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-rw-r--r--drivers/tty/mxser.c25
1 files changed, 0 insertions, 25 deletions
diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c
index 68c2f2346dcf..38e12ff17529 100644
--- a/drivers/tty/mxser.c
+++ b/drivers/tty/mxser.c
@@ -64,16 +64,9 @@
#define OP_MODE_MASK 3
#define MOXA_ASPP_OQUEUE (MOXA + 70)
-#define MOXA_ASPP_LSTATUS (MOXA + 74)
/* --------------------------------------------------- */
-#define NPPI_NOTIFY_PARITY 0x01
-#define NPPI_NOTIFY_FRAMING 0x02
-#define NPPI_NOTIFY_HW_OVERRUN 0x04
-#define NPPI_NOTIFY_SW_OVERRUN 0x08
-#define NPPI_NOTIFY_BREAK 0x10
-
/*
* Follow just what Moxa Must chip defines.
*
@@ -304,7 +297,6 @@ struct mxser_port {
unsigned char ldisc_stop_rx;
int custom_divisor;
- unsigned char err_shadow;
struct async_icount icount; /* kernel counters for 4 input interrupts */
unsigned int timeout;
@@ -1601,13 +1593,6 @@ static int mxser_ioctl(struct tty_struct *tty,
return put_user(len, (int __user *)argp);
}
- case MOXA_ASPP_LSTATUS: {
- if (put_user(info->err_shadow, (unsigned char __user *)argp))
- return -EFAULT;
-
- info->err_shadow = 0;
- return 0;
- }
default:
return -ENOIOCTLCMD;
}
@@ -2033,15 +2018,6 @@ static bool mxser_port_isr(struct mxser_port *port)
status = inb(port->ioaddr + UART_LSR);
- if (status & UART_LSR_PE)
- port->err_shadow |= NPPI_NOTIFY_PARITY;
- if (status & UART_LSR_FE)
- port->err_shadow |= NPPI_NOTIFY_FRAMING;
- if (status & UART_LSR_OE)
- port->err_shadow |= NPPI_NOTIFY_HW_OVERRUN;
- if (status & UART_LSR_BI)
- port->err_shadow |= NPPI_NOTIFY_BREAK;
-
if (port->board->must_hwid) {
if (iir == MOXA_MUST_IIR_GDA ||
iir == MOXA_MUST_IIR_RDA ||
@@ -2172,7 +2148,6 @@ static int mxser_initbrd(struct mxser_board *brd)
info->port.close_delay = 5 * HZ / 10;
info->port.closing_wait = 30 * HZ;
info->normal_termios = mxvar_sdriver->init_termios;
- info->err_shadow = 0;
spin_lock_init(&info->slock);
/* before set INT ISR, disable all int */