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| author | Oliver Neukum <oliver@neukum.org> | 2009-04-20 17:28:53 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-04-23 14:15:29 -0700 |
| commit | 2400a2bfbd0e912193fe3b077f492d4980141813 (patch) | |
| tree | e2e1bcc34252c14662c80df15c44703ead9d589c /drivers/usb/serial/ti_usb_3410_5052.c | |
| parent | 212b8f0c3f5a2280bfa1d6ab13a6fe98552becaa (diff) | |
| download | linux-2400a2bfbd0e912193fe3b077f492d4980141813.tar.gz linux-2400a2bfbd0e912193fe3b077f492d4980141813.tar.bz2 linux-2400a2bfbd0e912193fe3b077f492d4980141813.zip | |
USB: removal of tty->low_latency hack dating back to the old serial code
This removes tty->low_latency from all USB serial drivers that push
data into the tty layer at hard interrupt context. It's no longer needed
and actually harmful.
Signed-off-by: Oliver Neukum <oliver@neukum.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/serial/ti_usb_3410_5052.c')
| -rw-r--r-- | drivers/usb/serial/ti_usb_3410_5052.c | 14 |
1 files changed, 1 insertions, 13 deletions
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 9c4c700c7cc6..0a64bac306ee 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -50,11 +50,10 @@ #define TI_TRANSFER_TIMEOUT 2 -#define TI_DEFAULT_LOW_LATENCY 0 #define TI_DEFAULT_CLOSING_WAIT 4000 /* in .01 secs */ /* supported setserial flags */ -#define TI_SET_SERIAL_FLAGS (ASYNC_LOW_LATENCY) +#define TI_SET_SERIAL_FLAGS 0 /* read urb states */ #define TI_READ_URB_RUNNING 0 @@ -161,7 +160,6 @@ static int ti_buf_get(struct circ_buf *cb, char *buf, int count); /* module parameters */ static int debug; -static int low_latency = TI_DEFAULT_LOW_LATENCY; static int closing_wait = TI_DEFAULT_CLOSING_WAIT; static ushort vendor_3410[TI_EXTRA_VID_PID_COUNT]; static unsigned int vendor_3410_count; @@ -296,10 +294,6 @@ MODULE_FIRMWARE("mts_edge.fw"); module_param(debug, bool, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(debug, "Enable debugging, 0=no, 1=yes"); -module_param(low_latency, bool, S_IRUGO | S_IWUSR); -MODULE_PARM_DESC(low_latency, - "TTY low_latency flag, 0=off, 1=on, default is off"); - module_param(closing_wait, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(closing_wait, "Maximum wait for data to drain in close, in .01 secs, default is 4000"); @@ -448,7 +442,6 @@ static int ti_startup(struct usb_serial *serial) spin_lock_init(&tport->tp_lock); tport->tp_uart_base_addr = (i == 0 ? TI_UART1_BASE_ADDR : TI_UART2_BASE_ADDR); - tport->tp_flags = low_latency ? ASYNC_LOW_LATENCY : 0; tport->tp_closing_wait = closing_wait; init_waitqueue_head(&tport->tp_msr_wait); init_waitqueue_head(&tport->tp_write_wait); @@ -528,10 +521,6 @@ static int ti_open(struct tty_struct *tty, if (mutex_lock_interruptible(&tdev->td_open_close_lock)) return -ERESTARTSYS; - if (tty) - tty->low_latency = - (tport->tp_flags & ASYNC_LOW_LATENCY) ? 1 : 0; - port_number = port->number - port->serial->minor; memset(&(tport->tp_icount), 0x00, sizeof(tport->tp_icount)); @@ -1454,7 +1443,6 @@ static int ti_set_serial_info(struct tty_struct *tty, struct ti_port *tport, return -EFAULT; tport->tp_flags = new_serial.flags & TI_SET_SERIAL_FLAGS; - tty->low_latency = (tport->tp_flags & ASYNC_LOW_LATENCY) ? 1 : 0; tport->tp_closing_wait = new_serial.closing_wait; return 0; |