kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/drivers/usb/serial/mos7720.c
..
..
@@ -284,11 +284,12 @@
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  * port callback had to be deferred because the disconnect mutex could not be
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  * obtained at the time.
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  */
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-static void send_deferred_urbs(unsigned long _mos_parport)
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+static void send_deferred_urbs(struct tasklet_struct *t)
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 {
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 	int ret_val;
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 	unsigned long flags;
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-	struct mos7715_parport *mos_parport = (void *)_mos_parport;
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+	struct mos7715_parport *mos_parport = from_tasklet(mos_parport, t,
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+							   urb_tasklet);
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 	struct urbtracker *urbtrack, *tmp;
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 	struct list_head *cursor, *next;
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 	struct device *dev;
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@@ -720,8 +721,7 @@
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 	INIT_LIST_HEAD(&mos_parport->deferred_urbs);
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 	usb_set_serial_data(serial, mos_parport); /* hijack private pointer */
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 	mos_parport->serial = serial;
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-	tasklet_init(&mos_parport->urb_tasklet, send_deferred_urbs,
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-		     (unsigned long) mos_parport);
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+	tasklet_setup(&mos_parport->urb_tasklet, send_deferred_urbs);
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 	init_completion(&mos_parport->syncmsg_compl);
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 	/* cycle parallel port reset bit */
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@@ -1792,69 +1792,20 @@
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 	return 0;
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 }
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1794
 
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-static int set_modem_info(struct moschip_port *mos7720_port, unsigned int cmd,
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-			  unsigned int __user *value)
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+static int get_serial_info(struct tty_struct *tty,
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+			   struct serial_struct *ss)
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 {
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-	unsigned int mcr;
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-	unsigned int arg;
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+	struct usb_serial_port *port = tty->driver_data;
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+	struct moschip_port *mos7720_port = usb_get_serial_port_data(port);
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1800
 
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-	struct usb_serial_port *port;
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-
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-	if (mos7720_port == NULL)
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-		return -1;
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-
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-	port = (struct usb_serial_port *)mos7720_port->port;
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-	mcr = mos7720_port->shadowMCR;
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-
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-	if (copy_from_user(&arg, value, sizeof(int)))
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-		return -EFAULT;
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-
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-	switch (cmd) {
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-	case TIOCMBIS:
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-		if (arg & TIOCM_RTS)
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-			mcr |= UART_MCR_RTS;
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-		if (arg & TIOCM_DTR)
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-			mcr |= UART_MCR_RTS;
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-		if (arg & TIOCM_LOOP)
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-			mcr |= UART_MCR_LOOP;
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-		break;
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-
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-	case TIOCMBIC:
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-		if (arg & TIOCM_RTS)
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-			mcr &= ~UART_MCR_RTS;
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-		if (arg & TIOCM_DTR)
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-			mcr &= ~UART_MCR_RTS;
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-		if (arg & TIOCM_LOOP)
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-			mcr &= ~UART_MCR_LOOP;
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-		break;
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-
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-	}
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-
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-	mos7720_port->shadowMCR = mcr;
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-	write_mos_reg(port->serial, port->port_number, MOS7720_MCR,
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-		      mos7720_port->shadowMCR);
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-
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-	return 0;
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-}
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-
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-static int get_serial_info(struct moschip_port *mos7720_port,
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-			   struct serial_struct __user *retinfo)
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-{
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-	struct serial_struct tmp;
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-
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-	memset(&tmp, 0, sizeof(tmp));
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-
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-	tmp.type		= PORT_16550A;
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-	tmp.line		= mos7720_port->port->minor;
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-	tmp.port		= mos7720_port->port->port_number;
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-	tmp.irq			= 0;
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-	tmp.xmit_fifo_size	= NUM_URBS * URB_TRANSFER_BUFFER_SIZE;
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-	tmp.baud_base		= 9600;
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-	tmp.close_delay		= 5*HZ;
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-	tmp.closing_wait	= 30*HZ;
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-
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-	if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
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-		return -EFAULT;
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+	ss->type		= PORT_16550A;
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+	ss->line		= mos7720_port->port->minor;
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+	ss->port		= mos7720_port->port->port_number;
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+	ss->irq			= 0;
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+	ss->xmit_fifo_size	= NUM_URBS * URB_TRANSFER_BUFFER_SIZE;
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+	ss->baud_base		= 9600;
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+	ss->close_delay		= 5*HZ;
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+	ss->closing_wait	= 30*HZ;
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 	return 0;
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 }
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1811
 
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@@ -1873,18 +1824,6 @@
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 		dev_dbg(&port->dev, "%s TIOCSERGETLSR\n", __func__);
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 		return get_lsr_info(tty, mos7720_port,
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 					(unsigned int __user *)arg);
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-
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-	/* FIXME: These should be using the mode methods */
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-	case TIOCMBIS:
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-	case TIOCMBIC:
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-		dev_dbg(&port->dev, "%s TIOCMSET/TIOCMBIC/TIOCMSET\n", __func__);
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-		return set_modem_info(mos7720_port, cmd,
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-				      (unsigned int __user *)arg);
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-
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-	case TIOCGSERIAL:
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-		dev_dbg(&port->dev, "%s TIOCGSERIAL\n", __func__);
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-		return get_serial_info(mos7720_port,
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-				       (struct serial_struct __user *)arg);
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 	}
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 	return -ENOIOCTLCMD;
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@@ -2017,6 +1956,7 @@
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 	.ioctl			= mos7720_ioctl,
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 	.tiocmget		= mos7720_tiocmget,
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 	.tiocmset		= mos7720_tiocmset,
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+	.get_serial		= get_serial_info,
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 	.set_termios		= mos7720_set_termios,
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 	.write			= mos7720_write,
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 	.write_room		= mos7720_write_room,