NFS: Use NFS4_MAX_SESSIONID_LEN directly for decode/encode sessionid

It's no need to define a temporary variables for NFS4_MAX_SESSIONID_LEN.

Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index e87d7f0f4e230608b7dc4c3b83171fc4b0af429f..09aeb9a47dac50f22ca01cac82f48544bc492f75 100644 (file)
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -380,13 +380,12 @@ static __be32 decode_sessionid(struct xdr_stream *xdr,
                                 struct nfs4_sessionid *sid)
 {
        __be32 *p;
-       int len = NFS4_MAX_SESSIONID_LEN;
 
-       p = read_buf(xdr, len);
+       p = read_buf(xdr, NFS4_MAX_SESSIONID_LEN);
        if (unlikely(p == NULL))
                return htonl(NFS4ERR_RESOURCE);
 
-       memcpy(sid->data, p, len);
+       memcpy(sid->data, p, NFS4_MAX_SESSIONID_LEN);
        return 0;
 }
 
@@ -679,13 +678,12 @@ static __be32 encode_sessionid(struct xdr_stream *xdr,
                                 const struct nfs4_sessionid *sid)
 {
        __be32 *p;
-       int len = NFS4_MAX_SESSIONID_LEN;
 
-       p = xdr_reserve_space(xdr, len);
+       p = xdr_reserve_space(xdr, NFS4_MAX_SESSIONID_LEN);
        if (unlikely(p == NULL))
                return htonl(NFS4ERR_RESOURCE);
 
-       memcpy(p, sid, len);
+       memcpy(p, sid, NFS4_MAX_SESSIONID_LEN);
        return 0;
 }