linux-kernel - [PATCH] Update the maximum depth of C-state from 6 to 9

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Message-ID: <8ad6ca97-c744-3fc8-8fa6-a2a390bc792d@intel.com>
Date:	Mon, 4 Jul 2016 10:20:56 +0800
From:	"baolex.ni" <baolex.ni@...el.com>
To:	corbet@....net, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc:	chuansheng.liu@...el.com, baolex.ni@...el.com
Subject: [PATCH] Update the maximum depth of C-state from 6 to 9

From: Chuansheng Liu <chuansheng.liu@...el.com>

Currently, CPUIDLE_STATE_MAX has been defined as 10 in the cpuidle head file,
and max_cstate = CPUIDLE_STATE_MAX – 1, so 9 is the right maximum depth of C-state.
This change is reflected in one place of the kernel-param file,
but not in the other place where I suggest changing.

Signed-off-by: Chuansheng Liu <chuansheng.liu@...el.com>
Signed-off-by: Baole Ni <baolex.ni@...el.com>
---
 Documentation/kernel-parameters.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 82b42c9..a863737 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1661,7 +1661,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 
 	intel_idle.max_cstate=	[KNL,HW,ACPI,X86]
 			0	disables intel_idle and fall back on acpi_idle.
-			1 to 6	specify maximum depth of C-state.
+			1 to 9	specify maximum depth of C-state.
 
 	intel_pstate=  [X86]
 		       disable
-- 
2.8.3