From f2846481b4bf758cf7c3fe8f24b35950306f1db2 Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Wed, 21 Jan 2015 11:02:29 -0500
Subject: xprtrdma: Clean up hdrlen

Clean up: Replace naked integers with a documenting macro.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
---
 include/linux/sunrpc/rpc_rdma.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'include/linux/sunrpc')

diff --git a/include/linux/sunrpc/rpc_rdma.h b/include/linux/sunrpc/rpc_rdma.h
index 1578ed241c19..f33c5a4d6fe4 100644
--- a/include/linux/sunrpc/rpc_rdma.h
+++ b/include/linux/sunrpc/rpc_rdma.h
@@ -98,7 +98,10 @@ struct rpcrdma_msg {
 	} rm_body;
 };
 
-#define RPCRDMA_HDRLEN_MIN	28
+/*
+ * Smallest RPC/RDMA header: rm_xid through rm_type, then rm_nochunks
+ */
+#define RPCRDMA_HDRLEN_MIN	(sizeof(__be32) * 7)
 
 enum rpcrdma_errcode {
 	ERR_VERS = 1,
-- 
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