[Intel-gfx] [PATCH 02/11] drm/i915/perf: check the value of PROP_SAMPLE_OA uapi parameter

[Lionel Landwerlin]

We've been a bit loose about this opening parameter. We should only
add the flag for writing OA reports when the value of this parameter
is != 0.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin at intel.com>
---
 drivers/gpu/drm/i915/i915_perf.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 3beb24bc9277..9de935501aad 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -2747,7 +2747,8 @@ static int read_properties_unlocked(struct drm_i915_private *dev_priv,
 			props->ctx_handle = value;
 			break;
 		case DRM_I915_PERF_PROP_SAMPLE_OA:
-			props->sample_flags |= SAMPLE_OA_REPORT;
+			if (value)
+				props->sample_flags |= SAMPLE_OA_REPORT;
 			break;
 		case DRM_I915_PERF_PROP_OA_METRICS_SET:
 			if (value == 0) {
-- 
2.16.3