linux-kernel - [PATCH] arch/x86/Kconfig: specify idle=poll instead of no-hlt

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Message-Id: <20220713160840.1577569-1-steve@sk2.org>
Date:   Wed, 13 Jul 2022 18:08:40 +0200
From:   Stephen Kitt <steve@....org>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>
Cc:     Stephen Kitt <steve@....org>, linux-kernel@...r.kernel.org
Subject: [PATCH] arch/x86/Kconfig: specify idle=poll instead of no-hlt

Commit 27be45700021 ("x86 idle: remove 32-bit-only "no-hlt" parameter,
hlt_works_ok flag") removed no-hlt, but CONFIG_APM still refers to
it. Suggest "idle=poll" instead, based on the commit message:

> If a user wants to avoid HLT, then "idle=poll"
> is much more useful, as it avoids invocation of HLT
> in idle, while "no-hlt" failed to do so.

Signed-off-by: Stephen Kitt <steve@....org>
---
 arch/x86/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index a293a30e4cdd..bb4fa31bec4d 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -2517,7 +2517,7 @@ menuconfig APM
 
 	  1) make sure that you have enough swap space and that it is
 	  enabled.
-	  2) pass the "no-hlt" option to the kernel
+	  2) pass the "idle=poll" option to the kernel
 	  3) switch on floating point emulation in the kernel and pass
 	  the "no387" option to the kernel
 	  4) pass the "floppy=nodma" option to the kernel

base-commit: 50fd82b3a9a9335df5d50c7ddcb81c81d358c4fc
-- 
2.31.1