[PATCH] serial: pch_uart: use offset_in_page() macro

[Geliang Tang]

Use offset_in_page() macro instead of open-coding.

Signed-off-by: Geliang Tang <geliangtang@xxxxxxxxx>
---
 drivers/tty/serial/pch_uart.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 42caccb..d3796dc 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -878,8 +878,7 @@ static int dma_handle_rx(struct eg20t_port *priv)
 	sg_dma_len(sg) = priv->trigger_level;
 
 	sg_set_page(&priv->sg_rx, virt_to_page(priv->rx_buf_virt),
-		     sg_dma_len(sg), (unsigned long)priv->rx_buf_virt &
-		     ~PAGE_MASK);
+		     sg_dma_len(sg), offset_in_page(priv->rx_buf_virt));
 
 	sg_dma_address(sg) = priv->rx_buf_dma;
 
-- 
2.9.3