This has no behavioural change, but is good for maintainability. With
`quote!`, we're no longer using string templates, so we don't need to
quote " and {} inside the template anymore. Further more, editors can
now highlight the code template.
This also improves the robustness as it eliminates the need for string
quoting and escaping.
Co-developed-by: Benno Lossin <lossin@kernel.org>
Signed-off-by: Benno Lossin <lossin@kernel.org>
Signed-off-by: Gary Guo <gary@garyguo.net>
Link: https://patch.msgid.link/20260112170919.1888584-6-gary@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
With `syn` being available in the kernel, use it to parse the complex
custom `module!` macro to replace existing helpers. Only parsing is
changed in this commit, the code generation is untouched.
This has the benefit of better error message when the macro is used
incorrectly, as it can point to a concrete span on what's going wrong.
For example, if a field is specified twice, previously it reads:
error: proc macro panicked
--> samples/rust/rust_minimal.rs:7:1
|
7 | / module! {
8 | | type: RustMinimal,
9 | | name: "rust_minimal",
10 | | author: "Rust for Linux Contributors",
11 | | description: "Rust minimal sample",
12 | | license: "GPL",
13 | | license: "GPL",
14 | | }
| |_^
|
= help: message: Duplicated key "license". Keys can only be specified once.
now it reads:
error: duplicated key "license". Keys can only be specified once.
--> samples/rust/rust_minimal.rs:13:5
|
13 | license: "GPL",
| ^^^^^^^
Reviewed-by: Tamir Duberstein <tamird@gmail.com>
Signed-off-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Link: https://patch.msgid.link/20260112170919.1888584-5-gary@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
`#[vtable]` is converted to use syn. This is more robust than the
previous heuristic-based searching of defined methods and functions.
When doing so, the trait and impl are split into two code paths as the
types are distinct when parsed by `syn`.
Reviewed-by: Tamir Duberstein <tamird@gmail.com>
Signed-off-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Link: https://patch.msgid.link/20260112170919.1888584-4-gary@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
With `quote` crate now vendored in the kernel, we can remove our custom
`quote!` macro implementation and just rely on that crate instead.
The `quote` crate uses types from the `proc-macro2` library so we also
update to use that, and perform conversion in the top-level lib.rs.
Clippy complains about unnecessary `.to_string()` as `proc-macro2`
provides additional `PartialEq` impl, so they are removed.
Reviewed-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Signed-off-by: Gary Guo <gary@garyguo.net>
Acked-by: David Gow <davidgow@google.com> # for kunit
Link: https://patch.msgid.link/20260112170919.1888584-3-gary@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Added:
- '&'static mut MaybeUninit<T>' now implements 'InPlaceWrite'. This
enables users to use external allocation mechanisms such as
'static_cell'.
- Gary Guo as a Maintainer.
Changed:
- Rewrote all proc-macros ('[pin_]init!', '#[pin_data]',
'#[pinned_drop]', 'derive([Maybe]Zeroable)'), using 'syn' with better
diagnostics.
- 'derive([Maybe]Zeroable)' now support tuple structs.
- '[pin_]init!' now supports attributes on fields (such as
'#[cfg(...)]').
- Add a '#[default_error(<type>)]' attribute to '[pin_]init!' to
override the default error (when no '? Error' is specified).
- Support packed struct in '[pin_]init!' with
'#[disable_initialized_field_access]'.
Removed:
- 'try_[pin_]init!' have been removed in favor of merging their feature
with '[pin_]init!'. The kernel's own 'try_[pin_]init!' macros have
been updated to use the 'default_error' attribute.
Fixed:
- Corrected 'T: Sized' bounds to 'T: ?Sized' in the generated
'PinnedDrop' check by '#[pin_data]'.
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Merge tag 'pin-init-v7.0' of https://github.com/Rust-for-Linux/linux into rust-next
Pull pin-init updates from Benno Lossin:
"Added:
- Implement 'InPlaceWrite' for '&'static mut MaybeUninit<T>'. This
enables users to use external allocation mechanisms such as
'static_cell'.
- Add Gary Guo as a Maintainer.
Changed:
- Rewrote all proc-macros ('[pin_]init!', '#[pin_data]',
'#[pinned_drop]', 'derive([Maybe]Zeroable)'), using 'syn' with
better diagnostics.
- Support tuple structs in 'derive([Maybe]Zeroable)'.
- Support attributes on fields in '[pin_]init!' (such as
'#[cfg(...)]').
- Add a '#[default_error(<type>)]' attribute to '[pin_]init!' to
override the default error (when no '? Error' is specified).
- Support packed structs in '[pin_]init!' with
'#[disable_initialized_field_access]'.
Removed:
- Remove 'try_[pin_]init!' in favor of merging their feature
with '[pin_]init!'. Update the kernel's own 'try_[pin_]init!'
macros to use the 'default_error' attribute.
Fixed:
- Correct 'T: Sized' bounds to 'T: ?Sized' in the generated
'PinnedDrop' check by '#[pin_data]'."
* tag 'pin-init-v7.0' of https://github.com/Rust-for-Linux/linux:
rust: pin-init: Implement `InPlaceWrite<T>` for `&'static mut MaybeUninit<T>`
MAINTAINERS: add Gary Guo to pin-init
rust: pin-init: internal: init: simplify Zeroable safety check
rust: pin-init: internal: init: add escape hatch for referencing initialized fields
rust: pin-init: internal: init: add support for attributes on initializer fields
rust: init: use `#[default_error(err)]` for the initializer macros
rust: pin-init: add `#[default_error(<type>)]` attribute to initializer macros
rust: pin-init: rewrite the initializer macros using `syn`
rust: pin-init: add `?Sized` bounds to traits in `#[pin_data]` macro
rust: pin-init: rewrite `#[pin_data]` using `syn`
rust: pin-init: rewrite the `#[pinned_drop]` attribute macro using `syn`
rust: pin-init: rewrite `derive(Zeroable)` and `derive(MaybeZeroable)` using `syn`
rust: pin-init: internal: add utility API for syn error handling
rust: pin-init: add `syn` dependency and remove `proc-macro[2]` and `quote` workarounds
rust: pin-init: allow the crate to refer to itself as `pin-init` in doc tests
rust: pin-init: remove `try_` versions of the initializer macros
- Add `__rust_helper` to xarray abstraction C helpers.
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Merge tag 'rust-xarray-for-v6.20-v7.0' of https://github.com/Rust-for-Linux/linux into rust-next
Pull XArray update from Andreas Hindborg:
- Add '__rust_helper' to XArray abstraction C helpers.
* tag 'rust-xarray-for-v6.20-v7.0' of https://github.com/Rust-for-Linux/linux:
rust: xarray: add __rust_helper to helpers
These imports are already in scope by importing `kernel::prelude::*` and
does not need to be imported separately.
Signed-off-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/20260123172007.136873-4-gary@garyguo.net
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
This is needed to inline these helpers into Rust code.
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://patch.msgid.link/20260105-define-rust-helper-v2-26-51da5f454a67@google.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
This is needed to inline these helpers into Rust code.
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20260105-define-rust-helper-v2-19-51da5f454a67@google.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
This is needed to inline these helpers into Rust code.
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20260105-define-rust-helper-v2-12-51da5f454a67@google.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
This is needed to inline these helpers into Rust code.
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Link: https://patch.msgid.link/20260105-define-rust-helper-v2-11-51da5f454a67@google.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
This is needed to inline these helpers into Rust code.
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Acked-by: Andrew Ballance <andrewjballance@gmail.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Link: https://patch.msgid.link/20260105-define-rust-helper-v2-10-51da5f454a67@google.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
This is needed to inline these helpers into Rust code.
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Link: https://patch.msgid.link/20260105-define-rust-helper-v2-8-51da5f454a67@google.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
This is needed to inline these helpers into Rust code.
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Link: https://patch.msgid.link/20260105-define-rust-helper-v2-3-51da5f454a67@google.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
`GspInitDone` has no payload whatsoever, so the unit type `()` is the
correct way to represent its message content. We can use it now that
`()` implements `FromBytes`.
Reviewed-by: Alistair Popple <apopple@nvidia.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20251215-transmute_unit-v4-2-477d71ec7c23@nvidia.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
This is useful when using types that may or may not be empty in generic
code relying on these traits. It is also safe because technically a
no-op.
Reviewed-by: Alistair Popple <apopple@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Link: https://patch.msgid.link/20251215-transmute_unit-v4-1-477d71ec7c23@nvidia.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Some doc comments use `NULL` while others use plain NULL. Make it
consistent by adding backticks everywhere, matching the majority of
existing usage.
Signed-off-by: Peter Novak <seimun018r@gmail.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: David Gow <davidgow@google.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patch.msgid.link/20251130211233.367946-1-seimun018r@gmail.com
[ Reworded slightly. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
This entry will handle the support for `rust-analyzer`, which at the
moment is essentially about the `scripts/generate_rust_analyzer.py`
script.
It is one more subentry of the Rust subsystem. The new branch is
already part of linux-next and will be used to send PRs to be merged
into rust-next.
Tamir and Jesung will take care of it. They have both been active around
the `rust-analyzer` support for a while.
Acked-by: Tamir Duberstein <tamird@kernel.org>
Acked-by: Jesung Yang <y.j3ms.n@gmail.com>
Acked-by: Andreas Hindborg <a.hindborg@kernel.org>
Link: https://patch.msgid.link/20260115214545.63262-1-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Refactors parts of the get() and find_best_match()
traversal logic to minimize the scope of unsafe blocks
and avoid duplicating same safety comments.
One of the removed comments was also misleading:
// SAFETY: `node` is a non-null node...
Ordering::Equal => return Some(unsafe { &(*this).value }),
as `node` should have been `this`.
No functional changes intended; this is purely a safety
improvement that reduces the amount of unsafe blocks
while keeping all invariants intact.
[ Alice writes:
"One consequence of creating a &_ to the bindings::rb_node struct means
that we assert immutability for the entire struct and not just the
rb_left/rb_right fields, but I have verified that this is ok."
- Miguel ]
Signed-off-by: Onur Özkan <work@onurozkan.dev>
Reviewed-by: Charalampos Mitrodimas <charmitro@posteo.net>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://patch.msgid.link/20251113144547.502-1-work@onurozkan.dev
[ Reworded title and replaced `cursor_lower_bound()` with
`find_best_match()` in message. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
C-String literals were added in Rust 1.77. Replace instances of
`kernel::c_str!` with C-String literals where possible.
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Acked-by: Igor Korotin <igor.korotin.linux@gmail.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://patch.msgid.link/20251222-cstr-i2c-v1-2-df1c258d4615@gmail.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
C-String literals were added in Rust 1.77. Replace instances of
`kernel::c_str!` with C-String literals where possible.
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Acked-by: Igor Korotin <igor.korotin.linux@gmail.com>
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Link: https://patch.msgid.link/20251222-cstr-i2c-v1-1-df1c258d4615@gmail.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Since `ALIGN` is a const parameter, this assertion can be done in const
context using the `assert!` macro.
Suggested-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://patch.msgid.link/20251216-ptr_assert-v1-1-d8b2d5c5741d@nvidia.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
`build_assert` relies on the compiler to optimize out its error path,
lest build fails with the dreaded error:
ERROR: modpost: "rust_build_error" [path/to/module.ko] undefined!
It has been observed that very trivial code performing I/O accesses
(sometimes even using an immediate value) would seemingly randomly fail
with this error whenever `CLIPPY=1` was set. The same behavior was also
observed until different, very similar conditions [1][2].
The cause appears to be that the failing function is eventually using
`build_assert` with its argument, but is only annotated with
`#[inline]`. This gives the compiler freedom to not inline the function,
which it notably did when Clippy was active, triggering the error.
The fix is to annotate functions passing their argument to
`build_assert` with `#[inline(always)]`, telling the compiler to be as
aggressive as possible with their inlining. This is also the correct
behavior as inlining is mandatory for correct behavior in these cases.
Add a paragraph instructing to annotate such functions with
`#[inline(always)]` in `build_assert`'s documentation, and split its
example to illustrate.
Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Link: https://patch.msgid.link/20251208-io-build-assert-v3-1-98aded02c1ea@nvidia.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
The Rust support was merged in v6.1 into mainline in order to help
determine whether Rust as a language was suitable for the kernel,
i.e. worth the tradeoffs, technically, procedurally and socially.
At the 2025 Linux Kernel Maintainers Summit, the experiment has just
been deemed concluded [1].
Thus remove the section -- it was not fully true already anyway, since
there are already uses of Rust in production out there, some well-known
Linux distributions enable it and it is already in millions of devices
via Android.
Obviously, this does not mean that everything works for every kernel
configuration, architecture, toolchain etc., or that there won't be
new issues. There is still a ton of work to do in all areas, from the
kernel to upstream Rust, GCC and other projects. And, in fact, certain
combinations (such as the mixed GCC+LLVM builds and the upcoming GCC
support) are still quite experimental but getting there.
But the experiment is done, i.e. Rust is here to stay.
I hope this signals commitment from the kernel to companies and other
entities to invest more into it, e.g. into giving time to their kernel
developers to train themselves in Rust.
Thanks to the many kernel maintainers that gave the project their
support and patience throughout these years, and to the many other
developers, whether in the kernel or in other projects, that have
made this possible. I had a long list of 173 names in the credits of
the original pull that merged the support into the kernel [2], and now
such a list would be way longer, so I will not even try to compose one,
but again, thanks a lot, everybody.
Link: https://lwn.net/Articles/1050174/ [1]
Link: https://git.kernel.org/linus/8aebac82933f [2]
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Benno Lossin <lossin@kernel.org>
Acked-by: Andreas Hindborg <a.hindborg@kernel.org>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://patch.msgid.link/20251213000042.23072-1-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
- Add Chen Ridong as cpuset reviewer.
- Add SPDX license identifiers to cgroup files that were missing them.
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Merge tag 'cgroup-for-6.19-rc5-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:
- Add Chen Ridong as cpuset reviewer
- Add SPDX license identifiers to cgroup files that were missing them
* tag 'cgroup-for-6.19-rc5-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
kernel: cgroup: Add LGPL-2.1 SPDX license ID to legacy_freezer.c
kernel: cgroup: Add SPDX-License-Identifier lines
MAINTAINERS: Add Chen Ridong as cpuset reviewer
* Fix an inconsistency in structure size on 32-bit platforms caused by padding
differences for the new EXT4_IOC_[GS]ET_TUNE_SB_PARAM ioctls
* Fix a buffer leak on the error path when dropping the refcount an xattr
value stored in an inode
* Fix missing locking on the error path for the file defragmentation ioctl
leading to a BUG
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Merge tag 'ext4_for_linus-6.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
- Fix an inconsistency in structure size on 32-bit platforms caused by
padding differences for the new EXT4_IOC_[GS]ET_TUNE_SB_PARAM ioctls
- Fix a buffer leak on the error path when dropping the refcount an
xattr value stored in an inode
- Fix missing locking on the error path for the file defragmentation
ioctl leading to a BUG
* tag 'ext4_for_linus-6.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: fix iloc.bh leak in ext4_xattr_inode_update_ref
ext4: add missing down_write_data_sem in mext_move_extent().
ext4: fix ext4_tune_sb_params padding
Bunch of driver fixes:
- Freescale typec orientation switch fix, clearing register fix, assertion
of phy reset during power on
- Qualcomm pcs register clear before using
- stm one off fix
- TI runtimepm error handling, regmap leak fixes
- Rockchip gadget mode disconnection and disruption fixes
- Tegra register level fix
- Broadcom pointer cast warning fix
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Merge tag 'phy-fixes-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy
Pull phy fixes from Vinod Koul:
"A bunch of driver fixes:
- Freescale typec orientation switch fix, clearing register fix,
assertion of phy reset during power on
- Qualcomm pcs register clear before using
- stm one off fix
- TI runtimepm error handling, regmap leak fixes
- Rockchip gadget mode disconnection and disruption fixes
- Tegra register level fix
- Broadcom pointer cast warning fix"
* tag 'phy-fixes-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy:
phy: freescale: imx8m-pcie: assert phy reset during power on
phy: rockchip: inno-usb2: Fix a double free bug in rockchip_usb2phy_probe()
phy: broadcom: ns-usb3: Fix Wvoid-pointer-to-enum-cast warning (again)
phy: tegra: xusb: Explicitly configure HS_DISCON_LEVEL to 0x7
phy: rockchip: inno-usb2: fix communication disruption in gadget mode
phy: rockchip: inno-usb2: fix disconnection in gadget mode
phy: ti: gmii-sel: fix regmap leak on probe failure
phy: sparx5-serdes: make it selectable for ARCH_LAN969X
phy: ti: da8xx-usb: Handle devm_pm_runtime_enable() errors
phy: stm32-usphyc: Fix off by one in probe()
phy: qcom-qusb2: Fix NULL pointer dereference on early suspend
phy: fsl-imx8mq-usb: Clear the PCS_TX_SWING_FULL field before using it
dt-bindings: phy: qcom,sc8280xp-qmp-pcie-phy: Update pcie phy bindings for qcs8300
phy: fsl-imx8mq-usb: fix typec orientation switch when built as module
- Single off-by-one fix for allocating slave id
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Merge tag 'soundwire-6.19-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire
Pull soundwire fix from Vinod Koul:
- Single off-by-one fix for allocating slave id
* tag 'soundwire-6.19-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
soundwire: bus: fix off-by-one when allocating slave IDs
Here are some small USB fixes and new device ids for 6.19-rc6
Included in here are:
- new usb-serial device ids
- dwc3-apple driver fixes to get things working properly on that
hardware platform
- ohci/uhci platfrom driver module soft-deps with ehci to remove a
runtime warning that sometimes shows up on some platforms.
- quirk for broken devices that can not handle reading the BOS
descriptor from them without going crazy.
- usb-serial driver fixes
- xhci driver fixes
- usb gadget driver fixes
All of these except for the last xhci fix has been in linux-next for a
while. The xhci fix has been reported by others to solve the issue for
them, so should be ok.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some small USB fixes and new device ids for 6.19-rc6
Included in here are:
- new usb-serial device ids
- dwc3-apple driver fixes to get things working properly on that
hardware platform
- ohci/uhci platfrom driver module soft-deps with ehci to remove a
runtime warning that sometimes shows up on some platforms.
- quirk for broken devices that can not handle reading the BOS
descriptor from them without going crazy.
- usb-serial driver fixes
- xhci driver fixes
- usb gadget driver fixes
All of these except for the last xhci fix has been in linux-next for a
while. The xhci fix has been reported by others to solve the issue for
them, so should be ok"
* tag 'usb-6.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
xhci: sideband: don't dereference freed ring when removing sideband endpoint
usb: gadget: uvc: retry vb2_reqbufs() with vb_vmalloc_memops if use_sg fail
usb: gadget: uvc: return error from uvcg_queue_init()
usb: gadget: uvc: fix interval_duration calculation
usb: gadget: uvc: fix req_payload_size calculation
usb: dwc3: apple: Ignore USB role switches to the active role
usb: host: xhci-tegra: Use platform_get_irq_optional() for wake IRQs
USB: OHCI/UHCI: Add soft dependencies on ehci_platform
usb: dwc3: apple: Set USB2 PHY mode before dwc3 init
USB: serial: f81232: fix incomplete serial port generation
USB: serial: ftdi_sio: add support for PICAXE AXE027 cable
USB: serial: option: add Telit LE910 MBIM composition
usb: core: add USB_QUIRK_NO_BOS for devices that hang on BOS descriptor
dt-bindings: usb: qcom,dwc3: Correct MSM8994 interrupts
dt-bindings: usb: qcom,dwc3: Correct IPQ5018 interrupts
tcpm: allow looking for role_sw device in the main node
usb: dwc3: Check for USB4 IP_NAME
when the driver memory allocation fails. Fix that in both x38 and i3200 EDAC
drivers as former has copied the bug from the latter, it looks like
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Merge tag 'edac_urgent_for_v6.19_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC fixes from Borislav Petkov:
"Make sure the memory-mapped memory controller registers BAR gets
unmapped when the driver memory allocation fails
Fix that in both x38 and i3200 EDAC drivers as former has copied the
bug from the latter, it looks like"
* tag 'edac_urgent_for_v6.19_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC/x38: Fix a resource leak in x38_probe1()
EDAC/i3200: Fix a resource leak in i3200_probe1()
may result in incorrect skipping of hrtimer IPIs.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'timers-urgent-2026-01-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fix from Ingo Molnar:
"Fix the update_needs_ipi() check in the hrtimer code that may result
in incorrect skipping of hrtimer IPIs"
* tag 'timers-urgent-2026-01-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
hrtimer: Fix softirq base check in update_needs_ipi()
discovered and fixed recently:
- Fix a race condition in the DL server
- Fix a DL server bug which can result in incorrectly going
idle when there's work available
- Fix DL server bug which triggers a WARN() due to broken
get_prio_dl() logic and subsequent misbehavior
- Fix double update_rq_clock() calls
- Fix setscheduler() assumption about static priorities
- Make sure balancing callbacks are always called
- Plus a handful of preparatory commits for the fixes.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-urgent-2026-01-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
"Misc deadline scheduler fixes, mainly for a new category of bugs that
were discovered and fixed recently:
- Fix a race condition in the DL server
- Fix a DL server bug which can result in incorrectly going idle when
there's work available
- Fix DL server bug which triggers a WARN() due to broken
get_prio_dl() logic and subsequent misbehavior
- Fix double update_rq_clock() calls
- Fix setscheduler() assumption about static priorities
- Make sure balancing callbacks are always called
- Plus a handful of preparatory commits for the fixes"
* tag 'sched-urgent-2026-01-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/deadline: Use ENQUEUE_MOVE to allow priority change
sched: Deadline has dynamic priority
sched: Audit MOVE vs balance_callbacks
sched: Fold rq-pin swizzle into __balance_callbacks()
sched/deadline: Avoid double update_rq_clock()
sched/deadline: Ensure get_prio_dl() is up-to-date
sched/deadline: Fix server stopping with runnable tasks
sched: Provide idle_rq() helper
sched/deadline: Fix potential race in dl_add_task_root_domain()
sched/deadline: Remove unnecessary comment in dl_add_task_root_domain()
The error branch for ext4_xattr_inode_update_ref forget to release the
refcount for iloc.bh. Find this when review code.
Fixes: 57295e8354 ("ext4: guard against EA inode refcount underflow in xattr update")
Signed-off-by: Yang Erkun <yangerkun@huawei.com>
Reviewed-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Zhang Yi <yi.zhang@huawei.com>
Link: https://patch.msgid.link/20251213055706.3417529-1-yangerkun@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Commit 962e8a01ea ("ext4: introduce mext_move_extent()") attempts to
call ext4_swap_extents() on the failure path to recover the swapped
extents, but fails to acquire locks for the two inode->i_data_sem,
triggering the BUG_ON statement in ext4_swap_extents().
This issue can be fixed by calling ext4_double_down_write_data_sem()
before ext4_swap_extents().
Signed-off-by: Julian Sun <sunjunchao@bytedance.com>
Reported-by: syzbot+4ea6bd8737669b423aae@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/69368649.a70a0220.38f243.0093.GAE@google.com/
Fixes: 962e8a01ea ("ext4: introduce mext_move_extent()")
Reviewed-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Zhang Yi <yi.zhang@huawei.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Link: https://patch.msgid.link/20251208123713.1971068-1-sunjunchao@bytedance.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
The padding at the end of struct ext4_tune_sb_params is architecture
specific and in particular is different between x86-32 and x86-64,
since the __u64 member only enforces struct alignment on the latter.
This shows up as a new warning when test-building the headers with
-Wpadded:
include/linux/ext4.h:144:1: error: padding struct size to alignment boundary with 4 bytes [-Werror=padded]
All members inside the structure are naturally aligned, so the only
difference here is the amount of padding at the end. Make the padding
explicit, to have a consistent sizeof(struct ext4_tune_sb_params) of
232 on all architectures and avoid adding compat ioctl handling for
EXT4_IOC_GET_TUNE_SB_PARAM/EXT4_IOC_SET_TUNE_SB_PARAM.
This is an ABI break on x86-32 but hopefully this can go into 6.18.y early
enough as a fixup so no actual users will be affected. Alternatively, the
kernel could handle the ioctl commands for both sizes (232 and 228 bytes)
on all architectures.
Fixes: 04a91570ac ("ext4: implemet new ioctls to set and get superblock parameters")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20251204101914.1037148-1-arnd@kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
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Merge tag 'for-6.19-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
- with large folios in use, fix partial incorrect update of a reflinked
range
- fix potential deadlock in iget when lookup fails and eviction is
needed
- in send, validate inline extent type while detecting file holes
- fix memory leak after an error when creating a space info
- remove zone statistics from sysfs again, the output size limitations
make it unusable, we'll do it in another way in another release
- test fixes:
- return proper error codes from block remapping tests
- fix tree root leaks in qgroup tests after errors
* tag 'for-6.19-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: remove zoned statistics from sysfs
btrfs: fix memory leaks in create_space_info() error paths
btrfs: invalidate pages instead of truncate after reflinking
btrfs: update the Kconfig string for CONFIG_BTRFS_EXPERIMENTAL
btrfs: send: check for inline extents in range_is_hole_in_parent()
btrfs: tests: fix return 0 on rmap test failure
btrfs: tests: fix root tree leak in btrfs_test_qgroups()
btrfs: release path before iget_failed() in btrfs_read_locked_inode()
(atomicity not required). For kunit testing, the structure is packed to
avoid memcmp() errors but this affects atomic bitops as they have strict
alignment requirements.
Also remove a duplicate include in the mpam driver.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
"An arm64/mpam fix to use non-atomic bitops on struct mmap_props member
(atomicity not required).
For kunit testing, the structure is packed to avoid memcmp() errors
but this affects atomic bitops as they have strict alignment
requirements.
Also remove a duplicate include in the mpam driver"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm_mpam: Use non-atomic bitops when modifying feature bitmap
arm_mpam: Remove duplicate linux/srcu.h header
The previous change centralizing kselftest.h include path in lib.mk caused x86
selftests to fail, as x86 Makefile overwrites CFLAGS using ":=", dropping the
include path added in lib.mk. Therefore, helpers.h could not find kselftest.h
during compilation.
Fix this by adding the tools/testing/sefltest to CFLAGS in x86 Makefile.
[ bp: Correct commit ID in Fixes: ]
Fixes: e6fbd1759c ("selftests: complete kselftest include centralization")
Closes: https://lore.kernel.org/lkml/CA+G9fYvKjQcCBMfXA-z2YuL2L+3Qd-pJjEUDX8PDdz2-EEQd=Q@mail.gmail.com/T/#m83fd330231287fc9d6c921155bee16c591db7360
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Signed-off-by: Bala-Vignesh-Reddy <reddybalavignesh9979@gmail.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Tested-by: Brendan Jackman <jackmanb@google.com>
Link: https://patch.msgid.link/20251022062948.162852-1-reddybalavignesh9979@gmail.com
