[PATCH v11 2/5] rust: gpu: buddy: use Alignment size constants
From: Eliot Courtney
Date: Mon Nov 09 2026 - 03:45:20 EST
Use `SizeConstants` for Alignment that are implemented now.
Reviewed-by: Alexandre Courbot <acourbot@xxxxxxxxxx>
Reviewed-by: Alice Ryhl <aliceryhl@xxxxxxxxxx>
Signed-off-by: Eliot Courtney <ecourtney@xxxxxxxxxx>
---
rust/kernel/gpu/buddy.rs | 26 +++++++++++++-------------
1 file changed, 13 insertions(+), 13 deletions(-)
diff --git a/rust/kernel/gpu/buddy.rs b/rust/kernel/gpu/buddy.rs
index d502ada6ebbd..691bb40629d4 100644
--- a/rust/kernel/gpu/buddy.rs
+++ b/rust/kernel/gpu/buddy.rs
@@ -31,11 +31,11 @@
//! let buddy = GpuBuddy::new(GpuBuddyParams {
//! base_offset: 0,
//! size: SZ_1G as u64,
-//! chunk_size: Alignment::new::<SZ_4K>(),
+//! chunk_size: Alignment::SZ_4K,
//! })?;
//!
//! assert_eq!(buddy.size(), SZ_1G as u64);
-//! assert_eq!(buddy.chunk_size(), Alignment::new::<SZ_4K>());
+//! assert_eq!(buddy.chunk_size(), Alignment::SZ_4K);
//! let initial_free = buddy.avail();
//!
//! // Allocate 16MB. Block lands at the top of the address range.
@@ -43,7 +43,7 @@
//! buddy.alloc_blocks(
//! GpuBuddyAllocMode::Simple,
//! SZ_16M as u64,
-//! Alignment::new::<SZ_16M>(),
+//! Alignment::SZ_16M,
//! GpuBuddyAllocFlags::default(),
//! ),
//! GFP_KERNEL,
@@ -74,14 +74,14 @@
//! # let buddy = GpuBuddy::new(GpuBuddyParams {
//! # base_offset: 0,
//! # size: SZ_1G as u64,
-//! # chunk_size: Alignment::new::<SZ_4K>(),
+//! # chunk_size: Alignment::SZ_4K,
//! # })?;
//! # let initial_free = buddy.avail();
//! let topdown = KBox::pin_init(
//! buddy.alloc_blocks(
//! GpuBuddyAllocMode::TopDown,
//! SZ_16M as u64,
-//! Alignment::new::<SZ_16M>(),
+//! Alignment::SZ_16M,
//! GpuBuddyAllocFlags::default(),
//! ),
//! GFP_KERNEL,
@@ -114,7 +114,7 @@
//! # let buddy = GpuBuddy::new(GpuBuddyParams {
//! # base_offset: 0,
//! # size: SZ_1G as u64,
-//! # chunk_size: Alignment::new::<SZ_4K>(),
+//! # chunk_size: Alignment::SZ_4K,
//! # })?;
//! # let initial_free = buddy.avail();
//! // Create fragmentation by allocating 4MB blocks at [0,4M) and [8M,12M).
@@ -122,7 +122,7 @@
//! buddy.alloc_blocks(
//! GpuBuddyAllocMode::Range(0..SZ_4M as u64),
//! SZ_4M as u64,
-//! Alignment::new::<SZ_4M>(),
+//! Alignment::SZ_4M,
//! GpuBuddyAllocFlags::default(),
//! ),
//! GFP_KERNEL,
@@ -133,7 +133,7 @@
//! buddy.alloc_blocks(
//! GpuBuddyAllocMode::Range(SZ_8M as u64..(SZ_8M + SZ_4M) as u64),
//! SZ_4M as u64,
-//! Alignment::new::<SZ_4M>(),
+//! Alignment::SZ_4M,
//! GpuBuddyAllocFlags::default(),
//! ),
//! GFP_KERNEL,
@@ -145,7 +145,7 @@
//! buddy.alloc_blocks(
//! GpuBuddyAllocMode::Range(0..SZ_16M as u64),
//! SZ_8M as u64,
-//! Alignment::new::<SZ_4M>(),
+//! Alignment::SZ_4M,
//! GpuBuddyAllocFlags::default(),
//! ),
//! GFP_KERNEL,
@@ -178,14 +178,14 @@
//! let small = GpuBuddy::new(GpuBuddyParams {
//! base_offset: 0,
//! size: SZ_16M as u64,
-//! chunk_size: Alignment::new::<SZ_4K>(),
+//! chunk_size: Alignment::SZ_4K,
//! })?;
//!
//! let _hole1 = KBox::pin_init(
//! small.alloc_blocks(
//! GpuBuddyAllocMode::Range(0..SZ_4M as u64),
//! SZ_4M as u64,
-//! Alignment::new::<SZ_4M>(),
+//! Alignment::SZ_4M,
//! GpuBuddyAllocFlags::default(),
//! ),
//! GFP_KERNEL,
@@ -195,7 +195,7 @@
//! small.alloc_blocks(
//! GpuBuddyAllocMode::Range(SZ_8M as u64..(SZ_8M + SZ_4M) as u64),
//! SZ_4M as u64,
-//! Alignment::new::<SZ_4M>(),
+//! Alignment::SZ_4M,
//! GpuBuddyAllocFlags::default(),
//! ),
//! GFP_KERNEL,
@@ -206,7 +206,7 @@
//! small.alloc_blocks(
//! GpuBuddyAllocMode::Simple,
//! SZ_8M as u64,
-//! Alignment::new::<SZ_4M>(),
+//! Alignment::SZ_4M,
//! GpuBuddyAllocFlag::Contiguous,
//! ),
//! GFP_KERNEL,
--
2.56.0