net: hix5hd2_gmac: avoid integer overload warning

BITS_RX_EN is an 'unsigned long' constant, so the ones complement of that
has bits set that do not fit into a 32-bit variable on 64-bit architectures,
which causes a harmless gcc warning:

drivers/net/ethernet/hisilicon/hix5hd2_gmac.c: In function 'hix5hd2_port_disable':
drivers/net/ethernet/hisilicon/hix5hd2_gmac.c:374:2: warning: large integer implicitly truncated to unsigned type [-Woverflow]
  writel_relaxed(~(BITS_RX_EN | BITS_TX_EN), priv->base + PORT_EN);

This adds a cast to (u32) to tell gcc that the code is indeed fine.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c b/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c
index a5e077eac99a3b8292fd5355c142733dccbf8f89..e51892d518ff3ccca8aaed43838d7343b4844dc3 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c
+++ b/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c
@@ -371,7 +371,7 @@ static void hix5hd2_port_enable(struct hix5hd2_priv *priv)
 
 static void hix5hd2_port_disable(struct hix5hd2_priv *priv)
 {
-       writel_relaxed(~(BITS_RX_EN | BITS_TX_EN), priv->base + PORT_EN);
+       writel_relaxed(~(u32)(BITS_RX_EN | BITS_TX_EN), priv->base + PORT_EN);
        writel_relaxed(0, priv->base + DESC_WR_RD_ENA);
 }