IB/qib: Fix sparse RCU warnings in qib_keys.c

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / infiniband / hw / qib / qib_keys.c

diff --git a/drivers/infiniband/hw/qib/qib_keys.c b/drivers/infiniband/hw/qib/qib_keys.c
index 970165b..e9486c7 100644 (file)
--- a/drivers/infiniband/hw/qib/qib_keys.c
+++ b/drivers/infiniband/hw/qib/qib_keys.c
@@ -349,7 +349,9 @@ int qib_fast_reg_mr(struct qib_qp *qp, struct ib_send_wr *wr)
        if (pd->user || rkey == 0)
                goto bail;
 
-       mr = rkt->table[(rkey >> (32 - ib_qib_lkey_table_size))];
+       mr = rcu_dereference_protected(
+               rkt->table[(rkey >> (32 - ib_qib_lkey_table_size))],
+               lockdep_is_held(&rkt->lock));
        if (unlikely(mr == NULL || qp->ibqp.pd != mr->pd))
                goto bail;