linux-kernel - [PATCH 3.16 105/366] RDMA/mlx4: Discard unknown SQP work requests

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Date:   Sun, 11 Nov 2018 19:49:05 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, "Leon Romanovsky" <leonro@...lanox.com>,
        "Doug Ledford" <dledford@...hat.com>
Subject: [PATCH 3.16 105/366] RDMA/mlx4: Discard unknown SQP work requests

3.16.61-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Leon Romanovsky <leonro@...lanox.com>

commit 6b1ca7ece15e94251d1d0d919f813943e4a58059 upstream.

There is no need to crash the machine if unknown work request was
received in SQP MAD.

Fixes: 37bfc7c1e83f ("IB/mlx4: SR-IOV multiplex and demultiplex MADs")
Signed-off-by: Leon Romanovsky <leonro@...lanox.com>
Signed-off-by: Doug Ledford <dledford@...hat.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/infiniband/hw/mlx4/mad.c | 1 -
 1 file changed, 1 deletion(-)

--- a/drivers/infiniband/hw/mlx4/mad.c
+++ b/drivers/infiniband/hw/mlx4/mad.c
@@ -1748,7 +1748,6 @@ static void mlx4_ib_sqp_comp_worker(stru
 					       "buf:%lld\n", wc.wr_id);
 				break;
 			default:
-				BUG_ON(1);
 				break;
 			}
 		} else  {