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| author | Geliang Tang <geliangtang@gmail.com> | 2017-04-29 04:39:00 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-18 17:34:55 +0300 |
| commit | 2b5cf14bd0c82164eb3689dd4cfb67a78a23302c (patch) | |
| tree | 662085223cb8d49409227c8ce645907b3fc62d31 | |
| parent | 228a9ff8fed0c800ffb9b665916646b1d5833a67 (diff) | |
| download | linux-2b5cf14bd0c82164eb3689dd4cfb67a78a23302c.tar.xz | |
tty/serial: atmel: use offset_in_page() macro
Use offset_in_page() macro instead of open-coding.
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Acked-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/serial/atmel_serial.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c index c355ac9abafc..d25f044158ff 100644 --- a/drivers/tty/serial/atmel_serial.c +++ b/drivers/tty/serial/atmel_serial.c @@ -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, |