Re: [PATCH igt] igt/gem_exec_schedule: Limit smoketest to the desired engines

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On 2/10/2018 1:00 AM, Chris Wilson wrote:
We run the per-engine scheduling smoketests across all engines, the
opposite of what was intended!

Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
  tests/gem_exec_schedule.c | 12 ++++++++----
  1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/tests/gem_exec_schedule.c b/tests/gem_exec_schedule.c
index b45ba1670..ec02d9943 100644
--- a/tests/gem_exec_schedule.c
+++ b/tests/gem_exec_schedule.c
@@ -208,11 +208,15 @@ static void smoketest(int fd, unsigned ring, unsigned timeout)
  	uint32_t *ptr;
nengine = 0;
-	for_each_engine(fd, engine) {
-		if (ignore_engine(fd, engine))
-			continue;
+	if (ring == -1) {
+		for_each_engine(fd, engine) {
+			if (ignore_engine(fd, engine))
+				continue;
- engines[nengine++] = engine;
+			engines[nengine++] = engine;
+		}
+	} else {
+		engines[nengine++] = ring;
  	}
  	igt_require(nengine);

LGTM. However, do we need the random number generation(from 0 to nengine) in the following code if a single engine is selected?

Reviewed-by: vinay.belgaumkar@xxxxxxxxx

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