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Signed-off-by: Timur Tabi Reviewed-by: Alice Ryhl Reviewed-by: Alexandre Courbot Reviewed-by: Gary Guo Tested-by: John Hubbard Tested-by: Eliot Courtney --- rust/helpers/device.c | 5 +++++ rust/kernel/device.rs | 11 +++++++++++ 2 files changed, 16 insertions(+) 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 94e0548e7687..8f6ad4f53101 100644 --- a/rust/kernel/device.rs +++ b/rust/kernel/device.rs @@ -489,6 +489,17 @@ pub fn fwnode(&self) -> Option<&property::FwNode> { // 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 -- 2.53.0