gpu: host1x: do not check previously handled gathers

When patching gathers, we don't need to check against
gathers with lower indices than the current one, as
they are guaranteed to already have been handled.
Signed-off-by: NErik Faye-Lund <kusmabite@gmail.com>
Acked-By: NTerje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>

drivers/gpu/host1x/job.c

@@ -538,7 +538,7 @@ int host1x_job_pin(struct host1x_job *job, struct device *dev)
 
 		g->base = job->gather_addr_phys[i];
 
-		for (j = 0; j < job->num_gathers; j++)
+		for (j = i + 1; j < job->num_gathers; j++)
 			if (job->gathers[j].bo == g->bo)
 				job->gathers[j].handled = true;