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Date: Thu, 12 May 2016 10:48:54 +0200
From: Mathieu OTHACEHE <m.othacehe@...il.com>
To: johan@...nel.org
Cc: gregkh@...uxfoundation.org, linux-usb@...r.kernel.org,
linux-kernel@...r.kernel.org,
Mathieu OTHACEHE <m.othacehe@...il.com>
Subject: [PATCH 22/36] usb: serial: ti_usb_3410_5052: Change ti_get/set_serial_info function arguments
It is sufficient to pass usb_serial_port structure to ti_get_serial_info
and ti_set_serial_info.
Also move functions above ioctl to avoid function prototyping
and use unsigned int instead of unsigned for cwait variable.
Signed-off-by: Mathieu OTHACEHE <m.othacehe@...il.com>
---
drivers/usb/serial/ti_usb_3410_5052.c | 122 ++++++++++++++++------------------
1 file changed, 57 insertions(+), 65 deletions(-)
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index 3d36ae7..2a993a2 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -306,10 +306,6 @@ static void ti_interrupt_callback(struct urb *urb);
static int ti_set_mcr(struct ti_port *tport, unsigned int mcr);
static int ti_get_lsr(struct ti_port *tport, u8 *lsr);
-static int ti_get_serial_info(struct ti_port *tport,
- struct serial_struct __user *ret_arg);
-static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport,
- struct serial_struct __user *new_arg);
static void ti_handle_new_msr(struct usb_serial_port *port, u8 msr);
static int ti_download_firmware(struct usb_serial *serial);
@@ -847,19 +843,71 @@ static bool ti_tx_empty(struct usb_serial_port *port)
return true;
}
+static int ti_get_serial_info(struct usb_serial_port *port,
+ struct serial_struct __user *ret_arg)
+{
+ struct ti_device *tdev = usb_get_serial_data(port->serial);
+ struct serial_struct ret_serial;
+ unsigned int cwait;
+ int baud_base;
+
+ if (!ret_arg)
+ return -EFAULT;
+
+ cwait = port->port.closing_wait;
+ if (cwait != ASYNC_CLOSING_WAIT_NONE)
+ cwait = jiffies_to_msecs(cwait) / 10;
+
+ memset(&ret_serial, 0, sizeof(ret_serial));
+
+ if (tdev->td_is_3410)
+ baud_base = TI_3410_BAUD_BASE;
+ else
+ baud_base = TI_5052_BAUD_BASE;
+
+ ret_serial.type = PORT_16550A;
+ ret_serial.line = port->minor;
+ ret_serial.port = port->port_number;
+ ret_serial.xmit_fifo_size = port->bulk_out_size;
+ ret_serial.baud_base = baud_base;
+ ret_serial.closing_wait = cwait;
+
+ if (copy_to_user(ret_arg, &ret_serial, sizeof(*ret_arg)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int ti_set_serial_info(struct usb_serial_port *port,
+ struct serial_struct __user *new_arg)
+{
+ struct serial_struct new_serial;
+ unsigned int cwait;
+
+ if (copy_from_user(&new_serial, new_arg, sizeof(new_serial)))
+ return -EFAULT;
+
+ cwait = new_serial.closing_wait;
+ if (cwait != ASYNC_CLOSING_WAIT_NONE)
+ cwait = msecs_to_jiffies(10 * new_serial.closing_wait);
+
+ port->port.closing_wait = cwait;
+
+ return 0;
+}
+
static int ti_ioctl(struct tty_struct *tty,
unsigned int cmd, unsigned long arg)
{
struct usb_serial_port *port = tty->driver_data;
- struct ti_port *tport = usb_get_serial_port_data(port);
switch (cmd) {
case TIOCGSERIAL:
- return ti_get_serial_info(tport,
- (struct serial_struct __user *)arg);
+ return ti_get_serial_info(port,
+ (struct serial_struct __user *)arg);
case TIOCSSERIAL:
- return ti_set_serial_info(tty, tport,
- (struct serial_struct __user *)arg);
+ return ti_set_serial_info(port,
+ (struct serial_struct __user *)arg);
}
return -ENOIOCTLCMD;
}
@@ -1189,62 +1237,6 @@ free_data:
return status;
}
-
-static int ti_get_serial_info(struct ti_port *tport,
- struct serial_struct __user *ret_arg)
-{
- struct usb_serial_port *port = tport->tp_port;
- struct serial_struct ret_serial;
- unsigned cwait;
- int baud_base;
-
- if (!ret_arg)
- return -EFAULT;
-
- cwait = port->port.closing_wait;
- if (cwait != ASYNC_CLOSING_WAIT_NONE)
- cwait = jiffies_to_msecs(cwait) / 10;
-
- memset(&ret_serial, 0, sizeof(ret_serial));
-
- if (tport->tp_tdev->td_is_3410)
- baud_base = TI_3410_BAUD_BASE;
- else
- baud_base = TI_5052_BAUD_BASE;
-
- ret_serial.type = PORT_16550A;
- ret_serial.line = port->minor;
- ret_serial.port = port->port_number;
- ret_serial.xmit_fifo_size = port->bulk_out_size;
- ret_serial.baud_base = baud_base;
- ret_serial.closing_wait = cwait;
-
- if (copy_to_user(ret_arg, &ret_serial, sizeof(*ret_arg)))
- return -EFAULT;
-
- return 0;
-}
-
-
-static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport,
- struct serial_struct __user *new_arg)
-{
- struct serial_struct new_serial;
- unsigned cwait;
-
- if (copy_from_user(&new_serial, new_arg, sizeof(new_serial)))
- return -EFAULT;
-
- cwait = new_serial.closing_wait;
- if (cwait != ASYNC_CLOSING_WAIT_NONE)
- cwait = msecs_to_jiffies(10 * new_serial.closing_wait);
-
- tport->tp_port->port.closing_wait = cwait;
-
- return 0;
-}
-
-
static void ti_handle_new_msr(struct usb_serial_port *port, u8 msr)
{
struct ti_port *tport = usb_get_serial_port_data(port);
--
2.8.2
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