SUNRPC: Clean up svcauth_gss_release()
Now that upper layers use an xdr_stream to track the construction
of each RPC Reply message, resbuf->len is kept up-to-date
automatically. There's no need to recompute it in svc_gss_release().
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index b3a6717..b755e8e 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -969,12 +969,6 @@ svcauth_gss_unwrap_integ(struct svc_rqst *rqstp, u32 seq, struct gss_ctx *ctx)
return -EINVAL;
}
-static inline int
-total_buf_len(struct xdr_buf *buf)
-{
- return buf->head[0].iov_len + buf->page_len + buf->tail[0].iov_len;
-}
-
/*
* RFC 2203, Section 5.3.2.3
*
@@ -1882,14 +1876,25 @@ svcauth_gss_wrap_resp_priv(struct svc_rqst *rqstp)
return 0;
}
+/**
+ * svcauth_gss_release - Wrap payload and release resources
+ * @rqstp: RPC transaction context
+ *
+ * Return values:
+ * %0: the Reply is ready to be sent
+ * %-ENOMEM: failed to allocate memory
+ * %-EINVAL: encoding error
+ *
+ * XXX: These return values do not match the return values documented
+ * for the auth_ops ->release method in linux/sunrpc/svcauth.h.
+ */
static int
svcauth_gss_release(struct svc_rqst *rqstp)
{
- struct gss_svc_data *gsd = (struct gss_svc_data *)rqstp->rq_auth_data;
- struct rpc_gss_wire_cred *gc;
- struct xdr_buf *resbuf = &rqstp->rq_res;
- int stat = -EINVAL;
struct sunrpc_net *sn = net_generic(SVC_NET(rqstp), sunrpc_net_id);
+ struct gss_svc_data *gsd = rqstp->rq_auth_data;
+ struct rpc_gss_wire_cred *gc;
+ int stat;
if (!gsd)
goto out;
@@ -1899,10 +1904,7 @@ svcauth_gss_release(struct svc_rqst *rqstp)
/* Release can be called twice, but we only wrap once. */
if (gsd->verf_start == NULL)
goto out;
- /* normally not set till svc_send, but we need it here: */
- /* XXX: what for? Do we mess it up the moment we call svc_putu32
- * or whatever? */
- resbuf->len = total_buf_len(resbuf);
+
switch (gc->gc_svc) {
case RPC_GSS_SVC_NONE:
break;
