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-rw-r--r--kernel/trace/trace_benchmark.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/kernel/trace/trace_benchmark.c b/kernel/trace/trace_benchmark.c
index 54d5fa35c9..811b084394 100644
--- a/kernel/trace/trace_benchmark.c
+++ b/kernel/trace/trace_benchmark.c
@@ -92,7 +92,6 @@ static void trace_do_benchmark(void)
bm_total += delta;
bm_totalsq += delta * delta;
-
if (bm_cnt > 1) {
/*
* Apply Welford's method to calculate standard deviation:
@@ -105,7 +104,7 @@ static void trace_do_benchmark(void)
stddev = 0;
delta = bm_total;
- do_div(delta, bm_cnt);
+ delta = div64_u64(delta, bm_cnt);
avg = delta;
if (stddev > 0) {
@@ -127,7 +126,7 @@ static void trace_do_benchmark(void)
seed = stddev;
if (!last_seed)
break;
- do_div(seed, last_seed);
+ seed = div64_u64(seed, last_seed);
seed += last_seed;
do_div(seed, 2);
} while (i++ < 10 && last_seed != seed);