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authorThomas Zimmermann <tzimmermann@suse.de>2025-06-11 09:01:34 +0200
committerThomas Zimmermann <tzimmermann@suse.de>2025-06-11 09:01:34 +0200
commitc598d5eb9fb331ba17bc9ad67ae9a2231ca5aca5 (patch)
treea5b6f4655cde4f19b6b157aa455723c0329bd719 /rust/kernel/static_assert.rs
parent29a9b3a504c0d18bcc7f0547371409e9dcbc045e (diff)
parent19272b37aa4f83ca52bdf9c16d5d81bdd1354494 (diff)
Merge drm/drm-next into drm-misc-next
Backmerging to forward to v6.16-rc1 Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Diffstat (limited to 'rust/kernel/static_assert.rs')
-rw-r--r--rust/kernel/static_assert.rs9
1 files changed, 7 insertions, 2 deletions
diff --git a/rust/kernel/static_assert.rs b/rust/kernel/static_assert.rs
index 3115ee0ba8e9..a57ba14315a0 100644
--- a/rust/kernel/static_assert.rs
+++ b/rust/kernel/static_assert.rs
@@ -6,6 +6,10 @@
///
/// Similar to C11 [`_Static_assert`] and C++11 [`static_assert`].
///
+/// An optional panic message can be supplied after the expression.
+/// Currently only a string literal without formatting is supported
+/// due to constness limitations of the [`assert!`] macro.
+///
/// The feature may be added to Rust in the future: see [RFC 2790].
///
/// [`_Static_assert`]: https://en.cppreference.com/w/c/language/_Static_assert
@@ -25,10 +29,11 @@
/// x + 2
/// }
/// static_assert!(f(40) == 42);
+/// static_assert!(f(40) == 42, "f(x) must add 2 to the given input.");
/// ```
#[macro_export]
macro_rules! static_assert {
- ($condition:expr) => {
- const _: () = core::assert!($condition);
+ ($condition:expr $(,$arg:literal)?) => {
+ const _: () = ::core::assert!($condition $(,$arg)?);
};
}