From: Michael Guralnik <michaelgur@mellanox.com>
Date: Wed, 8 Jan 2020 20:05:37 +0200
Subject: RDMA/efa: Allow passing of optional access flags for MR registration
Patch-mainline: v5.6-rc1
Git-commit: 86dd738cf20cee4ac316274743e5707c4ccb6039
References: jsc#SLE-5640

As part of adding a range of optional access flags that drivers need to be
able to accept, mask this range inside efa driver.  This will prevent the
driver from failing when an access flag from that range is passed.

Link: https://lore.kernel.org/r/1578506740-22188-8-git-send-email-yishaih@mellanox.com
Signed-off-by: Michael Guralnik <michaelgur@mellanox.com>
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/hw/efa/efa_verbs.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/infiniband/hw/efa/efa_verbs.c
+++ b/drivers/infiniband/hw/efa/efa_verbs.c
@@ -1367,6 +1367,7 @@ struct ib_mr *efa_reg_mr(struct ib_pd *i
 		IB_ACCESS_LOCAL_WRITE |
 		(is_rdma_read_cap(dev) ? IB_ACCESS_REMOTE_READ : 0);
 
+	access_flags &= ~IB_UVERBS_ACCESS_OPTIONAL_RANGE;
 	if (access_flags & ~supp_access_flags) {
 		ibdev_dbg(&dev->ibdev,
 			  "Unsupported access flags[%#x], supported[%#x]\n",