Pull x86 PTI preparatory patches from Thomas Gleixner:
"Todays Advent calendar window contains twentyfour easy to digest
patches. The original plan was to have twenty three matching the date,
but a late fixup made that moot.
- Move the cpu_entry_area mapping out of the fixmap into a separate
address space. That's necessary because the fixmap becomes too big
with NRCPUS=8192 and this caused already subtle and hard to
diagnose failures.
The top most patch is fresh from today and cures a brain slip of
that tall grumpy german greybeard, who ignored the intricacies of
32bit wraparounds.
- Limit the number of CPUs on 32bit to 64. That's insane big already,
but at least it's small enough to prevent address space issues with
the cpu_entry_area map, which have been observed and debugged with
the fixmap code
- A few TLB flush fixes in various places plus documentation which of
the TLB functions should be used for what.
- Rename the SYSENTER stack to CPU_ENTRY_AREA stack as it is used for
more than sysenter now and keeping the name makes backtraces
confusing.
- Prevent LDT inheritance on exec() by moving it to arch_dup_mmap(),
which is only invoked on fork().
- Make vysycall more robust.
- A few fixes and cleanups of the debug_pagetables code. Check
PAGE_PRESENT instead of checking the PTE for 0 and a cleanup of the
C89 initialization of the address hint array which already was out
of sync with the index enums.
- Move the ESPFIX init to a different place to prepare for PTI.
- Several code moves with no functional change to make PTI
integration simpler and header files less convoluted.
- Documentation fixes and clarifications"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
x86/cpu_entry_area: Prevent wraparound in setup_cpu_entry_area_ptes() on 32bit
init: Invoke init_espfix_bsp() from mm_init()
x86/cpu_entry_area: Move it out of the fixmap
x86/cpu_entry_area: Move it to a separate unit
x86/mm: Create asm/invpcid.h
x86/mm: Put MMU to hardware ASID translation in one place
x86/mm: Remove hard-coded ASID limit checks
x86/mm: Move the CR3 construction functions to tlbflush.h
x86/mm: Add comments to clarify which TLB-flush functions are supposed to flush what
x86/mm: Remove superfluous barriers
x86/mm: Use __flush_tlb_one() for kernel memory
x86/microcode: Dont abuse the TLB-flush interface
x86/uv: Use the right TLB-flush API
x86/entry: Rename SYSENTER_stack to CPU_ENTRY_AREA_entry_stack
x86/doc: Remove obvious weirdnesses from the x86 MM layout documentation
x86/mm/64: Improve the memory map documentation
x86/ldt: Prevent LDT inheritance on exec
x86/ldt: Rework locking
arch, mm: Allow arch_dup_mmap() to fail
x86/vsyscall/64: Warn and fail vsyscall emulation in NATIVE mode
...
Put the cpu_entry_area into a separate P4D entry. The fixmap gets too big
and 0-day already hit a case where the fixmap PTEs were cleared by
cleanup_highmap().
Aside of that the fixmap API is a pain as it's all backwards.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
The old docs had the vsyscall range wrong and were missing the fixmap.
Fix both.
There used to be 8 MB reserved for future vsyscalls, but that's long gone.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Laight <David.Laight@aculab.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
A bunch of really small fixes here, all driver specific and mostly in
error handling and remove paths. The most important fixes are for the
a3700 clock configuration and a fix for a nasty stall which could
potentially cause data corruption with the xilinx driver.
-----BEGIN PGP SIGNATURE-----
iQFHBAABCgAxFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAlo6kgoTHGJyb29uaWVA
a2VybmVsLm9yZwAKCRAk1otyXVSH0KGDB/4sweNiUfktOAN1Y86bRmyrTvJctCCY
MAOAzDxvKjUuYEoq0LZWKEt0uIXM5+cB+YrghEn6e5lwdB0rRsifzRQ5D2iR8odf
xhxOW4uV2+RhCDiPWnKP7cOiOxahYPSBw1RNHsAhXlcT11rRQC1QMwpWLE0ET/WG
UreahRO1pwGOCPVCxkfDmv+DxTm3IE0TojT8GvC7QsAD2UapqbLAcCNGN8SoSKD9
8P24pjStItA/6JQVawUIaFLHgcAGHw3WeTf2TQbP6rEF5u5je4BGtELGjSZ72bdS
0RT3CP0eNnLPzh1XqcBGjEPDKWnnglNc0o9XSU3lTNbfgB1cQ2kFQDs/
=ILZY
-----END PGP SIGNATURE-----
Merge tag 'spi-fix-v4.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A bunch of really small fixes here, all driver specific and mostly in
error handling and remove paths.
The most important fixes are for the a3700 clock configuration and a
fix for a nasty stall which could potentially cause data corruption
with the xilinx driver"
* tag 'spi-fix-v4.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: atmel: fixed spin_lock usage inside atmel_spi_remove
spi: sun4i: disable clocks in the remove function
spi: rspi: Do not set SPCR_SPE in qspi_set_config_register()
spi: Fix double "when"
spi: a3700: Fix clk prescaling for coefficient over 15
spi: xilinx: Detect stall with Unknown commands
spi: imx: Update device tree binding documentation
* Fixed bitflip handling in brcmnand and gpmi nand drivers
* Reverted a bad device tree binding for spi-nor
* Fixed a copy&paste error in gpio-nand driver
* Fixed a too strict length check in mtd core
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=OoDq
-----END PGP SIGNATURE-----
Merge tag 'for-linus-20171218' of git://git.infradead.org/linux-mtd
Pull MTD fixes from Richard Weinberger:
"This contains the following regression fixes:
- fix bitflip handling in brcmnand and gpmi nand drivers
- revert a bad device tree binding for spi-nor
- fix a copy&paste error in gpio-nand driver
- fix a too strict length check in mtd core"
* tag 'for-linus-20171218' of git://git.infradead.org/linux-mtd:
mtd: Fix mtd_check_oob_ops()
mtd: nand: gpio: Fix ALE gpio configuration
mtd: nand: brcmnand: Zero bitflip is not an error
mtd: nand: gpmi: Fix failure when a erased page has a bitflip at BBM
Revert "dt-bindings: mtd: add sst25wf040b and en25s64 to sip-nor list"
Pull overlayfs fixes from Miklos Szeredi:
- fix incomplete syncing of filesystem
- fix regression in readdir on ovl over 9p
- only follow redirects when needed
- misc fixes and cleanups
* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: fix overlay: warning prefix
ovl: Use PTR_ERR_OR_ZERO()
ovl: Sync upper dirty data when syncing overlayfs
ovl: update ctx->pos on impure dir iteration
ovl: Pass ovl_get_nlink() parameters in right order
ovl: don't follow redirects if redirect_dir=off
- Fix FPSIMD context switch regression introduced in -rc2
- Fix ABI break with SVE CPUID register reporting
- Fix use of uninitialised variable
- Fixes to hardware access/dirty management and sanity checking
- CPU erratum workaround for Falkor CPUs
- Fix reporting of writeable+executable mappings
- Fix signal reporting for RAS errors
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABCgAGBQJaNAZcAAoJELescNyEwWM0brIH/i69foOwEb5CFE8B6Bwh1yMR
WtiNMiuLeaOoOmAzTLz5ZMi0W087cth+ycgiXuvnMQtzLIAFXK0gWCZ+CLBHgsiz
Q6ba7Li0JbFuSqOyxjxcLMeDRFsD6eVZuoVhBeVi+bjz6Ni44nXF4+TXhep82+Ws
xMfK5S8qjhAwFqFuOlL6Goq1zg5lGVJQjpBHkipiWRpmU8AdY16dsajsvMvbZl0A
4LhIntEo5qx1+6un+8w3xoMt5uzb0BeVseTKCEghDgZ2wE351pwQEEQUam0KVhv4
6b803ccpiBbl3oo4yAbgvXigTW6HBjyKA9e/Xy9SG9gpSFZdUNhBcGoCOnaIF/A=
=kjAU
-----END PGP SIGNATURE-----
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"There are some significant fixes in here for FP state corruption,
hardware access/dirty PTE corruption and an erratum workaround for the
Falkor CPU.
I'm hoping that things finally settle down now, but never say never...
Summary:
- Fix FPSIMD context switch regression introduced in -rc2
- Fix ABI break with SVE CPUID register reporting
- Fix use of uninitialised variable
- Fixes to hardware access/dirty management and sanity checking
- CPU erratum workaround for Falkor CPUs
- Fix reporting of writeable+executable mappings
- Fix signal reporting for RAS errors"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: fpsimd: Fix copying of FP state from signal frame into task struct
arm64/sve: Report SVE to userspace via CPUID only if supported
arm64: fix CONFIG_DEBUG_WX address reporting
arm64: fault: avoid send SIGBUS two times
arm64: hw_breakpoint: Use linux/uaccess.h instead of asm/uaccess.h
arm64: Add software workaround for Falkor erratum 1041
arm64: Define cputype macros for Falkor CPU
arm64: mm: Fix false positives in set_pte_at access/dirty race detection
arm64: mm: Fix pte_mkclean, pte_mkdirty semantics
arm64: Initialise high_memory global variable earlier
Pull locking fixes from Ingo Molnar:
"Misc fixes:
- Fix a S390 boot hang that was caused by the lock-break logic.
Remove lock-break to begin with, as review suggested it was
unreasonably fragile and our confidence in its continued good
health is lower than our confidence in its removal.
- Remove the lockdep cross-release checking code for now, because of
unresolved false positive warnings. This should make lockdep work
well everywhere again.
- Get rid of the final (and single) ACCESS_ONCE() straggler and
remove the API from v4.15.
- Fix a liblockdep build warning"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tools/lib/lockdep: Add missing declaration of 'pr_cont()'
checkpatch: Remove ACCESS_ONCE() warning
compiler.h: Remove ACCESS_ONCE()
tools/include: Remove ACCESS_ONCE()
tools/perf: Convert ACCESS_ONCE() to READ_ONCE()
locking/lockdep: Remove the cross-release locking checks
locking/core: Remove break_lock field when CONFIG_GENERIC_LOCKBREAK=y
locking/core: Fix deadlock during boot on systems with GENERIC_LOCKBREAK
This reverts commit b07815d4ea.
The reverted commit was merged into v4-15-rc1 by mistake: it was taken
from the IMX tree but the patch has never been sent to linux-mtd nor
reviewed by any spi-nor maintainers.
Actually, it would have been rejected since we add new values for the
'compatible' DT property only for SPI NOR memories that don't support
the JEDEC READ ID op code (0x9F).
Both en25s64 and sst25wf040b support the JEDEC READ ID op code, hence
should use the "jedec,spi-nor" string alone as 'compatible' value.
See the following link for more details:
http://lists.infradead.org/pipermail/linux-mtd/2017-November/077425.html
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@wedev4u.fr>
Acked-by: Marek Vasut <marek.vasut@gmail.com>
The ARM architecture defines the memory locations that are permitted
to be accessed as the result of a speculative instruction fetch from
an exception level for which all stages of translation are disabled.
Specifically, the core is permitted to speculatively fetch from the
4KB region containing the current program counter 4K and next 4K.
When translation is changed from enabled to disabled for the running
exception level (SCTLR_ELn[M] changed from a value of 1 to 0), the
Falkor core may errantly speculatively access memory locations outside
of the 4KB region permitted by the architecture. The errant memory
access may lead to one of the following unexpected behaviors.
1) A System Error Interrupt (SEI) being raised by the Falkor core due
to the errant memory access attempting to access a region of memory
that is protected by a slave-side memory protection unit.
2) Unpredictable device behavior due to a speculative read from device
memory. This behavior may only occur if the instruction cache is
disabled prior to or coincident with translation being changed from
enabled to disabled.
The conditions leading to this erratum will not occur when either of the
following occur:
1) A higher exception level disables translation of a lower exception level
(e.g. EL2 changing SCTLR_EL1[M] from a value of 1 to 0).
2) An exception level disabling its stage-1 translation if its stage-2
translation is enabled (e.g. EL1 changing SCTLR_EL1[M] from a value of 1
to 0 when HCR_EL2[VM] has a value of 1).
To avoid the errant behavior, software must execute an ISB immediately
prior to executing the MSR that will change SCTLR_ELn[M] from 1 to 0.
Signed-off-by: Shanker Donthineni <shankerd@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This code (CONFIG_LOCKDEP_CROSSRELEASE=y and CONFIG_LOCKDEP_COMPLETIONS=y),
while it found a number of old bugs initially, was also causing too many
false positives that caused people to disable lockdep - which is arguably
a worse overall outcome.
If we disable cross-release by default but keep the code upstream then
in practice the most likely outcome is that we'll allow the situation
to degrade gradually, by allowing entropy to introduce more and more
false positives, until it overwhelms maintenance capacity.
Another bad side effect was that people were trying to work around
the false positives by uglifying/complicating unrelated code. There's
a marked difference between annotating locking operations and
uglifying good code just due to bad lock debugging code ...
This gradual decrease in quality happened to a number of debugging
facilities in the kernel, and lockdep is pretty complex already,
so we cannot risk this outcome.
Either cross-release checking can be done right with no false positives,
or it should not be included in the upstream kernel.
( Note that it might make sense to maintain it out of tree and go through
the false positives every now and then and see whether new bugs were
introduced. )
Cc: Byungchul Park <byungchul.park@lge.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Pull cgroup fixes from Tejun Heo:
- Prateek posted a couple patches to fix a deadlock involving cpuset
and workqueue. It unfortunately caused a different deadlock and the
recent workqueue hotplug simplification removed the original
deadlock, so Prateek's two patches are reverted for now.
- The new stat code was missing u64_stats initialization. Fixed.
- Doc and other misc changes
* 'for-4.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: add warning about RT not being supported on cgroup2
Revert "cgroup/cpuset: remove circular dependency deadlock"
Revert "cpuset: Make cpuset hotplug synchronous"
cgroup: properly init u64_stats
debug cgroup: use task_css_set instead of rcu_dereference
cpuset: Make cpuset hotplug synchronous
cgroup/cpuset: remove circular dependency deadlock
Overlayfs is following redirects even when redirects are disabled. If this
is unintentional (probably the majority of cases) then this can be a
problem. E.g. upper layer comes from untrusted USB drive, and attacker
crafts a redirect to enable read access to otherwise unreadable
directories.
If "redirect_dir=off", then turn off following as well as creation of
redirects. If "redirect_dir=follow", then turn on following, but turn off
creation of redirects (which is what "redirect_dir=off" does now).
This is a backward incompatible change, so make it dependent on a config
option.
Reported-by: David Howells <dhowells@redhat.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
ARM SoC fixes for this merge window:
- A revert of all SCPI changes from the 4.15 merge window. They had
regressions on the Amlogic platforms, and the submaintainer isn't
around to fix these bugs due to vacation, etc. So we agreed to revert
and revisit in next release cycle.
- A series fixing a number of bugs for ARM CCN interconnect, around
module unload, smp_processor_id() in preemptable context, and fixing
some memory allocation failure checks.
- A handful of devicetree fixes for different platforms, fixing
warnings and errors that were previously ignored by the compiler.
- The usual set of mostly minor fixes for different platforms.
-----BEGIN PGP SIGNATURE-----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=DIHP
-----END PGP SIGNATURE-----
Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
- A revert of all SCPI changes from the 4.15 merge window. They had
regressions on the Amlogic platforms, and the submaintainer isn't
around to fix these bugs due to vacation, etc. So we agreed to revert
and revisit in next release cycle.
- A series fixing a number of bugs for ARM CCN interconnect, around
module unload, smp_processor_id() in preemptable context, and fixing
some memory allocation failure checks.
- A handful of devicetree fixes for different platforms, fixing
warnings and errors that were previously ignored by the compiler.
- The usual set of mostly minor fixes for different platforms.
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits)
ARM64: dts: meson-gx: fix UART pclk clock name
ARM: omap2: hide omap3_save_secure_ram on non-OMAP3 builds
arm: dts: nspire: Add missing #phy-cells to usb-nop-xceiv
ARM: dts: Fix dm814x missing phy-cells property
ARM: dts: Fix elm interrupt compiler warning
bus: arm-ccn: fix module unloading Error: Removing state 147 which has instances left.
bus: arm-cci: Fix use of smp_processor_id() in preemptible context
bus: arm-ccn: Fix use of smp_processor_id() in preemptible context
bus: arm-ccn: Simplify code
bus: arm-ccn: Check memory allocation failure
bus: arm-ccn: constify attribute_group structures.
firmware: arm_scpi: Revert updates made during v4.15 merge window
arm: dts: marvell: Add missing #phy-cells to usb-nop-xceiv
arm64: dts: sort vendor subdirectories in Makefile alphabetically
meson-gx-socinfo: Fix package id parsing
ARM: meson: fix spelling mistake: "Couln't" -> "Couldn't"
ARM: dts: meson: fix the memory region of the GPIO interrupt controller
ARM: dts: meson: correct the sort order for the the gpio_intc node
MAINTAINERS: exclude other Socionext SoC DT files from ARM/UNIPHIER entry
arm64: dts: uniphier: remove unnecessary interrupt-parent
...
ARM:
* A number of issues in the vgic discovered using SMATCH
* A bit one-off calculation in out stage base address mask (32-bit and
64-bit)
* Fixes to single-step debugging instructions that trap for other
reasons such as MMMIO aborts
* Printing unavailable hyp mode as error
* Potential spinlock deadlock in the vgic
* Avoid calling vgic vcpu free more than once
* Broken bit calculation for big endian systems
s390:
* SPDX tags
* Fence storage key accesses from problem state
* Make sure that irq_state.flags is not used in the future
x86:
* Intercept port 0x80 accesses to prevent host instability (CVE)
* Use userspace FPU context for guest FPU (mainly an optimization that
fixes a double use of kernel FPU)
* Do not leak one page per module load
* Flush APIC page address cache from MMU invalidation notifiers
-----BEGIN PGP SIGNATURE-----
iQEcBAABCAAGBQJaLA93AAoJEED/6hsPKofo9msH/2DrqT2FOKfLuxNR2FeUGWr3
lqFoBRUXrVDMINGStnWrV36h/xYzlgJl9jtSDS8dr3VxLqtrNLlDg9NmGeogoZ+k
/xewr/jFYoSRfffsvrbkzORUfvu6zqvJwufiwBEJwAfcswiLqPizdFXcxtUL4eZE
9s9sIweo5zp2Xjg5yLOEkyanePKMEht/81zPkHyM+g0ZMoaPam3qZHA0lLzdyRgd
G9LpSyiMFHguYYgbwipaVue3zgMY1EdmKQ8C2hEPmZd8nVau26YDwRnAwwLrmVkW
sFhGO1Xi18TzQPokzALC25c9v0fqgxL5+fNyFNgWwTc2n9PSwO+IHcy699UH+3A=
=Qcqd
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Radim Krčmář:
"ARM:
- A number of issues in the vgic discovered using SMATCH
- A bit one-off calculation in out stage base address mask (32-bit
and 64-bit)
- Fixes to single-step debugging instructions that trap for other
reasons such as MMMIO aborts
- Printing unavailable hyp mode as error
- Potential spinlock deadlock in the vgic
- Avoid calling vgic vcpu free more than once
- Broken bit calculation for big endian systems
s390:
- SPDX tags
- Fence storage key accesses from problem state
- Make sure that irq_state.flags is not used in the future
x86:
- Intercept port 0x80 accesses to prevent host instability (CVE)
- Use userspace FPU context for guest FPU (mainly an optimization
that fixes a double use of kernel FPU)
- Do not leak one page per module load
- Flush APIC page address cache from MMU invalidation notifiers"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (28 commits)
KVM: x86: fix APIC page invalidation
KVM: s390: Fix skey emulation permission check
KVM: s390: mark irq_state.flags as non-usable
KVM: s390: Remove redundant license text
KVM: s390: add SPDX identifiers to the remaining files
KVM: VMX: fix page leak in hardware_setup()
KVM: VMX: remove I/O port 0x80 bypass on Intel hosts
x86,kvm: remove KVM emulator get_fpu / put_fpu
x86,kvm: move qemu/guest FPU switching out to vcpu_run
KVM: arm/arm64: Fix broken GICH_ELRSR big endian conversion
KVM: arm/arm64: kvm_arch_destroy_vm cleanups
KVM: arm/arm64: Fix spinlock acquisition in vgic_set_owner
kvm: arm: don't treat unavailable HYP mode as an error
KVM: arm/arm64: Avoid attempting to load timer vgic state without a vgic
kvm: arm64: handle single-step of hyp emulated mmio instructions
kvm: arm64: handle single-step during SError exceptions
kvm: arm64: handle single-step of userspace mmio instructions
kvm: arm64: handle single-stepping trapped instructions
KVM: arm/arm64: debug: Introduce helper for single-step
arm: KVM: Fix VTTBR_BADDR_MASK BUG_ON off-by-one
...
-----BEGIN PGP SIGNATURE-----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=xoHW
-----END PGP SIGNATURE-----
Merge tag 'media/v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
"A series of fixes for the media subsytem:
- The largest amount of fixes in this series is with regards to
comments that aren't kernel-doc, but start with "/**".
A new check added for 4.15 makes it to produce a *huge* amount of
new warnings (I'm compiling here with W=1). Most of the patches in
this series fix those.
No code changes - just comment changes at the source files
- rc: some fixed in order to better handle RC repetition codes
- v4l-async: use the v4l2_dev from the root notifier when matching
sub-devices
- v4l2-fwnode: Check subdev count after checking port
- ov 13858 and et8ek8: compilation fix with randconfigs
- usbtv: a trivial new USB ID addition
- dibusb-common: don't do DMA on stack on firmware load
- imx274: Fix error handling, add MAINTAINERS entry
- sir_ir: detect presence of port"
* tag 'media/v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (50 commits)
media: imx274: Fix error handling, add MAINTAINERS entry
media: v4l: async: use the v4l2_dev from the root notifier when matching sub-devices
media: v4l2-fwnode: Check subdev count after checking port
media: et8ek8: select V4L2_FWNODE
media: ov13858: Select V4L2_FWNODE
media: rc: partial revert of "media: rc: per-protocol repeat period"
media: dvb: i2c transfers over usb cannot be done from stack
media: dvb-frontends: complete kernel-doc markups
media: docs: add documentation for frontend attach info
media: dvb_frontends: fix kernel-doc macros
media: drivers: remove "/**" from non-kernel-doc comments
media: lm3560: add a missing kernel-doc parameter
media: rcar_jpu: fix two kernel-doc markups
media: vsp1: add a missing kernel-doc parameter
media: soc_camera: fix a kernel-doc markup
media: mt2063: fix some kernel-doc warnings
media: radio-wl1273: fix a parameter name at kernel-doc macro
media: s3c-camif: add missing description at s3c_camif_find_format()
media: mtk-vpu: add description for wdt fields at struct mtk_vpu
media: vdec: fix some kernel-doc warnings
...
- Fixes from overlay code rework. A trifecta of fixes to the locking,
an out of bounds access, and a memory leak in of_overlay_apply().
- Clean-up at25 eeprom binding document
- Remove leading '0x' in unit-addresses from binding docs
-----BEGIN PGP SIGNATURE-----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=vBBN
-----END PGP SIGNATURE-----
Merge tag 'devicetree-fixes-for-4.15-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree fixes from Rob Herring:
"Another set of DT fixes:
- Fixes from overlay code rework. A trifecta of fixes to the locking,
an out of bounds access, and a memory leak in of_overlay_apply()
- Clean-up at25 eeprom binding document
- Remove leading '0x' in unit-addresses from binding docs"
* tag 'devicetree-fixes-for-4.15-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: overlay: Make node skipping in init_overlay_changeset() clearer
of: overlay: Fix out-of-bounds write in init_overlay_changeset()
of: overlay: Fix (un)locking in of_overlay_apply()
of: overlay: Fix memory leak in of_overlay_apply() error path
dt-bindings: eeprom: at25: Document device-specific compatible values
dt-bindings: eeprom: at25: Grammar s/are can/can/
dt-bindings: Remove leading 0x from bindings notation
of: overlay: Remove else after goto
of: Spelling s/changset/changeset/
of: unittest: Remove bogus overlay mutex release from overlay_data_add()
Document the recommended presence of a device-specific compatible value,
and list examples that are already in use or soon will be.
This will allow checkpatch to validate compatible values in DTS.
Update the example to match current best practices (generic node name,
specific compatible value first).
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rob Herring <robh@kernel.org>
Improve the binding example by removing all the leading 0x to fix the
following dtc warnings:
Warning (unit_address_format): Node /XXX unit name should not have leading "0x"
Converted using the following command:
find Documentation/devicetree/bindings -name "*.txt" -exec sed -i -e 's/([^ ])\@0x([0-9a-f])/$1\@$2/g' {} +
This is a follow up to commit 48c926cd34
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Rob Herring <robh@kernel.org>
- SPDX tags
- Fence storage key accesses from problem state
- Make sure that irq_state.flags is not used in the future
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=uodY
-----END PGP SIGNATURE-----
Merge tag 'kvm-s390-master-4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux
KVM: s390: Fixes for 4.15
- SPDX tags
- Fence storage key accesses from problem state
- Make sure that irq_state.flags is not used in the future
Old kernels did not check for zero in the irq_state.flags field and old
QEMUs did not zero the flag/reserved fields when calling
KVM_S390_*_IRQ_STATE. Let's add comments to prevent future uses of
these fields.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
We haven't yet figured out what to do with RT threads on cgroup2.
Document the limitation.
v2: Included the warning about system management software behavior as
suggested by Michael.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>
- Fix a crash in the 74x164 driver
- Fix IRQ banks in the DaVinci driver
- Fix the vendor prefix in the PCA953x driver
-----BEGIN PGP SIGNATURE-----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=B3ae
-----END PGP SIGNATURE-----
Merge tag 'gpio-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Three small fixes for GPIO. Not much, I'm surprised by the silence in
my subsystems. All driver fixes:
- fix a crash in the 74x164 driver
- fix IRQ banks in the DaVinci driver
- fix the vendor prefix in the PCA953x driver"
* tag 'gpio-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: pca953x: fix vendor prefix for PCA9654
gpio: davinci: Assign first bank regs for unbanked case
gpio: 74x164: Fix crash during .remove()
a problem with the new warning mode: it can break the build when confronted
with a source file containing malformed kerneldoc comments.
-----BEGIN PGP SIGNATURE-----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=ZKWF
-----END PGP SIGNATURE-----
Merge tag 'docs-4.15-fixes' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
"A handful of documentation fixes.
The most significant of these addresses a problem with the new warning
mode: it can break the build when confronted with a source file
containing malformed kerneldoc comments"
* tag 'docs-4.15-fixes' of git://git.lwn.net/linux:
Documentation: fix docs build error after source file removed
scsi: documentation: Fix case of 'scsi_device' struct mention(s)
genericirq.rst: Remove :c:func:`...` in code blocks
dmaengine: doc : Fix warning "Title underline too short" while make xmldocs
scripts/kernel-doc: Don't fail with status != 0 if error encountered with -none
The pci/htirq.c file was removed so remove it from the documentation
file also.
Error: Cannot open file ../drivers/pci/htirq.c
WARNING: kernel-doc '../scripts/kernel-doc -rst -enable-lineno -export ../drivers/pci/htirq.c' failed with return code 2
Fixes: fd2fa6c18b ("x86/PCI: Remove unused HyperTransport interrupt support")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Drop reference to obsolete maintainer tree
Fix overflow bug in pmbus driver
Fix SMBUS timeout problem in jc42 driver
For the SMBUS timeout handling, we had a brief discussion if this should
be considered a bug fix or a feature. Peter says "it fixes real problems
where the application misbehave due to faulty content when reading from
an eeprom", and he needs the patch in his company's v4.14 images. This is
good enough for me and warrants backport to stable kernels.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=5rYP
-----END PGP SIGNATURE-----
Merge tag 'hwmon-for-linus-v4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
"Fixes:
- Drop reference to obsolete maintainer tree
- Fix overflow bug in pmbus driver
- Fix SMBUS timeout problem in jc42 driver
For the SMBUS timeout handling, we had a brief discussion if this
should be considered a bug fix or a feature. Peter says "it fixes real
problems where the application misbehave due to faulty content when
reading from an eeprom", and he needs the patch in his company's v4.14
images. This is good enough for me and warrants backport to stable
kernels"
* tag 'hwmon-for-linus-v4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (jc42) optionally try to disable the SMBUS timeout
hwmon: (pmbus) Use 64bit math for DIRECT format values
hwmon: Drop reference to Jean's tree
Despite commit 55020c8056 ("of: Add vendor prefix for ON Semiconductor
Corp.") was made long ago, the latter commit 9f49f6dd04 ("gpio: pca953x:
add onsemi,pca9654 id") made use of another, undocumented vendor prefix.
Since such prefix doesn't seem to be used in any device trees, I think we
can just fix the "compatible" string in the driver and the bindings and be
done with that...
Fixes: 9f49f6dd04 ("gpio: pca953x: add onsemi,pca9654 id")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
In scsi_mid_low_api.txt a the scsi_device structure is mentioned
several times, but the leading 's' is uppercase (Scsi_device)
and should be lowercase (scsi_device). Fixed by this commit.
Signed-off-by: John Pittman <jpittman@redhat.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
In code blocks, :c:func:`...` annotations don't result in
cross-references. Instead, they are rendered verbatim. Remove these
broken annotations, and mark function calls with parentheses() again.
Fixes: 76d40fae13 ("genericirq.rst: add cross-reference links and use monospaced fonts")
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This patch fix following warning during 'make xmldocs'
Documentation/driver-api/dmaengine/client.rst:188:
WARNING: Title underline too short.
Further APIs:
------------
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
With a nxp,se97 chip on an atmel sama5d31 board, the I2C adapter driver
is not always capable of avoiding the 25-35 ms timeout as specified by
the SMBUS protocol. This may cause silent corruption of the last bit of
any transfer, e.g. a one is read instead of a zero if the sensor chip
times out. This also affects the eeprom half of the nxp-se97 chip, where
this silent corruption was originally noticed. Other I2C adapters probably
suffer similar issues, e.g. bit-banging comes to mind as risky...
The SMBUS register in the nxp chip is not a standard Jedec register, but
it is not special to the nxp chips either, at least the atmel chips
have the same mechanism. Therefore, do not special case this on the
manufacturer, it is opt-in via the device property anyway.
Cc: stable@vger.kernel.org # 4.9+
Signed-off-by: Peter Rosin <peda@axentia.se>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add to the media book the attachment kAPI for the DVB
frontend drivers that have already some kernel-doc markup.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Mergr misc fixes from Andrew Morton:
"28 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (28 commits)
fs/hugetlbfs/inode.c: change put_page/unlock_page order in hugetlbfs_fallocate()
mm/hugetlb: fix NULL-pointer dereference on 5-level paging machine
autofs: revert "autofs: fix AT_NO_AUTOMOUNT not being honored"
autofs: revert "autofs: take more care to not update last_used on path walk"
fs/fat/inode.c: fix sb_rdonly() change
mm, memcg: fix mem_cgroup_swapout() for THPs
mm: migrate: fix an incorrect call of prep_transhuge_page()
kmemleak: add scheduling point to kmemleak_scan()
scripts/bloat-o-meter: don't fail with division by 0
fs/mbcache.c: make count_objects() more robust
Revert "mm/page-writeback.c: print a warning if the vm dirtiness settings are illogical"
mm/madvise.c: fix madvise() infinite loop under special circumstances
exec: avoid RLIMIT_STACK races with prlimit()
IB/core: disable memory registration of filesystem-dax vmas
v4l2: disable filesystem-dax mapping support
mm: fail get_vaddr_frames() for filesystem-dax mappings
mm: introduce get_user_pages_longterm
device-dax: implement ->split() to catch invalid munmap attempts
mm, hugetlbfs: introduce ->split() to vm_operations_struct
scripts/faddr2line: extend usage on generic arch
...
This reverts commit 0f6d24f878 ("mm/page-writeback.c: print a warning
if the vm dirtiness settings are illogical") because it causes false
positive warnings during OOM situations as noticed by Tetsuo Handa:
Node 0 active_anon:3525940kB inactive_anon:8372kB active_file:216kB inactive_file:1872kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:2504kB dirty:52kB writeback:0kB shmem:8660kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 636928kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Node 0 DMA free:14848kB min:284kB low:352kB high:420kB active_anon:992kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15988kB managed:15904kB mlocked:0kB kernel_stack:0kB pagetables:24kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 2687 3645 3645
Node 0 DMA32 free:53004kB min:49608kB low:62008kB high:74408kB active_anon:2712648kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129216kB managed:2773132kB mlocked:0kB kernel_stack:96kB pagetables:5096kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 958 958
Node 0 Normal free:17140kB min:17684kB low:22104kB high:26524kB active_anon:812300kB inactive_anon:8372kB active_file:1228kB inactive_file:1868kB unevictable:0kB writepending:52kB present:1048576kB managed:981224kB mlocked:0kB kernel_stack:3520kB pagetables:8552kB bounce:0kB free_pcp:120kB local_pcp:120kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
[...]
Out of memory: Kill process 8459 (a.out) score 999 or sacrifice child
Killed process 8459 (a.out) total-vm:4180kB, anon-rss:88kB, file-rss:0kB, shmem-rss:0kB
oom_reaper: reaped process 8459 (a.out), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
vm direct limit must be set greater than background limit.
The problem is that both thresh and bg_thresh will be 0 if
available_memory is less than 4 pages when evaluating
global_dirtyable_memory.
While this might be worked around the whole point of the warning is
dubious at best. We do rely on admins to do sensible things when
changing tunable knobs. Dirty memory writeback knobs are not any
special in that regards so revert the warning rather than adding more
hacks to work this around.
Debugged by Yafang Shao.
Link: http://lkml.kernel.org/r/20171127091939.tahb77nznytcxw55@dhcp22.suse.cz
Fixes: 0f6d24f878 ("mm/page-writeback.c: print a warning if the vm dirtiness settings are illogical")
Signed-off-by: Michal Hocko <mhocko@suse.com>
Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Yafang Shao <laoar.shao@gmail.com>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
printk specifier %p now hashes all addresses before printing. Sometimes
we need to see the actual unmodified address. This can be achieved using
%lx but then we face the risk that if in future we want to change the
way the Kernel handles printing of pointers we will have to grep through
the already existent 50 000 %lx call sites. Let's add specifier %px as a
clear, opt-in, way to print a pointer and maintain some level of
isolation from all the other hex integer output within the Kernel.
Add printk specifier %px to print the actual unmodified address.
Signed-off-by: Tobin C. Harding <me@tobin.cc>
Currently there exist approximately 14 000 places in the kernel where
addresses are being printed using an unadorned %p. This potentially
leaks sensitive information regarding the Kernel layout in memory. Many
of these calls are stale, instead of fixing every call lets hash the
address by default before printing. This will of course break some
users, forcing code printing needed addresses to be updated.
Code that _really_ needs the address will soon be able to use the new
printk specifier %px to print the address.
For what it's worth, usage of unadorned %p can be broken down as
follows (thanks to Joe Perches).
$ git grep -E '%p[^A-Za-z0-9]' | cut -f1 -d"/" | sort | uniq -c
1084 arch
20 block
10 crypto
32 Documentation
8121 drivers
1221 fs
143 include
101 kernel
69 lib
100 mm
1510 net
40 samples
7 scripts
11 security
166 sound
152 tools
2 virt
Add function ptr_to_id() to map an address to a 32 bit unique
identifier. Hash any unadorned usage of specifier %p and any malformed
specifiers.
Signed-off-by: Tobin C. Harding <me@tobin.cc>
Current documentation indicates that %pK prints a leading '0x'. This is
not the case.
Correct documentation for printk specifier %pK.
Signed-off-by: Tobin C. Harding <me@tobin.cc>
Pull misc x86 fixes from Ingo Molnar:
- topology enumeration fixes
- KASAN fix
- two entry fixes (not yet the big series related to KASLR)
- remove obsolete code
- instruction decoder fix
- better /dev/mem sanity checks, hopefully working better this time
- pkeys fixes
- two ACPI fixes
- 5-level paging related fixes
- UMIP fixes that should make application visible faults more debuggable
- boot fix for weird virtualization environment
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
x86/decoder: Add new TEST instruction pattern
x86/PCI: Remove unused HyperTransport interrupt support
x86/umip: Fix insn_get_code_seg_params()'s return value
x86/boot/KASLR: Remove unused variable
x86/entry/64: Add missing irqflags tracing to native_load_gs_index()
x86/mm/kasan: Don't use vmemmap_populate() to initialize shadow
x86/entry/64: Fix entry_SYSCALL_64_after_hwframe() IRQ tracing
x86/pkeys/selftests: Fix protection keys write() warning
x86/pkeys/selftests: Rename 'si_pkey' to 'siginfo_pkey'
x86/mpx/selftests: Fix up weird arrays
x86/pkeys: Update documentation about availability
x86/umip: Print a warning into the syslog if UMIP-protected instructions are used
x86/smpboot: Fix __max_logical_packages estimate
x86/topology: Avoid wasting 128k for package id array
perf/x86/intel/uncore: Cache logical pkg id in uncore driver
x86/acpi: Reduce code duplication in mp_override_legacy_irq()
x86/acpi: Handle SCI interrupts above legacy space gracefully
x86/boot: Fix boot failure when SMP MP-table is based at 0
x86/mm: Limit mmap() of /dev/mem to valid physical addresses
x86/selftests: Add test for mapping placement for 5-level paging
...
Pull scheduler fixes from Ingo Molnar:
"Misc fixes: a documentation fix, a Sparse warning fix and a debugging
fix"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/debug: Fix task state recording/printout
sched/deadline: Don't use dubious signed bitfields
sched/deadline: Fix the description of runtime accounting in the documentation
Pull timer updates from Thomas Gleixner:
- The final conversion of timer wheel timers to timer_setup().
A few manual conversions and a large coccinelle assisted sweep and
the removal of the old initialization mechanisms and the related
code.
- Remove the now unused VSYSCALL update code
- Fix permissions of /proc/timer_list. I still need to get rid of that
file completely
- Rename a misnomed clocksource function and remove a stale declaration
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
m68k/macboing: Fix missed timer callback assignment
treewide: Remove TIMER_FUNC_TYPE and TIMER_DATA_TYPE casts
timer: Remove redundant __setup_timer*() macros
timer: Pass function down to initialization routines
timer: Remove unused data arguments from macros
timer: Switch callback prototype to take struct timer_list * argument
timer: Pass timer_list pointer to callbacks unconditionally
Coccinelle: Remove setup_timer.cocci
timer: Remove setup_*timer() interface
timer: Remove init_timer() interface
treewide: setup_timer() -> timer_setup() (2 field)
treewide: setup_timer() -> timer_setup()
treewide: init_timer() -> setup_timer()
treewide: Switch DEFINE_TIMER callbacks to struct timer_list *
s390: cmm: Convert timers to use timer_setup()
lightnvm: Convert timers to use timer_setup()
drivers/net: cris: Convert timers to use timer_setup()
drm/vc4: Convert timers to use timer_setup()
block/laptop_mode: Convert timers to use timer_setup()
net/atm/mpc: Avoid open-coded assignment of timer callback function
...
- Use pwd instead of /bin/pwd for portability
- Clean up Makefiles
- Fix ld-option for clang
- Fix malloc'ed data size in Kconfig
- Fix parallel building along with coccicheck
- Fix a minor issue of package building
- Prompt to use "rpm-pkg" instead of "rpm"
- Clean up *.i and *.lst patterns by "make clean"
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQIcBAABAgAGBQJaGEuYAAoJED2LAQed4NsG1H8P/1cKSZk7G9tA1L7DndvoTNLz
oc+wM7dUQ3NBndBsyymGe3/cvmlPoB6tam5otAyHaDjBsiGL6pQAeCi1RjJ24aMO
BHb3vUWLh7GiGnIpe9uMNYIghuRpHdK53rkh9uPaKXmLZBSHtOdd81wHlZGsUdyY
6U2HHUM6c6KiueTYuULiP2wXE6u0YhREjb5MUL6SThAoME0tDaf7JnWguo7sKJAv
CUlw9196LoDtj/2VRN3Rd9baGefqDw05PYqUZ9RWfCcl/h8gm7Xo9jW8THRLTIj5
hRbqNRDHEBjN0QY1FFghrfQf8Iud7zyZC2bzD+0PeUHtIMsb2zA+0zNzdOLN8y9f
VC34LcQjpG4k9jgrRabAt5xJKcKPLA3rBfkZdB36NKnyj0EFndGoR5YaYsINFBrd
Asg58Es6OQVINvLdinInpp2GAZAz30zNuF1VivjKgDIUpMw1yU7x5h+Sea3+b5n2
hO439hlQj4Hb5yNrKeDVaOUJ8eY4yIUtGAUm1vFXODdC4y5FcH7aNf5GiY5bxC7n
warleTm/DxCV9CI2MANOJmJgC2XgdE7/JNMNvWQnjcmOvhFywyYE65c26QMLIQSM
k2L0b26FtlES3aCUUKaAmBvAGEZznturBg0fmpnuIULHvYWf2aLndzWDv6C5LhiQ
mC3FAJc1rzDfQR7UsPrs
=a2Td
-----END PGP SIGNATURE-----
Merge tag 'kbuild-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild updates from Masahiro Yamada:
- use 'pwd' instead of '/bin/pwd' for portability
- clean up Makefiles
- fix ld-option for clang
- fix malloc'ed data size in Kconfig
- fix parallel building along with coccicheck
- fix a minor issue of package building
- prompt to use "rpm-pkg" instead of "rpm"
- clean up *.i and *.lst patterns by "make clean"
* tag 'kbuild-v4.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: drop $(extra-y) from real-objs-y
kbuild: clean up *.i and *.lst patterns by make clean
kbuild: rpm: prompt to use "rpm-pkg" if "rpm" target is used
kbuild: pkg: use --transform option to prefix paths in tar
coccinelle: fix parallel build with CHECK=scripts/coccicheck
kconfig/symbol.c: use correct pointer type argument for sizeof
kbuild: Set KBUILD_CFLAGS before incl. arch Makefile
kbuild: remove all dummy assignments to obj-
kbuild: create built-in.o automatically if parent directory wants it
kbuild: /bin/pwd -> pwd
* GICv4 Support for KVM/ARM
All ARM patches were in next-20171113. I have postponed most x86 fixes
to 4.15-rc2 and UMIP to 4.16, but there are fixes that would be good to
have already in 4.15-rc1:
* re-introduce support for CPUs without virtual NMI (cc stable)
and allow testing of KVM without virtual NMI on available CPUs
* fix long-standing performance issues with assigned devices on AMD
(cc stable)
-----BEGIN PGP SIGNATURE-----
iQEcBAABCAAGBQJaGECGAAoJEED/6hsPKofoT08H/AuaMi8qprw2BNpVBbQxWRWM
O4WPk7yz1zB4SkdRNrPzCMBy+qoK7FcV/3BpsFPuQS4NHQ+GvQ87N/7tUbouVyl6
CuPGJMCnNzMQ8GvLOJgB1/sz+uW5W/ph3y8kv1UP3/hNCZU4fqukoUeLroOH/wr6
N3bSY8bok7ycdpgybHmbUHY0Yk4IUk3m0RXWY9U5Jl3sjoNEwCw3pWdrq9Swfs/6
W8QJRdE4Z6KHPqW5sRnPj24IpoUpCxu+IT+gPuGlDUCN/h3sfhYvMS6GgDrCjiiZ
2z1TwaIAo+wGjlBQzGmyTUjUPjbGew+f3ixBlf2BtmNutX+tX2qsVfl1NKXYTto=
=GGge
-----END PGP SIGNATURE-----
Merge tag 'kvm-4.15-2' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Radim Krčmář:
"Trimmed second batch of KVM changes for Linux 4.15:
- GICv4 Support for KVM/ARM
- re-introduce support for CPUs without virtual NMI (cc stable) and
allow testing of KVM without virtual NMI on available CPUs
- fix long-standing performance issues with assigned devices on AMD
(cc stable)"
* tag 'kvm-4.15-2' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (30 commits)
kvm: vmx: Allow disabling virtual NMI support
kvm: vmx: Reinstate support for CPUs without virtual NMI
KVM: SVM: obey guest PAT
KVM: arm/arm64: Don't queue VLPIs on INV/INVALL
KVM: arm/arm64: Fix GICv4 ITS initialization issues
KVM: arm/arm64: GICv4: Theory of operations
KVM: arm/arm64: GICv4: Enable VLPI support
KVM: arm/arm64: GICv4: Prevent userspace from changing doorbell affinity
KVM: arm/arm64: GICv4: Prevent a VM using GICv4 from being saved
KVM: arm/arm64: GICv4: Enable virtual cpuif if VLPIs can be delivered
KVM: arm/arm64: GICv4: Hook vPE scheduling into vgic flush/sync
KVM: arm/arm64: GICv4: Use the doorbell interrupt as an unblocking source
KVM: arm/arm64: GICv4: Add doorbell interrupt handling
KVM: arm/arm64: GICv4: Use pending_last as a scheduling hint
KVM: arm/arm64: GICv4: Handle INVALL applied to a vPE
KVM: arm/arm64: GICv4: Propagate property updates to VLPIs
KVM: arm/arm64: GICv4: Handle MOVALL applied to a vPE
KVM: arm/arm64: GICv4: Handle CLEAR applied to a VLPI
KVM: arm/arm64: GICv4: Propagate affinity changes to the physical ITS
KVM: arm/arm64: GICv4: Unmap VLPI when freeing an LPI
...
-----BEGIN PGP SIGNATURE-----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=P4O6
-----END PGP SIGNATURE-----
Merge tag 'drm-for-v4.15-part2' of git://people.freedesktop.org/~airlied/linux
Pull more drm updates from Dave Airlie:
"Fixes/cleanups for rc1, non-desktop flags for VR
- remove the MSM dt-bindings file Rob managed to push in the previous
pull.
- add a property/edid quirk to denote HMD devices, I had these
hanging around for a few weeks and Keith had done some work on
them, they are fairly self contained and small, and only affect
people using HTC Vive VR headsets so far.
- amdgpu, tegra, tilcdc, fsl fixes
- some imx-drm cleanups I missed, these seemed pretty small, and no
reason to hold off.
I have one TTM regression fix (fixes bochs-vga in qemu) sitting
locally awaiting review I'll probably send that in a separate pull
request tomorrow"
* tag 'drm-for-v4.15-part2' of git://people.freedesktop.org/~airlied/linux: (33 commits)
dt-bindings: remove file that was added accidentally
drm/edid: quirk HTC vive headset as non-desktop. [v2]
drm/fb: add support for not enabling fbcon on non-desktop displays [v2]
drm: add connector info/property for non-desktop displays [v2]
drm/amdgpu: fix rmmod KCQ disable failed error
drm/amdgpu: fix kernel hang when starting VNC server
drm/amdgpu: don't skip attributes when powerplay is enabled
drm/amd/pp: fix typecast error in powerplay.
drm/tilcdc: Remove obsolete "ti,tilcdc,slave" dts binding support
drm/tegra: sor: Reimplement pad clock
Revert "drm/radeon: dont switch vt on suspend"
drm/amd/amdgpu: fix over-bound accessing in amdgpu_cs_wait_any_fence
drm/amd/powerplay: fix unfreeze level smc message for smu7
drm/amdgpu:fix memleak
drm/amdgpu:fix memleak in takedown
drm/amd/pp: fix dpm randomly failed on Vega10
drm/amdgpu: set f_mapping on exported DMA-bufs
drm/amdgpu: Properly allocate VM invalidate eng v2
drm/fsl-dcu: enable IRQ before drm_atomic_helper_resume()
drm/fsl-dcu: avoid disabling pixel clock twice on suspend
...
a new "Co-Developed-by" tag described by Greg, and a build enhancement from
Willy to generate docs warnings during a kernel build (but only when
additional warnings have been requested in general).
-----BEGIN PGP SIGNATURE-----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=ydAe
-----END PGP SIGNATURE-----
Merge tag 'docs-4.15-2' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"A few late-arriving docs updates that have no real reason to wait.
There's a new "Co-Developed-by" tag described by Greg, and a build
enhancement from Willy to generate docs warnings during a kernel build
(but only when additional warnings have been requested in general)"
* tag 'docs-4.15-2' of git://git.lwn.net/linux:
Add optional check for bad kernel-doc comments
Documentation: fix profile= options in kernel-parameters.txt
documentation/svga.txt: update outdated file
kokr/memory-barriers.txt: Fix typo in paring example
kokr/memory-barriers/txt: Replace uses of "transitive"
Documentation/process: add Co-Developed-by: tag for patches with multiple authors
