From: Leon Romanovsky <leonro@mellanox.com>
Date: Tue, 13 Mar 2018 15:29:25 +0200
Subject: RDMA/mlx5: Return proper value for not-supported command
Patch-mainline: v4.17-rc1
Git-commit: ea30f013765865f50fbfb6460aea2b18df19c978
References: bsc#1103991 FATE#326007

Return -EOPNOTSUPP value to the user for unsupported reg_user_mr.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/hw/mlx5/mr.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -1223,7 +1223,7 @@ struct ib_mr *mlx5_ib_reg_user_mr(struct
 	bool use_umr = true;
 
 	if (!IS_ENABLED(CONFIG_INFINIBAND_USER_MEM))
-		return ERR_PTR(-EINVAL);
+		return ERR_PTR(-EOPNOTSUPP);
 
 	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);