Commit 56a789f7 authored by Danilo Krummrich's avatar Danilo Krummrich
Browse files

rust: device: implement FwNode::is_of_node() 



Implement FwNode::is_of_node() in order to check whether a FwNode
instance is embedded in a struct device_node.

Reviewed-by: default avatarRob Herring (Arm) <robh@kernel.org>
Signed-off-by: default avatarIgor Korotin <igor.korotin.linux@gmail.com>
Link: https://lore.kernel.org/r/20250620151504.278766-1-igor.korotin.linux@gmail.com


Signed-off-by: default avatarDanilo Krummrich <dakr@kernel.org>
parent c79cbde9

MAINTAINERS

+1 −0
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@@ -18580,6 +18580,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git 
F:	Documentation/ABI/testing/sysfs-firmware-ofw

F:	drivers/of/

F:	include/linux/of*.h

F:	rust/helpers/of.c

F:	rust/kernel/of.rs

F:	scripts/dtc/

F:	tools/testing/selftests/dt/

rust/helpers/helpers.c

+1 −0
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@@ -28,6 +28,7 @@ 
#include "kunit.c"

#include "mm.c"

#include "mutex.c"

#include "of.c"

#include "page.c"

#include "platform.c"

#include "pci.c"

rust/helpers/of.c

0 → 100644
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// SPDX-License-Identifier: GPL-2.0



#include <linux/of.h>



bool rust_helper_is_of_node(const struct fwnode_handle *fwnode)

{

	return is_of_node(fwnode);

}

rust/kernel/device/property.rs

+7 −0
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@@ -61,6 +61,13 @@ pub(crate) fn as_raw(&self) -> *mut bindings::fwnode_handle { 
        self.0.get()

    }



    /// Returns `true` if `&self` is an OF node, `false` otherwise.

    pub fn is_of_node(&self) -> bool {

        // SAFETY: The type invariant of `Self` guarantees that `self.as_raw() is a pointer to a

        // valid `struct fwnode_handle`.

        unsafe { bindings::is_of_node(self.as_raw()) }

    }



    /// Returns an object that implements [`Display`](core::fmt::Display) for

    /// printing the name of a node.

    ///