linux-kernel - [PATCH] rust: make `clk::Hertz` methods const

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250618091442.29104-1-work@onurozkan.dev>
Date: Wed, 18 Jun 2025 12:14:42 +0300
From: Onur Özkan <work@...rozkan.dev>
To: rust-for-linux@...r.kernel.org,
	linux-clk@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: mturquette@...libre.com,
	sboyd@...nel.org,
	ojeda@...nel.org,
	alex.gaynor@...il.com,
	boqun.feng@...il.com,
	gary@...yguo.net,
	bjorn3_gh@...tonmail.com,
	lossin@...nel.org,
	a.hindborg@...nel.org,
	aliceryhl@...gle.com,
	tmgross@...ch.edu,
	dakr@...nel.org,
	Onur Özkan <work@...rozkan.dev>
Subject: [PATCH] rust: make `clk::Hertz` methods const

Marks `Hertz` methods as `const` to make them available
for `const` contexts. This can be useful when defining
static/compile-time frequency parameters in drivers/subsystems.

Signed-off-by: Onur Özkan <work@...rozkan.dev>
---
 rust/kernel/clk.rs | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/rust/kernel/clk.rs b/rust/kernel/clk.rs
index 6041c6d07527..ef0a2edd52c3 100644
--- a/rust/kernel/clk.rs
+++ b/rust/kernel/clk.rs
@@ -31,37 +31,37 @@

 impl Hertz {
     /// Create a new instance from kilohertz (kHz)
-    pub fn from_khz(khz: c_ulong) -> Self {
+    pub const fn from_khz(khz: c_ulong) -> Self {
         Self(khz * 1_000)
     }

     /// Create a new instance from megahertz (MHz)
-    pub fn from_mhz(mhz: c_ulong) -> Self {
+    pub const fn from_mhz(mhz: c_ulong) -> Self {
         Self(mhz * 1_000_000)
     }

     /// Create a new instance from gigahertz (GHz)
-    pub fn from_ghz(ghz: c_ulong) -> Self {
+    pub const fn from_ghz(ghz: c_ulong) -> Self {
         Self(ghz * 1_000_000_000)
     }

     /// Get the frequency in hertz
-    pub fn as_hz(&self) -> c_ulong {
+    pub const fn as_hz(&self) -> c_ulong {
         self.0
     }

     /// Get the frequency in kilohertz
-    pub fn as_khz(&self) -> c_ulong {
+    pub const fn as_khz(&self) -> c_ulong {
         self.0 / 1_000
     }

     /// Get the frequency in megahertz
-    pub fn as_mhz(&self) -> c_ulong {
+    pub const fn as_mhz(&self) -> c_ulong {
         self.0 / 1_000_000
     }

     /// Get the frequency in gigahertz
-    pub fn as_ghz(&self) -> c_ulong {
+    pub const fn as_ghz(&self) -> c_ulong {
         self.0 / 1_000_000_000
     }
 }
2.49.0