| Commit message (Collapse) | Author | Age | Files | Lines |
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more changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Pull drm fixes from Dave Airlie:
"These came in late last week, I wanted to look over the mst one before
forwarding, but it seems good.
Just three i915 and one MST fix"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/i915: Commit planes on each crtc separately.
drm/i915: calculate primary visibility changes instead of calling from set_config
drm/i915: Only dither on 6bpc panels
drm/dp/mst: Remove port after removing connector.
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git://anongit.freedesktop.org/drm-intel into drm-next
single MST fixes from Maarten.
* tag 'topic/drm-fixes-2015-08-14' of git://anongit.freedesktop.org/drm-intel:
drm/dp/mst: Remove port after removing connector.
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The port is removed synchronously, but the connector delayed.
This causes a use after free which can cause a kernel BUG with
slug_debug=FPZU. This is fixed by freeing the port after the
connector.
This fixes a regression introduced with
6b8eeca65b18ae77e175cc2b6571731f0ee413bf
"drm/dp/mst: close deadlock in connector destruction."
Cc: stable@vger.kernel.org
Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata fixes from Tejun Heo:
"Three minor device-specific fixes and revert of NCQ autosense added
during this -rc1.
It turned out that NCQ autosense as currently implemented interferes
with the usual error handling behavior. It will be revisited in the
near future"
* 'for-4.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
ata: ahci_brcmstb: Fix misuse of IS_ENABLED
sata_sx4: Check return code from pdc20621_i2c_read()
Revert "libata: Implement NCQ autosense"
Revert "libata: Implement support for sense data reporting"
Revert "libata-eh: Set 'information' field for autosense"
ata: ahci_brcmstb: Fix warnings with CONFIG_PM_SLEEP=n
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This reverts commit 42b966fbf35da9c87f08d98f9b8978edf9e717cf.
As implemented, ACS-4 sense reporting for ATA devices bypasses error
diagnosis and handling in libata degrading EH behavior significantly.
Revert the related changes for now.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Hannes Reinecke <hare@suse.de>
Cc: stable@vger.kernel.org #v4.1+
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This reverts commit fe7173c206de63fc28475ee6ae42ff95c05692de.
As implemented, ACS-4 sense reporting for ATA devices bypasses error
diagnosis and handling in libata degrading EH behavior significantly.
Revert the related changes for now.
ATA_ID_COMMAND_SET_3/4 constants are not reverted as they're used by
later changes.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Hannes Reinecke <hare@suse.de>
Cc: stable@vger.kernel.org #v4.1+
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This reverts commit a1524f226a02aa6edebd90ae0752e97cfd78b159.
As implemented, ACS-4 sense reporting for ATA devices bypasses error
diagnosis and handling in libata degrading EH behavior significantly.
Revert the related changes for now.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Hannes Reinecke <hare@suse.de>
Cc: stable@vger.kernel.org #v4.1+
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Pull networking fixes from David Miller:
1) Workaround hw bug when acquiring PCI bos ownership of iwlwifi
devices, from Emmanuel Grumbach.
2) Falling back to vmalloc in conntrack should not emit a warning, from
Pablo Neira Ayuso.
3) Fix NULL deref when rtlwifi driver is used as an AP, from Luis
Felipe Dominguez Vega.
4) Rocker doesn't free netdev on device removal, from Ido Schimmel.
5) UDP multicast early sock demux has route handling races, from Eric
Dumazet.
6) Fix L4 checksum handling in openvswitch, from Glenn Griffin.
7) Fix use-after-free in skb_set_peeked, from Herbert Xu.
8) Don't advertize NETIF_F_FRAGLIST in virtio_net driver, this can lead
to fraglists longer than the driver can support. From Jason Wang.
9) Fix mlx5 on non-4k-pagesize systems, from Carol L Soto.
10) Fix interrupt storm in bna driver, from Ivan Vecera.
11) Don't propagate -EBUSY from netlink_insert(), from Daniel Borkmann.
12) Fix inet request sock leak, from Eric Dumazet.
13) Fix TX interrupt masking and marking in TX descriptors of fs_enet
driver, from LEROY Christophe.
14) Get rid of rule optimizer in gianfar driver, it's buggy and unlikely
to get fixed any time soon. From Jakub Kicinski
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (61 commits)
cosa: missing error code on failure in probe()
gianfar: remove faulty filer optimizer
gianfar: correct list membership accounting
gianfar: correct filer table writing
bonding: Gratuitous ARP gets dropped when first slave added
net: dsa: Do not override PHY interface if already configured
net: fs_enet: mask interrupts for TX partial frames.
net: fs_enet: explicitly remove I flag on TX partial frames
inet: fix possible request socket leak
inet: fix races with reqsk timers
mkiss: Fix error handling in mkiss_open()
bnx2x: Free NVRAM lock at end of each page
bnx2x: Prevent null pointer dereference on SKB release
cxgb4: missing curly braces in t4_setup_debugfs()
net-timestamp: Update skb_complete_tx_timestamp comment
ipv6: don't reject link-local nexthop on other interface
netlink: make sure -EBUSY won't escape from netlink_insert
bna: fix interrupts storm caused by erroneous packets
net: mvpp2: replace TX coalescing interrupts with hrtimer
net: mvpp2: enable proper per-CPU TX buffers unmapping
...
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After "62bccb8 net-timestamp: Make the clone operation stand-alone from phy
timestamping" the hwtstamps parameter of skb_complete_tx_timestamp() may no
longer be NULL.
Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
Cc: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"The only bulk changes in this request is ABI updates for ASoC topology
API. It's a new API that was introduced in 4.2, and we'd like to
avoid ABI change after the release, so it's taken now. As there is no
real in-tree user for this API, it should be fairly safe.
Other than that, the usual small fixes are found in various drivers:
ASoC cs4265, rt5645, intel-sst, firewire, oxygen and HD-audio"
* tag 'sound-4.2-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: topology: Add private data type and bump ABI version to 3
ASoC: topology: Add ops support to byte controls UAPI
ASoC: topology: Update TLV support so we can support more TLV types
ASoC: topology: add private data to manifest
ASoC: topology: Add subsequence in topology
ALSA: hda - one Dell machine needs the headphone white noise fixup
ALSA: fireworks/firewire-lib: add support for recent firmware quirk
Revert "ALSA: fireworks: add support for AudioFire2 quirk"
ASoC: topology: fix typo in soc_tplg_kcontrol_bind_io()
ALSA: HDA: Dont check return for snd_hdac_chip_readl
ALSA: HDA: Fix stream assignment for host in decoupled mode
ASoC: rt5645: Fix lost pin setting for DMIC1
ALSA: oxygen: Fix logical-not-parentheses warning
ASoC: Intel: sst_byt: fix initialize 'NULL device *' issue
ASoC: Intel: haswell: fix initialize 'NULL device *' issue
ASoC: cs4265: Fix setting dai format for Left/Right Justified
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'asoc/fix/topology' into asoc-linus
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Add ID for standalone private data object types and bump ABI version to
3 in order to userpsace features.
Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Add UAPI support for setting byte control ops. Rename the ops structure
to be more generic so it can be sued by other objects too.
Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Currently the TLV topology structure is targeted at only supporting the
DB scale data. This patch extends support for the other TLV types so they
can be easily added at a later stage.
TLV structure is moved to common topology control header since it's a
common field for controls and can be processed in a general way.
Users must set a proper access flag for a control since it's used to
decide if the TLV field is valid and if a TLV callback is needed.
Removed the following fields from topology TLV struct:
- size/count: type can decide the size.
- numid: not needed to initialize TLV for kcontrol.
- data: replaced by the type specific struct.
Added TLV structure to generic control header and removed TLV structure
from mixer control.
Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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ASoC: Fixes for v4.2
A lot of small fixes here, a few to the core:
- Fix for binding DAPM stream widgets on devices with prefixes assigned
to them
- Minor fixes for the newly added topology interfaces
- Locking and memory leak fixes for DAPM
- Driver specific fixes
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The topology file manifest should include a private data field. This
allows vendors to specify vendor data in the manifest, like
timestamps, hashes, additional information for removing platform
configuration out of drivers and making these configurable per platform
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Some widgets may need sorting within, So add this support in topology.
Signed-off-by: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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git://anongit.freedesktop.org/drm-intel
Pull drm fixes from Daniel Vetter:
"One i915 regression fix and a drm core one since Dave's not around,
both introduced in 4.2 so not cc: stable.
The fix for the warning Ted reported isn't in here yet since he didn't
yet supply a tested-by and I can't repro this one myself (it's in
fixup code that needs firmware doing something i915 wouldn't do)"
* tag 'drm-intel-fixes-2015-08-07' of git://anongit.freedesktop.org/drm-intel:
drm/vblank: Use u32 consistently for vblank counters
drm/i915: Allow parsing of variable size child device entries from VBT
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In
commit 99264a61dfcda41d86d0960cf2d4c0fc2758a773
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed Apr 15 19:34:43 2015 +0200
drm/vblank: Fixup and document timestamp update/read barriers
I've switched vblank->count from atomic_t to unsigned long and
accidentally created an integer comparison bug in
drm_vblank_count_and_time since vblanke->count might overflow the u32
local copy and hence the retry loop never succeed.
Fix this by consistently using u32.
Cc: Michel Dänzer <michel@daenzer.net>
Reported-by: Michel Dänzer <michel@daenzer.net>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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The race condition addressed in commit add05cecef80 ("mm: soft-offline:
don't free target page in successful page migration") was not closed
completely, because that can happen not only for soft-offline, but also
for hard-offline. Consider that a slab page is about to be freed into
buddy pool, and then an uncorrected memory error hits the page just
after entering __free_one_page(), then VM_BUG_ON_PAGE(page->flags &
PAGE_FLAGS_CHECK_AT_PREP) is triggered, despite the fact that it's not
necessary because the data on the affected page is not consumed.
To solve it, this patch drops __PG_HWPOISON from page flag checks at
allocation/free time. I think it's justified because __PG_HWPOISON
flags is defined to prevent the page from being reused, and setting it
outside the page's alloc-free cycle is a designed behavior (not a bug.)
For recent months, I was annoyed about BUG_ON when soft-offlined page
remains on lru cache list for a while, which is avoided by calling
put_page() instead of putback_lru_page() in page migration's success
path. This means that this patch reverts a major change from commit
add05cecef80 about the new refcounting rule of soft-offlined pages, so
"reuse window" revives. This will be closed by a subsequent patch.
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Dean Nelson <dnelson@redhat.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: Hugh Dickins <hughd@google.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Dave Hansen reported the following;
My laptop has been behaving strangely with 4.2-rc2. Once I log
in to my X session, I start getting all kinds of strange errors
from applications and see this in my dmesg:
VFS: file-max limit 8192 reached
The problem is that the file-max is calculated before memory is fully
initialised and miscalculates how much memory the kernel is using. This
patch recalculates file-max after deferred memory initialisation. Note
that using memory hotplug infrastructure would not have avoided this
problem as the value is not recalculated after memory hot-add.
4.1: files_stat.max_files = 6582781
4.2-rc2: files_stat.max_files = 8192
4.2-rc2 patched: files_stat.max_files = 6562467
Small differences with the patch applied and 4.1 but not enough to matter.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Reported-by: Dave Hansen <dave.hansen@intel.com>
Cc: Nicolai Stange <nicstange@gmail.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Alex Ng <alexng@microsoft.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI fix from Bjorn Helgaas:
"This is a trivial fix for a change that broke user program compilation
(QEMU in this case)"
* tag 'pci-v4.2-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: Restore PCI_MSIX_FLAGS_BIRMASK definition
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09a2c73ddfc7 ("PCI: Remove unused PCI_MSIX_FLAGS_BIRMASK definition")
removed PCI_MSIX_FLAGS_BIRMASK from an exported header because it was
unused in the kernel. But that breaks user programs that were using it
(QEMU in particular).
Restore the PCI_MSIX_FLAGS_BIRMASK definition.
[bhelgaas: changelog]
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: stable@vger.kernel.org # v3.13+
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With legacy helpers all the routing was already set up when calling
best_encoder and so could be inspected. But with atomic it's staged,
hence we need a new atomic compliant callback for drivers which need
to inspect the requested state and can't just decided the best encoder
statically.
This is needed to fix up i915 dp mst where we need to pick the right
encoder depending upon the requested CRTC for the connector.
v2: Don't forget to amend the kerneldoc
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Theodore Ts'o <tytso@mit.edu>
Acked-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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Pull networking fixes from David Miller:
1) Must teardown SR-IOV before unregistering netdev in igb driver, from
Alex Williamson.
2) Fix ipv6 route unreachable crash in IPVS, from Alex Gartrell.
3) Default route selection in ipv4 should take the prefix length, table
ID, and TOS into account, from Julian Anastasov.
4) sch_plug must have a reset method in order to purge all buffered
packets when the qdisc is reset, likewise for sch_choke, from WANG
Cong.
5) Fix deadlock and races in slave_changelink/br_setport in bridging.
From Nikolay Aleksandrov.
6) mlx4 bug fixes (wrong index in port even propagation to VFs,
overzealous BUG_ON assertion, etc.) from Ido Shamay, Jack
Morgenstein, and Or Gerlitz.
7) Turn off klog message about SCTP userspace interface compat that
makes no sense at all, from Daniel Borkmann.
8) Fix unbounded restarts of inet frag eviction process, causing NMI
watchdog soft lockup messages, from Florian Westphal.
9) Suspend/resume fixes for r8152 from Hayes Wang.
10) Fix busy loop when MSG_WAITALL|MSG_PEEK is used in TCP recv, from
Sabrina Dubroca.
11) Fix performance regression when removing a lot of routes from the
ipv4 routing tables, from Alexander Duyck.
12) Fix device leak in AF_PACKET, from Lars Westerhoff.
13) AF_PACKET also has a header length comparison bug due to signedness,
from Alexander Drozdov.
14) Fix bug in EBPF tail call generation on x86, from Daniel Borkmann.
15) Memory leaks, TSO stats, watchdog timeout and other fixes to
thunderx driver from Sunil Goutham and Thanneeru Srinivasulu.
16) act_bpf can leak memory when replacing programs, from Daniel
Borkmann.
17) WOL packet fixes in gianfar driver, from Claudiu Manoil.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (79 commits)
stmmac: fix missing MODULE_LICENSE in stmmac_platform
gianfar: Enable device wakeup when appropriate
gianfar: Fix suspend/resume for wol magic packet
gianfar: Fix warning when CONFIG_PM off
act_pedit: check binding before calling tcf_hash_release()
net: sk_clone_lock() should only do get_net() if the parent is not a kernel socket
net: sched: fix refcount imbalance in actions
r8152: reset device when tx timeout
r8152: add pre_reset and post_reset
qlcnic: Fix corruption while copying
act_bpf: fix memory leaks when replacing bpf programs
net: thunderx: Fix for crash while BGX teardown
net: thunderx: Add PCI driver shutdown routine
net: thunderx: Fix crash when changing rss with mutliple traffic flows
net: thunderx: Set watchdog timeout value
net: thunderx: Wakeup TXQ only if CQE_TX are processed
net: thunderx: Suppress alloc_pages() failure warnings
net: thunderx: Fix TSO packet statistic
net: thunderx: Fix memory leak when changing queue count
net: thunderx: Fix RQ_DROP miscalculation
...
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Since commit 55334a5db5cd ("net_sched: act: refuse to remove bound action
outside"), we end up with a wrong reference count for a tc action.
Test case 1:
FOO="1,6 0 0 4294967295,"
BAR="1,6 0 0 4294967294,"
tc filter add dev foo parent 1: bpf bytecode "$FOO" flowid 1:1 \
action bpf bytecode "$FOO"
tc actions show action bpf
action order 0: bpf bytecode '1,6 0 0 4294967295' default-action pipe
index 1 ref 1 bind 1
tc actions replace action bpf bytecode "$BAR" index 1
tc actions show action bpf
action order 0: bpf bytecode '1,6 0 0 4294967294' default-action pipe
index 1 ref 2 bind 1
tc actions replace action bpf bytecode "$FOO" index 1
tc actions show action bpf
action order 0: bpf bytecode '1,6 0 0 4294967295' default-action pipe
index 1 ref 3 bind 1
Test case 2:
FOO="1,6 0 0 4294967295,"
tc filter add dev foo parent 1: bpf bytecode "$FOO" flowid 1:1 action ok
tc actions show action gact
action order 0: gact action pass
random type none pass val 0
index 1 ref 1 bind 1
tc actions add action drop index 1
RTNETLINK answers: File exists [...]
tc actions show action gact
action order 0: gact action pass
random type none pass val 0
index 1 ref 2 bind 1
tc actions add action drop index 1
RTNETLINK answers: File exists [...]
tc actions show action gact
action order 0: gact action pass
random type none pass val 0
index 1 ref 3 bind 1
What happens is that in tcf_hash_check(), we check tcf_common for a given
index and increase tcfc_refcnt and conditionally tcfc_bindcnt when we've
found an existing action. Now there are the following cases:
1) We do a late binding of an action. In that case, we leave the
tcfc_refcnt/tcfc_bindcnt increased and are done with the ->init()
handler. This is correctly handeled.
2) We replace the given action, or we try to add one without replacing
and find out that the action at a specific index already exists
(thus, we go out with error in that case).
In case of 2), we have to undo the reference count increase from
tcf_hash_check() in the tcf_hash_check() function. Currently, we fail to
do so because of the 'tcfc_bindcnt > 0' check which bails out early with
an -EPERM error.
Now, while commit 55334a5db5cd prevents 'tc actions del action ...' on an
already classifier-bound action to drop the reference count (which could
then become negative, wrap around etc), this restriction only accounts for
invocations outside a specific action's ->init() handler.
One possible solution would be to add a flag thus we possibly trigger
the -EPERM ony in situations where it is indeed relevant.
After the patch, above test cases have correct reference count again.
Fixes: 55334a5db5cd ("net_sched: act: refuse to remove bound action outside")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Cong Wang <cwang@twopensource.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch coverts struct description to the kernel doc format. There is no
functional change.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently, tcp_recvmsg enters a busy loop in sk_wait_data if called
with flags = MSG_WAITALL | MSG_PEEK.
sk_wait_data waits for sk_receive_queue not empty, but in this case,
the receive queue is not empty, but does not contain any skb that we
can use.
Add a "last skb seen on receive queue" argument to sk_wait_data, so
that it sleeps until the receive queue has new skbs.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=99461
Link: https://sourceware.org/bugzilla/show_bug.cgi?id=18493
Link: https://bugzilla.redhat.com/show_bug.cgi?id=1205258
Reported-by: Enrico Scholz <rh-bugzilla@ensc.de>
Reported-by: Dan Searle <dan@censornet.com>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We can simply remove the INET_FRAG_EVICTED flag to avoid all the flags
race conditions with the evictor and use a participation test for the
evictor list, when we're at that point (after inet_frag_kill) in the
timer there're 2 possible cases:
1. The evictor added the entry to its evictor list while the timer was
waiting for the chainlock
or
2. The timer unchained the entry and the evictor won't see it
In both cases we should be able to see list_evictor correctly due
to the sync on the chainlock.
Joint work with Florian Westphal.
Tested-by: Frank Schreuder <fschreuder@transip.nl>
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Followup patch will call it after inet_frag_queue was freed, so q->net
doesn't work anymore (but netf = q->net; free(q); mem_limit(netf) would).
Tested-by: Frank Schreuder <fschreuder@transip.nl>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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commit 65ba1f1ec0eff ("inet: frags: fix a race between inet_evict_bucket
and inet_frag_kill") describes the bug, but the fix doesn't work reliably.
Problem is that ->flags member can be set on other cpu without chainlock
being held by that task, i.e. the RMW-Cycle can clear INET_FRAG_EVICTED
bit after we put the element on the evictor private list.
We can crash when walking the 'private' evictor list since an element can
be deleted from list underneath the evictor.
Join work with Nikolay Alexandrov.
Fixes: b13d3cbfb8e8 ("inet: frag: move eviction of queues to work queue")
Reported-by: Johan Schuijt <johan@transip.nl>
Tested-by: Frank Schreuder <fschreuder@transip.nl>
Signed-off-by: Nikolay Alexandrov <nikolay@cumulusnetworks.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pablo Neira Ayuso says:
====================
Netfilter/IPVS fixes for net
The following patchset contains ten Netfilter/IPVS fixes, they are:
1) Address refcount leak when creating an expectation from the ctnetlink
interface.
2) Fix bug splat in the IDLETIMER target related to sysfs, from Dmitry
Torokhov.
3) Resolve panic for unreachable route in IPVS with locally generated
traffic in the output path, from Alex Gartrell.
4) Fix wrong source address in rare cases for tunneled traffic in IPVS,
from Julian Anastasov.
5) Fix crash if scheduler is changed via ipvsadm -E, again from Julian.
6) Make sure skb->sk is unset for forwarded traffic through IPVS, again from
Alex Gartrell.
7) Fix crash with IPVS sync protocol v0 and FTP, from Julian.
8) Reset sender cpu for forwarded traffic in IPVS, also from Julian.
9) Allocate template conntracks through kmalloc() to resolve netns dependency
problems with the conntrack kmem_cache.
10) Fix zones with expectations that clash using the same tuple, from Joe
Stringer.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Quoting Daniel Borkmann:
"When adding connection tracking template rules to a netns, f.e. to
configure netfilter zones, the kernel will endlessly busy-loop as soon
as we try to delete the given netns in case there's at least one
template present, which is problematic i.e. if there is such bravery that
the priviledged user inside the netns is assumed untrusted.
Minimal example:
ip netns add foo
ip netns exec foo iptables -t raw -A PREROUTING -d 1.2.3.4 -j CT --zone 1
ip netns del foo
What happens is that when nf_ct_iterate_cleanup() is being called from
nf_conntrack_cleanup_net_list() for a provided netns, we always end up
with a net->ct.count > 0 and thus jump back to i_see_dead_people. We
don't get a soft-lockup as we still have a schedule() point, but the
serving CPU spins on 100% from that point onwards.
Since templates are normally allocated with nf_conntrack_alloc(), we
also bump net->ct.count. The issue why they are not yet nf_ct_put() is
because the per netns .exit() handler from x_tables (which would eventually
invoke xt_CT's xt_ct_tg_destroy() that drops reference on info->ct) is
called in the dependency chain at a *later* point in time than the per
netns .exit() handler for the connection tracker.
This is clearly a chicken'n'egg problem: after the connection tracker
.exit() handler, we've teared down all the connection tracking
infrastructure already, so rightfully, xt_ct_tg_destroy() cannot be
invoked at a later point in time during the netns cleanup, as that would
lead to a use-after-free. At the same time, we cannot make x_tables depend
on the connection tracker module, so that the xt_ct_tg_destroy() would
be invoked earlier in the cleanup chain."
Daniel confirms this has to do with the order in which modules are loaded or
having compiled nf_conntrack as modules while x_tables built-in. So we have no
guarantees regarding the order in which netns callbacks are executed.
Fix this by allocating the templates through kmalloc() from the respective
SYNPROXY and CT targets, so they don't depend on the conntrack kmem cache.
Then, release then via nf_ct_tmpl_free() from destroy_conntrack(). This branch
is marked as unlikely since conntrack templates are rarely allocated and only
from the configuration plane path.
Note that templates are not kept in any list to avoid further dependencies with
nf_conntrack anymore, thus, the tmpl larval list is removed.
Reported-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Tested-by: Daniel Borkmann <daniel@iogearbox.net>
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fib_select_default considers alternative routes only when
res->fi is for the first alias in res->fa_head. In the
common case this can happen only when the initial lookup
matches the first alias with highest TOS value. This
prevents the alternative routes to require specific TOS.
This patch solves the problem as follows:
- routes that require specific TOS should be returned by
fib_select_default only when TOS matches, as already done
in fib_table_lookup. This rule implies that depending on the
TOS we can have many different lists of alternative gateways
and we have to keep the last used gateway (fa_default) in first
alias for the TOS instead of using single tb_default value.
- as the aliases are ordered by many keys (TOS desc,
fib_priority asc), we restrict the possible results to
routes with matching TOS and lowest metric (fib_priority)
and routes that match any TOS, again with lowest metric.
For example, packet with TOS 8 can not use gw3 (not lowest
metric), gw4 (different TOS) and gw6 (not lowest metric),
all other gateways can be used:
tos 8 via gw1 metric 2 <--- res->fa_head and res->fi
tos 8 via gw2 metric 2
tos 8 via gw3 metric 3
tos 4 via gw4
tos 0 via gw5
tos 0 via gw6 metric 1
Reported-by: Hagen Paul Pfeifer <hagen@jauu.net>
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"This became a relative big update as it includes the collected ASoC
fixes. There are a few fixes in ASoC core side, mostly for DAPM and
the new topology API. The rest are various ASoC driver-specific
fixes, as well as the usual HD-audio and USB-audio quirks"
* tag 'sound-4.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (29 commits)
ALSA: hda - Fix MacBook Pro 5,2 quirk
ALSA: hda - Fix race between PM ops and HDA init/probe
ALSA: usb-audio: add dB range mapping for some devices
ALSA: hda - Apply a fixup to Dell Vostro 5480
ALSA: hda - Add pin quirk for the headset mic jack detection on Dell laptop
ALSA: hda - Apply fixup for another Toshiba Satellite S50D
ALSA: fireworks: add support for AudioFire2 quirk
ALSA: hda - Fix the headset mic that will not work on Dell desktop machine
ALSA: hda - fix cs4210_spdif_automute()
ASoC: pcm1681: Fix setting de-emphasis sampling rate selection
ASoC: ssm4567: Keep TDM_BCLKS in ssm4567_set_dai_fmt
ASoC: sgtl5000: Fix up define for SGTL5000_SMALL_POP
ASoC: dapm: Don't add prefix to widget stream name
ASoC: rt5645: Check if codec is initialized in workqueue handler
ASoC: Intel: Get correct usage_count value to load firmware
ASoC: topology: Fix to add dapm mixer info
ASoC: zx: spdif: Fix devm_ioremap_resource return value check
ASoC: zx: i2s: Fix devm_ioremap_resource return value check
ASoC: mediatek: Use platform_of_node for machine drivers
ASoC: Free card DAPM context on snd_soc_instantiate_card() error path
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'asoc/fix/zx' into asoc-linus
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Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Pull drm fixes from Dave Airlie:
"This has a bunch of nouveau fixes, as Ben has been hibernating and has
lots of small fixes for lots of bugs across nouveau.
Radeon has one major fix for hdmi/dp audio regression that is larger
than Alex would like, but seems to fix up a fair few bugs, along with
some misc fixes.
And a few msm fixes, one of which is also a bit large.
But nothing in here seems insane or crazy for this stage, just more
than I'd like"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (33 commits)
drm/msm/mdp5: release SMB (shared memory blocks) in various cases
drm/msm: change to uninterruptible wait in atomic commit
drm/msm: mdp4: Fix drm_framebuffer dereference crash
drm/msm: fix msm_gem_prime_get_sg_table()
drm/amdgpu: add new parameter to seperate map and unmap
drm/amdgpu: hdp_flush is not needed for inside IB
drm/amdgpu: different emit_ib for gfx and compute
drm/amdgpu: information leak in amdgpu_info_ioctl()
drm/amdgpu: clean up init sequence for failures
drm/radeon/combios: add some validation of lvds values
drm/radeon: rework audio modeset to handle non-audio hdmi features
drm/radeon: rework audio detect (v4)
drm/amdgpu: Drop drm/ prefix for including drm.h in amdgpu_drm.h
drm/radeon: Drop drm/ prefix for including drm.h in radeon_drm.h
drm/nouveau/nouveau/ttm: fix tiled system memory with Maxwell
drm/nouveau/kms/nv50-: guard against enabling cursor on disabled heads
drm/nouveau/fbcon/g80: reduce PUSH_SPACE alloc, fire ring on accel init
drm/nouveau/fbcon/gf100-: reduce RING_SPACE allocation
drm/nouveau/fbcon/nv11-: correctly account for ring space usage
drm/nouveau/bios: add proper support for opcode 0x59
...
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This allows amdgpu_drm.h to be reused verbatim in libdrm.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
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This allows radeon_drm.h to be reused verbatim in libdrm.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI fixes from Rafael Wysocki:
"These fix three regressions, two recent ones (cpufreq core and ACPI
device power management) and one introduced during the 4.1 cycle
(intel_pstate).
Specifics:
- Fix a recently introduced issue in the cpufreq core causing it to
attempt to create duplicate symbolic links to the policy directory
in sysfs for CPUs that are offline when the cpufreq driver is being
registered (Rafael J Wysocki)
- Fix a recently introduced problem in the ACPI device power
management core code causing it to store an incorrect value in the
device object's power.state field in some cases which in turn leads
to attempts to turn power resources off while they should still be
on going forward (Mika Westerberg)
- Fix an intel_pstate driver issue introduced during the 4.1 cycle
which leads to kernel panics on boot on Knights Landing chips due
to incomplete support for them in that driver (Lukasz Anaczkowski)"
* tag 'pm+acpi-4.2-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: Avoid attempts to create duplicate symbolic links
ACPI / PM: Use target_state to set the device power state
intel_pstate: Add get_scaling cpu_defaults param to Knights Landing
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After commit 87549141d516 (cpufreq: Stop migrating sysfs files on
hotplug) there is a problem with CPUs that share cpufreq policy
objects with other CPUs and are initially offline.
Say CPU1 shares a policy with CPU0 which is online and is registered
first. As part of the registration process, cpufreq_add_dev() is
called for it. It creates the policy object and a symbolic link
to it from the CPU1's sysfs directory. If CPU1 is registered
subsequently and it is offline at that time, cpufreq_add_dev() will
attempt to create a symbolic link to the policy object for it, but
that link is present already, so a warning about that will be
triggered.
To avoid that warning, make cpufreq use an additional CPU mask
containing related CPUs that are actually present for each policy
object. That mask is initialized when the policy object is populated
after its creation (for the first online CPU using it) and it includes
CPUs from the "policy CPUs" mask returned by the cpufreq driver's
->init() callback that are physically present at that time. Symbolic
links to the policy are created only for the CPUs in that mask.
If cpufreq_add_dev() is invoked for an offline CPU, it checks the
new mask and only creates the symlink if the CPU was not in it (the
CPU is added to the mask at the same time).
In turn, cpufreq_remove_dev() drops the given CPU from the new mask,
removes its symlink to the policy object and returns, unless it is
the CPU owning the policy object. In that case, the policy object
is moved to a new CPU's sysfs directory or deleted if the CPU being
removed was the last user of the policy.
While at it, notice that cpufreq_remove_dev() can't fail, because
its return value is ignored, so make it ignore return values from
__cpufreq_remove_dev_prepare() and __cpufreq_remove_dev_finish()
and prevent these functions from aborting on errors returned by
__cpufreq_governor(). Also drop the now unused sif argument from
them.
Fixes: 87549141d516 (cpufreq: Stop migrating sysfs files on hotplug)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reported-and-tested-by: Russell King <linux@arm.linux.org.uk>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
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Pull SCSI target fixes from Nicholas Bellinger:
"This series is larger than what I'd normally be conformable with
sending for a -rc5 PULL request..
However, the bulk of the series is localized to qla2xxx target
specific fixes that address a number of real-world correctness issues,
that have been outstanding on the list for ~6 weeks now. They where
submitted + verified + acked by the HW LLD vendor, contributed by a
major production customer of the code, and are marked for v3.18.y
stable code.
That said, I don't see a good reason to wait another month to get
these fixes into mainline.
Beyond the qla2xx specific fixes, this series also includes:
- bugfix for a long standing use-after-free in iscsi-target during
TPG shutdown + demo-mode sessions.
- bugfix for a >= v4.0 regression OOPs in iscsi-target during a
iscsi_start_kthreads() failure.
- bugfix for a >= v4.0 regression hang in iscsi-target for iser
explicit session/connection logout.
- bugfix for a iser-target bug where a early CMA REJECTED status
during login triggers a NULL pointer dereference OOPs.
- bugfixes for a handful of v4.2-rc1 specific regressions related to
the larger set of recent backend configfs attribute changes.
A big thanks to QLogic + Pure Storage for the qla2xxx target bugfixes"
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (28 commits)
Documentation/target: Fix tcm_mod_builder.py build breakage
iser-target: Fix REJECT CM event use-after-free OOPs
iscsi-target: Fix iser explicit logout TX kthread leak
iscsi-target: Fix iscsit_start_kthreads failure OOPs
iscsi-target: Fix use-after-free during TPG session shutdown
qla2xxx: terminate exchange when command is aborted by LIO
qla2xxx: drop cmds/tmrs arrived while session is being deleted
qla2xxx: disable scsi_transport_fc registration in target mode
qla2xxx: added sess generations to detect RSCN update races
qla2xxx: Abort stale cmds on qla_tgt_wq when plogi arrives
qla2xxx: delay plogi/prli ack until existing sessions are deleted
qla2xxx: cleanup cmd in qla workqueue before processing TMR
qla2xxx: kill sessions/log out initiator on RSCN and port down events
qla2xxx: fix command initialization in target mode.
qla2xxx: Remove msleep in qlt_send_term_exchange
qla2xxx: adjust debug flags
qla2xxx: release request queue reservation.
qla2xxx: Add flush after updating ATIOQ consumer index.
qla2xxx: Enable target mode for ISP27XX
qla2xxx: Fix hardware lock/unlock issue causing kernel panic.
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This patch fixes a regression introduced with the following commit
in v4.0-rc1 code, where a iscsit_start_kthreads() failure triggers
a NULL pointer dereference OOPs:
commit 88dcd2dab5c23b1c9cfc396246d8f476c872f0ca
Author: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Thu Feb 26 22:19:15 2015 -0800
iscsi-target: Convert iscsi_thread_set usage to kthread.h
To address this bug, move iscsit_start_kthreads() immediately
preceeding the transmit of last login response, before signaling
a successful transition into full-feature-phase within existing
iscsi_target_do_tx_login_io() logic.
This ensures that no target-side resource allocation failures can
occur after the final login response has been successfully sent.
Also, it adds a iscsi_conn->rx_login_comp to allow the RX thread
to sleep to prevent other socket related failures until the final
iscsi_post_login_handler() call is able to complete.
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: <stable@vger.kernel.org> # v3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
"A handful of DT related fixes for 4.2-rc"
* tag 'devicetree-fixes-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: Drop owner assignment from platform and i2c driver
DEVICETREE: Misc fix for the AR7100 SPI controller binding
of: constify drv arg of of_driver_match_device stub
of: add HAS_IOMEM depends to OF_ADDRESS
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With this change the stub has the same signature as the actual function,
preventing this compiler warning when building without CONFIG_OF:
drivers/base/property.c: In function 'fwnode_driver_match_device':
>> drivers/base/property.c:608:38: warning: passing argument 2 of 'of_driver_match_device' discards 'const' qualifier from pointer target type
return of_driver_match_device(dev, drv);
^
In file included from drivers/base/property.c:18:0:
include/linux/of_device.h:61:19: note: expected 'struct device_driver *' but argument is of type 'const struct device_driver *'
static inline int of_driver_match_device(struct device *dev,
^
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Rob Herring <robh@kernel.org>
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Pull NFS client bugfixes from Trond Myklebust:
"Highlights include:
Stable patches:
- Fix a situation where the client uses the wrong (zero) stateid.
- Fix a memory leak in nfs_do_recoalesce
Bugfixes:
- Plug a memory leak when ->prepare_layoutcommit fails
- Fix an Oops in the NFSv4 open code
- Fix a backchannel deadlock
- Fix a livelock in sunrpc when sendmsg fails due to low memory
availability
- Don't revalidate the mapping if both size and change attr are up to
date
- Ensure we don't miss a file extension when doing pNFS
- Several fixes to handle NFSv4.1 sequence operation status bits
correctly
- Several pNFS layout return bugfixes"
* tag 'nfs-for-4.2-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (28 commits)
nfs: Fix an oops caused by using other thread's stack space in ASYNC mode
nfs: plug memory leak when ->prepare_layoutcommit fails
SUNRPC: Report TCP errors to the caller
sunrpc: translate -EAGAIN to -ENOBUFS when socket is writable.
NFSv4.2: handle NFS-specific llseek errors
NFS: Don't clear desc->pg_moreio in nfs_do_recoalesce()
NFS: Fix a memory leak in nfs_do_recoalesce
NFS: nfs_mark_for_revalidate should always set NFS_INO_REVAL_PAGECACHE
NFS: Remove the "NFS_CAP_CHANGE_ATTR" capability
NFS: Set NFS_INO_REVAL_PAGECACHE if the change attribute is uninitialised
NFS: Don't revalidate the mapping if both size and change attr are up to date
NFSv4/pnfs: Ensure we don't miss a file extension
NFSv4: We must set NFS_OPEN_STATE flag in nfs_resync_open_stateid_locked
SUNRPC: xprt_complete_bc_request must also decrement the free slot count
SUNRPC: Fix a backchannel deadlock
pNFS: Don't throw out valid layout segments
pNFS: pnfs_roc_drain() fix a race with open
pNFS: Fix races between return-on-close and layoutreturn.
pNFS: pnfs_roc_drain should return 'true' when sleeping
pNFS: Layoutreturn must invalidate all existing layout segments.
...
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I'm not aware of any existing bugs around this, but the expectation is
that nfs_mark_for_revalidate() should always force a revalidation of
the cached metadata.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
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