diff options
| author | Uros Bizjak <ubizjak@gmail.com> | 2025-04-18 11:33:59 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2025-05-05 11:26:34 +0300 |
| commit | 304c9f7f8f439083c56846c4433fbab7467eb01e (patch) | |
| tree | 554de7c8ad4ad34edb53ae32e6ba2a8b14c4c71b | |
| parent | 9c88156b2c81dc317297494e879f814e6574330a (diff) | |
| download | linux-304c9f7f8f439083c56846c4433fbab7467eb01e.tar.xz | |
um/asm: Replace "REP; NOP" with PAUSE mnemonic
Current minimum required version of binutils is 2.25,
which supports PAUSE instruction mnemonic.
Replace "REP; NOP" with this proper mnemonic.
No functional change intended.
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: David Laight <david.laight.linux@gmail.com>
Link: https://patch.msgid.link/20250418083436.133148-2-ubizjak@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | arch/x86/um/asm/processor.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/um/asm/processor.h b/arch/x86/um/asm/processor.h index d50549e0089c..e222d2ae28fd 100644 --- a/arch/x86/um/asm/processor.h +++ b/arch/x86/um/asm/processor.h @@ -21,10 +21,10 @@ #include <asm/user.h> -/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */ +/* PAUSE is a good thing to insert into busy-wait loops. */ static __always_inline void native_pause(void) { - __asm__ __volatile__("rep;nop": : :"memory"); + __asm__ __volatile__("pause": : :"memory"); } static __always_inline void cpu_relax(void) |