SUNRPC: Silence compiler complaints about tautological comparisons

On 64-bit systems, the compiler will complain that the comparison
between SIZE_MAX and the 32-bit unsigned int 'len' is unnecessary.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index 896a6d2..2f8dc47 100644 (file)
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -779,7 +779,7 @@ xdr_stream_decode_uint32_array(struct xdr_stream *xdr,
 
        if (unlikely(xdr_stream_decode_u32(xdr, &len) < 0))
                return -EBADMSG;
-       if (len > SIZE_MAX / sizeof(*p))
+       if (U32_MAX >= SIZE_MAX / sizeof(*p) && len > SIZE_MAX / sizeof(*p))
                return -EBADMSG;
        p = xdr_inline_decode(xdr, len * sizeof(*p));
        if (unlikely(!p))