2014 09:59:49 +0000 (11:59 +0200)]
net/mlx4_core: Correcly update the mtt's offset in the MR re-reg flow

Previously, mlx4_mt_rereg_write filled the MPT's entity_size with the
old MTT's page shift, which could result in using an incorrect offset.
Fix the initialization to be after we calculate the new MTT offset.

In addition, assign mtt order to -1 after calling mlx4_mtt_cleanup. This
is necessary in order to mark the MTT as invalid and avoid freeing it later.

Fixes: e630664 ('mlx4_core: Add helper functions to support MR re-registration')
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoext4: remove spurious KERN_INFO from ext4_warning call
Jakub Wilk [Fri, 2 Jan 2015 20:31:14 +0000 (15:31 -0500)]
ext4: remove spurious KERN_INFO from ext4_warning call

Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
9 years agoRevert "ext4: fix suboptimal seek_{data,hole} extents traversial"
Theodore Ts'o [Fri, 2 Jan 2015 20:16:00 +0000 (15:16 -0500)]
Revert "ext4: fix suboptimal seek_{data,hole} extents traversial"

This reverts commit 14516bb7bb6ffbd49f35389f9ece3b2045ba5815.

This was causing regression test failures with generic/285 with an ext3
filesystem using CONFIG_EXT4_USE_FOR_EXT23.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
9 years agoMerge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Linus Torvalds [Fri, 2 Jan 2015 20:07:50 +0000 (12:07 -0800)]
Merge tag 'for_linus' of git://git./linux/kernel/git/mst/vhost

Pull vhost cleanup and virtio bugfix
 "There's a single change here, fixing a vhost bug where vhost
  initialization fails due to used ring alignment check being too
  strict"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  vhost: relax used address alignment
  virtio_ring: document alignment requirements

9 years agoBtrfs: don't delay inode ref updates during log replay
Chris Mason [Wed, 31 Dec 2014 17:18:29 +0000 (12:18 -0500)]
Btrfs: don't delay inode ref updates during log replay

Commit 1d52c78afbb (Btrfs: try not to ENOSPC on log replay) added a
check to skip delayed inode updates during log replay because it
confuses the enospc code.  But the delayed processing will end up
ignoring delayed refs from log replay because the inode itself wasn't
put through the delayed code.

This can end up triggering a warning at commit time:

WARNING: CPU: 2 PID: 778 at fs/btrfs/delayed-inode.c:1410 btrfs_assert_delayed_root_empty+0x32/0x34()

Which is repeated for each commit because we never process the delayed
inode ref update.

The fix used here is to change btrfs_delayed_delete_inode_ref to return
an error if we're currently in log replay.  The caller will do the ref
deletion immediately and everything will work properly.

Signed-off-by: Chris Mason <clm@fb.com>
cc: stable@vger.kernel.org # v3.18 and any stable series that picked 1d52c78afbbf80b58299e076a159617d6b42fe3c

9 years agoBtrfs: correctly get tree level in tree_backref_for_extent
Filipe Manana [Mon, 15 Dec 2014 16:04:42 +0000 (16:04 +0000)]
Btrfs: correctly get tree level in tree_backref_for_extent

If we are using skinny metadata, the block's tree level is in the offset
of the key and not in a btrfs_tree_block_info structure following the
extent item (it doesn't exist). Therefore fix it.

Besides returning the correct level in the tree, this also prevents reading
past the leaf's end in the case where the extent item is the last item in
the leaf (eb) and it has only 1 inline reference - this is because
sizeof(struct btrfs_tree_block_info) is greater than
sizeof(struct btrfs_extent_inline_ref).

Got it while running a scrub which produced the following warning:

    BTRFS: checksum error at logical 42123264 on dev /dev/sde, sector 15840: metadata node (level 24) in tree 5

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
9 years agoBtrfs: call inode_dec_link_count() on mkdir error path
Wang Shilong [Wed, 24 Dec 2014 06:45:30 +0000 (14:45 +0800)]
Btrfs: call inode_dec_link_count() on mkdir error path

In btrfs_mkdir(), if it fails to create dir, we should
clean up existed items, setting inode's link properly
to make sure it could be cleaned up properly.

Signed-off-by: Wang Shilong <wangshilong1991@gmail.com>
Signed-off-by: Chris Mason <clm@fb.com>
9 years agoBtrfs: abort transaction if we don't find the block group
Josef Bacik [Fri, 12 Dec 2014 21:02:20 +0000 (16:02 -0500)]
Btrfs: abort transaction if we don't find the block group

We shouldn't BUG_ON() if there is corruption.  I hit this while testing my block
group patch and the abort worked properly.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
9 years agoBtrfs, scrub: uninitialized variable in scrub_extent_for_parity()
Dan Carpenter [Fri, 12 Dec 2014 19:30:00 +0000 (22:30 +0300)]
Btrfs, scrub: uninitialized variable in scrub_extent_for_parity()

The only way that "ret" is set is when we call scrub_pages_for_parity()
so the skip to "if (ret) " test doesn't make sense and causes a static
checker warning.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Chris Mason <clm@fb.com>
9 years agoBtrfs: add more maintainers
Chris Mason [Tue, 30 Dec 2014 17:00:02 +0000 (09:00 -0800)]
Btrfs: add more maintainers

I'm lucky to have a huge amount of help on Btrfs, and want to thank
everyone that sends patches, does review and helps track down bugs.

Dave Sterba is a long time reviewer and contributor, and adding him
to the maintainers file reflects the excellent work he has been
doing for years.

Signed-off-by: Chris Mason <clm@fb.com>
9 years agoperf probe: Fix crash in dwarf_getcfi_elf
Namhyung Kim [Tue, 30 Dec 2014 08:47:47 +0000 (17:47 +0900)]
perf probe: Fix crash in dwarf_getcfi_elf

David reported that perf can segfault when adding an uprobe event like
this:

  $ perf probe -x /lib64/libc-2.14.90.so -a 'malloc  size=%di'

  (gdb) bt
  #0  parse_eh_frame_hdr (hdr=0x0, hdr_size=2596, hdr_vaddr=71788,
      ehdr=0x7fffffffd390, eh_frame_vaddr=
      0x7fffffffd378, table_entries=0x8808d8, table_encoding=0x8808e0 "") at
      dwarf_getcfi_elf.c:79
  #1  0x000000385f81615a in getcfi_scn_eh_frame (hdr_vaddr=71788,
      hdr_scn=0x8839b0, shdr=0x7fffffffd2f0, scn=<optimized out>,
      ehdr=0x7fffffffd390, elf=0x882b30) at dwarf_getcfi_elf.c:231
  #2  getcfi_shdr (ehdr=0x7fffffffd390, elf=0x882b30) at dwarf_getcfi_elf.c:283
  #3  dwarf_getcfi_elf (elf=0x882b30) at dwarf_getcfi_elf.c:309
  #4  0x00000000004d5bac in debuginfo__find_probes (pf=0x7fffffffd4f0,
      dbg=Unhandled dwarf expression opcode 0xfa) at util/probe-finder.c:993
  #5  0x00000000004d634a in debuginfo__find_trace_events (dbg=0x880840,
      pev=<optimized out>, tevs=0x880f88, max_tevs=<optimized out>) at
      util/probe-finder.c:1200
  #6  0x00000000004aed6b in try_to_find_probe_trace_events (target=0x881b20
      "/lib64/libpthread-2.14.90.so",
      max_tevs=128, tevs=0x880f88, pev=0x859b30) at util/probe-event.c:482
  #7  convert_to_probe_trace_events (target=0x881b20
      "/lib64/libpthread-2.14.90.so", max_tevs=128, tevs=0x880f88,
      pev=0x859b30) at util/probe-event.c:2356
  #8  add_perf_probe_events (pevs=<optimized out>, npevs=1, max_tevs=128,
      target=0x881b20 "/lib64/libpthread-2.14.90.so", force_add=false) at
      util/probe-event.c:2391
  #9  0x000000000044014f in __cmd_probe (argc=<optimized out>,
      argv=0x7fffffffe2f0, prefix=Unhandled dwarf expression opcode 0xfa) at
      at builtin-probe.c:488
  #10 0x0000000000440313 in cmd_probe (argc=5, argv=0x7fffffffe2f0,
      prefix=<optimized out>) at builtin-probe.c:506
  #11 0x000000000041d133 in run_builtin (p=0x805680, argc=5,
      argv=0x7fffffffe2f0) at perf.c:341
  #12 0x000000000041c8b2 in handle_internal_command (argv=<optimized out>,
      argc=<optimized out>) at perf.c:400
  #13 run_argv (argv=<optimized out>, argcp=<optimized out>) at perf.c:444
  #14 main (argc=5, argv=0x7fffffffe2f0) at perf.c:559

And I found a related commit (5704c8c4fa71 "getcfi_scn_eh_frame: Don't
crash and burn when .eh_frame bits aren't there.") in elfutils that can
lead to a unexpected crash like this.  To safely use the function, it
needs to check the .eh_frame section is a PROGBITS type.

Reported-by: David Ahern <dsahern@gmail.com>
Tested-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Mark Wielaard <mjw@redhat.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Link: http://lkml.kernel.org/r/20141230090533.GH6081@sejong
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
9 years agoperf probe: Fix to fall back to find probe point in symbols
Masami Hiramatsu [Wed, 31 Dec 2014 06:27:47 +0000 (15:27 +0900)]
perf probe: Fix to fall back to find probe point in symbols

Fix to fall back to find a probe point in symbols if perf fails to find
it in debuginfo.

This can happen when the target function is an alias of another
function. Such alias doesn't have an entry in debuginfo but in symbols.

David Ahern reported this problem in https://lkml.org/lkml/2014/12/29/355

I ensured the problem and deeper investigation discovers it.
 -----
 eu-readelf --debug-dump=info /usr/lib/debug/lib/x86_64-linux-gnu/libc-2.19.so | grep \"malloc\" -A6
             name                 (strp) "malloc"
             decl_file            (data1) 25
             decl_line            (data2) 466
             prototyped           (flag_present)
             type                 (ref4) [  81b5]
             declaration          (flag_present)
 [  8f58]      formal_parameter
 --
             name                 (strp) "malloc"
             decl_file            (data1) 23
             decl_line            (data2) 466
             prototyped           (flag_present)
             type                 (ref4) [  9f4a]
             declaration          (flag_present)
             sibling              (ref4) [  bb29]
 ...
 -----
All these entires have no instances (all of them are declarations)
This is why the perf probe failed to find it in debuginfo.

However, there are some malloc instances in symbols.
 -----
 eu-readelf --symbols /usr/lib/debug/lib/x86_64-linux-gnu/libc-2.19.so | grep malloc$
  1181: 0000000000080700   5332 FUNC    LOCAL  DEFAULT       12 _int_malloc
  4537: 00000000000831d0    339 FUNC    LOCAL  DEFAULT       12 __GI___libc_malloc
  5545: 00000000000831d0    339 FUNC    LOCAL  DEFAULT       12 __malloc
  6063: 00000000000831d0    339 FUNC    GLOBAL DEFAULT       12 malloc
  7302: 00000000000831d0    339 FUNC    GLOBAL DEFAULT       12 __libc_malloc
 -----
As you an see, malloc and __libc_malloc have same address, and actually
__libc_malloc has an entry in debuginfo. So you can set up a probe on
__libc_malloc.

To fix this problem shortly, perf probe simply falls back to find probe
point(malloc) in symbols if it is not found in debuginfo.

Reported-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: yrl.pp-manager.tt@hitachi.com
Link: http://lkml.kernel.org/r/20141231062747.2087.80961.stgit@localhost.localdomain
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
9 years agokbuild: Fix removal of the debian/ directory
Michal Marek [Wed, 31 Dec 2014 15:29:35 +0000 (16:29 +0100)]
kbuild: Fix removal of the debian/ directory

scripts/Makefile.clean treats absolute path specially, but
$(objtree)/debian is no longer an absolute path since 7e1c0477 (kbuild:
Use relative path for $(objtree). Work around this by checking if the
path starts with $(objtree)/.

Reported-and-tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Fixes: 7e1c0477 (kbuild: Use relative path for $(objtree)
Signed-off-by: Michal Marek <mmarek@suse.cz>
9 years agoMerge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git...
Ingo Molnar [Thu, 1 Jan 2015 21:24:36 +0000 (22:24 +0100)]
Merge tag 'perf-urgent-for-mingo' of git://git./linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent fixes from Arnaldo Carvalho de Melo:

  User visible fixes:

  - Show progress bar in more places while doing histogram processing
    in the hists browser (Namhyung Kim)

  - Print backtrace symbols when segfault occurs in 'report' (Namhyung Kim)

  Infrastructure fixes:

  - Append callchains only when requested (Namhyung Kim)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
9 years agoMerge tag 'pr-20141223-x86-vdso' of git://git.kernel.org/pub/scm/linux/kernel/git...
Ingo Molnar [Thu, 1 Jan 2015 21:21:22 +0000 (22:21 +0100)]
Merge tag 'pr-20141223-x86-vdso' of git://git./linux/kernel/git/luto/linux into x86/urgent

Pull VDSO fix from Andy Lutomirski:

 "This is hopefully the last vdso fix for 3.19.  It should be very
  safe (it just adds a volatile).

  I don't think it fixes an actual bug (the __getcpu calls in the
  pvclock code may not have been needed in the first place), but
  discussion on that point is ongoing.

  It also fixes a big performance issue in 3.18 and earlier in which
  the lsl instructions in vclock_gettime got hoisted so far up the
  function that they happened even when the function they were in was
  never called.  n 3.19, the performance issue seems to be gone due to
  the whims of my compiler and some interaction with a branch that's
  now gone.

  I'll hopefully have a much bigger overhaul of the pvclock code
  for 3.20, but it needs careful review."

Signed-off-by: Ingo Molnar <mingo@kernel.org>
9 years agoqlcnic: Fix return value in qlcnic_probe()
Yongjian Xu [Tue, 30 Dec 2014 08:03:46 +0000 (16:03 +0800)]
qlcnic: Fix return value in qlcnic_probe()

If the check of adapter fails and goes into the 'else' branch, the
return value 'err' should not still be zero.

Signed-off-by: Yongjian Xu <xuyongjiande@gmail.com>
Acked-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: axienet: fix error return code
Julia Lawall [Mon, 29 Dec 2014 17:04:42 +0000 (18:04 +0100)]
net: axienet: fix error return code

Return a negative error code on failure.

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

// <smpl>
@@
identifier ret; expression e1,e2;
@@
(
if (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret = 0
)
... when != ret = e1
    when != &ret
*if(...)
{
  ... when != ret = e2
      when forall
 return ret;
}
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: sun4i-emac: fix error return code
Julia Lawall [Mon, 29 Dec 2014 17:04:40 +0000 (18:04 +0100)]
net: sun4i-emac: fix error return code

Return a negative error code on failure.

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

// <smpl>
@@
identifier ret; expression e1,e2;
@@
(
if (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret = 0
)
... when != ret = e1
    when != &ret
*if(...)
{
  ... when != ret = e2
      when forall
 return ret;
}
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agomyri10ge: fix error return code
Julia Lawall [Mon, 29 Dec 2014 17:04:37 +0000 (18:04 +0100)]
myri10ge: fix error return code

Return a negative error code on failure.

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

// <smpl>
@@
identifier ret; expression e1,e2;
@@
(
if (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret = 0
)
... when != ret = e1
    when != &ret
*if(...)
{
  ... when != ret = e2
      when forall
 return ret;
}
// </smpl>

The patch also modifies the test of mgp->cmd to satisfy checkpatch.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agonet: Xilinx: fix error return code
Julia Lawall [Mon, 29 Dec 2014 17:04:36 +0000 (18:04 +0100)]
net: Xilinx: fix error return code

Return a negative error code on failure.

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

// <smpl>
@@
identifier ret; expression e1,e2;
@@
(
if (\(ret < 0\|ret != 0\))
 { ... return ret; }
|
ret = 0
)
... when != ret = e1
    when != &ret
*if(...)
{
  ... when != ret = e2
      when forall
 return ret;
}
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoMerge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net
David S. Miller [Thu, 1 Jan 2015 00:17:03 +0000 (19:17 -0500)]
Merge branch 'master' of git://git./linux/kernel/git/jkirsher/net

Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2014-12-31

This series contains updates to fixes for e100, igb and i40e.

John Linville fixes a typo in e100 that has been around for some time,
where an attempted revert actually inverted the test for eeprom_mdix_enabled.

Todd fixes up a code comment that should have been removed back in 2007.

Joe Perches fixes a possible memory leak in i40e which was reported by
Dan Carpenter using smatch.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
9 years agoi40e: Fix possible memory leak in i40e_dbg_dump_desc
Joe Perches [Mon, 8 Dec 2014 04:28:39 +0000 (04:28 +0000)]
i40e: Fix possible memory leak in i40e_dbg_dump_desc

I didn't notice that return in the code, fix it by
adding a goto out instead to free the memory.

Fixes:

> New smatch warnings:
> drivers/net/ethernet/intel/i40e/i40e_debugfs.c:832 i40e_dbg_dump_desc() warn: possible memory leak of 'ring'

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
9 years agoMerge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit
Linus Torvalds [Wed, 31 Dec 2014 22:52:18 +0000 (14:52 -0800)]
Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/audit

Pull audit fix from Paul Moore:
 "One audit patch to resolve a panic/oops when recording filenames in
  the audit log, see the mail archive link below.

  The fix isn't as nice as I would like, as it involves an allocate/copy
  of the filename, but it solves the problem and the overhead should
  only affect users who have configured audit rules involving file
  names.

  We'll revisit this issue with future kernels in an attempt to make
  this suck less, but in the meantime I think this fix should go into
  the next release of v3.19-rcX.

  [ https://marc.info/?t=141986927600001&r=1&w=2 ]"

* 'upstream' of git://git.infradead.org/users/pcmoore/audit:
  audit: create private file name copies when auditing inodes

9 years agoRevert "Input: atmel_mxt_ts - use deep sleep mode when stopped"
Linus Torvalds [Wed, 31 Dec 2014 20:59:34 +0000 (12:59 -0800)]
Revert "Input: atmel_mxt_ts - use deep sleep mode when stopped"

This reverts commit 9d469d033d135d80742a4e39e6bbb4519dd5eee1.

It breaks the Chromebook Pixel touchpad (and touchscreen).

Reported-by: Dirk Hohndel <dirk@hohndel.org>
Bisected-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nick Dyer <nick.dyer@itdev.co.uk>
Cc: Benson Leung <bleung@chromium.org>
Cc: Yufeng Shen <miletus@chromium.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: stable@vger.kernel.org # v3.16+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agoigb: Remove unneeded FIXME
Todd Fujinaka [Thu, 27 Nov 2014 01:00:02 +0000 (01:00 +0000)]
igb: Remove unneeded FIXME

Remove a FIXME comment that was missed in a commit on 1/2007.

Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Reported-by: nick <xerofoify@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
9 years agoe100: fix typo in MDI/MDI-X eeprom check in e100_phy_init
John W. Linville [Sat, 15 Nov 2014 01:19:53 +0000 (01:19 +0000)]
e100: fix typo in MDI/MDI-X eeprom check in e100_phy_init

Although it doesn't explicitly say so, commit 60ffa478759f39a2 ("e100:
Fix MDIO/MDIO-X") appears to be intended to revert the earlier commit
648951451e6d2d53 ("e100: fixed e100 MDI/MDI-X issues").  However,
careful examination reveals that the attempted revert actually
_inverted_ the test for eeprom_mdix_enabled.  That is bound to program
a few PHYs incorrectly...

https://bugzilla.redhat.com/show_bug.cgi?id=1156417

Signed-off-by: "John W. Linville" <linville@tuxdriver.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
9 years agoMerge tag 'nios2-fixes-v3.19-rc3' of git://git.rocketboards.org/linux-socfpga-next
Linus Torvalds [Wed, 31 Dec 2014 17:44:44 +0000 (09:44 -0800)]
Merge tag 'nios2-fixes-v3.19-rc3' of git://git.rocketboards.org/linux-socfpga-next

Pull arch/nios2 fixes from Ley Foon Tan:

 - fix compilation error when enable CONFIG_PREEMPT

 - initialize cpuinfo.mmu variable supplied by the device tree

* tag 'nios2-fixes-v3.19-rc3' of git://git.rocketboards.org/linux-socfpga-next:
  nios2: Use preempt_schedule_irq
  nios2: Initialize cpuinfo.mmu

9 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Linus Torvalds [Wed, 31 Dec 2014 17:16:17 +0000 (09:16 -0800)]
Merge git://git./linux/kernel/git/herbert/crypto-2.6

Pull crypto fix from Herbert Xu:
 "Fix a use-after-free crash in the user-space crypto API"

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: af_alg - fix backlog handling

9 years agonios2: Use preempt_schedule_irq
Tobias Klauser [Wed, 31 Dec 2014 02:53:11 +0000 (10:53 +0800)]
nios2: Use preempt_schedule_irq

Follow aa0d53260596 ("ia64: Use preempt_schedule_irq") and use
preempt_schedule_irq instead of enabling/disabling interrupts and
messing around with PREEMPT_ACTIVE in the nios2 low-level preemption
code ourselves. Also get rid of the now needless re-check for
TIF_NEED_RESCHED, preempt_schedule_irq will already take care of
rescheduling.

This also fixes the following build error when building with
CONFIG_PREEMPT:

arch/nios2/kernel/built-in.o: In function `need_resched':
arch/nios2/kernel/entry.S:374: undefined reference to `PREEMPT_ACTIVE'

Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>
9 years agonios2: Initialize cpuinfo.mmu
Walter Goossens [Wed, 31 Dec 2014 01:29:07 +0000 (09:29 +0800)]
nios2: Initialize cpuinfo.mmu

This patch initializes the mmu field of the cpuinfo structure to the
value supplied by the devicetree.

Signed-off-by: Walter Goossens <waltergoossens@home.nl>
Acked-by: Ley Foon Tan <lftan@altera.com>
9 years agoMerge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm...
Linus Torvalds [Wed, 31 Dec 2014 01:13:13 +0000 (17:13 -0800)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "A very small set of fixes for 3.19, as everyone was out.

  The clocksource patch was something I missed for the merge window
  after the change that broke arm64 was merged through arm-soc.  The
  other two patches are a fix for an undetected merge problem in mvebu
  and a defconfig change to make some exynos boards work with the normal
  multi_v7_defconfig"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  Add USB_EHCI_EXYNOS to multi_v7_defconfig
  ARM: mvebu: Fix pinctrl configuration for Armada 370 DB
  clocksource: arch_timer: Only use the virtual counter (CNTVCT) on arm64

9 years agoMerge tag 'fbdev-fixes-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba...
Linus Torvalds [Wed, 31 Dec 2014 01:04:56 +0000 (17:04 -0800)]
Merge tag 'fbdev-fixes-3.19' of git://git./linux/kernel/git/tomba/linux

Pull fbdev fixes from Tomi Valkeinen:

 - Fix regression with Nokia N900 display

 - Fix crash on fbdev using freed __initdata logos

 - Fix fb_deferred_io_fsync() return value.

* tag 'fbdev-fixes-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
  OMAPDSS: SDI: fix output port_num
  video/fbdev: fix defio's fsync
  video/logo: prevent use of logos after they have been freed
  OMAPDSS: pll: NULL dereference in error handling
  OMAPDSS: HDMI: remove double initializer entries

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Linus Torvalds [Wed, 31 Dec 2014 00:59:59 +0000 (16:59 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

Pull input layer fixes from Dmitry Torokhov:
 "Fixes for v7 protocol for ALPS devices and few other driver fixes.

  Also users can request input events to be stamped with boot time
  timestamps, in addition to real and monotonic timestamps"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: hil_kbd - fix incorrect use of init_completion
  Input: alps - v7: document the v7 touchpad packet protocol
  Input: alps - v7: fix finger counting for > 2 fingers on clickpads
  Input: alps - v7: sometimes a single touch is reported in mt[1]
  Input: alps - v7: ignore new packets
  Input: evdev - add CLOCK_BOOTTIME support
  Input: psmouse - expose drift duration for IBM trackpoints
  Input: stmpe - bias keypad columns properly
  Input: stmpe - enforce device tree only mode
  mfd: stmpe: add pull up/down register offsets for STMPE
  Input: optimize events_per_packet count calculation
  Input: edt-ft5x06 - fixed a macro coding style issue
  Input: gpio_keys - replace timer and workqueue with delayed workqueue
  Input: gpio_keys - allow separating gpio and irq in device tree

9 years agoRevert "cfg80211: make WEXT compatibility unselectable"
Jiri Kosina [Tue, 30 Dec 2014 22:52:20 +0000 (23:52 +0100)]
Revert "cfg80211: make WEXT compatibility unselectable"

This reverts commit 24a0aa212ee2dbe44360288684478d76a8e20a0a.

It's causing severe userspace breakage.  Namely, all the utilities from
wireless-utils which are relying on CONFIG_WEXT (which means tools like
'iwconfig', 'iwlist', etc) are not working anymore.  There is a 'iw'
utility in newer wireless-tools, which is supposed to be a replacement
for all the "deprecated" binaries, but it's far away from being
massively adopted.

Please see [1] for example of the userspace breakage this is causing.

In addition to that, Larry Finger reports [2] that this patch is also
causing ipw2200 driver being impossible to build.

To me this clearly shows that CONFIG_WEXT is far, far away from being
"deprecated enough" to be removed.

[1] http://thread.gmane.org/gmane.linux.kernel/1857010
[2] http://thread.gmane.org/gmane.linux.network/343688

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 years agoipmi: Fix compile warning with tv_usec
Corey Minyard [Tue, 30 Dec 2014 19:31:45 +0000 (13:31 -0600)]
ipmi: Fix compile warning with tv_usec

It's not a long int on all arches.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
9 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Tue, 30 Dec 2014 18:45:47 +0000 (10:45 -0800)]
Merge git://git./linux/kernel/git/davem/net

Pull networking fixes from David Miller:

 1) Fix double SKB free in bluetooth 6lowpan layer, from Jukka Rissanen.

 2) Fix receive checksum handling in enic driver, from Govindarajulu
    Varadarajan.

 3) Fix NAPI poll list corruption in virtio_net and caif_virtio, from
    Herbert Xu.  Also, add code to detect drivers that have this mistake
    in the future.

 4) Fix doorbell endianness handling in mlx4 driver, from Amir Vadai.

 5) Don't clobber IP6CB() before xfrm6_policy_check() is called in TCP
    input path,f rom Nicolas Dichtel.

 6) Fix MPLS action validation in openvswitch, from Pravin B Shelar.

 7) Fix double SKB free in vxlan driver, also from Pravin.

 8) When we scrub a packet, which happens when we are switching the
    context of the packet (namespace, etc.), we should reset the
    secmark.  From Thomas Graf.

 9) ->ndo_gso_check() needs to do more than return true/false, it also
    has to allow the driver to clear netdev feature bits in order for
    the caller to be able to proceed properly.  From Jesse Gross.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (62 commits)
  genetlink: A genl_bind() to an out-of-range multicast group should not WARN().
  netlink/genetlink: pass network namespace to bind/unbind
  ne2k-pci: Add pci_disable_device in error handling
  bonding: change error message to debug message in __bond_release_one()
  genetlink: pass multicast bind/unbind to families
  netlink: call unbind when releasing socket
  netlink: update listeners directly when removing socket
  genetlink: pass only network namespace to genl_has_listeners()
  netlink: rename netlink_unbind() to netlink_undo_bind()
  net: Generalize ndo_gso_check to ndo_features_check
  net: incorrect use of init_completion fixup
  neigh: remove next ptr from struct neigh_table
  net: xilinx: Remove unnecessary temac_property in the driver
  net: phy: micrel: use generic config_init for KSZ8021/KSZ8031
  net/core: Handle csum for CHECKSUM_COMPLETE VXLAN forwarding
  openvswitch: fix odd_ptr_err.cocci warnings
  Bluetooth: Fix accepting connections when not using mgmt
  Bluetooth: Fix controller configuration with HCI_QUIRK_INVALID_BDADDR
  brcmfmac: Do not crash if platform data is not populated
  ipw2200: select CFG80211_WEXT
  ...

9 years agoMerge tag 'linux-kselftest-3.19-fixes' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Tue, 30 Dec 2014 18:36:59 +0000 (10:36 -0800)]
Merge tag 'linux-kselftest-3.19-fixes' of git://git./linux/kernel/git/shuah/linux-kselftest

Pull kselftest fix from Shuah Khan:
 "Fix exec test compile warnings"

* tag 'linux-kselftest-3.19-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/exec: Use %zu to format size_t

9 years agoSCSI: fix regression in scsi_send_eh_cmnd()
Alan Stern [Fri, 21 Nov 2014 15:44:49 +0000 (10:44 -0500)]
SCSI: fix regression in scsi_send_eh_cmnd()

Commit ac61d1955934 (scsi: set correct completion code in
scsi_send_eh_cmnd()) introduced a bug.  It changed the stored return
value from a queuecommand call, but it didn't take into account that
the return value was used again later on.  This patch fixes the bug by
changing the later usage.

There is a big comment in the middle of scsi_send_eh_cmnd() which
does a good job of explaining how the routine works.  But it mentions
a "rtn = FAILURE" value that doesn't exist in the code.  This patch
adjusts the code to match the comment (I assume the comment is right
and the code is wrong).

This fixes Bugzilla #88341.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Андрей Аладьев <aladjev.andrew@gmail.com>
Tested-by: Андрей Аладьев <aladjev.andrew@gmail.com>
Fixes: ac61d19559349e205dad7b5122b281419aa74a82
Acked-by: Hannes Reinecke <hare@suse.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
9 years agoALSA: pcm: Fix kerneldoc for params_*() functions
Lars-Peter Clausen [Mon, 29 Dec 2014 18:41:40 +0000 (19:41 +0100)]
ALSA: pcm: Fix kerneldoc for params_*() functions

Fix a copy and paste error in the kernel doc description for the params_*()
functions.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
9 years agoMerge tag 'asoc-fix-v3.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broon...
Takashi Iwai [Tue, 30 Dec 2014 15:17:13 +0000 (16:17 +0100)]
Merge tag 'asoc-fix-v3.19-rc2' of git://git./linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v3.19

A few fixes for v3.19, a few driver specifics and one core fix which
fixes a boot crash on OMAP if deferred probing kicks in due to
attempting to modify static data.

9 years agoAdd USB_EHCI_EXYNOS to multi_v7_defconfig
Steev Klimaszewski [Tue, 30 Dec 2014 06:55:48 +0000 (00:55 -0600)]
Add USB_EHCI_EXYNOS to multi_v7_defconfig

Currently we enable Exynos devices in the multi v7 defconfig, however, when
testing on my ODROID-U3, I noticed that USB was not working.  Enabling this
option causes USB to work, which enables networking support as well since the
ODROID-U3 has networking on the USB bus.

[arnd] Support for odroid-u3 was added in 3.10, so it would be nice to
backport this fix at least that far.

Signed-off-by: Steev Klimaszewski <steev@gentoo.org>
Cc: stable@vger.kernel.org # 3.10
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
9 years agoMerge tag 'mvebu-fixes-3.19' of git://git.infradead.org/linux-mvebu into fixes
Arnd Bergmann [Tue, 30 Dec 2014 10:17:07 +0000 (11:17 +0100)]
Merge tag 'mvebu-fixes-3.19' of git://git.infradead.org/linux-mvebu into fixes

Pull "Fixes for 3.19" from Andrew Lunn:

Jason is taking a back seat this cycle and i'm doing all the patch
wrangling for mvebu.

* tag 'mvebu-fixes-3.19' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: Fix pinctrl configuration for Armada 370 DB

Also update to Linux 3.19-rc1, which this was based on.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
9 years agoaudit: create private file name copies when auditing inodes
Paul Moore [Tue, 30 Dec 2014 14:26:21 +0000 (09:26 -0500)]
audit: create private file name copies when auditing inodes

Unfortunately, while commit 4a928436 ("audit: correctly record file
names with different path name types") fixed a problem where we were
not recording filenames, it created a new problem by attempting to use
these file names after they had been freed.  This patch resolves the
issue by creating a copy of the filename which the audit subsystem
frees after it is done with the string.

At some point it would be nice to resolve this issue with refcounts,
or something similar, instead of having to allocate/copy strings, but
that is almost surely beyond the scope of a -rcX patch so we'll defer
that for later.  On the plus side, only audit users should be impacted
by the string copying.

Reported-by: Toralf Foerster <toralf.foerster@gmx.de>
Signed-off-by: Paul Moore <pmoore@redhat.com>
9 years agofnic: IOMMU Fault occurs when IO and abort IO is out of order
Anil Chintalapati (achintal) [Tue, 23 Dec 2014 19:40:00 +0000 (19:40 +0000)]
fnic: IOMMU Fault occurs when IO and abort IO is out of order

When I/O is aborted by mid-layer, fnic FW will complete the I/O before
completing the abort task. In some cases abort request is completed before
the I/O, which could lead to inconsistent driver and firmware states.
In this case firmware reset would clear the inconsistent state.

Signed-off-by: Anil Chintalapati <achintal@cisco.com>
Signed-off-by: Sesidhar Baddela <sebaddel@cisco.com>
Signed-off-by: Hiral Shah <hishah@cisco.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
9 years agosd: tweak discard heuristics to work around QEMU SCSI issue
Martin K. Petersen [Fri, 5 Dec 2014 13:58:03 +0000 (08:58 -0500)]
sd: tweak discard heuristics to work around QEMU SCSI issue

7985090aa020 changed the discard heuristics to give preference to the
WRITE SAME commands that (unlike UNMAP) guarantee deterministic results.

Ming Lei discovered that QEMU SCSI's WRITE SAME implementation
internally relied on limits that were only communicated for the UNMAP
case. And therefore discard commands backed by WRITE SAME would fail.

Tweak the heuristics so we still pick UNMAP in the LBPRZ=0 case and only
prefer the WRITE SAME variants if the device has the LBPRZ flag set.

Reported-by: Ming Lei <ming.lei@canonical.com>
Tested-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
9 years agopinctrl: rockchip: Fix enable/disable/mask/unmask
Doug Anderson [Wed, 19 Nov 2014 22:51:33 +0000 (14:51 -0800)]
pinctrl: rockchip: Fix enable/disable/mask/unmask

The Rockchip pinctrl driver was only implementing the "mask" and
"unmask" operations though the hardware actually has two distinct
things: enable/disable and mask/unmask.  It was implementing the
"mask" operations as a hardware enable/disable and always leaving all
interrupts unmasked.

I believe that the old system had some downsides, specifically:
- (Untested) if an interrupt went off while interrupts were "masked"
  it would be lost.  Now it will be kept track of.
- If someone wanted to change an interrupt back into a GPIO (is such a
  thing sensible?) by calling irq_disable() it wouldn't actually take
  effect.  That's because Linux does some extra optimizations when
  there's no true "disable" function: it does a lazy mask.

Let's actually implement enable/disable/mask/unmask properly.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agopinctrl: rockchip: Handle wakeup pins
Doug Anderson [Wed, 19 Nov 2014 22:51:32 +0000 (14:51 -0800)]
pinctrl: rockchip: Handle wakeup pins

The rockchip pinctrl driver was using irq_gc_set_wake() as its
implementation of irq_set_wake() but was totally ignoring everything
that irq_gc_set_wake() did (which is to upkeep gc->wake_active).

Let's fix that by setting gc->wake_active as GPIO_INTEN at suspend
time and restoring GPIO_INTEN at resume time.

NOTE a few quirks when thinking about this patch:
- Rockchip pinctrl hardware supports both "disable/enable" and
  "mask/unmask".  Right now we only use "disable/enable" and present
  those to Linux as "mask/unmask".  This should be OK because
  enable/disable is optional and Linux will implement it in terms of
  mask/unmask.  At the moment we always tell hardware all interrupts
  are unmasked (the boot default).
- At suspend time Linux tries to call "disable" on all interrupts and
  also enables wakeup on all wakeup interrupts.  One would think that
  since "disable" is implemented as "mask" when "disable" isn't
  provided and that since we were ignoring gc->wake_active that
  nothing would have woken us up.  That's not the case since Linux
  "optimizes" things and just leaves interrutps unmasked, assuming it
  could mask them later when they go off.  That meant that at suspend
  time all interrupts were actually being left enabled.

With this patch random non-wakeup interrupts no longer wake the system
up.  Wakeup interrupts still wake the system up.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
9 years agoOMAPDSS: SDI: fix output port_num
Tomi Valkeinen [Mon, 29 Dec 2014 07:57:11 +0000 (09:57 +0200)]
OMAPDSS: SDI: fix output port_num

After the commit ef691ff48bc8 (OMAPDSS: DT: Get source endpoint by
matching reg-id) we look for the SDI output using the port number.
However, the SDI driver doesn't set the port number, which causes the
SDI display to not initialize.

Fix this by setting the SDI port number to 1. We use a hardcoded value,
as SDI was used only on OMAP3 and it's always port number 1 there.

Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Reported-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
9 years agovideo/fbdev: fix defio's fsync
Tomi Valkeinen [Fri, 19 Dec 2014 11:55:41 +0000 (13:55 +0200)]
video/fbdev: fix defio's fsync

fb_deferred_io_fsync() returns the value of schedule_delayed_work() as
an error code, but schedule_delayed_work() does not return an error. It
returns true/false depending on whether the work was already queued.

Fix this by ignoring the return value of schedule_delayed_work().

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: stable@vger.kernel.org
9 years agoMerge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Tue, 30 Dec 2014 05:09:57 +0000 (21:09 -0800)]
Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6

Pull CIFS fixes from Steve French:
 "A set of three minor cifs fixes"

* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: make new inode cache when file type is different
  Fix signed/unsigned pointer warning
  Convert MessageID in smb2_hdr to LE

9 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Linus Torvalds [Tue, 30 Dec 2014 04:43:10 +0000 (20:43 -0800)]
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-fs

Pull UDF & isofs fixes from Jan Kara:
 "A couple of UDF fixes of handling of corrupted media and one iso9660
  fix of the same"

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  udf: Reduce repeated dereferences
  udf: Check component length before reading it
  udf: Check path length when reading symlink
  udf: Verify symlink size before loading it
  udf: Verify i_size when loading inode
  isofs: Fix unchecked printing of ER records