linux-kernel - [tip: x86/asm] x86/asm: Rename rep_nop() to native

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Message-ID: <174496598375.31282.2315987383086713800.tip-bot2@tip-bot2>
Date: Fri, 18 Apr 2025 08:46:23 -0000
From: "tip-bot2 for Uros Bizjak" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: David Laight <david.laight.linux@...il.com>,
 Uros Bizjak <ubizjak@...il.com>, Ingo Molnar <mingo@...nel.org>,
 "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
 linux-kernel@...r.kernel.org
Subject: [tip: x86/asm] x86/asm: Rename rep_nop() to native_pause()

The following commit has been merged into the x86/asm branch of tip:

Commit-ID:     3ce4b1f1f24bbd9f1c349ecb6641dfa038bd0b5a
Gitweb:        https://git.kernel.org/tip/3ce4b1f1f24bbd9f1c349ecb6641dfa038bd0b5a
Author:        Uros Bizjak <ubizjak@...il.com>
AuthorDate:    Fri, 18 Apr 2025 10:07:43 +02:00
Committer:     Ingo Molnar <mingo@...nel.org>
CommitterDate: Fri, 18 Apr 2025 10:19:26 +02:00

x86/asm: Rename rep_nop() to native_pause()

Rename rep_nop() function to what it really does.

No functional change intended.

Suggested-by: David Laight <david.laight.linux@...il.com>
Signed-off-by: Uros Bizjak <ubizjak@...il.com>
Signed-off-by: Ingo Molnar <mingo@...nel.org>
Cc: H. Peter Anvin <hpa@...or.com>
Link: https://lore.kernel.org/r/20250418080805.83679-1-ubizjak@gmail.com
---
 arch/x86/include/asm/vdso/processor.h | 4 ++--
 arch/x86/kernel/apic/io_apic.c        | 2 +-
 arch/x86/lib/delay.c                  | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/include/asm/vdso/processor.h b/arch/x86/include/asm/vdso/processor.h
index 240d761..7000aeb 100644
--- a/arch/x86/include/asm/vdso/processor.h
+++ b/arch/x86/include/asm/vdso/processor.h
@@ -8,14 +8,14 @@
 #ifndef __ASSEMBLER__
 
 /* PAUSE is a good thing to insert into busy-wait loops. */
-static __always_inline void rep_nop(void)
+static __always_inline void native_pause(void)
 {
 	asm volatile("pause" ::: "memory");
 }
 
 static __always_inline void cpu_relax(void)
 {
-	rep_nop();
+	native_pause();
 }
 
 struct getcpu_cache;
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index eebc360..ba5a4cc 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1486,7 +1486,7 @@ static void __init delay_with_tsc(void)
 	 * 1 GHz == 40 jiffies
 	 */
 	do {
-		rep_nop();
+		native_pause();
 		now = rdtsc();
 	} while ((now - start) < 40000000000ULL / HZ &&	time_before_eq(jiffies, end));
 }
diff --git a/arch/x86/lib/delay.c b/arch/x86/lib/delay.c
index e86eda2..eb2d2e1 100644
--- a/arch/x86/lib/delay.c
+++ b/arch/x86/lib/delay.c
@@ -75,7 +75,7 @@ static void delay_tsc(u64 cycles)
 
 		/* Allow RT tasks to run */
 		preempt_enable();
-		rep_nop();
+		native_pause();
 		preempt_disable();
 
 		/*