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authorTakashi Iwai <tiwai@suse.de>2025-10-16 20:14:24 +0200
committerTakashi Iwai <tiwai@suse.de>2025-10-16 20:14:24 +0200
commitec2e0fb07d789976c601bec19ecced7a501c3705 (patch)
treed593e7b6153618ca10855a3141404e952debe73c /rust/kernel/processor.rs
parentc6fceaf166479c05f7d3158ef08e78ae3e3dfa23 (diff)
parentf1a450f9e17d341f69f8fb19f6d13ef9f1aa508b (diff)
Merge tag 'asoc-fix-v6.18-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.18 A moderately large collection of driver specific fixes, plus a few new quirks and device IDs. The NAU8821 changes are a little large but more in mechanical ways than in ways that are complex.
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diff --git a/rust/kernel/processor.rs b/rust/kernel/processor.rs
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+// SPDX-License-Identifier: GPL-2.0
+
+//! Processor related primitives.
+//!
+//! C header: [`include/linux/processor.h`](srctree/include/linux/processor.h)
+
+/// Lower CPU power consumption or yield to a hyperthreaded twin processor.
+///
+/// It also happens to serve as a compiler barrier.
+#[inline]
+pub fn cpu_relax() {
+ // SAFETY: Always safe to call.
+ unsafe { bindings::cpu_relax() }
+}