Re: [PATCH] PM: Hide CONFIG_PM from users
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From: Stephen Rothwell <hidden>
Date: 2011-02-07 14:13:37
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Hi Mark, On Mon, 7 Feb 2011 12:22:15 +0000 Mark Brown [off-list ref] wrote:
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diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig index 2657299..99e3c52 100644 --- a/kernel/power/Kconfig +++ b/kernel/power/Kconfig@@ -1,23 +1,6 @@ config PM - bool "Power Management support" - depends on !IA64_HP_SIM - ---help--- - "Power Management" means that parts of your computer are shut - off or put into a power conserving "sleep" mode if they are not - being used. There are two competing standards for doing this: APM - and ACPI. If you want to use either one, say Y here and then also - to the requisite support below. - - Power Management is most important for battery powered laptop - computers; if you have a laptop, check out the Linux Laptop home - page on the WWW at <http://www.linux-on-laptops.com/> or - Tuxmobil - Linux on Mobile Computers at <http://www.tuxmobil.org/> - and the Battery Powered Linux mini-HOWTO, available from - <http://www.tldp.org/docs.html#howto>. - - Note that, even if you say N here, Linux on the x86 architecture - will issue the hlt instruction if nothing is to be done, thereby - sending the processor to sleep and saving power. + bool + default y if !IA64_HP_SIM
Several powerpc configs have CONFIG_PM (implicitly) disabled (e.g. the server configs), so this will unexpectedly turn it on for them. -- Cheers, Stephen Rothwell sfr@canb.auug.org.au http://www.canb.auug.org.au/~sfr/
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