[PATCH 5.10 077/770] NFSD: Replace READ* macros in nfsd4_decode_sequence()

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5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Chuck Lever <chuck.lever@xxxxxxxxxx>

[ Upstream commit cf907b11326d9360877d6c6ea8f75e1b29f39f2f ]

Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 fs/nfsd/nfs4xdr.c | 36 ++++++++++++++++++++----------------
 1 file changed, 20 insertions(+), 16 deletions(-)

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 0561b43855839..3fe0d0228c4ac 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1738,22 +1738,6 @@ nfsd4_decode_free_stateid(struct nfsd4_compoundargs *argp,
 	return nfsd4_decode_stateid4(argp, &free_stateid->fr_stateid);
 }
 
-static __be32
-nfsd4_decode_sequence(struct nfsd4_compoundargs *argp,
-		      struct nfsd4_sequence *seq)
-{
-	DECODE_HEAD;
-
-	READ_BUF(NFS4_MAX_SESSIONID_LEN + 16);
-	COPYMEM(seq->sessionid.data, NFS4_MAX_SESSIONID_LEN);
-	seq->seqid = be32_to_cpup(p++);
-	seq->slotid = be32_to_cpup(p++);
-	seq->maxslots = be32_to_cpup(p++);
-	seq->cachethis = be32_to_cpup(p++);
-
-	DECODE_TAIL;
-}
-
 static __be32
 nfsd4_decode_test_stateid(struct nfsd4_compoundargs *argp, struct nfsd4_test_stateid *test_stateid)
 {
@@ -1915,6 +1899,26 @@ static __be32 nfsd4_decode_secinfo_no_name(struct nfsd4_compoundargs *argp,
 	return nfs_ok;
 }
 
+static __be32
+nfsd4_decode_sequence(struct nfsd4_compoundargs *argp,
+		      struct nfsd4_sequence *seq)
+{
+	__be32 *p, status;
+
+	status = nfsd4_decode_sessionid4(argp, &seq->sessionid);
+	if (status)
+		return status;
+	p = xdr_inline_decode(argp->xdr, XDR_UNIT * 4);
+	if (!p)
+		return nfserr_bad_xdr;
+	seq->seqid = be32_to_cpup(p++);
+	seq->slotid = be32_to_cpup(p++);
+	seq->maxslots = be32_to_cpup(p++);
+	seq->cachethis = be32_to_cpup(p);
+
+	return nfs_ok;
+}
+
 static __be32
 nfsd4_decode_fallocate(struct nfsd4_compoundargs *argp,
 		       struct nfsd4_fallocate *fallocate)
-- 
2.43.0







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