From 22e77d81d0a9ab3aee1c5538b3f2f8a66930bfa7 Mon Sep 17 00:00:00 2001 From: Gary Guo Date: Thu, 16 Jul 2026 15:25:44 +0100 Subject: [PATCH] rust: drm: fix non-const `read8` in unit test With CONFIG_CC_OPTIMIZE_FOR_SIZE, the address validity check in non-const `read8` invocaction is not optimized away, leading to build failure. Fixes: d055768429b3 ("rust: drm: gem: shmem: Add vmap functions") Signed-off-by: Gary Guo Link: https://patch.msgid.link/20260716142545.3622278-2-gary@kernel.org Signed-off-by: Danilo Krummrich --- rust/kernel/drm/gem/shmem.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/rust/kernel/drm/gem/shmem.rs b/rust/kernel/drm/gem/shmem.rs index 580e0808d6c0..a687d46d170d 100644 --- a/rust/kernel/drm/gem/shmem.rs +++ b/rust/kernel/drm/gem/shmem.rs @@ -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(())