From: Andrew Ballance <andrewjballance@gmail.com>
To: jbaron@akamai.com, jim.cromie@gmail.com,
daniel.almeida@collabora.com, acourbot@nvidia.com,
ojeda@kernel.org, alex.gaynor@gmail.com, boqun.feng@gmail.com,
gary@garyguo.net, bjorn3_gh@protonmail.com, lossin@kernel.org,
a.hindborg@kernel.org, aliceryhl@google.com, tmgross@umich.edu,
dakr@kernel.org, gregkh@linuxfoundation.org, rafael@kernel.org,
rostedt@goodmis.org, andrewjballance@gmail.com
Cc: viresh.kumar@linaro.org, lina+kernel@asahilina.net,
tamird@gmail.com, jubalh@iodoru.org,
rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [RFC PATCH v2 2/4] rust: jump label: add STATIC_KEY_INIT_FALSE
Date: Fri, 20 Jun 2025 16:05:31 -0500 [thread overview]
Message-ID: <20250620210533.400889-3-andrewjballance@gmail.com> (raw)
In-Reply-To: <20250620210533.400889-1-andrewjballance@gmail.com>
adds a const STATIC_KEY_INIT_FALSE which should be used to init
a static_key_false.
Signed-off-by: Andrew Ballance <andrewjballance@gmail.com>
---
rust/kernel/jump_label.rs | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/rust/kernel/jump_label.rs b/rust/kernel/jump_label.rs
index 002cc3bd73da..e30db2d06c76 100644
--- a/rust/kernel/jump_label.rs
+++ b/rust/kernel/jump_label.rs
@@ -72,3 +72,8 @@ macro_rules! arch_static_branch {
pub const fn bool_to_int(b: bool) -> i32 {
b as i32
}
+
+/// Default value for a `static_key_false`.
+// SAFETY: a unlikely static key is always zeroed
+#[allow(dead_code)]
+pub(crate) const STATIC_KEY_INIT_FALSE: bindings::static_key_false = unsafe { core::mem::zeroed() };
--
2.49.0
next prev parent reply other threads:[~2025-06-20 21:06 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-20 21:05 [RFC PATCH v2 0/4] rust: add support for dynamic debug Andrew Ballance
2025-06-20 21:05 ` [RFC PATCH v2 1/4] rust: jump label: add support for nested arguments Andrew Ballance
2025-06-20 21:05 ` Andrew Ballance [this message]
2025-06-20 21:05 ` [RFC PATCH v2 3/4] rust: print: add support for dynamic debug to pr_debug! Andrew Ballance
2025-06-20 21:05 ` [RFC PATCH v2 4/4] rust: device: add support for dynamic debug to dev_dbg! Andrew Ballance
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