From e02e968159851cbb4deb2a0555ebaa3a6e7ced3b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicol=C3=A1s=20Antinori?= <nico.antinori.7@gmail.com>
Date: Mon, 29 Jun 2026 17:10:41 -0300
Subject: [PATCH] rust: iommu: replace core::mem::zeroed with Zeroable::zeroed
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All types in `bindings` implement `Zeroable` if they can. This enables
using `Zeroable::zeroed` for `io_pgtable_cfg` initialization instead
of relying on `..unsafe { core::mem::zeroed() }`.

This change improves readability and removes an unnecessary unsafe
block.

Link: https://github.com/Rust-for-Linux/linux/issues/1189
Suggested-by: Benno Lossin <lossin@kernel.org>
Signed-off-by: Nicolás Antinori <nico.antinori.7@gmail.com>
Acked-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
 rust/kernel/iommu/pgtable.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/rust/kernel/iommu/pgtable.rs b/rust/kernel/iommu/pgtable.rs
index c88e38fd938a..eddda8d9d62a 100644
--- a/rust/kernel/iommu/pgtable.rs
+++ b/rust/kernel/iommu/pgtable.rs
@@ -102,8 +102,7 @@ impl<F: IoPageTableFmt> IoPageTable<F> {
             coherent_walk: config.coherent_walk,
             tlb: &raw const NOOP_FLUSH_OPS,
             iommu_dev: dev.as_raw(),
-            // SAFETY: All zeroes is a valid value for `struct io_pgtable_cfg`.
-            ..unsafe { core::mem::zeroed() }
+            ..Zeroable::zeroed()
         };
 
         // SAFETY: