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Commit 2b5cf14b authored by Geliang Tang's avatar Geliang Tang Committed by Greg Kroah-Hartman
Browse files

tty/serial: atmel: use offset_in_page() macro 



Use offset_in_page() macro instead of open-coding.

Signed-off-by: default avatarGeliang Tang <geliangtang@gmail.com>
Acked-by: default avatarRichard Genoud <richard.genoud@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 228a9ff8

drivers/tty/serial/atmel_serial.c

+3 −2
Original line number Diff line number Diff line
@@ -46,6 +46,7 @@ 
#include <linux/err.h>

#include <linux/irq.h>

#include <linux/suspend.h>

#include <linux/mm.h>



#include <asm/io.h>

#include <asm/ioctls.h>
@@ -959,7 +960,7 @@ static int atmel_prepare_tx_dma(struct uart_port *port) 
	sg_set_page(&atmel_port->sg_tx,

			virt_to_page(port->state->xmit.buf),

			UART_XMIT_SIZE,

			(unsigned long)port->state->xmit.buf & ~PAGE_MASK);

			offset_in_page(port->state->xmit.buf));

	nent = dma_map_sg(port->dev,

				&atmel_port->sg_tx,

				1,
@@ -1141,7 +1142,7 @@ static int atmel_prepare_rx_dma(struct uart_port *port) 
	sg_set_page(&atmel_port->sg_rx,

		    virt_to_page(ring->buf),

		    sizeof(struct atmel_uart_char) * ATMEL_SERIAL_RINGSIZE,

		    (unsigned long)ring->buf & ~PAGE_MASK);

		    offset_in_page(ring->buf));

	nent = dma_map_sg(port->dev,

			  &atmel_port->sg_rx,

			  1,