linux-kernel - [PATCH] x86: Add a prompt for HPET_EMULATE

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Message-Id: <20210204132043.1.I2392cf11fb353d10459958100b69d93346fa167c@changeid>
Date:   Thu,  4 Feb 2021 13:21:09 +1100
From:   Anand K Mistry <amistry@...gle.com>
To:     x86@...nel.org
Cc:     Anand K Mistry <amistry@...gle.com>,
        Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] x86: Add a prompt for HPET_EMULATE_RTC

This does two things:
1. Makes the option visible in menuconfig, allowing the user to easily
   disable this option
2. Allows olddefconfig to respoct the option if it is set in the old
   .config file

It's not clear exactly why the second consequence is true, but it
appears to be because when the conf tool reads the config file, it only
respects the existing setting if the option is "visible" (see
scripts/kconfig/symbol.c:381).

Signed-off-by: Anand K Mistry <amistry@...gle.com>
---

 arch/x86/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 21f851179ff0..28f814493c7b 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -890,6 +890,7 @@ config HPET_TIMER

 config HPET_EMULATE_RTC
 	def_bool y
+	prompt "HPET RTC emulation"
 	depends on HPET_TIMER && (RTC=y || RTC=m || RTC_DRV_CMOS=m || RTC_DRV_CMOS=y)

 config APB_TIMER
-- 
2.30.0.365.g02bc693789-goog