xprtrdma: Fix use of xdr_stream_encode_item_{present, absent}
These new helpers do not return 0 on success, they return the
encoded size. Thus they are not a drop-in replacement for the
old helpers.
Fixes: 5c266df52701 ("SUNRPC: Add encoders for list item discriminators")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c
index 4a81e69..3c627dc 100644
--- a/net/sunrpc/xprtrdma/rpc_rdma.c
+++ b/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -388,7 +388,9 @@ static int rpcrdma_encode_read_list(struct rpcrdma_xprt *r_xprt,
} while (nsegs);
done:
- return xdr_stream_encode_item_absent(xdr);
+ if (xdr_stream_encode_item_absent(xdr) < 0)
+ return -EMSGSIZE;
+ return 0;
}
/* Register and XDR encode the Write list. Supports encoding a list
@@ -454,7 +456,9 @@ static int rpcrdma_encode_write_list(struct rpcrdma_xprt *r_xprt,
*segcount = cpu_to_be32(nchunks);
done:
- return xdr_stream_encode_item_absent(xdr);
+ if (xdr_stream_encode_item_absent(xdr) < 0)
+ return -EMSGSIZE;
+ return 0;
}
/* Register and XDR encode the Reply chunk. Supports encoding an array
@@ -480,8 +484,11 @@ static int rpcrdma_encode_reply_chunk(struct rpcrdma_xprt *r_xprt,
int nsegs, nchunks;
__be32 *segcount;
- if (wtype != rpcrdma_replych)
- return xdr_stream_encode_item_absent(xdr);
+ if (wtype != rpcrdma_replych) {
+ if (xdr_stream_encode_item_absent(xdr) < 0)
+ return -EMSGSIZE;
+ return 0;
+ }
seg = req->rl_segments;
nsegs = rpcrdma_convert_iovs(r_xprt, &rqst->rq_rcv_buf, 0, wtype, seg);