nfsd: remove set but not used variable 'len'

Fixes gcc '-Wunused-but-set-variable' warning:

fs/nfsd/nfs4xdr.c: In function nfsd4_encode_splice_read:
fs/nfsd/nfs4xdr.c:3464:7: warning: variable len set but not used [-Wunused-but-set-variable]

It is not used since commit 83a63072c815 ("nfsd: fix nfs read eof detection")

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 533d0fc..1883370 100644 (file)
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -3461,7 +3461,6 @@ static __be32 nfsd4_encode_splice_read(
        struct xdr_stream *xdr = &resp->xdr;
        struct xdr_buf *buf = xdr->buf;
        u32 eof;
-       long len;
        int space_left;
        __be32 nfserr;
        __be32 *p = xdr->p - 2;
@@ -3470,7 +3469,6 @@ static __be32 nfsd4_encode_splice_read(
        if (xdr->end - xdr->p < 1)
                return nfserr_resource;
 
-       len = maxcount;
        nfserr = nfsd_splice_read(read->rd_rqstp, read->rd_fhp,
                                  file, read->rd_offset, &maxcount, &eof);
        read->rd_length = maxcount;