From: Jason Gunthorpe <jgg@mellanox.com>
Date: Mon, 19 Mar 2018 17:30:43 +0000 (-0600)
Subject: RDMA/ocrdma: Fix structure layout for ocrdma_alloc_pd
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=f64705b8715a090cd5526a2c082eeb199a51e8b2;p=linux.git

RDMA/ocrdma: Fix structure layout for ocrdma_alloc_pd

The udata's for alloc_pd cannot contain u64s due to alignment
constraints. Switch the two never-used u64's to arrays of u32 to reduce
the required struct alignment to 4 bytes.

These reserved fields are totally unnecessary, never written and never
read.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
---

diff --git a/include/uapi/rdma/ocrdma-abi.h b/include/uapi/rdma/ocrdma-abi.h
index e0475d59cdf00..32ef8670583a3 100644
--- a/include/uapi/rdma/ocrdma-abi.h
+++ b/include/uapi/rdma/ocrdma-abi.h
@@ -65,7 +65,7 @@ struct ocrdma_alloc_ucontext_resp {
 };
 
 struct ocrdma_alloc_pd_ureq {
-	__u64 rsvd1;
+	__u32 rsvd[2];
 };
 
 struct ocrdma_alloc_pd_uresp {
@@ -73,7 +73,7 @@ struct ocrdma_alloc_pd_uresp {
 	__u32 dpp_enabled;
 	__u32 dpp_page_addr_hi;
 	__u32 dpp_page_addr_lo;
-	__u64 rsvd1;
+	__u32 rsvd[2];
 };
 
 struct ocrdma_create_cq_ureq {