Use this_cpu_ptr for the address calculation instead of __get_cpu_var.

Acked-by: Bryan Wu <cooloney@gmail.com>
Signed-off-by: Christoph Lameter <cl@linux.com>

Index: linux/drivers/leds/trigger/ledtrig-cpu.c
===================================================================
--- linux.orig/drivers/leds/trigger/ledtrig-cpu.c	2013-12-02 16:07:48.974656330 -0600
+++ linux/drivers/leds/trigger/ledtrig-cpu.c	2013-12-02 16:07:48.964656610 -0600
@@ -46,7 +46,7 @@ static DEFINE_PER_CPU(struct led_trigger
  */
 void ledtrig_cpu(enum cpu_led_event ledevt)
 {
-	struct led_trigger_cpu *trig = &__get_cpu_var(cpu_trig);
+	struct led_trigger_cpu *trig = this_cpu_ptr(&cpu_trig);
 
 	/* Locate the correct CPU LED */
 	switch (ledevt) {