linux-kernel - [PATCH] ACPI: Kconfig: Provide help text for the ACPI

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Date:   Thu, 01 Jul 2021 18:34:52 +0200
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Linux ACPI <linux-acpi@...r.kernel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>, Borislav Petkov <bp@...e.de>
Subject: [PATCH] ACPI: Kconfig: Provide help text for the ACPI_PRMT option

From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

Add missing help text for CONFIG_ACPI_PRMT.

Fixes: cefc7ca46235 ("ACPI: PRM: implement OperationRegion handler for the PlatformRtMechanism subtype")
Reported-by: Borislav Petkov <bp@...en8.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
 drivers/acpi/Kconfig |   10 ++++++++++
 1 file changed, 10 insertions(+)

Index: linux-pm/drivers/acpi/Kconfig
===================================================================
--- linux-pm.orig/drivers/acpi/Kconfig
+++ linux-pm/drivers/acpi/Kconfig
@@ -548,3 +548,13 @@ config ACPI_PRMT
 	bool "Platform Runtime Mechanism Support"
 	depends on EFI && X86_64
 	default y
+	help
+	  Platform Runtime Mechanism (PRM) is a firmware interface exposing a
+	  set of binary executables that can be called from the AML interpreter
+	  or directly from device drivers.
+
+	  Say Y to enable the AML interpreter to execute the PRM code.
+
+	  While this feature is optional in principle, leaving it out may
+	  substantially increase computational overhead related to the
+	  initialization of some server systems.