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serial: pch_uart: use offset_in_page() macro

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Use offset_in_page() macro instead of open-coding.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Geliang Tang 2017-04-22 09:21:11 +08:00 committed by Greg Kroah-Hartman
parent 2b5cf14bd0
commit d1e06a4392
1 changed files with 1 additions and 2 deletions
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3
drivers/tty/serial/pch_uart.c
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@ -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;