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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updatesk from Greg KH:
"Here is the big set of driver core updates for 6.15-rc1. Lots of stuff
happened this development cycle, including:
- kernfs scaling changes to make it even faster thanks to rcu
- bin_attribute constify work in many subsystems
- faux bus minor tweaks for the rust bindings
- rust binding updates for driver core, pci, and platform busses,
making more functionaliy available to rust drivers. These are all
due to people actually trying to use the bindings that were in
6.14.
- make Rafael and Danilo full co-maintainers of the driver core
codebase
- other minor fixes and updates"
* tag 'driver-core-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (52 commits)
rust: platform: require Send for Driver trait implementers
rust: pci: require Send for Driver trait implementers
rust: platform: impl Send + Sync for platform::Device
rust: pci: impl Send + Sync for pci::Device
rust: platform: fix unrestricted &mut platform::Device
rust: pci: fix unrestricted &mut pci::Device
rust: device: implement device context marker
rust: pci: use to_result() in enable_device_mem()
MAINTAINERS: driver core: mark Rafael and Danilo as co-maintainers
rust/kernel/faux: mark Registration methods inline
driver core: faux: only create the device if probe() succeeds
rust/faux: Add missing parent argument to Registration::new()
rust/faux: Drop #[repr(transparent)] from faux::Registration
rust: io: fix devres test with new io accessor functions
rust: io: rename `io::Io` accessors
kernfs: Move dput() outside of the RCU section.
efi: rci2: mark bin_attribute as __ro_after_init
rapidio: constify 'struct bin_attribute'
firmware: qemu_fw_cfg: constify 'struct bin_attribute'
powerpc/perf/hv-24x7: Constify 'struct bin_attribute'
...
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In the `module!` macro, the `author` field is currently of type `String`.
Since modules can have multiple authors, this limitation prevents
specifying more than one.
Add an `authors` field as `Option<Vec<String>>` to allow creating
modules with multiple authors, and change the documentation and all
current users to use it. Eventually, the single `author` field may
be removed.
[ The `modinfo` key needs to still be `author`; otherwise, tooling
may not work properly, e.g.:
$ modinfo --author samples/rust/rust_print.ko
Rust for Linux Contributors
I have also kept the original `author` field (undocumented), so
that we can drop it more easily in a kernel cycle or two.
- Miguel ]
Suggested-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://github.com/Rust-for-Linux/linux/issues/244
Reviewed-by: Charalampos Mitrodimas <charmitro@posteo.net>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org>
Signed-off-by: Guilherme Giacomo Simoes <trintaeoitogc@gmail.com>
Link: https://lore.kernel.org/r/20250309175712.845622-2-trintaeoitogc@gmail.com
[ Fixed `modinfo` key. Kept `author` field. Reworded message
accordingly. Updated my email. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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A little late in the review of the faux device interface, we added the
ability to specify a parent device when creating new faux devices - but
this never got ported over to the rust bindings. So, let's add the missing
argument now so we don't have to convert other users later down the line.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250227193522.198344-1-lyude@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This introduces a module for working with faux devices in rust, along with
adding sample code to show how the API is used. Unlike other types of
devices, we don't provide any hooks for device probe/removal - since these
are optional for the faux API and are unnecessary in rust.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: Maíra Canal <mairacanal@riseup.net>
Cc: Danilo Krummrich <dakr@kernel.org>
Cc: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Link: https://lore.kernel.org/r/2025021026-exert-accent-b4c6@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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