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| author | Danilo Krummrich <dakr@kernel.org> | 2025-06-20 16:15:04 +0100 |
|---|---|---|
| committer | Danilo Krummrich <dakr@kernel.org> | 2025-06-25 18:10:12 +0200 |
| commit | 56a789f776f24e6b132ec00d4c27672ed4e2ec57 (patch) | |
| tree | 4d8ffe9a30fa0a5eeda62ed67ec98ff9242281b5 /rust | |
| parent | samples: rust: platform: Add property child and reference args examples (diff) | |
| download | linux-56a789f776f24e6b132ec00d4c27672ed4e2ec57.tar.gz linux-56a789f776f24e6b132ec00d4c27672ed4e2ec57.zip | |
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: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Igor Korotin <igor.korotin.linux@gmail.com>
Link: https://lore.kernel.org/r/20250620151504.278766-1-igor.korotin.linux@gmail.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Diffstat (limited to 'rust')
| -rw-r--r-- | rust/helpers/helpers.c | 1 | ||||
| -rw-r--r-- | rust/helpers/of.c | 8 | ||||
| -rw-r--r-- | rust/kernel/device/property.rs | 7 |
3 files changed, 16 insertions, 0 deletions
diff --git a/rust/helpers/helpers.c b/rust/helpers/helpers.c index 393ad201befb..0b09bd0e3561 100644 --- a/rust/helpers/helpers.c +++ b/rust/helpers/helpers.c @@ -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" diff --git a/rust/helpers/of.c b/rust/helpers/of.c new file mode 100644 index 000000000000..86b51167c913 --- /dev/null +++ b/rust/helpers/of.c @@ -0,0 +1,8 @@ +// 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); +} diff --git a/rust/kernel/device/property.rs b/rust/kernel/device/property.rs index 2f6f3ef17db7..49ee12a906db 100644 --- a/rust/kernel/device/property.rs +++ b/rust/kernel/device/property.rs @@ -61,6 +61,13 @@ impl FwNode { 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. /// |