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authorRhys Lloyd <krakow20@gmail.com>2025-07-18 10:36:25 +0300
committerAlexandre Courbot <acourbot@nvidia.com>2025-08-12 03:58:23 +0300
commit2872c8982c80e22f9a7fc4db7d8f0e8188ab4cd7 (patch)
tree6ce6d16dbd6aaa2a0daa4ba431821db8729f5566 /drivers/gpu/nova-core
parent0f85b6c1cb5746180b2bf674a436a48e6722e7ed (diff)
downloadlinux-2872c8982c80e22f9a7fc4db7d8f0e8188ab4cd7.tar.xz
gpu: nova-core: vbios: change PmuLookupTableEntry to use size_of
Annotate the PmuLookupTableEntry with an `#[repr(C, packed)]` attribute. Removes another magic number by making the struct the same size as the data it needs to read, allowing the use of `size_of::<PmuLookupTableEntry>()` [acourbot@nvidia.com: remove `dead_code` expect to fix `unfulfilled_lint_expectations` lint] Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Rhys Lloyd <krakow20@gmail.com> Link: https://lore.kernel.org/r/20250718073633.194032-3-krakow20@gmail.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Diffstat (limited to 'drivers/gpu/nova-core')
-rw-r--r--drivers/gpu/nova-core/vbios.rs4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/nova-core/vbios.rs b/drivers/gpu/nova-core/vbios.rs
index b4bca1919d8f..50fbea69fc00 100644
--- a/drivers/gpu/nova-core/vbios.rs
+++ b/drivers/gpu/nova-core/vbios.rs
@@ -892,7 +892,7 @@ impl TryFrom<BiosImageBase> for PciAtBiosImage {
/// The [`PmuLookupTableEntry`] structure is a single entry in the [`PmuLookupTable`].
///
/// See the [`PmuLookupTable`] description for more information.
-#[expect(dead_code)]
+#[repr(C, packed)]
struct PmuLookupTableEntry {
application_id: u8,
target_id: u8,
@@ -901,7 +901,7 @@ struct PmuLookupTableEntry {
impl PmuLookupTableEntry {
fn new(data: &[u8]) -> Result<Self> {
- if data.len() < 6 {
+ if data.len() < core::mem::size_of::<Self>() {
return Err(EINVAL);
}