From: Bart Van Assche <bart.vanassche@wdc.com>
Date: Mon, 2 Jul 2018 17:06:51 +0000 (-0700)
Subject: include/rdma/opa_addr.h: Fix an endianness issue
X-Git-Tag: v4.19~309^2~226
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4eefd62c17a9a5e7576207e84f3d2b4f73aba750;p=platform%2Fkernel%2Flinux-rpi.git

include/rdma/opa_addr.h: Fix an endianness issue

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.vanassche@wdc.com>
Cc: Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@intel.com>
Cc: Mike Marciniszyn <mike.marciniszyn@intel.com>
Cc: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
---

diff --git a/include/rdma/opa_addr.h b/include/rdma/opa_addr.h
index 2bbb7a6..66d4393 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) ||