From: Jason Gunthorpe <jgg@mellanox.com>
Date: Thu, 11 Jan 2018 14:43:07 -0700
Subject: RDMA/qedr: Fix endian problems around imm_data
Patch-mainline: v4.16-rc1
Git-commit: 7bed7ebcb7c33eb789292f8ecc881d785b13a04c
References: bsc#1086314 FATE#324886 bsc#1086313 FATE#324885 bsc#1086301 FATE#3248881

The double swap matches what user space rdma-core does to imm_data.

wc->imm_data is not used in the kernel so this change has no practical
impact.

Acked-by: Michal Kalderon <michal.kalderon@cavium.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/hw/qedr/verbs.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/infiniband/hw/qedr/verbs.c
+++ b/drivers/infiniband/hw/qedr/verbs.c
@@ -3039,7 +3039,7 @@ static int __qedr_post_send(struct ib_qp
 		swqe->wqe_size = 2;
 		swqe2 = qed_chain_produce(&qp->sq.pbl);
 
-		swqe->inv_key_or_imm_data = cpu_to_le32(wr->ex.imm_data);
+		swqe->inv_key_or_imm_data = cpu_to_le32(be32_to_cpu(wr->ex.imm_data));
 		length = qedr_prepare_sq_send_data(dev, qp, swqe, swqe2,
 						   wr, bad_wr);
 		swqe->length = cpu_to_le32(length);
@@ -3590,7 +3590,7 @@ static inline int qedr_set_ok_cqe_resp_w
 	wc->byte_len = le32_to_cpu(resp->length);
 
 	if (resp->flags & QEDR_RESP_IMM) {
-		wc->ex.imm_data = le32_to_cpu(resp->imm_data_or_inv_r_Key);
+		wc->ex.imm_data = cpu_to_be32(le32_to_cpu(resp->imm_data_or_inv_r_Key));
 		wc->wc_flags |= IB_WC_WITH_IMM;
 
 		if (resp->flags & QEDR_RESP_RDMA)