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Pull block IO fixes from Jens Axboe:
"Three small fixes that have been queued up and tested for this series:
- A bug fix for xen-blkfront from Bob Liu, fixing an issue with
incomplete requests during migration.
- A fix for an ancient issue in retrieving the IO priority of a
different PID than self, preventing that task from going away while
we access it. From Omar.
- A writeback fix from Tahsin, fixing a case where we'd call ihold()
with a zero ref count inode"
* 'for-linus' of git://git.kernel.dk/linux-block:
block: fix use-after-free in sys_ioprio_get()
writeback: inode cgroup wb switch should not call ihold()
xen-blkfront: save uncompleted reqs in blkfront_resume()
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Pull configfs fix from Christoph Hellwig:
"A fix from Marek for ppos handling in configfs_write_bin_file, which
was introduced in Linux 4.5, but didn't have any users until recently"
* tag 'configfs-for-4.7' of git://git.infradead.org/users/hch/configfs:
configfs: Remove ppos increment in configfs_write_bin_file
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* acpica-fixes:
ACPICA: Namespace: Fix namespace/interpreter lock ordering
* acpi-pci-fixes:
ACPI,PCI,IRQ: separate ISA penalty calculation
Revert "ACPI, PCI, IRQ: remove redundant code in acpi_irq_penalty_init()"
ACPI,PCI,IRQ: factor in PCI possible
* acpi-debug-fixes:
ACPI / debugger: Fix regression introduced by IS_ERR_VALUE() removal
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* pm-cpuidle-fixes:
cpuidle: Fix last_residency division
* pm-sleep-fixes:
x86/power/64: Fix kernel text mapping corruption during image restoration
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When using HEAD from
https://git.kernel.org/cgit/utils/kernel/ipvsadm/ipvsadm.git/,
the command:
ipvsadm --start-daemon backup --mcast-interface eth0.60 \
--mcast-group ff02::1:81
fails with the error message:
Argument list too long
whereas both:
ipvsadm --start-daemon master --mcast-interface eth0.60 \
--mcast-group ff02::1:81
and:
ipvsadm --start-daemon backup --mcast-interface eth0.60 \
--mcast-group 224.0.0.81
are successful.
The error message "Argument list too long" isn't helpful. The error occurs
because an IPv6 address is given in backup mode.
The error is in make_receive_sock() in net/netfilter/ipvs/ip_vs_sync.c,
since it fails to set the interface on the address or the socket before
calling inet6_bind() (via sock->ops->bind), where the test
'if (!sk->sk_bound_dev_if)' failed.
Setting sock->sk->sk_bound_dev_if on the socket before calling
inet6_bind() resolves the issue.
Fixes: d33288172e72 ("ipvs: add more mcast parameters for the sync daemon")
Signed-off-by: Quentin Armitage <quentin@armitage.org.uk>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
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This removes the use of enums in favor of much more readable and compact
structure arrays. This requires changing all the enum passing to pointers
instead, but the results are much cleaner.
Signed-off-by: Kees Cook <keescook@chromium.org>
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In preparation of referencing the jprobe entry points in a structure,
this moves them to the start of the source since they operate mostly
separately from everything else.
Signed-off-by: Kees Cook <keescook@chromium.org>
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This reorganizes module parameters and global variables in the source
so they're grouped together with comments. Also moves early function
declarations to the top of the file.
Signed-off-by: Kees Cook <keescook@chromium.org>
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The global variables used to track the active crashpoint and crashtype
are hard to distinguish from local variable names, so add a "lkdtm_"
prefix to them (or in the case of "lkdtm", add a "_jprobe" suffix).
Signed-off-by: Kees Cook <keescook@chromium.org>
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The "count" variable name was not easy to understand, since it was regularly
obscured by local variables of the same name, and it's purpose wasn't clear.
This renames it (and its lock) to "crash_count", which is more readable.
Signed-off-by: Kees Cook <keescook@chromium.org>
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There wasn't a good reason for keeping the enum and the names out of sync
by 1 position just to avoid "NONE" and "INVALID" from being in the string
lists.
Signed-off-by: Kees Cook <keescook@chromium.org>
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This splits all the remaining tests from lkdtm_core.c into the new
lkdtm_bugs.c file to help separate things better for readability.
Signed-off-by: Kees Cook <keescook@chromium.org>
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This splits the *_AFTER_FREE and related tests into the new lkdtm_heap.c
file to help separate things better for readability.
Signed-off-by: Kees Cook <keescook@chromium.org>
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This splits the EXEC_*, WRITE_* and related tests into the new lkdtm_perms.c
file to help separate things better for readability.
Signed-off-by: Kees Cook <keescook@chromium.org>
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This splits the USERCOPY_* tests into the new lkdtm_usercopy.c file to
help separate things better for readability.
Signed-off-by: Kees Cook <keescook@chromium.org>
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There is no good reason to have the alloc_size parameter currently. The
compiler-tricking value used to exercise the stack can just use a stack
address instead. Similarly hard-code cache_size.
Signed-off-by: Kees Cook <keescook@chromium.org>
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The upcoming HARDENED_USERCOPY checks will also block access to the
kernel text, so provide a test for this as well.
Signed-off-by: Kees Cook <keescook@chromium.org>
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Cavium erratum 27456 commit 104a0c02e8b1
("arm64: Add workaround for Cavium erratum 27456")
is applicable for thunderx-81xx pass1.0 SoC as well.
Adding code to enable to 81xx.
Signed-off-by: Ganapatrao Kulkarni <gkulkarni@cavium.com>
Reviewed-by: Andrew Pinski <apinski@cavium.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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If we take an exception while at EL1, the exception handler inherits
the original context's addr_limit and PSTATE.UAO values. To be consistent
always reset addr_limit and PSTATE.UAO on (re-)entry to EL1. This
prevents accidental re-use of the original context's addr_limit.
Based on a similar patch for arm from Russell King.
Cc: <stable@vger.kernel.org> # 4.6-
Acked-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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When a header file is removed from generic-y (often accompanied by the
addition of an arch specific header), the generated wrapper file will
persist, and in some cases may still take precedence over the new arch
header.
For example commit f1fe2d21f4e1 ("MIPS: Add definitions for extended
context") removed ucontext.h from generic-y in arch/mips/include/asm/,
and added an arch/mips/include/uapi/asm/ucontext.h. The continued use of
the wrapper when reusing a dirty build tree resulted in build failures
in arch/mips/kernel/signal.c:
arch/mips/kernel/signal.c: In function ‘sc_to_extcontext’:
arch/mips/kernel/signal.c:142:12: error: ‘struct ucontext’ has no member named ‘uc_extcontext’
return &uc->uc_extcontext;
^
Fix by detecting and removing wrapper headers in generated header
directories that do not correspond to a filename in generic-y, genhdr-y,
or the newly introduced generated-y.
Reported-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Reported-by: Hauke Mehrtens <hauke@hauke-m.de>
Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: linux-kbuild@vger.kernel.org
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Michal Marek <mmarek@suse.com>
Link: http://lkml.kernel.org/r/1466808144-23209-3-git-send-email-james.hogan@imgtec.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Track generated header files which aren't already in genhdr-y, alongside
generic-y wrappers in the */include/generated/[uapi/]asm/ directories.
Currently only x86 generates extra headers in these directories, for the
purposes of enumerating system calls for different ABIs, and xen
hypercalls.
This will allow the asm-generic wrapper handling code to remove stale
wrappers when files are removed from generic-y, without also removing
these headers which are generated separately.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-kbuild@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Cc: Michal Marek <mmarek@suse.com>
Link: http://lkml.kernel.org/r/1466808144-23209-2-git-send-email-james.hogan@imgtec.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Inability to locate a user mode specified transaction ID should not
lead to a kernel crash. For other than XS_TRANSACTION_START also
don't issue anything to xenbus if the specified ID doesn't match that
of any active transaction.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
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With the inclusion of atomic FETCH-OP variants, many places in the
kernel can make use of atomic_fetch_$op() to avoid the callers that
need to compute the value/state _before_ the operation.
Peter Zijlstra laid out the machinery but we are still missing the
simpler dec,inc() calls (which future patches will make use of).
This patch only deals with the generic code, as at least right now
no arch actually implement them -- which is similar to what the
OP-RETURN primitives currently do.
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: James.Bottomley@HansenPartnership.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: awalls@md.metrocast.net
Cc: bp@alien8.de
Cc: cw00.choi@samsung.com
Cc: davem@davemloft.net
Cc: dledford@redhat.com
Cc: dougthompson@xmission.com
Cc: gregkh@linuxfoundation.org
Cc: hans.verkuil@cisco.com
Cc: heiko.carstens@de.ibm.com
Cc: jikos@kernel.org
Cc: kys@microsoft.com
Cc: mchehab@osg.samsung.com
Cc: pfg@sgi.com
Cc: schwidefsky@de.ibm.com
Cc: sean.hefty@intel.com
Cc: sumit.semwal@linaro.org
Link: http://lkml.kernel.org/r/20160628215651.GA20048@linux-80c1.suse
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Signed-off-by: Ingo Molnar <mingo@kernel.org>
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smp_cond_load_acquire() is used to spin on a variable until some
expression involving that variable becomes true.
On arm64, we can build this using the LDXR and WFE instructions, since
clearing of the exclusive monitor as a result of the variable being
changed by another CPU generates an event, which will wake us up out of WFE.
This patch implements smp_cond_load_acquire() using LDXR and WFE, which
themselves are contained in an internal __cmpwait() function.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: catalin.marinas@arm.com
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1467049434-30451-1-git-send-email-will.deacon@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Fix the following sparse warnings:
kernel/jump_label.c:473:23: warning:
symbol 'jump_label_module_nb' was not declared. Should it be static?
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1466183980-8903-1-git-send-email-weiyj_lk@163.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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This patch adds full support for Intel SKL client uncore PMU:
- Add support for SKL client CPU uncore PMU, which is similar to the
BDW client PMU driver. (There are some differences in CBOX numbering
and uncore control MSR.)
- Add new support for SkyLake Mobile uncore PMUs, for both CPU and PCI
uncore functionality.
Signed-off-by: Kan Liang <kan.liang@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: http://lkml.kernel.org/r/1467208912-8179-1-git-send-email-kan.liang@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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It helps to actually read the right MSR..
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: linux-kernel@vger.kernel.org
Fixes: d4cf1949f968 ("perf/x86/intel: Add {rd,wr}lbr_{to,from} wrappers")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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new changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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The following commit:
66eb579e66ec ("perf: allow for PMU-specific event filtering")
added the pmu::filter_match() callback. This was intended to
avoid HW constraints on events from resulting in extremely
pessimistic scheduling.
However, pmu::filter_match() is only called for the leader of each event
group. When the leader is a SW event, we do not filter the groups, and
may fail at pmu::add() time, and when this happens we'll give up on
scheduling any event groups later in the list until they are rotated
ahead of the failing group.
This can result in extremely sub-optimal event scheduling behaviour,
e.g. if running the following on a big.LITTLE platform:
$ taskset -c 0 ./perf stat \
-e 'a57{context-switches,armv8_cortex_a57/config=0x11/}' \
-e 'a53{context-switches,armv8_cortex_a53/config=0x11/}' \
ls
<not counted> context-switches (0.00%)
<not counted> armv8_cortex_a57/config=0x11/ (0.00%)
24 context-switches (37.36%)
57589154 armv8_cortex_a53/config=0x11/ (37.36%)
Here the 'a53' event group was always eligible to be scheduled, but
the 'a57' group never eligible to be scheduled, as the task was always
affine to a Cortex-A53 CPU. The SW (group leader) event in the 'a57'
group was eligible, but the HW event failed at pmu::add() time,
resulting in ctx_flexible_sched_in giving up on scheduling further
groups with HW events.
One way of avoiding this is to check pmu::filter_match() on siblings
as well as the group leader. If any of these fail their
pmu::filter_match() call, we must skip the entire group before
attempting to add any events.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Fixes: 66eb579e66ec ("perf: allow for PMU-specific event filtering")
Link: http://lkml.kernel.org/r/1465917041-15339-1-git-send-email-mark.rutland@arm.com
[ Small readability edits. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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This allows to switch the card signal voltage level to 1.8 V, which is
needed for any ultra high speed modes to work.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
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Just one fix for a stupid thinko in a DP training pattern commit.
* 'linux-4.7' of git://github.com/skeggsb/linux:
drm/nouveau/disp/sor/gf119: select correct sor when poking training pattern
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into drm-fixes
Just a couple of fixes for amdgpu for 4.7:
- 2 small tonga powerplay fixes
- Additional Polaris fixes
* 'drm-fixes-4.7' of git://people.freedesktop.org/~agd5f/linux:
drm/amd/powerplay: Update CKS on/ CKS off voltage offset calculation.
drm/amd/powerplay: fix bug that get wrong polaris evv voltage.
drm/amd/powerplay: incorrectly use of the function return value
drm/amd/powerplay: fix incorrect voltage table value for tonga
drm/amd/powerplay: fix incorrect voltage table value for polaris10
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The "expert" menu was broken (split) such that all entries in it after
KALLSYMS were displayed in the "General setup" area instead of in the
"Expert users" area. Fix this by adding one kconfig dependency.
Yes, the Expert users menu is fragile. Problems like this have happened
several times in the past. I will attempt to isolate the Expert users
menu if there is interest in that.
Fixes: 4d5d5664c900 ("x86: kallsyms: disable absolute percpu symbols on !SMP")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: stable@vger.kernel.org # 4.6
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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As get the right evv voltage, update them to latest coefficients to
align with BB.
agd: squash in Slava's 32 bit build fix
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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value is 32 bits for polaris, not 16.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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'0' means true.
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Pull networking fixes from David Miller:
1) All users of AF_PACKET's fanout feature want a symmetric packet
header hash for load balancing purposes, so give it to them.
2) Fix vlan state synchronization in e1000e, from Jarod Wilson.
3) Use correct socket pointer in ip_skb_dst_mtu(), from Shmulik
Ladkani.
4) mlx5 bug fixes from Mohamad Haj Yahia, Daniel Jurgens, Matthew
Finlay, Rana Shahout, and Shaker Daibes. Mostly to do with
operation timeouts and PCI error handling.
5) Fix checksum handling in mirred packet action, from WANG Cong.
6) Set skb->dev correctly when transmitting in !protect_frames case of
macsec driver, from Daniel Borkmann.
7) Fix MTU calculation in geneve driver, from Haishuang Yan.
8) Missing netif_napi_del() in unregister path of qeth driver, from
Ursula Braun.
9) Handle malformed route netlink messages in decnet properly, from
Vergard Nossum.
10) Memory leak of percpu data in ipv6 routing code, from Martin KaFai
Lau.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (41 commits)
ipv6: Fix mem leak in rt6i_pcpu
net: fix decnet rtnexthop parsing
cxgb4: update latest firmware version supported
net/mlx5: Avoid setting unused var when modifying vport node GUID
bonding: fix enslavement slave link notifications
r8152: fix runtime function for RTL8152
qeth: delete napi struct when removing a qeth device
Revert "fsl/fman: fix error handling"
fsl/fman: fix error handling
cdc_ncm: workaround for EM7455 "silent" data interface
RDS: fix rds_tcp_init() error path
geneve: fix max_mtu setting
net: phy: dp83867: Fix initialization of PHYCR register
enc28j60: Fix race condition in enc28j60 driver
net: stmmac: Fix null-function call in ISR on stmmac1000
tipc: fix nl compat regression for link statistics
net: bcmsysport: Device stats are unsigned long
macsec: set actual real device for xmit when !protect_frames
net_sched: fix mirrored packets checksum
packet: Use symmetric hash for PACKET_FANOUT_HASH.
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Here are a collection of small fixes: at this time, we've got a
slightly high amount, but all small and trivial fixes, and nothing
scary can be seen there"
* tag 'sound-4.7-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (21 commits)
ALSA: hda/realtek: Add Lenovo L460 to docking unit fixup
ALSA: timer: Fix negative queue usage by racy accesses
ASoC: rt5645: fix reg-2f default value.
ASoC: fsl_ssi: Fix number of words per frame for I2S-slave mode
ALSA: au88x0: Fix calculation in vortex_wtdma_bufshift()
ALSA: hda - Add PCI ID for Kabylake-H
ALSA: echoaudio: Fix memory allocation
ASoC: Intel: atom: fix missing breaks that would cause the wrong operation to execute
ALSA: hda - fix read before array start
ASoC: cx20442: set tty->receiver_room in v253_open
ASoC: ak4613: Enable cache usage to fix crashes on resume
ASoC: wm8940: Enable cache usage to fix crashes on resume
ASoC: Intel: Skylake: Initialize module list for Broxton
ASoC: wm5102: Correct supported channels on trace compressed DAI
ASoC: wm5110: Add missing route from OUT3R to SYSCLK
ASoC: rt5670: fix HP Playback Volume control
ASoC: hdmi-codec: select CONFIG_HDMI
ASoC: davinci-mcasp: Fix dra7 DMA offset when using CFG port
ASoC: hdac_hdmi: Fix potential NULL dereference
ASoC: ak4613: Remove owner assignment from platform_driver
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git://git.kernel.org/pub/scm/linux/kernel/git/olof/chrome-platform
Pull chrome platform fix from Olof Johansson:
"A single fix this time, closing a window where ioctl args are fetched
twice"
* tag 'chrome-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/chrome-platform:
platform/chrome: cros_ec_dev - double fetch bug in ioctl
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There is a race condition in the AMD IOMMU init code that
causes requested unity mappings to be blocked by the IOMMU
for a short period of time. This results on boot failures
and IO_PAGE_FAULTs on some machines.
Fix this by making sure the unity mappings are installed
before all other DMA is blocked.
Fixes: aafd8ba0ca74 ('iommu/amd: Implement add_device and remove_device')
Cc: stable@vger.kernel.org # v4.2+
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Speedy join only works when the received packet is either broadcast or an
4addr unicast packet. Thus packets converted from broadcast to unicast via
the gateway handling code have to be converted to 4addr packets to allow
the receiving gateway server to add the sender address as temporary entry
to the translation table.
Not doing it will make the batman-adv gateway server drop the DHCP response
in many situations because it doesn't yet have the TT entry for the
destination of the DHCP response.
Fixes: 371351731e9c ("batman-adv: change interface_rx to get orig node")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Acked-by: Antonio Quartulli <a@unstable.cc>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
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When the core THP code is modifying the permissions of a huge page it
calls pmd_modify(), which unfortunately was clearing the _PAGE_HUGE bit
of the page table entry. The result can be kernel messages like:
mm/memory.c:397: bad pmd 000000040080004d.
mm/memory.c:397: bad pmd 00000003ff00004d.
mm/memory.c:397: bad pmd 000000040100004d.
or:
------------[ cut here ]------------
WARNING: at mm/mmap.c:3200 exit_mmap+0x150/0x158()
Modules linked in: ipv6 at24 octeon3_ethernet octeon_srio_nexus m25p80
CPU: 12 PID: 1295 Comm: pmderr Not tainted 3.10.87-rt80-Cavium-Octeon #4
Stack : 0000000040808000 0000000014009ce1 0000000000400004 ffffffff81076ba0
0000000000000000 0000000000000000 ffffffff85110000 0000000000000119
0000000000000004 0000000000000000 0000000000000119 43617669756d2d4f
0000000000000000 ffffffff850fda40 ffffffff85110000 0000000000000000
0000000000000000 0000000000000009 ffffffff809207a0 0000000000000c80
ffffffff80f1bf20 0000000000000001 000000ffeca36828 0000000000000001
0000000000000000 0000000000000001 000000ffeca7e700 ffffffff80886924
80000003fd7a0000 80000003fd7a39b0 80000003fdea8000 ffffffff80885780
80000003fdea8000 ffffffff80f12218 000000000000000c 000000000000050f
0000000000000000 ffffffff80865c4c 0000000000000000 0000000000000000
...
Call Trace:
[<ffffffff80865c4c>] show_stack+0x6c/0xf8
[<ffffffff80885780>] warn_slowpath_common+0x78/0xa8
[<ffffffff809207a0>] exit_mmap+0x150/0x158
[<ffffffff80882d44>] mmput+0x5c/0x110
[<ffffffff8088b450>] do_exit+0x230/0xa68
[<ffffffff8088be34>] do_group_exit+0x54/0x1d0
[<ffffffff8088bfc0>] __wake_up_parent+0x0/0x18
---[ end trace c7b38293191c57dc ]---
BUG: Bad rss-counter state mm:80000003fa168000 idx:1 val:1536
Fix by not clearing _PAGE_HUGE bit.
Signed-off-by: David Daney <david.daney@cavium.com>
Tested-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: stable@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/13687/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Handle the case when dev_alloc_skb returns NULL.
Cc: stable@vger.kernel.org
Fixes: 2b67f944f88c2 ("cfg80211: reuse existing page fragments in A-MSDU rx")
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
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No support for pbss results in a memory leak for the acl_data
(if parse_acl_data succeeds). Fix this by moving the ACL parsing later.
Cc: stable@vger.kernel.org
Fixes: 34d505193bd10 ("cfg80211: basic support for PBSS network type")
Signed-off-by: Purushottam Kushwaha <pkushwah@qti.qualcomm.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
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Since commit 4b6e2571bf00 the rapl perf module calls itself intel-rapl. That
name was already in use by the rapl powercap driver, which now fails to load
if the perf module is loaded. Fix the problem by renaming the perf module to
intel-rapl-perf, so that both modules can coexist.
Fixes: 4b6e2571bf00 ("x86/perf/intel/rapl: Make the Intel RAPL PMU driver modular")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1466694409-3620-1-git-send-email-ville.syrjala@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into clk-fixes
Allwinner clock fixes for 4.7
A bunch of changes for the display clocks merged in 4.7
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