Smatch warns that we may iterate over an empty array of gt->engines[].
One hopes that this is impossible, but nevertheless we can simply
appease smatch by initialising the timestamp to zero before we starting
probing the engines.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/gt/intel_rps.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_rps.c b/drivers/gpu/drm/i915/gt/intel_rps.c
index bdece932592b..296391deeb94 100644
--- a/drivers/gpu/drm/i915/gt/intel_rps.c
+++ b/drivers/gpu/drm/i915/gt/intel_rps.c
@@ -51,10 +51,11 @@ static void rps_timer(struct timer_list *t)
{
struct intel_rps *rps = from_timer(rps, t, timer);
struct intel_engine_cs *engine;
+ ktime_t dt, last, timestamp;
enum intel_engine_id id;
s64 max_busy[3] = {};
- ktime_t dt, timestamp, last;
+ timestamp = 0;
for_each_engine(engine, rps_to_gt(rps), id) {
s64 busy;
int i;
@@ -69,7 +70,6 @@ static void rps_timer(struct timer_list *t)
swap(busy, max_busy[i]);
}
}
-
last = rps->pm_timestamp;
rps->pm_timestamp = timestamp;
--
2.20.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
