From: Don Hiatt <don.hiatt@intel.com>
Date: Mon, 6 Nov 2017 06:39:15 -0800
Subject: IB/core: Convert OPA AH to IB for Extended LIDs only
Patch-mainline: v4.15-rc1
Git-commit: 19b57c6c449970763bee089466119e09a17199b1
References: bsc#1046306 FATE#322942
When deciding to convert an OPA AH to IB we were incorrectly
including the IB multicast range. At this layer, all Extended
LIDs will be larger than IB_LID_PERMISSIVE. Change comparison
accordingly.
Fixes: d541e45500bd ("IB/core: Convert ah_attr from OPA to IB when copying to user")
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/core/uverbs_marshall.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/drivers/infiniband/core/uverbs_marshall.c
+++ b/drivers/infiniband/core/uverbs_marshall.c
@@ -69,8 +69,7 @@ void ib_copy_ah_attr_to_user(struct ib_d
memset(&dst->grh.reserved, 0, sizeof(dst->grh.reserved));
if ((ah_attr->type == RDMA_AH_ATTR_TYPE_OPA) &&
- (rdma_ah_get_dlid(ah_attr) >=
- be16_to_cpu(IB_MULTICAST_LID_BASE)) &&
+ (rdma_ah_get_dlid(ah_attr) > be16_to_cpu(IB_LID_PERMISSIVE)) &&
(!rdma_ah_conv_opa_to_ib(device, &conv_ah, ah_attr)))
src = &conv_ah;