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path: root/drivers/infiniband/hw/mlx5/mr.c
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Diffstat (limited to 'drivers/infiniband/hw/mlx5/mr.c')
-rw-r--r--drivers/infiniband/hw/mlx5/mr.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index d109fe8290a7..1961c6a45437 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -1206,6 +1206,9 @@ struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
int err;
bool use_umr = true;
+ if (!IS_ENABLED(CONFIG_INFINIBAND_USER_MEM))
+ return ERR_PTR(-EINVAL);
+
mlx5_ib_dbg(dev, "start 0x%llx, virt_addr 0x%llx, length 0x%llx, access_flags 0x%x\n",
start, virt_addr, length, access_flags);
@@ -1813,7 +1816,6 @@ mlx5_ib_sg_to_klms(struct mlx5_ib_mr *mr,
mr->ibmr.iova = sg_dma_address(sg) + sg_offset;
mr->ibmr.length = 0;
- mr->ndescs = sg_nents;
for_each_sg(sgl, sg, sg_nents, i) {
if (unlikely(i >= mr->max_descs))
@@ -1825,6 +1827,7 @@ mlx5_ib_sg_to_klms(struct mlx5_ib_mr *mr,
sg_offset = 0;
}
+ mr->ndescs = i;
if (sg_offset_p)
*sg_offset_p = sg_offset;