Am 10.12.19 um 14:00 schrieb Christian König:
Am 10.12.19 um 13:53 schrieb Nirmoy Das:
entity should not keep copy and maintain sched list for
itself.
Signed-off-by: Nirmoy Das <nirmoy.das@xxxxxxx>
---
drivers/gpu/drm/scheduler/sched_entity.c | 10 +---------
1 file changed, 1 insertion(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/scheduler/sched_entity.c
b/drivers/gpu/drm/scheduler/sched_entity.c
index f9b6ce29c58f..a5f729f421f8 100644
--- a/drivers/gpu/drm/scheduler/sched_entity.c
+++ b/drivers/gpu/drm/scheduler/sched_entity.c
@@ -67,17 +67,10 @@ int drm_sched_entity_init(struct drm_sched_entity
*entity,
entity->guilty = guilty;
entity->num_sched_list = num_sched_list;
entity->priority = priority;
- entity->sched_list = kcalloc(num_sched_list,
- sizeof(struct drm_gpu_scheduler *), GFP_KERNEL);
+ entity->sched_list = sched_list;
Maybe make this "num_sched_list > 1 ? sched_list : NULL" to avoid
accidentally dereferencing a stale pointer to the stack.
- if(!entity->sched_list)
- return -ENOMEM;
init_completion(&entity->entity_idle);
-
- for (i = 0; i < num_sched_list; i++)
- entity->sched_list[i] = sched_list[i];
-
if (num_sched_list)
That check can actually be dropped as well. We return -EINVAL when the
num_sched_list is zero.
Regards,
Christian.
entity->rq =
&entity->sched_list[0]->sched_rq[entity->priority];
Forgot to note that this should then probably use
"sched_list[0]->sched_rq[entity->priority]" directly when we change the
assignment above.
Christian.
@@ -312,7 +305,6 @@ void drm_sched_entity_fini(struct
drm_sched_entity *entity)
dma_fence_put(entity->last_scheduled);
entity->last_scheduled = NULL;
- kfree(entity->sched_list);
}
EXPORT_SYMBOL(drm_sched_entity_fini);
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