From: Venki Pallipadi <venkatesh.pallipadi@xxxxxxxxx> This was writeable in 2.6.23 but the cpuidle merge made it read-only. But some people's scripts (ie: Mark's) were writing to it. As an unhappy compromise, make max_cstate writeable again if the kernel was configured without CONFIG_CPU_IDLE. http://bugzilla.kernel.org/show_bug.cgi?id=9683 Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx> Cc: Mark Lord <lkml@xxxxxx> Cc: Arjan van de Ven <arjan@xxxxxxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxx> Cc: "Rafael J. Wysocki" <rjw@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Len Brown <len.brown@xxxxxxxxx> --- drivers/acpi/processor_idle.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 2fe34cc..2235f4e 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -76,7 +76,11 @@ static void (*pm_idle_save) (void) __read_mostly; #define PM_TIMER_TICKS_TO_US(p) (((p) * 1000)/(PM_TIMER_FREQUENCY/1000)) static unsigned int max_cstate __read_mostly = ACPI_PROCESSOR_MAX_POWER; +#ifdef CONFIG_CPU_IDLE module_param(max_cstate, uint, 0000); +#else +module_param(max_cstate, uint, 0644); +#endif static unsigned int nocst __read_mostly; module_param(nocst, uint, 0000); -- 1.5.4.rc2.84.gf85fd - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
