[ 38/82] ACPI processor: Fix tick_broadcast_mask online/offline regression

[Greg Kroah-Hartman]

From: Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>

3.5-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Feng Tang <feng.tang@xxxxxxxxx>

commit b7db60f45d74497c723dc7ae1370cf0b37dfb0d8 upstream.

In commit 99b725084 "ACPI processor hotplug: Delay acpi_processor_start()
call for hotplugged cores", acpi_processor_hotplug(pr) was wrongly replaced
by acpi_processor_cst_has_changed() inside the acpi_cpu_soft_notify(). This
patch will restore it back, fixing the tick_broadcast_mask regression:
	https://lkml.org/lkml/2012/7/30/169

Signed-off-by: Feng Tang <feng.tang@xxxxxxxxx>
Cc: Thomas Renninger <trenn@xxxxxxx>
Reviewed-by: Rafael J. Wysocki <rjw@xxxxxxx>
Reviewed-by: Deepthi Dharwar <deepthi@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Len Brown <len.brown@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/acpi/processor_driver.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -442,7 +442,7 @@ static int acpi_cpu_soft_notify(struct n
 		/* Normal CPU soft online event */
 		} else {
 			acpi_processor_ppc_has_changed(pr, 0);
-			acpi_processor_cst_has_changed(pr);
+			acpi_processor_hotplug(pr);
 			acpi_processor_reevaluate_tstate(pr, action);
 			acpi_processor_tstate_has_changed(pr);
 		}


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