- Fix flush_dcache_page() for usage from irq context
- Handle kprobes breakpoints only in kernel context
- Handle kgdb breakpoints only in kernel context
- Use num_present_cpus() in alternative patching code
- Enable LOCKDEP support
- Add lightweight spinlock checks
- Flush AGP gatt writes and adjust gatt mask in parisc_agp_mask_memory()
- Allow to reboot machine after system halt
- Improve cache flushing for PCXL in arch_sync_dma_for_cpu()
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQS86RI+GtKfB8BJu973ErUQojoPXwUCZG/QkgAKCRD3ErUQojoP
X9MBAQCe2rJxNPmdUVZ8okvKTE/qukbJxa+pSlYm/+w5s4Q6nAD/TCBM5Meil0Q2
IOYAadCt4qaZfCOcIHBOgRqrnLXUbQQ=
=e2J6
-----END PGP SIGNATURE-----
Merge tag 'parisc-for-6.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc architecture fixes from Helge Deller:
"Quite a bunch of real bugfixes in here and most of them are tagged for
backporting: A fix for cache flushing from irq context, a kprobes &
kgdb breakpoint handling fix, and a fix in the alternative code
patching function to take care of CPU hotplugging.
parisc now provides LOCKDEP support and comes with a lightweight
spinlock check. Both features helped me to find the cache flush bug.
Additionally writing the AGP gatt has been fixed, the machine allows
the user to reboot after a system halt and arch_sync_dma_for_cpu() has
been optimized for PCXL PCUs.
Summary:
- Fix flush_dcache_page() for usage from irq context
- Handle kprobes breakpoints only in kernel context
- Handle kgdb breakpoints only in kernel context
- Use num_present_cpus() in alternative patching code
- Enable LOCKDEP support
- Add lightweight spinlock checks
- Flush AGP gatt writes and adjust gatt mask in parisc_agp_mask_memory()
- Allow to reboot machine after system halt
- Improve cache flushing for PCXL in arch_sync_dma_for_cpu()"
* tag 'parisc-for-6.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Fix flush_dcache_page() for usage from irq context
parisc: Handle kgdb breakpoints only in kernel context
parisc: Handle kprobes breakpoints only in kernel context
parisc: Allow to reboot machine after system halt
parisc: Enable LOCKDEP support
parisc: Add lightweight spinlock checks
parisc: Use num_present_cpus() in alternative patching code
parisc: Flush gatt writes and adjust gatt mask in parisc_agp_mask_memory()
parisc: Improve cache flushing for PCXL in arch_sync_dma_for_cpu()
- Fix user-space crashes on 68020/68030.
-----BEGIN PGP SIGNATURE-----
iIsEABYIADMWIQQ9qaHoIs/1I4cXmEiKwlD9ZEnxcAUCZG8O3xUcZ2VlcnRAbGlu
dXgtbTY4ay5vcmcACgkQisJQ/WRJ8XCvywD/TDu1jmuiKKZeIOdGjRQOIW8jL94Y
FlZ/3Ot58VR0A60BAK6My+4pkBoeAO4/cIWQNNf7+vzymV8bVP36BxZVx/IH
=1Qsv
-----END PGP SIGNATURE-----
Merge tag 'm68k-for-v6.4-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k fix from Geert Uytterhoeven:
- Fix signal frame issue causing user-space crashes on 68020/68030
* tag 'm68k-for-v6.4-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k: Move signal frame following exception on 68020/030
Since at least kernel 6.1, flush_dcache_page() is called with IRQs
disabled, e.g. from aio_complete().
But the current implementation for flush_dcache_page() on parisc
unintentionally re-enables IRQs, which may lead to deadlocks.
Fix it by using xa_lock_irqsave() and xa_unlock_irqrestore()
for the flush_dcache_mmap_*lock() macros instead.
Cc: linux-parisc@vger.kernel.org
Cc: stable@kernel.org # 5.18+
Signed-off-by: Helge Deller <deller@gmx.de>
The kernel kgdb break instructions should only be handled when running
in kernel context.
Cc: <stable@vger.kernel.org> # v5.4+
Signed-off-by: Helge Deller <deller@gmx.de>
The kernel kprobes break instructions should only be handled when running
in kernel context.
Cc: <stable@vger.kernel.org> # v5.18+
Signed-off-by: Helge Deller <deller@gmx.de>
In case a machine can't power-off itself on system shutdown,
allow the user to reboot it by pressing the RETURN key.
Cc: <stable@vger.kernel.org> # v4.14+
Signed-off-by: Helge Deller <deller@gmx.de>
Add a lightweight spinlock check which uses only two instructions
per spinlock call. It detects if a spinlock has been trashed by
some memory corruption and then halts the kernel. It will not detect
uninitialized spinlocks, for which CONFIG_DEBUG_SPINLOCK needs to
be enabled.
This lightweight spinlock check shouldn't influence runtime, so it's
safe to enable it by default.
The __ARCH_SPIN_LOCK_UNLOCKED_VAL constant has been choosen small enough
to be able to be loaded by one LDI assembler statement.
Signed-off-by: Helge Deller <deller@gmx.de>
- fix signal delivery to FDPIC process
- add __bswap{si,di}2 helpers
-----BEGIN PGP SIGNATURE-----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=Pb/f
-----END PGP SIGNATURE-----
Merge tag 'xtensa-20230523' of https://github.com/jcmvbkbc/linux-xtensa
Pull Xtensa fixes from Max Filippov:
- fix signal delivery to FDPIC process
- add __bswap{si,di}2 helpers
* tag 'xtensa-20230523' of https://github.com/jcmvbkbc/linux-xtensa:
xtensa: add __bswap{si,di}2 helpers
xtensa: fix signal delivery to FDPIC process
When patching the kernel code some alternatives depend on SMP vs. !SMP.
Use the value of num_present_cpus() instead of num_online_cpus() to
decide, otherwise we may run into issues if and additional CPU is
enabled after having loaded a module while only one CPU was enabled.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v6.1+
-----BEGIN PGP SIGNATURE-----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=TZgh
-----END PGP SIGNATURE-----
Merge tag 'x86_urgent_for_6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Dave Hansen:
"This works around and issue where the INVLPG instruction may miss
invalidating kernel TLB entries in recent hybrid CPUs.
I do expect an eventual microcode fix for this. When the microcode
version numbers are known, we can circle back around and add them the
model table to disable this workaround"
* tag 'x86_urgent_for_6.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Avoid incomplete Global INVLPG flushes
Add comment in arch_sync_dma_for_device() and handle the direction flag in
arch_sync_dma_for_cpu().
When receiving data from the device (DMA_FROM_DEVICE) unconditionally
purge the data cache in arch_sync_dma_for_cpu().
Signed-off-by: Helge Deller <deller@gmx.de>
On 68030/020, an instruction such as, moveml %a2-%a3/%a5,%sp@- may cause
a stack page fault during instruction execution (i.e. not at an
instruction boundary) and produce a format 0xB exception frame.
In this situation, the value of USP will be unreliable. If a signal is
to be delivered following the exception, this USP value is used to
calculate the location for a signal frame. This can result in a
corrupted user stack.
The corruption was detected in dash (actually in glibc) where it showed
up as an intermittent "stack smashing detected" message and crash
following signal delivery for SIGCHLD.
It was hard to reproduce that failure because delivery of the signal
raced with the page fault and because the kernel places an unpredictable
gap of up to 7 bytes between the USP and the signal frame.
A format 0xB exception frame can be produced by a bus error or an
address error. The 68030 Users Manual says that address errors occur
immediately upon detection during instruction prefetch. The instruction
pipeline allows prefetch to overlap with other instructions, which means
an address error can arise during the execution of a different
instruction. So it seems likely that this patch may help in the address
error case also.
Reported-and-tested-by: Stan Johnson <userm57@yahoo.com>
Link: https://lore.kernel.org/all/CAMuHMdW3yD22_ApemzW_6me3adq6A458u1_F0v-1EYwK_62jPA@mail.gmail.com/
Cc: Michael Schmitz <schmitzmic@gmail.com>
Cc: Andreas Schwab <schwab@linux-m68k.org>
Cc: stable@vger.kernel.org
Co-developed-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Finn Thain <fthain@linux-m68k.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/r/9e66262a754fcba50208aa424188896cc52a1dd1.1683365892.git.fthain@linux-m68k.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
* Plug a race in the stage-2 mapping code where the IPA and the PA
would end up being out of sync
* Make better use of the bitmap API (bitmap_zero, bitmap_zalloc...)
* FP/SVE/SME documentation update, in the hope that this field
becomes clearer...
* Add workaround for Apple SEIS brokenness to a new SoC
* Random comment fixes
x86:
* add MSR_IA32_TSX_CTRL into msrs_to_save
* fixes for XCR0 handling in SGX enclaves
Generic:
* Fix vcpu_array[0] races
* Fix race between starting a VM and "reboot -f"
-----BEGIN PGP SIGNATURE-----
iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmRp0WIUHHBib256aW5p
QHJlZGhhdC5jb20ACgkQv/vSX3jHroPqVwf+OFayNPpURAFqfrOuISYW7hoCL24+
sCtXyVv4Ei0np1vGekit2h/m8GmxO12xEBibcFeYj+YQItIqu9HvC08fRxAKaMeE
N3p9iLuS1zcM3cEuZpg0r6QN+pKybttdadl70yho43CtagEM4FmB7dgyAo9AhyXk
pZUaVfoO6beBQ/J6A6V/Q5xlue1LvHk1+K4rmNcYVTYn6ZOd+yYgvqng1nv5/h9b
0HgW0aUWkEHAB67/sSnUUro707loMNTowsZlMCtgDk4Fzf8RwQ7qc8lClLk1UPjJ
DHB6Hif9F0Q5mkrwn+c7xyVlKARaY6/FOshS2Q620q19+4fq5fUD9HgjrQ==
=ARzH
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"ARM:
- Plug a race in the stage-2 mapping code where the IPA and the PA
would end up being out of sync
- Make better use of the bitmap API (bitmap_zero, bitmap_zalloc...)
- FP/SVE/SME documentation update, in the hope that this field
becomes clearer...
- Add workaround for Apple SEIS brokenness to a new SoC
- Random comment fixes
x86:
- add MSR_IA32_TSX_CTRL into msrs_to_save
- fixes for XCR0 handling in SGX enclaves
Generic:
- Fix vcpu_array[0] races
- Fix race between starting a VM and 'reboot -f'"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: VMX: add MSR_IA32_TSX_CTRL into msrs_to_save
KVM: x86: Don't adjust guest's CPUID.0x12.1 (allowed SGX enclave XFRM)
KVM: VMX: Don't rely _only_ on CPUID to enforce XCR0 restrictions for ECREATE
KVM: Fix vcpu_array[0] races
KVM: VMX: Fix header file dependency of asm/vmx.h
KVM: Don't enable hardware after a restart/shutdown is initiated
KVM: Use syscore_ops instead of reboot_notifier to hook restart/shutdown
KVM: arm64: vgic: Add Apple M2 PRO/MAX cpus to the list of broken SEIS implementations
KVM: arm64: Clarify host SME state management
KVM: arm64: Restructure check for SVE support in FP trap handler
KVM: arm64: Document check for TIF_FOREIGN_FPSTATE
KVM: arm64: Fix repeated words in comments
KVM: arm64: Constify start/end/phys fields of the pgtable walker data
KVM: arm64: Infer PA offset from VA in hyp map walker
KVM: arm64: Infer the PA offset from IPA in stage-2 map walker
KVM: arm64: Use the bitmap API to allocate bitmaps
KVM: arm64: Slightly optimize flush_context()
- Fix broken soft dirty tracking when using the Radix MMU (>= P9).
- Fix ISA mapping when "ranges" property is not present, for PASemi Nemo boards.
- Fix a possible WARN_ON_ONCE hitting in BPF extable handling.
- Fix incorrect DMA address handling when using 2MB TCEs.
- Fix a bug in IOMMU table handling for SR-IOV devices.
- Fix the recent rework of IOMMU handling which left arch code calling clean
up routines that are handled by the IOMMU core.
- A few assorted build fixes.
Thanks to: Christian Zigotzky, Dan Horák, Gaurav Batra, Hari Bathini, Jason
Gunthorpe, Nathan Chancellor, Naveen N. Rao, Nicholas Piggin, Pali Rohár, Randy
Dunlap, Rob Herring.
-----BEGIN PGP SIGNATURE-----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=mz+r
-----END PGP SIGNATURE-----
Merge tag 'powerpc-6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix broken soft dirty tracking when using the Radix MMU (>= P9)
- Fix ISA mapping when "ranges" property is not present, for PASemi
Nemo boards
- Fix a possible WARN_ON_ONCE hitting in BPF extable handling
- Fix incorrect DMA address handling when using 2MB TCEs
- Fix a bug in IOMMU table handling for SR-IOV devices
- Fix the recent rework of IOMMU handling which left arch code calling
clean up routines that are handled by the IOMMU core
- A few assorted build fixes
Thanks to Christian Zigotzky, Dan Horák, Gaurav Batra, Hari Bathini,
Jason Gunthorpe, Nathan Chancellor, Naveen N. Rao, Nicholas Piggin, Pali
Rohár, Randy Dunlap, and Rob Herring.
* tag 'powerpc-6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/iommu: Incorrect DDW Table is referenced for SR-IOV device
powerpc/iommu: DMA address offset is incorrectly calculated with 2MB TCEs
powerpc/iommu: Remove iommu_del_device()
powerpc/crypto: Fix aes-gcm-p10 build when VSX=n
powerpc/bpf: populate extable entries only during the last pass
powerpc/boot: Disable power10 features after BOOTAFLAGS assignment
powerpc/64s/radix: Fix soft dirty tracking
powerpc/fsl_uli1575: fix kconfig warnings and build errors
powerpc/isa-bridge: Fix ISA mapping when "ranges" is not present
Add MSR_IA32_TSX_CTRL into msrs_to_save[] to explicitly tell userspace to
save/restore the register value during migration. Missing this may cause
userspace that relies on KVM ioctl(KVM_GET_MSR_INDEX_LIST) fail to port the
value to the target VM.
In addition, there is no need to add MSR_IA32_TSX_CTRL when
ARCH_CAP_TSX_CTRL_MSR is not supported in kvm_get_arch_capabilities(). So
add the checking in kvm_probe_msr_to_save().
Fixes: c11f83e0626b ("KVM: vmx: implement MSR_IA32_TSX_CTRL disable RTM functionality")
Reported-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Mingwei Zhang <mizhang@google.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Message-Id: <20230509032348.1153070-1-mizhang@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Drop KVM's manipulation of guest's CPUID.0x12.1 ECX and EDX, i.e. the
allowed XFRM of SGX enclaves, now that KVM explicitly checks the guest's
allowed XCR0 when emulating ECREATE.
Note, this could theoretically break a setup where userspace advertises
a "bad" XFRM and relies on KVM to provide a sane CPUID model, but QEMU
is the only known user of KVM SGX, and QEMU explicitly sets the SGX CPUID
XFRM subleaf based on the guest's XCR0.
Reviewed-by: Kai Huang <kai.huang@intel.com>
Tested-by: Kai Huang <kai.huang@intel.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230503160838.3412617-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Explicitly check the vCPU's supported XCR0 when determining whether or not
the XFRM for ECREATE is valid. Checking CPUID works because KVM updates
guest CPUID.0x12.1 to restrict the leaf to a subset of the guest's allowed
XCR0, but that is rather subtle and KVM should not modify guest CPUID
except for modeling true runtime behavior (allowed XFRM is most definitely
not "runtime" behavior).
Reviewed-by: Kai Huang <kai.huang@intel.com>
Tested-by: Kai Huang <kai.huang@intel.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230503160838.3412617-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
- Add check whether the required facilities are installed
before using the s390-specific ChaCha20 implementation.
- Key blobs for s390 protected key interface IOCTLs commands
PKEY_VERIFYKEY2 and PKEY_VERIFYKEY3 may contain clear key
material. Zeroize copies of these keys in kernel memory
after creating protected keys.
- Set CONFIG_INIT_STACK_NONE=y in defconfigs to avoid extra
overhead of initializing all stack variables by default.
- Make sure that when a new channel-path is enabled all
subchannels are evaluated: with and without any devices
connected on it.
- When SMT thread CPUs are added to CPU topology masks the
nr_cpu_ids limit is not checked and could be exceeded.
Respect the nr_cpu_ids limit and avoid a warning when
CONFIG_DEBUG_PER_CPU_MAPS is set.
- The pointer to IPL Parameter Information Block is stored
in the absolute lowcore as a virtual address. Save it as
the physical address for later use by dump tools.
- Fix a Queued Direct I/O (QDIO) problem on z/VM guests using
QIOASSIST with dedicated (pass through) QDIO-based devices
such as FCP, real OSA or HiperSockets.
- s390's struct statfs and struct statfs64 contain padding,
which field-by-field copying does not set. Initialize the
respective structures with zeros before filling them and
copying to userspace.
- Grow s390 compat_statfs64, statfs and statfs64 structures
f_spare array member to cover padding and simplify things.
- Remove obsolete SCHED_BOOK and SCHED_DRAWER configs.
- Remove unneeded S390_CCW_IOMMU and S390_AP_IOM configs.
-----BEGIN PGP SIGNATURE-----
iI0EABYIADUWIQQrtrZiYVkVzKQcYivNdxKlNrRb8AUCZGd5BRccYWdvcmRlZXZA
bGludXguaWJtLmNvbQAKCRDNdxKlNrRb8OqMAQCsdBG7eR3dp3mY8ao34dqlWt98
rDQD8oiMgCkFyn77jQEAoo3HhqWY8oTu88fl82dkF0OpGW+7zgoNHUYhH8Z0gAY=
=wtTO
-----END PGP SIGNATURE-----
Merge tag 's390-6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Alexander Gordeev:
- Add check whether the required facilities are installed before using
the s390-specific ChaCha20 implementation
- Key blobs for s390 protected key interface IOCTLs commands
PKEY_VERIFYKEY2 and PKEY_VERIFYKEY3 may contain clear key material.
Zeroize copies of these keys in kernel memory after creating
protected keys
- Set CONFIG_INIT_STACK_NONE=y in defconfigs to avoid extra overhead of
initializing all stack variables by default
- Make sure that when a new channel-path is enabled all subchannels are
evaluated: with and without any devices connected on it
- When SMT thread CPUs are added to CPU topology masks the nr_cpu_ids
limit is not checked and could be exceeded. Respect the nr_cpu_ids
limit and avoid a warning when CONFIG_DEBUG_PER_CPU_MAPS is set
- The pointer to IPL Parameter Information Block is stored in the
absolute lowcore as a virtual address. Save it as the physical
address for later use by dump tools
- Fix a Queued Direct I/O (QDIO) problem on z/VM guests using QIOASSIST
with dedicated (pass through) QDIO-based devices such as FCP, real
OSA or HiperSockets
- s390's struct statfs and struct statfs64 contain padding, which
field-by-field copying does not set. Initialize the respective
structures with zeros before filling them and copying to userspace
- Grow s390 compat_statfs64, statfs and statfs64 structures f_spare
array member to cover padding and simplify things
- Remove obsolete SCHED_BOOK and SCHED_DRAWER configs
- Remove unneeded S390_CCW_IOMMU and S390_AP_IOM configs
* tag 's390-6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/iommu: get rid of S390_CCW_IOMMU and S390_AP_IOMMU
s390/Kconfig: remove obsolete configs SCHED_{BOOK,DRAWER}
s390/uapi: cover statfs padding by growing f_spare
statfs: enforce statfs[64] structure initialization
s390/qdio: fix do_sqbs() inline assembly constraint
s390/ipl: fix IPIB virtual vs physical address confusion
s390/topology: honour nr_cpu_ids when adding CPUs
s390/cio: include subchannels without devices also for evaluation
s390/defconfigs: set CONFIG_INIT_STACK_NONE=y
s390/pkey: zeroize key blobs
s390/crypto: use vector instructions only if available for ChaCha20
- Avoid erroneously marking untagged pages with PG_mte_tagged
- Always reset KASAN tags for destination page in copy_page()
- Mark PMU header functions 'static inline'
- Fix some sparse warnings due to missing casts
-----BEGIN PGP SIGNATURE-----
iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAmRnVj4QHHdpbGxAa2Vy
bmVsLm9yZwAKCRC3rHDchMFjNJdMB/94LS7O5EVgx0qVg7g7D0LDs6f++eJ8Ya0V
32QSPal1KRFIBvHdyyQWdce0j+hs0mefsJ8fUTA16Jl8UrZ5U2XKzV3czvxZHjeX
AcBhw2nNVTH3vG1lXJzQLMGtgsVGXAw/DNwCgztNnlNCvyS+dpb7Gzrwv1safxni
eXs8nvyAlowzfvCWk4bNAE8ZLB4ckAAuPrzactzVJ6I397kk5i/PPUSWzG6syx3G
qPXE3XSYtlqQ/ZmGnoE/PWTGPNcieWfeQcHlIT+00tdH/FWd+rJdIb5VW0JKDtLo
Rqtpq0SfZTqg6+GdzQUbLVfOcAte3TiD7qOcA1xnT2z4IjEQGIav
=eZEU
-----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:
"A mixture of compiler/static checker resolutions and a couple of MTE
fixes:
- Avoid erroneously marking untagged pages with PG_mte_tagged
- Always reset KASAN tags for destination page in copy_page()
- Mark PMU header functions 'static inline'
- Fix some sparse warnings due to missing casts"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: mte: Do not set PG_mte_tagged if tags were not initialized
arm64: Also reset KASAN tag if page is not PG_mte_tagged
arm64: perf: Mark all accessor functions inline
ARM: perf: Mark all accessor functions inline
arm64: vdso: Pass (void *) to virt_to_page()
arm64/mm: mark private VM_FAULT_X defines as vm_fault_t
Include a definition of WARN_ON_ONCE() before using it.
Fixes: bb1fcc70d98f ("KVM: nVMX: Allow L1 to use 5-level page walks for nested EPT")
Cc: Sean Christopherson <seanjc@google.com>
Signed-off-by: Jacob Xu <jacobhxu@google.com>
[reworded commit message; changed <asm/bug.h> to <linux/bug.h>]
Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220225012959.1554168-1-jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
- Initialize 'ret' local variables on fprobe_handler() to fix the smatch
warning. With this, fprobe function exit handler is not working
randomly.
- Fix to use preempt_enable/disable_notrace for rethook handler to
prevent recursive call of fprobe exit handler (which is based on
rethook)
- Fix recursive call issue on fprobe_kprobe_handler().
- Fix to detect recursive call on fprobe_exit_handler().
- Fix to make all arch-dependent rethook code notrace.
(the arch-independent code is already notrace)
-----BEGIN PGP SIGNATURE-----
iQEzBAABCgAdFiEEh7BulGwFlgAOi5DV2/sHvwUrPxsFAmRmKgQACgkQ2/sHvwUr
PxvlCgf+OJk5O9IJlTgqDV6JNPsTzFS7qqyAyQmZW9Bj8STfWAIRxa0zeGbZE58K
5LwgzAj+SqzYRwIvzzZ3xsA5j7f1Wj7wG0TQgmpnIW+hprwDrLsUhoZ5s1D/Ojel
A4rAnqCrgnh5m5SenU2QCUngGKn004j4RASaZvRELDyvyIkBSqNhswCH8ZWGPror
KuCu5AmEnFagYl0lmNL3H2aCITAg3QEK+fE6iR+lYsqfR3xbs4YAcqiylHBdY0wX
ssK7LVdRmv7O6TxSj4P2ohDvLJP3eL9bVirsJpg0OVbqWJCs65T2rJJjXiKojYXf
vSVWFJFK5oV98ZHfXTG9R7x0DEwc+g==
=jO68
-----END PGP SIGNATURE-----
Merge tag 'probes-fixes-v6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull probes fixes from Masami Hiramatsu:
- Initialize 'ret' local variables on fprobe_handler() to fix the
smatch warning. With this, fprobe function exit handler is not
working randomly.
- Fix to use preempt_enable/disable_notrace for rethook handler to
prevent recursive call of fprobe exit handler (which is based on
rethook)
- Fix recursive call issue on fprobe_kprobe_handler()
- Fix to detect recursive call on fprobe_exit_handler()
- Fix to make all arch-dependent rethook code notrace (the
arch-independent code is already notrace)"
* tag 'probes-fixes-v6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
rethook, fprobe: do not trace rethook related functions
fprobe: add recursion detection in fprobe_exit_handler
fprobe: make fprobe_kprobe_handler recursion free
rethook: use preempt_{disable, enable}_notrace in rethook_trampoline_handler
tracing: fprobe: Initialize ret valiable to fix smatch error
bluetooth and netfilter.
Current release - regressions:
- ipv6: fix RCU splat in ipv6_route_seq_show()
- wifi: iwlwifi: disable RFI feature
Previous releases - regressions:
- tcp: fix possible sk_priority leak in tcp_v4_send_reset()
- tipc: do not update mtu if msg_max is too small in mtu negotiation
- netfilter: fix null deref on element insertion
- devlink: change per-devlink netdev notifier to static one
- phylink: fix ksettings_set() ethtool call
- wifi: mac80211: fortify the spinlock against deadlock by interrupt
- wifi: brcmfmac: check for probe() id argument being NULL
- eth: ice:
- fix undersized tx_flags variable
- fix ice VF reset during iavf initialization
- eth: hns3: fix sending pfc frames after reset issue
Previous releases - always broken:
- xfrm: release all offloaded policy memory
- nsh: use correct mac_offset to unwind gso skb in nsh_gso_segment()
- vsock: avoid to close connected socket after the timeout
- dsa: rzn1-a5psw: enable management frames for CPU port
- eth: virtio_net: fix error unwinding of XDP initialization
- eth: tun: fix memory leak for detached NAPI queue.
Misc:
- MAINTAINERS: sctp: move Neil to CREDITS
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
-----BEGIN PGP SIGNATURE-----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=PfWP
-----END PGP SIGNATURE-----
Merge tag 'net-6.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from can, xfrm, bluetooth and netfilter.
Current release - regressions:
- ipv6: fix RCU splat in ipv6_route_seq_show()
- wifi: iwlwifi: disable RFI feature
Previous releases - regressions:
- tcp: fix possible sk_priority leak in tcp_v4_send_reset()
- tipc: do not update mtu if msg_max is too small in mtu negotiation
- netfilter: fix null deref on element insertion
- devlink: change per-devlink netdev notifier to static one
- phylink: fix ksettings_set() ethtool call
- wifi: mac80211: fortify the spinlock against deadlock by interrupt
- wifi: brcmfmac: check for probe() id argument being NULL
- eth: ice:
- fix undersized tx_flags variable
- fix ice VF reset during iavf initialization
- eth: hns3: fix sending pfc frames after reset issue
Previous releases - always broken:
- xfrm: release all offloaded policy memory
- nsh: use correct mac_offset to unwind gso skb in nsh_gso_segment()
- vsock: avoid to close connected socket after the timeout
- dsa: rzn1-a5psw: enable management frames for CPU port
- eth: virtio_net: fix error unwinding of XDP initialization
- eth: tun: fix memory leak for detached NAPI queue.
Misc:
- MAINTAINERS: sctp: move Neil to CREDITS"
* tag 'net-6.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (107 commits)
MAINTAINERS: skip CCing netdev for Bluetooth patches
mdio_bus: unhide mdio_bus_init prototype
bridge: always declare tunnel functions
atm: hide unused procfs functions
net: isa: include net/Space.h
Revert "ARM: dts: stm32: add CAN support on stm32f746"
netfilter: nft_set_rbtree: fix null deref on element insertion
netfilter: nf_tables: fix nft_trans type confusion
netfilter: conntrack: define variables exp_nat_nla_policy and any_addr with CONFIG_NF_NAT
net: wwan: t7xx: Ensure init is completed before system sleep
net: selftests: Fix optstring
net: pcs: xpcs: fix C73 AN not getting enabled
net: wwan: iosm: fix NULL pointer dereference when removing device
vlan: fix a potential uninit-value in vlan_dev_hard_start_xmit()
mailmap: add entries for Nikolay Aleksandrov
igb: fix bit_shift to be in [1..8] range
net: dsa: mv88e6xxx: Fix mv88e6393x EPC write command offset
cassini: Fix a memory leak in the error handling path of cas_init_one()
tun: Fix memory leak for detached NAPI queue.
can: kvaser_pciefd: Disable interrupts in probe error path
...
These functions are already marked as NOKPROBE to prevent recursion and
we have the same reason to blacklist them if rethook is used with fprobe,
since they are beyond the recursion-free region ftrace can guard.
Link: https://lore.kernel.org/all/20230517034510.15639-5-zegao@tencent.com/
Fixes: f3a112c0c40d ("x86,rethook,kprobes: Replace kretprobe with rethook on x86")
Signed-off-by: Ze Gao <zegao@tencent.com>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
- Plug a race in the stage-2 mapping code where the IPA and the PA
would end up being out of sync
- Make better use of the bitmap API (bitmap_zero, bitmap_zalloc...)
- FP/SVE/SME documentation update, in the hope that this field
becomes clearer...
- Add workaround for the usual Apple SEIS brokenness
- Random comment fixes
-----BEGIN PGP SIGNATURE-----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=y6WB
-----END PGP SIGNATURE-----
Merge tag 'kvmarm-fixes-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 6.4, take #1
- Plug a race in the stage-2 mapping code where the IPA and the PA
would end up being out of sync
- Make better use of the bitmap API (bitmap_zero, bitmap_zalloc...)
- FP/SVE/SME documentation update, in the hope that this field
becomes clearer...
- Add workaround for the usual Apple SEIS brokenness
- Random comment fixes
The INVLPG instruction is used to invalidate TLB entries for a
specified virtual address. When PCIDs are enabled, INVLPG is supposed
to invalidate TLB entries for the specified address for both the
current PCID *and* Global entries. (Note: Only kernel mappings set
Global=1.)
Unfortunately, some INVLPG implementations can leave Global
translations unflushed when PCIDs are enabled.
As a workaround, never enable PCIDs on affected processors.
I expect there to eventually be microcode mitigations to replace this
software workaround. However, the exact version numbers where that
will happen are not known today. Once the version numbers are set in
stone, the processor list can be tweaked to only disable PCIDs on
affected processors with affected microcode.
Note: if anyone wants a quick fix that doesn't require patching, just
stick 'nopcid' on your kernel command-line.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
These don't do anything anymore, the only user of the symbol was
VFIO_CCW/AP which already "depends on VFIO" and VFIO itself selects
IOMMU_API.
When this was added VFIO was wrongly doing "depends on IOMMU_API" which
required some contortions like this to ensure IOMMU_API was turned on.
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/0-v2-eb322ce2e547+188f-rm_iommu_ccw_jgg@nvidia.com
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Commit f1045056c726 ("topology/sysfs: rework book and drawer topology
ifdefery") activates the book and drawer topology, previously activated by
CONFIG_SCHED_{BOOK,DRAWER}, dependent on the existence of certain macro
definitions. Hence, since then, CONFIG_SCHED_{BOOK,DRAWER} have no effect
and any further purpose.
Remove the obsolete configs SCHED_{BOOK,DRAWER}.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20230508040916.16733-1-lukas.bulwahn@gmail.com
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
For an SR-IOV device, while enabling DDW, a new table is created and
added at index 1 in the group. In the below 2 scenarios, the table is
incorrectly referenced at index 0 (which is where the table is for
default DMA window).
1. When adding DDW
This issue is exposed with "slub_debug". Error thrown out from
dma_iommu_dma_supported()
Warning: IOMMU offset too big for device mask
mask: 0xffffffff, table offset: 0x800000000000000
2. During Dynamic removal of the PCI device.
Error is from iommu_tce_table_put() since a NULL table pointer is
passed in.
Fixes: 381ceda88c4c ("powerpc/pseries/iommu: Make use of DDW for indirect mapping")
Cc: stable@vger.kernel.org # v5.15+
Signed-off-by: Gaurav Batra <gbatra@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230505184701.91613-1-gbatra@linux.vnet.ibm.com
When DMA window is backed by 2MB TCEs, the DMA address for the mapped
page should be the offset of the page relative to the 2MB TCE. The code
was incorrectly setting the DMA address to the beginning of the TCE
range.
Mellanox driver is reporting timeout trying to ENABLE_HCA for an SR-IOV
ethernet port, when DMA window is backed by 2MB TCEs.
Fixes: 387273118714 ("powerps/pseries/dma: Add support for 2M IOMMU page size")
Cc: stable@vger.kernel.org # v5.16+
Signed-off-by: Gaurav Batra <gbatra@linux.vnet.ibm.com>
Reviewed-by: Greg Joyce <gjoyce@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230504175913.83844-1-gbatra@linux.vnet.ibm.com
Now that power calls iommu_device_register() and populates its groups
using iommu_ops->device_group it should not be calling
iommu_group_remove_device().
The core code owns the groups and all the other related iommu data, it
will clean it up automatically.
Remove the bus notifiers and explicit calls to
iommu_group_remove_device().
Fixes: a940904443e4 ("powerpc/iommu: Add iommu_ops to report capabilities and allow blocking domains")
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/0-v1-1421774b874b+167-ppc_device_group_jgg@nvidia.com
The mte_sync_page_tags() function sets PG_mte_tagged if it initializes
page tags. Then we return to mte_sync_tags(), which sets PG_mte_tagged
again. At best, this is redundant. However, it is possible for
mte_sync_page_tags() to return without having initialized tags for the
page, i.e. in the case where check_swap is true (non-compound page),
is_swap_pte(old_pte) is false and pte_is_tagged is false. So at worst,
we set PG_mte_tagged on a page with uninitialized tags. This can happen
if, for example, page migration causes a PTE for an untagged page to
be replaced. If the userspace program subsequently uses mprotect() to
enable PROT_MTE for that page, the uninitialized tags will be exposed
to userspace.
Fix it by removing the redundant call to set_page_mte_tagged().
Fixes: e059853d14ca ("arm64: mte: Fix/clarify the PG_mte_tagged semantics")
Signed-off-by: Peter Collingbourne <pcc@google.com>
Cc: <stable@vger.kernel.org> # 6.1
Link: https://linux-review.googlesource.com/id/Ib02d004d435b2ed87603b858ef7480f7b1463052
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Link: https://lore.kernel.org/r/20230420214327.2357985-1-pcc@google.com
Signed-off-by: Will Deacon <will@kernel.org>
Consider the following sequence of events:
1) A page in a PROT_READ|PROT_WRITE VMA is faulted.
2) Page migration allocates a page with the KASAN allocator,
causing it to receive a non-match-all tag, and uses it
to replace the page faulted in 1.
3) The program uses mprotect() to enable PROT_MTE on the page faulted in 1.
As a result of step 3, we are left with a non-match-all tag for a page
with tags accessible to userspace, which can lead to the same kind of
tag check faults that commit e74a68468062 ("arm64: Reset KASAN tag in
copy_highpage with HW tags only") intended to fix.
The general invariant that we have for pages in a VMA with VM_MTE_ALLOWED
is that they cannot have a non-match-all tag. As a result of step 2, the
invariant is broken. This means that the fix in the referenced commit
was incomplete and we also need to reset the tag for pages without
PG_mte_tagged.
Fixes: e5b8d9218951 ("arm64: mte: reset the page tag in page->flags")
Cc: <stable@vger.kernel.org> # 5.15
Link: https://linux-review.googlesource.com/id/I7409cdd41acbcb215c2a7417c1e50d37b875beff
Signed-off-by: Peter Collingbourne <pcc@google.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20230420210945.2313627-1-pcc@google.com
Signed-off-by: Will Deacon <will@kernel.org>
When just including <asm/arm_pmuv3.h>:
arch/arm64/include/asm/arm_pmuv3.h:31:13: error: ‘write_pmevtypern’ defined but not used [-Werror=unused-function]
31 | static void write_pmevtypern(int n, unsigned long val)
| ^~~~~~~~~~~~~~~~
arch/arm64/include/asm/arm_pmuv3.h:24:13: error: ‘write_pmevcntrn’ defined but not used [-Werror=unused-function]
24 | static void write_pmevcntrn(int n, unsigned long val)
| ^~~~~~~~~~~~~~~
arch/arm64/include/asm/arm_pmuv3.h:16:22: error: ‘read_pmevcntrn’ defined but not used [-Werror=unused-function]
16 | static unsigned long read_pmevcntrn(int n)
| ^~~~~~~~~~~~~~
Fix this by adding the missing "inline" keywords to the three accessor
functions that lack them.
Fixes: df29ddf4f04b ("arm64: perf: Abstract system register accesses away")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/d53a19043c0c3bd25f6c203e73a2fb08a9661824.1683561482.git.geert+renesas@glider.be
Signed-off-by: Will Deacon <will@kernel.org>
When just including <asm/arm_pmuv3.h>:
arch/arm/include/asm/arm_pmuv3.h:110:13: error: ‘write_pmevtypern’ defined but not used [-Werror=unused-function]
110 | static void write_pmevtypern(int n, unsigned long val)
| ^~~~~~~~~~~~~~~~
arch/arm/include/asm/arm_pmuv3.h:103:13: error: ‘write_pmevcntrn’ defined but not used [-Werror=unused-function]
103 | static void write_pmevcntrn(int n, unsigned long val)
| ^~~~~~~~~~~~~~~
arch/arm/include/asm/arm_pmuv3.h:95:22: error: ‘read_pmevcntrn’ defined but not used [-Werror=unused-function]
95 | static unsigned long read_pmevcntrn(int n)
| ^~~~~~~~~~~~~~
Fix this by adding the missing "inline" keywords to the three accessor
functions that lack them.
Fixes: 009d6dc87a56 ("ARM: perf: Allow the use of the PMUv3 driver on 32bit ARM")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/3a7d9bc7470aa2d85696ee9765c74f8c03fb5454.1683561482.git.geert+renesas@glider.be
Signed-off-by: Will Deacon <will@kernel.org>
Like the other calls in this function virt_to_page() expects
a pointer, not an integer.
However since many architectures implement virt_to_pfn() as
a macro, this function becomes polymorphic and accepts both a
(unsigned long) and a (void *).
Fix this up with an explicit cast.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: http://lists.infradead.org/pipermail/linux-arm-kernel/2023-May/832583.html
Signed-off-by: Will Deacon <will@kernel.org>
Add support for bxcan (Basic eXtended CAN controller) to STM32F746. The
chip contains three CAN peripherals, CAN1 and CAN2 in dual peripheral
configuration and CAN3 in single peripheral configuration:
- Dual CAN peripheral configuration:
* CAN1: Primary bxCAN for managing the communication between a secondary
bxCAN and the 512-byte SRAM memory.
* CAN2: Secondary bxCAN with no direct access to the SRAM memory.
This means that the two bxCAN cells share the 512-byte SRAM memory and
CAN2 can't be used without enabling CAN1.
- Single CAN peripheral configuration:
* CAN3: Primary bxCAN with dedicated Memory Access Controller unit and
512-byte SRAM memory.
-------------------------------------------------------------------------
| features | CAN1 | CAN2 | CAN 3 |
-------------------------------------------------------------------------
| SRAM | 512-byte shared between CAN1 & CAN2 | 512-byte |
-------------------------------------------------------------------------
| Filters | 26 filters shared between CAN1 & CAN2 | 14 filters |
-------------------------------------------------------------------------
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://lore.kernel.org/all/20230427204540.3126234-6-dario.binacchi@amarulasolutions.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This is a preparation patch for the upcoming support to manage CAN
peripherals in single configuration.
The addition ensures backwards compatibility.
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Link: https://lore.kernel.org/all/20230427204540.3126234-3-dario.binacchi@amarulasolutions.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
When VSX is disabled, eg. microwatt_defconfig, the build fails with:
In function ‘enable_kernel_vsx’,
inlined from ‘vsx_begin’ at arch/powerpc/crypto/aes-gcm-p10-glue.c:68:2,
inlined from ‘p10_aes_gcm_crypt.constprop’ at arch/powerpc/crypto/aes-gcm-p10-glue.c:244:2:
...
arch/powerpc/include/asm/switch_to.h:86:9: note: in expansion of macro ‘BUILD_BUG’
86 | BUILD_BUG();
| ^~~~~~~~~
Fix it by making the p10-aes-gcm code depend on VSX.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230515124731.122962-1-mpe%40ellerman.id.au
The pointer to IPL Parameter Information Block is stored
in the absolute lowcore for later use by dump tools. That
pointer is a virtual address, though it should be physical
instead.
Note, this does not fix a real issue, since virtual and
physical addresses are currently the same.
Suggested-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
When SMT thread CPUs are added to CPU masks the nr_cpu_ids
limit is not checked and could be exceeded. This leads to
a warning for example if CONFIG_DEBUG_PER_CPU_MAPS is set
and the command line parameter nr_cpus is set to 1.
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Set CONFIG_INIT_STACK_NONE=y in defconfigs to avoid the extra overhead of
initializing all stack variables by default. Users who want to have that
must change the configuration on their own.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Since commit 85e031154c7c ("powerpc/bpf: Perform complete extra passes
to update addresses"), two additional passes are performed to avoid
space and CPU time wastage on powerpc. But these extra passes led to
WARN_ON_ONCE() hits in bpf_add_extable_entry() as extable entries are
populated again, during the extra pass, without resetting the index.
Fix it by resetting entry index before repopulating extable entries,
if and when there is an additional pass.
Fixes: 85e031154c7c ("powerpc/bpf: Perform complete extra passes to update addresses")
Cc: stable@vger.kernel.org # v6.3+
Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Reviewed-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230425065829.18189-1-hbathini@linux.ibm.com
- Fix encoding of swp_entry due to added SWP_EXCLUSIVE flag
- Include reboot.h to avoid gcc-12 compiler warning
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQS86RI+GtKfB8BJu973ErUQojoPXwUCZGEQcQAKCRD3ErUQojoP
X9UDAQCRpuIPVJcdOmb1iIfv0+IFShNHEOb6yn2Yl8F33s3UYAD+LZyuMXDID2zj
QkeZaQWEaya6/YwEPDGKb05YwEdu4gI=
=L8XB
-----END PGP SIGNATURE-----
Merge tag 'parisc-for-6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc architecture fixes from Helge Deller:
- Fix encoding of swp_entry due to added SWP_EXCLUSIVE flag
- Include reboot.h to avoid gcc-12 compiler warning
* tag 'parisc-for-6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
parisc: Fix encoding of swp_entry due to added SWP_EXCLUSIVE flag
parisc: kexec: include reboot.h
