arm: bL_switcher:k Use ktime_get_real_ns()

Use the nanoseconds based interface instead of converting from a
timespec.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: John Stultz <john.stultz@linaro.org>

1 files changed, 3 insertions, 13 deletions

diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index 490f3dced749..6eaddc47c43d 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -58,16 +58,6 @@ static int read_mpidr(void)
 }
 
 /*
- * Get a global nanosecond time stamp for tracing.
- */
-static s64 get_ns(void)
-{
-        struct timespec ts;
-        getnstimeofday(&ts);
-        return timespec_to_ns(&ts);
-}
-
-/*
  * bL switcher core code.
  */
 
@@ -224,7 +214,7 @@ static int bL_switch_to(unsigned int new_cluster_id)
          */
         local_irq_disable();
         local_fiq_disable();
-        trace_cpu_migrate_begin(get_ns(), ob_mpidr);
+        trace_cpu_migrate_begin(ktime_get_real_ns(), ob_mpidr);
 
         /* redirect GIC's SGIs to our counterpart */
         gic_migrate_target(bL_gic_id[ib_cpu][ib_cluster]);
@@ -267,7 +257,7 @@ static int bL_switch_to(unsigned int new_cluster_id)
                                           tdev->evtdev->next_event, 1);
         }
 
-        trace_cpu_migrate_finish(get_ns(), ib_mpidr);
+        trace_cpu_migrate_finish(ktime_get_real_ns(), ib_mpidr);
         local_fiq_enable();
         local_irq_enable();
 
@@ -558,7 +548,7 @@ int bL_switcher_get_logical_index(u32 mpidr)
 
 static void bL_switcher_trace_trigger_cpu(void *__always_unused info)
 {
-        trace_cpu_migrate_current(get_ns(), read_mpidr());
+        trace_cpu_migrate_current(ktime_get_real_ns(), read_mpidr());
 }
 
 int bL_switcher_trace_trigger(void)