[PATCH AUTOSEL 4.18 042/136] include/rdma/opa_addr.h: Fix an endianness issue

[Sasha Levin]

From: Bart Van Assche <bart.vanass...@wdc.com>

[ Upstream commit 4eefd62c17a9a5e7576207e84f3d2b4f73aba750 ]

IB_MULTICAST_LID_BASE is defined as follows:

  #define IB_MULTICAST_LID_BASE   cpu_to_be16(0xC000)

Hence use be16_to_cpu() to convert it to CPU endianness. Compile-tested
only.

Fixes: af808ece5ce9 ("IB/SA: Check dlid before SA agent queries for 
ClassPortInfo")
Signed-off-by: Bart Van Assche <bart.vanass...@wdc.com>
Cc: Venkata Sandeep Dhanalakota <venkata.s.dhanalak...@intel.com>
Cc: Mike Marciniszyn <mike.marcinis...@intel.com>
Cc: Dennis Dalessandro <dennis.dalessan...@intel.com>
Signed-off-by: Jason Gunthorpe <j...@mellanox.com>
Signed-off-by: Sasha Levin <alexander.le...@microsoft.com>
---
 include/rdma/opa_addr.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/rdma/opa_addr.h b/include/rdma/opa_addr.h
index 2bbb7a67e643..66d4393d339c 100644
--- a/include/rdma/opa_addr.h
+++ b/include/rdma/opa_addr.h
@@ -120,7 +120,7 @@ static inline bool rdma_is_valid_unicast_lid(struct 
rdma_ah_attr *attr)
        if (attr->type == RDMA_AH_ATTR_TYPE_IB) {
                if (!rdma_ah_get_dlid(attr) ||
                    rdma_ah_get_dlid(attr) >=
-                   be32_to_cpu(IB_MULTICAST_LID_BASE))
+                   be16_to_cpu(IB_MULTICAST_LID_BASE))
                        return false;
        } else if (attr->type == RDMA_AH_ATTR_TYPE_OPA) {
                if (!rdma_ah_get_dlid(attr) ||
-- 
2.17.1