nfs: nfs4xdr: introduce print_overflow_msg

Part fo the nfs4xdr cleanup.  READ_BUF will go away.

Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 0c26bb2..8255ec7 100644 (file)
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -2441,14 +2441,18 @@ static int nfs4_xdr_enc_get_lease_time(struct rpc_rqst *req, uint32_t *p,
 #define READ_BUF(nbytes)  do { \
        p = xdr_inline_decode(xdr, nbytes); \
        if (unlikely(!p)) { \
-               dprintk("nfs: %s: prematurely hit end of receive" \
-                               " buffer\n", __func__); \
-               dprintk("nfs: %s: xdr->p=%p, bytes=%u, xdr->end=%p\n", \
-                               __func__, xdr->p, nbytes, xdr->end); \
+               print_overflow_msg(__func__, xdr); \
                return -EIO; \
        } \
 } while (0)
 
+static void print_overflow_msg(const char *func, const struct xdr_stream *xdr)
+{
+       dprintk("nfs: %s: prematurely hit end of receive buffer. "
+               "Remaining buffer length is %tu words.\n",
+               func, xdr->end - xdr->p);
+}
+
 static int decode_opaque_inline(struct xdr_stream *xdr, unsigned int *len, char **string)
 {
        __be32 *p;