From: Chuck Lever <chuck.lever@oracle.com>
Date: Tue, 1 Mar 2016 18:06:29 +0000 (-0500)
Subject: rpcrdma: Add RPCRDMA_HDRLEN_ERR
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=c6db03ea577846a72dc80638f4a70b392c21962f;p=linux-beck.git

rpcrdma: Add RPCRDMA_HDRLEN_ERR

Error headers are shorter than either RDMA_MSG or RDMA_NOMSG.

Since HDRLEN_MIN is already used in several other places that would
be annoying to change, add RPCRDMA_HDRLEN_ERR for the one or two
spots where the shorter length is needed.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Devesh Sharma <devesh.sharma@broadcom.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---

diff --git a/include/linux/sunrpc/rpc_rdma.h b/include/linux/sunrpc/rpc_rdma.h
index f33c5a4d6fe4..8c6d23cb0cae 100644
--- a/include/linux/sunrpc/rpc_rdma.h
+++ b/include/linux/sunrpc/rpc_rdma.h
@@ -102,6 +102,7 @@ struct rpcrdma_msg {
  * Smallest RPC/RDMA header: rm_xid through rm_type, then rm_nochunks
  */
 #define RPCRDMA_HDRLEN_MIN	(sizeof(__be32) * 7)
+#define RPCRDMA_HDRLEN_ERR	(sizeof(__be32) * 5)
 
 enum rpcrdma_errcode {
 	ERR_VERS = 1,