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Message-Id: <1412528475-1449-5-git-send-email-fabf@skynet.be>
Date: Sun, 5 Oct 2014 19:01:05 +0200
From: Fabian Frederick <fabf@...net.be>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Fabian Frederick <fabf@...net.be>, Jiri Slaby <jslaby@...e.cz>,
linux-serial@...r.kernel.org
Subject: [PATCH 04/13 linux-next] serial: mpsc: use container_of to resolve mpsc_port_info from uart_port
Use container_of instead of casting first structure member.
Signed-off-by: Fabian Frederick <fabf@...net.be>
---
drivers/tty/serial/mpsc.c | 39 ++++++++++++++++++++++++++-------------
1 file changed, 26 insertions(+), 13 deletions(-)
diff --git a/drivers/tty/serial/mpsc.c b/drivers/tty/serial/mpsc.c
index ae49856..5d5499b 100644
--- a/drivers/tty/serial/mpsc.c
+++ b/drivers/tty/serial/mpsc.c
@@ -1246,7 +1246,8 @@ static irqreturn_t mpsc_sdma_intr(int irq, void *dev_id)
*/
static uint mpsc_tx_empty(struct uart_port *port)
{
- struct mpsc_port_info *pi = (struct mpsc_port_info *)port;
+ struct mpsc_port_info *pi =
+ container_of(port, struct mpsc_port_info, port);
ulong iflags;
uint rc;
@@ -1264,7 +1265,8 @@ static void mpsc_set_mctrl(struct uart_port *port, uint mctrl)
static uint mpsc_get_mctrl(struct uart_port *port)
{
- struct mpsc_port_info *pi = (struct mpsc_port_info *)port;
+ struct mpsc_port_info *pi =
+ container_of(port, struct mpsc_port_info, port);
u32 mflags, status;
status = (pi->mirror_regs) ? pi->MPSC_CHR_10_m
@@ -1281,7 +1283,8 @@ static uint mpsc_get_mctrl(struct uart_port *port)
static void mpsc_stop_tx(struct uart_port *port)
{
- struct mpsc_port_info *pi = (struct mpsc_port_info *)port;
+ struct mpsc_port_info *pi =
+ container_of(port, struct mpsc_port_info, port);
pr_debug("mpsc_stop_tx[%d]\n", port->line);
@@ -1290,7 +1293,8 @@ static void mpsc_stop_tx(struct uart_port *port)
static void mpsc_start_tx(struct uart_port *port)
{
- struct mpsc_port_info *pi = (struct mpsc_port_info *)port;
+ struct mpsc_port_info *pi =
+ container_of(port, struct mpsc_port_info, port);
unsigned long iflags;
spin_lock_irqsave(&pi->tx_lock, iflags);
@@ -1316,7 +1320,8 @@ static void mpsc_start_rx(struct mpsc_port_info *pi)
static void mpsc_stop_rx(struct uart_port *port)
{
- struct mpsc_port_info *pi = (struct mpsc_port_info *)port;
+ struct mpsc_port_info *pi =
+ container_of(port, struct mpsc_port_info, port);
pr_debug("mpsc_stop_rx[%d]: Stopping...\n", port->line);
@@ -1338,7 +1343,8 @@ static void mpsc_stop_rx(struct uart_port *port)
static void mpsc_break_ctl(struct uart_port *port, int ctl)
{
- struct mpsc_port_info *pi = (struct mpsc_port_info *)port;
+ struct mpsc_port_info *pi =
+ container_of(port, struct mpsc_port_info, port);
ulong flags;
u32 v;
@@ -1353,7 +1359,8 @@ static void mpsc_break_ctl(struct uart_port *port, int ctl)
static int mpsc_startup(struct uart_port *port)
{
- struct mpsc_port_info *pi = (struct mpsc_port_info *)port;
+ struct mpsc_port_info *pi =
+ container_of(port, struct mpsc_port_info, port);
u32 flag = 0;
int rc;
@@ -1383,7 +1390,8 @@ static int mpsc_startup(struct uart_port *port)
static void mpsc_shutdown(struct uart_port *port)
{
- struct mpsc_port_info *pi = (struct mpsc_port_info *)port;
+ struct mpsc_port_info *pi =
+ container_of(port, struct mpsc_port_info, port);
pr_debug("mpsc_shutdown[%d]: Shutting down MPSC\n", port->line);
@@ -1394,7 +1402,8 @@ static void mpsc_shutdown(struct uart_port *port)
static void mpsc_set_termios(struct uart_port *port, struct ktermios *termios,
struct ktermios *old)
{
- struct mpsc_port_info *pi = (struct mpsc_port_info *)port;
+ struct mpsc_port_info *pi =
+ container_of(port, struct mpsc_port_info, port);
u32 baud;
ulong flags;
u32 chr_bits, stop_bits, par;
@@ -1498,7 +1507,8 @@ static int mpsc_request_port(struct uart_port *port)
static void mpsc_release_port(struct uart_port *port)
{
- struct mpsc_port_info *pi = (struct mpsc_port_info *)port;
+ struct mpsc_port_info *pi =
+ container_of(port, struct mpsc_port_info, port);
if (pi->ready) {
mpsc_uninit_rings(pi);
@@ -1513,7 +1523,8 @@ static void mpsc_config_port(struct uart_port *port, int flags)
static int mpsc_verify_port(struct uart_port *port, struct serial_struct *ser)
{
- struct mpsc_port_info *pi = (struct mpsc_port_info *)port;
+ struct mpsc_port_info *pi =
+ container_of(port, struct mpsc_port_info, port);
int rc = 0;
pr_debug("mpsc_verify_port[%d]: Verifying port data\n", pi->port.line);
@@ -1548,7 +1559,8 @@ static void mpsc_put_poll_char(struct uart_port *port,
static int mpsc_get_poll_char(struct uart_port *port)
{
- struct mpsc_port_info *pi = (struct mpsc_port_info *)port;
+ struct mpsc_port_info *pi =
+ container_of(port, struct mpsc_port_info, port);
struct mpsc_rx_desc *rxre;
u32 cmdstat, bytes_in, i;
u8 *bp;
@@ -1648,7 +1660,8 @@ static int mpsc_get_poll_char(struct uart_port *port)
static void mpsc_put_poll_char(struct uart_port *port,
unsigned char c)
{
- struct mpsc_port_info *pi = (struct mpsc_port_info *)port;
+ struct mpsc_port_info *pi =
+ container_of(port, struct mpsc_port_info, port);
u32 data;
data = readl(pi->mpsc_base + MPSC_MPCR);
--
1.9.1
--
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