Make sure that the P_Key index passed into mthca_modify_qp() is
within the device's P_Key table.

Signed-off-by: Jack Morgenstein <[EMAIL PROTECTED]>
Signed-off-by: Roland Dreier <[EMAIL PROTECTED]>

---

 drivers/infiniband/hw/mthca/mthca_qp.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

applies-to: b974a31452cb645f063589262bde09b6c5b05701
d09e32764176b61c4afee9fd5e7fe04713bfa56f
diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c 
b/drivers/infiniband/hw/mthca/mthca_qp.c
index 62ff091..8b0b935 100644
--- a/drivers/infiniband/hw/mthca/mthca_qp.c
+++ b/drivers/infiniband/hw/mthca/mthca_qp.c
@@ -582,6 +582,13 @@ int mthca_modify_qp(struct ib_qp *ibqp, 
                return -EINVAL;
        }
 
+       if ((attr_mask & IB_QP_PKEY_INDEX) && 
+            attr->pkey_index >= dev->limits.pkey_table_len) {
+               mthca_dbg(dev, "PKey index (%u) too large. max is %d\n",
+                         attr->pkey_index,dev->limits.pkey_table_len-1); 
+               return -EINVAL;
+       }
+
        mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
        if (IS_ERR(mailbox))
                return PTR_ERR(mailbox);
---
0.99.9
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