From cf2c7481d2ff7f0c266de873b2fe93883e9782f9 Mon Sep 17 00:00:00 2001 From: Pete Zaitcev Date: Mon, 22 May 2006 21:58:49 -0700 Subject: [PATCH] [PATCH] USB serial: encapsulate schedule_work, remove double-calling I'm going to throw schedule_work away, it's retarded. But for starters, let's have it encapsulated. Also, generic and whiteheat were both calling usb_serial_port_softint and scheduled work. Only one was necessary. Signed-off-by: Pete Zaitcev Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/cyberjack.c | 2 +- drivers/usb/serial/cypress_m8.c | 2 +- drivers/usb/serial/empeg.c | 2 +- drivers/usb/serial/ftdi_sio.c | 2 +- drivers/usb/serial/garmin_gps.c | 2 +- drivers/usb/serial/generic.c | 4 +--- drivers/usb/serial/ipaq.c | 2 +- drivers/usb/serial/ipw.c | 2 +- drivers/usb/serial/ir-usb.c | 2 +- drivers/usb/serial/keyspan.c | 2 +- drivers/usb/serial/kl5kusb105.c | 3 +-- drivers/usb/serial/omninet.c | 2 +- drivers/usb/serial/option.c | 3 +-- drivers/usb/serial/pl2303.c | 2 +- drivers/usb/serial/usb-serial.c | 14 ++++++++++++-- drivers/usb/serial/usb-serial.h | 2 +- drivers/usb/serial/visor.c | 2 +- drivers/usb/serial/whiteheat.c | 4 +--- 18 files changed, 29 insertions(+), 25 deletions(-) diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c index 2357b1d102d7..1fd5c5a9f2ef 100644 --- a/drivers/usb/serial/cyberjack.c +++ b/drivers/usb/serial/cyberjack.c @@ -469,7 +469,7 @@ static void cyberjack_write_bulk_callback (struct urb *urb, struct pt_regs *regs exit: spin_unlock(&priv->lock); - schedule_work(&port->work); + usb_serial_port_softint(port); } static int __init cyberjack_init (void) diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index 7212fbe3b6f2..5de76efe1b37 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -824,7 +824,7 @@ static void cypress_send(struct usb_serial_port *port) priv->bytes_out += count; /* do not count the line control and size bytes */ spin_unlock_irqrestore(&priv->lock, flags); - schedule_work(&port->work); + usb_serial_port_softint(port); } /* cypress_send */ diff --git a/drivers/usb/serial/empeg.c b/drivers/usb/serial/empeg.c index 63f7c78a1152..afca1eae5fb5 100644 --- a/drivers/usb/serial/empeg.c +++ b/drivers/usb/serial/empeg.c @@ -335,7 +335,7 @@ static void empeg_write_bulk_callback (struct urb *urb, struct pt_regs *regs) return; } - schedule_work(&port->work); + usb_serial_port_softint(port); } diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 1122a0da41c1..590c7ec851db 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1472,7 +1472,7 @@ static void ftdi_write_bulk_callback (struct urb *urb, struct pt_regs *regs) return; } - schedule_work(&port->work); + usb_serial_port_softint(port); } /* ftdi_write_bulk_callback */ diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c index 5ec9bf5bac8d..04767759cf8a 100644 --- a/drivers/usb/serial/garmin_gps.c +++ b/drivers/usb/serial/garmin_gps.c @@ -1012,7 +1012,7 @@ static void garmin_write_bulk_callback (struct urb *urb, struct pt_regs *regs) garmin_data_p->flags |= CLEAR_HALT_REQUIRED; } - schedule_work(&port->work); + usb_serial_port_softint(port); } diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index c62cc2876519..07a478c59fb2 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -299,9 +299,7 @@ void usb_serial_generic_write_bulk_callback (struct urb *urb, struct pt_regs *re return; } - usb_serial_port_softint((void *)port); - - schedule_work(&port->work); + usb_serial_port_softint(port); } EXPORT_SYMBOL_GPL(usb_serial_generic_write_bulk_callback); diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c index 9a5c97989562..9da6d2a8f2b0 100644 --- a/drivers/usb/serial/ipaq.c +++ b/drivers/usb/serial/ipaq.c @@ -870,7 +870,7 @@ static void ipaq_write_bulk_callback(struct urb *urb, struct pt_regs *regs) spin_unlock_irqrestore(&write_list_lock, flags); } - schedule_work(&port->work); + usb_serial_port_softint(port); } static int ipaq_write_room(struct usb_serial_port *port) diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c index e760a70242c1..a4a0bfeaab00 100644 --- a/drivers/usb/serial/ipw.c +++ b/drivers/usb/serial/ipw.c @@ -376,7 +376,7 @@ static void ipw_write_bulk_callback(struct urb *urb, struct pt_regs *regs) if (urb->status) dbg("%s - nonzero write bulk status received: %d", __FUNCTION__, urb->status); - schedule_work(&port->work); + usb_serial_port_softint(port); } static int ipw_write(struct usb_serial_port *port, const unsigned char *buf, int count) diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c index 426182ddc42a..9432c7302275 100644 --- a/drivers/usb/serial/ir-usb.c +++ b/drivers/usb/serial/ir-usb.c @@ -408,7 +408,7 @@ static void ir_write_bulk_callback (struct urb *urb, struct pt_regs *regs) urb->actual_length, urb->transfer_buffer); - schedule_work(&port->work); + usb_serial_port_softint(port); } static void ir_read_bulk_callback (struct urb *urb, struct pt_regs *regs) diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c index 052b735c4fbd..2cf6ade704e4 100644 --- a/drivers/usb/serial/keyspan.c +++ b/drivers/usb/serial/keyspan.c @@ -481,7 +481,7 @@ static void usa2x_outdat_callback(struct urb *urb, struct pt_regs *regs) dbg ("%s - urb %d", __FUNCTION__, urb == p_priv->out_urbs[1]); if (port->open_count) - schedule_work(&port->work); + usb_serial_port_softint(port); } static void usa26_inack_callback(struct urb *urb, struct pt_regs *regs) diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c index 78335a5f7743..65d79f630fa4 100644 --- a/drivers/usb/serial/kl5kusb105.c +++ b/drivers/usb/serial/kl5kusb105.c @@ -569,8 +569,7 @@ static void klsi_105_write_bulk_callback ( struct urb *urb, struct pt_regs *regs return; } - /* from generic_write_bulk_callback */ - schedule_work(&port->work); + usb_serial_port_softint(port); } /* klsi_105_write_bulk_completion_callback */ diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c index 238033a87092..6dcdb5f598b8 100644 --- a/drivers/usb/serial/omninet.c +++ b/drivers/usb/serial/omninet.c @@ -320,7 +320,7 @@ static void omninet_write_bulk_callback (struct urb *urb, struct pt_regs *regs) return; } - schedule_work(&port->work); + usb_serial_port_softint(port); } diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 5cf2b80add7a..759d36087184 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -365,8 +365,7 @@ static void option_outdat_callback(struct urb *urb, struct pt_regs *regs) port = (struct usb_serial_port *) urb->context; - if (port->open_count) - schedule_work(&port->work); + usb_serial_port_softint(port); } static void option_instat_callback(struct urb *urb, struct pt_regs *regs) diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index c96714bb1cb8..2ca6dd94796f 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -314,7 +314,7 @@ static void pl2303_send(struct usb_serial_port *port) // TODO: reschedule pl2303_send } - schedule_work(&port->work); + usb_serial_port_softint(port); } static int pl2303_write_room(struct usb_serial_port *port) diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 92200f05b531..7a1cc1b04979 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -531,7 +531,17 @@ static int serial_tiocmset (struct tty_struct *tty, struct file *file, return -EINVAL; } -void usb_serial_port_softint(void *private) +/* + * We would be calling tty_wakeup here, but unfortunately some line + * disciplines have an annoying habit of calling tty->write from + * the write wakeup callback (e.g. n_hdlc.c). + */ +void usb_serial_port_softint(struct usb_serial_port *port) +{ + schedule_work(&port->work); +} + +static void usb_serial_port_work(void *private) { struct usb_serial_port *port = private; struct tty_struct *tty; @@ -794,7 +804,7 @@ int usb_serial_probe(struct usb_interface *interface, port->serial = serial; spin_lock_init(&port->lock); mutex_init(&port->mutex); - INIT_WORK(&port->work, usb_serial_port_softint, port); + INIT_WORK(&port->work, usb_serial_port_work, port); serial->port[i] = port; } diff --git a/drivers/usb/serial/usb-serial.h b/drivers/usb/serial/usb-serial.h index c07ece3fef1d..d53ea9b11e81 100644 --- a/drivers/usb/serial/usb-serial.h +++ b/drivers/usb/serial/usb-serial.h @@ -236,7 +236,7 @@ struct usb_serial_driver { extern int usb_serial_register(struct usb_serial_driver *driver); extern void usb_serial_deregister(struct usb_serial_driver *driver); -extern void usb_serial_port_softint(void *private); +extern void usb_serial_port_softint(struct usb_serial_port *port); extern int usb_serial_probe(struct usb_interface *iface, const struct usb_device_id *id); extern void usb_serial_disconnect(struct usb_interface *iface); diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c index f5c3841d4843..9e89b8d54f72 100644 --- a/drivers/usb/serial/visor.c +++ b/drivers/usb/serial/visor.c @@ -480,7 +480,7 @@ static void visor_write_bulk_callback (struct urb *urb, struct pt_regs *regs) --priv->outstanding_urbs; spin_unlock_irqrestore(&priv->lock, flags); - schedule_work(&port->work); + usb_serial_port_softint(port); } diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c index f806553cd9a4..582860ac8764 100644 --- a/drivers/usb/serial/whiteheat.c +++ b/drivers/usb/serial/whiteheat.c @@ -1089,9 +1089,7 @@ static void whiteheat_write_callback(struct urb *urb, struct pt_regs *regs) return; } - usb_serial_port_softint((void *)port); - - schedule_work(&port->work); + usb_serial_port_softint(port); }