From fbf947736968cbb0e55ec4b5d861d31a4a106c99 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 16 Apr 2013 18:01:23 +0200 Subject: [PATCH] USB: omninet: switch to generic read implementation Switch to the more efficient generic read implementation. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/omninet.c | 43 +++--------------------------------- 1 file changed, 3 insertions(+), 40 deletions(-) diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c index 7aaf9692b334..5739bf6f7200 100644 --- a/drivers/usb/serial/omninet.c +++ b/drivers/usb/serial/omninet.c @@ -33,8 +33,7 @@ /* function prototypes */ static int omninet_open(struct tty_struct *tty, struct usb_serial_port *port); -static void omninet_close(struct usb_serial_port *port); -static void omninet_read_bulk_callback(struct urb *urb); +static void omninet_process_read_urb(struct urb *urb); static void omninet_write_bulk_callback(struct urb *urb); static int omninet_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count); @@ -61,11 +60,10 @@ static struct usb_serial_driver zyxel_omninet_device = { .port_probe = omninet_port_probe, .port_remove = omninet_port_remove, .open = omninet_open, - .close = omninet_close, .write = omninet_write, .write_room = omninet_write_room, - .read_bulk_callback = omninet_read_bulk_callback, .write_bulk_callback = omninet_write_bulk_callback, + .process_read_urb = omninet_process_read_urb, .disconnect = omninet_disconnect, }; @@ -134,26 +132,13 @@ static int omninet_open(struct tty_struct *tty, struct usb_serial_port *port) { struct usb_serial *serial = port->serial; struct usb_serial_port *wport; - int result = 0; wport = serial->port[1]; tty_port_tty_set(&wport->port, tty); - /* Start reading from the device */ - result = usb_submit_urb(port->read_urb, GFP_KERNEL); - if (result) - dev_err(&port->dev, - "%s - failed submitting read urb, error %d\n", - __func__, result); - return result; -} - -static void omninet_close(struct usb_serial_port *port) -{ - usb_kill_urb(port->read_urb); + return usb_serial_generic_open(tty, port); } - #define OMNINET_HEADERLEN 4 #define OMNINET_BULKOUTSIZE 64 #define OMNINET_PAYLOADSIZE (OMNINET_BULKOUTSIZE - OMNINET_HEADERLEN) @@ -175,28 +160,6 @@ static void omninet_process_read_urb(struct urb *urb) tty_flip_buffer_push(&port->port); } -static void omninet_read_bulk_callback(struct urb *urb) -{ - struct usb_serial_port *port = urb->context; - int status = urb->status; - int result; - - if (status) { - dev_dbg(&port->dev, "%s - nonzero read bulk status received: %d\n", - __func__, status); - return; - } - - omninet_process_read_urb(urb); - - /* Continue trying to always read */ - result = usb_submit_urb(urb, GFP_ATOMIC); - if (result) - dev_err(&port->dev, - "%s - failed resubmitting read urb, error %d\n", - __func__, result); -} - static int omninet_write(struct tty_struct *tty, struct usb_serial_port *port, const unsigned char *buf, int count) { -- 2.20.1