15 May, 2019
9 commits
-
Merge more updates from Andrew Morton:
- a couple of hotfixes
- almost all of the rest of MM
- lib/ updates
- binfmt_elf updates
- autofs updates
- quite a lot of misc fixes and updates
- reiserfs, fatfs
- signals
- exec
- cpumask
- rapidio
- sysctl
- pids
- eventfd
- gcov
- panic
- pps- gdb script updates
- ipc updates
* emailed patches from Andrew Morton : (126 commits)
mm: memcontrol: fix NUMA round-robin reclaim at intermediate level
mm: memcontrol: fix recursive statistics correctness & scalabilty
mm: memcontrol: move stat/event counting functions out-of-line
mm: memcontrol: make cgroup stats and events query API explicitly local
drivers/virt/fsl_hypervisor.c: prevent integer overflow in ioctl
drivers/virt/fsl_hypervisor.c: dereferencing error pointers in ioctl
mm, memcg: rename ambiguously named memory.stat counters and functions
arch: remove and
treewide: replace #include with #include
fs/block_dev.c: Remove duplicate header
fs/cachefiles/namei.c: remove duplicate header
include/linux/sched/signal.h: replace `tsk' with `task'
fs/coda/psdev.c: remove duplicate header
ipc: do cyclic id allocation for the ipc object.
ipc: conserve sequence numbers in ipcmni_extend mode
ipc: allow boot time extension of IPCMNI from 32k to 16M
ipc/mqueue: optimize msg_get()
ipc/mqueue: remove redundant wq task assignment
ipc: prevent lockup on alloc_msg and free_msg
scripts/gdb: print cached rate in lx-clk-summary
... -
The kernel has only two users of proc_do_large_bitmap(), the kernel CPU
watchdog, and the ip_local_reserved_ports. Refer to watchdog_cpumask
and ip_local_reserved_ports in Documentation for further details on
these. When you input a large buffer into these, when it is larger than
PAGE_SIZE- 1, the input data gets misparsed, and the user get
incorrectly informed that the desired input value was set. This commit
implements a test which mimics and exploits that use case, it uses a
bitmap size, as in the watchdog case. The bitmap is used to test the
bitmap proc handler, proc_do_large_bitmap().The next commit fixes this issue.
[akpm@linux-foundation.org: move proc_do_large_bitmap() export to EOF]
[mcgrof@kernel.org: use new target description for backward compatibility]
[mcgrof@kernel.org: augment test number to 50, ran into issues with bash string comparisons when testing up to 50 cases.]
[mcgrof@kernel.org: introduce and use verify_diff_proc_file() to use diff]
[mcgrof@kernel.org: use mktemp for tmp file]
[mcgrof@kernel.org: merge shell test and C code]
[mcgrof@kernel.org: commit log love]
[mcgrof@kernel.org: export proc_do_large_bitmap() to allow for the test
[mcgrof@kernel.org: check for the return value when writing to the proc file]
Link: http://lkml.kernel.org/r/20190320222831.8243-6-mcgrof@kernel.org
Signed-off-by: Eric Sandeen
Signed-off-by: Luis Chamberlain
Acked-by: Kees Cook
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
On old kernels older new test knobs implemented on the test_sysctl
module may not be available. This is expected, and the selftests test
scripts should be able to run without failures on older kernels.Generalize a solution so that we test for each required test target file
for each test by requiring each test description to annotate their
respective test target file. If the target file does not exist, we skip
the test gracefully.Link: http://lkml.kernel.org/r/20190320222831.8243-5-mcgrof@kernel.org
Signed-off-by: Luis Chamberlain
Acked-by: Kees Cook
Cc: Eric Sandeen
Cc: Eric Sandeen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
When verify_diff_w() is used we care about the result, not the verbose
output, and although we use -q, that still gives us a chatty message
about if the files differ or not. Since verify_diff_w() uses stdinput
the chatty message says whether or not "-" matches the target file, and
this just seems rather odd. Better to just ignore that messsage all
together, what we really care about i sthe results, the return value and
we check for that.Link: http://lkml.kernel.org/r/20190320222831.8243-4-mcgrof@kernel.org
Signed-off-by: Luis Chamberlain
Acked-by: Kees Cook
Cc: Eric Sandeen
Cc: Eric Sandeen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Currently the test script checks for the existence of the sysctl test
module's directory path prior to loading it. We must first try to load
the module prior to checking for that path. This fixes the order for
the load / test.Link: http://lkml.kernel.org/r/20190320222831.8243-3-mcgrof@kernel.org
Signed-off-by: Luis Chamberlain
Acked-by: Kees Cook
Cc: Eric Sandeen
Cc: Eric Sandeen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Patch series "sysctl: add pending proc_do_large_bitmap fix".
Eric sent a fix out for proc_do_large_bitmap() last month for when using
a large input buffer. After patch review a test case for the issue was
built and submitted. I noticed there were a few issues with the tests,
but instead of just asking Eric to address them I've taken care of them
and ammended the commit where necessary. There's a few issues he
reported which I also address and fix in this series.Since we *do* expect users of these scripts to also use them on older
kernels, I've also addressed not breaking calling the script for them,
and gives us an easy way to easily extend our tests cases for future
kernels as well.Before anyone considers these for stable as minor fixes, I'd recommend
we also address the discrepancy on the read side of things: modify the
test script to use diff against the target file instead of using the
temp file.This patch (of 6):
We already call test_reqs(), no need to call it twice.
Link: http://lkml.kernel.org/r/20190320222831.8243-2-mcgrof@kernel.org
Signed-off-by: Luis Chamberlain
Acked-by: Kees Cook
Cc: Eric Sandeen
Cc: Eric Sandeen
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Test that trivially recursing script onto itself doesn't work.
Note: this is different test from ELOOP tests in execveat.c Those test
that execveat(2) doesn't follow symlinks when told to do so.Link: http://lkml.kernel.org/r/20190423192720.GA21433@avx2
Signed-off-by: Alexey Dobriyan
Cc: Shuah Khan
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Pull virtio updates from Michael Tsirkin:
- enable packed ring support for s390
- several fixes
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio/s390: enable packed ring
virtio/s390: DMA support for virtio-ccw
virtio/s390: use vring_create_virtqueue
virtio/virtio_ring: do some comment fixes
vhost-scsi: remove incorrect memory barrier
tools/virtio/ringtest: Remove bogus definition of BUG_ON()
virtio_ring: Fix potential mem leak in virtqueue_add_indirect_packed -
Pull PCI updates from Bjorn Helgaas:
"Enumeration changes:- Add _HPX Type 3 settings support, which gives firmware more
influence over device configuration (Alexandru Gagniuc)- Support fixed bus numbers from bridge Enhanced Allocation
capabilities (Subbaraya Sundeep)- Add "external-facing" DT property to identify cases where we
require IOMMU protection against untrusted devices (Jean-Philippe
Brucker)- Enable PCIe services for host controller drivers that use managed
host bridge alloc (Jean-Philippe Brucker)- Log PCIe port service messages with pci_dev, not the pcie_device
(Frederick Lawler)- Convert pciehp from pciehp_debug module parameter to generic
dynamic debug (Frederick Lawler)Peer-to-peer DMA:
- Add whitelist of Root Complexes that support peer-to-peer DMA
between Root Ports (Christian König)Native controller drivers:
- Add PCI host bridge DMA ranges for bridges that can't DMA
everywhere, e.g., iProc (Srinath Mannam)- Add Amazon Annapurna Labs PCIe host controller driver (Jonathan
Chocron)- Fix Tegra MSI target allocation so DMA doesn't generate unwanted
MSIs (Vidya Sagar)- Fix of_node reference leaks (Wen Yang)
- Fix Hyper-V module unload & device removal issues (Dexuan Cui)
- Cleanup R-Car driver (Marek Vasut)
- Cleanup Keystone driver (Kishon Vijay Abraham I)
- Cleanup i.MX6 driver (Andrey Smirnov)
Significant bug fixes:
- Reset Lenovo ThinkPad P50 GPU so nouveau works after reboot (Lyude
Paul)- Fix Switchtec firmware update performance issue (Wesley Sheng)
- Work around Pericom switch link retraining erratum (Stefan Mätje)"
* tag 'pci-v5.2-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (141 commits)
MAINTAINERS: Add Karthikeyan Mitran and Hou Zhiqiang for Mobiveil PCI
PCI: pciehp: Remove pointless MY_NAME definition
PCI: pciehp: Remove pointless PCIE_MODULE_NAME definition
PCI: pciehp: Remove unused dbg/err/info/warn() wrappers
PCI: pciehp: Log messages with pci_dev, not pcie_device
PCI: pciehp: Replace pciehp_debug module param with dyndbg
PCI: pciehp: Remove pciehp_debug uses
PCI/AER: Log messages with pci_dev, not pcie_device
PCI/DPC: Log messages with pci_dev, not pcie_device
PCI/PME: Replace dev_printk(KERN_DEBUG) with dev_info()
PCI/AER: Replace dev_printk(KERN_DEBUG) with dev_info()
PCI: Replace dev_printk(KERN_DEBUG) with dev_info(), etc
PCI: Replace printk(KERN_INFO) with pr_info(), etc
PCI: Use dev_printk() when possible
PCI: Cleanup setup-bus.c comments and whitespace
PCI: imx6: Allow asynchronous probing
PCI: dwc: Save root bus for driver remove hooks
PCI: dwc: Use devm_pci_alloc_host_bridge() to simplify code
PCI: dwc: Free MSI in dw_pcie_host_init() error path
PCI: dwc: Free MSI IRQ page in dw_pcie_free_msi()
...
14 May, 2019
1 commit
-
Pull x86 MDS mitigations from Thomas Gleixner:
"Microarchitectural Data Sampling (MDS) is a hardware vulnerability
which allows unprivileged speculative access to data which is
available in various CPU internal buffers. This new set of misfeatures
has the following CVEs assigned:CVE-2018-12126 MSBDS Microarchitectural Store Buffer Data Sampling
CVE-2018-12130 MFBDS Microarchitectural Fill Buffer Data Sampling
CVE-2018-12127 MLPDS Microarchitectural Load Port Data Sampling
CVE-2019-11091 MDSUM Microarchitectural Data Sampling Uncacheable MemoryMDS attacks target microarchitectural buffers which speculatively
forward data under certain conditions. Disclosure gadgets can expose
this data via cache side channels.Contrary to other speculation based vulnerabilities the MDS
vulnerability does not allow the attacker to control the memory target
address. As a consequence the attacks are purely sampling based, but
as demonstrated with the TLBleed attack samples can be postprocessed
successfully.The mitigation is to flush the microarchitectural buffers on return to
user space and before entering a VM. It's bolted on the VERW
instruction and requires a microcode update. As some of the attacks
exploit data structures shared between hyperthreads, full protection
requires to disable hyperthreading. The kernel does not do that by
default to avoid breaking unattended updates.The mitigation set comes with documentation for administrators and a
deeper technical view"* 'x86-mds-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
x86/speculation/mds: Fix documentation typo
Documentation: Correct the possible MDS sysfs values
x86/mds: Add MDSUM variant to the MDS documentation
x86/speculation/mds: Add 'mitigations=' support for MDS
x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off
x86/speculation/mds: Fix comment
x86/speculation/mds: Add SMT warning message
x86/speculation: Move arch_smt_update() call to after mitigation decisions
x86/speculation/mds: Add mds=full,nosmt cmdline option
Documentation: Add MDS vulnerability documentation
Documentation: Move L1TF to separate directory
x86/speculation/mds: Add mitigation mode VMWERV
x86/speculation/mds: Add sysfs reporting for MDS
x86/speculation/mds: Add mitigation control for MDS
x86/speculation/mds: Conditionally clear CPU buffers on idle entry
x86/kvm/vmx: Add MDS protection when L1D Flush is not active
x86/speculation/mds: Clear CPU buffers on exit to user
x86/speculation/mds: Add mds_clear_cpu_buffers()
x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests
x86/speculation/mds: Add BUG_MSBDS_ONLY
...
13 May, 2019
5 commits
-
Depending on used versions of libbpf, Clang, and kernel, it's possible to
have valid BPF object files with valid BTF information, that still won't
load successfully due to Clang emitting newer BTF features (e.g.,
BTF_KIND_FUNC, .BTF.ext's line_info/func_info, BTF_KIND_DATASEC, etc), that
are not yet supported by older kernel.This patch adds detection of BTF features and sanitizes BPF object's BTF
by substituting various supported BTF kinds, which have compatible layout:
- BTF_KIND_FUNC -> BTF_KIND_TYPEDEF
- BTF_KIND_FUNC_PROTO -> BTF_KIND_ENUM
- BTF_KIND_VAR -> BTF_KIND_INT
- BTF_KIND_DATASEC -> BTF_KIND_STRUCTReplacement is done in such a way as to preserve as much information as
possible (names, sizes, etc) where possible without violating kernel's
validation rules.v2->v3:
- remove duplicate #defines from libbpf_util.hv1->v2:
- add internal libbpf_internal.h w/ common stuff
- switch SK storage BTF to use new libbpf__probe_raw_btf()Reported-by: Alexei Starovoitov
Signed-off-by: Andrii Nakryiko
Signed-off-by: Daniel Borkmann -
The following files are generated after building /selftests/bpf/ and
should be added to .gitignore:- libbpf.pc
- libbpf.so.*Signed-off-by: Kelsey Skunberg
Signed-off-by: Daniel Borkmann -
Synchronise the bpf.h header under tools, to report the fixes and
additions recently brought to the documentation for the BPF helpers.Signed-off-by: Quentin Monnet
Acked-by: Jakub Kicinski
Signed-off-by: Daniel Borkmann -
Add a couple of tests to make sure branch(/call) offset adjustments
are correctly performed.Signed-off-by: Daniel Borkmann
-
BUG_ON(x) should raise an error if x is true, but assert(x) raises an
error if x is false. Remove this bogus definition of BUG_ON(), which
isn't used anyway.Signed-off-by: Jonathan Neuschäfer
Signed-off-by: Michael S. Tsirkin
10 May, 2019
5 commits
-
Pull powerpc updates from Michael Ellerman:
"Slightly delayed due to the issue with printk() calling
probe_kernel_read() interacting with our new user access prevention
stuff, but all fixed now.The only out-of-area changes are the addition of a cpuhp_state, small
additions to Documentation and MAINTAINERS updates.Highlights:
- Support for Kernel Userspace Access/Execution Prevention (like
SMAP/SMEP/PAN/PXN) on some 64-bit and 32-bit CPUs. This prevents
the kernel from accidentally accessing userspace outside
copy_to/from_user(), or ever executing userspace.- KASAN support on 32-bit.
- Rework of where we map the kernel, vmalloc, etc. on 64-bit hash to
use the same address ranges we use with the Radix MMU.- A rewrite into C of large parts of our idle handling code for
64-bit Book3S (ie. power8 & power9).- A fast path entry for syscalls on 32-bit CPUs, for a 12-17% speedup
in the null_syscall benchmark.- On 64-bit bare metal we have support for recovering from errors
with the time base (our clocksource), however if that fails
currently we hang in __delay() and never crash. We now have support
for detecting that case and short circuiting __delay() so we at
least panic() and reboot.- Add support for optionally enabling the DAWR on Power9, which had
to be disabled by default due to a hardware erratum. This has the
effect of enabling hardware breakpoints for GDB, the downside is a
badly behaved program could crash the machine by pointing the DAWR
at cache inhibited memory. This is opt-in obviously.- xmon, our crash handler, gets support for a read only mode where
operations that could change memory or otherwise disturb the system
are disabled.Plus many clean-ups, reworks and minor fixes etc.
Thanks to: Christophe Leroy, Akshay Adiga, Alastair D'Silva, Alexey
Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V, Anju T Sudhakar,
Anton Blanchard, Ben Hutchings, Bo YU, Breno Leitao, Cédric Le Goater,
Christopher M. Riedl, Christoph Hellwig, Colin Ian King, David Gibson,
Ganesh Goudar, Gautham R. Shenoy, George Spelvin, Greg Kroah-Hartman,
Greg Kurz, Horia Geantă, Jagadeesh Pagadala, Joel Stanley, Joe
Perches, Julia Lawall, Laurentiu Tudor, Laurent Vivier, Lukas Bulwahn,
Madhavan Srinivasan, Mahesh Salgaonkar, Mathieu Malaterre, Michael
Neuling, Mukesh Ojha, Nathan Fontenot, Nathan Lynch, Nicholas Piggin,
Nick Desaulniers, Oliver O'Halloran, Peng Hao, Qian Cai, Ravi
Bangoria, Rick Lindsley, Russell Currey, Sachin Sant, Stewart Smith,
Sukadev Bhattiprolu, Thomas Huth, Tobin C. Harding, Tyrel Datwyler,
Valentin Schneider, Wei Yongjun, Wen Yang, YueHaibing"* tag 'powerpc-5.2-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (205 commits)
powerpc/64s: Use early_mmu_has_feature() in set_kuap()
powerpc/book3s/64: check for NULL pointer in pgd_alloc()
powerpc/mm: Fix hugetlb page initialization
ocxl: Fix return value check in afu_ioctl()
powerpc/mm: fix section mismatch for setup_kup()
powerpc/mm: fix redundant inclusion of pgtable-frag.o in Makefile
powerpc/mm: Fix makefile for KASAN
powerpc/kasan: add missing/lost Makefile
selftests/powerpc: Add a signal fuzzer selftest
powerpc/booke64: set RI in default MSR
ocxl: Provide global MMIO accessors for external drivers
ocxl: move event_fd handling to frontend
ocxl: afu_irq only deals with IRQ IDs, not offsets
ocxl: Allow external drivers to use OpenCAPI contexts
ocxl: Create a clear delineation between ocxl backend & frontend
ocxl: Don't pass pci_dev around
ocxl: Split pci.c
ocxl: Remove some unused exported symbols
ocxl: Remove superfluous 'extern' from headers
ocxl: read_pasid never returns an error, so make it void
... -
Pull networking fixes from David Miller:
"Several bug fixes, many are quick merge-window regression cures:- When NLM_F_EXCL is not set, allow same fib rule insertion. From
Hangbin Liu.- Several cures in sja1105 DSA driver (while loop exit condition fix,
return of negative u8, etc.) from Vladimir Oltean.- Handle tx/rx delays in realtek PHY driver properly, from Serge
Semin.- Double free in cls_matchall, from Pieter Jansen van Vuuren.
- Disable SIOCSHWTSTAMP in macvlan/vlan containers, from Hangbin Liu.
- Endainness fixes in aqc111, from Oliver Neukum.
- Handle errors in packet_init properly, from Haibing Yue.
- Various W=1 warning fixes in kTLS, from Jakub Kicinski"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (34 commits)
nfp: add missing kdoc
net/tls: handle errors from padding_length()
net/tls: remove set but not used variables
docs/btf: fix the missing section marks
nfp: bpf: fix static check error through tightening shift amount adjustment
selftests: bpf: initialize bpf_object pointers where needed
packet: Fix error path in packet_init
net/tcp: use deferred jump label for TCP acked data hook
net: aquantia: fix undefined devm_hwmon_device_register_with_info reference
aqc111: fix double endianness swap on BE
aqc111: fix writing to the phy on BE
aqc111: fix endianness issue in aqc111_change_mtu
vlan: disable SIOCSHWTSTAMP in container
macvlan: disable SIOCSHWTSTAMP in container
tipc: fix hanging clients using poll with EPOLLOUT flag
tuntap: synchronize through tfiles array instead of tun->numqueues
tuntap: fix dividing by zero in ebpf queue selection
dwmac4_prog_mtl_tx_algorithms() missing write operation
ptp_qoriq: fix NULL access if ptp dt node missing
net/sched: avoid double free on matchall reoffload
... -
There are a few tests which call bpf_object__close on uninitialized
bpf_object*, which may segfault. Explicitly zero-initialise these pointers
to avoid this.Signed-off-by: Lorenz Bauer
Acked-by: Martin KaFai Lau
Signed-off-by: Alexei Starovoitov -
Pull cgroup updates from Tejun Heo:
"This includes Roman's cgroup2 freezer implementation.It's a separate machanism from cgroup1 freezer. Instead of blocking
user tasks in arbitrary uninterruptible sleeps, the new implementation
extends jobctl stop - frozen tasks are trapped in jobctl stop until
thawed and can be killed and ptraced. Lots of thanks to Oleg for
sheperding the effort.Other than that, there are a few trivial changes"
* 'for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: never call do_group_exit() with task->frozen bit set
kernel: cgroup: fix misuse of %x
cgroup: get rid of cgroup_freezer_frozen_exit()
cgroup: prevent spurious transition into non-frozen state
cgroup: Remove unused cgrp variable
cgroup: document cgroup v2 freezer interface
cgroup: add tracing points for cgroup v2 freezer
cgroup: make TRACE_CGROUP_PATH irq-safe
kselftests: cgroup: add freezer controller self-tests
kselftests: cgroup: don't fail on cg_kill_all() error in cg_destroy()
cgroup: cgroup v2 freezer
cgroup: protect cgroup->nr_(dying_)descendants by css_set_lock
cgroup: implement __cgroup_task_count() helper
cgroup: rename freezer.c into legacy_freezer.c
cgroup: remove extra cgroup_migrate_finish() call -
Pull arch/csky perf update from Guo Ren:
"Add support for perf unwind-libdw"* tag 'csky-for-linus-5.2-perf-unwind-libdw' of git://github.com/c-sky/csky-linux:
csky: Add support for perf unwind-libdw
09 May, 2019
4 commits
-
This patch add support for DWARF register mappings and libdw registers
initialization, which is used by perf callchain analyzing, eg:perf record --call-graph=dwarf
Here is elfutils csky backend patch set:
https://sourceware.org/ml/elfutils-devel/2019-q2/msg00007.htmlSigned-off-by: Mao Han
Signed-off-by: Guo Ren
Cc: Peter Zijlstra
Cc: Ingo Molnar
Cc: Arnaldo Carvalho de Melo
Cc: Alexander Shishkin
Cc: Jiri Olsa
Cc: Namhyung Kim
Cc: Arnd Bergmann -
Pull documentation updates from Jonathan Corbet:
"A reasonably busy cycle for docs, including:- Lots of work on the Chinese and Italian translations
- Some license-rules clarifications from Christoph
- Various build-script fixes
- A new document on memory models
- RST conversion of the live-patching docs
- The usual collection of typo fixes and corrections"
* tag 'docs-5.2' of git://git.lwn.net/linux: (140 commits)
docs/livepatch: Unify style of livepatch documentation in the ReST format
docs: livepatch: convert docs to ReST and rename to *.rst
scripts/documentation-file-ref-check: detect broken :doc:`foo`
scripts/documentation-file-ref-check: don't parse Next/ dir
LICENSES: Rename other to deprecated
LICENSES: Clearly mark dual license only licenses
docs: Don't reference the ZLib license in license-rules.rst
docs/vm: Minor editorial changes in the THP and hugetlbfs
docs/vm: add documentation of memory models
doc:it_IT: translation alignment
doc: fix typo in PGP guide
dontdiff: update with Kconfig build artifacts
docs/zh_CN: fix typos in 1.Intro.rst file
docs/zh_CN: redirect CoC docs to Chinese version
doc: mm: migration doesn't use FOLL_SPLIT anymore
docs: doc-guide: remove the extension from .rst files
doc: kselftest: Fix KBUILD_OUTPUT usage instructions
docs: trace: fix some Sphinx warnings
docs: speculation.txt: mark example blocks as such
docs: ntb.txt: add blank lines to clean up some Sphinx warnings
... -
Pull RISC-V nolibc header update from Willy Tarreau:
"This single commit adds support for the RISCV architecture to the
nolibc header file. Currently the file is only used by rcutorture but
Pranith Kumar who contributed it would like to have this work merged.I only did some trivial tests to verify that it does not break x86,
which I consider sufficient since all the code is cleanly enclosed
inside a single #if/endif block"* tag 'nolibc-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wtarreau/nolibc:
tool headers nolibc: add RISCV support -
Pull media updates from Mauro Carvalho Chehab:
- remove the deprecated Zoran driver from staging
- new I2C driver: ST MIPID02 CSI-2 camera bridge
- new platform driver: Amlogic Meson AO CEC G12A Controller
- add support for USB audio via the media controller
- au0828 driver is now supported via the media controller on both on
media and on usbaudio- new kernel test for the media device allocator
- add support for stateless decoder at vicodec driver
- lots of other driver improvements fixes and cleanups
* tag 'media/v5.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (218 commits)
media: dt-bindings: aspeed-video: Add missing memory-region property
media: platform: Aspeed: Make reserved memory optional
media: platform: Aspeed: Remove use of reset line
media: stm32-dcmi: return appropriate error codes during probe
media: vsp1: Add support for missing 16-bit RGB555 formats
media: vsp1: Add support for missing 16-bit RGB444 formats
media: vsp1: Add support for missing 32-bit RGB formats
media: v4l: Add definitions for missing 16-bit RGB555 formats
media: v4l: Add definitions for missing 16-bit RGB4444 formats
media: v4l: Add definitions for missing 32-bit RGB formats
media: zoran: remove deprecated driver
media: MAINTAINERS: Update AO CEC with ao-cec-g12a driver
media: platform: meson: Add Amlogic Meson G12A AO CEC Controller driver
media: dt-bindings: media: meson-ao-cec: Add G12A AO-CEC-B Compatible
media: cros-ec-cec: decrement HDMI device refcount
media: seco-cec: decrement HDMI device refcount
media: tegra_cec: use new cec_notifier_parse_hdmi_phandle helper
media: stih_cec: use new cec_notifier_parse_hdmi_phandle helper
media: s5p_cec: use new cec_notifier_parse_hdmi_phandle helper
media: meson: ao-cec: use new cec_notifier_parse_hdmi_phandle helper
...
08 May, 2019
9 commits
-
This adds support for the RISCV architecture (32 and 64 bit) to the
nolibc header file.Signed-off-by: Pranith Kumar
[willy: minimal rewording of the commit message]
Signed-off-by: Willy Tarreau -
Pull networking updates from David Miller:
"Highlights:1) Support AES128-CCM ciphers in kTLS, from Vakul Garg.
2) Add fib_sync_mem to control the amount of dirty memory we allow to
queue up between synchronize RCU calls, from David Ahern.3) Make flow classifier more lockless, from Vlad Buslov.
4) Add PHY downshift support to aquantia driver, from Heiner
Kallweit.5) Add SKB cache for TCP rx and tx, from Eric Dumazet. This reduces
contention on SLAB spinlocks in heavy RPC workloads.6) Partial GSO offload support in XFRM, from Boris Pismenny.
7) Add fast link down support to ethtool, from Heiner Kallweit.
8) Use siphash for IP ID generator, from Eric Dumazet.
9) Pull nexthops even further out from ipv4/ipv6 routes and FIB
entries, from David Ahern.10) Move skb->xmit_more into a per-cpu variable, from Florian
Westphal.11) Improve eBPF verifier speed and increase maximum program size,
from Alexei Starovoitov.12) Eliminate per-bucket spinlocks in rhashtable, and instead use bit
spinlocks. From Neil Brown.13) Allow tunneling with GUE encap in ipvs, from Jacky Hu.
14) Improve link partner cap detection in generic PHY code, from
Heiner Kallweit.15) Add layer 2 encap support to bpf_skb_adjust_room(), from Alan
Maguire.16) Remove SKB list implementation assumptions in SCTP, your's truly.
17) Various cleanups, optimizations, and simplifications in r8169
driver. From Heiner Kallweit.18) Add memory accounting on TX and RX path of SCTP, from Xin Long.
19) Switch PHY drivers over to use dynamic featue detection, from
Heiner Kallweit.20) Support flow steering without masking in dpaa2-eth, from Ioana
Ciocoi.21) Implement ndo_get_devlink_port in netdevsim driver, from Jiri
Pirko.22) Increase the strict parsing of current and future netlink
attributes, also export such policies to userspace. From Johannes
Berg.23) Allow DSA tag drivers to be modular, from Andrew Lunn.
24) Remove legacy DSA probing support, also from Andrew Lunn.
25) Allow ll_temac driver to be used on non-x86 platforms, from Esben
Haabendal.26) Add a generic tracepoint for TX queue timeouts to ease debugging,
from Cong Wang.27) More indirect call optimizations, from Paolo Abeni"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1763 commits)
cxgb4: Fix error path in cxgb4_init_module
net: phy: improve pause mode reporting in phy_print_status
dt-bindings: net: Fix a typo in the phy-mode list for ethernet bindings
net: macb: Change interrupt and napi enable order in open
net: ll_temac: Improve error message on error IRQ
net/sched: remove block pointer from common offload structure
net: ethernet: support of_get_mac_address new ERR_PTR error
net: usb: smsc: fix warning reported by kbuild test robot
staging: octeon-ethernet: Fix of_get_mac_address ERR_PTR check
net: dsa: support of_get_mac_address new ERR_PTR error
net: dsa: sja1105: Fix status initialization in sja1105_get_ethtool_stats
vrf: sit mtu should not be updated when vrf netdev is the link
net: dsa: Fix error cleanup path in dsa_init_module
l2tp: Fix possible NULL pointer dereference
taprio: add null check on sched_nest to avoid potential null pointer dereference
net: mvpp2: cls: fix less than zero check on a u32 variable
net_sched: sch_fq: handle non connected flows
net_sched: sch_fq: do not assume EDT packets are ordered
net: hns3: use devm_kcalloc when allocating desc_cb
net: hns3: some cleanup for struct hns3_enet_ring
... -
Pull block updates from Jens Axboe:
"Nothing major in this series, just fixes and improvements all over the
map. This contains:- Series of fixes for sed-opal (David, Jonas)
- Fixes and performance tweaks for BFQ (via Paolo)
- Set of fixes for bcache (via Coly)
- Set of fixes for md (via Song)
- Enabling multi-page for passthrough requests (Ming)
- Queue release fix series (Ming)
- Device notification improvements (Martin)
- Propagate underlying device rotational status in loop (Holger)
- Removal of mtip32xx trim support, which has been disabled for years
(Christoph)- Improvement and cleanup of nvme command handling (Christoph)
- Add block SPDX tags (Christoph)
- Cleanup/hardening of bio/bvec iteration (Christoph)
- A few NVMe pull requests (Christoph)
- Removal of CONFIG_LBDAF (Christoph)
- Various little fixes here and there"
* tag 'for-5.2/block-20190507' of git://git.kernel.dk/linux-block: (164 commits)
block: fix mismerge in bvec_advance
block: don't drain in-progress dispatch in blk_cleanup_queue()
blk-mq: move cancel of hctx->run_work into blk_mq_hw_sysfs_release
blk-mq: always free hctx after request queue is freed
blk-mq: split blk_mq_alloc_and_init_hctx into two parts
blk-mq: free hw queue's resource in hctx's release handler
blk-mq: move cancel of requeue_work into blk_mq_release
blk-mq: grab .q_usage_counter when queuing request from plug code path
block: fix function name in comment
nvmet: protect discovery change log event list iteration
nvme: mark nvme_core_init and nvme_core_exit static
nvme: move command size checks to the core
nvme-fabrics: check more command sizes
nvme-pci: check more command sizes
nvme-pci: remove an unneeded variable initialization
nvme-pci: unquiesce admin queue on shutdown
nvme-pci: shutdown on timeout during deletion
nvme-pci: fix psdt field for single segment sgls
nvme-multipath: don't print ANA group state by default
nvme-multipath: split bios with the ns_head bio_set before submitting
... -
Minor conflict with the DSA legacy code removal.
Signed-off-by: David S. Miller
-
Convert livepatch documentation to ReST format. The changes
are mostly trivial, as the documents are already on a good
shape. Just a few markup changes are needed for Sphinx to
properly parse the docs.The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- The in-file TOC becomes a comment, in order to skip it from the
output, as Sphinx already generates an index there.
- adjust title markups.At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.Signed-off-by: Mauro Carvalho Chehab
Signed-off-by: Petr Mladek
Acked-by: Miroslav Benes
Acked-by: Josh Poimboeuf
Acked-by: Joe Lawrence
Reviewed-by: Kamalesh Babulal
Signed-off-by: Jonathan Corbet -
…/git/gregkh/char-misc
Pull char/misc update part 2 from Greg KH:
"Here is the "real" big set of char/misc driver patches for 5.2-rc1Loads of different driver subsystem stuff in here, all over the places:
- thunderbolt driver updates
- habanalabs driver updates
- nvmem driver updates
- extcon driver updates
- intel_th driver updates
- mei driver updates
- coresight driver updates
- soundwire driver cleanups and updates
- fastrpc driver updates
- other minor driver updates
- chardev minor fixupsFeels like this tree is getting to be a dumping ground of "small
driver subsystems" these days. Which is fine with me, if it makes
things easier for those subsystem maintainers.All of these have been in linux-next for a while with no reported
issues"* tag 'char-misc-5.2-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (255 commits)
intel_th: msu: Add current window tracking
intel_th: msu: Add a sysfs attribute to trigger window switch
intel_th: msu: Correct the block wrap detection
intel_th: Add switch triggering support
intel_th: gth: Factor out trace start/stop
intel_th: msu: Factor out pipeline draining
intel_th: msu: Switch over to scatterlist
intel_th: msu: Replace open-coded list_{first,last,next}_entry variants
intel_th: Only report useful IRQs to subdevices
intel_th: msu: Start handling IRQs
intel_th: pci: Use MSI interrupt signalling
intel_th: Communicate IRQ via resource
intel_th: Add "rtit" source device
intel_th: Skip subdevices if their MMIO is missing
intel_th: Rework resource passing between glue layers and core
intel_th: SPDX-ify the documentation
intel_th: msu: Fix single mode with IOMMU
coresight: funnel: Support static funnel
dt-bindings: arm: coresight: Unify funnel DT binding
coresight: replicator: Add new device id for static replicator
... -
Pull ktest updates from Steven Rostedt:
"Minor updates to ktest.pl- Handle meta characters in grub memu
- Use configurable reboot return code for handling ssh reboots
- Display names and iteration number on error message"
* tag 'ktest-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest: introduce REBOOT_RETURN_CODE to confirm the result of REBOOT
ktest: Add support for meta characters in GRUB_MENU
ktest: Show name and iteration on errors -
Daniel Borkmann says:
====================
pull-request: bpf-next 2019-05-06The following pull-request contains BPF updates for your *net-next* tree.
The main changes are:
1) Two AF_XDP libbpf fixes for socket teardown; first one an invalid
munmap and the other one an invalid skmap cleanup, both from Björn.2) More graceful CONFIG_DEBUG_INFO_BTF handling when pahole is not
present in the system to generate vmlinux btf info, from Andrii.3) Fix libbpf and thus fix perf build error with uClibc on arc
architecture, from Vineet.4) Fix missing libbpf_util.h header install in libbpf, from William.
5) Exclude bash-completion/bpftool from .gitignore pattern, from Masahiro.
6) Fix up rlimit in test_libbpf_open kselftest test case, from Yonghong.
7) Minor misc cleanups.
====================Signed-off-by: David S. Miller
-
Daniel Borkmann says:
====================
pull-request: bpf 2019-05-06The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Two x32 JIT fixes: one which has buggy signed comparisons in 64
bit conditional jumps and another one for 64 bit negation, both
from Wang.
====================Signed-off-by: David S. Miller
07 May, 2019
7 commits
-
Pull livepatching updates from Jiri Kosina:
- livepatching kselftests improvements from Joe Lawrence and Miroslav
Benes- making use of gcc's -flive-patching option when available, from
Miroslav Benes- kobject handling cleanups, from Petr Mladek
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching:
livepatch: Remove duplicated code for early initialization
livepatch: Remove custom kobject state handling
livepatch: Convert error about unsupported reliable stacktrace into a warning
selftests/livepatch: Add functions.sh to TEST_PROGS_EXTENDED
kbuild: use -flive-patching when CONFIG_LIVEPATCH is enabled
selftests/livepatch: use TEST_PROGS for test scripts -
…/git/shuah/linux-kselftest
Pull Kselftest updates from Shuah Khan:
- fixes to seccomp test, and kselftest framework
- cleanups to remove duplicate header defines
- fixes to efivarfs "make clean" target
- cgroup cleanup path
- Moving the IMA kexec_load selftest to selftests/kexec work from Mimi
Johar and Petr Vorel- A framework to kselftest for writing kernel test modules addition
from Tobin C. Harding* tag 'linux-kselftest-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (29 commits)
selftests: build and run gpio when output directory is the src dir
selftests/ipc: Fix msgque compiler warnings
selftests/efivarfs: clean up test files from test_create*()
selftests: fix headers_install circular dependency
selftests/kexec: update get_secureboot_mode
selftests/kexec: make kexec_load test independent of IMA being enabled
selftests/kexec: check kexec_load and kexec_file_load are enabled
selftests/kexec: Add missing '=y' to config options
selftests/kexec: kexec_file_load syscall test
selftests/kexec: define "require_root_privileges"
selftests/kexec: define common logging functions
selftests/kexec: define a set of common functions
selftests/kexec: cleanup the kexec selftest
selftests/kexec: move the IMA kexec_load selftest to selftests/kexec
selftests/harness: Add 30 second timeout per test
selftests/seccomp: Handle namespace failures gracefully
selftests: cgroup: fix cleanup path in test_memcg_subtree_control()
selftests: efivarfs: remove the test_create_read file if it was exist
rseq/selftests: Adapt number of threads to the number of detected cpus
lib: Add test module for strscpy_pad
... -
Pull ACPI updates from Rafael Wysocki:
"These rearrange the ACPI documentation by converting it to the .rst
format and splitting it into clear categories (admin guide, driver
API, firmware guide), switch over multiple users of a problematic
library function to a new better one, update the ACPICA code in the
kernel to a new upstream release, fix a few issues, improve power
device management diagnostics and do some cleanups.Specifics:
- Convert the ACPI documentation in the kernel source tree to the
.rst format and split it into the admin guide, driver API and
firmware guide parts (Changbin Du).- Add a PRP0001 usage example to the ACPI documentation (Thomas
Preston).- Switch over the users of the acpi_dev_get_first_match_name()
library function which turned out to be problematic to a new,
better one called acpi_dev_get_first_match_dev() (Andy Shevchenko,
YueHaibing).- Update the ACPICA code in the kernel to upstream release 20190405
including:
* Null pointer dereference check in acpi_ns_delete_node() (Erik
Schmauss).
* Multiple macro and function name changes (Bob Moore).
* Predefined operation region name fix (Erik Schmauss).- Fix hibernation issue on systems using the Baytrail and Cherrytrail
Intel SoCs introduced during the 4.20 development cycle (Hans de
Goede).- Add Sony VPCEH3U1E to the backlight quirk list (Zhang Rui).
- Fix button handling during system resume (Zhang Rui).
- Add a device PM diagnostic message (Rafael Wysocki).
- Clean up the code, comments and white space in multiple places
(Bjorn Helgaas, Gustavo Silva, Kefeng Wang)"* tag 'acpi-5.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (53 commits)
Documentation: ACPI: move video_extension.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move ssdt-overlays.txt to admin-guide/acpi and convert to reST
Documentation: ACPI: move lpit.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move cppc_sysfs.txt to admin-guide/acpi and convert to reST
Documentation: ACPI: move apei/einj.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move apei/output_format.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move aml-debugger.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move method-tracing.txt to firmware-guide/acpi and convert to rsST
Documentation: ACPI: move debug.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move dsd/data-node-references.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move dsd/graph.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move acpi-lid.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move i2c-muxes.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move dsdt-override.txt to admin-guide/acpi and convert to reST
Documentation: ACPI: move initrd_table_override.txt to admin-guide/acpi and convert to reST
Documentation: ACPI: move method-customizing.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move gpio-properties.txt to firmware-guide/acpi and convert to reST
Documentation: ACPI: move DSD-properties-rules.txt to firmware-guide/acpi and covert to reST
Documentation: ACPI: move scan_handlers.txt to driver-api/acpi and convert to reST
Documentation: ACPI: move linuxized-acpica.txt to driver-api/acpi and convert to reST
... -
Pull s390 updates from Martin Schwidefsky:
- Support for kernel address space layout randomization
- Add support for kernel image signature verification
- Convert s390 to the generic get_user_pages_fast code
- Convert s390 to the stack unwind API analog to x86
- Add support for CPU directed interrupts for PCI devices
- Provide support for MIO instructions to the PCI base layer, this will
allow the use of direct PCI mappings in user space code- Add the basic KVM guest ultravisor interface for protected VMs
- Add AT_HWCAP bits for several new hardware capabilities
- Update the CPU measurement facility counter definitions to SVN 6
- Arnds cleanup patches for his quest to get LLVM compiles working
- A vfio-ccw update with bug fixes and support for halt and clear
- Improvements for the hardware TRNG code
- Another round of cleanup for the QDIO layer
- Numerous cleanups and bug fixes
* tag 's390-5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (98 commits)
s390/vdso: drop unnecessary cc-ldoption
s390: fix clang -Wpointer-sign warnigns in boot code
s390: drop CONFIG_VIRT_TO_BUS
s390: boot, purgatory: pass $(CLANG_FLAGS) where needed
s390: only build for new CPUs with clang
s390: simplify disabled_wait
s390/ftrace: use HAVE_FUNCTION_GRAPH_RET_ADDR_PTR
s390/unwind: introduce stack unwind API
s390/opcodes: add missing instructions to the disassembler
s390/bug: add entry size to the __bug_table section
s390: use proper expoline sections for .dma code
s390/nospec: rename assembler generated expoline thunks
s390: add missing ENDPROC statements to assembler functions
locking/lockdep: check for freed initmem in static_obj()
s390/kernel: add support for kernel address space layout randomization (KASLR)
s390/kernel: introduce .dma sections
s390/sclp: do not use static sccbs
s390/kprobes: use static buffer for insn_page
s390/kernel: convert SYSCALL and PGM_CHECK handlers to .quad
s390/kernel: build a relocatable kernel
... -
Pull perf updates from Ingo Molnar:
"The main kernel changes were:- add support for Intel's "adaptive PEBS v4" - which embedds LBS data
in PEBS records and can thus batch up and reduce the IRQ (NMI) rate
significantly - reducing overhead and making call-graph profiling
less intrusive.- add Intel CPU core and uncore support updates for Tremont, Icelake,
- extend the x86 PMU constraints scheduler with 'constraint ranges'
to better support Icelake hw constraints,- make x86 call-chain support work better with CONFIG_FRAME_POINTER=y
- misc other changes
Tooling changes:
- updates to the main tools: 'perf record', 'perf trace', 'perf
stat'- updated Intel and S/390 vendor events
- libtraceevent updates
- misc other updates and fixes"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (69 commits)
perf/x86: Make perf callchains work without CONFIG_FRAME_POINTER
watchdog: Fix typo in comment
perf/x86/intel: Add Tremont core PMU support
perf/x86/intel/uncore: Add Intel Icelake uncore support
perf/x86/msr: Add Icelake support
perf/x86/intel/rapl: Add Icelake support
perf/x86/intel/cstate: Add Icelake support
perf/x86/intel: Add Icelake support
perf/x86: Support constraint ranges
perf/x86/lbr: Avoid reading the LBRs when adaptive PEBS handles them
perf/x86/intel: Support adaptive PEBS v4
perf/x86/intel/ds: Extract code of event update in short period
perf/x86/intel: Extract memory code PEBS parser for reuse
perf/x86: Support outputting XMM registers
perf/x86/intel: Force resched when TFA sysctl is modified
perf/core: Add perf_pmu_resched() as global function
perf/headers: Fix stale comment for struct perf_addr_filter
perf/core: Make perf_swevent_init_cpu() static
perf/x86: Add sanity checks to x86_schedule_events()
perf/x86: Optimize x86_schedule_events()
... -
Pull RCU updates from Ingo Molnar:
"This cycles's RCU changes include:- a couple of straggling RCU flavor consolidation updates
- SRCU updates
- RCU CPU stall-warning updates
- torture-test updates
- an LKMM commit adding support for synchronize_srcu_expedited()
- documentation updates
- miscellaneous fixes"
* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (57 commits)
net/ipv4/netfilter: Update comment from call_rcu_bh() to call_rcu()
tools/memory-model: Add support for synchronize_srcu_expedited()
doc/kprobes: Update obsolete RCU update functions
torture: Suppress false-positive CONFIG_INITRAMFS_SOURCE complaint
locktorture: NULL cxt.lwsa and cxt.lrsa to allow bad-arg detection
rcuperf: Fix cleanup path for invalid perf_type strings
rcutorture: Fix cleanup path for invalid torture_type strings
rcutorture: Fix expected forward progress duration in OOM notifier
rcutorture: Remove ->ext_irq_conflict field
rcutorture: Make rcutorture_extend_mask() comment match the code
tools/.../rcutorture: Convert to SPDX license identifier
torture: Don't try to offline the last CPU
rcu: Fix nohz status in stall warning
rcu: Move forward-progress checkers into tree_stall.h
rcu: Move irq-disabled stall-warning checking to tree_stall.h
rcu: Organize functions in tree_stall.h
rcu: Move FAST_NO_HZ stall-warning code to tree_stall.h
rcu: Inline RCU stall-warning info helper functions
rcu: Move rcu_print_task_exp_stall() to tree_exp.h
rcu: Inline RCU task stall-warning helper functions
... -
Pull objtool updates from Ingo Molnar:
"This is a series from Peter Zijlstra that adds x86 build-time uaccess
validation of SMAP to objtool, which will detect and warn about the
following uaccess API usage bugs and weirdnesses:- call to %s() with UACCESS enabled
- return with UACCESS enabled
- return with UACCESS disabled from a UACCESS-safe function
- recursive UACCESS enable
- redundant UACCESS disable
- UACCESS-safe disables UACCESSAs it turns out not leaking uaccess permissions outside the intended
uaccess functionality is hard when the interfaces are complex and when
such bugs are mostly dormant.As a bonus we now also check the DF flag. We had at least one
high-profile bug in that area in the early days of Linux, and the
checking is fairly simple. The checks performed and warnings emitted
are:- call to %s() with DF set
- return with DF set
- return with modified stack frame
- recursive STD
- redundant CLDIt's all x86-only for now, but later on this can also be used for PAN
on ARM and objtool is fairly cross-platform in principle.While all warnings emitted by this new checking facility that got
reported to us were fixed, there might be GCC version dependent
warnings that were not reported yet - which we'll address, should they
trigger.The warnings are non-fatal build warnings"
* 'core-objtool-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
mm/uaccess: Use 'unsigned long' to placate UBSAN warnings on older GCC versions
x86/uaccess: Dont leak the AC flag into __put_user() argument evaluation
sched/x86_64: Don't save flags on context switch
objtool: Add Direction Flag validation
objtool: Add UACCESS validation
objtool: Fix sibling call detection
objtool: Rewrite alt->skip_orig
objtool: Add --backtrace support
objtool: Rewrite add_ignores()
objtool: Handle function aliases
objtool: Set insn->func for alternatives
x86/uaccess, kcov: Disable stack protector
x86/uaccess, ftrace: Fix ftrace_likely_update() vs. SMAP
x86/uaccess, ubsan: Fix UBSAN vs. SMAP
x86/uaccess, kasan: Fix KASAN vs SMAP
x86/smap: Ditch __stringify()
x86/uaccess: Introduce user_access_{save,restore}()
x86/uaccess, signal: Fix AC=1 bloat
x86/uaccess: Always inline user_access_begin()
x86/uaccess, xen: Suppress SMAP warnings
...