Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
rust: ptr: replace unneeded use of `build_assert`
Since `ALIGN` is a const parameter, this assertion can be done in const
context using the `assert!` macro.
Suggested-by: Alice Ryhl <aliceryhl@google.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://patch.msgid.link/20251216-ptr_assert-v1-1-d8b2d5c5741d@nvidia.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
authored by
Alexandre Courbot
and committed by
Miguel Ojeda
84b1b49e
1b18b37a
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rust/kernel/ptr.rs
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rust/kernel/ptr.rs
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use core::mem::align_of;
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use core::num::NonZero;
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use crate::build_assert;
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/// Type representing an alignment, which is always a power of two.
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///
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/// It is used to validate that a given value is a valid alignment, and to perform masking and
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/// ```
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#[inline(always)]
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pub const fn new<const ALIGN: usize>() -> Self {
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build_assert!(
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ALIGN.is_power_of_two(),
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"Provided alignment is not a power of two."
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);
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const {
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assert!(
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ALIGN.is_power_of_two(),
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"Provided alignment is not a power of two."
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);
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}
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// INVARIANT: `align` is a power of two.
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// SAFETY: `align` is a power of two, and thus non-zero.