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Pull more tracing updates from Steven Rostedt:
- Rename the staging files to give them some meaning. Just
stage1,stag2,etc, does not show what they are for
- Check for NULL from allocation in bootconfig
- Hold event mutex for dyn_event call in user events
- Mark user events to broken (to work on the API)
- Remove eBPF updates from user events
- Remove user events from uapi header to keep it from being installed.
- Move ftrace_graph_is_dead() into inline as it is called from hot
paths and also convert it into a static branch.
* tag 'trace-v5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Move user_events.h temporarily out of include/uapi
ftrace: Make ftrace_graph_is_dead() a static branch
tracing: Set user_events to BROKEN
tracing/user_events: Remove eBPF interfaces
tracing/user_events: Hold event_mutex during dyn_event_add
proc: bootconfig: Add null pointer check
tracing: Rename the staging files for trace_events
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Pull more dma-mapping updates from Christoph Hellwig:
- fix a regression in dma remap handling vs AMD memory encryption (me)
- finally kill off the legacy PCI DMA API (Christophe JAILLET)
* tag 'dma-mapping-5.18-1' of git://git.infradead.org/users/hch/dma-mapping:
dma-mapping: move pgprot_decrypted out of dma_pgprot
PCI/doc: cleanup references to the legacy PCI DMA API
PCI: Remove the deprecated "pci-dma-compat.h" API
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Pull kvm fixes from Paolo Bonzini:
- Only do MSR filtering for MSRs accessed by rdmsr/wrmsr
- Documentation improvements
- Prevent module exit until all VMs are freed
- PMU Virtualization fixes
- Fix for kvm_irq_delivery_to_apic_fast() NULL-pointer dereferences
- Other miscellaneous bugfixes
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (42 commits)
KVM: x86: fix sending PV IPI
KVM: x86/mmu: do compare-and-exchange of gPTE via the user address
KVM: x86: Remove redundant vm_entry_controls_clearbit() call
KVM: x86: cleanup enter_rmode()
KVM: x86: SVM: fix tsc scaling when the host doesn't support it
kvm: x86: SVM: remove unused defines
KVM: x86: SVM: move tsc ratio definitions to svm.h
KVM: x86: SVM: fix avic spec based definitions again
KVM: MIPS: remove reference to trap&emulate virtualization
KVM: x86: document limitations of MSR filtering
KVM: x86: Only do MSR filtering when access MSR by rdmsr/wrmsr
KVM: x86/emulator: Emulate RDPID only if it is enabled in guest
KVM: x86/pmu: Fix and isolate TSX-specific performance event logic
KVM: x86: mmu: trace kvm_mmu_set_spte after the new SPTE was set
KVM: x86/svm: Clear reserved bits written to PerfEvtSeln MSRs
KVM: x86: Trace all APICv inhibit changes and capture overall status
KVM: x86: Add wrappers for setting/clearing APICv inhibits
KVM: x86: Make APICv inhibit reasons an enum and cleanup naming
KVM: X86: Handle implicit supervisor access with SMAP
KVM: X86: Rename variable smap to not_smap in permission_fault()
...
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Remove eBPF interfaces within user_events to ensure they are fully
reviewed.
Link: https://lore.kernel.org/all/20220329165718.GA10381@kbox/
Link: https://lkml.kernel.org/r/20220329173051.10087-1-beaub@linux.microsoft.com
Suggested-by: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Signed-off-by: Beau Belgrave <beaub@linux.microsoft.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20220313140522.1307751-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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MSR filtering requires an exit to userspace that is hard to implement and
would be very slow in the case of nested VMX vmexit and vmentry MSR
accesses. Document the limitation.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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It isn't OK to cache the dirty status of a page in internal structures
for an indefinite period of time.
Any time a vCPU exits the run loop to userspace might be its last; the
VMM might do its final check of the dirty log, flush the last remaining
dirty pages to the destination and complete a live migration. If we
have internal 'dirty' state which doesn't get flushed until the vCPU
is finally destroyed on the source after migration is complete, then
we have lost data because that will escape the final copy.
This problem already exists with the use of kvm_vcpu_unmap() to mark
pages dirty in e.g. VMX nesting.
Note that the actual Linux MM already considers the page to be dirty
since we have a writeable mapping of it. This is just about the KVM
dirty logging.
For the nesting-style use cases (KVM_GUEST_USES_PFN) we will need to
track which gfn_to_pfn_caches have been used and explicitly mark the
corresponding pages dirty before returning to userspace. But we would
have needed external tracking of that anyway, rather than walking the
full list of GPCs to find those belonging to this vCPU which are dirty.
So let's rely *solely* on that external tracking, and keep it simple
rather than laying a tempting trap for callers to fall into.
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20220303154127.202856-3-dwmw2@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Don't actually set a request bit in vcpu->requests when making a request
purely to force a vCPU to exit the guest. Logging a request but not
actually consuming it would cause the vCPU to get stuck in an infinite
loop during KVM_RUN because KVM would see the pending request and bail
from VM-Enter to service the request.
Note, it's currently impossible for KVM to set KVM_REQ_GPC_INVALIDATE as
nothing in KVM is wired up to set guest_uses_pa=true. But, it'd be all
too easy for arch code to introduce use of kvm_gfn_to_pfn_cache_init()
without implementing handling of the request, especially since getting
test coverage of MMU notifier interaction with specific KVM features
usually requires a directed test.
Opportunistically rename gfn_to_pfn_cache_invalidate_start()'s wake_vcpus
to evict_vcpus. The purpose of the request is to get vCPUs out of guest
mode, it's supposed to _avoid_ waking vCPUs that are blocking.
Opportunistically rename KVM_REQ_GPC_INVALIDATE to be more specific as to
what it wants to accomplish, and to genericize the name so that it can
used for similar but unrelated scenarios, should they arise in the future.
Add a comment and documentation to explain why the "no action" request
exists.
Add compile-time assertions to help detect improper usage. Use the inner
assertless helper in the one s390 path that makes requests without a
hardcoded request.
Cc: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220223165302.3205276-1-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Pull RISC-V fix from Palmer Dabbelt:
- Fix the RISC-V section of the generic CPU idle bindings to comply
with the recently tightened DT schema.
* tag 'riscv-for-linus-5.18-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
dt-bindings: Fix phandle-array issues in the idle-states bindings
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As per 39bd2b6a3783 ("dt-bindings: Improve phandle-array schemas"), the
phandle-array bindings have been disambiguated. This fixes the new
RISC-V idle-states bindings to comply with the schema.
Fixes: 1bd524f7e8d8 ("dt-bindings: Add common bindings for ARM and RISC-V idle states")
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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Pull ksmbd updates from Steve French:
- three cleanup fixes
- shorten module load warning
- two documentation fixes
* tag '5.18-rc-ksmbd-server-fixes' of git://git.samba.org/ksmbd:
ksmbd: replace usage of found with dedicated list iterator variable
ksmbd: Remove a redundant zeroing of memory
MAINTAINERS: ksmbd: switch Sergey to reviewer
ksmbd: shorten experimental warning on loading the module
ksmbd: use netif_is_bridge_port
Documentation: ksmbd: update Feature Status table
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Pull more filesystem folio updates from Matthew Wilcox:
"A mixture of odd changes that didn't quite make it into the original
pull and fixes for things that did. Also the readpages changes had to
wait for the NFS tree to be pulled first.
- Remove ->readpages infrastructure
- Remove AOP_FLAG_CONT_EXPAND
- Move read_descriptor_t to networking code
- Pass the iocb to generic_perform_write
- Minor updates to iomap, btrfs, ext4, f2fs, ntfs"
* tag 'folio-5.18d' of git://git.infradead.org/users/willy/pagecache:
btrfs: Remove a use of PAGE_SIZE in btrfs_invalidate_folio()
ntfs: Correct mark_ntfs_record_dirty() folio conversion
f2fs: Get the superblock from the mapping instead of the page
f2fs: Correct f2fs_dirty_data_folio() conversion
ext4: Correct ext4_journalled_dirty_folio() conversion
filemap: Remove AOP_FLAG_CONT_EXPAND
fs: Pass an iocb to generic_perform_write()
fs, net: Move read_descriptor_t to net.h
fs: Remove read_actor_t
iomap: Simplify is_partially_uptodate a little
readahead: Update comments
mm: remove the skip_page argument to read_pages
mm: remove the pages argument to read_pages
fs: Remove ->readpages address space operation
readahead: Remove read_cache_pages()
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Pull XArray updates from Matthew Wilcox:
- Documentation update
- Fix test-suite build after move of bitmap.h
- Fix xas_create_range() when a large entry is already present
- Fix xas_split() of a shadow entry
* tag 'xarray-5.18' of git://git.infradead.org/users/willy/xarray:
XArray: Update the LRU list in xas_split()
XArray: Fix xas_create_range() when multi-order entry present
XArray: Include bitmap.h from xarray.h
XArray: Document the locking requirement for the xa_state
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Pull more RISC-V updates from Palmer Dabbelt:
"This has a handful of new features:
- Support for CURRENT_STACK_POINTER, which enables some extra stack
debugging for HARDENED_USERCOPY.
- Support for the new SBI CPU idle extension, via cpuidle and suspend
drivers.
- Profiling has been enabled in the defconfigs.
but is mostly fixes and cleanups"
* tag 'riscv-for-linus-5.18-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (21 commits)
RISC-V: K210 defconfigs: Drop redundant MEMBARRIER=n
RISC-V: defconfig: Drop redundant SBI HVC and earlycon
Documentation: riscv: remove non-existent directory from table of contents
riscv: cpu.c: don't use kernel-doc markers for comments
RISC-V: Enable profiling by default
RISC-V: module: fix apply_r_riscv_rcv_branch_rela typo
RISC-V: Declare per cpu boot data as static
RISC-V: Fix a comment typo in riscv_of_parent_hartid()
riscv: Increase stack size under KASAN
riscv: Fix fill_callchain return value
riscv: dts: canaan: Fix SPI3 bus width
riscv: Rename "sp_in_global" to "current_stack_pointer"
riscv module: remove (NOLOAD)
RISC-V: Enable RISC-V SBI CPU Idle driver for QEMU virt machine
dt-bindings: Add common bindings for ARM and RISC-V idle states
cpuidle: Add RISC-V SBI CPU idle driver
cpuidle: Factor-out power domain related code from PSCI domain driver
RISC-V: Add SBI HSM suspend related defines
RISC-V: Add arch functions for non-retentive suspend entry/exit
RISC-V: Rename relocate() and make it global
...
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Merge still more updates from Andrew Morton:
"16 patches.
Subsystems affected by this patch series: ofs2, nilfs2, mailmap, and
mm (madvise, mlock, mfence, memory-failure, kasan, debug, kmemleak,
and damon)"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm/damon: prevent activated scheme from sleeping by deactivated schemes
mm/kmemleak: reset tag when compare object pointer
doc/vm/page_owner.rst: remove content related to -c option
tools/vm/page_owner_sort.c: remove -c option
mm, kasan: fix __GFP_BITS_SHIFT definition breaking LOCKDEP
mm,hwpoison: unmap poisoned page before invalidation
mailmap: update Kirill's email
mm: kfence: fix objcgs vector allocation
mm/munlock: protect the per-CPU pagevec by a local_lock_t
mm/munlock: update Documentation/vm/unevictable-lru.rst
mm/munlock: add lru_add_drain() to fix memcg_stat_test
nilfs2: get rid of nilfs_mapping_init()
nilfs2: fix lockdep warnings during disk space reclamation
nilfs2: fix lockdep warnings in page operations for btree nodes
ocfs2: fix crash when mount with quota enabled
Revert "mm: madvise: skip unmapped vma holes passed to process_madvise"
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-c option has been removed from page_owner_sort.c.
Remove the usage of -c option from Documentation.
This work is coauthored by
Shenghong Han
Yixuan Cao
Chongxi Zhao
Jiajian Ye
Yuhong Feng
Yongqiang Liu
Link: https://lkml.kernel.org/r/20220326085920.1470081-2-zhangyinan2019@email.szu.edu.cn
Signed-off-by: Yinan Zhang <zhangyinan2019@email.szu.edu.cn>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Tang Bin <tangbin@cmss.chinamobile.com>
Cc: Zhenliang Wei <weizhenliang@huawei.com>
Cc: Georgi Djakov <georgi.djakov@linaro.org>
Cc: Chongxi Zhao <zhaochongxi2019@email.szu.edu.cn>
Cc: Jiajian Ye <yejiajian2018@email.szu.edu.cn>
Cc: Yixuan Cao <caoyixuan2019@email.szu.edu.cn>
Cc: Yuhong Feng <yuhongf@szu.edu.cn>
Cc: Yongqiang Liu <liuyongqiang13@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Update Documentation/vm/unevictable-lru.rst to reflect the changes made
by the mm/munlock series: keeping an mlock_count instead of page_mlock()
(formerly try_to_munlock()) and munlock_vma_pages_all() etc. Also make
other little updates or cleanups wherever noticed.
But, I apologize, this is already out of date, in that "folio" appears
nowhere: 5.18 will be in a transitional state from "page" to "folio",
and documenting its current mix of the two does not help to understand
"the Unevictable LRU". Should be revisited when naming is more settled.
Link: https://lkml.kernel.org/r/3753962-d491-bf60-f59f-51bfe84fd6a0@google.com
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: David Hildenbrand <david@redhat.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Yu Zhao <yuzhao@google.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Shakeel Butt <shakeelb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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All filesystems have now been converted to use ->readahead, so
remove the ->readpages operation and fix all the comments that
used to refer to it.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
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Pull input updates from Dmitry Torokhov:
- a revert of a patch resetting extra buttons on touchpads claiming to
be buttonpads as this caused regression on certain Dell devices
- a new driver for Mediatek MT6779 keypad
- a new driver for Imagis touchscreen
- rework of Google/Chrome OS "Vivaldi" keyboard handling
- assorted driver fixes.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (31 commits)
Revert "Input: clear BTN_RIGHT/MIDDLE on buttonpads"
Input: adi - remove redundant variable z
Input: add Imagis touchscreen driver
dt-bindings: input/touchscreen: bindings for Imagis
Input: synaptics - enable InterTouch on ThinkPad T14/P14s Gen 1 AMD
Input: stmfts - fix reference leak in stmfts_input_open
Input: add bounds checking to input_set_capability()
Input: iqs5xx - use local input_dev pointer
HID: google: modify HID device groups of eel
HID: google: Add support for vivaldi to hid-hammer
HID: google: extract Vivaldi hid feature mapping for use in hid-hammer
Input: extract ChromeOS vivaldi physmap show function
HID: google: switch to devm when registering keyboard backlight LED
Input: mt6779-keypad - fix signedness bug
Input: mt6779-keypad - add MediaTek keypad driver
dt-bindings: input: Add bindings for Mediatek matrix keypad
Input: da9063 - use devm_delayed_work_autocancel()
Input: goodix - fix race on driver unbind
Input: goodix - use input_copy_abs() helper
Input: add input_copy_abs() function
...
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Pull RTC updates from Alexandre Belloni:
"The bulk of the patches are about replacing the uie_unsupported struct
rtc_device member by a feature bit.
Subsystem:
- remove uie_unsupported, all users have been converted to clear
RTC_FEATURE_UPDATE_INTERRUPT and provide a reason
- RTCs with an alarm with a resolution of a minute are now letting
the core handle rounding down the alarm time
- fix use-after-free on device removal
New driver:
- OP-TEE RTC PTA
Drivers:
- sun6i: Add H616 support
- cmos: Fix the AltCentury for AMD platforms
- spear: set range"
* tag 'rtc-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (56 commits)
rtc: check if __rtc_read_time was successful
rtc: gamecube: Fix refcount leak in gamecube_rtc_read_offset_from_sram
rtc: mc146818-lib: Fix the AltCentury for AMD platforms
rtc: optee: add RTC driver for OP-TEE RTC PTA
rtc: pm8xxx: Return -ENODEV if set_time disallowed
rtc: pm8xxx: Attach wake irq to device
clk: sunxi-ng: sun6i-rtc: include clk/sunxi-ng.h
rtc: remove uie_unsupported
rtc: xgene: stop using uie_unsupported
rtc: hym8563: switch to RTC_FEATURE_UPDATE_INTERRUPT
rtc: hym8563: let the core handle the alarm resolution
rtc: hym8563: switch to devm_rtc_allocate_device
rtc: efi: switch to RTC_FEATURE_UPDATE_INTERRUPT
rtc: efi: switch to devm_rtc_allocate_device
rtc: add new RTC_FEATURE_ALARM_WAKEUP_ONLY feature
rtc: spear: fix spear_rtc_read_time
rtc: spear: drop uie_unsupported
rtc: spear: set range
rtc: spear: switch to devm_rtc_allocate_device
rtc: pcf8563: switch to RTC_FEATURE_UPDATE_INTERRUPT
...
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This subdir no longer exists: it was there to document some of the
quirks and paths forward for handling them, but those have been dealt
with as of Atish's recent patch set.
Fixes: 23b1f18326ec ("Documentation: riscv: Remove the old documentation")
Link: https://lore.kernel.org/linux-next/20220329133412.591d6882@canb.auug.org.au/
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
[Palmer: commit text]
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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Pull UML updates from Richard Weinberger:
- Devicetree support (for testing)
- Various cleanups and fixes: UBD, port_user, uml_mconsole
- Maintainer update
* tag 'for-linus-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
um: run_helper: Write error message to kernel log on exec failure on host
um: port_user: Improve error handling when port-helper is not found
um: port_user: Allow setting path to port-helper using UML_PORT_HELPER envvar
um: port_user: Search for in.telnetd in PATH
um: clang: Strip out -mno-global-merge from USER_CFLAGS
docs: UML: Mention telnetd for port channel
um: Remove unused timeval_to_ns() function
um: Fix uml_mconsole stop/go
um: Cleanup syscall_handler_t definition/cast, fix warning
uml: net: vector: fix const issue
um: Fix WRITE_ZEROES in the UBD Driver
um: Migrate vector drivers to NAPI
um: Fix order of dtb unflatten/early init
um: fix and optimize xor select template for CONFIG64 and timetravel mode
um: Document dtb command line option
lib/logic_iomem: correct fallback config references
um: Remove duplicated include in syscalls_64.c
MAINTAINERS: Update UserModeLinux entry
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Pull netfs updates from David Howells:
"Netfs prep for write helpers.
Having had a go at implementing write helpers and content encryption
support in netfslib, it seems that the netfs_read_{,sub}request
structs and the equivalent write request structs were almost the same
and so should be merged, thereby requiring only one set of
alloc/get/put functions and a common set of tracepoints.
Merging the structs also has the advantage that if a bounce buffer is
added to the request struct, a read operation can be performed to fill
the bounce buffer, the contents of the buffer can be modified and then
a write operation can be performed on it to send the data wherever it
needs to go using the same request structure all the way through. The
I/O handlers would then transparently perform any required crypto.
This should make it easier to perform RMW cycles if needed.
The potentially common functions and structs, however, by their names
all proclaim themselves to be associated with the read side of things.
The bulk of these changes alter this in the following ways:
- Rename struct netfs_read_{,sub}request to netfs_io_{,sub}request.
- Rename some enums, members and flags to make them more appropriate.
- Adjust some comments to match.
- Drop "read"/"rreq" from the names of common functions. For
instance, netfs_get_read_request() becomes netfs_get_request().
- The ->init_rreq() and ->issue_op() methods become ->init_request()
and ->issue_read(). I've kept the latter as a read-specific
function and in another branch added an ->issue_write() method.
The driver source is then reorganised into a number of files:
fs/netfs/buffered_read.c Create read reqs to the pagecache
fs/netfs/io.c Dispatchers for read and write reqs
fs/netfs/main.c Some general miscellaneous bits
fs/netfs/objects.c Alloc, get and put functions
fs/netfs/stats.c Optional procfs statistics.
and future development can be fitted into this scheme, e.g.:
fs/netfs/buffered_write.c Modify the pagecache
fs/netfs/buffered_flush.c Writeback from the pagecache
fs/netfs/direct_read.c DIO read support
fs/netfs/direct_write.c DIO write support
fs/netfs/unbuffered_write.c Write modifications directly back
Beyond the above changes, there are also some changes that affect how
things work:
- Make fscache_end_operation() generally available.
- In the netfs tracing header, generate enums from the symbol ->
string mapping tables rather than manually coding them.
- Add a struct for filesystems that uses netfslib to put into their
inode wrapper structs to hold extra state that netfslib is
interested in, such as the fscache cookie. This allows netfslib
functions to be set in filesystem operation tables and jumped to
directly without having to have a filesystem wrapper.
- Add a member to the struct added above to track the remote inode
length as that may differ if local modifications are buffered. We
may need to supply an appropriate EOF pointer when storing data (in
AFS for example).
- Pass extra information to netfs_alloc_request() so that the
->init_request() hook can access it and retain information to
indicate the origin of the operation.
- Make the ->init_request() hook return an error, thereby allowing a
filesystem that isn't allowed to cache an inode (ceph or cifs, for
example) to skip readahead.
- Switch to using refcount_t for subrequests and add tracepoints to
log refcount changes for the request and subrequest structs.
- Add a function to consolidate dispatching a read request. Similar
code is used in three places and another couple are likely to be
added in the future"
Link: https://lore.kernel.org/all/2639515.1648483225@warthog.procyon.org.uk/
* tag 'netfs-prep-20220318' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
afs: Maintain netfs_i_context::remote_i_size
netfs: Keep track of the actual remote file size
netfs: Split some core bits out into their own file
netfs: Split fs/netfs/read_helper.c
netfs: Rename read_helper.c to io.c
netfs: Prepare to split read_helper.c
netfs: Add a function to consolidate beginning a read
netfs: Add a netfs inode context
ceph: Make ceph_init_request() check caps on readahead
netfs: Change ->init_request() to return an error code
netfs: Refactor arguments for netfs_alloc_read_request
netfs: Adjust the netfs_failure tracepoint to indicate non-subreq lines
netfs: Trace refcounting on the netfs_io_subrequest struct
netfs: Trace refcounting on the netfs_io_request struct
netfs: Adjust the netfs_rreq tracepoint slightly
netfs: Split netfs_io_* object handling out
netfs: Finish off rename of netfs_read_request to netfs_io_request
netfs: Rename netfs_read_*request to netfs_io_*request
netfs: Generate enums from trace symbol mapping lists
fscache: export fscache_end_operation()
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Pull random number generator fixes from Jason Donenfeld:
- If a hardware random number generator passes a sufficiently large
chunk of entropy to random.c during early boot, we now skip the
"fast_init" business and let it initialize the RNG.
This makes CONFIG_RANDOM_TRUST_BOOTLOADER=y actually useful.
- We already have the command line `random.trust_cpu=0/1` option for
RDRAND, which let distros enable CONFIG_RANDOM_TRUST_CPU=y while
placating concerns of more paranoid users.
Now we add `random.trust_bootloader=0/1` so that distros can
similarly enable CONFIG_RANDOM_TRUST_BOOTLOADER=y.
- Re-add a comment that got removed by accident in the recent revert.
- Add the spec-compliant ACPI CID for vmgenid, which Microsoft added to
the vmgenid spec at Ard's request during earlier review.
- Restore build-time randomness via the latent entropy plugin, which
was lost when we transitioned to using a hash function.
* tag 'random-5.18-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
random: mix build-time latent entropy into pool at init
virt: vmgenid: recognize new CID added by Hyper-V
random: re-add removed comment about get_random_{u32,u64} reseeding
random: treat bootloader trust toggle the same way as cpu trust toggle
random: skip fast_init if hwrng provides large chunk of entropy
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Pull watchdog updates from Wim Van Sebroeck:
- add support for BCM4908
- renesas_wdt: add R-Car Gen4 support
- improve watchdog_dev function documentation
- sp5100_tco: replace the cd6h/cd7h port I/O with MMIO accesses during
initialization
- several other small improvements and fixes
* tag 'linux-watchdog-5.18-rc1' of git://www.linux-watchdog.org/linux-watchdog:
Watchdog: sp5100_tco: Enable Family 17h+ CPUs
Watchdog: sp5100_tco: Add initialization using EFCH MMIO
Watchdog: sp5100_tco: Refactor MMIO base address initialization
Watchdog: sp5100_tco: Move timer initialization into function
watchdog: ixp4xx: Implement restart
watchdog: orion_wdt: support pretimeout on Armada-XP
watchdog: allow building BCM7038_WDT for BCM4908
watchdog: renesas_wdt: Add R-Car Gen4 support
dt-bindings: watchdog: renesas-wdt: Document r8a779f0 support
watchdog: Improve watchdog_dev function documentation
watchdog: aspeed: add nowayout support
watchdog: rti-wdt: Add missing pm_runtime_disable() in probe function
watchdog: imx2_wdg: Alow ping on suspend
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Pull more documentation updates from Jonathan Corbet:
"Some late-arriving documentation improvements.
This is mostly build-system fixes from Mauro and Akira; I also took
the liberty of dropping in my 'messy diffstat' document"
* tag 'docs-5.18-2' of git://git.lwn.net/linux:
docs: Add a document on how to fix a messy diffstat
docs: sphinx/requirements: Limit jinja2<3.1
Documentation: kunit: Fix cross-referencing warnings
scripts/kernel-doc: change the line number meta info
scripts/get_abi: change the file/line number meta info
docs: kernel_include.py: add sphinx build dependencies
docs: kernel_abi.py: add sphinx build dependencies
docs: kernel_feat.py: add build dependencies
scripts/get_feat.pl: allow output the parsed file names
docs: kfigure.py: Don't warn of missing PDF converter in 'make htmldocs'
Documentation: Fix duplicate statement about raw_spinlock_t type
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Pull Kbuild updates from Masahiro Yamada:
- Add new environment variables, USERCFLAGS and USERLDFLAGS to allow
additional flags to be passed to user-space programs.
- Fix missing fflush() bugs in Kconfig and fixdep
- Fix a minor bug in the comment format of the .config file
- Make kallsyms ignore llvm's local labels, .L*
- Fix UAPI compile-test for cross-compiling with Clang
- Extend the LLVM= syntax to support LLVM=<suffix> form for using a
particular version of LLVm, and LLVM=<prefix> form for using custom
LLVM in a particular directory path.
- Clean up Makefiles
* tag 'kbuild-v5.18-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: Make $(LLVM) more flexible
kbuild: add --target to correctly cross-compile UAPI headers with Clang
fixdep: use fflush() and ferror() to ensure successful write to files
arch: syscalls: simplify uapi/kapi directory creation
usr/include: replace extra-y with always-y
certs: simplify empty certs creation in certs/Makefile
certs: include certs/signing_key.x509 unconditionally
kallsyms: ignore all local labels prefixed by '.L'
kconfig: fix missing '# end of' for empty menu
kconfig: add fflush() before ferror() check
kbuild: replace $(if A,A,B) with $(or A,B)
kbuild: Add environment variables for userprogs flags
kbuild: unify cmd_copy and cmd_shipped
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Pull more networking updates from Jakub Kicinski:
"Networking fixes and rethook patches.
Features:
- kprobes: rethook: x86: replace kretprobe trampoline with rethook
Current release - regressions:
- sfc: avoid null-deref on systems without NUMA awareness in the new
queue sizing code
Current release - new code bugs:
- vxlan: do not feed vxlan_vnifilter_dump_dev with non-vxlan devices
- eth: lan966x: fix null-deref on PHY pointer in timestamp ioctl when
interface is down
Previous releases - always broken:
- openvswitch: correct neighbor discovery target mask field in the
flow dump
- wireguard: ignore v6 endpoints when ipv6 is disabled and fix a leak
- rxrpc: fix call timer start racing with call destruction
- rxrpc: fix null-deref when security type is rxrpc_no_security
- can: fix UAF bugs around echo skbs in multiple drivers
Misc:
- docs: move netdev-FAQ to the 'process' section of the
documentation"
* tag 'net-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (57 commits)
vxlan: do not feed vxlan_vnifilter_dump_dev with non vxlan devices
openvswitch: Add recirc_id to recirc warning
rxrpc: fix some null-ptr-deref bugs in server_key.c
rxrpc: Fix call timer start racing with call destruction
net: hns3: fix software vlan talbe of vlan 0 inconsistent with hardware
net: hns3: fix the concurrency between functions reading debugfs
docs: netdev: move the netdev-FAQ to the process pages
docs: netdev: broaden the new vs old code formatting guidelines
docs: netdev: call out the merge window in tag checking
docs: netdev: add missing back ticks
docs: netdev: make the testing requirement more stringent
docs: netdev: add a question about re-posting frequency
docs: netdev: rephrase the 'should I update patchwork' question
docs: netdev: rephrase the 'Under review' question
docs: netdev: shorten the name and mention msgid for patch status
docs: netdev: note that RFC postings are allowed any time
docs: netdev: turn the net-next closed into a Warning
docs: netdev: move the patch marking section up
docs: netdev: minor reword
docs: netdev: replace references to old archives
...
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The documentation for the tip tree is really in quite a similar
spirit to the netdev-FAQ. Move the netdev-FAQ to the process docs
as well.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Convert the "should I use new or old comment formatting" to cover
all formatting. This makes the question itself shorter.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Add the most important case to the question about "where are we
in the cycle" - the case of net-next being closed.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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I think double back ticks are more correct. Add where they are missing.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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These days we often ask for selftests so let's update our
testing requirements.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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We have to tell people to stop reposting to often lately,
or not to repost while the discussion is ongoing.
Document this.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Make the question shorter and adjust the start of the answer accordingly.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The semantics of "Under review" have shifted. Reword the question
about it a bit and focus it on the response time.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Cut down the length of the question so it renders better in docs.
Mention that Message-ID can be used to search patchwork.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Document that RFCs are allowed during the merge window.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Use the sphinx Warning box to make the net-next being closed
stand out more.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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We want people to mark their patches with net and net-next in the subject.
Many miss doing that. Move the FAQ section which points that out up, and
place it after the section which enumerates the trees, that seems like
a pretty logical place for it. Since the two sections are together we
can remove a little bit (not too much) of the repetition.
v2: also remove the text for non-git setups, we want people to use git.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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that -> those
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Most people use (or should use) lore at this point.
Replace the pointers to older archiving systems.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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The LLVM make variable allows a developer to quickly switch between the
GNU and LLVM tools. However, it does not handle versioned binaries, such
as the ones shipped by Debian, as LLVM=1 just defines the tool variables
with the unversioned binaries.
There was some discussion during the review of the patch that introduces
LLVM=1 around versioned binaries, ultimately coming to the conclusion
that developers can just add the folder that contains the unversioned
binaries to their PATH, as Debian's versioned suffixed binaries are
really just symlinks to the unversioned binaries in /usr/lib/llvm-#/bin:
$ realpath /usr/bin/clang-14
/usr/lib/llvm-14/bin/clang
$ PATH=/usr/lib/llvm-14/bin:$PATH make ... LLVM=1
However, that can be cumbersome to developers who are constantly testing
series with different toolchains and versions. It is simple enough to
support these versioned binaries directly in the Kbuild system by
allowing the developer to specify the version suffix with LLVM=, which
is shorter than the above suggestion:
$ make ... LLVM=-14
It does not change the meaning of LLVM=1 (which will continue to use
unversioned binaries) and it does not add too much additional complexity
to the existing $(LLVM) code, while allowing developers to quickly test
their series with different versions of the whole LLVM suite of tools.
Some developers may build LLVM from source but not add the binaries to
their PATH, as they may not want to use that toolchain systemwide.
Support those developers by allowing them to supply the directory that
the LLVM tools are available in, as it is no more complex to support
than the version suffix change above.
$ make ... LLVM=/path/to/llvm/
Update and reorder the documentation to reflect these new additions.
At the same time, notate that LLVM=0 is not the same as just omitting it
altogether, which has confused people in the past.
Link: https://lore.kernel.org/r/20200317215515.226917-1-ndesaulniers@google.com/
Link: https://lore.kernel.org/r/20220224151322.072632223@infradead.org/
Suggested-by: Masahiro Yamada <masahiroy@kernel.org>
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
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This series adds RISC-V CPU Idle support using SBI HSM suspend function.
The RISC-V SBI CPU idle driver added by this series is highly inspired
from the ARM PSCI CPU idle driver.
Special thanks Sandeep Tripathy for providing early feeback on SBI HSM
support in all above projects (RISC-V SBI specification, OpenSBI, and
Linux RISC-V).
* palmer/riscv-idle:
RISC-V: Enable RISC-V SBI CPU Idle driver for QEMU virt machine
dt-bindings: Add common bindings for ARM and RISC-V idle states
cpuidle: Add RISC-V SBI CPU idle driver
cpuidle: Factor-out power domain related code from PSCI domain driver
RISC-V: Add SBI HSM suspend related defines
RISC-V: Add arch functions for non-retentive suspend entry/exit
RISC-V: Rename relocate() and make it global
RISC-V: Enable CPU_IDLE drivers
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A branch with merges in will sometimes create a diffstat containing a lot
of unrelated work at "git request-pull" time. Create a document based on
Linus's advice (found in the links below) and add it to the maintainer
manual in the hope of saving some wear on Linus's keyboard going forward.
Link: https://lore.kernel.org/lkml/CAHk-=wg3wXH2JNxkQi+eLZkpuxqV+wPiHhw_Jf7ViH33Sw7PHA@mail.gmail.com/
Link: https://lore.kernel.org/lkml/CAHk-=wgXbSa8yq8Dht8at+gxb_idnJ7X5qWZQWRBN4_CUPr=eQ@mail.gmail.com/
Acked-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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jinja2 release 3.1.0 (March 24, 2022) broke Sphinx<4.0.
This looks like the result of deprecating Python 3.6.
It has been tested against Sphinx 4.3.0 and later.
Setting an upper limit of <3.1 to junja2 can unbreak Sphinx<4.0
including Sphinx 2.4.4.
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/7dbff8a0-f4ff-34a0-71c7-1987baf471f9@gmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Pull pwm updates from Thierry Reding:
"This contains conversions of some more drivers to the atomic API as
well as the addition of new chip support for some existing drivers.
There are also various minor fixes and cleanups across the board, from
drivers to device tree bindings"
* tag 'pwm/for-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm: (45 commits)
pwm: rcar: Simplify multiplication/shift logic
dt-bindings: pwm: renesas,tpu: Do not require pwm-cells twice
dt-bindings: pwm: tiehrpwm: Do not require pwm-cells twice
dt-bindings: pwm: tiecap: Do not require pwm-cells twice
dt-bindings: pwm: samsung: Do not require pwm-cells twice
dt-bindings: pwm: intel,keembay: Do not require pwm-cells twice
dt-bindings: pwm: brcm,bcm7038: Do not require pwm-cells twice
dt-bindings: pwm: toshiba,visconti: Include generic PWM schema
dt-bindings: pwm: renesas,pwm: Include generic PWM schema
dt-bindings: pwm: sifive: Include generic PWM schema
dt-bindings: pwm: rockchip: Include generic PWM schema
dt-bindings: pwm: mxs: Include generic PWM schema
dt-bindings: pwm: iqs620a: Include generic PWM schema
dt-bindings: pwm: intel,lgm: Include generic PWM schema
dt-bindings: pwm: imx: Include generic PWM schema
dt-bindings: pwm: allwinner,sun4i-a10: Include generic PWM schema
pwm: pwm-mediatek: Beautify error messages text
pwm: pwm-mediatek: Allocate clk_pwms with devm_kmalloc_array
pwm: pwm-mediatek: Simplify error handling with dev_err_probe()
pwm: brcmstb: Remove useless locking
...
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Pull dmaengine updates from Vinod Koul:
"This time we have bunch of driver updates and some new device support.
New support:
- Document RZ/V2L and RZ/G2UL dma binding
- TI AM62x k3-udma and k3-psil support
Updates:
- Yaml conversion for Mediatek uart apdma schema
- Removal of DMA-32 fallback configuration for various drivers
- imx-sdma updates for channel restart"
* tag 'dmaengine-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (23 commits)
dmaengine: hisi_dma: fix MSI allocate fail when reload hisi_dma
dmaengine: dw-axi-dmac: cleanup comments
dmaengine: fsl-dpaa2-qdma: Drop comma after SoC match table sentinel
dt-bindings: dma: Convert mtk-uart-apdma to DT schema
dmaengine: ppc4xx: Make use of the helper macro LIST_HEAD()
dmaengine: idxd: Remove useless DMA-32 fallback configuration
dmaengine: qcom_hidma: Remove useless DMA-32 fallback configuration
dmaengine: sh: Kconfig: Add ARCH_R9A07G054 dependency for RZ_DMAC config option
dmaengine: ti: k3-psil: Add AM62x PSIL and PDMA data
dmaengine: ti: k3-udma: Add AM62x DMSS support
dmaengine: ti: cleanup comments
dmaengine: imx-sdma: clean up some inconsistent indenting
dmaengine: Revert "dmaengine: shdma: Fix runtime PM imbalance on error"
dmaengine: idxd: restore traffic class defaults after wq reset
dmaengine: altera-msgdma: Remove useless DMA-32 fallback configuration
dmaengine: stm32-dma: set dma_device max_sg_burst
dmaengine: imx-sdma: fix cyclic buffer race condition
dmaengine: imx-sdma: restart cyclic channel if needed
dmaengine: iot: Remove useless DMA-32 fallback configuration
dmaengine: ptdma: handle the cases based on DMA is complete
...
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Pull remoteproc updates from Bjorn Andersson:
"In the remoteproc core, it's now possible to mark the sysfs attributes
read only on a per-instance basis, which is then used by the TI wkup
M3 driver.
Also, the rproc_shutdown() interface propagates errors to the caller
and an array underflow is fixed in the debugfs interface. The
rproc_da_to_va() API is moved to the public API to allow e.g. child
rpmsg devices to acquire pointers to memory shared with the remote
processor.
The TI K3 R5F and DSP drivers gains support for attaching to instances
already started by the bootloader, aka IPC-only mode.
The Mediatek remoteproc driver gains support for the MT8186 SCP. The
driver's probe function is reordered and moved to use the devres
version of rproc_alloc() to save a few gotos. The driver's probe
function is also transitioned to use dev_err_probe() to provide better
debug support.
Support for the Qualcomm SC7280 Wireless Subsystem (WPSS) is
introduced. The Hexagon based remoteproc drivers gains support for
voting for interconnect bandwidth during launch of the remote
processor. The modem subsystem (MSS) driver gains support for probing
the BAM-DMUX driver, which provides the network interface towards the
modem on a set of older Qualcomm platforms. In addition a number a bug
fixes are introduces in the Qualcomm drivers.
Lastly Qualcomm ADSP DeviceTree binding is converted to YAML format,
to allow validation of DeviceTree source files"
* tag 'rproc-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux: (22 commits)
remoteproc: qcom_q6v5_mss: Create platform device for BAM-DMUX
remoteproc: qcom: q6v5_wpss: Add support for sc7280 WPSS
dt-bindings: remoteproc: qcom: Add SC7280 WPSS support
dt-bindings: remoteproc: qcom: adsp: Convert binding to YAML
remoteproc: k3-dsp: Add support for IPC-only mode for all K3 DSPs
remoteproc: k3-dsp: Refactor mbox request code in start
remoteproc: k3-r5: Add support for IPC-only mode for all R5Fs
remoteproc: k3-r5: Refactor mbox request code in start
remoteproc: Change rproc_shutdown() to return a status
remoteproc: qcom: q6v5: Add interconnect path proxy vote
remoteproc: mediatek: Support mt8186 scp
dt-bindings: remoteproc: mediatek: Add binding for mt8186 scp
remoteproc: qcom_q6v5_mss: Fix some leaks in q6v5_alloc_memory_region
remoteproc: qcom_wcnss: Add missing of_node_put() in wcnss_alloc_memory_region
remoteproc: qcom: Fix missing of_node_put in adsp_alloc_memory_region
remoteproc: move rproc_da_to_va declaration to remoteproc.h
remoteproc: wkup_m3: Set sysfs_read_only flag
remoteproc: Introduce sysfs_read_only flag
remoteproc: Fix count check in rproc_coredump_write()
remoteproc: mtk_scp: Use dev_err_probe() where possible
...
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Pull hwspinlock updates from Bjorn Andersson:
"This updates sprd and srm32 drivers to use struct_size() instead of
their open-coded equivalents. It also cleans up the omap dt-bindings
example"
* tag 'hwlock-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux:
hwspinlock: sprd: Use struct_size() helper in devm_kzalloc()
hwspinlock: stm32: Use struct_size() helper in devm_kzalloc()
dt-bindings: hwlock: omap: Remove redundant binding example
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Linus Torvalds
Beau Belgrave
Paolo Bonzini
David Woodhouse
Sean Christopherson
Palmer Dabbelt
Yinan Zhang
Hugh Dickins
Matthew Wilcox (Oracle)
Bagas Sanjaya
Jakub Kicinski
Nathan Chancellor
Jonathan Corbet
Akira Yokosawa