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rust: drm: fix non-const read8 in unit test

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With CONFIG_CC_OPTIMIZE_FOR_SIZE, the address validity check in non-const
`read8` invocaction is not optimized away, leading to build failure.

Fixes: d055768429 ("rust: drm: gem: shmem: Add vmap functions")
Signed-off-by: Gary Guo <gary@garyguo.net>
Link: https://patch.msgid.link/20260716142545.3622278-2-gary@kernel.org
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
This commit is contained in:
Gary Guo 2026-07-16 15:25:44 +01:00 committed by Danilo Krummrich
parent ce2d97f714
commit 22e77d81d0
1 changed files with 1 additions and 1 deletions
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2
rust/kernel/drm/gem/shmem.rs
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@ -688,7 +688,7 @@ fn vmap_io() -> Result {
// Ensure the ordering in memory is correct
let expected = 0xFEDCBA98_u32.to_ne_bytes().into_iter();
for (offset, expected) in (0x20..=0x23).zip(expected) {
assert_eq!(vmap.read8(offset), expected);
assert_eq!(vmap.try_read8(offset).unwrap(), expected);
}
Ok(())