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Avoid usage of uninitialized variable.
Fixes: 3078f5f1bd8b ("IB/mlx4: Add support for RSS QP")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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This patch introduces two helper functions to copy ah attributes
from uverbs to internal ib_ah_attr structure and the other way
during modify qp and query qp respectively.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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The implementation of TIOCGPTPEER has two issues.
When /dev/ptmx (as opposed to /dev/pts/ptmx) is opened the wrong
vfsmount is passed to dentry_open. Which results in the kernel displaying
the wrong pathname for the peer.
The second is simply by caching the vfsmount and dentry of the peer it leaves
them open, in a way they were not previously Which because of the inreased
reference counts can cause unnecessary behaviour differences resulting in
regressions.
To fix these move the ioctl into tty_io.c at a generic level allowing
the ioctl to have access to the struct file on which the ioctl is
being called. This allows the path of the slave to be derived when
opening the slave through TIOCGPTPEER instead of requiring the path to
the slave be cached. Thus removing the need for caching the path.
A new function devpts_ptmx_path is factored out of devpts_acquire and
used to implement a function devpts_mntget. The new function devpts_mntget
takes a filp to perform the lookup on and fsi so that it can confirm
that the superblock that is found by devpts_ptmx_path is the proper superblock.
v2: Lots of fixes to make the code actually work
v3: Suggestions by Linus
- Removed the unnecessary initialization of filp in ptm_open_peer
- Simplified devpts_ptmx_path as gotos are no longer required
[ This is the fix for the issue that was reverted in commit
143c97cc6529, but this time without breaking 'pbuilder' due to
increased reference counts - Linus ]
Fixes: 54ebbfb16034 ("tty: add TIOCGPTPEER ioctl")
Reported-by: Christian Brauner <christian.brauner@canonical.com>
Reported-and-tested-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* acpica-fix:
ACPICA: Fix acpi_evaluate_object_typed()
* acpi-ec-fix:
ACPI: EC: Fix regression related to wrong ECDT initialization order
* acpi-properties-fix:
ACPI: device property: Fix node lookup in acpi_graph_get_child_prop_value()
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When rdma_cm is initializing a cma_device it checks if this device
supports the preferred default GID type. This check was done in a wrong way
and therefore sometimes rdma_cm is coming up with default GID type that is
not supported by the device.
Fix that by checking for supported GID type properly.
Fixes: 3c7f67d1880d ("IB/cma: Fix default RoCE type setting")
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Pick up -rc fixes.
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Commit 0a987645672e ("um: Allow building and running on older
hosts") attempted to check for PTRACE_{GET,SET}REGSET under the premise
that these ptrace(2) parameters were directly linked with the presence
of the _xstate structure.
After Richard's commit 61e8d462457f ("um: Correctly check for
PTRACE_GETRESET/SETREGSET") which properly included linux/ptrace.h
instead of asm/ptrace.h, we could get into the original build failure
that I reported:
arch/x86/um/user-offsets.c: In function 'foo':
arch/x86/um/user-offsets.c:54: error: invalid application of 'sizeof' to
incomplete type 'struct _xstate'
On this particular host, we do have PTRACE_GETREGSET and
PTRACE_SETREGSET defined in linux/ptrace.h, but not the structure
_xstate that should be pulled from the following include chain: signal.h
-> bits/sigcontext.h.
Correctly fix this by checking for FP_XSTATE_MAGIC1 which is the correct
way to see if struct _xstate is available or not on the host.
Fixes: 61e8d462457f ("um: Correctly check for PTRACE_GETRESET/SETREGSET")
Fixes: 0a987645672e ("um: Allow building and running on older hosts")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
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git.kernel.org links don't work (fatal: repository ... not found).
Update them with the current style from https://git.kernel.org
There is no HTTP option, so also switch HTTP -> HTTPS.
Signed-off-by: Andrii Bordunov <andrew.bordunov@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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The rtmutex remove a pending owner bit in in rt_mutex::owner, in
commit 8161239a8bcc ("rtmutex: Simplify PI algorithm and make highest prio task get lock")
But the document was changed accordingly. Updating it to a meaningful
state.
BTW, as 'Steven Rostedt' mentioned:
There is still technically a "Pending Owner", it's just not called
that anymore. The pending owner happens to be the top_waiter of a lock
that has no owner and has been woken up to grab the lock.
Signed-off-by: Alex Shi <alex.shi@linaro.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Sebastian Siewior <bigeasy@linutronix.de>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Juri Lelli <juri.lelli@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
To: linux-doc@vger.kernel.org
To: linux-kernel@vger.kernel.org
To: Jonathan Corbet <corbet@lwn.net>
To: Ingo Molnar <mingo@redhat.com>
To: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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The rt-mutex-design documents didn't gotten meaningful update from its
first version. Even after owner's pending bit was removed in commit 8161239a8bcc
("rtmutex: Simplify PI algorithm and make highest prio task get lock")
and priority list 'plist' changed to rbtree. And Peter Zijlstra did some
clean up and fix for deadline task changes on tip tree.
So update it to latest code and make it meaningful.
Steven Rostedt and Sebastian Siewior gave much of comments and input
in this doc. Thanks!
Signed-off-by: Alex Shi <alex.shi@linaro.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Sebastian Siewior <bigeasy@linutronix.de>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Juri Lelli <juri.lelli@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
To: linux-doc@vger.kernel.org
To: linux-kernel@vger.kernel.org
To: Jonathan Corbet <corbet@lwn.net>
To: Ingo Molnar <mingo@redhat.com>
To: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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CM layer calls ib_modify_port() regardless of the link layer.
For the Ethernet ports, qkey violation and Port capabilities
are meaningless. Therefore, always return success for ib_modify_port
calls on the Ethernet ports.
Cc: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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In case we have SQ and RQ for Raw Packet QP, the SQ's event handler
wasn't assigned.
Fixing this by assigning event handler for each WQ after creation.
[ 1877.145243] Call Trace:
[ 1877.148644] <IRQ>
[ 1877.150580] [<ffffffffa07987c5>] ? mlx5_rsc_event+0x105/0x210 [mlx5_core]
[ 1877.159581] [<ffffffffa0795bd7>] ? mlx5_cq_event+0x57/0xd0 [mlx5_core]
[ 1877.167137] [<ffffffffa079208e>] mlx5_eq_int+0x53e/0x6c0 [mlx5_core]
[ 1877.174526] [<ffffffff8101a679>] ? sched_clock+0x9/0x10
[ 1877.180753] [<ffffffff810f717e>] handle_irq_event_percpu+0x3e/0x1e0
[ 1877.188014] [<ffffffff810f735d>] handle_irq_event+0x3d/0x60
[ 1877.194567] [<ffffffff810f9fe7>] handle_edge_irq+0x77/0x130
[ 1877.201129] [<ffffffff81014c3f>] handle_irq+0xbf/0x150
[ 1877.207244] [<ffffffff815ed78a>] ? atomic_notifier_call_chain+0x1a/0x20
[ 1877.214829] [<ffffffff815f434f>] do_IRQ+0x4f/0xf0
[ 1877.220498] [<ffffffff815e94ad>] common_interrupt+0x6d/0x6d
[ 1877.227025] <EOI>
[ 1877.228967] [<ffffffff814834e2>] ? cpuidle_enter_state+0x52/0xc0
[ 1877.236990] [<ffffffff81483615>] cpuidle_idle_call+0xc5/0x200
[ 1877.243676] [<ffffffff8101bc7e>] arch_cpu_idle+0xe/0x30
[ 1877.249831] [<ffffffff810b4725>] cpu_startup_entry+0xf5/0x290
[ 1877.256513] [<ffffffff815cfee1>] start_secondary+0x265/0x27b
[ 1877.263111] Code: Bad RIP value.
[ 1877.267296] RIP [< (null)>] (null)
[ 1877.273264] RSP <ffff88046fd63df8>
[ 1877.277531] CR2: 0000000000000000
Fixes: 19098df2da78 ("IB/mlx5: Refactor mlx5_ib_qp to accommodate other QP types")
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Commit 44c58487d51a ("IB/core: Define 'ib' and 'roce' rdma_ah_attr types")
introduced the concept of type in ah_attr:
* During ib_register_device, each port is checked for its type which
is stored in ib_device's port_immutable array.
* During uverbs' modify_qp, the type is inferred using the port number
in ib_uverbs_qp_dest struct (address vector) by accessing the
relevant port_immutable array and the type is passed on to
providers.
IB spec (version 1.3) enforces a valid port value only in Reset to
Init. During Init to RTR, the address vector must be valid but port
number is not mentioned as a field in the address vector, so its
value is not validated, which leads to accesses to a non-allocated
memory when inferring the port type.
Save the real port number in ib_qp during modify to Init (when the
comp_mask indicates that the port number is valid) and use this value
to infer the port type.
Avoid copying the address vector fields if the matching bit is not set
in the attr_mask. Address vector can't be modified before the port, so
no valid flow is affected.
Fixes: 44c58487d51a ('IB/core: Define 'ib' and 'roce' rdma_ah_attr types')
Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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according to what Documentation/doc-guide/sphinx.rst says::
The ReST markups currently used by the Documentation/ files
are meant to be built with ``Sphinx`` version 1.3 or upper.
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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With Sphinx 1.6 nested numbering is reported as warning::
./input/joydev/index.rst:13: WARNING: input/joydev/joystick-api is already assigned section numbers (nested numbered toctree?)
./media/uapi/cec/cec-funcs.rst:8: WARNING: media/uapi/cec/cec-func-open is already assigned section numbers (nested numbered toctree?)
./media/uapi/cec/cec-funcs.rst:8: WARNING: media/uapi/cec/cec-func-close is already assigned section numbers (nested numbered toctree?)
./media/uapi/cec/cec-funcs.rst:8: WARNING: media/uapi/cec/cec-func-ioctl is already assigned section numbers (nested numbered toctree?)
./media/uapi/cec/cec-funcs.rst:8: WARNING: media/uapi/cec/cec-func-poll is already assigned section numbers (nested numbered toctree?)
./media/uapi/cec/cec-funcs.rst:8: WARNING: media/uapi/cec/cec-ioc-adap-g-caps is already assigned section numbers (nested numbered toctree?)
./media/uapi/cec/cec-funcs.rst:8: WARNING: media/uapi/cec/cec-ioc-adap-g-log-addrs is already assigned section numbers (nested numbered toctree?)
./media/uapi/cec/cec-funcs.rst:8: WARNING: media/uapi/cec/cec-ioc-adap-g-phys-addr is already assigned section numbers (nested numbered toctree?)
./media/uapi/cec/cec-funcs.rst:8: WARNING: media/uapi/cec/cec-ioc-dqevent is already assigned section numbers (nested numbered toctree?)
./media/uapi/cec/cec-funcs.rst:8: WARNING: media/uapi/cec/cec-ioc-g-mode is already assigned section numbers (nested numbered toctree?)
./media/uapi/cec/cec-funcs.rst:8: WARNING: media/uapi/cec/cec-ioc-receive is already assigned section numbers (nested numbered toctree?)
TOC numbering is already set in::
./input/devices/index.rst:9:
./media/uapi/cec/cec-api.rst:19:
I guess the nested numbering in:
./input/joydev/index.rst
./media/uapi/cec/cec-funcs.rst
is just a C&P typo, so lets remove it.
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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This is a minor patch that fixes the following typo in the NVMEM documentation:
When a consumers no longer needs the NVMEM
to,
When a consumer no longer needs the NVMEM
Signed-off-by: Narendran Sankaran <naren.kernel@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Currently, on Sphinx up to version 1.4, pdf output uses a vertical
margin of 1 inch. For upper versions, it uses a margin of 0.5 inches.
That causes both page headers and footers to be very close to the margin
of the sheet. Not all printers support writing like that.
Also, there's no reason why the layout for newer versions would be
different than for previous ones.
So, standardize it, by always setting to 1 inch.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Right now, if the building system doesn't find Sphinx, it
bails out, without providing any instructions about what
should be done.
Instead, run a script, providing some guidance about the
steps needed for Sphinx build to work.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Several paths in the security/keys documentation were incorrect.
Signed-off-by: Josh Holland <anowlcalledjosh@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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This change is needed to not fool drop monitor.
(perf record ... -e skb:kfree_skb )
Packets were properly sent and are consumed after TX completion.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for your net tree,
they are:
1) Fix use after free of struct proc_dir_entry in ipt_CLUSTERIP, patch
from Sabrina Dubroca.
2) Fix spurious EINVAL errors from iptables over nft compatibility layer.
3) Reload pointer to ip header only if there is non-terminal verdict,
ie. XT_CONTINUE, otherwise invalid memory access may happen, patch
from Taehee Yoo.
4) Fix interaction between SYNPROXY and NAT, SYNPROXY adds sequence
adjustment already, however from nf_nat_setup() assumes there's not.
Patch from Xin Long.
5) Fix burst arithmetics in nft_limit as Joe Stringer mentioned during
NFWS in Faro. Patch from Andy Zhou.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Function sii8620_mt_read_devcap_reg_recv() used to read array index
from a wrong msg register, which caused writing out of array
bounds. It led to writing on other fields of struct sii8620.
Signed-off-by: Maciej Purski <m.purski@samsung.com>
Fixes: e9c6da270 ("drm/bridge/sii8620: add reading device capability
registers")
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1503311571-25819-1-git-send-email-m.purski@samsung.com
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Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Reviewed-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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A MegaRAID PCI card in my rp5470 acts as PCI-PCI bridge.
Resource allocation for PCI devices behind such a bridge is quite incomplete,
so that syslog reports those warnings:
LBA 0:10: PCI host bridge to bus 0000:50
pci_bus 0000:50: root bus resource [io 0x80000-0x8ffff] (bus address [0x0000-0xffff])
pci_bus 0000:50: root bus resource [mem 0xffffffff94000000-0xffffffff95ffffff] (bus address [0x94000000-0x95ffffff])
pci_bus 0000:50: root bus resource [bus 50-57]
pci 0000:50:00.0: [8086:0964] type 01 class 0x060400
pci 0000:50:00.1: [8086:1960] type 00 class 0x0e0001
pci 0000:50:00.1: reg 0x10: [mem 0x00000000-0x003fffff pref]
pci 0000:50:00.1: reg 0x30: [mem 0x00000000-0x00007fff pref]
pci 0000:50:00.0: Changing bridge control from 0x00000000 to 0x00000023
pci_bus 0000:51: busn_res: can not insert [bus 51-ff] under [bus 50-57] (conflicts with (null) [bus 50-57])
pci 0000:50:00.0: PCI bridge to [bus 51-ff]
pci 0000:50:00.0: bridge window [io 0x80000-0x80fff]
pci 0000:50:00.0: bridge window [mem 0x00000000-0x000fffff]
pci 0000:50:00.0: bridge window [mem 0x00000000-0x000fffff pref]
pci 0000:50:00.0: can't claim BAR 14 [mem 0x00000000-0x000fffff]: no compatible bridge window
pci 0000:50:00.0: can't claim BAR 15 [mem 0x00000000-0x000fffff pref]: no compatible bridge window
pci 0000:50:00.0: can't claim BAR 16 [??? 0x00000000 flags 0x0]: no compatible bridge window
pci_bus 0000:51: busn_res: [bus 51-ff] end is updated to 51
pci 0000:50:00.0: BAR 16: [??? 0x00000000 flags 0x20000000] has bogus alignment
pci 0000:50:00.1: BAR 0: assigned [mem 0xffffffff94000000-0xffffffff943fffff pref]
pci 0000:50:00.0: BAR 14: assigned [mem 0xffffffff94400000-0xffffffff944fffff]
pci 0000:50:00.0: BAR 15: assigned [mem 0xffffffff94500000-0xffffffff945fffff pref]
pci 0000:50:00.1: BAR 6: assigned [mem 0xffffffff94600000-0xffffffff94607fff pref]
pci 0000:50:00.0: PCI bridge to [bus 51]
pci 0000:50:00.0: bridge window [io 0x80000-0x80fff]
pci 0000:50:00.0: bridge window [mem 0xffffffff94400000-0xffffffff944fffff]
pci 0000:50:00.0: bridge window [mem 0xffffffff94500000-0xffffffff945fffff pref]
The patch below tries to improve the resource allocation.
Output is now:
LBA 0:10: PCI host bridge to bus 0000:50
pci_bus 0000:50: root bus resource [io 0x80000-0x8ffff] (bus address [0x0000-0xffff])
pci_bus 0000:50: root bus resource [mem 0xffffffff94000000-0xffffffff95ffffff] (bus address [0x94000000-0x95ffffff])
pci_bus 0000:50: root bus resource [bus 50-57]
pci 0000:50:00.0: Changing bridge control from 0x00000000 to 0x00000023
pci 0000:50:00.0: PCI bridge to [bus 51-ff]
pci 0000:50:00.1: BAR 0: assigned [mem 0xffffffff94000000-0xffffffff943fffff pref]
pci 0000:50:00.1: BAR 6: assigned [mem 0xffffffff94400000-0xffffffff94407fff pref]
pci 0000:50:00.0: PCI bridge to [bus 51]
pci 0000:50:00.0: bridge window [io 0x80000-0x80fff]
Signed-off-by: Helge Deller <deller@gmx.de>
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The memory_pressure control file was incorrectly set up without
a private value (0, by default). As a result, this control
file was treated like memory_migrate on read. By adding back the
FILE_MEMORY_PRESSURE private value, the correct memory pressure value
will be returned.
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Fixes: 7dbdb199d3bf ("cgroup: replace cftype->mode with CFTYPE_WORLD_WRITABLE")
Cc: stable@vger.kernel.org # v4.4+
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Not all devices with ACPI and this combination of sound devices will
have the required information provided via ACPI. Reintroduce the I2C
device ID to restore sound functionality on on the Chromebook 'Samus'
model.
[ More background note:
the commit a36afb0ab648 ("ASoC: rt5677: Introduce proper table...")
moved the i2c ID probed via ACPI ("RT5677CE:00") to a proper
acpi_device_id table. Although the action itself is correct per se,
the overseen issue is the reference id->driver_data at
rt5677_i2c_probe() for retrieving the corresponding chip model for
the given id. Since id=NULL is passed for ACPI matching case, we get
an Oops now.
We already have queued more fixes for 4.14 and they already address
the issue, but they are bigger changes that aren't preferable for the
late 4.13-rc stage. So, this patch just papers over the bug as a
once-off quick fix for a particular ACPI matching. -- tiwai ]
Fixes: a36afb0ab648 ("ASoC: rt5677: Introduce proper table for ACPI enumeration")
Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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This fixes several instances of blk_status_t and bare errno ints being
mixed up, some of which are real bugs.
In the normal case, 0 matches BLK_STS_OK, so we don't observe any
effects of the missing conversion, but in case of errors or passes
through the repair/retry paths, the errors get mixed up.
The changes were identified using 'sparse', we don't have reports of the
buggy behaviour.
Fixes: 4e4cbee93d56 ("block: switch bios to blk_status_t")
Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Current implementation treats the burst configuration the same as
rate configuration. This can cause the per packet cost to be lower
than configured. In effect, this bug causes the token bucket to be
refilled at a higher rate than what user has specified.
This patch changes the implementation so that the token bucket size
is controlled by "rate + burst", while maintain the token bucket
refill rate the same as user specified.
Fixes: 96518518cc41 ("netfilter: add nftables")
Signed-off-by: Andy Zhou <azhou@ovn.org>
Acked-by: Joe Stringer <joe@ovn.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Since we split the scsi_request out of struct request bsg fails to
provide a reply-buffer for the drivers. This was done via the pointer
for sense-data, that is not preallocated anymore.
Failing to allocate/assign it results in illegal dereferences because
LLDs use this pointer unquestioned.
An example panic on s390x, using the zFCP driver, looks like this (I had
debugging on, otherwise NULL-pointer dereferences wouldn't even panic on
s390x):
Unable to handle kernel pointer dereference in virtual kernel address space
Failing address: 6b6b6b6b6b6b6000 TEID: 6b6b6b6b6b6b6403
Fault in home space mode while using kernel ASCE.
AS:0000000001590007 R3:0000000000000024
Oops: 0038 ilc:2 [#1] PREEMPT SMP DEBUG_PAGEALLOC
Modules linked in: <Long List>
CPU: 2 PID: 0 Comm: swapper/2 Not tainted 4.12.0-bsg-regression+ #3
Hardware name: IBM 2964 N96 702 (z/VM 6.4.0)
task: 0000000065cb0100 task.stack: 0000000065cb4000
Krnl PSW : 0704e00180000000 000003ff801e4156 (zfcp_fc_ct_els_job_handler+0x16/0x58 [zfcp])
R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:2 PM:0 RI:0 EA:3
Krnl GPRS: 0000000000000001 000000005fa9d0d0 000000005fa9d078 0000000000e16866
000003ff00000290 6b6b6b6b6b6b6b6b 0000000059f78f00 000000000000000f
00000000593a0958 00000000593a0958 0000000060d88800 000000005ddd4c38
0000000058b50100 07000000659cba08 000003ff801e8556 00000000659cb9a8
Krnl Code: 000003ff801e4146: e31020500004 lg %r1,80(%r2)
000003ff801e414c: 58402040 l %r4,64(%r2)
#000003ff801e4150: e35020200004 lg %r5,32(%r2)
>000003ff801e4156: 50405004 st %r4,4(%r5)
000003ff801e415a: e54c50080000 mvhi 8(%r5),0
000003ff801e4160: e33010280012 lt %r3,40(%r1)
000003ff801e4166: a718fffb lhi %r1,-5
000003ff801e416a: 1803 lr %r0,%r3
Call Trace:
([<000003ff801e8556>] zfcp_fsf_req_complete+0x726/0x768 [zfcp])
[<000003ff801ea82a>] zfcp_fsf_reqid_check+0x102/0x180 [zfcp]
[<000003ff801eb980>] zfcp_qdio_int_resp+0x230/0x278 [zfcp]
[<00000000009b91b6>] qdio_kick_handler+0x2ae/0x2c8
[<00000000009b9e3e>] __tiqdio_inbound_processing+0x406/0xc10
[<00000000001684c2>] tasklet_action+0x15a/0x1d8
[<0000000000bd28ec>] __do_softirq+0x3ec/0x848
[<00000000001675a4>] irq_exit+0x74/0xf8
[<000000000010dd6a>] do_IRQ+0xba/0xf0
[<0000000000bd19e8>] io_int_handler+0x104/0x2d4
[<00000000001033b6>] enabled_wait+0xb6/0x188
([<000000000010339e>] enabled_wait+0x9e/0x188)
[<000000000010396a>] arch_cpu_idle+0x32/0x50
[<0000000000bd0112>] default_idle_call+0x52/0x68
[<00000000001cd0fa>] do_idle+0x102/0x188
[<00000000001cd41e>] cpu_startup_entry+0x3e/0x48
[<0000000000118c64>] smp_start_secondary+0x11c/0x130
[<0000000000bd2016>] restart_int_handler+0x62/0x78
[<0000000000000000>] (null)
INFO: lockdep is turned off.
Last Breaking-Event-Address:
[<000003ff801e41d6>] zfcp_fc_ct_job_handler+0x3e/0x48 [zfcp]
Kernel panic - not syncing: Fatal exception in interrupt
This patch moves bsg-lib to allocate and setup struct bsg_job ahead of
time, including the allocation of a buffer for the reply-data.
This means, struct bsg_job is not allocated separately anymore, but as part
of struct request allocation - similar to struct scsi_cmd. Reflect this in
the function names that used to handle creation/destruction of struct
bsg_job.
Reported-by: Steffen Maier <maier@linux.vnet.ibm.com>
Suggested-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Benjamin Block <bblock@linux.vnet.ibm.com>
Fixes: 82ed4db499b8 ("block: split scsi_request out of struct request")
Cc: <stable@vger.kernel.org> #4.11+
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Commit 4440a2ab3b9f ("netfilter: synproxy: Check oom when adding synproxy
and seqadj ct extensions") wanted to drop the packet when it fails to add
seqadj ext due to no memory by checking if nfct_seqadj_ext_add returns
NULL.
But that nfct_seqadj_ext_add returns NULL can also happen when seqadj ext
already exists in a nf_conn. It will cause that userspace protocol doesn't
work when both dnat and snat are configured.
Li Shuang found this issue in the case:
Topo:
ftp client router ftp server
10.167.131.2 <-> 10.167.131.254 10.167.141.254 <-> 10.167.141.1
Rules:
# iptables -t nat -A PREROUTING -i eth1 -p tcp -m tcp --dport 21 -j \
DNAT --to-destination 10.167.141.1
# iptables -t nat -A POSTROUTING -o eth2 -p tcp -m tcp --dport 21 -j \
SNAT --to-source 10.167.141.254
In router, when both dnat and snat are added, nf_nat_setup_info will be
called twice. The packet can be dropped at the 2nd time for DNAT due to
seqadj ext is already added at the 1st time for SNAT.
This patch is to fix it by checking for seqadj ext existence before adding
it, so that the packet will not be dropped if seqadj ext already exists.
Note that as Florian mentioned, as a long term, we should review ext_add()
behaviour, it's better to return a pointer to the existing ext instead.
Fixes: 4440a2ab3b9f ("netfilter: synproxy: Check oom when adding synproxy and seqadj ct extensions")
Reported-by: Li Shuang <shuali@redhat.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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Performing the following task with kmemleak enabled:
# cd /sys/kernel/tracing/events/irq/irq_handler_entry/
# echo 'enable_event:kmem:kmalloc:3 if irq >' > trigger
# echo 'enable_event:kmem:kmalloc:3 if irq > 31' > trigger
# echo scan > /sys/kernel/debug/kmemleak
# cat /sys/kernel/debug/kmemleak
unreferenced object 0xffff8800b9290308 (size 32):
comm "bash", pid 1114, jiffies 4294848451 (age 141.139s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff81cef5aa>] kmemleak_alloc+0x4a/0xa0
[<ffffffff81357938>] kmem_cache_alloc_trace+0x158/0x290
[<ffffffff81261c09>] create_filter_start.constprop.28+0x99/0x940
[<ffffffff812639c9>] create_filter+0xa9/0x160
[<ffffffff81263bdc>] create_event_filter+0xc/0x10
[<ffffffff812655e5>] set_trigger_filter+0xe5/0x210
[<ffffffff812660c4>] event_enable_trigger_func+0x324/0x490
[<ffffffff812652e2>] event_trigger_write+0x1a2/0x260
[<ffffffff8138cf87>] __vfs_write+0xd7/0x380
[<ffffffff8138f421>] vfs_write+0x101/0x260
[<ffffffff8139187b>] SyS_write+0xab/0x130
[<ffffffff81cfd501>] entry_SYSCALL_64_fastpath+0x1f/0xbe
[<ffffffffffffffff>] 0xffffffffffffffff
The function create_filter() is passed a 'filterp' pointer that gets
allocated, and if "set_str" is true, it is up to the caller to free it, even
on error. The problem is that the pointer is not freed by create_filter()
when set_str is false. This is a bug, and it is not up to the caller to free
the filter on error if it doesn't care about the string.
Link: http://lkml.kernel.org/r/1502705898-27571-2-git-send-email-chuhu@redhat.com
Cc: stable@vger.kernel.org
Fixes: 38b78eb85 ("tracing: Factorize filter creation")
Reported-by: Chunyu Hu <chuhu@redhat.com>
Tested-by: Chunyu Hu <chuhu@redhat.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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kmemleak reported the below leak when I was doing clear of the hist
trigger. With this patch, the kmeamleak is gone.
unreferenced object 0xffff94322b63d760 (size 32):
comm "bash", pid 1522, jiffies 4403687962 (age 2442.311s)
hex dump (first 32 bytes):
00 01 00 00 04 00 00 00 08 00 00 00 ff 00 00 00 ................
10 00 00 00 00 00 00 00 80 a8 7a f2 31 94 ff ff ..........z.1...
backtrace:
[<ffffffff9e96c27a>] kmemleak_alloc+0x4a/0xa0
[<ffffffff9e424cba>] kmem_cache_alloc_trace+0xca/0x1d0
[<ffffffff9e377736>] tracing_map_array_alloc+0x26/0x140
[<ffffffff9e261be0>] kretprobe_trampoline+0x0/0x50
[<ffffffff9e38b935>] create_hist_data+0x535/0x750
[<ffffffff9e38bd47>] event_hist_trigger_func+0x1f7/0x420
[<ffffffff9e38893d>] event_trigger_write+0xfd/0x1a0
[<ffffffff9e44dfc7>] __vfs_write+0x37/0x170
[<ffffffff9e44f552>] vfs_write+0xb2/0x1b0
[<ffffffff9e450b85>] SyS_write+0x55/0xc0
[<ffffffff9e203857>] do_syscall_64+0x67/0x150
[<ffffffff9e977ce7>] return_from_SYSCALL_64+0x0/0x6a
[<ffffffffffffffff>] 0xffffffffffffffff
unreferenced object 0xffff9431f27aa880 (size 128):
comm "bash", pid 1522, jiffies 4403687962 (age 2442.311s)
hex dump (first 32 bytes):
00 00 8c 2a 32 94 ff ff 00 f0 8b 2a 32 94 ff ff ...*2......*2...
00 e0 8b 2a 32 94 ff ff 00 d0 8b 2a 32 94 ff ff ...*2......*2...
backtrace:
[<ffffffff9e96c27a>] kmemleak_alloc+0x4a/0xa0
[<ffffffff9e425348>] __kmalloc+0xe8/0x220
[<ffffffff9e3777c1>] tracing_map_array_alloc+0xb1/0x140
[<ffffffff9e261be0>] kretprobe_trampoline+0x0/0x50
[<ffffffff9e38b935>] create_hist_data+0x535/0x750
[<ffffffff9e38bd47>] event_hist_trigger_func+0x1f7/0x420
[<ffffffff9e38893d>] event_trigger_write+0xfd/0x1a0
[<ffffffff9e44dfc7>] __vfs_write+0x37/0x170
[<ffffffff9e44f552>] vfs_write+0xb2/0x1b0
[<ffffffff9e450b85>] SyS_write+0x55/0xc0
[<ffffffff9e203857>] do_syscall_64+0x67/0x150
[<ffffffff9e977ce7>] return_from_SYSCALL_64+0x0/0x6a
[<ffffffffffffffff>] 0xffffffffffffffff
Link: http://lkml.kernel.org/r/1502705898-27571-1-git-send-email-chuhu@redhat.com
Cc: stable@vger.kernel.org
Fixes: 08d43a5fa063 ("tracing: Add lock-free tracing_map")
Signed-off-by: Chunyu Hu <chuhu@redhat.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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There's a small race when function graph shutsdown and the calling of the
registered function graph entry callback. The callback must not reference
the task's ret_stack without first checking that it is not NULL. Note, when
a ret_stack is allocated for a task, it stays allocated until the task exits.
The problem here, is that function_graph is shutdown, and a new task was
created, which doesn't have its ret_stack allocated. But since some of the
functions are still being traced, the callbacks can still be called.
The normal function_graph code handles this, but starting with commit
8861dd303c ("ftrace: Access ret_stack->subtime only in the function
profiler") the profiler code references the ret_stack on function entry, but
doesn't check if it is NULL first.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=196611
Cc: stable@vger.kernel.org
Fixes: 8861dd303c ("ftrace: Access ret_stack->subtime only in the function profiler")
Reported-by: lilydjwg@gmail.com
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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Work queues cannot be allocated when a mutex is held because the mutex
may be in use and that would make it sleep. Doing so generates the
following splat with 4.13+:
[ 19.513298] ======================================================
[ 19.513429] WARNING: possible circular locking dependency detected
[ 19.513557] 4.13.0-rc5+ #6 Not tainted
[ 19.513638] ------------------------------------------------------
[ 19.513767] cpuhp/0/12 is trying to acquire lock:
[ 19.513867] (&tz->lock){+.+.+.}, at: [<ffffffff924afebb>] thermal_zone_get_temp+0x5b/0xb0
[ 19.514047]
[ 19.514047] but task is already holding lock:
[ 19.514166] (cpuhp_state){+.+.+.}, at: [<ffffffff91cc4baa>] cpuhp_thread_fun+0x3a/0x210
[ 19.514338]
[ 19.514338] which lock already depends on the new lock.
This lock dependency already existed with previous kernel versions,
but it was not detected until commit 49dfe2a67797 ("cpuhotplug: Link
lock stacks for hotplug callbacks") was introduced.
Reported-by: David Weinehall <david.weinehall@intel.com>
Reported-by: Jiri Kosina <jikos@kernel.org>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.
Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: linux-c6x-dev@linux-c6x.org
Signed-off-by: Mark Salter <msalter@redhat.com>
|
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Remove old, dead Kconfig options (in order appearing in this commit):
- EXPERIMENTAL is gone since v3.9;
- MISC_DEVICES: commit 7c5763b8453a ("drivers: misc: Remove
MISC_DEVICES config option");
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Mark Salter <msalter@redhat.com>
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The function that was added doesn't actually build:
arch/arm/mach-omap2/display.c: In function 'omapdss_init_fbdev':
arch/arm/mach-omap2/display.c:184:2: error: 'r' undeclared (first use in this function)
This adds a declaration for 'r' to fix it.
Fixes: 5ce783025c82 ("ARM: OMAP2+: Don't register omapdss device for omapdrm")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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While removing dst_entry garbage collection, commit 52df157f17e5
("xfrm: take refcnt of dst when creating struct xfrm_dst bundle")
changed xfrm_resolve_and_create_bundle so it returns an xdst with
a refcount of 1 instead of 0.
However, it did not delete the dst_hold performed by xfrm_lookup
when a per-socket policy is in use. This means that when a
socket policy is in use, dst entries returned by xfrm_lookup have
a refcount of 2, and are not freed when no longer in use.
Cc: Wei Wang <weiwan@google.com>
Fixes: 52df157f17 ("xfrm: take refcnt of dst when creating struct xfrm_dst bundle")
Tested: https://android-review.googlesource.com/417481
Tested: https://android-review.googlesource.com/418659
Tested: https://android-review.googlesource.com/424463
Tested: https://android-review.googlesource.com/452776 passes on net-next
Signed-off-by: Lorenzo Colitti <lorenzo@google.com>
Acked-by: Wei Wang <weiwan@google.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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This adds missing memory barriers to order updates/tests of
the virtual CPPR and MFRR, thus fixing a lost IPI problem.
While at it also document all barriers in this file.
This fixes a bug causing guest IPIs to occasionally get lost. The
symptom then is hangs or stalls in the guest.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Tested-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
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This adds a workaround for a bug in POWER9 DD1 chips where changing
the CPPR (Current Processor Priority Register) can cause bits in the
IPB (Interrupt Pending Buffer) to get lost. Thankfully it only
happens when manually manipulating CPPR which is quite rare. When it
does happen it can cause interrupts to be delayed or lost.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
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When msgsnd is used for IPIs to other cores, msgsync must be executed by
the target to order stores performed on the source before its msgsnd
(provided the source executes the appropriate sync).
Fixes: 1704a81ccebc ("KVM: PPC: Book3S HV: Use msgsnd for IPIs to other cores on POWER9")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
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All of these Tegra SoC generations have a ChipIdea UDC IP block that can
be used for device mode communication with a host. Implement rudimentary
support that doesn't allow switching between host and device modes.
Tested-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Thierry Reding <treding@nvidia.com>
[digetx@gmail.com: rebased patches and added DMA alignment quirk for Tegra20]
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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NVIDIA Tegra20 UDC can't cope with unaligned DMA and require a USB gadget
quirk that avoids SKB buffer alignment to be set in order to make Ethernet
Gadget working. Later Tegra generations do not require that quirk. Let's
add a new platform data flag that allows to enable USB gadget quirk for
platforms that require it.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
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When a timer base is idle, it is forwarded when a new timer is added
to ensure that granularity does not become excessive. When not idle,
the timer tick is expected to increment the base.
However there are several problems:
- If an existing timer is modified, the base is forwarded only after
the index is calculated.
- The base is not forwarded by add_timer_on.
- There is a window after a timer is restarted from a nohz idle, after
it is marked not-idle and before the timer tick on this CPU, where a
timer may be added but the ancient base does not get forwarded.
These result in excessive granularity (a 1 jiffy timeout can blow out
to 100s of jiffies), which cause the rcu lockup detector to trigger,
among other things.
Fix this by keeping track of whether the timer base has been idle
since it was last run or forwarded, and if so then forward it before
adding a new timer.
There is still a case where mod_timer optimises the case of a pending
timer mod with the same expiry time, where the timer can see excessive
granularity relative to the new, shorter interval. A comment is added,
but it's not changed because it is an important fastpath for
networking.
This has been tested and found to fix the RCU softlockup messages.
Testing was also done with tracing to measure requested versus
achieved wakeup latencies for all non-deferrable timers in an idle
system (with no lockup watchdogs running). Wakeup latency relative to
absolute latency is calculated (note this suffers from round-up skew
at low absolute times) and analysed:
max avg std
upstream 506.0 1.20 4.68
patched 2.0 1.08 0.15
The bug was noticed due to the lockup detector Kconfig changes
dropping it out of people's .configs and resulting in larger base
clk skew When the lockup detectors are enabled, no CPU can go idle for
longer than 4 seconds, which limits the granularity errors.
Sub-optimal timer behaviour is observable on a smaller scale in that
case:
max avg std
upstream 9.0 1.05 0.19
patched 2.0 1.04 0.11
Fixes: Fixes: a683f390b93f ("timers: Forward the wheel clock whenever possible")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Tested-by: David Miller <davem@davemloft.net>
Cc: dzickus@redhat.com
Cc: sfr@canb.auug.org.au
Cc: mpe@ellerman.id.au
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: linuxarm@huawei.com
Cc: abdhalee@linux.vnet.ibm.com
Cc: John Stultz <john.stultz@linaro.org>
Cc: akpm@linux-foundation.org
Cc: paulmck@linux.vnet.ibm.com
Cc: torvalds@linux-foundation.org
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/20170822084348.21436-1-npiggin@gmail.com
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git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
- Expression parser enhancements for metrics (Andi Kleen)
- Fix buffer overflow while freeing events in 'perf stat' (Andi Kleen)
- Fix static linking with elfutils's libdf and with libunwind
in Debian/Ubuntu (Konstantin Khlebnikov)
- Tighten detection of BPF events, avoiding matching some other PMU
events such as 'cpu/uops_executed.core,cmask=1/' as a .c source
file that ended up being considered a BPF event (Andi Kleen)
- Add Skylake server uncore JSON vendor events (Andi Kleen)
- Add support for printing new mem_info encodings, including
'perf test' checks (Andi Kleen)
- Really install manpages via 'make install-man' (Konstantin Khlebnikov)
- Fix documentation for perf_event_paranoid and perf_event_mlock_kb
sysctls (Konstantin Khlebnikov)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Lguest seems to be rather unused these days. It has seen only patches
ensuring it still builds the last two years and its official state is
"Odd Fixes".
Remove it in order to be able to clean up the paravirt code.
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: boris.ostrovsky@oracle.com
Cc: lguest@lists.ozlabs.org
Cc: rusty@rustcorp.com.au
Cc: xen-devel@lists.xenproject.org
Link: http://lkml.kernel.org/r/20170816173157.8633-3-jgross@suse.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Xen's paravirt patch function xen_patch() does some special casing for
irq_ops functions to apply relocations when those functions can be
patched inline instead of calls.
Unfortunately none of the special case function replacements is small
enough to be patched inline, so the special case never applies.
As xen_patch() will call paravirt_patch_default() in all cases it can
be just dropped. xen-asm.h doesn't seem necessary without xen_patch()
as the only thing left in it would be the definition of XEN_EFLAGS_NMI
used only once. So move that definition and remove xen-asm.h.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: boris.ostrovsky@oracle.com
Cc: lguest@lists.ozlabs.org
Cc: rusty@rustcorp.com.au
Cc: xen-devel@lists.xenproject.org
Link: http://lkml.kernel.org/r/20170816173157.8633-2-jgross@suse.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Michael Chan says:
====================
bnxt_en: bug fixes.
3 bug fixes related to XDP ring accounting in bnxt_setup_tc(), freeing
MSIX vectors when bnxt_re unregisters, and preserving the user-administered
PF MAC address when disabling SRIOV.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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