[PATCH 15/22] gpu: host1x: Forbid RESTART opcode in the firewall

[Dmitry Osipenko]

The RESTART opcode terminates the gather and restarts the CDMA fetching from
a specified word << 2 relative to the CDMA start address. That shouldn't be
allowed to be done by userspace.

Signed-off-by: Dmitry Osipenko <digetx at gmail.com>
Reviewed-by: Erik Faye-Lund <kusmabite at gmail.com>
---
 drivers/gpu/host1x/job.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c
index 1a1568e64ba8..cf335c5979e2 100644
--- a/drivers/gpu/host1x/job.c
+++ b/drivers/gpu/host1x/job.c
@@ -497,7 +497,6 @@ static int validate(struct host1x_firewall *fw, struct host1x_job_gather *g)
 				goto out;
 			break;
 		case 4:
-		case 5:
 		case 14:
 			break;
 		default:
-- 
2.13.0