From: Yilin Chen <1479826151@qq.com>
Date: Sun, 28 Dec 2025 16:52:34 +0000 (+0800)
Subject: rust: dma: remove incorrect safety documentation
X-Git-Tag: v6.19-rc5~9^2~6
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=68ece1e2ce3a1cb0aac9f5af685cf18fa2fa31aa;p=thirdparty%2Fkernel%2Flinux.git

rust: dma: remove incorrect safety documentation

Removes a safety requirement that incorrectly states callers must
ensure the device does not access memory while the returned slice
is live, as this method doesn't return a slice.

Fixes: d37a39f607c4 ("rust: dma: add as_slice/write functions for CoherentAllocation")
Signed-off-by: Yilin Chen <1479826151@qq.com>
Link: https://patch.msgid.link/tencent_5195C0324923A2B67DEF8AE4B8E139BCB105@qq.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
---

diff --git a/rust/kernel/dma.rs b/rust/kernel/dma.rs
index 84d3c67269e8..2ac107d8f7b7 100644
--- a/rust/kernel/dma.rs
+++ b/rust/kernel/dma.rs
@@ -532,8 +532,6 @@ impl<T: AsBytes + FromBytes> CoherentAllocation<T> {
     ///
     /// # Safety
     ///
-    /// * Callers must ensure that the device does not read/write to/from memory while the returned
-    ///   slice is live.
     /// * Callers must ensure that this call does not race with a read or write to the same region
     ///   that overlaps with this write.
     ///