[PATCH 4.9 039/101] RDMA/mlx4: Discard unknown SQP work requests

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4.9-stable review patch.  If anyone has any objections, please let me know.

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

From: Leon Romanovsky <leonro@xxxxxxxxxxxx>

commit 6b1ca7ece15e94251d1d0d919f813943e4a58059 upstream.

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

Cc: <stable@xxxxxxxxxxxxxxx> # 3.6
Fixes: 37bfc7c1e83f ("IB/mlx4: SR-IOV multiplex and demultiplex MADs")
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
Signed-off-by: Doug Ledford <dledford@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 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
@@ -1897,7 +1897,6 @@ static void mlx4_ib_sqp_comp_worker(stru
 					       "buf:%lld\n", wc.wr_id);
 				break;
 			default:
-				BUG_ON(1);
 				break;
 			}
 		} else  {





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