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Commit 0fea615e authored by Harald Welte's avatar Harald Welte Committed by Linus Torvalds
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CPUFREQ: Mark e_powersaver driver as EXPERIMENTAL and DANGEROUS 



The e_powersaver driver for VIA's C7 CPU's needs to be marked as
DANGEROUS as it configures the CPU to power states that are out
of specification.

According to Centaur, all systems with C7 and Nano CPU's support
the ACPI p-state method.  Thus, the acpi-cpufreq driver should
be used instead.

Signed-off-by: default avatarHarald Welte <HaraldWelte@viatech.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 0de51088

arch/x86/kernel/cpu/cpufreq/Kconfig

+6 −3
Original line number Diff line number Diff line
@@ -220,11 +220,14 @@ config X86_LONGHAUL 
	  If in doubt, say N.



config X86_E_POWERSAVER

	tristate "VIA C7 Enhanced PowerSaver"

	tristate "VIA C7 Enhanced PowerSaver (DANGEROUS)"

	select CPU_FREQ_TABLE

	depends on X86_32

	depends on X86_32 && EXPERIMENTAL

	help

	  This adds the CPUFreq driver for VIA C7 processors.

	  This adds the CPUFreq driver for VIA C7 processors.  However, this driver

	  does not have any safeguards to prevent operating the CPU out of spec

	  and is thus considered dangerous.  Please use the regular ACPI cpufreq

	  driver, enabled by CONFIG_X86_ACPI_CPUFREQ.



	  If in doubt, say N.