From: Geliang Tang <geliangtang@gmail.com>
To: Richard Genoud <richard.genoud@gmail.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jslaby@suse.com>
Cc: Geliang Tang <geliangtang@gmail.com>,
linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] tty/serial: atmel: use offset_in_page() macro
Date: Sat, 22 Apr 2017 09:21:12 +0800 [thread overview]
Message-ID: <5faae8a0740a804663c1066b23e2d5e7e9ebcbd3.1492758735.git.geliangtang@gmail.com> (raw)
In-Reply-To: <4dbc77ccaaed98b183cf4dba58a4fa325fd65048.1492758503.git.geliangtang@gmail.com>
Use offset_in_page() macro instead of open-coding.
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
---
drivers/tty/serial/atmel_serial.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index c355ac9..f398db8 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -959,7 +959,7 @@ 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 +1141,7 @@ 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,
--
2.9.3
next prev parent reply other threads:[~2017-04-22 1:23 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-22 1:21 [PATCH] fs/ocfs2/cluster: " Geliang Tang
2017-04-22 1:21 ` [PATCH] gdth: " Geliang Tang
2017-04-22 1:21 ` [PATCH] net: atheros: atl1: " Geliang Tang
2017-04-24 17:58 ` David Miller
2017-04-22 1:21 ` [PATCH] serial: pch_uart: " Geliang Tang
2017-04-22 1:21 ` Geliang Tang [this message]
2017-04-24 7:12 ` [PATCH] tty/serial: atmel: " Richard Genoud
2017-04-29 1:39 ` [PATCH v2] " Geliang Tang
2017-05-02 8:47 ` Richard Genoud
2017-04-22 1:21 ` [PATCH] xen/scsifront: " Geliang Tang
2017-04-24 5:05 ` Juergen Gross
2017-04-24 22:15 ` Martin K. Petersen
2017-04-25 5:07 ` Juergen Gross
2017-04-25 6:58 ` Juergen Gross
2017-04-22 1:21 ` [PATCH] xprtrdma: " Geliang Tang
2017-04-22 3:37 ` Chuck Lever
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5faae8a0740a804663c1066b23e2d5e7e9ebcbd3.1492758735.git.geliangtang@gmail.com \
--to=geliangtang@gmail.com \
--cc=gregkh@linuxfoundation.org \
--cc=jslaby@suse.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-serial@vger.kernel.org \
--cc=richard.genoud@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®