Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Pull InfiniBand/RDMA updates from Roland Dreier:
 - Re-enable on-demand paging changes with stable ABI
 - Fairly large set of ocrdma HW driver fixes
 - Some qib HW driver fixes
 - Other miscellaneous changes

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (43 commits)
  IB/qib: Add blank line after declaration
  IB/qib: Fix checkpatch warnings
  IB/mlx5: Enable the ODP capability query verb
  IB/core: Add on demand paging caps to ib_uverbs_ex_query_device
  IB/core: Add support for extended query device caps
  RDMA/cxgb4: Don't hang threads forever waiting on WR replies
  RDMA/ocrdma: Fix off by one in ocrdma_query_gid()
  RDMA/ocrdma: Use unsigned for bit index
  RDMA/ocrdma: Help gcc generate better code for ocrdma_srq_toggle_bit
  RDMA/ocrdma: Update the ocrdma module version string
  RDMA/ocrdma: set vlan present bit for user AH
  RDMA/ocrdma: remove reference of ocrdma_dev out of ocrdma_qp structure
  RDMA/ocrdma: Add support for interrupt moderation
  RDMA/ocrdma: Honor return value of ocrdma_resolve_dmac
  RDMA/ocrdma: Allow expansion of the SQ CQEs via buddy CQ expansion of the QP
  RDMA/ocrdma: Discontinue support of RDMA-READ-WITH-INVALIDATE
  RDMA/ocrdma: Host crash on destroying device resources
  RDMA/ocrdma: Report correct state in ibv_query_qp
  RDMA/ocrdma: Debugfs enhancments for ocrdma driver
  RDMA/ocrdma: Report correct count of interrupt vectors while registering ocrdma device
  ...

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c
index 543ecdd8667b..0176caa5792c 100644
--- a/drivers/infiniband/hw/mlx4/cq.c
+++ b/drivers/infiniband/hw/mlx4/cq.c
@@ -369,8 +369,7 @@ int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
 	int err;
 
 	mutex_lock(&cq->resize_mutex);
-
-	if (entries < 1) {
+	if (entries < 1 || entries > dev->dev->caps.max_cqes) {
 		err = -EINVAL;
 		goto out;
 	}
@@ -381,7 +380,7 @@ int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
 		goto out;
 	}
 
-	if (entries > dev->dev->caps.max_cqes) {
+	if (entries > dev->dev->caps.max_cqes + 1) {
 		err = -EINVAL;
 		goto out;
 	}
@@ -394,7 +393,7 @@ int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
 		/* Can't be smaller than the number of outstanding CQEs */
 		outst_cqe = mlx4_ib_get_outstanding_cqes(cq);
 		if (entries < outst_cqe + 1) {
-			err = 0;
+			err = -EINVAL;
 			goto out;
 		}