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Wed, 18 Jun 2025 03:08:38 -0700 (PDT) Received: from igor-korotin-Precision-Tower-3620.airspan.com ([188.39.32.4]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a568a54b7asm16689305f8f.16.2025.06.18.03.08.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Jun 2025 03:08:38 -0700 (PDT) Sender: Igor Korotin From: Igor Korotin To: ojeda@kernel.org, alex.gaynor@gmail.com, rafael@kernel.org, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org, linux-acpi@vger.kernel.org Cc: boqun.feng@gmail.com, gary@garyguo.net, bjorn3_gh@protonmail.com, benno.lossin@proton.me, a.hindborg@kernel.org, aliceryhl@google.com, tmgross@umich.edu, dakr@kernel.org, lenb@kernel.org, wedsonaf@gmail.com, viresh.kumar@linaro.org, alex.hung@amd.com, dingxiangfei2009@gmail.com Subject: [PATCH v7 1/9] rust: device: implement FwNode::is_compatible() Date: Wed, 18 Jun 2025 11:06:35 +0100 Message-ID: <20250618100636.3047585-1-igor.korotin.linux@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250618100221.3047133-1-igor.korotin.linux@gmail.com> References: <20250618100221.3047133-1-igor.korotin.linux@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Danilo Krummrich Implement FwNode::is_compatible() to check whether a given match string is compatible with a FwNode. Signed-off-by: Danilo Krummrich --- rust/helpers/property.c | 6 ++++++ rust/kernel/device/property.rs | 9 +++++++++ 2 files changed, 15 insertions(+) diff --git a/rust/helpers/property.c b/rust/helpers/property.c index 08f68e2dac4a..177b9ffd7ba4 100644 --- a/rust/helpers/property.c +++ b/rust/helpers/property.c @@ -6,3 +6,9 @@ void rust_helper_fwnode_handle_put(struct fwnode_handle *fw= node) { fwnode_handle_put(fwnode); } + +bool rust_helper_fwnode_device_is_compatible(const struct fwnode_handle *f= wnode, + const char *match) +{ + return fwnode_device_is_compatible(fwnode, match); +} diff --git a/rust/kernel/device/property.rs b/rust/kernel/device/property.rs index 838509111e57..a946bf8d5571 100644 --- a/rust/kernel/device/property.rs +++ b/rust/kernel/device/property.rs @@ -93,6 +93,15 @@ pub fn property_present(&self, name: &CStr) -> bool { unsafe { bindings::fwnode_property_present(self.as_raw().cast_cons= t(), name.as_char_ptr()) } } =20 + /// Return `true` if this [`FwNode`] is compatible with `match_str`, `= false` otherwise. + pub fn is_compatible(&self, match_str: &CStr) -> bool { + // SAFETY: + // - By the invariant of `CStr`, `name.as_char_ptr()` is valid and= null-terminated. + // - The type invariant of `Self` guarantees that `self.as_raw() i= s a pointer to a valid + // `struct fwnode_handle`. + unsafe { bindings::fwnode_device_is_compatible(self.as_raw(), matc= h_str.as_char_ptr()) } + } + /// Returns firmware property `name` boolean value. pub fn property_read_bool(&self, name: &CStr) -> bool { // SAFETY: --=20 2.43.0