diff options
| author | Timur Tabi <ttabi@nvidia.com> | 2026-03-19 16:26:53 -0500 |
|---|---|---|
| committer | Danilo Krummrich <dakr@kernel.org> | 2026-03-24 23:51:23 +0100 |
| commit | d35ae50c5f48dfcd33cb24bf477ce912fa0af1f7 (patch) | |
| tree | 66e7e187b53b5541fdce788b7a1b4e810b71e1b6 /rust | |
| parent | 651c27d6a7e2b92eb30f56738dc45e861c975921 (diff) | |
rust: device: add device name method
Add a name() method to the `Device` type, which returns a CStr that
contains the device name.
Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Tested-by: John Hubbard <jhubbard@nvidia.com>
Tested-by: Eliot Courtney <ecourtney@nvidia.com>
Link: https://patch.msgid.link/20260319212658.2541610-2-ttabi@nvidia.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Diffstat (limited to 'rust')
| -rw-r--r-- | rust/helpers/device.c | 5 | ||||
| -rw-r--r-- | rust/kernel/device.rs | 11 |
2 files changed, 16 insertions, 0 deletions
diff --git a/rust/helpers/device.c b/rust/helpers/device.c index a8ab931a9bd1..3be4ee590784 100644 --- a/rust/helpers/device.c +++ b/rust/helpers/device.c @@ -25,3 +25,8 @@ __rust_helper void rust_helper_dev_set_drvdata(struct device *dev, void *data) { dev_set_drvdata(dev, data); } + +__rust_helper const char *rust_helper_dev_name(const struct device *dev) +{ + return dev_name(dev); +} diff --git a/rust/kernel/device.rs b/rust/kernel/device.rs index 379058eca2ed..6d5396a43ebe 100644 --- a/rust/kernel/device.rs +++ b/rust/kernel/device.rs @@ -489,6 +489,17 @@ impl<Ctx: DeviceContext> Device<Ctx> { // defined as a `#[repr(transparent)]` wrapper around `fwnode_handle`. Some(unsafe { &*fwnode_handle.cast() }) } + + /// Returns the name of the device. + /// + /// This is the kobject name of the device, or its initial name if the kobject is not yet + /// available. + #[inline] + pub fn name(&self) -> &CStr { + // SAFETY: By its type invariant `self.as_raw()` is a valid pointer to a `struct device`. + // The returned string is valid for the lifetime of the device. + unsafe { CStr::from_char_ptr(bindings::dev_name(self.as_raw())) } + } } // SAFETY: `Device` is a transparent wrapper of a type that doesn't depend on `Device`'s generic |