crypto: hisilicon/zip - fix static check warning

Fix some code for PClint warning:
    Warning - Suspicious Cast
Signed-off-by: Yang Shen <shenyang39@huawei.com>
Reviewed-by: Zhou Wang <wangzhou1@hisilicon.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/hisilicon/zip/zip_crypto.c

@@ -16,7 +16,7 @@
 
 #define GZIP_HEAD_FLG_SHIFT			3
 #define GZIP_HEAD_FEXTRA_SHIFT			10
-#define GZIP_HEAD_FEXTRA_XLEN			2
+#define GZIP_HEAD_FEXTRA_XLEN			2UL
 #define GZIP_HEAD_FHCRC_SIZE			2
 
 #define HZIP_GZIP_HEAD_BUF			256
@@ -51,13 +51,13 @@ enum {
 
 struct hisi_zip_req {
 	struct acomp_req *req;
-	int sskip;
-	int dskip;
+	u32 sskip;
+	u32 dskip;
 	struct hisi_acc_hw_sgl *hw_src;
 	struct hisi_acc_hw_sgl *hw_dst;
 	dma_addr_t dma_src;
 	dma_addr_t dma_dst;
-	int req_id;
+	u16 req_id;
 };
 
 struct hisi_zip_req_q {
@@ -119,7 +119,7 @@ static void hisi_zip_config_tag(struct hisi_zip_sqe *sqe, u32 tag)
 
 static void hisi_zip_fill_sqe(struct hisi_zip_sqe *sqe, u8 req_type,
 			      dma_addr_t s_addr, dma_addr_t d_addr, u32 slen,
-			      u32 dlen, int sskip, int dskip)
+			      u32 dlen, u32 sskip, u32 dskip)
 {
 	memset(sqe, 0, sizeof(struct hisi_zip_sqe));
 
@@ -573,7 +573,7 @@ static int hisi_zip_acompress(struct acomp_req *acomp_req)
 		return head_size;
 	}
 
-	req = hisi_zip_create_req(acomp_req, qp_ctx, (size_t)head_size, true);
+	req = hisi_zip_create_req(acomp_req, qp_ctx, head_size, true);
 	if (IS_ERR(req))
 		return PTR_ERR(req);