dmatest: use pseudo random numbers

There is no need for dmatest to drain the entropy pool.

It would be nice to one day have repeatable runs, but would need a
larger rework to synchronize and order calls to the rng across test
threads.

Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index ea82965..01ac711 100644 (file)
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -176,7 +176,7 @@ static unsigned long dmatest_random(void)
 {
        unsigned long buf;
 
-       get_random_bytes(&buf, sizeof(buf));
+       prandom_bytes(&buf, sizeof(buf));
        return buf;
 }