int128: move __uint128_t compiler test to Kconfig

In order to use 128-bit integer arithmetic in C code, the architecture
needs to have declared support for it by setting ARCH_SUPPORTS_INT128,
and it

int128: move __uint128_t compiler test to Kconfig

In order to use 128-bit integer arithmetic in C code, the architecture
needs to have declared support for it by setting ARCH_SUPPORTS_INT128,
and it requires a version of the toolchain that supports this at build
time. This is why all existing tests for ARCH_SUPPORTS_INT128 also test
whether __SIZEOF_INT128__ is defined, since this is only the case for
compilers that can support 128-bit integers.

Let's fold this additional test into the Kconfig declaration of
ARCH_SUPPORTS_INT128 so that we can also use the symbol in Makefiles,
e.g., to decide whether a certain object needs to be included in the
first place.

Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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ubsan, x86: Annotate and allow __ubsan_handle_shift_out_of_bounds() in uaccess regions

The new check_zeroed_user() function uses variable shifts inside of a
user_access_begin()/user_access_end() sec

ubsan, x86: Annotate and allow __ubsan_handle_shift_out_of_bounds() in uaccess regions

The new check_zeroed_user() function uses variable shifts inside of a
user_access_begin()/user_access_end() section and that results in GCC
emitting __ubsan_handle_shift_out_of_bounds() calls, even though
through value range analysis it would be able to see that the UB in
question is impossible.

Annotate and whitelist this UBSAN function; continued use of
user_access_begin()/user_access_end() will undoubtedly result in
further uses of function.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: cyphar@cyphar.com
Cc: keescook@chromium.org
Cc: linux@rasmusvillemoes.dk
Fixes: f5a1a536fa14 ("lib: introduce copy_struct_from_user() helper")
Link: https://lkml.kernel.org/r/20191021131149.GA19358@hirez.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>

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Merge remote-tracking branch 'remotes/powerpc/topic/ppc-kvm' into kvm-ppc-next

This merges in fixes for the XIVE interrupt controller which touch both
generic powerpc and PPC KVM code. To avoid mer

Merge remote-tracking branch 'remotes/powerpc/topic/ppc-kvm' into kvm-ppc-next

This merges in fixes for the XIVE interrupt controller which touch both
generic powerpc and PPC KVM code. To avoid merge conflicts, these
commits will go upstream via the powerpc tree as well as the KVM tree.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>

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Merge branch 'ti-sysc-fixes' into fixes

Merge tag 'efi-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi into efi/urgent

Pull a single EFI fix for v5.3 from Ard:

- Fix mixed mode breakage in EFI config table handling for

Merge tag 'efi-urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi into efi/urgent

Pull a single EFI fix for v5.3 from Ard:

- Fix mixed mode breakage in EFI config table handling for TPM.

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Merge tag 'v5.3-rc3' into drm-next-5.4

Linux 5.3-rc3

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Merge drm/drm-next into drm-intel-next-queued

Catching up with 5.3-rc*

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

Merge tag 'v5.3-rc1' into regulator-5.3

Linus 5.3-rc1

Merge tag 'v5.3-rc1' into docs-next

Pull in all of the massive docs changes from elsewhere.

Merge v5.3-rc1 into drm-misc-next

Noralf needs some SPI patches in 5.3 to merge some work on tinydrm.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>

Merge tag 'v5.3-rc1' into patchwork

Linus 5.3-rc1

* tag 'v5.3-rc1': (12816 commits)
Linus 5.3-rc1
iommu/amd: fix a crash in iova_magazine_free_pfns
hexagon: switch to generic version of pte a

Merge tag 'v5.3-rc1' into patchwork

Linus 5.3-rc1

* tag 'v5.3-rc1': (12816 commits)
Linus 5.3-rc1
iommu/amd: fix a crash in iova_magazine_free_pfns
hexagon: switch to generic version of pte allocation
typo fix: it's d_make_root, not d_make_inode...
dt-bindings: pinctrl: stm32: Fix missing 'clocks' property in examples
dt-bindings: iio: ad7124: Fix dtc warnings in example
dt-bindings: iio: avia-hx711: Fix avdd-supply typo in example
dt-bindings: pinctrl: aspeed: Fix AST2500 example errors
dt-bindings: pinctrl: aspeed: Fix 'compatible' schema errors
dt-bindings: riscv: Limit cpus schema to only check RiscV 'cpu' nodes
dt-bindings: Ensure child nodes are of type 'object'
x86/entry/64: Prevent clobbering of saved CR2 value
smp: Warn on function calls from softirq context
KVM: x86: Add fixed counters to PMU filter
KVM: nVMX: do not use dangling shadow VMCS after guest reset
KVM: VMX: dump VMCS on failed entry
KVM: x86/vPMU: refine kvm_pmu err msg when event creation failed
KVM: s390: Use kvm_vcpu_wake_up in kvm_s390_vcpu_wakeup
KVM: Boost vCPUs that are delivering interrupts
KVM: selftests: Remove superfluous define from vmx.c
...

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Merge branch 'next' into for-linus

Prepare second round of input updates for 5.3 merge window.

Merge tag 'v5.2' into next

Sync up with mainline to resolve conflicts in iforce driver.

Merge tag 'kvm-arm-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm updates for 5.3

- Add support for chained PMU counters in guests
- Improve SError handli

Merge tag 'kvm-arm-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm updates for 5.3

- Add support for chained PMU counters in guests
- Improve SError handling
- Handle Neoverse N1 erratum #1349291
- Allow side-channel mitigation status to be migrated
- Standardise most AArch64 system register accesses to msr_s/mrs_s
- Fix host MPIDR corruption on 32bit

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Merge branches 'for-5.2/fixes', 'for-5.3/doc', 'for-5.3/ish', 'for-5.3/logitech' and 'for-5.3/wacom' into for-linus

Merge tag 'asoc-v5.3' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v5.3

This is a very big update, mainly thanks to Morimoto-san's refactoring
w

Merge tag 'asoc-v5.3' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v5.3

This is a very big update, mainly thanks to Morimoto-san's refactoring
work and some fairly large new drivers.

- Lots more work on moving towards a component based framework from
Morimoto-san.
- Support for force disconnecting muxes from Jerome Brunet.
- New drivers for Cirrus Logic CS47L35, CS47L85 and CS47L90, Conexant
CX2072X, Realtek RT1011 and RT1308.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

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Merge branches 'x86/vt-d', 'x86/amd', 'arm/smmu', 'arm/omap', 'generic-dma-ops' and 'core' into next

Merge branch 'timers/vdso' into timers/core

so the hyper-v clocksource update can be applied.

Merge tag 'davinci-fixes-for-v5.2-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into arm/fixes

This set of patches fixes regressions introduced in v5.2 kernel when DA

Merge tag 'davinci-fixes-for-v5.2-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci into arm/fixes

This set of patches fixes regressions introduced in v5.2 kernel when DA8xx
OHCI driver was converted over to use GPIO regulators.

* tag 'davinci-fixes-for-v5.2-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci:
ARM: davinci: da830-evm: fix GPIO lookup for OHCI
ARM: davinci: omapl138-hawk: add missing regulator constraints for OHCI
ARM: davinci: da830-evm: add missing regulator constraints for OHCI
+ Linux 5.2-rc7

Signed-off-by: Olof Johansson <olof@lixom.net>

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Merge tag 'v5.2-rc7' into rdma.git hmm

Required for dependencies in the next patches.

Merge tag 'v5.2-rc6' into for-5.3/block

Merge 5.2-rc6 into for-5.3/block, so we get the same page merge leak
fix. Otherwise we end up having conflicts with future patches between
for-5.3/block and m

Merge tag 'v5.2-rc6' into for-5.3/block

Merge 5.2-rc6 into for-5.3/block, so we get the same page merge leak
fix. Otherwise we end up having conflicts with future patches between
for-5.3/block and master that touch this area. In particular, it makes
the bio_full() fix hard to backport to stable.

* tag 'v5.2-rc6': (482 commits)
Linux 5.2-rc6
Revert "iommu/vt-d: Fix lock inversion between iommu->lock and device_domain_lock"
Bluetooth: Fix regression with minimum encryption key size alignment
tcp: refine memory limit test in tcp_fragment()
x86/vdso: Prevent segfaults due to hoisted vclock reads
SUNRPC: Fix a credential refcount leak
Revert "SUNRPC: Declare RPC timers as TIMER_DEFERRABLE"
net :sunrpc :clnt :Fix xps refcount imbalance on the error path
NFS4: Only set creation opendata if O_CREAT
ARM: 8867/1: vdso: pass --be8 to linker if necessary
KVM: nVMX: reorganize initial steps of vmx_set_nested_state
KVM: PPC: Book3S HV: Invalidate ERAT when flushing guest TLB entries
habanalabs: use u64_to_user_ptr() for reading user pointers
nfsd: replace Jeff by Chuck as nfsd co-maintainer
inet: clear num_timeout reqsk_alloc()
PCI/P2PDMA: Ignore root complex whitelist when an IOMMU is present
net: mvpp2: debugfs: Add pmap to fs dump
ipv6: Default fib6_type to RTN_UNICAST when not set
net: hns3: Fix inconsistent indenting
net/af_iucv: always register net_device notifier
...

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Merge tag 'v5.2-rc6' into rdma.git for-next

For dependencies in next patches.

Resolve conflicts:
- Use uverbs_get_cleared_udata() with new cq allocation flow
- Continue to delete nes despite SPDX c

Merge tag 'v5.2-rc6' into rdma.git for-next

For dependencies in next patches.

Resolve conflicts:
- Use uverbs_get_cleared_udata() with new cq allocation flow
- Continue to delete nes despite SPDX conflict
- Resolve list appends in mlx5_command_str()
- Use u16 for vport_rule stuff
- Resolve list appends in struct ib_client

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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Merge tag 'v5.2-rc6' into asoc-5.3

Linux 5.2-rc6

Merge remote-tracking branch 'drm/drm-next' into drm-misc-next-fixes

Some fixes have been accidentally pushed to this, so I cannot fost-forward.
Required to pull in the remove-fbcon-notifiers fixes.

Merge remote-tracking branch 'drm/drm-next' into drm-misc-next-fixes

Some fixes have been accidentally pushed to this, so I cannot fost-forward.
Required to pull in the remove-fbcon-notifiers fixes.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

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Merge tag 'v5.2-rc6' into x86/asm, to refresh the branch

Signed-off-by: Ingo Molnar <mingo@kernel.org>