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Subject: [PATCH 12/29] lockd: Update the NLMv1 FREE_ALL arguments decoder to
 use struct xdr_stream
From:   Chuck Lever <chuck.lever@oracle.com>
To:     bfields@fieldses.org
Cc:     linux-nfs@vger.kernel.org
Date:   Thu, 03 Jun 2021 16:51:46 -0400
Message-ID: <162275350648.32691.4175906018826146484.stgit@klimt.1015granger.net>
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Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
---
 fs/lockd/xdr.c |   28 +++++++++++++++-------------
 1 file changed, 15 insertions(+), 13 deletions(-)

diff --git a/fs/lockd/xdr.c b/fs/lockd/xdr.c
index c496f18eff06..091c8c463ab4 100644
--- a/fs/lockd/xdr.c
+++ b/fs/lockd/xdr.c
@@ -316,6 +316,21 @@ nlmsvc_decode_shareargs(struct svc_rqst *rqstp, __be32 *p)
 	return 1;
 }
 
+int
+nlmsvc_decode_notify(struct svc_rqst *rqstp, __be32 *p)
+{
+	struct xdr_stream *xdr = &rqstp->rq_arg_stream;
+	struct nlm_args *argp = rqstp->rq_argp;
+	struct nlm_lock	*lock = &argp->lock;
+
+	if (!svcxdr_decode_string(xdr, &lock->caller, &lock->len))
+		return 0;
+	if (xdr_stream_decode_u32(xdr, &argp->state) < 0)
+		return 0;
+
+	return 1;
+}
+
 int
 nlmsvc_encode_testres(struct svc_rqst *rqstp, __be32 *p)
 {
@@ -349,19 +364,6 @@ nlmsvc_encode_res(struct svc_rqst *rqstp, __be32 *p)
 	return xdr_ressize_check(rqstp, p);
 }
 
-int
-nlmsvc_decode_notify(struct svc_rqst *rqstp, __be32 *p)
-{
-	struct nlm_args *argp = rqstp->rq_argp;
-	struct nlm_lock	*lock = &argp->lock;
-
-	if (!(p = xdr_decode_string_inplace(p, &lock->caller,
-					    &lock->len, NLM_MAXSTRLEN)))
-		return 0;
-	argp->state = ntohl(*p++);
-	return xdr_argsize_check(rqstp, p);
-}
-
 int
 nlmsvc_encode_void(struct svc_rqst *rqstp, __be32 *p)
 {