[MC/DC] Refactor MCDC::State::Decision. NFC. (#125408)
Introduce `ID` and `InvalidID`. Then `DecisionByStmt` can have three
states.
* Not assigned if the Stmt(Expr) doesn't exist.
* When `DecisionByStmt[Expr]` exists:
* Invalid and should be ignored if `ID == Invalid`.
* Valid if `ID != Invalid`. Other member will be filled in the Mapper.
Thread Safety Analysis: Add test for guarded member initialization pattern in C (#175267)
A common problem in C code with guarded members is object construction,
where it should be allowed to initialize guarded members without holding
a capability (which itself requires initialization).
One potential pattern to solve this is "init with reentrant assert"
followed by member initialization. The pattern assumes that capability
objects themselves have an init function, which then asserts the
capability as held. To permit immediate use of the capability, we have
to cast to any reentrant capability.
The current implementation of reentrant capability supports this pattern
as-is: Casting to ReentrantMutex works because the analysis determines
if a held lock is reentrant based on the type used when the lock was
added to the fact set. Since the assertion uses the reentrant type, the
analysis records that the lock is reentrant. When the subsequent
mutex_exclusive_lock() occurs, the analyzer checks the properties of the
already held lock; finding it marked as reentrant, it allows the
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[Coverage] Sort `MCDCRecord::ExecVectors` order by Bitmap index (#121195)
This makes easier to merge `MCDCRecord`s in later stages.
Depends on: #110966, #121188, #121190
Merge tag 'block-6.19-20260109' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block fixes from Jens Axboe:
- Kill unlikely checks for blk-rq-qos. These checks are really
all-or-nothing, either the branch is taken all the time, or it's not.
Depending on the configuration, either one of those cases may be
true. Just remove the annotation
- Fix for merging bios with different app tags set
- Fix for a recently introduced slowdown due to RCU synchronization
- Fix for a status change on loop while it's in use, and then a later
fix for that fix
- Fix for the async partition scanning in ublk
* tag 'block-6.19-20260109' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
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LLVMCoverage: Unify getCoverageForFile and getCoverageForFunction. NFC (#120842)
Since #119952, `getCoverageForFile` and `getCoverageForFunction` have
similar structure each other. Ther merged method `addFunctionRegions`
has two lambda subfunctions.
* `getCoverageForFile`
- `MainFileID` may be `nullopt`.
- `shouldProcess` picks up relevant records along `FileIDs` that is
scanned based on `MainFileID`. They may have expanded source files.
- `shouldExpand` takes the presense of `MainFileID` into account.
* `getCoverageForFunction`
- This assumes the presense of `MainFileID`.
- `shouldProcess` picks up records that belong only to `MainFileID`.
- `shouldExpand` assumes the presense of `MainFileID`.
This change introduces a wrapper class `MergeableCoverageData` for
further merging instances. At the moment, this returns `CoverageData`
including `buildSegments()`.
This change itself is NFC.
Merge tag 'io_uring-6.19-20260109' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring fixes from Jens Axboe:
"A single fix for a regression introduced in 6.15, where a failure to
wake up idle io-wq workers at ring exit will wait for the timeout to
expire.
This isn't normally noticeable, as the exit is async.
But if a parent task created a thread that sets up a ring and uses
requests that cause io-wq threads to be created, and the parent task
then waits for the thread to exit, then it can take 5 seconds for that
pthread_join() to succeed as the child thread is waiting for its
children to exit.
On top of that, just a basic cleanup as well"
* tag 'io_uring-6.19-20260109' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring/io-wq: remove io_wq_for_each_worker() return value
io_uring/io-wq: fix incorrect io_wq_for_each_worker() termination logic
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- Do not return false if !preemptible() in current_in_efi(). EFI
runtime services can now run with preemption enabled
- Fix uninitialised variable in the arm MPAM driver, reported by sparse
- Fix partial kasan_reset_tag() use in change_memory_common() when
calculating page indices or comparing ranges
- Save/restore TCR2_EL1 during suspend/resume, otherwise the E0POE bit
is lost
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Fix cleared E0POE bit after cpu_suspend()/resume()
arm64: mm: Fix incomplete tag reset in change_memory_common()
arm_mpam: Stop using uninitialized variables in __ris_msmon_read()
arm64/efi: Don't fail check current_in_efi() if preemptible
Merge tag 'soc-fixes-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC fixes from Arnd Bergmann:
"The main code change is a revert of the Raspberry Pi RP1 overlay
support that was decided to not be ready.
The other fixes are all for devicetree sources:
- ethernet configuration on ixp42x-actiontec-mi424wr is board
revision specific
- validation warning fixes for imx27/imx51/imx6, hikey960 and k3
- Minor corrections across imx8 boards, addressing all types of
issues with interrups, dma, ethernet and clock settings, all simple
one-line changes"
* tag 'soc-fixes-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (25 commits)
arm64: dts: hisilicon: hikey960: Drop "snps,gctl-reset-quirk" and "snps,tx_de_emphasis*" properties
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[mlir][Bytecode] Fix infinite loop by tracking type/attribute in deferred worklist (#174874)
The bytecode reader could enter an infinite loop when parsing deeply
nested attributes containing type references. The deferred worklist
stored only indices without distinguishing between attributes and types,
causing type indexes to be misinterpreted as attributes.
This patch changes the deferred worklist to store pairs of (index, kind)
to track whether each deferred entry is a type or attribute. The
worklist processing logic is updated to resolve the correct entry type.
Merge tag 'ceph-for-6.19-rc5' of https://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"A bunch of libceph fixes split evenly between memory safety and
implementation correctness issues (all marked for stable) and a change
in maintainers for CephFS: Slava and Alex have formally taken over
Xiubo's role"
* tag 'ceph-for-6.19-rc5' of https://github.com/ceph/ceph-client:
libceph: make calc_target() set t->paused, not just clear it
libceph: reset sparse-read state in osd_fault()
libceph: return the handler error from mon_handle_auth_done()
libceph: make free_choose_arg_map() resilient to partial allocation
ceph: update co-maintainers list in MAINTAINERS
libceph: replace overzealous BUG_ON in osdmap_apply_incremental()
libceph: prevent potential out-of-bounds reads in handle_auth_done()
[Coverage] Make additional counters available for BranchRegion. NFC. (#120930)
`getBranchCounterPair()` allocates an additional Counter to SkipPath in
`SingleByteCoverage`.
`IsCounterEqual()` calculates the comparison with rewinding counter
replacements.
`NumRegionCounters` is updated to take additional counters in account.
`incrementProfileCounter()` has a few additiona arguments.
- `UseSkipPath=true`, to specify setting counters for SkipPath. It
assumes `UseSkipPath=false` is used together.
- `UseBoth` may be specified for marking another path. It introduces the
same effect as issueing `markStmtAsUsed(!SkipPath, S)`.
`llvm-cov` discovers counters in `FalseCount` to allocate `MaxCounterID`
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[CFIInserter] Improve `CSRSavedLocation` struct. (#168869)
(1) Define `CSRSavedLocation::Kind` and use it in the code. This makes
the code more readable and allows to extend it to new kinds. For
example, soon I want to add "scalable offset from a given register"
kind.
(2) Store the contents in a union. This should reduce memory usage.
Rename wasm32-wasi to wasm32-wasip1. (#165345)
This adds code to recognize "wasm32-wasip1", "wasm32-wasip2", and
"wasm32-wasip3" as explicit targets, and adds a deprecation warning when
the "wasm32-wasi" target is used, pointing users to the "wasm32-wasip1"
target.
Fixes #165344.
I'm filing this as a draft PR for now, as I've only just now proposed to
make this change in #165344.
[clang-doc] Move navbar and sidebar into normal document flow (#175110)
The navbar and sidebar caused spacing and alignment issues since they
were fixed elements with defined height/width. It was difficult to have
all elements below them correctly offset the height. This patch changes
them
to sticky elements within the normal document flow that don't define
their
height/width explicitly. This actually lets us use existing HTML/CSS
properties (like the "content" div) more naturally.
This also changes the navbar behavior to not follow while scrolling.
