[PATCH 5.15 386/690] NFSD: Use xdr_pad_size()

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

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

From: Chuck Lever <chuck.lever@xxxxxxxxxx>

[ Upstream commit 5e64d85c7d0c59cfcd61d899720b8ccfe895d743 ]

Clean up: Use a helper instead of open-coding the calculation of
the XDR pad size.

Reviewed-by: Jeff Layton <jlayton@xxxxxxxxxx>
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
 fs/nfsd/nfs4xdr.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 310321b9b94cd..88e8192f9a75d 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -3948,9 +3948,8 @@ static __be32 nfsd4_encode_readv(struct nfsd4_compoundres *resp,
 {
 	struct xdr_stream *xdr = resp->xdr;
 	unsigned int starting_len = xdr->buf->len;
+	__be32 zero = xdr_zero;
 	__be32 nfserr;
-	__be32 tmp;
-	int pad;
 
 	read->rd_vlen = xdr_reserve_space_vec(xdr, resp->rqstp->rq_vec, maxcount);
 	if (read->rd_vlen < 0)
@@ -3966,11 +3965,9 @@ static __be32 nfsd4_encode_readv(struct nfsd4_compoundres *resp,
 		return nfserr_io;
 	xdr_truncate_encode(xdr, starting_len + xdr_align_size(maxcount));
 
-	tmp = xdr_zero;
-	pad = (maxcount&3) ? 4 - (maxcount&3) : 0;
-	write_bytes_to_xdr_buf(xdr->buf, starting_len + maxcount, &tmp, pad);
-	return 0;
-
+	write_bytes_to_xdr_buf(xdr->buf, starting_len + maxcount, &zero,
+			       xdr_pad_size(maxcount));
+	return nfs_ok;
 }
 
 static __be32
-- 
2.43.0







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